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  <doc>
    <id>5953</id>
    <completedYear/>
    <publishedYear>1999</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>146</pageFirst>
    <pageLast>148</pageLast>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>35</volume>
    <type>article</type>
    <publisherName>The Institution of Engineering and Technology IET</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Fabrication approach for antiphase narrow linewidth complex coupled 1.55 μm DFB lasers</title>
    <abstract language="eng">A new method for fabricating narrow linewidth antiphase complex coupled MQW DFB lasers by periodically etching the active layer and quartemary InGaAsP overgrowth is reported. The minimum linewidth for a 375 µm long ridge waveguide laser is only 250 kHz at an optical output power of 4 mW.</abstract>
    <parentTitle language="eng">Electronics Letters</parentTitle>
    <identifier type="doi">10.1049/el:19990132</identifier>
    <identifier type="issn">0013-5194</identifier>
    <enrichment key="opus.import.date">2023-04-13T12:39:51+00:00</enrichment>
    <enrichment key="opus.source">sword</enrichment>
    <enrichment key="opus.import.user">importuser</enrichment>
    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Rupert Schreiner</author>
    <author>J. Wiedmann</author>
    <author>W. Coenning</author>
    <author>J. Porsche</author>
    <author>Jean-Louis Gentner</author>
    <author>Manfred Berroth</author>
    <author>Ferdinand Scholz</author>
    <author>H. Schweizer</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>etching</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>optical fabrication</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>quantum well lasers</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>ridge waveguides</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>distributed feedback lasers</value>
    </subject>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othpublikationsherkunft" number="">Externe Publikationen</collection>
    <collection role="persons" number="schreinerlm">Schreiner, Rupert (Prof. Dr.), Zeitschriftenaufsätze - Labor für Mikrosensorik</collection>
    <collection role="othforschungsschwerpunkt" number="16317">Sensorik</collection>
    <collection role="institutes" number="">Labor Mikrosensorik</collection>
  </doc>
  <doc>
    <id>7972</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>17</pageNumber>
    <edition/>
    <issue>5</issue>
    <volume>25</volume>
    <type>article</type>
    <publisherName>MDPI</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Investigation of Influencing Factors on the Measurement Signal of a CMOS Image Sensor for Measuring Field Emission Currents</title>
    <parentTitle language="eng">Sensors</parentTitle>
    <identifier type="doi">10.3390/s25051529</identifier>
    <note>Corresponding author der OTH Regensburg: Matthias Hausladen</note>
    <enrichment key="opus.import.date">2025-03-17T20:19:32+00:00</enrichment>
    <enrichment key="opus.source">sword</enrichment>
    <enrichment key="opus.import.user">importuser</enrichment>
    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
    <enrichment key="CorrespondingAuthor">Matthias Hausladen</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Matthias Hausladen</author>
    <author>Andreas Schels</author>
    <author>Ali Asgharzade</author>
    <author>Philipp Buchner</author>
    <author>Mathias Bartl</author>
    <author>Dominik Wohlfartsstätter</author>
    <author>Simon Edler</author>
    <author>Michael Bachmann</author>
    <author>Rupert Schreiner</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="oaweg" number="">Gold Open Access- Erstveröffentlichung in einem/als Open-Access-Medium</collection>
    <collection role="persons" number="schreinerlm">Schreiner, Rupert (Prof. Dr.), Zeitschriftenaufsätze - Labor für Mikrosensorik</collection>
    <collection role="othforschungsschwerpunkt" number="16317">Sensorik</collection>
    <collection role="oaweg" number="">Corresponding author der OTH Regensburg</collection>
    <collection role="institutes" number="">Labor Mikrosensorik</collection>
    <collection role="DFGFachsystematik" number="1">Ingenieurwissenschaften</collection>
  </doc>
  <doc>
    <id>7927</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>381</volume>
    <type>article</type>
    <publisherName>Springer Nature</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Effect of temperature on the growth of Cupric and Cuprous Nanoparticles in a wet chemical synthesis</title>
    <abstract language="eng">Cuprous oxide (Cu2O) and cupric oxide (CuO) particles were synthesized using a wet chemical surfactant free method at different synthesis temperatures from 25 °C to 60 °C. Morphology, size, and chemical composition of the prepared Cu2O particles were analyzed by FESEM, PXRD, and UV-vis. We discovered that the chemical composition of the Cu2O particles remained unaffected by the synthesis temperature. However, morphology and size of the particles showed a strong temperature dependency. This could be attributed to the temperature induced formation of CuO species from the copper hydroxide (Cu(OH)2) precursor which also functions as copper precursor for the Cu2O particle growth. The cupric oxide species was determined to be the main cause for the formation of micrometer sized particles, whereas with the Cu(OH)2 precursor species for the Cu2O particles nanocubes with smaller edge lengths as well as octahedrons were obtained.</abstract>
    <parentTitle language="eng">Materials Letters</parentTitle>
    <identifier type="doi">10.1016/j.matlet.2024.137672</identifier>
    <identifier type="urn">urn:nbn:de:bvb:898-opus4-79279</identifier>
    <enrichment key="opus.import.date">2025-01-20T09:16:32+00:00</enrichment>
    <enrichment key="opus.source">sword</enrichment>
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    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
    <licence>Creative Commons - CC BY-NC - Namensnennung - Nicht kommerziell 4.0 International</licence>
    <author>Tobias Schwarz</author>
    <author>Angelina Pastötter</author>
    <author>T. H. Tran</author>
    <author>Marc Schlosser</author>
    <author>Corinna Kaulen</author>
    <author>Alfred Lechner</author>
    <author>A. Slabon</author>
    <author>Martin Kammler</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Crystal structure</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Crystal growth</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nanoparticle</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Copper oxide</value>
    </subject>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="16316">Produktion und Systeme</collection>
    <collection role="oaweg" number="">Hybrid Open Access - OA-Veröffentlichung in einer Subskriptionszeitschrift/-medium</collection>
    <collection role="oaweg" number="">Corresponding author der OTH Regensburg</collection>
    <collection role="funding" number="">DEAL Springer Nature</collection>
    <collection role="DFGFachsystematik" number="1">Ingenieurwissenschaften</collection>
    <thesisPublisher>Ostbayerische Technische Hochschule Regensburg</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-oth-regensburg/files/7927/Schwarz_Materials_Letters_2025.pdf</file>
  </doc>
  <doc>
    <id>1113</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>1-2</pageNumber>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName>IEEE</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2021-02-05</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Nano Emitters on Silicon Pillar Structures generated by a Focused Electron Beam Induced Deposition</title>
    <abstract language="eng">Nano emitters were deposited by focused electron beam induced deposition of Trimethyl-(methylcyclopentadienyl)platinum(IV) on top of silicon pillars. The nano emitters were exactly positioned in the center on the top of up to four pillars of a quadratic arranged array of sixteen pillars with a pitch of 50 μm. Integral field emission measurements were performed in a diode configuration with a 50 μm mica spacer in a vacuum chamber at pressures of about 10 -9 mbar. The Fowler-Nordheim plots show a linear behavior, like expected for an n-type silicon material and a metal needle. The I-V measurement of the most promising sample shows an integral emission current up to 2 μm at a voltage of 600 V (12 MV/m) and an onset voltage for a current of 1 nA of about 300 V.</abstract>
    <parentTitle language="eng">International Vacuum Nanoelectronics Conference (IVNC), 31st, 2018, Kyoto, Japan</parentTitle>
    <identifier type="doi">10.1109/IVNC.2018.8520059</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
    <author>Robert Damian Ławrowski</author>
    <author>Christoph Langer</author>
    <author>Rupert Schreiner</author>
    <author>Josef Sellmair</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>field emission</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>nano emitter</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>focused electron beam induced deposition</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>MeCpPtMe3</value>
    </subject>
    <collection role="ddc" number="621">Angewandte Physik</collection>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="persons" number="schreinerlmconf">Schreiner, Rupert (Prof. Dr.), Konferenzbeiträge - Labor für Mikrosensorik</collection>
    <collection role="othforschungsschwerpunkt" number="16316">Produktion und Systeme</collection>
    <collection role="institutes" number="">Labor Mikrosensorik</collection>
  </doc>
  <doc>
    <id>8566</id>
    <completedYear/>
    <publishedYear>2024</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst>46</pageFirst>
    <pageLast>53</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName>Hochschule für Angewandte Wissenschaften Landshut</publisherName>
    <publisherPlace>Landshut</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2025-11-03</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Elektronenquellen basierend auf Feldemission aus Silizium</title>
    <abstract language="deu">Der Beitrag gibt einen Überblick über zwei typische Bauformen für Elektronenquellen auf der Basis von Feldemission aus Silizium. Des Weiteren wird eine typische Trioden-Beschaltung solcher Elektronenquellen für hohe Elektronentransmission vorgestellt und dabei auf ihre Leistungsfähigkeit eingegangen.</abstract>
    <parentTitle language="deu">Tagungsband zum 4. Symposium Elektronik und Systemintegration ESI: 17. April 2024, Hochschule Landshut</parentTitle>
    <identifier type="isbn">978-3-9818439-9-6</identifier>
    <identifier type="doi">10.57688/421</identifier>
    <identifier type="urn">urn:nbn:de:bvb:860-opus4-4212</identifier>
    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Philipp Buchner</author>
    <author>Matthias Hausladen</author>
    <author>Mathias Bartl</author>
    <author>Rupert Schreiner</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="persons" number="schreinerlmconf">Schreiner, Rupert (Prof. Dr.), Konferenzbeiträge - Labor für Mikrosensorik</collection>
    <collection role="othforschungsschwerpunkt" number="16317">Sensorik</collection>
    <collection role="DFGFachsystematik" number="1">Ingenieurwissenschaften</collection>
  </doc>
  <doc>
    <id>8561</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst>24</pageFirst>
    <pageLast>27</pageLast>
    <pageNumber/>
    <edition/>
    <issue>4</issue>
    <volume>6</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Krisen, Katastrophen und Konflikte</title>
    <abstract language="deu">Hebammen als Akteurinnen im Bevölkerungsschutz In Deutschland folgt der Bevölkerungsschutz einer komplexen Struktur, die sich größtenteils auch auf das Rettungswesen stützt. Doch die wertvolle Ressource Hebammentätigkeit wurde dabei bisher nicht mitgedacht.</abstract>
    <parentTitle language="deu">Hebammen Wissen</parentTitle>
    <identifier type="doi">10.1007/s43877-025-1335-x</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">false</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Markus Bresinsky</author>
    <author>Barbara Fillenberg</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="DFGFachsystematik" number="2">Geistes- und Sozialwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="">Gesundheit und Soziales</collection>
  </doc>
  <doc>
    <id>8562</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>21</pageNumber>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName>CCOE</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2025-11-03</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Between association and dissociation : the legitimacy politics of CIMIC experimentation</title>
    <abstract language="eng">NATO’s Concept Development and Experimentation (CD&amp;E) works well for discrete technologies but is ill-suited to civil–military cooperation (CIMIC), where the ‘capability’ at stake is an interorganisational relationship. Drawing on regime-complex theory and organisational sociology, this paper argues that willingness to engage in joint CIMIC capability development hinges on legitimacy rather&#13;
than technical utility. A legitimacy-scale metaphor captures the trade-off: functional gains from collaboration load one side; identity risks, such as threats to neutrality, autonomy, or safety, load the other. Three ideal-type cases test the framework. In stabilisation missions, humanitarian neutrality is vital, the scale tips toward identity risk, and co-creation remains siloed. In sudden-onset disasters, shared life-saving objectives reduce identity costs, functional incentives dominate, and integrated trials flourish. Territorial- and collective-defence scenarios occupy the middle ground: acute threat perception opens selective, often low-profile windows for cooperation, yet unresolved legal and reputational questions still temper overt collaboration.&#13;
&#13;
The analysis yields five practical lessons. First, legitimacy must be treated as a primary design variable. Second, the optimal depth of cooperation is context specific. Third, legitimacy-sensitive ‘safe-to-fail’ spaces – wargames, living labs, tabletop exercises – lower entry barriers. Fourth, structured reflection on legitimacy exposes red lines early and refines future joint efforts. Fifth, incremental processes can build trust and gradually relax legitimacy constraints. Recognising legitimacy as both constraint and resource allows practitioners to design CIMIC co-creation – and eventual experimentation – that is technically sound, politically acceptable, and ethically sustainable.</abstract>
    <identifier type="url">https://www.cimic-coe.org/wp-content/uploads/2025/07/acaCIMICs_publication.pdf</identifier>
    <identifier type="urn">urn:nbn:de:bvb:898-opus4-85627</identifier>
    <identifier type="doi">10.35096/othr/pub-8562</identifier>
    <enrichment key="ConferenceStatement">acaCIMICs Conference, 14-15 May 2025, The Hague, Netherlands</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="opus.doi.autoCreate">true</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Markus Bresinsky</author>
    <author>Jule Brischar</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CIMIC</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>NATO</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Legitimacy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Co-creation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Experimentation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Dissociation</value>
    </subject>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="oaweg" number="">Green Open Access - Zweitveröffentlichung</collection>
    <collection role="DFGFachsystematik" number="2">Geistes- und Sozialwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="">Gesundheit und Soziales</collection>
    <thesisPublisher>Ostbayerische Technische Hochschule Regensburg</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-oth-regensburg/files/8562/Bresinsky_2025_acaCIMICs.pdf</file>
  </doc>
  <doc>
    <id>8520</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>49</pageNumber>
    <edition/>
    <issue/>
    <volume/>
    <type>bachelorthesis</type>
    <publisherName/>
    <publisherPlace>Regensburg</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Electronic circuit design and implementation of a contactless optical position measurement device</title>
    <abstract language="eng">This thesis presents the design and implementation of a low-cost, highprecision&#13;
analog front-end for a non-contact optical displacement measurement&#13;
system. While the principle of sensing based on D-shaped optical fibers&#13;
is well-established, its practical replication faces challenges of poor consistency&#13;
from manual polishing and high material costs. To address these&#13;
issues, we employ 3D-printed polymer waveguides as the core sensing&#13;
medium and design a dedicated signal conditioning circuit to accompany it.&#13;
The core work of this thesis revolves around a dual-channel, two-stage&#13;
amplifier analog front-end. The circuit converts weak, nanoampere-level&#13;
(nA) photocurrents from the photodiodes into voltage signals. These signals&#13;
are stable, linear, and suitable for the microcontroller (MCU) to process.&#13;
The entire design follows this workflow: starting from theoretical&#13;
calculations, the circuit’s performance in frequency domain, time domain,&#13;
and noise was verified through LTspice simulation. Subsequently, the design&#13;
was realized in hardware via PCB implementation, including guard&#13;
rings.&#13;
The experimental results show that the performance of the fabricated&#13;
circuit is consistent with simulation. When integrated with the 3D-printed&#13;
waveguide, the complete system performed end-to-end calibration and&#13;
decoding. Over a 50 mm measurement range, the system achieved a maximum&#13;
absolute error of less than 0.81 mm and a root mean square&#13;
error below 0.4 mm. This research validates the feasibility of a complete,&#13;
low-cost, non-contact displacement measurement solution—from the sensing&#13;
structure to the signal processing—suitable for small-scale use.</abstract>
    <identifier type="urn">urn:nbn:de:bvb:898-opus4-85201</identifier>
    <identifier type="doi">10.35096/othr/pub-8520</identifier>
    <enrichment key="opus.doi.autoCreate">true</enrichment>
    <enrichment key="opus.urn.autoCreate">true</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Zhiming Xu</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="">Materialien und Produktion</collection>
    <thesisPublisher>Ostbayerische Technische Hochschule Regensburg</thesisPublisher>
    <thesisGrantor>Ostbayerische Technische Hochschule Regensburg</thesisGrantor>
    <file>https://opus4.kobv.de/opus4-oth-regensburg/files/8520/BachelorThesis_ZhimingXu_Signed.pdf</file>
  </doc>
  <doc>
    <id>8505</id>
    <completedYear/>
    <publishedYear>2024</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>7</pageNumber>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName>IEEE</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Optimal distributed generation placement in radial distribution system using particle swarm optimization</title>
    <abstract language="eng">This paper addresses losses of power in Radial Distribution Systems (RDS), which significantly affect voltage levels and operational costs. The main aim is to optimize the positioning and size of Distributed Generation (DG) units, including Photovoltaic (PV) cells, and Wind Turbines (WT), to analyze the effect of DG placement in reducing the losses in power and enhancing the voltage profiles in radial distribution system (IEEE 33 bus system). This research employs Particle Swarm Optimization (PSO), a robust algorithm well-suited for tackling non-linear optimization issues in order to identify the appropriate placement and size for DG units. A number of scenarios with varying numbers of DG units are simulated, indicating significant reductions in active as well as reactive power losses. Likewise, the consistency and reliability requirements of modern distribution systems are improved as the voltage profile is improved. The key findings demonstrate that optimal DG integration enhances system efficiency, contributes to operational cost savings, and improves grid stability. PSO was chosen for its ability to effectively balance computational effort while achieving high accuracy in minimizing the losses associated with power and enhancing voltage profiles. In contrast to traditional optimization techniques, PSO offers superior accuracy and efficiency in addressing the challenges of non-linear optimization in RDS.</abstract>
    <parentTitle language="eng">2024 IEEE 9th International Conference on Engineering Technologies and Applied Sciences (ICETAS)</parentTitle>
    <identifier type="doi">10.1109/ICETAS62372.2024.11120307</identifier>
    <enrichment key="ConferenceStatement">20-22. November 2024, Bahrain</enrichment>
    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
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    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Muhammad Shahab</author>
    <author>Abdul Wahab Usman Ullah</author>
    <author>Muhammad Shehzad</author>
    <author>Syed Bilal Shah</author>
    <author>M. Kamran Joyo</author>
    <author>Sheroz Khan</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Radial Distribution System (RDS)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Distributed Generation (DG)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Particle Swarm Optimization (PSO)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Voltage Profile</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Power Losses</value>
    </subject>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="">Digitale Transformation</collection>
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  <doc>
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    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>98</pageFirst>
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    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>25</volume>
    <type>article</type>
    <publisherName>ICR Publications</publisherName>
    <publisherPlace/>
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    <title language="eng">Communication in International Humanitarian Relief: Profiling Ukrainian Boundary Spanners</title>
    <abstract language="eng">Boundary spanning—the actions and roles individuals or organizations undertake to bridge differences and facilitate communication, collaboration, and understanding across diverse cultural, organizational, or geographical divisions—is an essential element of international cooperation. Set against the backdrop of the Russia-Ukraine war, The purpose of this study is to explore the type of boundary spanning in this uncertain context, the linguistic characteristics of boundary spanners, the necessary skills and competencies required to navigate the complex socio-political landscape, and the role of boundary spanners in humanitarian assistance. This study employs a qualitative research approach, using semi-structured interviews with informants actively engaged in relief efforts and cross-cultural collaboration. The findings emphasized the significance of English as the primary language of communication, the importance of cultural sensitivity and awareness, and the need for intercultural competence in effective boundary spanning. The study concludes with insights from the ongoing Ukrainian experience of bridging geodemographic boundaries and the role of boundary spanners in this process, highlighting key aspects of boundary spanning. Overall, the study contributes to the theoretical background of boundary spanning and enhances the understanding of how linguistic and cultural boundary spanning can drive positive change and improve outcomes in humanitarian aid. The implications of this study suggest that underscore the critical need for collaboration with experienced boundary spanners in educational settings.</abstract>
    <parentTitle language="eng">Journal of Intercultural Communication</parentTitle>
    <identifier type="doi">10.36923/jicc.v25i1.1019</identifier>
    <identifier type="issn">1404-1634</identifier>
    <note>Corresponding author der Partnerhochschule aus Kiew: Yana Diachkova</note>
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    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Yana Diachkova</author>
    <author>Sofiya Nikolaeva</author>
    <author>Katherine Guertler</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
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    <collection role="funding" number="">Publikationsfonds der OTH Regensburg</collection>
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  </doc>
  <doc>
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    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>4</pageNumber>
    <edition/>
    <issue>10</issue>
    <volume>9</volume>
    <type>article</type>
    <publisherName>Institute of Electrical and Electronics Engineers (IEEE)</publisherName>
    <publisherPlace/>
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    <title language="eng">Active heat-loss compensated miniaturized pirani sensor chip</title>
    <abstract language="eng">Due to the limited measuring range of commercial Pirani sensors in lower pressure regimes, attempts are being made to extend the measuring range of the sensors. Our approach to extend the measuring range toward lower pressures is a micro-electromechanical systems (MEMS) Pirani sensor with active heat compensation on the suspensions. The sensor element has the shape of a microhotplate and consists of a nickel heating meander embedded in two silicon nitride layers. The whole structure is built on a silicon wafer. The sensor element is suspended on all four corners of the substrate. On each of the suspensions, there is an additional heating structure that minimizes the heat flux from the hot sensor element toward the substrate. The sensor is driven at a constant temperature through a self-balancing Wheatstone bridge. A constant voltage is applied to the heating structures on the suspensions. It has been demonstrated that with these additional heaters, the sensitivity of the sensor can be increased in the high-vacuum regime. This enables reliable vacuum measurements down to 10−6 mbar.</abstract>
    <parentTitle language="eng">IEEE Sensors Letters</parentTitle>
    <identifier type="issn">2475-1472</identifier>
    <identifier type="doi">10.1109/LSENS.2025.3605747</identifier>
    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
    <enrichment key="CorrespondingAuthor">Julian Eiler</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Julian Eiler</author>
    <author>Stefan Weber</author>
    <author>Peter Gerlesberger</author>
    <author>Heinz Plöchinger</author>
    <author>Rupert Schreiner</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Temperature measurement</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Heating systems</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Temperature sensors</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Sensitivity</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Pressure measurement</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Voltage measurement</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Heat sinks</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Semiconductor device measurement</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Noise measurement</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Bridge circuits</value>
    </subject>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="persons" number="schreinerlm">Schreiner, Rupert (Prof. Dr.), Zeitschriftenaufsätze - Labor für Mikrosensorik</collection>
    <collection role="DFGFachsystematik" number="1">Ingenieurwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="">Materialien und Produktion</collection>
  </doc>
  <doc>
    <id>8116</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
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    <type>conferencesummary</type>
    <publisherName>Deutsche Physikalische Gesellschaft e.V.</publisherName>
    <publisherPlace/>
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    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2025-05-28</completedDate>
    <publishedDate>2025-03-19</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Miniaturized Pirani vacuum sensor with active heat-loss compensation</title>
    <abstract language="eng">Pirani sensors measure the thermal conductivity of the residual gas in a vacuum by creating a thermal gradient between a heated sensor element and a heat sink. The heat flux from the sensor element to the heat sink over the residual gas is a measure of the vacuum and can be determined by the electrical power applied. In addition to the heat flux over the gas, there are further energy losses from the heating structure due to radiation and parasitic heat fluxes via the suspensions of the sensor element. These losses reduce the sensitivity of the sensor. For this reason, a Micro-Pirani sensor in the shape of a microhotplate was developed that actively compensates the heat flux via the suspensions. This was achieved by placing additional heating structures on the suspensions, which interrupt the heat flow from the sensor element via the suspensions during operation. This active compensation improves the sensitivity at low pressures, enabling vacuum measurements from atmospheric pressure down to 10e-6 mbar.</abstract>
    <parentTitle language="eng">Verhandlungen der Deutschen Physikalischen Gesellschaft e.V. (DPG), Regensburg, 16. - 21. März 2025</parentTitle>
    <identifier type="url">https://www.dpg-verhandlungen.de/year/2025/conference/regensburg/part/o/session/66/contribution/7</identifier>
    <identifier type="issn">2751-0522</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Julian Eiler</author>
    <author>Stefan Weber</author>
    <author>Peter Gerlesberger</author>
    <author>Heinz Plöchinger</author>
    <author>Rupert Schreiner</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
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  </doc>
  <doc>
    <id>8565</id>
    <completedYear/>
    <publishedYear>2024</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst>38</pageFirst>
    <pageLast>45</pageLast>
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    <edition/>
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    <publisherName>Hochschule für Angewandte Wissenschaften Landshut</publisherName>
    <publisherPlace>Landshut</publisherPlace>
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    <completedDate>2025-11-03</completedDate>
    <publishedDate>--</publishedDate>
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    <title language="deu">Miniaturisierter Wasserstoffsensor basierend auf der 3-Omega Methode</title>
    <abstract language="deu">Die Arbeit stellt einen thermischen Wasserstoffsensor auf Siliziumbasis vor, der mit der 3-Omega Messmethode betrieben wird. Durch das dynamische Messverfahren, die große Sensoroberfläche bei gleichzeitig geringer thermischer Masse und der Materialkombination wird eine Auflösungsgrenze von 55 ppm Wasserstoff in Stickstoff erreicht.</abstract>
    <parentTitle language="deu">Tagungsband zum 4. Symposium Elektronik und Systemintegration ESI: 17. April 2024, Hochschule Landshut</parentTitle>
    <identifier type="isbn">978-3-9818439-9-6</identifier>
    <identifier type="doi">10.57688/420</identifier>
    <identifier type="urn">urn:nbn:de:bvb:860-opus4-4205</identifier>
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    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Julian Eiler</author>
    <author>Dominik Berndt</author>
    <author>Rupert Schreiner</author>
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    <publishedYear>2025</publishedYear>
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    <title language="eng">Machine-learning-based detection and severity estimation of drought stress in plants using hyperspectral imaging data</title>
    <abstract language="eng">Growing food demand due to population growth, coupled with increasingly frequent and severe droughts caused by climate change make water increasingly scarce. To address this, accurate assessment of plant water demand is essential for precise drought treatment and water conservation. Hyperspectral imaging (HSI) captures hypercubes, a combination of spectral and spatial data and offers promising capabilities for detection of plant stresses. However, most reported approaches only use selected spectral bands or indices, neglecting the full hypercube information. This is assumed to limit the detection accuracy. To overcome these limitations, we aim to develop a measurement pipeline to generate a comprehensive dataset comprising hypercubes of plants under varying drought stress levels along with selected physiological, environmental, and illumination data. This dataset will be used to train suitable data-driven models that enable improved drought stress detection as well as the non-invasive determination of physiological parameters based on HSI data.</abstract>
    <parentTitle language="eng">Remote Sensing for Agriculture, Ecosystems, and Hydrology XXVII</parentTitle>
    <identifier type="doi">10.1117/12.3072011</identifier>
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    <title language="eng">Enhancing object recognition through camera-radar fusion and micro-doppler signature integration</title>
    <abstract language="eng">Object recognition systems based on visual sensors often struggle in degraded environmental conditions such as fog, rain, darkness, or occlusion. Radar, in contrast, offers robust detection capabilities under such conditions but lacks the spatial resolution of optical sensors. This paper presents an ongoing research effort towards a multimodal sensor fusion framework that integrates camera data with radar signals, specifically exploiting micro-Doppler (μD) signatures, with the aim of improving object recognition robustness. The proposed setup uses an Intel RealSense Depth Camera D455 and an Infineon BGT60TR13C radar sensor, deployed on a low-power embedded platform with STM32 microcontrollers. The signal processing pipeline, currently under development, combines time–frequency radar analysis with convolutional neural network-based visual feature extraction for real-time edge AI inference. We describe the system design, preliminary data acquisition setup, and planned evaluation strategy.</abstract>
    <parentTitle language="eng">Emerging Technologies and Materials for Security and Defence 2025</parentTitle>
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    <author>Matthias G. Ehrnsperger</author>
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    <id>8694</id>
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    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
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    <pageLast/>
    <pageNumber>5</pageNumber>
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    <title language="eng">Multimodal sensor fusion for resilient perception: combining radar and imaging for all-weather object tracking</title>
    <abstract language="eng">This work presents the concept and initial qualitative observations of a multimodal perception system that fuses radar, lidar, and camera data to improve object detection and tracking under adverse environmental conditions. The approach focuses on building weather-impact models for each sensor modality—quantifying performance degradation effects such as color shifts and contrast loss in cameras, range reduction and spurious returns in lidar, and resolution limitations in radar. These models will later inform adaptive sensor fusion strategies deployed on embedded edge-AI hardware, using an Infineon BGT60TR13C FMCW radar, Intel RealSense D455 depth camera, and low-power processors. Preliminary visual inspection of collected datasets indicates that combining complementary sensing modalities can maintain detection continuity under conditions where single modalities fail. Future work will quantitatively evaluate these effects and demonstrate weather-adaptive perception on the embedded platform.</abstract>
    <parentTitle language="eng">Artificial Intelligence and Image and Signal Processing for Remote Sensing XXXI</parentTitle>
    <identifier type="doi">10.1117/12.3071683</identifier>
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    <publishedYear>2024</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
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    <pageLast/>
    <pageNumber>6</pageNumber>
    <edition>Version 1 (Stand 08.04.2024)</edition>
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    <creatingCorporation>Fachkommission Forschung im Hochschulverbund Gesundheitsfachberufe (HVG) e.V.</creatingCorporation>
    <contributingCorporation>Hochschulverbund Gesundheitsfachberufe (HVG)</contributingCorporation>
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    <completedDate>2025-11-12</completedDate>
    <publishedDate>--</publishedDate>
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    <title language="deu">HVG-Positionspapier für die Therapiewissenschaften : Fachkommission Forschung im Hochschulverbunde Gesundheitsfachberufe (HVG)</title>
    <abstract language="deu">Zeitgemäße Therapie ist effektiv, effizient, patient*innen‐ und teilhabeorientiert. Ergotherapie, Logopädie/Sprachtherapie und Physiotherapie (im Folgenden kurz: ELP) sind gesellschaftlich relevant und essenzieller Bestandteil einer nachhaltigen Gesundheitsversorgung. Therapiewissenschaften evaluieren, verbessern und erweitern Möglichkeiten der Prävention und Behandlung von Krankheiten sowie der Beratung und Begleitung von Menschen in gesundheitlicher Hinsicht. Wer, wenn nicht die Therapeut*innen, stellt Forschungsfragen und verfolgt  Forschungsinteressen, durch die forschungsbasiertes Wissen zu Therapie entsteht?&#13;
Dieses Positionspapier der Fachkommission Forschung im HVG wurde entwickelt als Referenz zur Forschungslandschaft der ELP. Es ist als Argumentationshilfe gedacht, um die Voraussetzungen für die Therapiewissenschaften zu verbessern.</abstract>
    <identifier type="doi">10.5281/zenodo.14495900</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Andrea Pfingsten</author>
    <author>Maren Bredehorst</author>
    <author>Juliane Leinweber</author>
    <author>Robert Richter</author>
    <author>Barbara Vogel</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Allied Health</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Physiotherapie</value>
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    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Wissenschaft</value>
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  <doc>
    <id>8738</id>
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    <publishedYear>2023</publishedYear>
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    <language>eng</language>
    <pageFirst>1384</pageFirst>
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    <pageNumber/>
    <edition/>
    <issue>8</issue>
    <volume>75</volume>
    <type>article</type>
    <publisherName>Taylor &amp; Francis</publisherName>
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    <title language="eng">German and Russian Public Diplomacy Efforts in Kyrgyzstan: A&#13;
Comparative Study of Norm Entrepreneurship</title>
    <abstract language="eng">This article explores Russian and German public diplomacy efforts in Central Asia through the example of Kyrgyzstan. Due to a difficult economic and socio-political situation, Kyrgyzstan remains open to externally funded programmes and projects, including initiatives funded by foreign governments, and thus offers a unique environment for the study of public diplomacy. The article looks at transnational public diplomacy actors such as German political foundations and Russian-sponsored organisations active in the country. Overall, the article offers interesting insights into the nature and substance of the soft power policies pursued by Germany and Russia that are relevant for Kyrgyzstan and beyond.</abstract>
    <parentTitle language="eng">Europe-Asia Studies</parentTitle>
    <identifier type="doi">10.1080/09668136.2023.2213871</identifier>
    <identifier type="urn">urn:nbn:de:bvb:898-opus4-87380</identifier>
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    <licence>Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International</licence>
    <author>Chiara Pierobon</author>
    <author>Aijan Sharshenova</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othpublikationsherkunft" number="">Externe Publikationen</collection>
    <collection role="othforschungsschwerpunkt" number="">Nachhaltige Lebensräume</collection>
    <thesisPublisher>Ostbayerische Technische Hochschule Regensburg</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-oth-regensburg/files/8738/Pier_Shars_2023.pdf</file>
  </doc>
  <doc>
    <id>8737</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>752</pageFirst>
    <pageLast>769</pageLast>
    <pageNumber/>
    <edition/>
    <issue>4</issue>
    <volume>41</volume>
    <type>article</type>
    <publisherName>Taylor &amp; Francis</publisherName>
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    <completedDate>--</completedDate>
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    <title language="eng">European Union, civil society and local ownership in Kyrgyzstan: analysing&#13;
patterns of adaptation, reinterpretation and contestation in the prevention&#13;
of violent extremism (PVE)</title>
    <abstract language="eng">In the last decade, a growing body of literature has investigated the promotion of good governance, rule of law, democracy and human rights in Central Asia through funding from the European Union (EU). Most of this research has taken an EU-centric approach and is concerned with the supply side of external democratization. As a result, little is known about how EU projects are implemented on the ground and what EU-funded civil society organizations consider to be their priorities. This article investigates the agency of such organizations in Kyrgyzstan by focusing on their contribution to one particular EU instrument: the Instrument contributing to Stability and Peace (IcSP), and its programme: Strengthening Resilience to Violence and Extremism (STRIVE). The findings offer new insights into the processes of adaptation, reinterpretation and contestation through which EU-funded organizations exercise ownership while engaging in the prevention of violent extremism (PVE).</abstract>
    <parentTitle language="eng">Central Asian Survey</parentTitle>
    <identifier type="doi">10.1080/02634937.2021.1905608</identifier>
    <identifier type="urn">urn:nbn:de:bvb:898-opus4-87378</identifier>
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    <licence>Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International</licence>
    <author>Chiara Pierobon</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othpublikationsherkunft" number="">Externe Publikationen</collection>
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    <thesisPublisher>Ostbayerische Technische Hochschule Regensburg</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-oth-regensburg/files/8737/Pierobon_C_2021.pdf</file>
  </doc>
  <doc>
    <id>8739</id>
    <completedYear/>
    <publishedYear>2019</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>207</pageFirst>
    <pageLast>223</pageLast>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>25</volume>
    <type>article</type>
    <publisherName>Sage</publisherName>
    <publisherPlace/>
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    <contributingCorporation/>
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    <title language="eng">EU’s support to civil society in Kazakhstan: A pilot evaluation of the social&#13;
capital generated</title>
    <abstract language="eng">In the last decade, several studies have been devoted to the analysis of the EU’s support to civil society abroad, but only recently has scholarly attention turned to Central Asia. Most of the research in this field has adopted a macro-level perspective, concerned with the supply side of external democratization, and has examined external assistance to civil society in terms of democratization ideal types and typologies. The main contribution of this study consists of a meso-level analysis of the outcomes of the EU’s support to civil society in terms of production of social capital, conceived as the raw material of civil society itself. More precisely, the article evaluates the first wave of grants awarded to civil society organizations in Kazakhstan as part of two EU funding schemes—the European Instrument for Democracy and Human Rights and the Non-State Actors and Local Authorities in Development. The article sheds new light on the use of social capital and its two dimensions-structural and cognitive-as heuristic tools for evaluating civil society support programs.</abstract>
    <parentTitle language="eng">Evaluation</parentTitle>
    <identifier type="doi">10.1177/1356389018796023</identifier>
    <identifier type="urn">urn:nbn:de:bvb:898-opus4-87394</identifier>
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    <licence>Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International</licence>
    <author>Chiara Pierobon</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othpublikationsherkunft" number="">Externe Publikationen</collection>
    <collection role="othforschungsschwerpunkt" number="">Gesundheit und Soziales</collection>
    <thesisPublisher>Ostbayerische Technische Hochschule Regensburg</thesisPublisher>
    <file>https://opus4.kobv.de/opus4-oth-regensburg/files/8739/Pierobon_C_2019.pdf</file>
  </doc>
  <doc>
    <id>8328</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst>45</pageFirst>
    <pageLast>58</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>book</type>
    <publisherName>wbv Publikation</publisherName>
    <publisherPlace>Bielefeld</publisherPlace>
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    <completedDate>--</completedDate>
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    <title language="deu">Ethische Fragen der Digitalisierung und ihre Thematisierung in Forschung und Lehre an Hochschulen</title>
    <abstract language="deu">Die Digitalisierung als fortschreitende Durchdringung aller Lebensbereiche durch Informationstechnik geht mit gesellschaftlichen Transformationsprozessen und weitreichenden ethischen Fragen einher. Diese Fragen haben einen transdisziplinären Charakter in dem Sinne, dass sie sich nur durch ein Überschreiten von fachlichen Perspektiven einzelner wissenschaftlicher Disziplinen und durch eine ganzheitliche Bezugnahme auf gesellschaftliche Auswirkungen angemessen adressieren lassen. Anhand der technischen Möglichkeiten von Big Data Analytics lässt sich aufzeigen, wie disziplinübergreifende wissenschaftliche Forschungen zu technischen Anwendungen führen können, die gewichtige, gesellschaftlich relevante Fragen nach ihrer ethischen Vertretbarkeit aufwerfen. Diese können in letzter Konsequenz auch ethische Grundprinzipien und Auffassungen des Menschseins ins Wanken bringen. Besonders prägnant lässt sich dies mit den Studien des Big-Data-Forschers Michal Kosinski und seines Forscherkreises sowie den daraus resultierenden Anwendungen von Unternehmen wie Cambridge Analytica vor Augen führen: Die Analyse von großen Mengen digitaler persönlicher Daten eröffnet umfassende Möglichkeiten zur Verhaltensbeeinflussung und stellt dabei sehr weitreichend auch ethische Grundwerte wie Privatheit in Frage. Universitäten und Hochschulen sind aufgefordert, durch transdisziplinäre Lehre und Forschung die ethischen Fragen der Digitalisierung als bestimmende Themen der Gegenwart direkt zu adressieren.</abstract>
    <parentTitle language="deu">Interdisziplinarität in der Hochschullehre</parentTitle>
    <subTitle language="deu">Dimensionen von Transdisziplinarität</subTitle>
    <identifier type="isbn">9783763974610</identifier>
    <identifier type="doi">10.3278/9783763974610</identifier>
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    <licence>Creative Commons - CC BY-SA - Namensnennung - Weitergabe unter gleichen Bedingungen 4.0 International</licence>
    <author>Thomas Kriza</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="16314">Lebenswissenschaften und Ethik</collection>
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  <doc>
    <id>8780</id>
    <completedYear/>
    <publishedYear>2026</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>iv, 65</pageNumber>
    <edition/>
    <issue/>
    <volume/>
    <type>masterthesis</type>
    <publisherName/>
    <publisherPlace>Regensburg</publisherPlace>
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    <thesisDateAccepted>2025-09-30</thesisDateAccepted>
    <title language="eng">Design, simulation, fabrication, measurement, and analysis of 3D-printed radio frequency conductive structures</title>
    <abstract language="eng">Additive manufacturing has emerged as a disruptive technology in the field of electronics, offering new possibilities for the fabrication of complex, lightweight, and customizable components. Conventional PCB manufacturing relies on multi-step processes and is limited to planar geometries, making it less suitable for rapid prototyping or integration into non-standard surfaces. In contrast, Fused Deposition Modelling (FDM) provides a cost-effective and&#13;
accessible approach to directly fabricate functional electronic structures by combining conductive and dielectric materials within a single printing process.&#13;
This thesis examines the design, simulation, fabrication, measurement and analysis of 3D-printed conductive transmission lines utilising FDM technology. A conductive filament and a dielectric filament are employed to realise fully integrated microstrip and coaxial structures. Electromagnetic simulations are performed to optimise the geometry for RF performance, and the printed prototypes are experimentally characterised using vector network analyser measurements. The analysis focuses on the transmission coefficients and the reflection coefficients, providing insights into impedance matching, insertion loss, and frequency-dependent behaviour.&#13;
These findings confirm that FDM-based additive manufacturing can produce functional RF structures with reliable performance, despite material and fabrication limitations. The work demonstrates the potential of 3D printing as a flexible and low-cost method for prototyping radio frequency components, highlighting future directions that include improved material characterisation, connector integration, and the design of more advanced components, such as&#13;
filters and antennas.</abstract>
    <identifier type="urn">urn:nbn:de:bvb:898-opus4-87809</identifier>
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    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Rachana Vokkethur</author>
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    <collection role="DFGFachsystematik" number="1">Ingenieurwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="">Materialien und Produktion</collection>
    <thesisPublisher>Ostbayerische Technische Hochschule Regensburg</thesisPublisher>
    <thesisGrantor>Ostbayerische Technische Hochschule Regensburg</thesisGrantor>
    <file>https://opus4.kobv.de/opus4-oth-regensburg/files/8780/Master_Thesis_Conductive_Structures.pdf</file>
  </doc>
  <doc>
    <id>8805</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>325</pageFirst>
    <pageLast>326</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferencepresentation</type>
    <publisherName>AMA</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
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    <title language="eng">MP61 - Detection of Electron Beam in Atmospheric Pressure Using CMOS Image Sensor</title>
    <abstract language="eng">In the article, a new detection system that enables observation of the electron beam signal passing through a gas layer at atmospheric pressure is presented. An experimental setup consisting of an elec-tron gun (electron emitter, extraction, and focus electrodes), silicon nitride membrane, and a CMOS image sensor is described, as well as first image of the electron beam spot after passing through 400 µm of air at atmospheric pressure is presented.</abstract>
    <parentTitle language="eng">EUROSENSORS XXXVII ; 07.09.2025 - 10.09.2025 ; Wroclaw ; Poster I</parentTitle>
    <identifier type="doi">10.5162/EUROSENSORS2025/MP61</identifier>
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    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Michal Krysztof</author>
    <author>Kamil Baranowski</author>
    <author>Michal Zychla</author>
    <author>Matthias Hausladen</author>
    <author>Rupert Schreiner</author>
    <author>Aleksandr Knápek</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="DFGFachsystematik" number="1">Ingenieurwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="">Materialien und Produktion</collection>
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  <doc>
    <id>8791</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>6</pageNumber>
    <edition/>
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    <type>conferenceobject</type>
    <publisherName>IEEE</publisherName>
    <publisherPlace/>
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    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
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    <title language="eng">A Novel CWT-CNN Framework for Driver Fatigue Detection from EEG Signals</title>
    <abstract language="eng">Fatigued driving has been a significant contributor to traffic accidents globally, posing serious threats to both human life and economic stability. Machine learning techniques based on electroencephalography (EEG) are showing promise for detecting driver fatigue, excelling other physiological modalities in this regard. However, it requires a lot of exertion, demands domain knowledge, and may not generalize effectively across different datasets to manually extract features from EEG signals. Therefore, investigating innovative deep-learning architectures that can effectively extract discriminative characteristics from unprocessed EEG data is necessary. This paper proposes a novel framework for driver fatigue detection from EEG signals using Continuous Wavelet Transform (CWT) and Convolutional Neural Networks (CNN). Rather than depending on hand-crafted feature extraction, we use CWT to convert EEG data into time-frequency spectrum pictures. After concatenating these spectral images from every channel, a CNN is fed to learn discriminative features for driver normal and fatigued states automatically. An average classification accuracy of 98.3% is obtained by evaluating the proposed CWT-CNN system on a publicly available EEG dataset comprising recordings from twelve subjects. The results obtained indicate that the CWT-CNN framework has enormous potential to create strong driver fatigue detection systems, thereby enhancing road safety.</abstract>
    <parentTitle language="deu">2025 Multimedia University Engineering Conference (MECON), 21-23 July 2025, Cyberjaya, Malaysia</parentTitle>
    <identifier type="isbn">979-8-3315-5549-8</identifier>
    <identifier type="doi">10.1109/MECON67253.2025.11277149</identifier>
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    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Md. Golam Sadeque</author>
    <author>Tanvir Ahmmed</author>
    <author>Md. Aowal Hossain</author>
    <author>Md. Naimur Rahman</author>
    <author>Md Tanjil Sarker</author>
    <author>Gobbi Ramasamy</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CNN</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CWT</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Deep Learning (DL)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Driver Fatigue</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>EEG</value>
    </subject>
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    <collection role="othforschungsschwerpunkt" number="">Digitale Transformation</collection>
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    <title language="eng">Real-time hardware-based processing of high-precision detector signals for surface plasmon resonance spectroscopy</title>
    <abstract language="eng">Surface plasmon resonance (SPR) is limited by small-signal detectability and drift when subtraction occurs in software after digitization. We introduce an SPR detector that performs on-detector amplification and analog differential readout, eliminating moving parts and software-heavy correction. The hardware-native subtraction boosts the usable ADC range and suppresses illumination and environmental noise. In fixed-angle refractive-index steps (NaCl), the platform resolves Δn_min ≈ 1.8 × 10⁻⁷ RIU compared to 4.6–7.2 × 10⁻⁶ RIU on a commercial comparator and improves small-signal SNR by up to ∼5,000-fold, while remaining competitive at high signal levels. In a model IgG–BSA assay, the detector’s low noise floor clarifies early binding and equilibrium transitions. By generating inherently clean raw signals, this hardware-native approach dramatically enhances sensitivity and long-term stability for label-free biosensing and inline process analytics while rendering AI-based or complex post-processing entirely unnecessary. The concept generalizes across platforms and opens a compact route to robust, high-fidelity SPR in complex environments, with a clear path toward multi-wavelength and arrayed detectors for high-throughput chemical monitoring.</abstract>
    <identifier type="doi">10.2139/ssrn.5971170</identifier>
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    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Johannes Fischer</author>
    <author>Thomas Hirsch</author>
    <author>Torsten Reitmeier</author>
    <author>Rudolf Bierl</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Drift-free SPR</value>
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    <subject>
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      <value>Hardware-native sensing</value>
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      <value>Noise suppression</value>
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    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>On-detector amplification</value>
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    <subject>
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      <type>uncontrolled</type>
      <value>Small-signal detection</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Surface plasmon resonance</value>
    </subject>
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    <collection role="institutes" number="FAKMB">Fakultät Maschinenbau</collection>
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    <title language="eng">Experimental method for investigation of the emission pattern characteristics of individual field emission tips using a CMOS image sensor</title>
    <abstract language="eng">The emission pattern characteristics of individual silicon field emission tips were investigated using a CMOS image sensor. The quality of the image was improved by spatial and temporal averaging, so that individual emission centers could be identified and their temporal changes investigated. By mapping the emission current onto the image, the distribution of the current density on the image sensor could be calculated.</abstract>
    <parentTitle language="eng">38th International Vacuum Nanoelectronics Conference (IVNC)</parentTitle>
    <identifier type="doi">10.1109/IVNC65669.2025.11121040</identifier>
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    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Mathias Bartl</author>
    <author>Matthias Hausladen</author>
    <author>Ali Asgharzade</author>
    <author>Philipp Buchner</author>
    <author>Michal Krysztof</author>
    <author>Alexandr Knápek</author>
    <author>Michael Bachmann</author>
    <author>Rupert Schreiner</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CMOS image sensors</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Silicon</value>
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    <subject>
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      <value>Current density</value>
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      <type>uncontrolled</type>
      <value>Nanoelectronics</value>
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    <title language="eng">Edge-efficient convolutional neural network for real-time doppler radar gesture recognition</title>
    <abstract language="eng">Embedded gesture recognition using radar sensors enables intuitive and robust human-machine interfaces, which is appealing for automotive applications such as trunk opening via foot gesture. Designing a radar-based classifier that runs ondevice (edge) under strict resource constraints poses several challenges. The system must achieve real-time inference (e.g. under 200 ms) on a microcontroller unit (MCU), while maintaining high accuracy, and minimize false detections. This paper focuses on a binary classification task, while distinguishing a valid trunkopening “kick” gesture from other motions. Firstly, we evaluate classical machine learning (cML) models (Random Forests or support vector machines (SVMs)) for baseline performance, however they face difficulties with higher false positive rates and do not meet real time criteria. We then employ Convolutional Neural Networks (CNNs) and apply neural architecture search (NAS) to discover a compact CNN tailored for a 60 GHz Doppler radar dataset of 50 subjects, each with 10 leg gestures. By constraining network depth, filter sizes, and hyperparameters, NAS yields a small but accurate “edge” CNN that fits within the limited memory of a STM32 Nucleo F446RE microcontroller. The final model achieves 95.1 % accuracy on the binary classification task with 96.6 % precision and 2.17 % false positive rate (FPR), and requires only 167.5 ms to run inference on the MCU.</abstract>
    <parentTitle language="eng">2025 IEEE Radar Conference (RadarConf25), 4.-9. Oktober 2025, Krakow</parentTitle>
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    <title language="eng">Experimenal method for studying electron beams in gaseous environments using a CMOS image sensor</title>
    <abstract language="deu">Detecting and analyzing electron beams in atmospheric conditions remains a significant challenge due to scattering and absorption of electrons by gas molecules. In this work, a novel approach using a CMOS image sensor for real-time electron beam detection after its transmission through air is presented. The setup enables visualization of beam divergence, emission profiles, and dynamic behavior under atmospheric pressure. Presented results demonstrate the potential of CMOS image sensor for electron beam analysis in gaseous environment.</abstract>
    <parentTitle language="eng">38th International Vacuum Nanoelectronics Conference (IVNC)</parentTitle>
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    <title language="eng">Testing the performance of tungsten-graphite cathodes as MEMS Electron microscope electron source</title>
    <abstract language="eng">This work presents preliminary results of the performance testing of exfoliated graphene layers deposited on the nanotip of a tungsten field emission cathode. The obtained tungsten-graphite cathodes were then operated in a 3D-printed MEMS electron microscope testing model for later applications. The results were promising, where a maximum emission current of 50.2 μA was obtained with an extraction voltage of 1 kV and anode voltage of 3 kV.</abstract>
    <parentTitle language="eng">38th International Vacuum Nanoelectronics Conference (IVNC)</parentTitle>
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    <author>Mohammad M. Allaham</author>
    <author>Daniel Burda</author>
    <author>Alexandr Knápek</author>
    <author>Michał Krysztof</author>
    <author>Kamil Baranowski</author>
    <author>Matthias Hausladen</author>
    <author>Rupert Schreiner</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="persons" number="schreinerlmconf">Schreiner, Rupert (Prof. Dr.), Konferenzbeiträge - Labor für Mikrosensorik</collection>
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    <title language="eng">Structural and functional evolution of HKUST-1 nanoparticles induced by ball milling</title>
    <abstract language="eng">In this study, the effect of post-synthetic ball milling on the structural and functional properties of as-synthesized nanoparticles of the copper-based metal-organic framework (MOF) HKUST-1 was investigated for the first time. Nanoparticles were synthesized using sodium formate as a capping agent. The crystalline particles were subjected to a controlled ball milling process, which induced significant structural changes. Powder X-ray diffraction (PXRD) revealed a reduction in crystallite size from 91 nm to 21 nm and the introduction of microstrain, partially disrupting the MOF's long-range crystalline order, as evidenced by peak broadening and the diminished intensity of high-angle reflections. Particle morphology pre- and post-milling was further studied with scanning electron microscopy (SEM) imaging, verifying a narrow particle size distribution of ± 22 nm after milling. Fourier-transform infrared spectroscopy (FTIR) indicated protonation of carboxylate groups in the larger pores of the framework, likely due to moisture incorporation during milling. Brunauer-Emmett-Teller (BET) surface area analysis showed a substantial decrease in specific surface area from 521 m²/g to 226 m²/g, suggesting a partial collapse of the porous framework. We discuss the applicability of ball milling as a versatile means of post-synthetic approach to reduce MOF particle sizes, a key element in the preparation of MOF-based thin films using inks or polymers.</abstract>
    <parentTitle language="eng">Next Materials</parentTitle>
    <identifier type="doi">10.1016/j.nxmate.2025.101544</identifier>
    <note>Corresponding author der OTH Regensburg: Alex Wolfgramm</note>
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    <enrichment key="CorrespondingAuthor">Alex Wolfgramm</enrichment>
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    <licence>Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International</licence>
    <author>Alex Wolfgramm</author>
    <author>Valerius Abb</author>
    <author>Artur Samp</author>
    <author>Rafal Samp</author>
    <author>Jens Christoph Hoffmann</author>
    <author>Rainer Müller</author>
    <author>Martin Kammler</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Ball milling</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Copper-based metal-organic framework</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>HKUST-1</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nitrogen adsorption</value>
    </subject>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
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    <title language="eng">Investigation on the influence of internal voltage drops on the emission behavior of silicon field emission arrays using CMOS image sensor</title>
    <abstract language="eng">In this paper we report on an improved measurement and analysis method for determining the emission current distribution of field emitter arrays with CMOS sensors. It can also be used for field emission arrays where not all surfaces of the emitters are at the same electrical potential (e.g. for p-doped Si tips, where a strong current saturation occurs). To demonstrate the functionality of this method, a n-doped field emission array was measured using a variable external series resistance. Brightness variations in emission spots were analyzed to re-calculate the known series resistances for comparison. The re-calculated value is in good agreement with the actual value of the resistance. This method offers a quantitative approach to assess internal voltage drop effects on field emission using optical readout</abstract>
    <parentTitle language="eng">38th International Vacuum Nanoelectronics Conference (IVNC)</parentTitle>
    <identifier type="doi">10.1109/IVNC65669.2025.11120937</identifier>
    <enrichment key="ConferenceStatement">08-11 July 2025, Reykjavik, Iceland</enrichment>
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    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Ali Asgharzade</author>
    <author>Mathias Bartl</author>
    <author>Matthias Hausladen</author>
    <author>Yang Chen</author>
    <author>Philipp Buchner</author>
    <author>Simon Edler</author>
    <author>Michael Bachmann</author>
    <author>Juncong She</author>
    <author>Rupert Schreiner</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>field emission imaging</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>field emission</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>CMOS sensor</value>
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    <completedYear/>
    <publishedYear>2024</publishedYear>
    <thesisYearAccepted>2023</thesisYearAccepted>
    <language>deu</language>
    <pageFirst/>
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    <pageNumber>XI, 155</pageNumber>
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    <completedDate>2023-11-23</completedDate>
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    <thesisDateAccepted>2023-11-23</thesisDateAccepted>
    <title language="deu">Miniaturisierte dielektrische Barrierenentladungen und ihre Anwendung für das Anti- bzw. De-Icing von aerodynamischen Oberflächen</title>
    <abstract language="deu">Das grundlegende physikalische Verständnis und die kontinuierliche Weiterentwicklung von dielektrischen Oberflächenbarrierenentladungen (SDBDs) sowie der damit erbundenen elektrischen Diagnostik, sind für eine Vielzahl von Niedertemperaturplasmaanwendungen von entscheidender Bedeutung. In Bezug auf die Anwendung dieser Plasmatechnologie in der Luftfahrt liegt neben der bereits umfassend erforschten aktiven Strömungskontrolle zunehmend der Schwerpunkt auf der Vermeidung von Eisablagerungen auf aerodynamischen Komponenten. Die Bildung von Eis auf Oberflächen wie zum Beispiel den Tragflächen kann unter extremen Wetterbedingungen erhebliche Leistungsdefizite hervorrufen und zu ernsthaften Sicherheitsrisiken führen. In Anbetracht der signifikanten Vorteile gegenüber traditionellen Enteisungsmethoden steht die Erforschung von SDBDs im Mittelpunkt des anwendungsorientierten Abschnitts dieser Arbeit. Vorliegende Arbeit untergliedert sich in einen grundlegenden und einen anwendungsbezogenen Teil. Darin werden sowohl die physikalischen Eigenschaften und Prozesse von SDBDs analysiert als auch ihre potenziellen Anwendungen in Bezug auf Flugsicherheit und Effizienz untersucht. Die wissenschaftliche Forschung hat in der Vergangenheit erhebliche Anstrengungen unternommen, um ein umfassendes Verständnis der physikalischen Vorgänge, die im Zusammenhang mit SDBDs stehen, zu erarbeiten. Insbesondere die präzise Bestimmung der räumlichen Ausdehnung der Entladung entlang der dielektrischen Oberfläche - die üblicherweise in direkter Proportionalität zur Amplitude der angelegten Spannung steht - ist hierbei eine herausfordernde Aufgabe. Diese umfangreichen Studien sind essenziell, um die Entladungseigenschaften und die grundlegenden physikalischen Prozesse zu verstehen, was erhebliche Anwendungspotenziale eröffnet. Parallel zu diesen grundlegenden Studien hat sich auch der praktische Einsatz von SDBDs zur Verhinderung der Eisbildung auf aerodynamischen Bauteilen bedeutend weiterentwickelt. Untersuchungen legen nahe, dass Lösungen auf Basis von SDBDs im Vergleich zu konventionellen Enteisungsmethoden, wie beispielsweise chemischen Enteisungsmitteln oder thermischen Systemen, ein höheres Effizienz- und Wirkungspotential besitzen könnten. Allerdings wurden bisherige Entwicklungen von SDBDs hauptsächlich auf Basis der Leiterplattentechnologie realisiert, was bestimmte Begrenzungen in Bezug auf ihre Anwendbarkeit für Anti-Icing- Technologie mit sich bringt. Im ersten Teil dieser Arbeit wurde die sequentielle Ausbreitung der SDBD-Entladung entlang der dielektrischen Al2O3-Oberfläche systematisch analysiert. Die durchgeführten experimentellen Untersuchungen zeigten, dass die Entladungen unmittelbar nach dem Erreichen der Zündspannung einen fest definierten Bereich belegen, der bis zum Erreichen einer kritischen Spannungsamplitude VL stabil bleibt. Anzumerken ist auch, dass das Ausbleiben der Plasmaausbreitung innerhalb dieses Spannungsbereichs zu einer linearen Korrelation zwischen der Entladungsleistung und der angelegten Spannungsamplitude führt. Diese tiefergehenden Einblicke in die Dynamik der Entladung können dazu beitragen, den Einsatz von SDBDs in diversen Anwendungsbereichen effizienter zu gestalten. Im zweiten Teil der Arbeit steht die Entwicklung und Implementierung eines innovativen Ansatzes zur Realisierung von SDBDs im Vordergrund, der auf der Nutzung von Dünnschichtsubstra-Vten und mikroelektromechanischen Systemen (MEMS) basiert. Die Verwendung dieser Technologie erlaubt einen präziseren Design- und Fertigungsprozess von Elektrodenstrukturen, was sich positiv auf die Effizienz der Enteisung auswirken kann. Zur Beurteilung des Anti-Icing-Potenzials der entwickelten MEMS-SDBDs wurde ein direkter Vergleich mit konventionellen PCB-SDBDs durchgeführt. Die Ergebnisse legen nahe, dass die 35 μm dicken Elektroden der PCB-SDBDs eine Oberflächenvereisung fördern, die vorrangig durch die Elektrodenkanten induziert wird. Im Gegensatz dazu wurde dieser Effekt bei den deutlich dünneren, lediglich 0.3 μm dicken, mittels MEMS gefertigten Elektroden nicht festgestellt. Diese Beobachtungen deuten darauf hin, dass SDBDs, die mit MEMS-Technologien gefertigt wurden, einen signifikanten Vorteil in Anti-Icing-Anwendungen aufweisen könnten und stellen somit einen wesentlichen Fortschritt in der Forschung und Anwendung von SDBDs dar. Die in dieser Arbeit vorgelegten Forschungsergebnisse und innovativen Methoden liefern zahlreiche neue Erkenntnisse, die das Potential besitzen, sowohl das Verständnis als auch die Anwendung von SDBDs wesentlich zu erweitern. So bestätigen die Langzeitbelichtungsaufnahmen das neu entdeckte Phänomen einer sequenziellen Ausbreitung des Entladungsplasmas, das bei SDBDs mit dickeren Dielektrika stärker ausgeprägt ist. Eine neu entwickelte Methodik ermöglicht die Anwendung der Ladungs-Spannungs-Charakteristik von SDBDs, um essenzielle Parameter für ein vereinfachtes Ersatzschaltbild abzuleiten. Darüber hinaus wurde eine bemerkenswerte numerische Übereinstimmung zwischen der Ladungs-Spannungs-Charakteristik für den positiven Halbzyklus der Entladung und der aus den optischen Aufnahmen abgeleiteten spannungsabhängigen Reaktorkapazität festgestellt. Diese Erkenntnisse öffnen neueWege für die Optimierung und Anwendung von SDBDs in verschiedenen technischen Bereichen. Weiterhin identifizierte die durchgeführte Erosionsstudie Titan als optimal geeignetes Material für MEMS-Elektroden aufgrund seiner hohen Korrosionsbeständigkeit und ausgezeichneten elektrischen Leitfähigkeit. Es wurden auch Potentiale zur Optimierung von MEMS-SDBDs durch die Auswahl geeigneter dielektrischer Materialien und geeigneter SDBD-Geometrien aufgezeigt. Eine solche Optimierung könnte die Enteisungseffizienz weiter verbessern, indem beispielsweise die dielektrischen Eigenschaften an die spezifischen Anwendungsanforderungen angepasst werden. Innovative Designkonzepte, wie eine gezielte Anordnung der Elektroden oder die Integration von Sensoren zur Überwachung des Enteisungsprozesses, könnten ebenfalls zur Leistungsfähigkeit und Zuverlässigkeit von MEMS-SDBDs beitragen.&#13;
Ein weiterer bedeutender Aspekt ist die Anwendung von Piezotransformatoren zur Generierung der benötigten Hochspannung für SDBD-Systeme. Dieser innovative Ansatz könnte die Effizienz des auf SDBD-Technologie basierenden Enteisungsverfahrens optimieren und somit zur Verbesserung der Leistungsfähigkeit und Sicherheit von Flugzeugen unter extremen Wetterbedingungen beitragen. Das Forschungsfeld bietet viel Raum für zukünftige Studien, was die Bedeutung und Zukunftsrelevanz der in dieser Arbeit gewonnenen Ergebnisse hervorhebt.</abstract>
    <abstract language="eng">The fundamental physical understanding and continuous development of Surface Dielectric Barrier Discharges (SDBDs) and associated electrical diagnostics are of crucial importance for a wide range of low-temperature plasma applications. Regarding the application of this plasma technology in aviation, the focus is increasingly on the prevention of ice accumulation on aerodynamic components, in addition to the already extensively researched active flow control. The formation of ice on surfaces such as the wings can cause significant performance deficits under extreme weather conditions and lead to serious safety risks. Considering the significant advantages over traditional de-icing methods, the investigation of SDBDs is at the forefront of the application-oriented section of this work. This work is divided into a fundamental and an application-oriented part. Both the physical properties and processes of SDBDs are analyzed and their potential applications in terms of flight safety and efficiency are examined. Past scientific research has made considerable efforts to develop a comprehensive understanding of the physical processes associated with SDBDs. The precise determination of the spatial extension of the discharge along the dielectric surface - which is typically in direct proportion to the amplitude of the applied voltage - is a challenging task. These extensive studies are essential to understand the discharge characteristics and the fundamental physical processes, revealing significant application potential. In parallel to these fundamental studies, the practical use of SDBDs for preventing ice formation on aerodynamic components has also made significant progress. Research suggests that solutions based on SDBDs could have higher efficiency and effect potential compared to conventional de-icing methods such as chemical de-icing agents or thermal systems. However, past developments of SDBDs have been mainly based on printed circuit board technology, which brings certain limitations in terms of their applicability for anti-icing technology. In the first part of this work, the sequential propagation of the SDBD discharge along the dielectric Al2O3 surface was systematically analyzed. The experimental investigations carried out showed that the discharges occupy a fixed area immediately after reaching the ignition voltage, which remains stable until a critical voltage amplitude VL is reached. It should also be noted that the absence of plasma expansion within this voltage range leads to a linear correlation between the discharge power and the applied voltage amplitude. These deeper insights into the dynamics of the discharge can contribute to making the use of SDBDs more efficient in various application areas. In the second part of the work, the development and implementation of an innovative approach to realize SDBDs is in the foreground, based on the use of thin-film substrates and Microelectromechanical Systems (MEMS). Using this technology allows for a more precise design and manufacturing process of electrode structures, which can positively affect the efficiency of deicing. To assess the anti-icing potential of the developed MEMS-SDBDs, a direct comparison with conventional PCB-SDBDs was conducted. The results suggest that the 35 μm thick electrodes of the PCB-SDBDs promote surface icing, primarily induced by the electrode edges.&#13;
In contrast, this effect was not observed with the much thinner, only 0.3 μm thick, electrodes produced using MEMS. These observations suggest that SDBDs manufactured using MEMS technologies could have a significant advantage in anti-icing applications and thus represent a significant advance in the research and application of SDBDs.&#13;
The research results and innovative methods presented in this work provide numerous new insights that have the potential to significantly expand both the understanding and application of SDBDs. Long-exposure photographs confirm the newly discovered phenomenon of a stepwise expansion of the discharge plasma, which is more pronounced for SDBDs with thicker dielectrics. A new methodological approach – the bow tie plot - allows the utilization of the charge-voltage relationship in SDBDs to derive crucial parameters from the simplest equivalent circuit model. Furthermore, a remarkable numerical agreement was found between the charge-voltage characteristic for the positive half-cycle of the discharge and the voltage-dependent reactor capacity derived from the optical images. These findings present new opportunities for the enhancement and deployment of SDBDs across various technological sectors. Moreover, the erosion study conducted identified titanium as the optimal material for MEMS electrodes due to its high corrosion resistance and excellent electrical conductivity. There were also potentials for optimizing MEMS-SDBDs by selecting suitable dielectric materials and suitable SDBD geometries. Such optimization could further improve de-icing efficiency, for example by adjusting the dielectric properties to the specific application requirements. Innovative design concepts, such as targeted arrangement of electrodes or integration of sensors for monitoring the de-icing process, could also contribute to the performance and reliability of MEMS-SDBDs. Another significant aspect is the application of piezoelectric transformers to generate the required high voltage for SDBD systems. This innovative approach could optimize the efficiency of the de-icing process based on SDBD technology and thus contribute to improving the performance and safety of aircraft under extreme weather conditions. The field of research offers great potential for future studies, which underscores the significance and future relevance of the results obtained in this work.</abstract>
    <identifier type="urn">urn:nbn:de:bvb:384-opus4-1118933</identifier>
    <identifier type="url">https://opus.bibliothek.uni-augsburg.de/opus4/111893</identifier>
    <enrichment key="TitelVerleihendInstitution">Universität Augsburg, Mathematisch-Naturwissenschaftlich-Technische Fakultät</enrichment>
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    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Matthias Lindner</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Kaltes Plasma</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Barrierenentladung</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Enteisung</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Flugzeugaerodynamik</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>MEMS</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Plasmaentladung</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>uncontrolled</type>
      <value>Dielektrische Barrierenentladung</value>
    </subject>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="16317">Sensorik</collection>
    <collection role="institutes" number="">Labor Mikrosensorik</collection>
    <collection role="othpublikationsherkunft" number="">Dissertation in Kooperation</collection>
  </doc>
  <doc>
    <id>7183</id>
    <completedYear>2023</completedYear>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted>2023</thesisYearAccepted>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>362</pageNumber>
    <edition/>
    <issue/>
    <volume/>
    <type>doctoralthesis</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2023-05-17</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>2023-05-17</thesisDateAccepted>
    <title language="eng">Advanced nanofabrication techniques for electron emission devices</title>
    <abstract language="eng">The goal of this thesis is to develop an electron injection source based on a cold field emission cathode that ultimately functions as an alternative electron source used during the Birch reduction process. The experimental configuration to conduct an alternative Birch reduction involves the combination of various physical domains, including solid-state physics, physics of interfaces, electrochemistry, and fluid dynamics. The body of this thesis discusses the fabrication and characterization of a silicon nanocone array. It also presents a self-aligned method to incorporate an electronic gate structure that may function as an extractor grid. The emission behavior and transport properties of the silicon nanocones are assessed by scanning tunneling microscopy by performing measurements on flat silicon and silicon nanocone surfaces containing different dopant types and doping concentrations. Furthermore, additional experimental work is conducted to replace a thermally grown silicon dioxide layer with platinum silicide and characterize the electrical properties by means of scanning tunneling microscopy. Lastly, the thesis discusses the fabrication of two plasmonic structures and evaluates the plasmonic modes, surface enhancement, and Raman activity.</abstract>
    <identifier type="doi">10.3990/1.9789036556323</identifier>
    <identifier type="isbn">978-90-365-5632-3</identifier>
    <identifier type="url">https://research.utwente.nl/en/publications/advanced-nanofabrication-techniques-for-electron-emission-devices</identifier>
    <enrichment key="TitelVerleihendInstitution">University of Twente, MESA+ Institute of Nanotechnology</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">false</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Dirk Jonker</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nanofabrication</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Scanning tunneling microscopy (STM)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Geometric diode</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>surface enhanced Raman scattering</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>silicon nanowires</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>silicon nanocones</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>platinum silicide (PtSi)</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Plasmonic substrates</value>
    </subject>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="16317">Sensorik</collection>
    <collection role="institutes" number="">Labor Mikrosensorik</collection>
    <collection role="othpublikationsherkunft" number="">Dissertation in Kooperation</collection>
  </doc>
  <doc>
    <id>6379</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted>2021</thesisYearAccepted>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>xlii, 282</pageNumber>
    <edition/>
    <issue/>
    <volume/>
    <type>doctoralthesis</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2021-02-01</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Development of a sensor system for human breath acetone analysis based on photoacoustic spectroscopy</title>
    <abstract language="eng">The breath analysis section of this thesis outlines the potentials but also emphasises the concomitant challenges of human breath analysis. The section further describes the usefulness of a point-of-care (POC) device for breath acetone detection. In addition, it covers various breath analysis related subjects, which can be useful considering further developments of breath analysers. This includes an extensive summary involving the high abundant endogenous as well as the exogenous breath species present in a clinical environment.&#13;
Subsequently, a detailed discussion about the theoretical aspects of absorption spectra is provided, forming the basis for the spectral interference chapter. Classical absorption spectroscopy (AS) is compared with photoacoustic spectroscopy (PAS) in view of trace gas analysis. Different modulation schemes for signal generation, i.e. amplitude modulation (AM) and wavelength modulation (WM) are part of the comparison, while the advantages and disadvantages of each technique are highlighted. As a result, PAS is considered superior to AS and hence is selected as the method of choice regarding the development of a sensor for breath acetone detection.&#13;
A detailed mathematical derivation of the photoacoustic signal generation as well as the signal enhancement by means of acoustic resonance amplification is provided. Moreover, several phenomena causing signal attenuation are outlined, including vibrational-translational (VT) relaxation, vibrational-vibrational (VV) energy transfer mechanism, acoustic detuning and photodissociation.&#13;
Various simulations regarding spectral interferences in the infra-red (IR) and ultraviolet (UV) region are presented, demonstrating the susceptibility towards spectral cross-sensitivities in the IR region, hence, rather suggesting the UV region for acetone detection. However, this simulation can be easily adopted to other target analytes and serves as a basis for multicomponent analysis approaches in the IR region using tuneable light sources.&#13;
Ultra sensitive acetone detection employing a high power UV LED is presented and a detailed analysis considering the effects of environmental parameters onto the photoacoustic signal, including temperature, pressure, LED duty cycle and flow rate, is&#13;
provided. In addition, general cross-sensitivities of the photoacoustic signal towards the high abundant species O2, CO2 and H2O have been investigated and discussed. Moreover, several LED and photoacoustic cell (PAC) combinations have been compared in order to evaluate improvement approaches regarding an enhancement of the system’s sensitivity.&#13;
Finally, photoacoustic sensor setups employing an interband cascade laser (ICL) or a&#13;
quantum cascade laser (QCL) have been studied and compared to various UV setups in view of different key performance parameters, including the limits of detection (LOD) and the normalised noise equivalent absorption (NNEA) coefficients. The juxtaposition of the different approaches once more emphasises the extraordinary sensitivity of photoacoustic spectroscopy. To the best of the author’s knowledge, the LODs (3σ) of the UV LED based photoacoustic measurement in typical breath conditions (12.5 ppbV) and the LOD of the QCL measurement (0.79 ppbV) provide two world records. First, regarding photoacoustic acetone detection using an UV LED and second, in view of other published results for photoacoustic acetone detection in general.</abstract>
    <abstract language="deu">Zu Beginn der Arbeit werden zum einen die Potentiale der Analyse des menschlichen Ausatemgases aufgezeigt und zum anderen die damit verbundenen Herausforderungen beschrieben. Dabei wird auch die Nützlichkeit eines Point-of-Care (POC) Gerätes zur Bestimmung des Acetongehalts im Ausatemgas hervorgehoben. Darüber hinaus werden verschiedene mit der Atemgasanalyse zusammenhängende Themen behandelt, die hinsichtlich weiterer Entwicklungen von Atemgasanalysegeräten sehr hilfreich sein können. Dazu gehört u.a. eine ausführliche Analyse der Zusammensetzung des menschlichen Ausatemgases, die sowohl die hauptsächlichen endogenen als auch die im klinischen Umfeld verstärkt vorkommenden, exogenen Bestandteile, aufgelistet.&#13;
Anschließend werden die theoretischen Grundlagen von Absorptionsspektren detailliert behandelt, da sie die Grundlage für das Kapitel über die spektralen Interferenzen bilden. Des Weiteren werden die klassische Absorptionsspektroskopie (AS), als auch die photoakustische Spektroskopie (PAS), hinsichtlich ihrer Eignung für die Spurengasanalytik verglichen. Verschiedene Modulationsschemata für die Signalerzeugung, d.h. Amplitudenmodulation (AM) und Wellenlängenmodulation (WM), sind Teil des Vergleichs, wobei die Vor- und Nachteile jeder Technik hervorgehoben werden. Als Ergebnis wurde die PAS gegenüber der AS als überlegen angesehen und daher als Methode der Wahl bei der Entwicklung eines Sensors zur Bestimmung des Acetongehalts in der Ausatemluft ausgewählt.&#13;
Eine detaillierte mathematische Herleitung der photoakustischen Signalerzeugung sowie der Signalverstärkung mittels akustischer Resonanzverstärkung ist ebenso in der Arbeit enthalten. Darüber hinaus werden mehrere Phänomene der Signaldämpfung skizziert, dazu zählen u.a. die Schwingungs-Translation Relaxation, der Schwinungs-Schwingungs Energieübertragungsmechanismus, die Photodissoziation und die akustische Resonanzverschiebung.&#13;
Es werden verschiedene Simulationen bezüglich spektraler Interferenzen im infraroten (IR) und ultraviolleten (UV) Wellenlängenbereich vorgestellt, die die Anfälligkeit gegenüber spektralen Querempfindlichkeiten im IR-Bereich demonstrieren und somit eher den UV-Bereich für die Acetonbestimmung nahelegen. Die Simulationsergebnisse können leicht auf weitere Zielanalyten übertragen werden und dienen somit als Grundlage für Multikomponenten-Analyseansätze im IR-Bereich mittels durchstimmbarer Lichtquellen.&#13;
Im Ergebnisteil wird u.a. ein hochempfindliches System zur Acetondetektion unter Verwendung einer Hochleistungs-UV LED vorgestellt. Dieses System wurde außerdem einer detaillierten Analyse unter Berücksichtigung der Auswirkungen von Umgebungsparametern auf das photoakustische Signal, einschließlich Temperatur, Druck,&#13;
LED-Tastverhältnis und Durchfl ussrate, unterzogen. Zusätzlich wurden Querempfi ndlichkeiten des photoakustischen Systems gegenüber den im Ausatemgas hochkonzentrierten Stoffen O2, CO2 und H2O untersucht und die Ergebnisse diskutiert.&#13;
Darüber hinaus wurden verschiedene Kombinationen von LEDs und photoakustischen Zellen verglichen, um Verbesserungsansätze hinsichtlich der Empfindlichkeit des Systems zu untersuchen.&#13;
Abschließend wurden photoakustische Sensorsysteme, die einen Interbandkaskadenlaser (ICL) oder einen Quantenkaskadenlaser (QCL) verwenden, untersucht und mit verschiedenen UV LED Systemen im Hinblick auf unterschiedliche Leistungsparameter, einschließlich der Nachweisgrenzen (NWG) und den normierten, rauschäquivalenten Absorptionskoeﬀizienten, verglichen. Die Gegenüberstellung der verschiedenen Ansätze unterstreicht einmal mehr die außerordentliche Empfindlichkeit der photoakustischen Spektroskopie. Nach bestem Wissen des Autors stellen die NWGs (3σ) der photoakustischen Messung mit einer UV LED in typischer Atemgaszusammensetzung (12.5 ppbV) und die NWG der QCL-Messungen (0.79 ppbV) zwei Weltrekorde dar. Zum einen gibt es keine Veröffentlichung hinsichtlich einer besseren, photoakustisch ermittelten NWG für Aceton mittels einer UV LED und zum anderen stellt die mit dem QCL photoakustisch gemessene NWG im Allgemeinen die beste, je veröffentlichte photoakustische NWG für Aceton dar.</abstract>
    <identifier type="doi">10.5283/epub.44776</identifier>
    <identifier type="urn">urn:nbn:de:bvb:355-epub-447768</identifier>
    <enrichment key="TitelVerleihendInstitution">Universität Regensburg, Fakultät für Chemie und Pharmazie</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">false</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Stefan Weigl</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Photoacoustic</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Breath Analysis</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Acetone</value>
    </subject>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="persons" number="bierlsappz">Bierl, Rudolf (Prof. Dr.) - Sensorik-ApplikationsZentrum</collection>
    <collection role="othforschungsschwerpunkt" number="16317">Sensorik</collection>
    <collection role="institutes" number="">Sensorik-Applikationszentrum (SappZ)</collection>
    <collection role="othpublikationsherkunft" number="">Dissertation in Kooperation</collection>
  </doc>
  <doc>
    <id>7069</id>
    <completedYear/>
    <publishedYear>2024</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>42</volume>
    <type>article</type>
    <publisherName>AIP</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">High current field emission from Si nanowires on pillar structures</title>
    <abstract language="eng">We investigate the influence of the geometry and doping level on the performance of n-type silicon nanowire field emitters on silicon pillar structures. Therefore, multiple cathodes with 50 by 50 pillar arrays (diameter: 5 μm, height: 30 μm, spacing: 50 μm) were fabricated and measured in diode configuration. In the first experiment, we compared two geometry types using the same material. Geometry 1 is black silicon, which is a highly dense surface covering a forest of tightly spaced silicon needles resulting from self-masking during a plasma etching process of single crystal silicon. Geometry 2 are silicon nanowires, which are individual spaced-out nanowires in a crownlike shape resulting from a plasma etching process of single crystal silicon. In the second experiment, we compared two different silicon doping levels [n-type (P), 1–10 and &lt;0.005 Ω cm] for the same geometry. The best performance was achieved with lower doped silicon nanowire samples, emitting 2 mA at an extraction voltage of 1 kV. The geometry/material combination with the best performance was used to assemble an integrated electron source. These electron sources were measured in a triode configuration and reached onset voltages of about 125 V and emission currents of 2.5 mA at extraction voltages of 400 V, while achieving electron transmission rates as high as 85.0%.</abstract>
    <parentTitle language="eng">Journal of Vacuum Science and Technology B: Nanotechnology and Microelectronics</parentTitle>
    <identifier type="doi">10.1116/6.0003384</identifier>
    <identifier type="issn">2166-2754</identifier>
    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Philipp Buchner</author>
    <author>Matthias Hausladen</author>
    <author>Mathias Bartl</author>
    <author>Michael Bachmann</author>
    <author>Rupert Schreiner</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Doping</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Electron sources</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Nanowires</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Plasma processing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Field emitter arrays</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Triodes</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Semiconductors</value>
    </subject>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="persons" number="schreinerlm">Schreiner, Rupert (Prof. Dr.), Zeitschriftenaufsätze - Labor für Mikrosensorik</collection>
    <collection role="othforschungsschwerpunkt" number="16317">Sensorik</collection>
    <collection role="institutes" number="">Labor Mikrosensorik</collection>
  </doc>
  <doc>
    <id>7582</id>
    <completedYear/>
    <publishedYear>2001</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>81</pageFirst>
    <pageLast>82</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName>IEEE</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Dynamic and spectral properties of red DFB lasers</title>
    <abstract language="eng">Summary form only given. Narrow linewidth GaInP/AlGaInP DFB lasers are promising light sources for spectroscopy, for optical data storage systems and for plastic optical fiber WDM applications. However, little is known about the dynamic behavior of red DFB lasers. In this paper, we report on the dynamic and spectral properties of those devices. The lasers were first characterized under cw operation at 25/spl deg/C. Threshold currents are /spl sim/14 mA (475 /spl mu/m length) and /spl sim/18 mA (900 /spl mu/m length). The lasers show stable single mode emission at 680 nm with a SMSR better than -25 dB. The spectral linewidth of the 900 /spl mu/m long devices was measured by using a scanning-Fabry-Perot interferometer.</abstract>
    <parentTitle language="eng">Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Technical Digest (IEEE Cat. No.01CH37170) ; Baltimore,  May 6 - 11, 2001 (Trends in optics and photonics series ; 56)</parentTitle>
    <identifier type="isbn">1-55752-662-1</identifier>
    <identifier type="doi">10.1109/CLEO.2001.947498</identifier>
    <identifier type="url">http://ieeexplore.ieee.org/document/947498/</identifier>
    <enrichment key="opus.import.date">2024-09-08T12:45:13+00:00</enrichment>
    <enrichment key="opus.source">sword</enrichment>
    <enrichment key="opus.import.user">importuser</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">false</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Rupert Schreiner</author>
    <author>M. Mulot</author>
    <author>H. P. Gauggel</author>
    <author>H. Schweizer</author>
    <author>C. K. Laue</author>
    <author>R. Wallenstein</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othpublikationsherkunft" number="">Externe Publikationen</collection>
  </doc>
  <doc>
    <id>7810</id>
    <completedYear/>
    <publishedYear>2015</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>patent</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation>Ostbayerische Technische Hochschule Regensburg</creatingCorporation>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Miniaturized on-line trace analysis [Patentschrift]</title>
    <abstract language="eng">The invention relates to a measuring apparatus comprising an apparatus for forming a liquid optical waveguide having a substrate (1) having an at least partially curved closed microchannel (2) having a low-refractive coating (13), whereby there is formed in the substrate (1) at least one feed line (6) for supplying liquid, and whereby there is provided at least at one end of the closed microchannel (2) an apparatus for coupling light axially into the closed microchannel and/or for coupling light axially out of the closed microchannel (2), further comprising a light source (4), a light detector (5), and a first liquid pump (9) which supplies a sample liquid (7) to the closed microchannel (2) via the at least one feed line (6, 6a).</abstract>
    <identifier type="url">https://depatisnet.dpma.de/DepatisNet/depatisnet?action=bibdat&amp;docid=US000008948563B2&amp;zd=1#zd</identifier>
    <enrichment key="opus.import.date">2024-11-18T10:16:05+00:00</enrichment>
    <enrichment key="opus.source">sword</enrichment>
    <enrichment key="opus.import.user">importuser</enrichment>
    <enrichment key="PatentDate">05.10.2010</enrichment>
    <enrichment key="PatentNr">US008948563B2</enrichment>
    <enrichment key="PatentLand">US</enrichment>
    <enrichment key="PatentYear">2010</enrichment>
    <enrichment key="PatentZugriff">US</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">false</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Helmut Hummel</author>
    <author>Alfred Lechner</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="16316">Produktion und Systeme</collection>
  </doc>
  <doc>
    <id>9051</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>4</pageNumber>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName>IEEE</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2026-04-02</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">On Chip Electron Gun Design Using Silicon Tip Field Emitter Array</title>
    <abstract language="eng">Silicon based silicon tip array emitter has developed at OTH Regensburg, Germany. This array emitter is the basis for development of a novel electron gun. This field emitter electron sources were fabricated using laser-micromachining technique followed by MEMS technology. In this work, the design and development of electron gun using complete silicon structure is reported. The goal of this work is to develop electron gun using less effort, easy and hassle free technique.</abstract>
    <parentTitle language="eng">2025 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON), 14-18. Dezember  2025, Kochi, India</parentTitle>
    <identifier type="isbn">979-8-3315-3722-7</identifier>
    <identifier type="doi">10.1109/MAPCON65020.2025.11426578</identifier>
    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
    <enrichment key="opus.source">publish</enrichment>
    <enrichment key="opus.doi.autoCreate">false</enrichment>
    <enrichment key="opus.urn.autoCreate">false</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Ranjan Kumar Barik</author>
    <author>Vikram Singh Rawat</author>
    <author>Subhrajit Manna</author>
    <author>Ayan Kumar Bandyopadhyay</author>
    <author>Matthias Hausladen</author>
    <author>Ali Asgharzade</author>
    <author>Rupert Schreiner</author>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="persons" number="schreinerlmconf">Schreiner, Rupert (Prof. Dr.), Konferenzbeiträge - Labor für Mikrosensorik</collection>
    <collection role="institutes" number="">Labor Mikrosensorik</collection>
    <collection role="DFGFachsystematik" number="1">Ingenieurwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="">Digitale Transformation</collection>
  </doc>
  <doc>
    <id>8969</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>6</issue>
    <volume>43</volume>
    <type>article</type>
    <publisherName>AVS</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">SiMiC: Context-aware silicon microstructure characterization using attention-based convolutional neural networks for field-emission tip analysis</title>
    <abstract language="eng">Accurate characterization of silicon microstructures is essential for advancing microscale fabrication, quality control, and device performance. Traditional analysis using scanning electron microscopy (SEM) often requires labor-intensive, manual evaluation of feature geometry, limiting throughput and reproducibility. In this study, we propose SiMiC: Context-aware Silicon Microstructure Characterization Using Attention-based Convolutional Neural Networks for Field-Emission Tip Analysis. By leveraging deep learning, our approach efficiently extracts morphological features—such as size, shape, and apex curvature—from SEM images, significantly reducing human intervention while improving measurement consistency. A specialized dataset of silicon-based field-emitter tips was developed, and a customized convolutional neural network architecture incorporating attention mechanisms was trained for multiclass microstructure classification and dimensional prediction. Comparative analysis with classical image processing techniques demonstrates that SiMiC achieves high accuracy while maintaining interpretability. The proposed framework establishes a foundation for data-driven microstructure analysis directly linked to field-emission performance, opening avenues for correlating emitter geometry with emission behavior and guiding the design of optimized cold-cathode and SEM electron sources. The related dataset and algorithm repository that could serve as a baseline in this area can be found at https://research.jingjietan.com/?q=SIMIC.</abstract>
    <parentTitle language="eng">Journal of Vacuum Science &amp; Technology B</parentTitle>
    <identifier type="doi">10.1116/6.0005068</identifier>
    <enrichment key="opus.import.date">2026-03-29T15:41:42+00:00</enrichment>
    <enrichment key="opus.source">sword</enrichment>
    <enrichment key="opus.import.user">importuser</enrichment>
    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Jing Jie Tan</author>
    <author>Rupert Schreiner</author>
    <author>Matthias Hausladen</author>
    <author>Ali Asgharzade</author>
    <author>Simon Edler</author>
    <author>Julian Bartsch</author>
    <author>Michael Bachmann</author>
    <author>Andreas Schels</author>
    <author>Ban-Hoe Kwan</author>
    <author>Danny Wee-Kiat Ng</author>
    <author>Yan-Chai Hum</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Field emitter arrays</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Quality assurance</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Convolutional neural network</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Deep learning</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Image processing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Machine learning</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Cold cathodes</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Scanning electron microscopy</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Electron sources</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Chemical elements</value>
    </subject>
    <collection role="institutes" number="FakANK">Fakultät Angewandte Natur- und Kulturwissenschaften</collection>
    <collection role="persons" number="schreinerlm">Schreiner, Rupert (Prof. Dr.), Zeitschriftenaufsätze - Labor für Mikrosensorik</collection>
    <collection role="institutes" number="">Labor Mikrosensorik</collection>
    <collection role="DFGFachsystematik" number="1">Ingenieurwissenschaften</collection>
    <collection role="othforschungsschwerpunkt" number="">Digitale Transformation</collection>
  </doc>
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