@inproceedings{VielhauerLiNtalianisetal.2014, author = {Vielhauer, Claus and Li, Chang-Tsun and Ntalianis, Klimis and Tsapatsoulis, Nicolas}, title = {Session details: Forensic and biometric challenges in information hiding and media security}, series = {Konferenz: IH\&MMSec '14: ACM Information Hiding and Multimedia Security Workshop/ Titel: Proceedings of the 2nd ACM workshop on Information hiding and multimedia security}, booktitle = {Konferenz: IH\&MMSec '14: ACM Information Hiding and Multimedia Security Workshop/ Titel: Proceedings of the 2nd ACM workshop on Information hiding and multimedia security}, publisher = {ACM}, address = {Salzburg Austria}, isbn = {978-1-4503-2647-6}, doi = {10.1145/3247405}, year = {2014}, language = {en} } @article{SchmidtAmanMajchereketal.2014, author = {Schmidt, Marc-Peter and Aman, Alexander and Majcherek, S{\"o}ren and Hirsch, S{\"o}ren}, title = {Microwave Sensor for Mechanical Stress Measurement Based on Ferroelectric Graphene Nanosheet Composites}, series = {Procedia Engineering}, journal = {Procedia Engineering}, publisher = {Elsevier}, issn = {18777058}, doi = {10.1016/j.proeng.2014.11.399}, pages = {124 -- 127}, year = {2014}, language = {en} } @article{SchroederJuettnerDobkowicz2015, author = {Schr{\"o}der, Christina and J{\"u}ttner, Tim and Dobkowicz, Matthias}, title = {p-BioSPRE - p-medicine Biospecimen Search and Project Request Engine}, series = {Journal of Clinical Bioinformatics}, journal = {Journal of Clinical Bioinformatics}, number = {Ausgabe: Suppl 1/ Band: 5}, publisher = {BioMed Central Ltd}, doi = {10.1186/2043-9113-5-S1-S20}, pages = {20}, year = {2015}, language = {en} } @techreport{IngwerGassenPuestetal.2015, author = {Ingwer, Patrick and Gassen, Fabian and P{\"u}st, Stefan and Duhn, Melanie and Sch{\"a}licke, Marten and M{\"u}ller, Katja and Ruhm, Heiko and Rettig, Josephin and Hasche, Eberhard and Fischer, Arno and Creutzburg, Reiner M.}, title = {Investigation of Practical Usefulness of Structure from Motion (SfM) Point Clouds Obtained from Different Consumer Cameras}, issn = {1861-3462}, pages = {181 -- 187}, year = {2015}, abstract = {This paper deals with the usefulness and accuracy of point clouds obtained by different consumer cameras out of structure from motion (SfM) algorithms. It summarizes some research results of the practical usage of the SfM method in applications where highly accurate point clouds are required.}, language = {en} } @techreport{GoeckeMuellerEbertSpiegel2015, author = {Goecke, Sven-Frithjof and M{\"u}ller, Alexander and Ebert-Spiegel, Michael}, title = {ECOWELD - Energiegeregeltes Metallschutzgas- und Laserschweißen : "Ingenieurnachwuchs" 2011 (Maschinenbau) : Ausschreibung der F{\"o}rderlinie "Qualifizierung von Ingenieurnachwuchs an Fachhochschulen" 2011 im Rahmen des Programms "Forschung an Fachhochschulen" : Schlussbericht : Laufzeit des Vorhabens von: 01.08.2011 bis: 31.03.2015}, doi = {10.2314/GBV:867121742}, pages = {55}, year = {2015}, language = {de} } @inproceedings{SchmidtOseevEngeletal.2015, author = {Schmidt, Marc-Peter and Oseev, Aleksandr and Engel, Christian and Brose, Andreas and Hirsch, S{\"o}ren}, title = {A7.1 - Flexible free-standing SU-8 microfluidic impendance spectroscopy sensor for 3D molded interconnect devices application}, series = {Konferenz: AMA Conferences 2015/ Titel: Proceedings SENSOR 2015}, booktitle = {Konferenz: AMA Conferences 2015/ Titel: Proceedings SENSOR 2015}, publisher = {AMA Service GmbH}, address = {N{\"u}rnberg, Germany}, isbn = {978-3-9813484-8-4}, doi = {10.5162/sensor2015/A7.1}, pages = {151 -- 155}, year = {2015}, language = {en} } @inproceedings{SchmidtOseevLucklumetal.2015, author = {Schmidt, Marc-Peter and Oseev, Aleksandr and Lucklum, Ralf and Hirsch, S{\"o}ren}, title = {Technology towards a SAW based phononic crystal sensor}, series = {Konferenz: SPIE Microtechnologies, Barcelona, Spain, 2015/ Titel: PROCEEDINGS VOLUME 9517 SPIE MICROTECHNOLOGIES | 4-6 MAY 2015 Smart Sensors, Actuators, and MEMS VII; and Cyber Physical Systems}, booktitle = {Konferenz: SPIE Microtechnologies, Barcelona, Spain, 2015/ Titel: PROCEEDINGS VOLUME 9517 SPIE MICROTECHNOLOGIES | 4-6 MAY 2015 Smart Sensors, Actuators, and MEMS VII; and Cyber Physical Systems}, editor = {S{\´a}nchez-Rojas, Jos{\´e} Luis and Brama, Riccardo}, doi = {10.1117/12.2178810}, year = {2015}, language = {en} } @inproceedings{BraemerViebackSchilleretal.2015, author = {Br{\"a}mer, Stefan and Vieback, Linda and Schiller, Gregor and Hirsch, S{\"o}ren}, title = {Situiertes Lernen in der dualen Berufsausbildung. Entwicklung eines Lehr-Lern-Arrangements f{\"u}r den Ausbildungsinhalt „Sicherheit und Gesundheitsschutz bei der Arbeit"}, series = {Konferenz: 61. GfA-Fr{\"u}hjahrskongress, 2015/ Titel: Verantwortung f{\"u}r die Arbeit der Zukunft 61. GfA-Fr{\"u}hjahrskongress, 25. - 27.02.2015, Karlsruhe}, booktitle = {Konferenz: 61. GfA-Fr{\"u}hjahrskongress, 2015/ Titel: Verantwortung f{\"u}r die Arbeit der Zukunft 61. GfA-Fr{\"u}hjahrskongress, 25. - 27.02.2015, Karlsruhe}, publisher = {GfA-Press}, address = {Dortmund}, isbn = {978-3-936804-18-8}, year = {2015}, language = {de} } @inproceedings{OseevSchmidtLucklumetal.2015, author = {Oseev, Aleksandr and Schmidt, Marc-Peter and Lucklum, Ralf and Zubtsov, Mikhail and Hirsch, S{\"o}ren}, title = {Phononic crystal based liquid sensor governed by localized defect resonances}, series = {Konferenz: IEEE Symposium (IUS) Ultrasonics, 2015/ Titel: 2015 IEEE International Ultrasonics Symposium (IUS)}, booktitle = {Konferenz: IEEE Symposium (IUS) Ultrasonics, 2015/ Titel: 2015 IEEE International Ultrasonics Symposium (IUS)}, publisher = {IEEE}, address = {Taipei, Taiwan}, isbn = {978-1-4799-8182-3}, doi = {10.1109/ULTSYM.2015.0053}, pages = {1 -- 4}, year = {2015}, language = {en} } @article{MajcherekAmanHirschetal.2015, author = {Majcherek, Soeren and Aman, A. and Hirsch, S{\"o}ren and Schmidt, B.}, title = {Silicon based in-situ measurement system for flex loads on MLCCs in PCB manufacturing chain}, series = {Sensors and Actuators A: Physical}, journal = {Sensors and Actuators A: Physical}, number = {233}, publisher = {Elsevier}, issn = {09244247}, doi = {10.1016/j.sna.2015.06.005}, pages = {267 -- 274}, year = {2015}, language = {en} } @article{AmanMajcherekHirsch2015, author = {Aman, Alexander and Majcherek, Soeren and Hirsch, S{\"o}ren}, title = {Microwave Emission of Carbon Fibres During Electrical Breakdown}, series = {Sensor Letters}, journal = {Sensor Letters}, number = {Ausgabe: 1/ Heft: 13}, publisher = {American Scientific Publishers}, issn = {1546198X, 15461971}, doi = {10.1166/sl.2015.3408}, pages = {98 -- 101}, year = {2015}, language = {en} } @inproceedings{SchmidtOseevLucklumetal.2016, author = {Schmidt, Marc-Peter and Oseev, Aleksandr and Lucklum, Ralf and Zubtsov, Mikhail and Hirsch, S{\"o}ren}, title = {SAW based phononic crystal liquid sensor - Periodic microfluidic channels approach}, series = {Konferenz: 2016 IEEE International Ultrasonics Symposium (IUS)/ Titel:2016 IEEE International Ultrasonics Symposium (IUS)}, booktitle = {Konferenz: 2016 IEEE International Ultrasonics Symposium (IUS)/ Titel:2016 IEEE International Ultrasonics Symposium (IUS)}, publisher = {IEEE}, address = {Tours, France}, isbn = {978-1-4673-9897-8}, doi = {10.1109/ULTSYM.2016.7728788}, pages = {1 -- 4}, year = {2016}, abstract = {Phononic crystals (PnC) with a specifically designed liquid-filled defect have been recently introduced as a novel sensor platform (Lucklum et al. in Sens Actuators B Chem 171-172:271-277, 2012). Sensors based on this principle feature a band gap covering the typical input span of the measurand as well as a narrow transmission peak within the band gap where the frequency of maximum transmission is governed by the measurand. This approach has been applied for determination of volumetric properties of liquids (Lucklum et al. in Sens Actuators B Chem 171-172:271-277, 2012; Oseev et al. in Sens Actuators B Chem 189:208-212, 2013; Lucklum and Li in Meas Sci Technol 20(12):124014, 2009) and has demonstrated attractive sensitivity. One way to improve sensitivity requires higher probing frequencies in the range of 100 MHz and above. In this range surface acoustic wave (SAW) devices are an established basis for sensors. We have performed first tests towards a PnC microsensors (Lucklum et al. in Towards a SAW based phononic crystal sensor platform. In: 2013 Joint European frequency and time forum and international frequency control symposium (EFTF/IFC), pp 69-72, 2013). The respective feature size of the PnC SAW sensor has dimensions in the range of 10 µm and below. Whereas those dimensions are state of the art for common MEMS materials, etching of holes and cavities in piezoelectric materials that have an aspect ratio diameter/depth is still challenging. In this contribution we describe an improved technological process able to realize considerably deep and uniform holes in a SAW substrate.}, language = {en} } @inproceedings{FominaKoshuroFominetal.2016, author = {Fomina, Marina A. and Koshuro, Vladimir A. and Fomin, Aleksandr A. and Rodionov, Igor V. and Skaptsov, Aleksandr A. and Zakharevich, Andrey M. and Aman, Alexander and Oseev, Aleksandr and Hirsch, S{\"o}ren and Majcherek, Soeren}, title = {Peculiarities of structure formation of layered metal-oxide system Ti-Ta-(Ti,Ta) x O y during electro-spark alloying and thermally stimulated modification}, series = {Konferenz: Saratov, Russian Federation/ Titel: PROCEEDINGS VOLUME 9917 SARATOV FALL MEETING 2015 | 22-25 SEPTEMBER 2015 Saratov Fall Meeting 2015: Third International Symposium on Optics and Biophotonics and Seventh Finnish-Russian Photonics and Laser Symposium (PALS)}, booktitle = {Konferenz: Saratov, Russian Federation/ Titel: PROCEEDINGS VOLUME 9917 SARATOV FALL MEETING 2015 | 22-25 SEPTEMBER 2015 Saratov Fall Meeting 2015: Third International Symposium on Optics and Biophotonics and Seventh Finnish-Russian Photonics and Laser Symposium (PALS)}, editor = {Tuchin, Valery V. and Derbov, Vladimir L. and Postnov, Dmitry E. and Meglinski, Igor V. and Larin, Kirill V. and Pravdin, Alexander B. and Genina, Elina A.}, publisher = {SPIE. Digital Library}, address = {Saratov, Russian Federation}, doi = {10.1117/12.2229491}, year = {2016}, abstract = {The study focuses on high-performance combined electro-spark alloying of titanium and titanium alloy (VT1-0, VT16) surface and porous matrix structure oxidation. The metal-oxide coatings morphology is the result of melt drop transfer, heat treatment, and oxidation. The study establishes the influence of technological regimes of alloying and oxidation on morphological heterogeneity of biocompatible layered metal-oxide system Ti-Ta-(Ti,Ta)xOy. It was found that during electro-spark alloying the concentration of tantalum on the titanium surface ranges from 0.1 to 3.2 at.\%. Morphology of the deposited splats is represented by uniformly grown crystals of titanium and tantalum oxides, which increase from nano- to submicron size.}, language = {en} } @article{LucklumZubtsovOseevetal.2016, author = {Lucklum, Ralf and Zubtsov, Mikhail and Oseev, Aleksandr and Schmidt, Marc-Peter and Hirsch, S{\"o}ren}, title = {SAW Based Sandwich Phononic Crystal Sensor}, series = {Procedia Engineering}, journal = {Procedia Engineering}, number = {168}, publisher = {Elsevier}, issn = {18777058}, doi = {10.1016/j.proeng.2016.11.251}, pages = {700 -- 703}, year = {2016}, abstract = {Sensing is nowadays an accepted application of phononic crystals with chemical and biosensors for liquid analytes being the perhaps most promising ones. A liquid-filled defect is introduced that turns into a resonant cavity. Similar to the well-known resonant sensors sensitivity can be increased with higher operating frequencies. We introduce a Sandwiched Phononic Crystal (SPC), which applies a resonant cavity located between two stacked layers on top of a SAW device. Key challenges are coupling of surface acoustic wave into the liquid cavities and avoiding scattering of the guided waves into the bulk of the sensor chip.}, language = {en} } @book{Lembke2015, author = {Lembke, Hans H.}, title = {Ph{\"o}nix, Wiener und Berliner: Aufstieg und Sturz eines europ{\"a}ischen Versicherungskonzerns}, publisher = {Springer VS}, address = {Wiesbaden}, isbn = {978-3-658-10973-8}, doi = {10.1007/978-3-658-10974-5}, year = {2015}, abstract = {Der Band stellt einerseits Vorgeschichte, Verlauf und Auswirkungen eines der spektakul{\"a}rsten Zusammenbr{\"u}che eines Versicherungskonzerns im 20. Jahrhundert dar und bietet dar{\"u}ber hinaus eine am Beispiel demonstrierte, systematische Analyse der Verflechtung von Misswirtschaft mit Medien, Staat und Gesellschaft. Die Ph{\"o}nix Lebensversicherung, mit Sitz in Wien und Kunden in 22 L{\"a}ndern, wurde im Jahr 1936 zahlungsunf{\"a}hig. Sie hatte riesige Verluste aufget{\"u}rmt, Bilanzen gef{\"a}lscht und Schl{\"u}sselpersonen hofiert. Ihr Sturz drohte eine europaweite Finanzkrise auszul{\"o}sen und wurde mit diktatorischen Maßnahmen aufgefangen. Das Buch schildert die wirtschaftliche wie politische Rolle des Versicherers vor 1918, w{\"a}hrend der Weimarer Republik und ab 1933.}, language = {de} } @inproceedings{MakrushinScheidatVielhauer2015, author = {Makrushin, Andrey and Scheidat, Tobias and Vielhauer, Claus}, title = {Capturing latent fingerprints from metallic painted surfaces using UV-VIS spectroscope}, series = {Konferenz: IS\&T/SPIE Electronic Imaging, 2015/ Titel: Proceedings of SPIE - The International Society for Optical Engineering}, booktitle = {Konferenz: IS\&T/SPIE Electronic Imaging, 2015/ Titel: Proceedings of SPIE - The International Society for Optical Engineering}, editor = {Alattar, Adnan M. and Memon, Nasir D. and Heitzenrater, Chad D.}, publisher = {SPIE. Digital Library}, address = {San Francisco, California, United States}, doi = {10.1117/12.2078876}, year = {2015}, language = {en} } @article{AmanMajcherekSchmidtetal.2016, author = {Aman, A. and Majcherek, Soeren and Schmidt, M. P. and Orseev, A. and Engel, C. and Hirsch, S{\"o}ren}, title = {Behavior of Current Flow on Lead Zirconate Titanate Surfaces during Mechanical Impact}, series = {Research \& Reviews: Journal of Material Sciences}, journal = {Research \& Reviews: Journal of Material Sciences}, number = {Ausgabe: 1/ Band: 4}, publisher = {Research and Reviews}, issn = {23216212}, doi = {10.4172/2321-6212.1000137}, year = {2016}, language = {en} } @article{SchmidtOseevLucklumetal.2016, author = {Schmidt, Marc-Peter and Oseev, Aleksandr and Lucklum, Ralf and Zubtsov, Mikhail and Hirsch, S{\"o}ren}, title = {SAW based phononic crystal sensor, technological challenges and solutions}, series = {Microsystem Technologies}, journal = {Microsystem Technologies}, publisher = {Springer Link}, issn = {0946-7076, 1432-1858}, doi = {10.1007/s00542-015-2781-3}, pages = {1593 -- 1599}, year = {2016}, language = {en} } @article{Luethy2015, author = {L{\"u}thy, Anja}, title = {Communication: Social media - Also in this part of the world attractive for hospitals?}, series = {Deutsches {\"A}rzteblatt}, journal = {Deutsches {\"A}rzteblatt}, issn = {0012-1207 (PRINT)}, pages = {A276 -- A278}, year = {2015}, language = {en} } @inproceedings{NeubertHildebrandtDittmann2016, author = {Neubert, Tom and Hildebrandt, Mario and Dittmann, Jana}, title = {Image pre-processing detection: Evaluation of Benford's law, spatial and frequency domain feature performance}, series = {Konferenz: 2016 First International Workshop on Sensing, Processing and Learning for Intelligent Machines (SPLINE)/ Titel: 2016 First International Workshop on Sensing, Processing and Learning for Intelligent Machines (SPLINE)}, booktitle = {Konferenz: 2016 First International Workshop on Sensing, Processing and Learning for Intelligent Machines (SPLINE)/ Titel: 2016 First International Workshop on Sensing, Processing and Learning for Intelligent Machines (SPLINE)}, publisher = {IEEE}, address = {Aalborg, Denmark}, isbn = {978-1-4673-8917-4}, doi = {10.1109/SPLIM.2016.7528405}, pages = {1 -- 5}, year = {2016}, abstract = {This Paper proposes a novel method for the blind detection of image pre-processing techniques by means of statistical pattern recognition in image forensics. The technique is intended to detect sensor intrinsic pre-processing steps as well as manually applied filters. We have exemplary chosen 6 pre-processing filters with different parameter settings. The concept utilizes 29 image features which are supposed to allow for a reliable model creation during supervised learning. The evaluation of the trained models indicates average accuracies between 82.50 and 94.53\%. The investigation of image data from 8 sensors leads to the detection of credible pre-processing filters. Those results adumbrate that our method might be suitable to prove the authenticity of the data origin and the integrity of image data based on the detected preprocessing techniques. The preliminary evaluation for manually applied filters yields recognition accuracies between 39.09\% (14 classes) and 53.33\% (7 classes).}, language = {en} } @article{ScheegDzielinskiFitz2020, author = {Scheeg, Jochen and Dzielinski, Patrick and Fitz, Lukas R. G.}, title = {Analyse von Digitalen Reifegradmodellen f{\"u}r Kleine und Mittlere Unternehmen/Analysis of Digital Maturity Models for SMEs}, publisher = {Institut f{\"u}r Innovations- und Informationsmanagement (ifii)}, year = {2020}, language = {de} } @inproceedings{FitzVeldyaevaTeutenbergetal.2023, author = {Fitz, Lukas R. G. and Veldyaeva, Ekaterina and Teutenberg, Lukas and Scheeg, Michaela and Scheeg, Jochen}, title = {Puzzle away the Puzzledness: Action-Design Study of an Educational Escape Room for Intervention in SMEs' Perception towards ICT Adoption}, series = {Konferenz: 57th Hawaii International Conference on System Sciences (HICSS); Honolulu, HI, USA}, booktitle = {Konferenz: 57th Hawaii International Conference on System Sciences (HICSS); Honolulu, HI, USA}, isbn = {978-0-9981331-7-1}, pages = {5347 -- 5356}, year = {2023}, abstract = {Digital transformation initiatives in small and medium-sized enterprises (SME) are often hampered by individual practitioners' perceptions of information and communication technology (ICT). This research employs an educational escape room (ER) game for an intervention towards informed decision-making on ICT adoption in SMEs. ER design and implementation are elaborated and consequently tested with SME practitioners, all embedded in an action-design study based on a qualitative research methodology. The result highlights a trade-off between creating immersive game experiences and achieving learning objectives. Still, the outcome implies an impact on players' perception of ICT integrated in the ER. The findings contribute to the emerging field of serious games for learning and shed light on the potential of game-based interventions for SMEs.}, language = {en} } @inproceedings{Kramann2023, author = {Kramann, Guido}, title = {AOGscript - Design of a Stand-Alone Scripting Language for the Generation of Music. Proceedings of the International Symposium on Ubiquitous Music, 2023}, series = {Konferenz: 13th International Symposium on Ubiquitous Music 2023 (Ubimus23) , Ulster University, Derry~Londonderry, Northern Ireland, 2-4 November, 2023}, booktitle = {Konferenz: 13th International Symposium on Ubiquitous Music 2023 (Ubimus23) , Ulster University, Derry~Londonderry, Northern Ireland, 2-4 November, 2023}, publisher = {Zenodo}, isbn = {978-65-00-85069-7}, doi = {10.5281/zenodo.10670220}, pages = {95 -- 109}, year = {2023}, abstract = {Ubiquitous Music is an interdisciplinary research area that combines methodologies from music, computer science, education, creativity studies, human sciences and engineering. The Ubiumus 2023 symposium, held at Ulster University and North West Regional College in Derry~Londonderry, Northern Ireland, included contributions on the following topics: Rapid Prototyping and Live Environments Ecological Approaches to Ubiquitous Music Ubiquitous Music Creative Practices, Tools and Influences The symposium also included a number of artistic contributions and workshops, which are also discussed in the proceedings volume. A number of events (including all paper presentations, an invited lecture, a panel discussion, and a keynote and associated performance) were also documented via video, with a link available in this Proceedings volume.}, language = {en} } @unpublished{Tarassow2023, author = {Tarassow, Artur}, title = {The potential of LLMs for coding with low-resource and domain-specific programming languages}, doi = {10.48550/arXiv.2307.13018}, pages = {1 -- 27}, year = {2023}, abstract = {This paper presents a study on the feasibility of using large language models (LLM) for coding with low-resource and domain-specific programming languages that typically lack the amount of data required for effective LLM processing techniques. This study focuses on the econometric scripting language named hansl of the open-source software gretl and employs a proprietary LLM based on GPT-3.5. Our findings suggest that LLMs can be a useful tool for writing, understanding, improving, and documenting gretl code, which includes generating descriptive docstrings for functions and providing precise explanations for abstract and poorly documented econometric code. While the LLM showcased promoting docstring-to-code translation capability, we also identify some limitations, such as its inability to improve certain sections of code and to write accurate unit tests. This study is a step towards leveraging the power of LLMs to facilitate software development in low-resource programming languages and ultimately to lower barriers to entry for their adoption.}, language = {en} } @inproceedings{Guido2023, author = {Guido, Kramann}, title = {AOGscript, Generative Code as Conceptual Artwork: Giving Space to Astonishment. Proceedings of xCoAx 2023}, series = {Konferenz: xCoAx 2023 11th Conference on Computation, Communication, Aesthetics \& X}, booktitle = {Konferenz: xCoAx 2023 11th Conference on Computation, Communication, Aesthetics \& X}, publisher = {i2ADS}, address = {Porto, Portugal}, isbn = {978-989-9049-52-9}, doi = {10.34626/xcoax.2023}, pages = {401 -- 408}, year = {2023}, language = {en} } @unpublished{BaevaBrunnerElmasetal.2023, author = {Baeva, Gergana and Brunner, Robert and Elmas, Filiz and Fresz, Benjamin and Fuß, Christine and Heß, Claudia and Kellmeyer, Philipp and Mahner, Malin and Paulheim, Heiko and Poretschkin, Maximilian and Puntschuh, Michael and Seyerlein-Klug, Annegrit}, title = {Welche Zertifizierung ist hilfreich f{\"u}r Verbraucher*innen?}, doi = {10.24406/publica-2132}, year = {2023}, abstract = {In diesem Whitepaper fokussieren wir uns auf die KI-Verordnung nicht erfasste freiwillige Zertifizierung. Dabei stehen die Interessen und Sichtweisen der Verbraucher*innen im Vordergrund. Als Verbraucher*innen betrachten wir nicht nur die unmittelbaren Nutzer*innen von KI-Systemen, sondern auch Privatpersonen, die indirekt von KI-Ergebnissen betroffen sein k{\"o}nnen. Zudem ber{\"u}cksichtigen wir Menschen in der Rolle als souver{\"a}ne Datensubjekte, deren personenbezogene Daten in die Entwicklung von KI-Systemen einfließen. Dieses breite Verst{\"a}ndnis des Verbraucher*innenbegriffs entspricht dem Selbstverst{\"a}ndnis des Zentrums f{\"u}r vertrauensw{\"u}rdige K{\"u}nstliche Intelligenz (ZVKI). Wir stellen Thesen auf, wie freiwillige Zertifizierungen von KI-Systemen f{\"u}r Verbraucher*innen n{\"u}tzlich sein k{\"o}nnen. Die im Verlauf vorgestellten und begr{\"u}ndeten acht Thesen wurden in einer Reihe von interdisziplin{\"a}ren Workshops erarbeitet. Dabei identifizierten wir Herausforderungen einer KI-Zertifizierung aus Verbraucher*innensicht und pr{\"a}zisierten diese iterativ. Die Gruppendiskussionen dienten als Grundlage dieses Whitepapers und bauten auf Erkenntnissen der Fach-Arbeitsgruppe „KI Zertifizierung" des ZVKI auf. Alle Co-Autor*innen waren an der Erstellung des finalen Texts beteiligt. Die aufgestellten Thesen thematisieren grundlegende Anforderungen an eine KI-Zertifizierung aus einer {\"u}bergeordneten Perspektive, unabh{\"a}ngig von den spezifischen Details einer KI-Anwendung. Somit liefern sie keine Aussagen zu konkreten Inhalten der Zertifizierung. Detaillierte Empfehlungen setzen eine umfassende Analyse von Einsatzf{\"a}llen voraus, die in diesem Rahmen nicht geleistet werden kann.}, language = {de} } @techreport{OlschewskiBluhmFirnkornetal.2023, author = {Olschewski, Detlef and Bluhm, Andr{\´e} and Firnkorn, Joerg and Lucieri, Adriano and Palacio, Sebastian and Streppel, Yeji and Zednik, Carlos and G{\"o}rge, Rebekka and Poretschkin, Maximilian and Becker, Nikolas and Zielke, Thomas and Kruschel, Christian and Neumann-Brosig, Matthias and B{\"a}uerle, Stephen and Eifert, Marton and L{\´o}pez, Erik Martori and Assion, Felix and Seyerlein-Klug, Annegrit and Schmid, Ute and Haufe, Stefan and Gautier, Antoine and Bieringer, Lukas and Besold, Tarek R. and Cremers, Armin B.}, title = {DIN SPEC 92001-3 Artificial Intelligence - Life Cycle Processes and Quality Requirements - Part 3: Explainability}, publisher = {Beuth Verlag}, pages = {24}, year = {2023}, abstract = {DIN SPEC 92001-3 Artificial Intelligence - Life Cycle Processes and Quality Requirements. Artificial Intelligence has become a game-changer, but its impact must be approached responsibly. This is the third document in a series, and it aims to ensure that AI systems are developed, deployed, and used efficiently, responsibly, and in a trustworthy way. It focuses on "Explainability" - the ability to understand how AI makes decisions. This DIN SPEC 92001-3 provides a domain-independent guide on promoting explainability throughout the AI system's life cycle. It tackles "opacity", describing sources and effects of opacity in AI and how explanations can mitigate them. The goal is to foster a better understanding and effective use of Explainable AI across various applications, fostering principles of trust and transparency in AI-based systems. This DIN SPEC is the result of „Zertifizierung von Standard-KI-Anwendungen (Zertifizierte KI project)" https://www.zertifizierte-ki.de/. The publication is available for free at Beuth Verlag GmbH www.beuth.de - plus the search for "DIN SPEC 92001-3"}, language = {en} } @inproceedings{VeldyaevaFitzScheeg2023, author = {Veldyaeva, Ekaterina and Fitz, Lukas R. G. and Scheeg, Jochen}, title = {Developing Digital Competencies in Small and Medium-Sized Enterprises Through Microlearning Applications: A Research Agenda}, series = {Konferenz: Perspectives in Business Informatics Research 22nd International Conference on Business Informatics Research, BIR 2023, Ascoli Piceno, Italy, September 13-15, 2023, Proceedings}, booktitle = {Konferenz: Perspectives in Business Informatics Research 22nd International Conference on Business Informatics Research, BIR 2023, Ascoli Piceno, Italy, September 13-15, 2023, Proceedings}, doi = {10.1007/978-3-031-43126-5_7}, pages = {41 -- 58}, year = {2023}, abstract = {This article presents a research outline on the use of microlearning applications to develop digital competencies in Small and Medium-sized Enter-prises (SMEs). The digital transformation of businesses has become essential for their survival, and SMEs need to develop digital competencies (DC) to remain competitive in the market. Microlearning (ML), a form of learning that involves small, bite-sized learning modules, has been gaining popularity in recent years as a way to efficiently and effectively develop skills. Through a semi-systematic literature review approach, our study examines prevalent knowledge in the area of ML and DC and discusses interrelations. As a result, we propose a research roadmap consisting of six research questions targeting four dimensions of ML for DC development in SMEs: 1) context, 2) formats, 3) reward system, and 4) complexity level.}, language = {en} } @inproceedings{LemkeMeisterWessels2023, author = {Lemke, Claudia and Meister, Vera and Weßels, Doris}, title = {Kritische Reflexion und Handlungsans{\"a}tze zum Einsatz Generativer KI in der Wirtschaftsinformatik-Lehre}, series = {36. Jahrestagung des Arbeitskreises Wirtschaftsinformatik (AKWI)}, booktitle = {36. Jahrestagung des Arbeitskreises Wirtschaftsinformatik (AKWI)}, pages = {16}, year = {2023}, abstract = {Die digitalen Technologien ver{\"a}ndern die Gesellschaft, auch die akademischen Wissen-schaftssysteme sind betroffen. Das erfordert verst{\"a}rkte {\"U}berlegungen zum Einsatz solcher Techno-logien und zu ihrem Einfluss auf Lehre und Studium. Der Beitrag fokussiert die Relevanz von AI-Literacy im Kontext des Einsatzes Generativer KI aus zwei Perspektiven. Zun{\"a}chst wird die Wahr-nehmung und Bereitschaft von Studierenden, KI-basierte Tools zur automatisierten Textgenerierung zu nutzen, empirisch untersucht. Im zweiten Teil wird ein auf Ko-Kreation ausgerichtetes Lehrkon-zept modelliert, das neben fachlichen auch AI-Literacy-Kompetenzen adressiert. Die Ergebnisse f{\"u}hren zu Handlungsans{\"a}tzen, insbesondere f{\"u}r Wirtschaftsinformatik-Studieng{\"a}nge.}, language = {de} } @inproceedings{MarkgrafDietrichMuelleretal.2023, author = {Markgraf, Klaus and Dietrich, Benjamin and M{\"u}ller, Katja and Flassig, Robert J and Flassig, Peter Michael}, title = {FINEconcepts - Wissenstransfer und Energiesystemoptimierung mithilfe des digitalen Zwillings}, series = {Konferenz: NWK 2023, HS Harz}, booktitle = {Konferenz: NWK 2023, HS Harz}, pages = {428 -- 435}, year = {2023}, abstract = {Climate change, but also geopolitical circumstances, are moving topics such as energy efficiency and renewable energies more and more into the focus of the population, economy , and politics. As a result, the will to optimize new and existing energy systems extends from private individuals to companies and even entire communities. This work describes the development and usage of a new software called FINEconcepts which creates a digital twin of an energy system. This virtual model can then be used to optimize the energy system based on annual costs, CO2 emissions or other relevant criteria such as self-sufficiency. Because all system components, which include renewable technologies as well, can be added as a building block with chosen but changeable parameters, the software allows the user to explore and awaken interest and understanding of technologies that were previously considered too costly, irrelevant, or unrealistic. Implemented projects in small and large companies as well as in residential areas did prove, that the usage of FINEconcepts leads not only to more efficient energy systems by increasing the use of renewable energy, but also increased knowledge and understanding in terms of energy. Besides economics, ecology and security, understanding is an equally important factor in achieving a sustainable energy supply.}, language = {de} } @book{Brasche2023, author = {Brasche, Ulrich}, title = {Climate justice and the Global South - The road to solving climate change}, publisher = {Books on Demand}, isbn = {Print 9783758302381}, pages = {172}, year = {2023}, abstract = {Climate will be decided in the global south Mankind is on a dangerous journey in the Anthropocene. Arriving at a good life for all within planetary boundaries is still possible. But at present, the journey is more likely to lead to an overheating of the Earth. Health and life would then be massively endangered for many living beings - including humans. A positive development is still possible, but it requires a global transformation of the economy and society. The prosperous states and companies are well advised, to respect the interests of the global south and future generations, and to use wisely the considerable financial resources in a cooperation of equals. This book • highlights past carbon emissions and their consequences, • reflects on the main drivers of future emissions, • discusses strategies like green growth, de-growth, • presents market-based instruments like carbon trading and carbon border adjustment and • emphasises the key role played by the emerging countries of the global south. It is not only a matter of justice but furthermore in the interest of the rich countries in the global north to contribute massively to financing a "green leapfrogging" of the global south into a carbon-free prosperity. Failing to achieve it will bring unspeakable losses and suffering to many people all over the planet.}, language = {en} } @incollection{FitzScheeg2023, author = {Fitz, Lukas R. G. and Scheeg, Jochen}, title = {Small Businesses Participating in Digital Platform Ecosystems - A Descriptive Literature Review}, series = {Digital Transformation. PLAIS EuroSymposium 2023. Lecture Notes in Business Information Processing}, booktitle = {Digital Transformation. PLAIS EuroSymposium 2023. Lecture Notes in Business Information Processing}, doi = {10.1007/978-3-031-43590-4_3}, year = {2023}, abstract = {The emergence of digital multi-sided platforms has disrupted day-to-day business in many industries. Nowadays, many small businesses participate in digital platform (DP) ecosystems and act as value creators or complementors. Investigating the small business perspective does not have a rich tradition in platform research yet. In response, this paper presents a systematic literature review (SLR) analyzing the thematic points of focus and highlighting new avenues for information systems and small business research. We find that objectives related to digital transformation, digital strategy- and business model-development, and DP adoption are fundamental topics in the conjunction of small business and DP ecosystems. Based on the findings, an agenda for future research is developed, including propositions for practice-oriented and human-centered approaches fostering sustilience, innovation capabilities and digital leadership competencies in small businesses facing DP ecosystem participation.}, language = {en} } @inproceedings{FitzScheeg2023, author = {Fitz, Lukas R. G. and Scheeg, Jochen}, title = {What is Digital about Digital Innovation? An Ontological Discussion of Digitality}, series = {Konferenz: 29th Americas Conference on Information Systems}, booktitle = {Konferenz: 29th Americas Conference on Information Systems}, publisher = {Panama City, Panama}, year = {2023}, abstract = {"Digital" is a popular adjective for concepts related to electronic, computerized or networked processes in current research and practice. From an ontological-theoretical perspective, the prevalence of digital things triggers the question, how Digitality itself could be conceptualized. This article studies the ontology of Digitality and consequently discusses Digital Innovation (DI) from a new perspective. First, literature on Digitality is analyzed. Based on the findings, an ontological conceptual framework of Digitality (OCFD) is proposed. It describes four layers of Digitality: physical foundations, virtuality, digital culture and world, and digital metaphysics. From a human perspective, requirements to grasp and embody Digitality are highlighted, as well as the expansion of reality. Finally, Digitality is discussed as a paradigm of DI and exemplary digital phenomena are projected onto the OCFD. This paper contributes to DI research and practice through theory-building towards a better understanding of ontological characteristics and practical implications of Digitality in DI.}, language = {en} } @incollection{MingioneKristal2023, author = {Mingione, Michela and Kristal, Samuel}, title = {Brand value co-creation: field emergence, applications, measurement and future research directions}, series = {A Research Agenda for Brand Management in a New Era of Consumerism}, booktitle = {A Research Agenda for Brand Management in a New Era of Consumerism}, publisher = {Edward Elgar Publishing}, address = {Cheltenham, UK}, doi = {10.4337/9781803925516.00013}, pages = {89 -- 106}, year = {2023}, language = {en} } @incollection{LevinaMattern2023, author = {Levina, Olga and Mattern, Saskia}, title = {Ethical and Legal Analysis of Machine Learning Based Systems: A Scenario Analysis of a Food Recommender System}, series = {Recommender Systems: Legal and Ethical Issues}, booktitle = {Recommender Systems: Legal and Ethical Issues}, isbn = {978-3-031-34806-8}, doi = {10.1007/978-3-031-34804-4_9}, pages = {165 -- 185}, year = {2023}, abstract = {Laws are the reflection of the ethical and moral principles of the society. While the use of technology influences users' behavior in a pace that is affected by the technology introduction to the market, legal activities can be driven by the society as the results of such interactions. This scenario analysis- based research focuses on a classic but fictional food recommender system and the ethical issues that might occur from its usage. The recommender system is taken here as an example of machine learning-based systems (MLS) that can often be found in the individual, business and administrative applications. The research compares the existing legal solutions, with the focus on the GDPR legislation, and the discovered ethical issues. The ethical analysis is led along the ALTAI principles suggested by the European Commission, the common good approach as well as the general principles constituted in human rights. While the GDPR-based analysis showed that this data- and privacy-based legislation addressed most of the identified ethical issues, questions related to the common good approach in the context of environment and mobility that arise due to the wide spectrum of the MLS usage require further legal discussion. The application of the two approaches shows that conducting the ethical and legal analysis is beneficial for both the designers of such MLS as well as the legal actors. The findings can enhance the design and functions of a user-facing MLS as well as influence or validate legal activities.}, language = {en} } @book{Brasche2023, author = {Brasche, Ulrich}, title = {Auf dem Weg zu mehr Klimagerechtigkeit Im B{\"u}ndnis mit dem Globalen S{\"u}den Widerst{\"a}nde {\"u}berwinden}, publisher = {oekom-Verlag}, address = {M{\"u}nchen}, isbn = {978-3-98726-045-2}, doi = {10.14512/9783987262746}, pages = {174 Seiten}, year = {2023}, abstract = {Die Menschen sind im Anthropoz{\"a}n auf einer gef{\"a}hrlichen Reise. Das Ziel steht noch nicht fest. Die Ankunft in einem guten Leben f{\"u}r alle innerhalb planetarer Grenzen ist immer noch m{\"o}glich. Aber zurzeit f{\"u}hrt die Reise eher zu einer {\"U}berhitzung der Erde. Gesundheit und Leben w{\"a}ren dann f{\"u}r viele Lebewesen - auch f{\"u}r den Menschen - massiv gef{\"a}hrdet. Das Buch behandelt die Fragen: • Wie sind wir in diese Lage geraten? • In welcher Richtung k{\"o}nnen Auswege liegen? • Welche Hindernisse sind zu {\"u}berwinden? Es werden Strategien abgewogen und einige {\"u}berraschende B{\"u}ndnispartner identifiziert. Geschickt gestaltete M{\"a}rkte k{\"o}nnen helfen, die Erderw{\"a}rmung aufzuhalten. Nur in einer gleicheren und gerechteren Welt k{\"o}nnten alle Menschen gut, aber bescheidener leben. Die Alternative dazu w{\"a}re eine {\"u}bererhitzte, gef{\"a}hrliche Welt. Eine gute Entwicklung ist noch m{\"o}glich. Sie erfordert eine globale Transformation von Wirtschaft und Gesellschaft. Die wohlhabenden Staaten sind gut beraten, die Interessen des „Globalen S{\"u}dens" und der k{\"u}nftigen Generationen zu respektieren - auch durch den klugen Einsatz erheblicher Finanzmittel und eine Kooperation auf Augenh{\"o}he.}, language = {de} } @inproceedings{Levina2023, author = {Levina, Olga}, title = {Operationalizing Ethics for Information Systems Design - A Tool for Ethical Software}, series = {Konferenz: Twenty-ninth Americas Conference on Information Systems (AMCIS), Panama, 2023}, booktitle = {Konferenz: Twenty-ninth Americas Conference on Information Systems (AMCIS), Panama, 2023}, pages = {4}, year = {2023}, abstract = {Propagation of information technology in the increasingly diverse domains, raises question concerning moral implications. While the number of ethical principles in the IT design is growing, they do not necessarily apply to specific products, which means developers and e.g. purchasing agent need to contextualize them for each specific IT product. This paper describes an actionable artifact that allows assessment of ethical non-functional requirements of an information system through operationalization of ethical values, Ethical Software Assessment Tool (ESAT). It is based on a survey of values that are currently considered in research and practice as well as in legal initiatives in IT context. The ethical approach and principles operationalized in ESAT are presented and discussed.}, language = {en} } @article{VegaJechowJamesAetal.2023, author = {Vega, Catherine Perez and Jechow, Andreas and James A., Campbell and Zielinska-Dabkowska, Karolina M. and Hoelker, Franz}, title = {Light pollution from illuminated bridges as a potential barrier for migrating fish-Linking measurements with a proposal for a conceptual model}, series = {Basic and Applied Ecology}, volume = {74}, journal = {Basic and Applied Ecology}, publisher = {Elsevier}, issn = {1618-0089}, doi = {10.1016/j.baae.2023.11.001}, pages = {1 -- 12}, year = {2023}, abstract = {Illuminated bridges have become important assets to navigable aquatic systems. However, if artificial light at night (ALAN) from illuminated bridges reaches aquatic habitats, such as rivers, it can threaten the river's natural heterogeneity and alter the behavioural responses of migratory fish. Here, via a pilot study, we quantified levels of ALAN at illuminated bridges that cross a river and, propose a conceptual model to estimate its potential implications on two migrating fish species with contrasting life histories. Night-time light measurements on the river Spree in Berlin were performed continuously along a transect and in detail at seven illuminated bridges. Photometric data of the pilot study showed rapidly increased and decreased light levels at several illuminated bridges from which we derived several model illumination scenarios. These illumination scenarios and their potential effect on migrating Atlantic salmon smolts (Salmo salar) and European silver eel (Anguilla anguilla) are presented as a conceptual model, considering illuminated bridges as behavioural barriers to fish migration. ALAN's adverse effects on freshwater habitats must be better researched, understood, managed, and properly communicated to develop future sustainable lighting practices and policies that preserve riverscapes and their biodiversity.}, language = {en} } @article{Vollmer2023, author = {Vollmer, Michael}, title = {So weit das Auge tr{\"a}gt}, series = {Physik in unserer Zeit}, volume = {54}, journal = {Physik in unserer Zeit}, number = {5}, publisher = {Wiley}, issn = {1521-3943}, doi = {10.1002/piuz.202301675}, pages = {222 -- 230}, year = {2023}, abstract = {Sichtweiten in der Atmosph{\"a}re reichen von wenigen Metern im Nebel bis zu einigen hundert Kilometern bei extrem guten Fernsichtbedingungen. Die zugrundeliegende Physik geht vom Wahrnehmungskontrast aus. Dieser {\"a}ndert sich mit der Entfernung entlang der Sichtlinie zwischen Objekt und Auge aufgrund von Lichtstreuung und Absorption an den Bestandteilen der Atmosph{\"a}re. Dazu kommt bei der Fernsicht die Refraktion, die es erlaubt, auch {\"u}ber den durch die Kugelform der Erde geometrisch bedingten Horizont hinaus zu sehen.}, language = {de} } @unpublished{WendzelCaviglioneMazurczyketal.2023, author = {Wendzel, Steffen and Caviglione, Luca and Mazurczyk, Wojciech and Mileva, Aleksandra and Dittmann, Jana and Kr{\"a}tzer, Christian and Lamsh{\"o}ft, Kevin and Vielhauer, Claus and Hartmann, Laura and Keller, J{\"o}rg and Neubert, Tom and Zillien, Sebastian}, title = {A Generic Taxonomy for Steganography Methods}, doi = {10.36227/techrxiv.20215373.v1}, year = {2023}, abstract = {A unified understanding of terms and their applicability is essential for every scientific discipline: steganography is no exception. Being divided into several domains (for instance, text steganography, digital media steganography, and network steganography), it is crucial to provide a unified terminology as well as a taxonomy that is not limited to some specific applications or areas. A prime attempt towards a unified understanding of terms was conducted in 2015 with the introduction of a pattern-based taxonomy for network steganography. Six years later, in 2021, the first work towards a pattern-based taxonomy for steganography was proposed. However, this initial attempt still faced several shortcomings, e.g., the lack of patterns for several steganography domains (the work mainly focused on network steganography and covert channels), various terminology issues, and the need of providing a tutorial on how the taxonomy can be used during engineering and scientific tasks, including the paper-writing process.

As the consortium who published this initial 2021-study on steganography patterns, in this paper we present the first comprehensive pattern-based taxonomy tailored to fit all known domains of steganography, including smaller and emerging areas, such as filesystem steganography and cyber-physical systems steganography. Besides, to make our contribution more effective and promote the use of the taxonomy to advance research on steganography, we also provide a thorough tutorial on its utilization.

Our pattern collection is available at https://patterns.ztt.hs-worms.de.

}, language = {en} } @misc{StockhausenJohannsenMaurer2023, author = {Stockhausen, Pablo and Johannsen, Andreas and Maurer, Robert}, title = {Machine-Learning Verfahren f{\"u}r eine nachhaltige Letzte-Meile-Logistik}, year = {2023}, abstract = {Dieser Beitrag entwickelt ein Konzept zur praktischen Umsetzung eines Machine- Learning Verfahrens zum L{\"o}sen von Vehicle Routing Problemen im Kontext einer nachhaltigen "Letzte-Meile"-Logistik, welches durch einen Prototyp umgesetzt und getestet wurde. Der Prototyp basiert auf dem "Reinforcement Learning"-System und verwendet als Algorithmus "REINFORCE mit Baseline". In einer Vergleichsanalyse wurde der Prototyp mit dem bekannten Vertreter Google-OR, anhand von zwei Anwendungsszenarien, verglichen. Der Prototyp {\"u}berzeugt dabei in der Laufzeit und dem Automatismus. Es konnte festgestellt werden, dass eine Verwendung von Lernenden-Systemen f{\"u}r das Vehicle Routing Problem sich bei nur bei einem gr{\"o}ßeren Stoppvolumen und einer erweiterten IT-Infrastruktur empfiehlt.}, language = {de} } @inproceedings{StockhausenJohannsenMaurer2023, author = {Stockhausen, Pablo and Johannsen, Andreas and Maurer, Robert}, title = {Konzeption eines Machine-Learnings-Verfahrens zum L{\"o}sen von Green Vehicle Routing Problemen}, series = {Konferenz: Informatik 2022, Lecture Notes in Informatics (LNI), Bonn, 2022/ Konferenzband: Informatik 2022 Fachtagung vom 26.-30. September 2022, Hamburg/ Band: P-326}, booktitle = {Konferenz: Informatik 2022, Lecture Notes in Informatics (LNI), Bonn, 2022/ Konferenzband: Informatik 2022 Fachtagung vom 26.-30. September 2022, Hamburg/ Band: P-326}, editor = {Krupka, Daniel and Federrath, Hannes and Demmler, Daniel}, publisher = {Gesellschaft f{\"u}r Informatik}, address = {Bonn}, isbn = {978-3-88579-720-3}, pages = {885 -- 897}, year = {2023}, language = {de} } @incollection{WereteckiKristal2024, author = {Weretecki, Patrick and Kristal, Samuel}, title = {Brand Value Co-Creation bei der Deutschen Telekom- Das (neu) entdeckte Potential der regionalen Marketingkommunikation}, series = {Marketing-Management : Konzepte - Instrumente - Unternehmensfallstudien / Philip Kotler, Kevin Lane Keller, Alexander Chernev, Marc Oliver Opresnik ; {\"U}bersetzung: Anke Harrer, Oberschleißheim - 16. aktualisierte Aufl. - M{\"u}nchen: Pearson, 2023}, booktitle = {Marketing-Management : Konzepte - Instrumente - Unternehmensfallstudien / Philip Kotler, Kevin Lane Keller, Alexander Chernev, Marc Oliver Opresnik ; {\"U}bersetzung: Anke Harrer, Oberschleißheim - 16. aktualisierte Aufl. - M{\"u}nchen: Pearson, 2023}, publisher = {Pearson}, isbn = {978-3-86894-443-3}, pages = {363 -- 368}, year = {2024}, language = {de} } @article{BraubachJander2023, author = {Braubach, Lars and Jander, Kai}, title = {1. Introduction}, series = {International Journal of Parallel, Emergent and Distributed Systems}, volume = {38}, journal = {International Journal of Parallel, Emergent and Distributed Systems}, number = {6}, publisher = {Taylor \& Francis}, issn = {1744-5779}, doi = {10.1080/17445760.2023.2251386}, pages = {459 -- 460}, year = {2023}, language = {en} } @inproceedings{Markgraf2024, author = {Markgraf, Klaus}, title = {Entwicklung eines Tools zur spezifischen, lastgangbasierten Eigenverbrauchsoptimierung mittels PV-Leistungsprognose}, series = {Konferenz: 18. Symposium Energieinnovation, 2024, Graz/Austria}, booktitle = {Konferenz: 18. Symposium Energieinnovation, 2024, Graz/Austria}, doi = {10.6084/m9.figshare.25610976}, pages = {1 -- 10}, year = {2024}, abstract = {The German government's initiative to cover 80\% of the gross electricity supply with renewable energies by 2050 brings considerable ecological benefits, but also poses several challenges. One of these challenges is the growing number of photovoltaic systems (PV systems), which, due to their high feed-in power, already pose a risk to the security of the electricity distribution grid during long periods of sunny weather. To counteract this, active research is being carried out in the field of PV power forecasting. This research is primarily aimed at providing the grid operator with a predicted power output, which enables a longer planning horizon and thus increases the operational grid security. However, the considerable annual electricity consumption of private households and the increasing spread of PV systems for self-consumption show that the energy behavior of households, especially self-consumption, also influences grid security. Additionally, households have an incentive to boost their self-consumption because the cost of drawing each kilowatt-hour from the grid is substantially higher than the compensation received for injecting an equivalent amount of energy back into the grid. However, as of now, there is no software available that easily enables households to tailor the usage patterns of their electrical appliances according to a photovoltaic (PV) forecast. The project described here aims to close this gap by creating such software. Various PV forecasting models are used and tested for their suitability for this purpose. A self-generated optimization process is implemented in this project to optimize the consumer configuration based on the PV forecasts. The here-developed tool enables the user to enter parameters for his PV system and the specific load profiles of his electrical appliances. Based on this data, the optimization algorithm determines a consumption plan with a forecast horizon until the end of the next day that maximizes the user's self-consumption. To validate the tool, the optimization process is carried out over a period of 60 days using a predefined scenario and the results are compared with a scenario in which the electrical appliances are intuitively operated at midday. The analysis of these results ultimately shows the potential impact of such a tool on the economic efficiency of private households and the supply stability.}, language = {en} } @article{AyalonAvisarJechowetal.2024, author = {Ayalon, Inbal and Avisar, Dror and Jechow, Andreas and Levy, Oren}, title = {Corals nitrogen and carbon isotopic signatures alters under Artificial Light at Night (ALAN)}, series = {The Science of The Total Environment}, journal = {The Science of The Total Environment}, number = {920}, publisher = {Elsevier}, doi = {10.1016/j.scitotenv.2024.170513}, year = {2024}, abstract = {This study examines the impact of Artificial Light at Night (ALAN) on two coral species, Acropora eurystoma and Pocillopora damicornis, in the Gulf of Aqaba/Eilat Red Sea, assessing their natural isotopic responses to highlight changes in energy and nutrient sourcing due to sensory light pollution. Our findings indicate significant disturbances in photosynthetic processes in Acropora eurystoma, as evidenced by shifts in δ13C values under ALAN, pointing to alterations in carbon distribution or utilization. In Pocillopora damicornis, similar trends were observed, with changes in δ13C and δ15N values suggesting a disruption in its nitrogen cycle and feeding strategies. The study also uncovers species-specific variations in heterotrophic feeding, a crucial factor in coral resilience under environmental stress, contributing to the corals' fixed carbon budget. Light measurements across the Gulf demonstrated a gradient of light pollution which possess the potential of affecting marine biology in the region. ALAN was found to disrupt natural diurnal tentacle behaviors in both coral species, crucial for prey capture and nutrient acquisition, thereby impacting their isotopic composition and health. Echoing previous research, our study underscores the need to consider each species' ecological and physiological contexts when assessing the impacts of anthropogenic changes. The findings offer important insights into the complexities of marine ecosystems under environmental stress and highlight the urgency of developing effective mitigation strategies.}, language = {en} } @article{HascheKaraschewskiCreutzburg2023, author = {Hasche, Eberhard and Karaschewski, Oliver and Creutzburg, Reiner}, title = {iPhone12 imagery in scene-referred computer graphics pipelines}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, doi = {10.2352/EI.2023.35.3.MOBMU-350}, pages = {350-1 -- 350-14}, year = {2023}, abstract = {With the release of the Apple iPhone 12 Pro Max in 2020, various features were integrated that make it attractive as a recording device for scene-related computer graphics pipelines. The captured Apple RAW images have a much higher dynamic range than the standard 8-bit images. Since a scene-based workflow naturally has an extended dynamic range (HDR), the Apple RAW recordings can be well integrated. To correctly integrate the iPhone 12 pro Apple RAW data into a scene-related workflow, two command-line software solutions, among others, are dcraw and rawtoaces. In this paper, we concentrate on dcraw. dcraw offers the possibility to export RAW images directly to ACES2065-1. Different images recorded under different lighting conditions are examined to determine which options for the dcraw development produce the best results. Images from five different lighting situations like D65, D60, D55, D50, and 2980K, are examined. The DNG files are developed using different methods within dcraw. The values of the recorded ColorChecker24 patches are compared to reference values derived from BabelColor [1] and ACES [2].}, language = {en} } @article{JasterCreutzburgHasche2023, author = {Jaster, Daniel and Creutzburg, Reiner and Hasche, Eberhard}, title = {A qualitative study of LiDAR technologies and their application areas}, series = {Electronic Imaging}, volume = {35}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, doi = {10.2352/EI.2023.35.3.MOBMU-368}, pages = {368-1 -- 368-15}, year = {2023}, abstract = {In this work, the most relevant 3D LiDAR technologies and their applications in 2022 were investigated. For this purpose, applications of LiDAR systems were classified into the typical application areas "3D modeling", "smart city", "robotics", "smart automotive" and "consumer goods". The investigation has shown that neither "mechanical" LiDAR technologies, nor so-called solid-state LiDAR technologies, nor "hybrid" LiDAR technologies can be evaluated as optimal for the typical application areas. In none of the application areas could all of the elaborated requirements be met. However, the "hybrid" LiDAR technologies such as sequential MEMS LiDAR technology and sequential flash LiDAR technology proved to be among the most suitable for most typical application areas. However, other technologies also tended to be suitable for individual typical application areas. Finally, it was found that several of the LiDAR technologies investigated are currently equally suitable for some typical application areas. To evaluate the suitability, concrete LiDAR systems - of different technologies and properties - were compared with the specific requirements of exemplary applications of an application area. The results of the investigation provide an orientation as to which LiDAR technology is promising for which application area.}, language = {en} } @article{MalekiMohammadi2023, author = {Maleki, Maniya and Mohammadi, Mahdieh}, title = {Velocity and pressure functions of an oscillating flow in a circular Hele-Shaw cell}, series = {Iranian Journal of Physics Research}, volume = {22}, journal = {Iranian Journal of Physics Research}, number = {1}, publisher = {Physics Society of Iran}, doi = {10.47176/ijpr.22.1.81304}, pages = {113 -- 120}, year = {2023}, abstract = {In this study, we have investigated the form of velocity and pressure functions of a fluid oscillating between two parallel glass sheets that form a circular Hele-Shaw cell. The flow has been considered to be radial, incompressible and laminar. The time-dependent Navier-Stokes equation has been solved in cylindrical coordinates using Fourier transform, and the oscillating flow velocity across the thickness of the cell has been obtained at different times. The flow velocity function in the unsteady state is related to the vertical component of the coordinates in the form of parabolic functions and also to the inverse of the radial component. The time dependence appears as a simple harmonic with a frequency equal to the oscillation frequency. The velocity of the flow is maximum at the middle of the cell along its height and gradually decreases from the middle towards the top or bottom plane and reaches zero. Pressure does not depend on the height and changes logarithmically with the radius. The dependence of pressure on time is also a simple harmonic with the external frequency, but it has a phase shift with respect to the velocity.}, language = {en} } @article{TrittelPuzyrevStannarius2024, author = {Trittel, Torsten and Puzyrev, Dmitry and Stannarius, Ralf}, title = {Platonic solids bouncing on a vibrating plate}, series = {Physical Review E}, volume = {109}, journal = {Physical Review E}, number = {3}, publisher = {American Physical Society}, doi = {10.1103/PhysRevE.109.034903}, year = {2024}, abstract = {The energy transfer between bouncing particles and rigid boundaries during impacts is crucially influenced not only by restitution coefficients of the material but also by particle shapes. This is particularly important when such particles are mechanically agitated with vibrating plates. Inertial measurement units are able to measure all acceleration and rotational velocity components of an object and store these data for subsequent analysis. We employ them to measure the dynamics of cubes and icosahedra on vibrating plates to study the efficiency of energy transfer into the individual degrees of freedom (DOFs) of the excited object. The rotational DOFs turn out to be much less excited than the vertical translational motion. Most remarkably, there is only little difference between the two Platonic solids in both the absolute energies and the energy partition ratios.}, language = {en} } @article{LachowskiHammermeisterHalenzetal.2023, author = {Lachowski, Krzysztof and Hammermeister, Florian and Halenz, Bastian and Lieckefett, Florian and G{\"o}tze, Thomas and Prill, Robert and Becker, Roland}, title = {The Patellostabilometer: A New Device for Quantification of Mediolateral Patella Displacement}, series = {Sensors}, journal = {Sensors}, number = {23 (3)}, publisher = {MDPI}, doi = {https://doi.org/10.3390/s23031274}, year = {2023}, abstract = {Mediolateral patella displacement is of interest for diagnostics and clinically relevant research questions. Apart from manual testing, no standardized method is currently available. Proper quantification of patella mobility is necessary to better understand pathologies at the patellofemoral joint. Patella mobility was assessed in 25 healthy individuals using a Patellostabilometer, a new prototype instrument for quantification of the mediolateral patella displacement. The participants underwent measurements of the mediolateral displacement three times using the Patellostabilome- ter. A maximal force of 10 N was applied for patella movement. Additionally, leg length and circumference of the knee, upper- and lower-leg were measured. Lateral patella displacement of 18.27 ± 3.76 mm (range 15.85-20.64 mm, interquartile range (IQR) of 4.79) was measured. The medial patella displacement showed 24.47 ± 6.59 mm (range 19.29-29.76 mm, IQR of 10.47). The test-retest measurement error was 2.32 ± 1.76 mm (IQR of 2.38 mm), with five outliers. There was greater test-retest variability between the measurements of the medial displacement compared to the lateral one. The test-retest variability reached 7\% of the patella displacement. Other parameters provided no significant correlations. Based on the natural patellofemoral mobility, a precise and clinically relevant quantification of patella mobility is allowed.}, language = {en} } @article{RizunRevinaEdelmann2023, author = {Rizun, Nina and Revina, Aleksandra and Edelmann, Noella}, title = {Application of Text Analytics in Public Service Co-Creation: Literature Review and Research Framework}, series = {DG.O 2023: The 24th Annual International Conference on Digital Government Research}, journal = {DG.O 2023: The 24th Annual International Conference on Digital Government Research}, publisher = {Association for Computing Machinery}, doi = {10.1145/3598469.3598471}, pages = {12 -- 22}, year = {2023}, abstract = {The public sector faces several challenges, such as a number of external and internal demands for change, citizens' dissatisfaction and frustration with public sector organizations, that need to be addressed. An alternative to the traditional top-down development of public services is co-creation of public services. Co-creation promotes collaboration between stakeholders with the aim to create better public services and achieve public values. At the same time, data analytics has been fuelled by the availability of immense amounts of textual data. Whilst both co-creation and TA have been used in the private sector, we study existing works on the application of Text Analytics (TA) techniques on text data to support public service co-creation. We systematically review 75 of the 979 papers that focus directly or indirectly on the application of TA in the context of public service development. In our review, we analyze the TA techniques, the public service they support, public value outcomes, and the co-creation phase they are used in. Our findings indicate that the TA implementation for co-creation is still in its early stages and thus still limited. Our research framework promotes the concept and stimulates the strengthening of the role of Text Analytics techniques to support public sector organisations and their use of co-creation process. From policy-makers' and public administration managers' standpoints, our findings and the proposed research framework can be used as a guideline in developing a strategy for the designing co-created and user-centred public services.}, language = {en} } @article{Guterding2023, author = {Guterding, Daniel}, title = {Sparse Modeling Approach to the Arbitrage-Free Interpolation of Plain-Vanilla Option Prices and Implied Volatilities}, series = {Risks}, journal = {Risks}, number = {11 (5)}, publisher = {MDPI AG}, doi = {https://doi.org/10.3390/risks11050083}, pages = {24}, year = {2023}, abstract = {We present a method for the arbitrage-free interpolation of plain-vanilla option prices and implied volatilities, which is based on a system of integral equations that relates terminal density and option prices. Using a discretization of the terminal density, we write these integral equations as a system of linear equations. We show that the kernel matrix of this system is, in general, ill-conditioned, so that it cannot be solved for the discretized density using a naive approach. Instead, we construct a sparse model for the kernel matrix using singular value decomposition (SVD), which allows us not only to systematically improve the condition number of the kernel matrix, but also determines the computational effort and accuracy of our method. In order to allow for the treatment of realistic inputs that may contain arbitrage, we reformulate the system of linear equations as an optimization problem, in which the SVD-transformed density minimizes the error between the input prices and the arbitrage-free prices generated by our method. To further stabilize the method in the presence of noisy input prices or arbitrage, we apply an 𝐿1-regularization to the SVD-transformed density. Our approach, which is inspired by recent progress in theoretical physics, offers a flexible and efficient framework for the arbitrage-free interpolation of plain-vanilla option prices and implied volatilities, without the need to explicitly specify a stochastic process, expansion basis functions or any other kind of model. We demonstrate the capabilities of our method in a number of artificial and realistic test cases.}, language = {en} } @article{StannariusHarth2023, author = {Stannarius, Ralf and Harth, Kirsten}, title = {The structure of disintegrating defect clusters in smectic C freely suspended films}, series = {Soft Matter}, journal = {Soft Matter}, number = {19}, publisher = {Royal Society of Chemistry}, doi = {https://doi.org/10.1039/d3sm00808h}, pages = {6109 -- 6115}, year = {2023}, abstract = {Disclinations or disclination clusters in smectic C freely suspended films with topological charges larger than one are unstable. They disintegrate, preferably in a spatially symmetric fashion, into single defects with individual charges of +1, which is the smallest positive topological charge allowed in polar vector fields. While the opposite process of defect annihilation is well-defined by the initial defect positions, disintegration starts from a singular state and the following scenario including the emerging regular defect patterns must be selected by specific mechanisms. We analyze experimental data and compare them with a simple model where the defect clusters adiabatically pass quasi-equilibrium solutions in one-constant approximation. It is found that the defects arrange in geometrical patterns that correspond very closely to superimposed singular defect solutions, without additional director distortions. The patterns expand by affine transformations where all distances between individual defects scale with the same time-dependent scaling factor proportional to the square-root of time.}, language = {en} } @article{XuShimizuGuterdingetal.2023, author = {Xu, Han-Xiang and Shimizu, Makoto and Guterding, Daniel and Otsuki, Junya and Jeschke, Harald O.}, title = {Pressure evolution of electronic structure and magnetism in the layered van der Waals ferromagnet CrGeTe3}, series = {Physical Review B}, journal = {Physical Review B}, number = {Vol. 108}, publisher = {American Physical Society}, doi = {https://doi.org/10.1103/PhysRevB.108.125142}, pages = {15}, year = {2023}, abstract = {Layered van der Waals ferromagnets, which preserve their magnetic properties down to exfoliated monolayers, are fueling an abundance of fundamental research and nanoscale device demonstration. CrGeTe3 is a prime example of this class of materials. Its temperature-pressure phase diagram features an insulator-to-metal transition and a significant increase in ferromagnetic Curie-Weiss temperatures upon entering the metallic state. We use density functional theory to understand the magnetic exchange interactions in CrGeTe3 at ambient and elevated pressures. We calculate Heisenberg exchange couplings, which provide the correct ferromagnetic ground state and explain the experimentally observed pressure dependence of magnetism in CrGeTe3. Furthermore, we combine density functional theory with dynamical mean-field theory to investigate the effects of electronic correlations and the nature of the high-pressure metallic state in CrGeTe3.}, language = {en} } @article{KloppTrittelHarthetal.2023, author = {Klopp, Christoph and Trittel, Torsten and Harth, Kirsten and Stannarius, Ralf}, title = {Coalescence of biphasic droplets embedded in free standing smectic A films}, series = {Soft Matter}, volume = {20}, journal = {Soft Matter}, number = {5}, publisher = {Royal Society of Chemistry}, issn = {1744-683X}, doi = {10.1039/d3sm01549a}, pages = {1036 -- 1046}, year = {2023}, abstract = {We investigate micrometer-sized flat droplets consisting of an isotropic core surrounded by a nematic rim in freely suspended smectic A liquid-crystal films. In contrast to purely isotropic droplets which are characterized by a sharp edge and no long-range interactions, the nematic fringe introduces a continuous film thickness change resulting in long-range mutual attraction of droplets. The coalescence scenario is divided in two phases. The first one consists in the fusion of the nematic regions. The second phase involves the dissolution of a thin nematic film between the two isotropic cores. The latter has many similarities with the rupture of thin liquid films between droplets coalescing in an immiscible viscous liquid. Coalescence of biphasic droplets in free-standing smectic films is controlled in part by the rupture of a thin nematic membrane separating the isotropic droplet cores.}, language = {en} } @article{NagelSchminder2023, author = {Nagel, Michael and Schminder, Christian}, title = {Sachbezogenes Verhandeln als Methode im Zielbildungsprozess von innovationsorientierten Public Private Partnerships.}, series = {Ideen- und Innovationsmanagement}, journal = {Ideen- und Innovationsmanagement}, number = {2}, editor = {Erich Schmidt Verlag,}, publisher = {Erich Schmidt Verlag GmbH \& Co}, issn = {2198-3151}, doi = {10.37307/j.2198-3151.2022.02.07}, pages = {72 -- 77}, year = {2023}, language = {de} } @article{Johannsen2023, author = {Johannsen, Andreas}, title = {ERP-Einf{\"u}hrung - Bewertung einer Standardimplementierungsmethode f{\"u}r SAP Business One}, series = {ERP Management}, journal = {ERP Management}, publisher = {GITO Verlag}, issn = {1860-6725}, pages = {19 -- 22}, year = {2023}, language = {de} } @article{KuznetsovFroripSuenteretal.2023, author = {Kuznetsov, Arthur and Frorip, Aleksandr and S{\"u}nter, Alar and Kasvand, Nensi and Korsakov, Vadim and Konoplev, Georgii and Stepanova, Oksana and Rusalepp, Linda and Anton, Dea and P{\"u}ssa, T{\~o}nu and Roasto, Mati and Abramova, Liubov and Kozin, Andrey and Toom, Lauri and Hirsch, S{\"o}ren and Mukhin, Nikolay}, title = {Fast Protein and Metabolites (Nucleotides and Nucleosides) Liquid Chromatography Technique and Chemical Sensor for the Assessment of Fish and Meat Freshness}, series = {Chemosensors}, journal = {Chemosensors}, number = {1/2023 / Band 11}, editor = {mdpi,}, publisher = {MDPI}, issn = {2227-9040}, doi = {10.3390/chemosensors11010069}, pages = {69}, year = {2023}, abstract = {Fast protein and metabolite liquid chromatography (FPLMC) was introduced years ago to enable the easy separation of high-molecular compounds such as proteins from small molecules and the identification of the low-molecular substances. In this paper, the method is applied for the rapid evaluation of freshness and monitoring the aging of animal meat and fish. A novel chromatographic sensor was developed with a deep UV LED-based photometric detection unit (255-265 nm), an original flow cuvette and registration scheme; the processing of a chromatogram with the sensor takes approximately 15 min. Strict isochronism between the elution of ATP metabolites, mainly hypoxanthine (Hx) and inosine monophosphate (IMP), and the time of maturation of meat or fish, was discovered. A new freshness index H* = [Hx]/[IMP] was introduced, which is proportional to the instrumental delay time in the FPMLC chromatograms: the H* index < 0.5 indicates the presence of inosine monophosphate (IMP) and the high quality of the meat or fish. Reasonably strong correlations were revealed between data obtained by FPMLC and total volatile basic nitrogen TVB-N (for fish) or volatile fatty acids VFA (for meat) content. Moreover, putative nucleotide salvage and an increase in the concentration of IMP were observed in fish after heat treatment using the FPMLC sensor and NMR technique.}, language = {en} } @article{KristalWeretecki2024, author = {Kristal, Samuel and Weretecki, Patrick}, title = {Social first? Not always! Brand co-creation through regional marketing at Deutsche Telekom}, series = {Transfer: Zeitschrift f{\"u}r Kommunikation \& Markenmanagement}, volume = {70}, journal = {Transfer: Zeitschrift f{\"u}r Kommunikation \& Markenmanagement}, number = {1}, publisher = {New Business Verlag}, pages = {67 -- 71}, year = {2024}, abstract = {Deutsche Telekom, one of the world's leading integrated telecommunications companies, has recently shifted its focus in event marketing to prioritize more personal co-creational communication on regional occasions, rather than largescale events. This paper outlines the three-part LAW-principle that Deutsche Telekom follows in its brand communication in Germany, providing examples for each of the three pillars. The co-creation resulting from brand communication is changing the role of marketing and brand practitioners. They are now required to negotiate with various stakeholders.}, language = {en} } @article{KloppTrittelHarthetal.2022, author = {Klopp, Christoph and Trittel, Torsten and Harth, Kirsten and Stannarius, Ralf}, title = {Smectic free-standing films under fast lateral compression}, series = {Soft Matter}, journal = {Soft Matter}, publisher = {Royal Society of Chemistry}, issn = {1744-683X, 1744-6848}, doi = {10.1039/D1SM01207J}, pages = {146 -- 155}, year = {2022}, abstract = {Smectic films in a collapsing catenoid develop spontaneous wrinkling patterns like solid sheets. Smectic freely-suspended films can wrinkle like solid sheets. This has been demonstrated earlier with shape-fluctuating smectic bubbles. Here, we exploit the collapse of smectic catenoid films with a central equatorial film to expose the latter to rapid lateral compression. Wrinkle formation is observed in the planar film and the thickness dependence of the undulation wavelength is measured. In addition to the central film, its border undergoes an undulation instability as well.}, language = {en} } @article{ChaurasiaGoeckeDe2022, author = {Chaurasia, Prashtan Kumar and Goecke, Sven-Frithjof and De, Amitava}, title = {Real-time monitoring of temperature field, metal transfer and cooling rate during gas metal arc-directed energy deposition}, series = {Science and Technology of Welding and Joining}, journal = {Science and Technology of Welding and Joining}, number = {27}, publisher = {Taylor \& Francis}, issn = {13621718}, doi = {10.1080/13621718.2022.2080447}, pages = {512 -- 521}, year = {2022}, language = {en} } @article{Blasek2022, author = {Blasek, Katrin}, title = {Auskunfteiwesen und Kreditscoring in unruhigem Fahrwasser}, series = {Zeitschrift f{\"u}r Datenschutz}, journal = {Zeitschrift f{\"u}r Datenschutz}, number = {8}, publisher = {C.H.Beck}, issn = {2192-5593}, pages = {433 -- 438}, year = {2022}, language = {de} } @article{TumarkinTyurninaMukhinetal.2022, author = {Tumarkin, Andrey and Tyurnina, Natalya and Mukhin, Nikolay and Tyurnina, Zoya and Sinelshchikova, Olga and Gagarin, Alexander and Sapego, Eugeny and Kretser, Yriy}, title = {Glass-ceramic ferroelectric composite material BaTiO3/KFeSi for microwave applications}, series = {Composite Structures}, volume = {281}, journal = {Composite Structures}, publisher = {Elsevier}, issn = {0263-8223}, pages = {1 -- 10}, year = {2022}, abstract = {Glass-ceramic composites consisting of potassium-iron-silicate glass and barium titanate mixed in various proportions were successfully synthesized by low-temperature sintering. The crystal structure of the obtained composite samples, the porosity and the microhardness were studied by the X-ray diffraction, the electron microscopy, the weight method, and the Vickers method. Electrical characteristics (dielectric permittivity, tunability and losses) of as-prepared and annealed in oxygen medium samples were investigated at microwaves. According to structural analysis, the synthesized samples are a mixture of KFeSi glass, ferroelectric BaTiO3, and dielectric barium polytitanates; the ratio of the latter determines the electrical properties of the composites. Depending on the content of barium titanate, the studied composite samples show a permittivity from 50 to 270 with a dielectric loss level of 0,1-0,02 in frequency range from 3 to 10 GHz. Annealing of composite samples in an oxygen-containing environment leads to an increase in their dielectric permittivity and tunability by 10-25\% and a twofold decrease in dielectric loss.}, language = {en} } @article{KantJohannsen2021, author = {Kant, Daniel and Johannsen, Andreas}, title = {Sicherer Datenaustausch in Kooperationen - „Kooperation first - Sicherheit second?"}, series = {Mittelstand-Digital Magazin - Wissenschaft trifft Praxis}, journal = {Mittelstand-Digital Magazin - Wissenschaft trifft Praxis}, number = {2021/16}, publisher = {Begleitforschung Mittelstand-Digital}, pages = {43 -- 48}, year = {2021}, language = {de} } @article{HascheKaraschewskiCreutzburg2022, author = {Hasche, Eberhard and Karaschewski, Oliver and Creutzburg, Reiner}, title = {RAW images and videos for 30K panoramic projection using the ACES workflow}, series = {Electronic Imaging}, journal = {Electronic Imaging}, number = {34}, editor = {Society for Imaging Science and Technology,}, publisher = {Society for Imaging Science and Technology}, issn = {2470-1173}, doi = {10.2352/EI.2022.34.3.MOBMU-400}, pages = {400-1 -- 400-13}, year = {2022}, language = {en} } @article{RevinaBuzaMeister2020, author = {Revina, Aleksandra and Buza, Krisztian and Meister, Vera G.}, title = {IT Ticket Classification: The Simpler, the Better}, series = {IEEE Access}, volume = {8}, journal = {IEEE Access}, publisher = {Institute of Electrical and Electronics Engineers (IEEE)}, issn = {2169-3536}, doi = {10.1109/ACCESS.2020.3032840}, pages = {193380 -- 193395}, year = {2020}, language = {en} } @article{Sasaki2021, author = {Sasaki, Felix}, title = {K{\"u}nstliche Intelligenz in der Ausbildung von Wissensarbeiterinnen und Wissensarbeitern}, series = {API : Ausbilden, Publizieren, Informieren - studentisches Magazin der HAW Hamburg}, volume = {2}, journal = {API : Ausbilden, Publizieren, Informieren - studentisches Magazin der HAW Hamburg}, number = {1}, publisher = {Hamburg University Press}, issn = {2699-6693}, doi = {10.15460/apimagazin.2021.2.1.65}, pages = {1 -- 16}, year = {2021}, language = {de} } @article{Levina2021, author = {Levina, Olga}, title = {Von Ethik zu Recht : Der AI Act und seine Bedeutung f{\"u}r die Gestaltung von algorithmischen Systemen}, series = {Informatik aktuell}, journal = {Informatik aktuell}, publisher = {Alkmene Verlag}, issn = {2511-7564}, year = {2021}, language = {de} } @article{DueckBeckSteckelberg2022, author = {D{\"u}ck, M. and Beck, Eberhard and Steckelberg, A.}, title = {Literaturrecherche zur Leitliniengetreue Behandlung von Brustkrebspatientinnen}, series = {Geburtshilfe und Frauenheilkunde}, volume = {82}, journal = {Geburtshilfe und Frauenheilkunde}, number = {6}, publisher = {Thieme}, doi = {10.1055/s-0042-1749035}, pages = {631}, year = {2022}, language = {de} } @article{SchraderTetzlaffBecketal.2020, author = {Schrader, Thomas and Tetzlaff, Laura and Beck, Eberhard and Mindt, Sebastian and Geiss, Friederike and Hauser, Katarina and Franken, Christian}, title = {Die {\"A}hnlichkeit von Medikamentennamen als m{\"o}gliche Ursache von Verwechslungen - eine Untersuchung von Daten aus der ambulanten Versorgung}, series = {Zeitschrift f{\"u}r Evidenz, Fortbildung und Qualit{\"a}t im Gesundheitswesen}, journal = {Zeitschrift f{\"u}r Evidenz, Fortbildung und Qualit{\"a}t im Gesundheitswesen}, publisher = {Elsevier}, issn = {1865-9217 (Print)}, doi = {10.1016/j.zefq.2020.01.006}, year = {2020}, language = {de} } @article{FachetWitteFlassigetal.2020, author = {Fachet, Melanie and Witte, Carina and Flassig, Robert J. and Rihko-Struckmann, Liisa K. and McKie-Krisberg, Zaid and Polle, J{\"u}rgen E. W. and Sundmacher, Kai}, title = {Reconstruction and analysis of a carbon-core metabolic network for Dunaliella salina}, series = {BMC Bioinformatics}, volume = {21}, journal = {BMC Bioinformatics}, number = {1}, publisher = {BioMed Central}, doi = {10.1186/s12859-019-3325-0}, year = {2020}, language = {en} } @article{WhiskerdKoertgeJuergensetal.2020, author = {Whiskerd, Nicholas and K{\"o}rtge, Nicklas and J{\"u}rgens, Kris and Ezennaya-Gomez, Salatiel and Vielhauer, Claus and Dittmann, Jana and Hildebrandt, Mario}, title = {Keystroke biometrics in the encrypted domain: a first study on search suggestion functions of web search engines}, series = {EURASIP Journal on Information Security}, journal = {EURASIP Journal on Information Security}, number = {2020:2}, publisher = {Springer}, doi = {10.1186/s13635-020-0100-8}, year = {2020}, language = {en} } @article{GieslerPeschWeirauchetal.2020, author = {Giesler, Jasper and Pesch, Georg R. and Weirauch, Laura and Schmidt, Marc-Peter and Th{\"o}ming, Jorg and Baune, Michae}, title = {Polarizability-Dependent Sorting of Microparticles Using Continuous-Flow Dielectrophoretic Chromatography with a Frequency Modulation Method}, series = {Micromachines}, volume = {11}, journal = {Micromachines}, number = {1}, publisher = {MDPI}, doi = {10.3390/mi11010038}, pages = {38}, year = {2020}, language = {en} } @article{VollmerMoellmann2020, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Unsichtbares sichtbar gemacht: Infrarotkameras f{\"u}r Smartphones}, series = {Physik in unserer Zeit}, volume = {51}, journal = {Physik in unserer Zeit}, number = {1}, publisher = {Wiley-VCH}, doi = {https://doi.org/10.1002/piuz.201901551}, pages = {29 -- 35}, year = {2020}, language = {de} } @article{JohannsenFelixFriedrich2020, author = {Johannsen, Andreas and Felix Friedrich, Eifert}, title = {Cloud-Kooperationsf{\"a}higkeit f{\"u}r KMU Digitales Benchmarking f{\"u}r IT-Anbieter und IT-Anwender}, series = {ERP Management}, volume = {16}, journal = {ERP Management}, number = {1}, publisher = {GITO Verlag}, issn = {1860-6725}, pages = {41 -- 43}, year = {2020}, language = {de} } @article{MoellmannRegehlyVollmer2020, author = {M{\"o}llmann, Klaus-Peter and Regehly, Martin and Vollmer, Michael}, title = {Spectroscopy and microscopy analysis of semiconductor lasers in student laboratories}, series = {European Journal of Physics}, volume = {41}, journal = {European Journal of Physics}, number = {2}, publisher = {Institute of Physics Publishing (IOP); European Physical Society}, doi = {10.1088/1361-6404/ab5075}, pages = {025302}, year = {2020}, language = {en} } @article{VollmerMoellmann2020, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Wenn Licht die Biege macht}, series = {Physik in unserer Zeit}, volume = {51}, journal = {Physik in unserer Zeit}, number = {1}, publisher = {Wiley-VCH}, doi = {https://doi.org/10.1002/piuz.202001569}, pages = {46 -- 47}, year = {2020}, language = {de} } @article{LuebckeBraenzelDehlingeretal.2019, author = {L{\"u}bcke, Andrea and Braenzel, Julia and Dehlinger, Aurelie and Schn{\"u}rer, Matthias and Stiel, Holger and Guttmann, Peter and Rehbein, Stefan and Schneider, Gerd and Werner, Stephan and Kemmler, Roman and Ritter, Sebastian and Raugust, Marc and Wende, Torsten and Behrendt, Marcel and Regehly, Martin}, title = {Soft X-ray nanoscale imaging using a sub-pixel resolution charge coupled device (CCD) camera}, series = {Review of Scientific Instruments}, volume = {90}, journal = {Review of Scientific Instruments}, number = {4}, publisher = {American Institute of Physics}, doi = {10.1063/1.5053593}, year = {2019}, language = {en} } @article{AndrzejewskiFellmannBecketal.2019, author = {Andrzejewski, Dennis and Fellmann, Michael and Beck, Eberhard and Breischwerdt, R{\"u}diger}, title = {Entscheidungsmodellierung in der Senologie - aktueller Stand und zuk{\"u}nftige Forschung}, series = {Senologie - Zeitschrift f{\"u}r Mammadiagnostik und -therapie}, volume = {16}, journal = {Senologie - Zeitschrift f{\"u}r Mammadiagnostik und -therapie}, number = {02}, publisher = {Thieme}, doi = {10.1055/s-0039-1687937}, pages = {e2}, year = {2019}, language = {de} } @article{JohannsenKunkelKunkel2019, author = {Johannsen, Andreas and Kunkel, Olga and Kunkel, Carsten}, title = {Digitalisierung first - Besch{\"a}ftigtendatenschutz second?}, series = {Wissenschaft trifft Praxis}, journal = {Wissenschaft trifft Praxis}, number = {11}, publisher = {Barbara Budrich}, issn = {2198-8544}, pages = {56 -- 65}, year = {2019}, language = {de} } @article{FlassigMangoldWoelfer2019, author = {Flassig, Robert J. and Mangold, Michael and W{\"o}lfer, Christian}, title = {Towards Design of Self-Organizing Biomimetic Systems}, series = {Advanced Biosystems}, volume = {3}, journal = {Advanced Biosystems}, number = {6}, publisher = {Wiley Vch}, issn = {2366-7478}, doi = {/10.1002/adbi.201800320}, pages = {1800320}, year = {2019}, language = {en} } @article{KellerHoll2019, author = {Keller, Ivo and Holl, Friedrich-L.}, title = {Kriterien: Wie Security auch f{\"u}r Safety verantwortlich wird}, series = {Datenschutz und Datensicherheit - DuD}, volume = {43}, journal = {Datenschutz und Datensicherheit - DuD}, number = {7}, publisher = {Gabler Verlag}, issn = {1614-0702}, doi = {10.1007/s11623-019-1138-y}, pages = {426 -- 433}, year = {2019}, language = {de} } @article{JanderBraubachPokahr2019, author = {Jander, Kai and Braubach, Lars and Pokahr, Alexander}, title = {Practical Defense-in-depth Solution for Microservice Systems}, series = {Journal of Ubiquitous Systems and Pervasive Networks}, volume = {11}, journal = {Journal of Ubiquitous Systems and Pervasive Networks}, number = {1}, publisher = {International Association for Sharing Knowledge and Sustainability}, doi = {10.5383/juspn.11.01.003}, pages = {17 -- 25}, year = {2019}, language = {en} } @article{GoeckeMakwanaShomeetal.2019, author = {Goecke, Sven-Frithjof and Makwana, Pinaac and Shome, Mahadev and De, Amitava}, title = {Probing joint strength and distortion in gas metal arc lap joining of aluminum and steel sheets}, series = {Welding in the World}, volume = {63}, journal = {Welding in the World}, number = {2}, publisher = {Springer}, doi = {10.1007/s40194-018-0653-z}, pages = {229 -- 236}, year = {2019}, language = {en} } @article{VollmerShawNugentetal.2019, author = {Vollmer, Michael and Shaw, Joseph A. and Nugent, Paul and Harris, Wilson}, title = {Heiße Quellen im W{\"a}rmebild. Yellowstone-Park im Infraroten}, series = {Physik in unserer Zeit}, volume = {50}, journal = {Physik in unserer Zeit}, number = {5}, publisher = {Wiley-VCH}, doi = {10.1002/piuz.201901539}, pages = {244 -- 250}, year = {2019}, language = {de} } @article{MakwanaGoeckeDe2019, author = {Makwana, Pinaac and Goecke, Sven-Frithjof and De, Amitava}, title = {Real-time heat input monitoring towards robust GMA brazing}, series = {Science and Technology of Welding \& Joining}, volume = {24}, journal = {Science and Technology of Welding \& Joining}, number = {1}, publisher = {Taylor \& Francis}, doi = {10.1080/13621718.2018.1470290}, pages = {1 -- 11}, year = {2019}, language = {en} } @article{VollmerMoellmann2019, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Manche m{\"o}gen's kochend heiß}, series = {Physik in unserer Zeit}, volume = {50}, journal = {Physik in unserer Zeit}, number = {1}, publisher = {Wiley-VCH}, doi = {10.1002/piuz.201901533}, pages = {46 -- 47}, year = {2019}, language = {de} } @article{VollmerMoellmann2019, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Alles kalter Kaffee? Rasante Physik}, series = {Physik in unserer Zeit}, volume = {50}, journal = {Physik in unserer Zeit}, number = {5}, publisher = {Wiley-VCH}, doi = {10.1002/piuz.201901553}, pages = {252 -- 253}, year = {2019}, language = {de} } @article{VollmerMoellmann2019, author = {Vollmer, Michael and M{\"o}llmann, Klaus-Peter}, title = {Das langsame Verdunsten von Wasser}, series = {Physik in unserer Zeit}, volume = {50}, journal = {Physik in unserer Zeit}, number = {2}, publisher = {Wiley-VCH}, doi = {10.1002/piuz.201901541}, pages = {97 -- 98}, year = {2019}, language = {de} } @article{Hoeft2019, author = {H{\"o}ft, Uwe}, title = {Klimaschutz und Verkehrswende nur mit der Eisenbahn : Think Big - Act Fast}, series = {Privatbahn : Magazin}, volume = {2019}, journal = {Privatbahn : Magazin}, number = {2}, publisher = {Bahn-Media Verlag}, issn = {1865-0163}, pages = {30 -- 35}, year = {2019}, language = {de} } @article{Hoeft2019, author = {H{\"o}ft, Uwe}, title = {Terminals in der Haupstadtregion: Terminals in Berlin und Brandenburg}, series = {Privatbahn : Magazin}, journal = {Privatbahn : Magazin}, number = {1}, publisher = {Bahn-Media Verlag}, issn = {1865-0163}, pages = {40 -- 43}, year = {2019}, language = {de} } @article{MikhailovLamkinDegterevetal.2023, author = {Mikhailov, Ivan Igorevich and Lamkin, I. A. and Degterev, Aleksandr and Degtereva, Mariya and Pavlova, Marina and Kurachkina, Marharyta and Tarasov, S. A. and Kuzmina, Ulyana}, title = {Фоточувствительные структуры с каскадными концентраторами излучения на основе коллоидных квантовых точек халькогенидов металлов}, series = {Journal of the Russian Universities Radioelectronics}, volume = {26}, journal = {Journal of the Russian Universities Radioelectronics}, number = {2}, publisher = {Saint Petersburg Electrotechnical University}, issn = {2658-4794}, doi = {10.32603/1993-8985-2023-26-2-78-88}, pages = {78 -- 88}, year = {2023}, abstract = {The problem of increasing the efficiency of existing photodetectors and creating their new types attracts much research attention. Among new photodetector types are photosensitive structures based on cascade concentrators, whose operational principle involves the absorption of optical radiation followed by its reemission at a longer wavelength and radiation concentration onto a highly efficient small-area photodetector. The absorption and re-emission spectra of each cascade layer depend on the characteristics of the material used. Сolloidal quantum dots are among the most promising materials for cascade layers due to their manufacturing technology, which provides for accurate control over the photoluminescence maximum position. It seems highly relevant to develop and to study photosensitive structures with cascade concentrators of various shapes based on CdS, CdSe/ZnS, and PbS colloidal quantum dots. Aim . To develop photosensitive structures with a wide-range sensitivity spectrum based on concentrators containing arrays of metal chalcogenide CQDs and to study their characteristics. Materials and methods . Cascade photosensitive structures were manufactured based on layers made of polymethyl methacrylate and layers of colloidal quantum dots embedded in a polystyrene matrix. Results . Three-layer concentrators were manufactured with different colloidal quantum dots in each concentrator layers. A 22 \% increase in the output power was observed for a three-layer cascade structure based on different cascade layer materials compared to a similar structure using a single layer concentrator. Conclusion . The conducted studies showed an increase in the efficiency of photosensitive structures with a cascade concentrator based on colloidal quantum dots of various types (CdS, CdSe/ZnS, and PbS) in the cascade layers.}, language = {ru} } @article{CatalanoNaselloGuterding2024, author = {Catalano, Francesco and Nasello, Laura and Guterding, Daniel}, title = {Quantum Computing Approach to Realistic ESG-Friendly Stock Portfolios}, series = {Risks}, volume = {12}, journal = {Risks}, number = {4}, publisher = {MDPI}, issn = {2227-9091}, doi = {10.3390/risks12040066}, pages = {1 -- 12}, year = {2024}, abstract = {Finding an optimal balance between risk and returns in investment portfolios is a central challenge in quantitative finance, often addressed through Markowitz portfolio theory (MPT). While traditional portfolio optimization is carried out in a continuous fashion, as if stocks could be bought in fractional increments, practical implementations often resort to approximations, as fractional stocks are typically not tradeable. While these approximations are effective for large investment budgets, they deteriorate as budgets decrease. To alleviate this issue, a discrete Markowitz portfolio theory (DMPT) with finite budgets and integer stock weights can be formulated, but results in a non-polynomial (NP)-hard problem. Recent progress in quantum processing units (QPUs), including quantum annealers, makes solving DMPT problems feasible. Our study explores portfolio optimization on quantum annealers, establishing a mapping between continuous and discrete Markowitz portfolio theories. We find that correctly normalized discrete portfolios converge to continuous solutions as budgets increase. Our DMPT implementation provides efficient frontier solutions, outperforming traditional rounding methods, even for moderate budgets. Responding to the demand for environmentally and socially responsible investments, we enhance our discrete portfolio optimization with ESG (environmental, social, governance) ratings for EURO STOXX 50 index stocks. We introduce a utility function incorporating ESG ratings to balance risk, return and ESG friendliness, and discuss implications for ESG-aware investors.}, language = {en} } @article{RichterSchwarzCreutzburg2021, author = {Richter, Maximilian and Schwarz, Klaus and Creutzburg, Reiner}, title = {Conception and Implementation of Professional Laboratory Exercises in the field of ICS/SCADA Security - Part I: Fundamentals}, series = {Electronic imaging}, journal = {Electronic imaging}, publisher = {Society for Imaging Science and Technology}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-073}, pages = {73-1 -- 73-13}, year = {2021}, language = {en} } @article{WangHarthPuzyrevetal.2022, author = {Wang, Jing and Harth, Kirsten and Puzyrev, Dmitry and Stannarius, Ralf}, title = {The effect of obstacles near a silo outlet on the discharge of soft spheres}, series = {New Journal of Physics}, volume = {24}, journal = {New Journal of Physics}, publisher = {IOP}, doi = {10.1088/1367-2630/ac8bea}, year = {2022}, language = {en} } @article{RegehlyHecht2022, author = {Regehly, Martin and Hecht, Stefan}, title = {Auf dem Weg zum Replikator}, series = {Physik in unserer Zeit}, volume = {53}, journal = {Physik in unserer Zeit}, number = {3}, publisher = {Wiley-VCH GmbH}, issn = {1521-3943}, doi = {10.1002/piuz.202201637}, pages = {125 -- 131}, year = {2022}, language = {de} } @article{ScheegScheeg2019, author = {Scheeg, Jochen and Scheeg, Manuela}, title = {Digitale L{\"o}sungen passend f{\"u}r den Nutzer gestalten}, series = {Wissenschaft trifft Praxis : Usability betrieblicher IT-Anwendungen}, journal = {Wissenschaft trifft Praxis : Usability betrieblicher IT-Anwendungen}, number = {11.2019}, publisher = {Begleitforschung Mittelstand-Digital}, issn = {2198-8544}, pages = {32 -- 38}, year = {2019}, language = {de} } @inproceedings{WikarskiAurahEbingaOsoreetal.2021, author = {Wikarski, Dietmar and Aurah, Catherine and Ebinga Osore, Emmanuel and Mengich, Gladys and Mutua, Gershom and Ndiema, Alice and Nkangi, Felister Nyaera and Ogemah, Vitalis and Okoth, Patrick and Ondulo, Jasper and Orata Omoto, Francis and Wambui Mwangi, Mary and Namayi, Vivian and Flassig, Peter and Loose, Harald and Malessa, Reiner and Piorr, Hans-Peter and Schrader, Thomas and Weber, Christian-Toralf}, title = {Towards Practice-oriented Higher Education for Sustainable Rural Development in Western Kenya}, editor = {Wikarski, Dietmar}, edition = {1st edition}, publisher = {Technische Hochschule Brandenburg}, address = {Brandenburg an der Havel}, organization = {Technische Hochschule Brandenburg}, doi = {10.25933/opus4-2742}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:522-opus4-27420}, year = {2021}, abstract = {The workshop proceedings contain the written versions of the presentations of the Kenyan participants of the final workshop of the DAAD-funded cooperation project "Practice-oriented Higher Education in Western Kenya" (ProUniEdu-WeK) in August 2021 at the Brandenburg University of Applied Sciences (THB). The contributions give an impression of what has been achieved in the last years on the way to practice-oriented higher education in the participating departments of the Masinde Muliro University of Science and Technology (MMUST) in cooperation with its partners from the THB and what is planned to be done in the years to come.}, language = {en} } @article{PfeifferDilipSuryawanshietal.2021, author = {Pfeiffer, Thomas and Dilip, Khadse Himanshu and Suryawanshi, Raunak and Kishnamurthy, Gnana Swaroop and T{\´e}llez, Batcheva Dom{\´i}nguez and Creutzburg, Reiner and Hartmann, Michael}, title = {Airflow visualization and air purifier positioning optimization in potentially COVID-19 contaminated classrooms}, series = {Electronic Imaging}, journal = {Electronic Imaging}, publisher = {Society for Imaging Science and Technology}, address = {Springfield, VA}, issn = {2470-1173}, doi = {10.2352/ISSN.2470-1173.2021.3.MOBMU-039}, pages = {39-1 -- 39-15}, year = {2021}, language = {en} }