TY - JOUR A1 - Benim, Ali Cemal A1 - Diederich, Michael T1 - Prediction of Roughness Effects on Wind Turbine Aerodynamics JF - E3S Web of Conferences KW - DOAJ Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27775 SN - 2267-1242 VL - 128 PB - edp sciences ER - TY - JOUR A1 - Benim, Ali Cemal A1 - Pfeiffelmann, Björn T1 - Prediction of hydrogen flame propagation in a channel with exit contraction JF - E3S Web of Conferences KW - DOAJ Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27806 SN - 2267-1242 VL - 128 IS - 01013 PB - edp sciences ER - TY - JOUR A1 - Benim, Ali Cemal A1 - Pfeiffelmann, Björn T1 - Prediction of burning velocity and quenching distance of hydrogen flames JF - E3S Web of Conferences KW - DOAJ Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27790 SN - 2267-1242 VL - 128 PB - edp sciences ER - TY - JOUR A1 - Bhattacharyya, Suvanjan A1 - Gobinda Das, Sampad A1 - Chattopadhyay, Himadri A1 - Benim, Ali Cemal A1 - Moghimi, M. A. T1 - Transport Phenomenon of Simultaneously Developing Flow and Heat Transfer in Twisted Sinusoidal Wavy Microchannel under Pulsating Inlet Flow Condition JF - E3S Web of Conferences Y1 - 2019 U6 - https://doi.org/10.1051/e3sconf/201912801011 VL - 128 PB - edp sciences ER - TY - JOUR A1 - Basaran, Anil A1 - Benim, Ali Cemal A1 - Yurddas, Ali T1 - Prediction of heat and fluid flow in microchannel condensation JF - E3S Web of Conferences KW - DOAJ Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27768 SN - 2267-1242 VL - 128 PB - edp sciences ER - TY - JOUR A1 - Möllmann, Anne A1 - Hunger, Antje A1 - Dusend, Christina A1 - van den Hout, Marcel A1 - Buhlmann, Ulrike T1 - Gazing at facial features increases dissociation and decreases attractiveness ratings in non-clinical females - A potential explanation for a common ritual in body dysmorphic disorder JF - PloS one N2 - Rituals, such as gazing at faces, are common in body dysmorphic disorder (BDD) and appear in cognitive-behavioral models as a maintaining factor. Rituals are also common in obsessive-compulsive disorder (OCD). In contrast to OCD, the proposed associations between rituals and intrusive thoughts/appearance preoccupation have not been empirically investigated for BDD. We examined if the assumed effect of gazing rituals on attractiveness ratings exists and if it is associated with dissociation. In an experiment, we asked N = 65 non-clinical females to focus on the nose of a photographed face at pre- and post-test. In between, participants gazed at the nose of either the same (relevant gazing) or another face (irrelevant gazing). We found increasing dissociation after gazing in both conditions and a differentially stronger decrease of attractiveness ratings in the relevant gazing condition. Our findings support the hypothesized effect of gazing rituals on attractiveness evaluation in cognitive-behavioral models for BDD. Y1 - 2019 U6 - https://doi.org/10.1371/journal.pone.0219791 VL - 14 IS - 7 PB - PLoS ER - TY - CHAP A1 - Wilczek, Tobias A1 - Steffens, Jochen A1 - Weinzierl, Stefan ED - Lautenbach, Margriet ED - Witew, Ingo B. ED - de Vries, Diemer ED - Hornikx, Maarten T1 - Room acoustics, soundscapes and customer satisfaction in restaurants – a field study T2 - Proceedings of the International Symposium on Room Acoustics (ISRA) 2019, Amsterdam, Netherlands. Y1 - 2019 SN - 978-90-9032895-9 U6 - https://doi.org/10.18154/RWTH-CONV-240148 SP - 854 EP - 857 PB - Nederlands Akoestisch Genootschap CY - Heerde ER - TY - CHAP A1 - Steffens, Jochen A1 - Müller, Franz A1 - Schulz, Melanie A1 - Gibson, Samuel T1 - Cognitive load influences the evaluation of complex acoustical scenarios T2 - Proceedings of the 23rd International Congress on Acoustics Y1 - 2019 SN - 978-3-939296-15-7 U6 - https://doi.org/10.18154/RWTH-CONV-239577 PB - Deutsche Gesellschaft für Akustik e.V. CY - Aachen ER - TY - CHAP A1 - Luizard, Paul A1 - Steffens, Jochen A1 - Weinzierl, Stefan ED - Lautenbach, Margriet ED - Witew, Ingo B. ED - de Vries, Diemer ED - Hornikx, Maarten T1 - Adaptation of singers to physical and virtual room acoustics T2 - Proceedings of the International Symposium on Room Acoustics (ISRA) 2019, Amsterdam, Netherlands. Y1 - 2019 SN - 978-90-9032895-9 U6 - https://doi.org/10.18154/RWTH-CONV-240115 PB - Nederlands Akoestisch Genootschap CY - Heerde ER - TY - CHAP A1 - Jakobs, Christoph A1 - Böldt, Sebastian A1 - Selbach, Dustin A1 - Steffens, Jochen T1 - Extreme response style in listening tests T2 - Proceedings of the 23rd International Congress on Acoustics: integrating 4th EAA Euroregio 2019 : 9-13 September 2019 in Aachen, Germany Y1 - 2019 SN - 978-3-939296-15-7 U6 - https://doi.org/10.18154/RWTH-CONV-239966 CY - Aachen ER - TY - JOUR A1 - Eurich, Bernhard A1 - Klenzner, Thomas A1 - Oehler, Michael T1 - Impact of room acoustic parameters on speech and music perception among participants with cochlear implants JF - Hearing research Y1 - 2019 U6 - https://doi.org/10.1016/j.heares.2019.03.012 VL - 377 SP - 122 EP - 132 PB - Elsevier ER - TY - JOUR A1 - Adamatzky, Andrew A1 - Schnauß, Jörg A1 - Huber, Florian T1 - Actin droplet machine JF - Royal Society Open Science N2 - The actin droplet machine is a computer model of a three-dimensional network of actin bundles developed in a droplet of a physiological solution, which implements mappings of sets of binary strings. The actin bundle network is conductive to travelling excitations, i.e. impulses. The machine is interfaced with an arbitrary selected set of k electrodes through which stimuli, binary strings of length k represented by impulses generated on the electrodes, are applied and responses are recorded. The responses are recorded in a form of impulses and then converted to binary strings. The machine's state is a binary string of length k: if there is an impulse recorded on the ith electrode, there is a '1' in the ith position of the string, and '0' otherwise. We present a design of the machine and analyse its state transition graphs. We envisage that actin droplet machines could form an elementary processor of future massive parallel computers made from biopolymers. Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-34675 UR - http://www.ncbi.nlm.nih.gov/pubmed/31903204 SN - 2054-5703 N1 - A.A. was partially supported by EPSRC grant no. EP/P016677/1. The authors declare that they have no competing interests. VL - 6 IS - 12 PB - Royal Soc. Publ. ER - TY - JOUR A1 - Adamatzky, Andrew A1 - Huber, Florian A1 - Schnauß, Jörg T1 - Computing on actin bundles network JF - Scientific Reports N2 - Actin filaments are conductive to ionic currents, mechanical and voltage solitons. These travelling localisations can be utilised to generate computing circuits from actin networks. The propagation of localisations on a single actin filament is experimentally unfeasible to control. Therefore, we consider excitation waves propagating on bundles of actin filaments. In computational experiments with a two-dimensional slice of an actin bundle network we show that by using an arbitrary arrangement of electrodes, it is possible to implement two-inputs-one-output circuits. Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-34665 UR - http://www.ncbi.nlm.nih.gov/pubmed/31685834 SN - 2045-2322 VL - 9 IS - 1 PB - Springer Nature ER - TY - JOUR A1 - Migueles, Jairo H. A1 - Rowlands, Alex V. A1 - Huber, Florian A1 - Sabia, Séverine A1 - van Hees, Vincent T. T1 - GGIR: A Research Community–Driven Open Source R Package for Generating Physical Activity and Sleep Outcomes From Multi-Day Raw Accelerometer Data JF - Journal for the Measurement of Physical Behaviour Y1 - 2019 U6 - https://doi.org/10.1123/jmpb.2018-0063 SN - 2575-6605 VL - 2 IS - 3 SP - 188 EP - 196 PB - Human Kinetics ER - TY - JOUR A1 - El-Qasem, Kawthar T1 - Oral transmission as meta-occupation: The significance of historically passed on meanings of everyday life in processes of deculturalization JF - Journal of Occupational Science Y1 - 2019 U6 - https://doi.org/10.1080/14427591.2019.1608843 SN - 2158-1576 VL - 26 IS - 2 SP - 275 EP - 293 PB - Taylor & Francis ER - TY - THES A1 - Ebel, Anke Elisabeth T1 - Färbergärten als Grundlage für die Konzeption eines interdisziplinären Hochschulprojektes zur Förderung einer Bildung für nachhaltige Entwicklung T3 - Hervorragende Abschlussarbeiten im Fachbereich Sozial- und Kulturwissenschaften - 107 KW - Master Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-37052 CY - Düsseldorf ER - TY - THES A1 - Leuer, Sebastian T1 - Sharper Crypto-API Analysis: Entwicklung eines integrierten Plugins zur statischen Code-Analyse der Nutzung von Krypto-APIs in C# N2 - Untersuchungen haben ergeben, dass bis zu 95% aller verfügbaren Android Apps mindestens einen Programmierfehler bei der Verwendung von sogenannten Krypto-APIs besitzen. Bei korrekter Anwendung dieser APIs können mit ihnen sensible System- und Benutzerdaten vor Angriffen geschützt werden. Bisher gibt es nur wenige verfügbare Tool-basierte Hilfsmittel für Programmierer, welche die Verwendungsfehler identifzieren können. Für die Programmiersprache Java konnten bislang nur sehr wenige dieser spezialisierten Hilfsmittel gefunden werden, darunter das statische Codeanalysetool CogniCrypt. Ein derartiges Werkzeug für C# konnte nicht gefunden werden. Diese Arbeit befasst sich mit der Entwicklung eines Plugins für die IDE Visual Studio zur statischen Codeanalyse namens Sharper Crypto-API Analysis. Sein Hauptziel ist, Programmierern beim Verwenden der .NET Krypto-API mit der Programmiersprache C# zu unterstützen. Durch Beobachtungen im Entwicklungsprozess sollen einerseits die Parallelen und Unterschiede zwischen der Java- und der C#-Welt im Umgang mit Krypto-APIs erkennbar werden. Andererseits beschreibt diese Arbeit den erforderlichen Aufwand, um ein hoch spezialisiertes, statisches Codeanalysetool zu entwickeln. Die Beobachtungen zeigen, dass die Unterschiede der Java- und C#-Technologien nicht oberflächlich, sondern hauptsächlich im Detail liegen und daher während der Implementierung des Tools besondere Aufmerksamkeit erfordern. Die Entwicklungsphase selbst zeigt sich als besonders anspruchsvoll, da mit Unsicherheitsfaktoren bezüglich der Funktions- und Verhaltensweisen von Visual Studio umgegangen werden müssen. Das Hauptziel von Sharper Crypto-API Analysis konnte durch die Implementation von vier Hauptfunktionsgruppen umgesetzt werden. Die wichtigste von ihnen ist das Bereitstellen von Codeanalysen, welche ausschließlich auf die Verwendung der .NET Krypto-API spezialisiert sind. Die hier entwickelten Codeanalysen betrachten besonders Fehlerquellen, die Programmierer am häufigsten begehen. Um den Programmierern nachhaltig Wissen bezüglich der Krypto-API zu vermitteln, führt diese Arbeit erweiterte Analyseberichte ein, die zusätzlich über Schwachstellen oder Angriffsszenarien informieren. Besonderheiten und Alleinstellungsmerkmale der anderen Funktionsgruppen werden in dieser Arbeit unter besonderer Berücksichtigung von Implementationshinweisen dokumentiert. N2 - Recent researches have shown that up to 95% of all available Andriod Apps contain at least one programming error caused by wrongly applying so-called Crypto-APIs. By using these APIs, applications can ensure protection of sensitive data against attacks. Currently there is a very limited amount of program-based tools available which help programmers identifying their mistakes in using Crypto-APIs. The programming language Java seems to be most prominent as many of the few tools found are specialized for this language. One of them is called CogniCrypt. A specialized tool for the C# programming language however could not be found. The thesis at hand addresses the development of a static code analysis plugin for the IDE Visual Studio called Sharper Crypto-API Analysis. To assist programmers using the .NET Crypto-API in C# shall be its main goal. Observations during the development process shall point out differences between the Java and C# ecosystems in handling Crypto-APIs. Furthermore the work at hand describes the necessary expenditure to develop a static code analysis tool. On the one hand the observations show differences between Java and C#, which only become obvious after a careful examination. Hence, attention must be paid during the implmentation of the tool. On the other hand the development process revealed itsself to be challenging because of unpredictable and undocumented behaviour of the host platform Visual Studio. The main goal of Sharper Crypto-API Analysis could be achieved by implementing four primary function classes. The most important class contains code analyzers which investigate exspecially the usage of the .NET Crypto-API. In particular the analysis specialized at errors which programmers tend to do most commonly. In addition to analyzing bare source code the tool also presents more detailed reports that shall help programmers to understand weaknesses and attacks their code allows to perform and most importantly how to fix the identified issues. Lastly this work will also document the other function classes and point out their features and behaviours with a special consideration on implementation details. KW - Krypto-API KW - C# KW - Plug in KW - Statische Analyse Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-16430 CY - Düsseldorf ER - TY - THES A1 - Wolff, Philipp-Sebastian T1 - Ein Tutorial über die Erstellung einer Microservicearchitektur in einer Continuous Delivery Umgebung basierend auf Best-Practice N2 - Die Digitalisierung fordert kontinuierlich neue Services für bestehende Produkte, revolutioniert Produktionsmethoden und verändert Geschäftsmodelle. Continuous Delivery bietet in der agilen Softwareentwicklung mit kurzen Entwicklungszyklen die Antwort auf diesen Wandel. Die Verwendung einer Continuous Delivery-Umgebung (CD-Umgebung) erfordert einerseits zwar einen initialen Einrichtungsaufwand. Andererseits kann durch den Einsatz einer CD-Umgebung das gesamte Projekt an Schnelligkeit gewinnen. In Kombination mit Microservice-Architekturen lassen sich kleine Deployment-Einheiten umsetzen. Microservice-Architekturen bringen einen Mehrwert durch Flexibilität, Skalierung, Automatisierung, standardisierte Schnittstellen und Ausfallsicherheit. Microservices fungieren autark in verteilten Systemen und weisen nur sehr geringe Abhängigkeiten zu anderen Services auf. Die Kommunikation findet über einheitliche Schnittstellen statt, weshalb Implementierungsdetails der Microservices nach außen betrachtet irrelevant sind. Für die Umsetzung der CD-Umgebung wird der web-basierte Git-Repository-Manager GitLab in Kombination mit der Container-Orchestrierungsplattform Kubernetes verwendet, da sich beide Programme einfach integrieren lassen. Innerhalb eines Tutorials wird, basierend auf Best Practices anhand des Beispiels der HSD-Card, erläutert wie eine Microservice-Architektur mit Spring Boot, als Anwendung umgesetzt werden kann. Für die Erstellung der Microservice-Architektur legt das Tutorial Schwerpunkte auf die Verwendung von Software Design Pattern (DDD), die Struktur innerhalb Spring Boot, die Kommunikation via REST sowie die Skalierung, das Load-Balancing und die Überführung in die CD-Umgebung. KW - Microservice Continuous Delivery Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-19437 CY - Düsseldorf ER - TY - JOUR A1 - Biedermann, Till M. A1 - Reich, Marius A1 - Kameier, Frank A1 - Adam, Mario T1 - Assessment of statistical sampling methods and approximation models applied to aeroacoustic and vibroacoustic problems JF - Advances in Aircraft and Spacecraft Science KW - artificial neural networks KW - design of experiments KW - Latin hypercube sampling KW - aeroacoustics KW - aerodynamics KW - spectral analysis Y1 - 2019 UR - http://www.techno-press.org/content/?page=article&journal=aas&volume=6&num=6&ordernum=7 U6 - https://doi.org/10.12989/aas.2019.6.6.531 SN - 2287-528X VL - 6 IS - 6 SP - 529 EP - 550 PB - Techno Press ER - TY - JOUR A1 - Benim, Ali Cemal A1 - Frank, Thiemo A1 - Assmann, Alexander A1 - Lichtenberg, Artur A1 - Akhyari, Payam T1 - Computational investigation of hemodynamics in hardshell venous reservoirs: A comparative study JF - Artificial Organs N2 - Extracorporeal circulation using heart‐lung‐machines is associated with a profound activation of corpuscular and plasmatic components of circulating blood, which can also lead to deleterious events such as systemic inflammatory response and hemolysis. Individual components used to install the extracorporeal circulation have an impact on the level of activation, most predominantly membrane oxygenators and hardshell venous reservoirs as used in extracorporeal systems. The blood flows in two different hardshell reservoirs are computationally investigated. A special emphasis is placed on the prediction of an onset of transition and turbulence generation. Reynolds‐averaged numerical simulations (RANS) based on a transitional turbulence model, as well as large eddy simulations (LES) are applied to achieve an accurate prediction. In the LES analysis, the non‐Newtonian behavior of the blood is considered via the Carreau model. Blood damage potential is quantified applying the Modified Index of Hemolysis (MIH) based on the predicted flow fields. The results indicate that the flows in both reservoirs remain predominantly laminar. For one of the reservoirs, considerable turbulence generation is observed near the exit site, caused by the specific design for the connection with the drainage tube. This difference causes the MIH of this reservoir to be nearly twice as large as compared to the alternative design. However, a substantial improvement of these performance criteria can be expected by a local geometry modification. Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-29070 SN - 1525-1594 VL - 44 IS - 4 SP - 411 EP - 418 PB - Wiley ER -