TY - JOUR
A1 - Regehly, Martin
A1 - Hecht, Stefan
T1 - Auf dem Weg zum Replikator
BT - volumetrischer 3D-Druck
JF - Physik in unserer Zeit
KW - Xolographie
KW - 3D-Druck
KW - Additive Fertigung
KW - volumetrisch
KW - Photoschalter
KW - Lichtschnitt
Y1 - 2022
U6 - https://doi.org/10.1002/piuz.202201637
SN - 1521-3943
SN - 1521-3943 (eISSN)
VL - 53
IS - 3
SP - 125
EP - 131
PB - Wiley-VCH GmbH
ER -
TY - JOUR
A1 - Kraska, Martin
T1 - Meclib: Dynamic and Interactive Figures in STACK Questions Made Easy
JF - International Journal of Emerging Technologies in Learning (iJET)
N2 - Making and interpretation of drawings and schematics is an important skill to be developed in engineering education. The question type STACK in the Moodle learning management system combined with the interactive graphics library JSXGraph has a great potential for implementation of e-learning resources addressing these skills in formative and summative settings. The authoring process of such materials is complex due to multiple markup and programming languages like HTML, LaTeX, Maxima and JavaScript (JS) being involved. The Meclib concept mitigates this complexity and allows for efficient bulk production of material with consistent appearance and user experience. The core of Meclib is a set of pre-defined JSXGraph-based objects with an interface to Maxima, such that no problem specific JS code is required at all. The present paper outlines the basic ideas of the implementation and demonstrates the approach for some typical examples of different complexity. The focus is on applications in engineering mechanics, starting from static illustrations up to an editor for free body diagrams, with rich adaptive formative feedback.
Y1 - 2022
UR - https://online-journals.org/index.php/i-jet/article/view/36501
U6 - https://doi.org/10.3991/ijet.v17i23.36501
SN - 1863-0383
VL - 17
IS - 23
SP - 15
EP - 27
PB - International Association of Online Engineering
ER -
TY - JOUR
A1 - Kuznetsov, Artur
A1 - Frorip, Aleksandr
A1 - Sünter, Alar
A1 - Korsakov, Vadim
A1 - Konoplev, Georgii
A1 - Stepanova, Oksana
A1 - Roschina, Natalia
A1 - Ovsyannikov, Nikolay
A1 - Lialin, Daniil
A1 - Gerasimchuk, Roman
A1 - Dmitriev, Alexander
A1 - Mukhin, Nikolay
A1 - Hirsch, Sören
T1 - Optical Chemical Sensor Based on Fast-Protein Liquid Chromatography for Regular Peritoneal Protein Loss Assessment in End-Stage Renal Disease Patients on Continuous Ambulatory Peritoneal Dialysis
JF - Chemosensors
KW - optical chemical sensor
KW - fast-protein liquid chromatography
KW - UV LED
KW - end-stage renal disease
KW - peritoneal dialysis
KW - peritoneal protein loss
KW - albumin
KW - point-of-care diagnostic devices
Y1 - 2022
U6 - https://doi.org/10.3390/chemosensors10060232
VL - 10
IS - 6
PB - MDPI
ER -
TY - JOUR
A1 - Blasek, Katrin
T1 - Haftung für KI – Zum Vorschlag der EU-Kommission
JF - Datenschutz-Berater
N2 - Zur Umsetzung ihres "digitalen Kompass 2030" hat die Kommission zwei weitere Rechtsakte vorgeschlagen. Die mehr als 30 Jahre alte Produkthaftungsrichtlinie soll revidiert und eine neue Richtlinie über die Haftung für künstliche Intelligenz erlassen werden. Damit soll die politisch gewünschte Etablierung von KI in der EU für Wirtschaft und Gesellschaft auch haftungsrechtlich abgesichert werden. Der Beitrag analysiert die Richtlinie über die Haftung für künstliche Intelligenz in ihrem Verhältnis zum Gesetz über künstliche Intelligenz und zur Produkthaftungsrichtlinie.
KW - Datenschutz
KW - Künstliche Intelligenz
Y1 - 2022
SN - 0170-7256
IS - 11
SP - 299
EP - 302
PB - Deutscher Fachverlag
ER -
TY - JOUR
A1 - Lamshöft, Kevin
A1 - Neubert, Tom
A1 - Hielscher, Jonas
A1 - Vielhauer, Claus
T1 - Knock, knock, log: Threat analysis, detection & mitigation of covert channels in syslog using port scans as cover
JF - Forensic Science International: Digital Investigation
Y1 - 2022
U6 - https://doi.org/10.1016/j.fsidi.2022.301335
SN - 2666-2817
VL - 40
PB - Elsevier
ER -
TY - JOUR
A1 - Trittel, Torsten
A1 - Klopp, Christoph
A1 - Harth, Kirsten
A1 - Stannarius, Ralf
T1 - Stability and Rupture of Liquid Crystal Bridges under Microgravity
JF - Crystals
KW - smectic liquid-crystals
KW - Rayleigh-Plateau instability
KW - TEXUS suborbital rocket
KW - microgravity
Y1 - 2022
U6 - https://doi.org/https://doi.org/10.3390/cryst12081092
VL - 12
IS - 8
PB - MDPI
ER -
TY - JOUR
A1 - Vollmer, Michael
A1 - Shaw, Joseph A.
T1 - Seeing better in nature: contrast enhancement by near infrared imaging
JF - European Journal of Physics
Y1 - 2022
U6 - https://doi.org/10.1088/1361-6404/ac578d
VL - 43
IS - 3
PB - Institute of Physics Publishing
ER -
TY - JOUR
A1 - Konoplev, Georgii
A1 - Agafonova, Darina
A1 - Bakhchova, Liubov
A1 - Mukhin, Nikolay
A1 - Kurachkina, Marharyta
A1 - Schmidt, Marc-Peter
A1 - Verlov, Nikolay
A1 - Sidorov, Alexander
A1 - Oseev, Aleksandr
A1 - Stepanova, Oksana
A1 - Kozyrev, Andrey
A1 - Dmitriev, Alexander
A1 - Hirsch, Sören
T1 - Label-Free Physical Techniques and Methodologies for Proteins Detection in Microfluidic Biosensor Structures
JF - Biomedicines
KW - label-free biosensor
KW - microfluidics
KW - proteins detection
KW - optical biosensors
KW - impedance spectroscopy
KW - plasmon resonance
KW - point-of-care
KW - diagnostic devices
Y1 - 2022
U6 - https://doi.org/10.3390/biomedicines10020207
SN - 2227-9059
VL - 10
IS - 2
SP - 207
PB - MDPI
ER -
TY - JOUR
A1 - John, Stefanie
A1 - Orlowski, Katja
A1 - Mrkor, Kai-Uwe
A1 - Edelmann-Nusser, Jürgen
A1 - Witte, Kerstin
T1 - Differences in hip muscle strength and static balance in patients with transfemoral amputations classified at different K-levels : A preliminary cross-sectional study
JF - Canadian Prosthetics & Orthotics Journal (CPOJ)
KW - Amputation
KW - K-level
KW - Balance
KW - Transfemoral amputation
KW - Muscle strength
KW - Residual limb
KW - Static balance
Y1 - 2022
U6 - https://doi.org/10.33137/cpoj.v5i1.37456
SN - 2561-987X
VL - Vol. 5
IS - No.1
PB - University of Toronto Libraries
ER -
TY - JOUR
A1 - Kombe, Emmanuel Yeri
A1 - Langat, Nickson
A1 - Njogu, Paul
A1 - Malessa, Reiner
A1 - Weber, Christian-Toralf
A1 - Njoka, Francis
A1 - Krause, Ulrich
T1 - Numerical investigation of sugarcane bagasse gasification using Aspen Plus and response surface methodology
JF - Energy Conversion and Management
KW - Biomass gasification
KW - Aspen Plus
KW - Optimization
KW - Gibbs free energy minimization
KW - Response surface methodology
Y1 - 2022
U6 - https://doi.org/10.1016/j.enconman.2021.115198
SN - 0196-8904
VL - 254
PB - Elsevier
ER -
TY - JOUR
A1 - Marcus, von der Heyde
A1 - Gerl, Armin
A1 - Groß, Rainer
A1 - Klapper, Frank
A1 - Meister, Vera G.
A1 - Knaden, Andreas
A1 - Rehm, Simone
T1 - Gemeinsame Digitalisierung durch die Entwicklung von IT-Governance-Strukturen auf Landesebene
BT - Vergleich von Zielen und Steuerung der Hochschulkooperation von fünf Bundesländern in Deutschland
JF - Wirtschaftsinformatik & Management
Y1 - 2022
U6 - https://doi.org/10.1365/s35764-022-00393-8
PB - Gabler
ER -
TY - JOUR
A1 - Tetzlaff, Laura
A1 - Heinrich, Andrea Sanguino
A1 - Schadewitz, Romy
A1 - Thomeczek, Christian
A1 - Schrader, Thomas
T1 - Die Analyse des CIRSmedical.de mittels Natural Language Processing
JF - Zeitschrift für Evidenz, Fortbildung und Qualität im Gesundheitswesen
T2 - The analysis of CIRSmedical.de using Natural Language Processing
KW - CIRS
KW - Natural Language Processing
KW - Patientensicherheit
Y1 - 2022
U6 - https://doi.org/10.1016/j.zefq.2021.12.002
SN - 2212-0289
PB - Elsevier
ER -
TY - JOUR
A1 - Fitz, Lukas R. G.
A1 - Scheeg, Michaela
A1 - Scheeg, Jochen
T1 - Amplifying Human Factors in the Inquiry of SMEs’ Needs in Digitalization Collaborations with External Service Providers
BT - 3rd International Conference on Industry 4.0 and Smart Manufacturing
JF - Procedia Computer Science
KW - Digitalization
KW - SME
KW - Human-Centered Design
KW - Open Innovation
Y1 - 2022
U6 - https://doi.org/10.1016/j.procs.2022.01.257
SN - 1877-0509
VL - 200
SP - 595
EP - 601
PB - Elsevier
ER -
TY - JOUR
A1 - Weimer, Katja
A1 - Buschhart, Cliff
A1 - Broelz, Ellen K.
A1 - Enck, Paul
A1 - Horing, Björn
T1 - Bibliometric Properties of Placebo Literature From the JIPS Database: A Descriptive Study
JF - Frontiers in Psychiatry
Y1 - 2022
U6 - https://doi.org/10.3389/fpsyt.2022.853953
SN - 1664-0640
VL - 13
PB - Frontiers Research Foundation
ER -
TY - JOUR
A1 - Missaoui, Amine
A1 - Harth, Kirsten
A1 - Trittel, Torsten
A1 - Klopp, Christoph
A1 - Stannarius, Ralf
A1 - Lacaze, Emanuelle
T1 - Shape instabilities of islands in smectic films under lateral compression
JF - Soft Matter
Y1 - 2022
U6 - https://doi.org/10.1039/D2SM00144F
SN - 1744-6848
VL - 16
SP - 3193
EP - 3205
PB - Royal Society of Chemistry
ER -
TY - JOUR
A1 - Wagener, Jan
A1 - Fitz, Lukas R. G.
T1 - How to assemble an Automatic Water Dispenser System – Design of a Learning Station feat. Augmented Reality
KW - augmented realiy
KW - learning
KW - industrial sector
Y1 - 2022
UR - https://www.usf.edu/business/documents/desrist/paper_113.pdf
PB - University of South Florida
ER -
TY - BOOK
A1 - Kraska, Martin
T1 - SMath with Maxima
BT - Getting Started with the Maxima Plugin
KW - SMath
KW - Software
KW - Maxima
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29497
PB - Technische Hochschule Brandenburg
CY - Brandenburg
ER -
TY - THES
A1 - Runge, Tilman
T1 - Dismantling the Quantum Threat
N2 - The Quantum Threat looms over cryptography: Once strong quantum computers become available, its game over for encryption and privacy. This widespread understanding of the how cryptography will be impacted by quantum computing is challenged in this thesis to achieve a more nuanced understanding of both the ramifications of the Quantum Threat and potential countermeasures to it.
KW - quantum threat
KW - q-day
KW - Shor
KW - Computersicherheit
KW - Kryptosystem
KW - Datenschutz
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-28889
ER -
TY - RPRT
A1 - Maurer, Robert
A1 - Johannsen, Andreas
A1 - Pochanke, Oliver
T1 - Analyse der Trends und Alternativen zur Online-Präsenz als Kommunikationskanal von kleinen und mittleren Unternehmen durch den Einsatz von Plattformen
BT - Ergebnisse einer Studie durch das Institut für Betriebliche Integration und Digitalisierung (IBID) am Fachbereich Wirtschaft der Technischen Hochschule Brandenburg
T2 - Schriften des Instituts für Betriebliche Integration und Digitalisierung (IBID)
N2 - Die Digitalisierung ist eine der Herausforderungen der heutigen Zeit. Einhergehend mit der Zunahme der Nutzung des Internets in vielen Lebensbereichen steigt auch die Wichtigkeit für Unternehmen, einen repräsentativen Auftritt zu etablieren. Für kleine und mittlere Unternehmen bedeutet das Betreiben und Pflegen einer Onlinepräsenz oftmals einen hohen finanziellen und zeitlichen Aufwand. Ziel des vorliegenden Arbeitspapiers ist es, kleinen und mittleren Unternehmen eine Alternative zu herkömmlichen Content Management Systemen darzulegen und sie bei der Entscheidungsfindung zu unterstützen. Zur Beantwortung der Forschungsfragen wurde der methodische Ansatz einer Literatur- und Internetrecherche verwendet. Aus der Analyse konnten drei Online Business Plattformen identifiziert, sowie deren Vor- und Nachteile gegenüber Content Management Systemen dargestellt werden. Anschließend wurden Kriterien definiert und Empfehlungen dargelegt, welche kleine und mittlere Unternehmen im Entscheidungsprozess unterstützen sollen. Letztlich wurden die Einrichtung sowie die wichtigsten Funktionen einer Plattform dargestellt. Die Ergebnisse zeigen, dass die Nutzung einer Onlineplattform für lokal begrenze Unternehmen mit geringen Anforderungen an die Funktionalität und hoher Kostensensibilität eine sinnvolle Alternative ist. Abschließend wurde anhand des realen Fallbeispiels „Google My Business“ (seit 2022: „Google Business Profile“) auf die Funktionen sowie Vorteile und Möglichkeiten einer solchen Plattform eingegangen.
N2 - Digitalization is one of the big challenges of our time. Along with the increased online life, the importance for companies to establish a representative online presence is growing as well. Especially for small and medium size companies, the operation and maintenance of an online presence means a high effort in terms of time and financial investment. The aim of this study is to provide an alternative to common content management systems for small medium size companies. In addition, they should be supported in the decision making process. To answer the research questions the methodical approach of a literature and internet research was used. From the analysis, three online business platforms were identified and their advantages and disadvantages compared to content management systems were presented. Subsequently, criteria were defined and recommendations were presented, which should support small and medium-sized enterprises in the decision-making process. Finally, the setup as well as the most important functions of a platform were presented. The results show that the use of an online platform is a sensible alternative for locally limited companies with low functionality requirements and high cost sensitivity. Finally, the functions as well as advantages and possibilities of such a platform were discussed on the basis of the real case study "Google My Business" (since 2022: "Google Business Profile")
T3 - Schriften des Instituts für Betriebliche Anwendungssysteme - 23/1
KW - Digitalisierung
KW - KMU
KW - Google Business Profile
KW - Online Präsenz
KW - Online Plattformen
KW - Online-Marketing
KW - Geschäftsmodell
KW - Plattform
KW - Klein- und Mittelbetrieb
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-28853
SN - 2198-090X
VL - 11
PB - Technische Hochschule Brandenburg
CY - Brandenburg an der Havel
ER -
TY - JOUR
A1 - Pufal, Jakob
A1 - Shun, Hanna
A1 - Ben Ammar, Rami
A1 - Jeckstadt, Janik
A1 - Schultheiß, John
T1 - The Great Shutdown
BT - How disruptive would a military escalation of the China-Taiwan-Conflict be to global economies?
N2 - This research aims to examine the potential impact of a military escalation of the China-Taiwan conflict on global economies, with a particular focus on the microchip production industry in Taiwan. The academic paper will analyze the current economic ties between Taiwan and other countries, as well as the potential consequences of a disruption in trade and production caused by a military conflict. The research will also examine the role of Taiwan's microchip industry in the global supply chain and its potential vulnerability to a disruption in the event of a military escalation. Additionally, this scientific paper will explore the possible economic responses of other countries and the international community to a military escalation of the China-Taiwan conflict. The research will use a combination of the systematic literature review and the scenario technique to demonstrate potential impact of a military escalation of the China-Taiwan conflict on global economies, with a specific focus on the microchip production industry in Taiwan.
KW - China Taiwan Conflict
KW - China
KW - Taiwan
KW - China Taiwan War
KW - microchip
KW - semiconductor
KW - foundry
KW - TSMC
KW - microchip manufacturing
KW - Weltwirtschaft
KW - Internationale Produktion
KW - Chip
KW - Fallstudie
KW - Bewaffneter Konflikt
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-28942
ER -
TY - THES
A1 - Funke, Maren
T1 - Die Beeinflussbarkeit der für die ökologische Nachhaltigkeit relevanten KPIs durch die Digitalisierung in kleinen Unternehmen
N2 - Ist die Digitalisierung für kleine Unternehmen ein Werkzeug, Prozesse ökologisch nachhaltiger zu gestalten? Am Beispiel eines Baustoffhandels wird dies Untersucht. Die Aufstellung umweltbezogener KPIs für einzelne Prozesse jeweils vor und nach der (Teil-)Digitalisierung wird durchgeführt. Die Umweltauswirkungen der digitalen Transformation lassen sich somit messen und bewerten.
KW - Digitalisierung
KW - Klein- und Mittelbetrieb
KW - Nachhaltigkeit
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-28992
PB - Technische Hochschule Brandenburg
CY - Brandenburg an der Havel
ER -
TY - THES
A1 - Nicksch, Tino
T1 - Schwachstellenanalyse in der Kommunikation von Medizingeräten am Beispiel von B. Braun Infusionspumpen
N2 - Der Einfluss von Technik in der Medizin wird immer deutlicher. Hierbei steigt auch im gleichen Maß die Bedrohung auf das Gesundheitswesen durch Cyberkriminalität. [1] Diese Arbeit umfasst eine Schwachstellenbetrachtung und Analyse der Kommunikation zweier B. Braun Infusionspumpen und dem dazugehörigen Konfigurationswerkzeug, der „Online-Suite“. Hierbei wurde ein Fokus auf vor allem drei Untersuchungsmethoden gelegt: 1. Ein Portscan mittels „Nmap“, welcher bereits erste, leicht einsehbare Informationen über die verwendeten Ports und Dienste aufdecken sollte. 2. Ein Schwachstellenscan durchgeführt mit „GVM/OpenVAS“, welcher die einzelnen Schwachstellen der Dienste und Software an Hand von einem „CVSS-Wert“ bewertet. 3. Eine Betrachtung des Netzwerkverkehrs in Wireshark, um den Aufbau der Kommunikation zu analysieren. Hierbei ergaben sich diverse Sicherheitsrisiken und Probleme. Diese können im schlimmsten Fall auch die Sicherheit des Patienten beeinflussen. Besonders häufig wurden hierbei Schwachstellen gefunden, welche durch veraltete und nicht weiter unterstützte Software bedingt waren.
KW - Vulnerability Scan
KW - Medical Devices
KW - Infusion Pumps
KW - Security
KW - Patient Safety
KW - Informationssicherheit
KW - Medizinisches Gerät
KW - Infusomat
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29024
ER -
TY - GEN
A1 - Lemke, Claudia
T1 - Umfragedesign "LLM-Readiness"
N2 - Das Umfragedesign "LLM-Readiness" - Gruppen- und Einzelumfrage unter Erstsemesterstudierenden der HWR Berlin im Wintersemester 2022/2023 - ergänzt die Publikation "Kritische Reflexion und Handlungsansätze zum Einsatz Generativer KI in der Wirtschaftsinformatik, welche zur Jahrestagung des AKWI im September 2023 eingereicht wird.
KW - Umfrage
KW - Forschungsplanung
KW - Umfragedesign
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29099
ER -
TY - THES
A1 - Jungclaus, Bjarne
T1 - Detektion von Ransomware in der IT-Systemlandschaft bei Betreibern Kritischer Infrastruktur
N2 - Ransomware-Angriffe auf Kritische Infrastrukturen, wie Energie- oder Wasserversorgung, treten immer häufiger auf und stellen eine große Bedrohung für die Betreiber und die Bevölkerung dar. Eine verlässliche und frühzeitige Erkennung dieser Angriffe ist somit ein wichtiger Bestandteil von IT-Sicherheitskonzepten.
Ziel dieser Arbeit ist die Klärung der Fragen, welche Methoden zur Erkennung von Ransomware eingesetzt werden und welche Indikatoren für Ransomware-Angriffe mithilfe eines Angriffserkennungssystems in einer nachgebildeten IT-KRITIS-Infrastruktur erkannt werden können.
Es wurden Methoden zur Detektion von Malware und Ransomware genauer betrachtet.
In einem Experiment wurde die Erkennung von Ransomware mithilfe eines Angriffserkennungssystems (Elastic Stack) untersucht. Das Ergebnis dieser Arbeit zeigt, dass die Erkennung sowohl mit allgemeinen Detektionsansätzen als auch mit auf Ransomware spezialisierten Methoden erfolgen kann.
Aus dem Experiment geht hervor, dass die Detektion von Ransomware-Angriffen mithilfe eines Angriffserkennungssystems in der Praxis erfolgreich ist. Indikatoren für RansomwareAngriffe werden sowohl auf Systemebene (Prozesse, Dateioperationen, Registry-Änderungen etc.) als auch auf Netzwerkebene (C2-Kommunikation, auffällige DNS-Anfragen, IPAdressen etc.) erkannt.
KW - IT-Sicherheit
KW - Kritische Infrastruktur
KW - Ransomware
KW - Detektion
KW - Informationssicherheit
KW - Datenverarbeitungssystem
KW - Computersicherheit
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29033
ER -
TY - THES
A1 - Monz, Johannes Stefan
T1 - Datenmodellinterne Revisionshistorie für nebenläufige Geschäftsprozesse am Fallbeispiel der Verwaltung von Studiengangscurricula
N2 - Die Versionierung von Daten ist ein hochkomplexes Problem, das viele verschiedene
Aspekte berücksichtigen muss. Daher ist in diesem Bereich bisher noch kein univer-
sell anwendbarer Ansatz beschrieben worden. Verschiedene Autoren haben sich an einer
Lösung versucht und Herangehensweisen für ihre eigenen Anwendungsfälle entwickelt.
In dieser Arbeit wird ein neuer Ansatz anhand eines Fallbeispiels vorgestellt. Der An-
satz zielt darauf ab, Daten- und Versionierungsstrukturen in einem relationalen Da-
tenmodell zu vereinigen und dabei eine einfache Integration von Geschäftsprozessen
zu ermöglichen. Insbesondere wird darauf geachtet, dass die Erzwingung des korrekten
Ablaufs von Geschäftsprozessen durch eine maschinelle Umsetzung derselben möglich
ist. Das Datenmodell beinhaltet eine vollständige Versionierungshistorie in Form eines
gerichteten zyklenlosen Graphen. Hiermit bietet es eine breit anwendbare Lösung zur
Datenversionierung, die zudem gut in bestehende Abläufe und Datensätze integrierbar
ist. In dieser Arbeit wird das kombinierte Datenmodell vorgestellt und anhand von ge-
nerischen Beispielen erläutert. Zudem wird die Funktionalität des Ansatzes anhand des
Fallbeispiels der Verwaltung der Studiengangscurricula des Fachbereichs Informatik und
Medien der Technischen Hochschule Brandenburg belegt. Hierbei wird auch die Integra-
tion von Geschäftsprozessen und die Nutzbarkeit in der tatsächlichen Datenverwaltung
dargestellt.
N2 - Versioning of Datasets is a highly complex problem whose solutions are required to take
many different aspects into account. As such, no universally applicable approach has
been published yet. Various authors have tried and developed solutions for their own
use cases. In this thesis, we present our approach based on our use case. The approach
shown here aims to unify structures for data persistence and version control into a single
data model and to allow a seamless integration of business processes. In particular, the
aim is to ensure that an enforcement of business processes via an automated execution
of said processes is easily possible. The data model delivers a complete version history
as a directed non-cyclic graph. As such, it offers a widely applicable solution for data
versioning in small systems, which is also easily integratable into existing data sets,
processes and structures. This thesis presents the combined data model and explains
its appliation using generic examples. Afterwards, the funcionality of the approach in
a real-life setting is demonstrated with our use case of managing the curricula of the
Department of Computer Science and Media at the Brandenburg University of Applied
Sciences. In this, the integration of business processes and the usage in actual data
mangement is also demonstrated.
KW - Datenverarbeitungssystem
KW - Versionsverwaltung
KW - Relationale Datenbank
KW - Prozesskette
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29380
ER -
TY - THES
A1 - Nowak, Max
T1 - Integration von Endnutzer Netzwerkgeräten in zentralisierte Protokoll Management Systeme am Beispiel der FRITZ!Box
N2 - Diese Bachelorarbeit untersucht die Einbindung eines typischen Endnutzer Netzwerkgerätes in ein bestehendes Protokollierungssystem. Aufgrund des erhöhten Anteils an Mitarbeitern im Homeoffice in deutschen Firmen sind die Heimnetzwerke ein bedeutend wichtigerer Bestandteil der Firmensicherheit und es soll untersucht werden, wie übliche Heimnetzwerkgeräte in die Sicherheitsstrukturen der Firmen eingebunden werden können.
Zu diesem Zweck wird ein Proof-of-Concept basierend auf den Technologien TR-064, zur Kommunikation mit der FRITZ!Box und Syslog, zur Kommunikation mit einem Protokollierungssystem entwickelt.
Anhand dieses Prototypen lässt sich feststellen, dass eine solche Einbindung zwar einfach umzusetzen ist, aber auf dieser keine effektive Überwachung aufgebaut werden kann. Die Ursache dafür ist der Umstand, dass TR-064 nur einen Bruchteil der Logdaten von der FRITZ!Box zurücksendet.
KW - Computersicherheit
KW - Informationssicherheit
KW - Logdatei
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29191
ER -
TY - GEN
A1 - Weber, Simon
A1 - Stein, Stefan
A1 - Pilgermann, Michael
A1 - Schrader, Thomas
T1 - Attack Detection for Medical Cyber- Physical Systems - The Visualization
N2 - Attack Detection for Medical Cyber-Physical Systems -
The Visualization
KW - Detection
KW - IDS
KW - intrusion prevention
KW - medical cyber-physical systems
KW - medical CPS
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29142
ER -
TY - BOOK
A1 - Kraska, Martin
T1 - Technisches Rechnen mit SMath : Matrizen, Diagramme, Datenverarbeitung
KW - SMath
KW - Software
KW - Anleitung
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29486
PB - Technische Hochschule Brandenburg
CY - Brandenburg
ER -
TY - BOOK
A1 - Kraska, Martin
T1 - Technisches Rechnen mit SMath : Erste Schritte
KW - SMath
KW - Software
KW - Anleitung
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29479
PB - Technische Hochschule Brandenburg
CY - Brandenburg
ER -
TY - THES
A1 - Dalitz, Franz
T1 - Implementierung eines Stacks zum Erzeugen, Verarbeiten und Visualisieren von Telemetriedaten für ein Microservice basiertes System
N2 - Einsicht in die Abläufe und Leistung heutiger Software und verteilter Systeme zu erlangen, wird durch stetig steigende Komplexität zunehmend erschwert. Die Firma Peterson Technologies GmbH implementierte zur Linderung dieser Problematik ein internes Telemetriesystem. Ziel dieser Arbeit ist es, das System auf Wunsch der Firma durch ein neues zu ersetzen, um so die Überwachung zu verbessern und aktuellere Software zu verwenden. Nach einer Untersuchung des vorherigen Systems werden Prioritäten festgelegt, welche die spätere Nutzung, Instandhaltung und Erweiterung des neuen Systems erleichtern sollen. Darauf folgen die Planung seiner Architektur, die Auswahl und Implementierung der Software und schließlich das Erzeugen einer einfachen Dokumentation. Der resultierende Telemetriestack ist funktionstüchtig und erfüllt die Vorstellungen der Firma. Dennoch weist er einige Probleme, wie beispielsweise eine hohe CPU Belastung auf, welche zusammen mit Möglichkeiten der Verbesserung und Erweiterung abschließend betrachtet werden.
KW - Telemetrie
KW - Distributed Tracing
KW - Microservices
KW - Grafana
KW - OpenTelemetry
KW - Telemetrie
KW - Mikroservice
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29418
CY - Brandenburg an der Havel
ER -
TY - THES
A1 - Blauert, Derk-Janko
T1 - Bewertung des Potentials von Network Access Control (NAC) für die Netzwerksicherheit in modernen IT-Umgebungen mittels vergleichender Betrachtung der beiden Produkte PacketFence und macmon
N2 - In der heutigen digitalisierten Welt spielt die Sicherheit von IT-Infrastrukturen eine
entscheidende Rolle. Diese Bachelorarbeit untersucht das Potenzial von Network
Access Control (NAC) als eine IT-Lösung zur Verbesserung der Netzwerksicherheit in
modernen IT-Umgebungen. Dabei steht die Zugriffskontrolle von Personen und
Geräten im Vordergrund. Damit soll erreicht werden, dass unautorisierter Zugriff zum
Netzwerk verhindert wird. Es werden die Begrifflichkeiten, Funktionsweise und
potenzielle Angriffsvektoren von NAC untersucht. Des Weiteren werden die jeweiligen
Funktionen der NAC-Produkte macmon und der Open-Source Lösung PacketFence
gegenübergestellt. Im praktischen Teil der Arbeit werden dann die vorgestellten
Angriffsvektoren an einem Test-Netzwerk durchgeführt und analysiert.
Die Arbeit zeigt, dass NAC eine wichtige Komponente in der Zugriffskontrolle für eine
moderne IT-Infrastruktur ist. Während einige Angriffe auf das Test-Netzwerk
abgewehrt werden konnten, war es dennoch möglich, sich als Angreifer am Netzwerk
anzumelden. NAC ist ein unerlässliches Tool für größere IT-Infrastrukturen, jedoch
erfordert eine korrekte Konfiguration und effektive Nutzung von NAC ein
umfangreiches Wissen über die verschiedenen Aspekte und Themenbereiche der
Netzwerksicherheit.
N2 - In today's digitalized world, the security of IT infrastructures plays a vital role. This
bachelor's thesis examines the potential of Network Access Control (NAC) as an IT
solution to enhance network security in modern IT enviroments. The focus is on access
control for individuals and devices. The goal is to prevent unauthorized network access.
The terminology, functionality, and potential attack vectors of NAC are explored.
Furthermore, the respective functions of the NAC products macmon and the open-
source solution PacketFence are compared. In the practical part of the thesis, the
introduced attack vectors are tested on a lab network and analyzed.
The study shows that NAC is a crucial component in access control for modern IT
infrastructure. While some attacks on the test network were successfully prevented, it
was still possible for an attacker to gain access to the network. NAC is an indispensable
tool for larger IT infrastructures. However proper configuration and effective use of
NAC require extensive knowledge of the various aspects and topics of network security.
KW - Informationssicherheit
KW - Datenverarbeitungssystem
KW - Computersicherheit
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29514
PB - Technische Hochschule Brandenburg
CY - Brandenburg an der Havel
ER -
TY - RPRT
A1 - Schugardt, Alexander
T1 - Untersuchung der Rotorfestigkeit von permanenterregten Synchronmaschinen mit vergrabenen Magneten
N2 - Diese Projektarbeit behandelt die mechanische Simulation der Rotoren von permanenterregten Synchronmaschinen für den Festigkeitsnachweis. Hierzu wird die Finite-Elemente-Methode mit dem Programm CalculiX verwendet. Als Beispiel wird der Elektromotor des Toyota Prius II im Detail betrachtet. Hierbei werden die unterschiedlichen Lasten modelliert, dazu zählen neben der Zentrifugalkraft auch der Innendruck durch eine Presspassung sowie die elektromagnetischen Kräfte. Für die Modellierung von Kräften auf der Rotoroberfläche wird eine Methodik zur Umsetzung in CalculiX entwickelt und anhand eines Beispielmodells demonstriert. Der angestrebte Festigkeitsnachweis kann im Rahmen dieser Arbeit erbracht werden. Weiterhin wird gezeigt, dass der Einfluss der elektromagnetischen Kräfte im Arbeitspunkt mit der höchsten Drehzahl sehr gering ausfällt. Insgesamt bietet diese Arbeit die Grundlagen für mechanische Modellierungen von Rotoren unter Berücksichtigung aller Kräfte. Dies kann direkt auf andere Elektromotoren angewendet werden.
KW - Rotor
KW - Finite-Elemente-Methode
KW - Elektromotor
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29610
PB - Technische Hochschule Brandenburg
CY - Brandenburg an der Havel
ER -
TY - THES
A1 - Kenfack, Divine Leopold
T1 - Erhöhung der Phishing-Resistenz von Anmeldeverfahren durch Einsatz von FIDO2 und Passkey
N2 - In dieser Forschung wird es gezeigt, wie sicher und benutzerfreundlich eine Authentifizierung mit Passkey/FIDO2 auf Ebene des Web-Browsers ist, im Vergleich zu einer Authentifizierung mit einem starken Passwort oder eine Authentifizierung aus einer Kombination von einem Passwort und einer Zwei-Faktor-Authentifizierung.
KW - Authentifizierung
KW - Computersicherheit
KW - Phishing
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29688
PB - Technische Hochschule Brandenburg
CY - Brandenburg an der Havel
ER -
TY - CHAP
A1 - Seyerlein-Klug, Annegrit
A1 - Adler, Rasmus
ED - Wahlster, Wolfgang
ED - Winterhalter, Christoph
T1 - 4.2.: Sicherheit
T2 - Deutsche Normungsroadmap Künstliche Intelligenz
Y1 - 2023
SP - 105
EP - 120
PB - DKE - Deutsche Kommission Elektrotechnik Elektronik Informationstechnik in DIN und VDE
CY - Berlin/Offenbach am Main
ET - 2
ER -
TY - JOUR
A1 - Uhl, Roland
T1 - Charakterisierung des Erwartungswertes am Graphen der Verteilungsfunktion
N2 - Der Erwartungswert einer Zufallsgröße kann generell am Graphen ihrer Verteilungsfunktion durch eine naheliegende Gleichheit zweier Flächeninhalte festgelegt werden. Äquivalent dazu lässt er sich mit zwei uneigentlichen Riemann-Integralen darstellen. Davon ausgehend werden die Tschebyschow-Ungleichung und ihre Modifikation mit strikten Ungleichheitszeichen hergeleitet.
KW - Erwartungswert
KW - Verteilungsfunktion
KW - Čebyšev-Ungleichung
KW - Wahrscheinlichkeitsrechnung
KW - Tschebyschow-Ungleichung
KW - Zufallsgröße
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-29862
PB - Technische Hochschule Brandenburg
CY - Brandenburg an der Havel
ER -
TY - CHAP
A1 - Grunwald, Guido
A1 - Schwill, Jürgen
A1 - Sassenberg, Anne-Marie
T1 - How to Choose the Fitting Partner in Sustainability Sponsorship? A Decision Model Integrating Multiple Fit Dimensions
T2 - Konferenz: 2021 AMS Virtual Annual Conference and World Marketing Congress, 2022/ Band: Celebrating the Past and Future of Marketing and Discovery with Social Impact 2021 AMS Virtual Annual Conference and World Marketing Congress
Y1 - 2023
SN - 978-3-030-95345-4
U6 - https://doi.org/10.1007/978-3-030-95346-1_157
SP - 465
EP - 477
PB - Springer Cham
ER -
TY - JOUR
A1 - Maurer, Robert
A1 - Eifert, Felix Friedrich
A1 - Annan, Tarek
T1 - Remote Work in Kooperationsprojekten - Fluch oder Segen?!
JF - Mittelstand-Digital Magazin - Wissenschaft trifft Praxis
N2 - Der vorliegende Beitrag befasst sich mit den Herausforderungen, die im Rahmen von Remote Work
in Kooperationen bezüglich der Informations- und
IT-Sicherheit bestehen, insbesondere im Hinblick auf
den sicheren Datenaustausch. Des Weiteren wird die
Wichtigkeit einer ganzheitlichen Sicht von IT-Governance-, Risiko- und Compliance-Management in Verbünden kleiner und mittlerer Unternehmen (KMU)
behandelt. Weiterhin wird aufgezeigt, was bei der
informationstechnischen Absicherung von Kooperationen und IT-Konsortien beachtet werden sollte.
Y1 - 2023
SN - 2198-8544
SN - 2198-9362
IS - 19/9
SP - 15
EP - 20
PB - Begleitforschung Mittelstand-Digital WIK GmbH
ER -
TY - GEN
A1 - Das, Atanu
A1 - Chaurasia, Prashtan Kumar
A1 - Mandal, Gopi K.
A1 - Goecke, Sven-Frithjof
A1 - De, Amitava
T1 - Sample calculations to estimate joint distortion based on the published article "Analytical Estimation of Thermomechanical Distortion and Interface Layer Thickness for Gas Metal Arc Lap Joining of Dissimilar Sheets"
N2 - A sample set of calculations is presented in this supplemental document to analytically estimate joint distortion for gas metal arc lap joining of aluminum and steel thin sheets following the published article "Analytical Estimation of Thermomechanical Distortion and Interface Layer Thickness for Gas Metal Arc Lap Joining of Dissimilar Sheets"
Y1 - 2023
ER -
TY - JOUR
A1 - Das, Atanu
A1 - Chaurasia, Prashtan Kumar
A1 - Mandal, Gopi K.
A1 - Goecke, Sven-Frithjof
A1 - De, Amitava
T1 - Analytical estimation of thermomechanical distortion and interface layer thickness for gas metal arc lap joining of dissimilar sheets
JF - Welding in the World
Y1 - 2023
U6 - https://doi.org/10.1007/s40194-01426-x
SN - 432288
IS - 76/2023
SP - 33
EP - 49
PB - Springer Link
ER -
TY - JOUR
A1 - Chaurasia, Prashtan Kumar
A1 - Goecke, Sven-Frithjof
A1 - De, Amitava
T1 - Monitoring melt pool asymmetry in gas metal arc-directed energy deposition
JF - Science and Technology of Welding and Joining
Y1 - 2023
U6 - https://doi.org/10.1080/13621718.2023.2168933
SN - 1362-1718 (PRINT)
IS - Augabe 5/ Band 28
SP - 424
EP - 432
PB - Taylor and Fracis
ER -
TY - JOUR
A1 - Chaurasia, Prashant Kumar
A1 - Goecke, Sven Frithjof
A1 - De, Amitava
T1 - Towards real-time monitoring of metal transfer and melt pool temperature field in gas metal arc directed energy deposition
JF - Welding in the World
N2 - Large three-dimensional metallic parts can be printed layer-by-layer using gas metal arc directed energy deposition (GMA-DED) process at a high deposition rate and with little or no material wastage. Fast responsive real-time monitoring of GMA-DED process signatures and their transient variations is required for printing of dimensionally accurate and structurally sound parts. A systematic experimental investigation is presented here on multi-layer GMA-DED with two different scanning strategies using a high strength low alloy (HSLA) filler wire. The dynamic metal transfer, melt pool temperature field and its longitudinal cross-section, and arc voltage and current are monitored synchronously. The transient arc heat input and the melt pool solidification cooling rate are estimated from the monitored signals. The layer-wise variations of the melt pool dimension, surface temperature profile, thermal cycles, and solidification cooling rate are examined for different scanning strategies. It is comprehended that the part defects can be minimized, and the mass production of zero-defect parts can be achieved in GMA-DED process with synchronized monitoring and assessment of the real-time process signatures.
Y1 - 2023
UR - https://link.springer.com/article/10.1007/s40194-023-01534-2
U6 - https://doi.org/https://doi.org/10.1007/s40194-023-01534-2
IS - 67
SP - 1781
EP - 1791
PB - Springer Link
ER -
TY - JOUR
A1 - Revina, Aleksandra
A1 - Aksu, Ünal
T1 - An approach for analyzing business process execution complexity based on textual data and event log
JF - Information Systems
N2 - With the advent of digital transformation, organizations increasingly rely on various information systems to support their business processes (BPs). Recorded data, including textual data and event log, expand exponentially, complicating decision-making and posing new challenges for BP complexity analysis in Business Process Management (BPM). Herein, Process Mining (PM) serves to derive insights based on historic BP execution data, called event log. However, in PM, textual data is often neglected or limited to BP descriptions. Therefore, in this study, we propose a novel approach for analyzing BP execution complexity by combining textual data serving as an input at the BP start and event log. The approach is aimed at studying the connection between complexities obtained from these two data types. For textual data-based complexity, the approach employs a set of linguistic features. In our previous work, we have explored the design of linguistic features favorable for BP execution complexity prediction. Accordingly, we adapt and incorporate them into the proposed approach. Using these features, various machine learning techniques are applied to predict textual data-based complexity. Moreover, in this prediction, we show the adequacy of our linguistic features, which outperformed the linguistic features of a widely-used text analysis technique. To calculate event log-based complexity, the event log and relevant complexity metrics are used. Afterward, a correlation analysis of two complexities and an analysis of the significant differences in correlations are performed. The results serve to derive recommendations and insights for BP improvement. We apply the approach in the IT ticket handling process of the IT department of an academic institution. Our findings show that the suggested approach enables a comprehensive identification of BP redesign and improvement opportunities.
Y1 - 2023
UR - https://www.sciencedirect.com/science/article/pii/S0306437923000200?via%3Dihub
U6 - https://doi.org/10.1016/j.is.2023.102184
IS - 114
PB - Elsevier
ER -
TY - CHAP
A1 - Revina, Aleksandra
A1 - Rizun, Nina
A1 - Aksu, Ünal
T1 - Towards a Framework for Context Awareness Based on Textual Process Data: Case Study Insights
T2 - Lecture Notes in Business Information Processing
N2 - Context awareness is critical for the successful execution of processes. In the abundance of business process management (BPM) research, frameworks exclusively devoted to extracting context from textual process data are scarce. With the deluge of textual data and its increasing value for organizations, it becomes essential to employ relevant text analytics techniques to increase the awareness of process workers, which is important for process execution. The present paper addresses this demand by developing a framework for context awareness based on process executions-related textual data using a well-established layered BPM context model. This framework combines and maps various text analytics techniques to the layers of the context model, aiming to increase the context awareness of process workers and facilitate informed decision-making. The framework is applied in an IT ticket processing case study. The findings show that contextual information obtained using our framework enriches the awareness of process workers regarding the process instance urgency, complexity, and upcoming tasks and assists in making decisions in terms of these aspects.
Y1 - 2023
SN - 978-3-031-26885-4 (Print) 978-3-031-26886-1 (online)
U6 - https://doi.org/https://doi.org/10.1007/978-3-031-26886-1_2
IS - 466
PB - Springer Cham
ER -
TY - BOOK
A1 - Tanski, Joachim
T1 - Compliance-Management
N2 - Dieses Buch bietet eine komprimierte und praxisorientierte Einführung in die Grundlagen und Anforderungen eines Compliance-Managements, um den Leser schnell mit aktuellen und zentralen Regelungen vertraut zu machen. Dabei wird auf gesetzliche und regulatorische Bestimmungen ebenso eingegangen wie auf betriebswirtschaftliche Notwendigkeiten, um Mitarbeitende und Unternehmen vor den schwerwiegenden Folgen von Compliance-Verstößen zu schützen.
Y1 - 2023
UR - https://link.springer.com/book/10.1007/978-3-658-40682-0
SN - 978-3-658-40681-3 (Softcover) 978-3-658-40682-0 (e-Book)
U6 - https://doi.org/https://doi.org/10.1007/978-3-658-40682-0
PB - Springer Gabler Wiesbaden
ET - 1
ER -
TY - CHAP
A1 - Tanski, Joachim
T1 - Limitierende Faktoren
T2 - Compliance-Management
N2 - Wie bei allen Risiken gibt es auch bei Compliance-Risiken kein Null-Risiko. Man wird in der Praxis noch nicht einmal in die unmittelbare Nähe einer Null kommen. Ein Null-Compliance-Risiko ist auch deshalb nicht erreichbar, weil sich ständig neue Risikofelder auftun. So beispielsweise durch Änderung von Geschäftsmodellen oder Vertriebswegen oder durch neue rechtliche Rahmenbedingen.
Y1 - 2023
UR - https://link.springer.com/chapter/10.1007/978-3-658-40682-0_4
U6 - https://doi.org/10.1007/978-3-658-40682-0_4
SP - 49
EP - 49
PB - Springer ebooks
ER -
TY - CHAP
A1 - Burger-Menzel, Bettina
T1 - Wirtschaftsförderung und E-Governance: Von der Resilienz zur Transformation?
T2 - Wirtschaftsförderung in der Krise
N2 - Unsere Welt verändert sich in unterschiedlichen Tempi und Verwerfungstiefen. Dies ist das einzig Verlässliche für Wirtschaft und Gesellschaft.
Zum einen zählt die kreative Zerstörung zum ‚Markenkern‘ marktwirtschaftlicher Systeme. Die Wirtschaftsakteure stehen dadurch an ihrem jeweiligen Standort unter einer Art (produktivem) Dauerstress. Es gibt Gewinner und Verlierer, weil Wettbewerber unterschiedlich erfolgreich kostensenkende Rationalisierungen, technischen Fortschritt und die Erschließung neuer (globaler) Märkte realisieren. Der damit einhergehende Strukturwandel gilt als wirtschaftssystemischer Normalzustand.
Zum anderen gibt es Krisen. Und auch ‚unter Schock‘ (re-)agieren Akteure ungleich, wie die Corona-Pandemie oder abrupte Veränderungen durch die Finanzkrise zeigen. Einige Akteure und Standorte bleiben mit ihrem jeweiligen Profil und Potenzial (weiterhin) produktiv widerstandsfähig. Für andere verschärfen sich der wirtschaftliche Niedergang und dessen Folgen für die Arbeitsmärkte und Lebensqualität der Betroffenen.
Regionale Wirtschaftsförderung unterstützt, dass sich die Wirtschaftsstrukturen an einem Standort überlebensfähig ausrichten. Doch kann sie auch beim Umgang mit Krisen einen Mehrwert erzielen und zählt dies überhaupt zu ihrem Regelauftrag? Und welche Rolle spielt die Digitalisierung? Der Beitrag stellt den sachlogischen Zusammenhang zwischen diesen Teilfragen her und ordnet neuere Ansätze ein. Zudem werden Ansatzstellen aufgezeigt, um die regionale Wirtschaftsförderung praxisorientiert weiterzuentwickeln. ‚Electronic Government‘ (E-Government) beschreibt dabei den Einsatz von Informationstechnik, Telekommunikation und Medien (ITKM) im öffentlichen Sektor, während ‚Electronic Governance‘ (E-Governance) hybride oder private Akteure miteinbezieht.
Der Beitrag ist wie folgt strukturiert: Zunächst werden Schlüsselbegriffe wie Strukturpolitik und Resilienz geklärt und mit den Kontextfaktoren verknüpft, welche die Steuerungslogik von Wirtschaftsförderung bestimmen. Danach wird diskutiert, inwiefern die Wirtschaftsförderung E-Government und E-Governance nutzen kann, um Resilienz zu stärken und möglichst transformativ wirken zu können.
Y1 - 2023
UR - https://link.springer.com/chapter/10.1007/978-3-658-41390-3_10
U6 - https://doi.org/10.1007/978-3-658-41390-3_10
SP - 171
EP - 196
PB - Springer Gabler
CY - Wiesbaden
ER -
TY - CHAP
A1 - Fitz, Lukas R. G.
A1 - Veldyaeva, Ekaterina
A1 - Teutenberg, Lukas
A1 - Scheeg, Michaela
A1 - Scheeg, Jochen
T1 - Puzzle away the Puzzledness: Action-Design Study of an Educational Escape Room for Intervention in SMEs’ Perception towards ICT Adoption
T2 - Konferenz: 57th Hawaii International Conference on System Sciences (HICSS); Honolulu, HI, USA
N2 - 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.
Y1 - 2023
UR - https://hdl.handle.net/10125/107027
SN - 978-0-9981331-7-1
SP - 5347
EP - 5356
ER -
TY - CHAP
A1 - Kramann, Guido
T1 - AOGscript – Design of a Stand-Alone Scripting Language for the Generation of Music. Proceedings of the International Symposium on Ubiquitous Music, 2023
T2 - Konferenz: 13th International Symposium on Ubiquitous Music 2023 (Ubimus23) , Ulster University, Derry~Londonderry, Northern Ireland, 2-4 November, 2023
N2 - 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.
Y1 - 2023
UR - https://zenodo.org/records/10670220
SN - 978-65-00-85069-7
U6 - https://doi.org/10.5281/zenodo.10670220
SP - 95
EP - 109
PB - Zenodo
ER -
TY - INPR
A1 - Tarassow, Artur
T1 - The potential of LLMs for coding with low-resource and domain-specific programming languages
N2 - 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.
Y1 - 2023
U6 - https://doi.org/10.48550/arXiv.2307.13018
SP - 1
EP - 27
ER -
TY - CHAP
A1 - Guido, Kramann
T1 - AOGscript, Generative Code as Conceptual Artwork: Giving Space to Astonishment. Proceedings of xCoAx 2023
T2 - Konferenz: xCoAx 2023 11th Conference on Computation, Communication, Aesthetics & X
Y1 - 2023
UR - https://2023.xcoax.org/xcoax2023.pdf
SN - 978-989-9049-52-9
U6 - https://doi.org/10.34626/xcoax.2023
SP - 401
EP - 408
PB - i2ADS
CY - Porto, Portugal
ER -
TY - INPR
A1 - Baeva, Gergana
A1 - Brunner, Robert
A1 - Elmas, Filiz
A1 - Fresz, Benjamin
A1 - Fuß, Christine
A1 - Heß, Claudia
A1 - Kellmeyer, Philipp
A1 - Mahner, Malin
A1 - Paulheim, Heiko
A1 - Poretschkin, Maximilian
A1 - Puntschuh, Michael
A1 - Seyerlein-Klug, Annegrit
T1 - Welche Zertifizierung ist hilfreich für Verbraucher*innen?
BT - Acht Thesen zu wirksamen freiwilligen Zertifikaten von KI-Produkten
N2 - 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 können. Zudem berücksichtigen wir Menschen in der Rolle als souveräne Datensubjekte, deren personenbezogene Daten in die Entwicklung von KI-Systemen einfließen. Dieses breite Verständnis des Verbraucher*innenbegriffs entspricht dem Selbstverständnis des Zentrums für vertrauenswürdige Künstliche Intelligenz (ZVKI). Wir stellen Thesen auf, wie freiwillige Zertifizierungen von KI-Systemen für Verbraucher*innen nützlich sein können. Die im Verlauf vorgestellten und begründeten acht Thesen wurden in einer Reihe von interdisziplinären Workshops erarbeitet. Dabei identifizierten wir Herausforderungen einer KI-Zertifizierung aus Verbraucher*innensicht und präzisierten 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 übergeordneten Perspektive, unabhängig von den spezifischen Details einer KI-Anwendung. Somit liefern sie keine Aussagen zu konkreten Inhalten der Zertifizierung. Detaillierte Empfehlungen setzen eine umfassende Analyse von Einsatzfällen voraus, die in diesem Rahmen nicht geleistet werden kann.
Y1 - 2023
U6 - https://doi.org/10.24406/publica-2132
ER -
TY - RPRT
A1 - Olschewski, Detlef
A1 - Bluhm, André
A1 - Firnkorn, Joerg
A1 - Lucieri, Adriano
A1 - Palacio, Sebastian
A1 - Streppel, Yeji
A1 - Zednik, Carlos
A1 - Görge, Rebekka
A1 - Poretschkin, Maximilian
A1 - Becker, Nikolas
A1 - Zielke, Thomas
A1 - Kruschel, Christian
A1 - Neumann-Brosig, Matthias
A1 - Bäuerle, Stephen
A1 - Eifert, Marton
A1 - López, Erik Martori
A1 - Assion, Felix
A1 - Seyerlein-Klug, Annegrit
A1 - Schmid, Ute
A1 - Haufe, Stefan
A1 - Gautier, Antoine
A1 - Bieringer, Lukas
A1 - Besold, Tarek R.
A1 - Cremers, Armin B.
T1 - DIN SPEC 92001-3 Artificial Intelligence - Life Cycle Processes and Quality Requirements - Part 3: Explainability
N2 - 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"
Y1 - 2023
PB - Beuth Verlag
ER -
TY - CHAP
A1 - Veldyaeva, Ekaterina
A1 - Fitz, Lukas R. G.
A1 - Scheeg, Jochen
T1 - Developing Digital Competencies in Small and Medium-Sized Enterprises Through Microlearning Applications: A Research Agenda
T2 - Konferenz: Perspectives in Business Informatics Research
22nd International Conference on Business Informatics Research, BIR 2023, Ascoli Piceno, Italy, September 13–15, 2023, Proceedings
N2 - 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.
Y1 - 2023
U6 - https://doi.org/10.1007/978-3-031-43126-5_7
SP - 41
EP - 58
ER -
TY - CHAP
A1 - Lemke, Claudia
A1 - Meister, Vera
A1 - Weßels, Doris
T1 - Kritische Reflexion und Handlungsansätze zum Einsatz Generativer KI in der Wirtschaftsinformatik-Lehre
T2 - 36. Jahrestagung des Arbeitskreises Wirtschaftsinformatik (AKWI)
N2 - Die digitalen Technologien verändern die Gesellschaft, auch die akademischen Wissen-schaftssysteme sind betroffen. Das erfordert verstärkte Überlegungen 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. Zunächst 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 führen zu Handlungsansätzen, insbesondere für Wirtschaftsinformatik-Studiengänge.
Y1 - 2023
ER -
TY - CHAP
A1 - Markgraf, Klaus
A1 - Dietrich, Benjamin
A1 - Müller, Katja
A1 - Flassig, Robert J
A1 - Flassig, Peter Michael
T1 - FINEconcepts - Wissenstransfer und Energiesystemoptimierung mithilfe des digitalen Zwillings
T2 - Konferenz: NWK 2023, HS Harz
N2 - 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.
Y1 - 2023
SP - 428
EP - 435
ER -
TY - BOOK
A1 - Brasche, Ulrich
T1 - Climate justice and the Global South - The road to solving climate change
N2 - 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.
Y1 - 2023
SN - Print 9783758302381
SN - Ebook 9783758398162
PB - Books on Demand
ER -
TY - CHAP
A1 - Fitz, Lukas R. G.
A1 - Scheeg, Jochen
T1 - Small Businesses Participating in Digital Platform Ecosystems - A Descriptive Literature Review
T2 - Digital Transformation. PLAIS EuroSymposium 2023. Lecture Notes in Business Information Processing
N2 - 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.
Y1 - 2023
U6 - https://doi.org/10.1007/978-3-031-43590-4_3
ER -
TY - CHAP
A1 - Fitz, Lukas R. G.
A1 - Scheeg, Jochen
T1 - What is Digital about Digital Innovation? An Ontological Discussion of Digitality
T2 - Konferenz: 29th Americas Conference on Information Systems
N2 - "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.
Y1 - 2023
PB - Panama City, Panama
ER -
TY - CHAP
A1 - Mingione, Michela
A1 - Kristal, Samuel
T1 - Brand value co-creation: field emergence, applications, measurement and future research directions
T2 - A Research Agenda for Brand Management in a New Era of Consumerism
Y1 - 2023
U6 - https://doi.org/10.4337/9781803925516.00013
SP - 89
EP - 106
PB - Edward Elgar Publishing
CY - Cheltenham, UK
ER -
TY - CHAP
A1 - Levina, Olga
A1 - Mattern, Saskia
T1 - Ethical and Legal Analysis of Machine Learning Based Systems: A Scenario Analysis of a Food Recommender System
T2 - Recommender Systems: Legal and Ethical Issues
N2 - 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.
Y1 - 2023
SN - 978-3-031-34806-8
SN - 978-3-031-34804-4
U6 - https://doi.org/10.1007/978-3-031-34804-4_9
SP - 165
EP - 185
ER -
TY - BOOK
A1 - Brasche, Ulrich
T1 - Auf dem Weg zu mehr Klimagerechtigkeit Im Bündnis mit dem Globalen Süden Widerstände überwinden
N2 - Die Menschen sind im Anthropozän auf einer gefährlichen Reise. Das Ziel steht noch nicht fest. Die Ankunft in einem guten Leben für alle innerhalb planetarer Grenzen ist immer noch möglich. Aber zurzeit führt die Reise eher zu einer Überhitzung der Erde. Gesundheit und Leben wären dann für viele Lebewesen – auch für den Menschen – massiv gefährdet. Das Buch behandelt die Fragen: • Wie sind wir in diese Lage geraten? • In welcher Richtung können Auswege liegen? • Welche Hindernisse sind zu überwinden? Es werden Strategien abgewogen und einige überraschende Bündnispartner identifiziert. Geschickt gestaltete Märkte können helfen, die Erderwärmung aufzuhalten. Nur in einer gleicheren und gerechteren Welt könnten alle Menschen gut, aber bescheidener leben. Die Alternative dazu wäre eine übererhitzte, gefährliche Welt. Eine gute Entwicklung ist noch möglich. Sie erfordert eine globale Transformation von Wirtschaft und Gesellschaft. Die wohlhabenden Staaten sind gut beraten, die Interessen des „Globalen Südens“ und der künftigen Generationen zu respektieren – auch durch den klugen Einsatz erheblicher Finanzmittel und eine Kooperation auf Augenhöhe.
Y1 - 2023
SN - 978-3-98726-045-2
U6 - https://doi.org/10.14512/9783987262746
PB - oekom-Verlag
CY - München
ER -
TY - CHAP
A1 - Levina, Olga
T1 - Operationalizing Ethics for Information Systems Design - A Tool for Ethical Software
T2 - Konferenz: Twenty-ninth Americas Conference on Information Systems (AMCIS), Panama, 2023
N2 - 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.
Y1 - 2023
UR - https://aisel.aisnet.org/amcis2023/sig_phil/sig_phil/5
ER -
TY - JOUR
A1 - Vega, Catherine Perez
A1 - Jechow, Andreas
A1 - James A., Campbell
A1 - Zielinska-Dabkowska, Karolina M.
A1 - Hoelker, Franz
T1 - Light pollution from illuminated bridges as a potential barrier for migrating fish-Linking measurements with a proposal for a conceptual model
JF - Basic and Applied Ecology
N2 - 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.
Y1 - 2023
UR - https://www.sciencedirect.com/science/article/pii/S1439179123000658?via%3Dihub
U6 - https://doi.org/10.1016/j.baae.2023.11.001
SN - 1618-0089
VL - 74
SP - 1
EP - 12
PB - Elsevier
ER -
TY - JOUR
A1 - Vollmer, Michael
T1 - So weit das Auge trägt
JF - Physik in unserer Zeit
N2 - Sichtweiten in der Atmosphäre reichen von wenigen Metern im Nebel bis zu einigen hundert Kilometern bei extrem guten Fernsichtbedingungen. Die zugrundeliegende Physik geht vom Wahrnehmungskontrast aus. Dieser ändert sich mit der Entfernung entlang der Sichtlinie zwischen Objekt und Auge aufgrund von Lichtstreuung und Absorption an den Bestandteilen der Atmosphäre. Dazu kommt bei der Fernsicht die Refraktion, die es erlaubt, auch über den durch die Kugelform der Erde geometrisch bedingten Horizont hinaus zu sehen.
Y1 - 2023
UR - https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/piuz.202301675
U6 - https://doi.org/10.1002/piuz.202301675
SN - 1521-3943
VL - 54
IS - 5
SP - 222
EP - 230
PB - Wiley
ER -
TY - INPR
A1 - Wendzel, Steffen
A1 - Caviglione, Luca
A1 - Mazurczyk, Wojciech
A1 - Mileva, Aleksandra
A1 - Dittmann, Jana
A1 - Krätzer, Christian
A1 - Lamshöft, Kevin
A1 - Vielhauer, Claus
A1 - Hartmann, Laura
A1 - Keller, Jörg
A1 - Neubert, Tom
A1 - Zillien, Sebastian
T1 - A Generic Taxonomy for Steganography Methods
N2 - 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.
Y1 - 2023
U6 - https://doi.org/10.36227/techrxiv.20215373.v1
ER -
TY - GEN
A1 - Stockhausen, Pablo
A1 - Johannsen, Andreas
A1 - Maurer, Robert
T1 - Machine-Learning Verfahren für eine nachhaltige Letzte-Meile-Logistik
N2 - Dieser Beitrag entwickelt ein Konzept zur praktischen Umsetzung eines Machine- Learning Verfahrens zum Lösen 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 überzeugt dabei in der Laufzeit und dem Automatismus. Es konnte festgestellt werden, dass eine Verwendung von Lernenden-Systemen für das Vehicle Routing Problem sich bei nur bei einem größeren Stoppvolumen und einer erweiterten IT-Infrastruktur empfiehlt.
Y1 - 2023
ER -
TY - CHAP
A1 - Stockhausen, Pablo
A1 - Johannsen, Andreas
A1 - Maurer, Robert
ED - Krupka, Daniel
ED - Federrath, Hannes
ED - Demmler, Daniel
T1 - Konzeption eines Machine-Learnings-Verfahrens zum Lösen von Green Vehicle Routing Problemen
T2 - Konferenz: Informatik 2022, Lecture Notes in Informatics (LNI), Bonn, 2022/ Konferenzband: Informatik 2022 Fachtagung vom 26.-30. September 2022, Hamburg/ Band: P-326
Y1 - 2023
SN - 978-3-88579-720-3
SP - 885
EP - 897
PB - Gesellschaft für Informatik
CY - Bonn
ER -
TY - JOUR
A1 - Braubach, Lars
A1 - Jander, Kai
T1 - 1. Introduction
JF - International Journal of Parallel, Emergent and Distributed Systems
Y1 - 2023
U6 - https://doi.org/10.1080/17445760.2023.2251386
SN - 1744-5779
VL - 38
IS - 6
SP - 459
EP - 460
PB - Taylor & Francis
ER -
TY - JOUR
A1 - Hasche, Eberhard
A1 - Karaschewski, Oliver
A1 - Creutzburg, Reiner
T1 - iPhone12 imagery in scene-referred computer graphics pipelines
JF - Electronic Imaging
N2 - 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].
Y1 - 2023
U6 - https://doi.org/10.2352/EI.2023.35.3.MOBMU-350
SP - 350-1
EP - 350-14
PB - Society for Imaging Science and Technology
ER -
TY - JOUR
A1 - Jaster, Daniel
A1 - Creutzburg, Reiner
A1 - Hasche, Eberhard
T1 - A qualitative study of LiDAR technologies and their application areas
JF - Electronic Imaging
N2 - 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.
Y1 - 2023
U6 - https://doi.org/10.2352/EI.2023.35.3.MOBMU-368
VL - 35
SP - 368-1
EP - 368-15
PB - Society for Imaging Science and Technology
ER -
TY - JOUR
A1 - Maleki, Maniya
A1 - Mohammadi, Mahdieh
T1 - Velocity and pressure functions of an oscillating flow in a circular Hele-Shaw cell
JF - Iranian Journal of Physics Research
N2 - 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.
Y1 - 2023
U6 - https://doi.org/10.47176/ijpr.22.1.81304
VL - 22
IS - 1
SP - 113
EP - 120
PB - Physics Society of Iran
ER -
TY - JOUR
A1 - Lachowski, Krzysztof
A1 - Hammermeister, Florian
A1 - Halenz, Bastian
A1 - Lieckefett, Florian
A1 - Götze, Thomas
A1 - Prill, Robert
A1 - Becker, Roland
T1 - The Patellostabilometer: A New Device for Quantification of Mediolateral Patella Displacement
JF - Sensors
N2 - 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.
Y1 - 2023
UR - https://www.mdpi.com/1424-8220/23/3/1274
U6 - https://doi.org/https://doi.org/10.3390/s23031274
IS - 23 (3)
PB - MDPI
ER -
TY - JOUR
A1 - Rizun, Nina
A1 - Revina, Aleksandra
A1 - Edelmann, Noella
T1 - Application of Text Analytics in Public Service Co-Creation: Literature Review and Research Framework
JF - DG.O 2023: The 24th Annual International Conference on Digital Government Research
N2 - 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.
Y1 - 2023
UR - https://dl.acm.org/doi/10.1145/3598469.3598471
U6 - https://doi.org/10.1145/3598469.3598471
SP - 12
EP - 22
PB - Association for Computing Machinery
ER -
TY - JOUR
A1 - Guterding, Daniel
T1 - Sparse Modeling Approach to the Arbitrage-Free Interpolation of Plain-Vanilla Option Prices and Implied Volatilities
JF - Risks
N2 - 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.
Y1 - 2023
UR - https://www.mdpi.com/2227-9091/11/5/83
U6 - https://doi.org/https://doi.org/10.3390/risks11050083
IS - 11 (5)
PB - MDPI AG
ER -
TY - JOUR
A1 - Stannarius, Ralf
A1 - Harth, Kirsten
T1 - The structure of disintegrating defect clusters in smectic C freely suspended films
JF - Soft Matter
N2 - 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.
Y1 - 2023
UR - https://pubs.rsc.org/en/content/articlelanding/2023/sm/d3sm00808h
U6 - https://doi.org/https://doi.org/10.1039/d3sm00808h
IS - 19
SP - 6109
EP - 6115
PB - Royal Society of Chemistry
ER -
TY - JOUR
A1 - Xu, Han-Xiang
A1 - Shimizu, Makoto
A1 - Guterding, Daniel
A1 - Otsuki, Junya
A1 - Jeschke, Harald O.
T1 - Pressure evolution of electronic structure and magnetism in the layered van der Waals ferromagnet CrGeTe3
JF - Physical Review B
N2 - 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.
Y1 - 2023
U6 - https://doi.org/https://doi.org/10.1103/PhysRevB.108.125142
IS - Vol. 108
PB - American Physical Society
ER -
TY - JOUR
A1 - Klopp, Christoph
A1 - Trittel, Torsten
A1 - Harth, Kirsten
A1 - Stannarius, Ralf
T1 - Coalescence of biphasic droplets embedded in free standing smectic A films
JF - Soft Matter
N2 - 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.
Y1 - 2023
UR - https://pubs.rsc.org/en/content/articlelanding/2024/sm/d3sm01549a
U6 - https://doi.org/10.1039/d3sm01549a
SN - 1744-683X
VL - 20
IS - 5
SP - 1036
EP - 1046
PB - Royal Society of Chemistry
ER -
TY - JOUR
A1 - Nagel, Michael
A1 - Schminder, Christian
ED - Erich Schmidt Verlag,
T1 - Sachbezogenes Verhandeln als Methode im Zielbildungsprozess von innovationsorientierten Public Private Partnerships.
JF - Ideen- und Innovationsmanagement
Y1 - 2023
U6 - https://doi.org/10.37307/j.2198-3151.2022.02.07
SN - 2198-3151
IS - 2
SP - 72
EP - 77
PB - Erich Schmidt Verlag GmbH & Co
ER -
TY - JOUR
A1 - Johannsen, Andreas
T1 - ERP-Einführung - Bewertung einer Standardimplementierungsmethode für SAP Business One
JF - ERP Management
Y1 - 2023
SN - 1860-6725
SP - 19
EP - 22
PB - GITO Verlag
ER -
TY - JOUR
A1 - Kuznetsov, Arthur
A1 - Frorip, Aleksandr
A1 - Sünter, Alar
A1 - Kasvand, Nensi
A1 - Korsakov, Vadim
A1 - Konoplev, Georgii
A1 - Stepanova, Oksana
A1 - Rusalepp, Linda
A1 - Anton, Dea
A1 - Püssa, Tõnu
A1 - Roasto, Mati
A1 - Abramova, Liubov
A1 - Kozin, Andrey
A1 - Toom, Lauri
A1 - Hirsch, Sören
A1 - Mukhin, Nikolay
ED - mdpi,
T1 - Fast Protein and Metabolites (Nucleotides and Nucleosides) Liquid Chromatography Technique and Chemical Sensor for the Assessment of Fish and Meat Freshness
JF - Chemosensors
N2 - 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.
Y1 - 2023
UR - https://www.mdpi.com/2227-9040/11/1/69
U6 - https://doi.org/10.3390/chemosensors11010069
SN - 2227-9040
IS - 1/2023 / Band 11
PB - MDPI
ER -
TY - JOUR
A1 - Mikhailov, Ivan Igorevich
A1 - Lamkin, I. A.
A1 - Degterev, Aleksandr
A1 - Degtereva, Mariya
A1 - Pavlova, Marina
A1 - Kurachkina, Marharyta
A1 - Tarasov, S. A.
A1 - Kuzmina, Ulyana
T1 - Фоточувствительные структуры с каскадными концентраторами излучения на основе коллоидных квантовых точек халькогенидов металлов
JF - Journal of the Russian Universities Radioelectronics
N2 - 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.
T2 - Photo-sensitive Structures with Cascade Radiation Concentrators Based on Colloidal Quantum Dots of Metal Chalcogenides
Y1 - 2023
U6 - https://doi.org/10.32603/1993-8985-2023-26-2-78-88
SN - 2658-4794
VL - 26
IS - 2
SP - 78
EP - 88
PB - Saint Petersburg Electrotechnical University
ER -
TY - RPRT
A1 - Reimann, Christoph
A1 - Shetty, Darshan
A1 - Klecha, Dominik
A1 - Munaf, Jasmin
A1 - Boateng, Newell
T1 - Absence of external resources in Germany
BT - An analysis about the deglobalization of resources in Germany based on the case studies oil and gas and rare earths
N2 - This scientific paper deals with the question of to what extent the deglobalization of raw materials will have an impact on Germany. For this purpose, a general understanding of the terms “globalization” and “deglobalization” will be provided. In addition, the drivers and challenges of (de)globalization are explained in more detail. The question was then examined based on specific case studies, which are decisive for today's prosperity and are predominantly imported. This includes gases, oils, and rare earths. The paper distinguishes between the effects of a loss of these resources on Germany, if the deglobalization takes place slowly and planned or unplanned and fast. The effects are then considered at three different levels: at the government level, at the corporate level, and at the population level. At the corporate level, the focus was primarily on the largest German industries. Each of the case studies ends with possible hypothetical scenarios that do not have to happen but could happen in the worst case. The scenarios show how bad things can get and provide an answer to the scientific question of how deglobalization in the case study could affect Germany.
KW - Natürliche Ressourcen
KW - Globalisierung
KW - Fallstudie
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-28928
ER -
TY - JOUR
A1 - Baecker, Christoph
A1 - Alabbadi, Osama
A1 - Yogiputra, Georgius Pradipta
A1 - Tien Dung, Nguyen
T1 - Threats provided by artificial intelligence that could disrupt the democratic system
N2 - This research paper examines the potential consequences of AI technology on democratic systems. The study focuses on two main areas: the weakening of the media and the emergence of "smart dictatorship." The paper examines the ways in which AI can be used to supervise, manipulate, and frustrate the media, thereby weakening its role as a check on government and corporate power. The study also explores how AI technology can be used to create an "omnidirectional monitoring" society, where individuals are constantly monitored and controlled through the use of "panopticon" techniques and "social bots". This can lead to the emergence of a "postdemocratic" society, characterized by growing inequality, dehumanization, and the
manipulation of information on online media platforms. The research methodology adopted in the study is qualitative, using expert interviews with three experts who
discussed the overall use of AI and its disruptive effects on democracy, such as the creation of fake news, filter bubbles, and algorithm bias. In conclusion, this research highlights the need for increased awareness and regulation of AI technology to ensure its responsible use and to protect democratic values.
KW - Künstliche Intelligenz
KW - Demokratie
KW - Wertordnung
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-28988
PB - Technische Hochschule Brandenburg
ER -
TY - THES
A1 - Garzón Gil, Zahira
A1 - Ingabire, Noella Arlette
A1 - Kibathi, Patrick
T1 - Disruption of Africa's education systems and economic development due to overpopulation
N2 - Education lies at the foot of economic growth and human development. However, an increase in population tends to put a strain on existing education systems, especially in Africa where most countries are characterized by slow economic development, rapid population growth rates and a median age just shy of 20 years. Due to the slow rate of economic growth, many African countries lack the financial capability to provide proper education for their ever-growing populations or even already overpopulated regions, many of which have people who have reached the appropriate school-going age. This leads to a series of disruptive impacts on the education systems resulting in a people who are poorly or improperly educated, and thus are not equipped with the necessary skills required for the vast technical, professional and ever modernizing high-skill job markets such as construction, economic and technical professions, teaching occupations and so on, all of which drive economic growth and development. Therefore, we can see that rapid population growth, if left unchecked, may lead to overpopulation scenarios which could have a negative disruptive impact on education and human development, both of which are important factors necessary for economic growth.
Key words: Population, education, Africa, poverty, economy, development.
KW - Übervölkerung
KW - Afrika
KW - Armut
KW - Demographie
Y1 - 2023
U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:522-opus4-28909
EP - 21 Seiten
ER -
TY - CHAP
A1 - Weretecki, Patrick
A1 - Kristal, Samuel
T1 - Brand Value Co-Creation bei der Deutschen Telekom- Das (neu) entdeckte Potential der regionalen Marketingkommunikation
T2 - Marketing-Management : Konzepte - Instrumente - Unternehmensfallstudien / Philip Kotler, Kevin Lane Keller, Alexander Chernev, Marc Oliver Opresnik ; Übersetzung: Anke Harrer, Oberschleißheim - 16. aktualisierte Aufl. - München: Pearson, 2023
Y1 - 2024
SN - 978-3-86894-443-3
SP - 363
EP - 368
PB - Pearson
ER -
TY - CHAP
A1 - Markgraf, Klaus
T1 - Entwicklung eines Tools zur spezifischen, lastgangbasierten Eigenverbrauchsoptimierung mittels PV-Leistungsprognose
T2 - Konferenz: 18. Symposium Energieinnovation, 2024, Graz/Austria
N2 - 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.
Y1 - 2024
U6 - https://doi.org/10.6084/m9.figshare.25610976
SP - 1
EP - 10
ER -
TY - JOUR
A1 - Ayalon, Inbal
A1 - Avisar, Dror
A1 - Jechow, Andreas
A1 - Levy, Oren
T1 - Corals nitrogen and carbon isotopic signatures alters under Artificial Light at Night (ALAN)
JF - The Science of The Total Environment
N2 - 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.
Y1 - 2024
U6 - https://doi.org/10.1016/j.scitotenv.2024.170513
IS - 920
PB - Elsevier
ER -
TY - JOUR
A1 - Trittel, Torsten
A1 - Puzyrev, Dmitry
A1 - Stannarius, Ralf
T1 - Platonic solids bouncing on a vibrating plate
JF - Physical Review E
N2 - 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.
Y1 - 2024
U6 - https://doi.org/10.1103/PhysRevE.109.034903
VL - 109
IS - 3
PB - American Physical Society
ER -
TY - JOUR
A1 - Kristal, Samuel
A1 - Weretecki, Patrick
T1 - Social first? Not always! Brand co-creation through regional marketing at Deutsche Telekom
JF - Transfer: Zeitschrift für Kommunikation & Markenmanagement
N2 - 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.
Y1 - 2024
VL - 70
IS - 1
SP - 67
EP - 71
PB - New Business Verlag
ER -
TY - JOUR
A1 - Catalano, Francesco
A1 - Nasello, Laura
A1 - Guterding, Daniel
T1 - Quantum Computing Approach to Realistic ESG-Friendly Stock Portfolios
JF - Risks
N2 - 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.
Y1 - 2024
UR - http://dx.doi.org/10.3390/risks12040066
U6 - https://doi.org/10.3390/risks12040066
SN - 2227-9091
VL - 12
IS - 4
SP - 1
EP - 12
PB - MDPI
ER -
TY - JOUR
A1 - Ochkov, V. F.
A1 - Kraska, Martin
A1 - Lukatsky, A. M.
T1 - Математический Анализ Трамвайных Путей
T1 - Mathematical Analysis of Tram Tracks
JF - Физика в школе
N2 - В статье рассказано, как необходимо
проектировать повороты железной дороги, чтобы не
было сильных боковых толчков. используются методы
математического анализа для решения задачи. пред-
ложена новая переходная кривая
N2 - The article explains how to design railroad
turns to minimize lateral jolts. mathematical analysis
methods are used to solve the problem. a new transi-
tion curve is proposed.
Y1 - 2024
UR - http://twt.mpei.ac.ru/OCHKOV/Physic-in-School-1-2024.pdf
U6 - https://doi.org/10.47639/0130-5522_2024_1_32
SP - 32
EP - 45
ER -
TY - JOUR
A1 - Arroyo, Hector Linares
A1 - Abascal, Angela
A1 - Degen, Tobias
A1 - Aubé, Martin
A1 - Espey, Brian R.
A1 - Gyuk, Geza
A1 - Hölker, Franz
A1 - Jechow, Andreas
A1 - Kuffer, Monika
A1 - Sánchez de Miguel, Alejandro
A1 - Simoneau, Alexandre
A1 - Walczak, Ken
A1 - Kyba, Christopher C. M.
T1 - Monitoring, trends and impacts of light pollution
JF - Nature Reviews Earth & Environment
N2 - Light pollution has increased globally, with 80% of the total population now living under light-polluted skies. In this Review, we elucidate the scope and importance of light pollution and discuss techniques to monitor it. In urban areas, light emissions from sources such as street lights lead to a zenith radiance 40 times larger than that of an unpolluted night sky. Non-urban areas account for over 50% of the total night-time light observed by satellites, with contributions from sources such as transportation networks and resource extraction. Artificial light can disturb the migratory and reproductive behaviours of animals even at the low illuminances from diffuse skyglow. Additionally, lighting (indoor and outdoor) accounts for 20% of global electricity consumption and 6% of CO2 emissions, leading to indirect environmental impacts and a financial cost. However, existing monitoring techniques can only perform a limited number of measurements throughout the night and lack spectral and spatial resolution. Therefore, satellites with improved spectral and spatial resolution are needed to enable time series analysis of light pollution trends throughout the night.
Y1 - 2024
U6 - https://doi.org/10.1038/s43017-024-00555-9
SP - 1
EP - 14
PB - Springer Nature
ER -
TY - JOUR
A1 - Vega, Catherine Perez
A1 - Hölker, Franz
A1 - Zielinska-Dabkowska, Karolina M
A1 - Jechow, Andreas
T1 - Polarised light pollution on river water surfaces caused by artificial light at night from illuminated bridges and surroundings
JF - Journal of Limnology
N2 - Artificial light at night originating from bridge illumination can cause polarised light pollution when it is reflected at water body surfaces. This alters the optical conditions of a river at night and potentially interferes with natural polarisation signals from, for example, moonlight. Therefore, this type of light pollution could detrimentally change the behaviour of organisms sensitive to polarised light, a navigational cue and signal known to be used e.g. by flying water-seeking insects to detect suitable aquatic habitats to reproduce and lay eggs. So far, polarised light pollution from artificial light at night is understudied. Here, we quantify polarised light pollution at the water’s surface near seven illuminated bridges crossing the river Spree in Berlin. Our measurements show for the first time, that nocturnal bridge illumination induces polarised light pollution towards potential flying paths of polarotactic aquatic insects. On average, around 9% of the water surfaces at the investigated bridges were highly polluted by polarised light, with values ranging between 3 and 12 % for each bridge. Thus, polarised light pollution from artificial light at night is an emergent pollutant for aquatic systems. Future work on this topic should include more comprehensive measurements, further ecological studies on its impacts and the development of sustainable lighting solutions that can contribute to the protection of riverine nightscapes.
Y1 - 2024
U6 - https://doi.org/10.4081/jlimnol.2024.2173
VL - 83
SP - 1
EP - 13
PB - PAGEPress
ER -
TY - JOUR
A1 - Jechow, Andreas
T1 - Let there be Skyglow - light pollution from a large outdoor music festival (Lollapalooza Berlin 2016)
JF - Scientific Reports
N2 - Live music is often linked to elaborate light shows, particularly at large outdoor music festivals. However, artificial light at night is one form of environmental pollution, light pollution, and because outdoor festivals emit a substantial amount of artificial light into the environment, they are a potential source of light pollution. So far, no studies that quantified the impact of such festivals on urban light pollution and skyglow exist. Here, the light pollution produced by a major rock festival (Lollapalooza Berlin 2016 with 70,000 visitors per day in an urban park) was investigated with ground-based radiometry and night-time light data. A small night-sky radiometer installed near the main stages and a calibrated digital camera from a nearby observation spot inside of the park were used to quantify changes in night sky brightness and direct light emissions within the park. The impact of the music festival on the urban skyglow was indeed measurable. Zenith luminance increased locally by up to a factor of 8 and illuminance increased by about 50% at the observation spot within the park. The radiance detected by night-time satellite was also increased during the festival. This is the first time, that light pollution from such a major rock music event was quantified.
Y1 - 2024
U6 - https://doi.org/10.1038/s41598-024-62448-7
VL - 14
SP - 1
EP - 10
PB - Springer Nature
ER -
TY - JOUR
A1 - Klopp, Christoph
A1 - Trittel, Torsten
A1 - Stannarius, Ralf
T1 - Coarsening of Quasi Two-Dimensional Emulsions Formed by Islands in Free-Standing Smectic Films
JF - CHEMPHYSCHEM
N2 - We study the coarsening behavior of assemblies of islands on smectic A freely suspended films in ISS microgravity experiments. The islands can be regarded as liquid inclusions in a two-dimensional fluid in analogy to liquid droplets of the discontinuous phase of an emulsion. The coarsening is effectuated by two processes, predominantly by island coalescence, but to some extend also by Ostwald ripening, whereby large islands grow at the expense of surrounding smaller ones. A peculiarity of this system is that the continuous and the discontinuous phases consist of the same material. We determine the dynamics, analyze the self-similar aging of the island size distribution and discuss characteristic exponents of the mean island growth.
Smectic islands on a thin freely suspended smectic film form a quasi two-dimensional emulsion, without a liquid subphase. We describe the coarsening dynamics that involves island coalescence and Ostwald ripening.
Y1 - 2024
U6 - https://doi.org/10.1002/cphc.202400166
SN - 1439-4235
SP - 1
EP - 13
PB - Wiley
ER -
TY - CHAP
A1 - Hagen, Dirk
A1 - Hasche, Eberhard
A1 - Creutzburg, Reiner M.
T1 - The 300th anniversary of Immanuel Kant: opportunities and challenges of the mega-event with ethically oriented XR and VFX
T2 - SPIE Defense + Commercial Sensing, 2024, National Harbor, Maryland, United States
N2 - The 300th birthday of the world-famous German philosopher Immanuel Kant (1724-1804) in 2024 offers an extraordinary opportunity to explore integrating advanced technologies into cultural mega-events. This paper examines the opportunities and challenges of using various technologies, such as Extended Reality (XR) and Visual Effects (VFX), to bring this essential European intellectual to a broader audience. These technologies, including technological advances based on real-time rendering in conjunction with LED volumes and high-quality 3D assets, offer immersive and interactive event experiences. However, the use of these technologies presents specific challenges, such as processing limitations and the need to create specialized content, including the development of 3D models relevant to the life and philosophy of Immanuel Kant. This article provides an overview of the current state of such opportunities and challenges and examines their application in the context of this cultural mega-event. The aim is to create a compelling event experience, e.g., as part of a museum visit, while simultaneously using technology in a meaningful educational way. It is essential not to overload historical and intellectual personalities such as Immanuel Kant with technological possibilities in the sense of an ethical responsibility. At the same time, the creation and communication of knowledge require explanation in a museum context or another explanatory framework.
Y1 - 2024
U6 - https://doi.org/10.1117/12.3025603
SP - 193
EP - 204
ER -
TY - JOUR
A1 - Dietenberger, Manuel
A1 - Jechow, Andreas
A1 - Kalinkat, Gregor
A1 - Schroer, Sibylle
A1 - Saathoff, Birte
A1 - Hölker, Franz
T1 - Reducing the fatal attraction of nocturnal insects using tailored and shielded road lights
JF - communications biology
N2 - The attraction of insects to artificial light is a global environmental problem with far-reaching implications for ecosystems. Since light pollution is rarely integrated into conservation approaches, effective mitigation strategies towards environmentally friendly lighting that drastically reduce insect attraction are urgently needed. Here, we tested novel luminaires in two experiments (i) at a controlled experimental field site and (ii) on streets within three municipalities. The luminaires are individually tailored to only emit light onto the target area and to reduce spill light. In addition, a customized shielding renders the light source nearly invisible beyond the lit area. We show that these novel luminaires significantly reduce the attraction effect on flying insects compared to different conventional luminaires with the same illuminance on the ground. This underlines the huge potential of spatially optimized lighting to help to bend the curve of global insect decline without compromising human safety aspects. A customized light distribution should therefore be part of sustainable future lighting concepts, most relevant in the vicinity of protected areas.
Y1 - 2024
U6 - https://doi.org/10.1038/s42003-024-06304-4
VL - 7
SP - 1
EP - 12
ER -
TY - CHAP
A1 - Veldyaeva, Ekaterina
A1 - Fitz, Lukas R. G.
A1 - Scheeg, Jochen
T1 - Gamifying IT Service Management Education for Future IT Professionals
T2 - Pacific Asia Conference on Information Systems, Ho Chi Minh City, Vietnam, 2024
N2 - IT Service Management (ITSM) education is nowadays an established subject of IT-related higher education programs worldwide. The recent years have witnessed significant developments in software and ITSM frameworks, which underscores the importance of adapting educational formats to meet the latest standards. Recent developments include the introduction of practice-oriented approaches and case-based learning. Building upon previous literature, this study describes and evaluates the first iteration of a teaching case integrating a simulation game for practicing ITIL® 4 foundations in an undergraduate ITSM curriculum. The game-based approach shows scalability and dynamism, fostering high student engagement and content comprehension. It represents a promising avenue for training IT workers and contributes to ongoing ITSM education development.
Y1 - 2024
UR - https://aisel.aisnet.org/cgi/viewcontent.cgi?article=1066&context=pacis2024
SP - 1
EP - 9
ER -
TY - CHAP
A1 - Kraska, Martin
T1 - SMath + Maxima - Powerful Tool for Engineering Calculations
T2 - 2024 7th International Conference on Information Technologies in Engineering Education (Inforino), Moscow, Russian Federation
N2 - SMath Studio is mathematical notebook software similar to Mathcad. Its outstanding and intuitive support for scientific units makes it an invaluable asset in higher engineering education. SMath Studio has been used for more than ten years in various courses at Brandenburg University of Applied Sciences, Germany (Technische Hochschule Brandenburg, THB). To enhance the usability of the software, substantial contributions have been made. One of them is the Maxima plugin for access to the free and open-source computer algebra system Maxima. This plugin combines the flexible notebook format of SMath Studio with powerful symbolic functions like integrals and solvers for algebraic and differential equations. Additionally, the plugin adds interactive 3D graphics to SMath. The paper discusses the basic design, features, and limitations, and showcases some applications.
Y1 - 2024
SN - 979-8-3503-7136-9
U6 - https://doi.org/10.1109/Inforino60363.2024.10551993
SP - 1
EP - 5
PB - IEEE
ER -