@article{DeckertSchomaker2022, author = {Deckert, Carsten and Schomaker, Rahel M.}, title = {Cultural tightness-looseness and national innovativeness: impacts of tolerance and diversity of opinion}, series = {Journal of Innovation and Entrepreneurship}, volume = {11}, journal = {Journal of Innovation and Entrepreneurship}, publisher = {Springer Nature}, issn = {2192-5372}, doi = {10.1186/s13731-022-00219-2}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-36515}, pages = {1 -- 19}, year = {2022}, abstract = {The links between innovativeness as a driver of economic performance, and the determinants of innovativeness have been investigated by management scholars and economists for decades, focusing mostly on "hard factors" as investment in research and development, or education. Focusing on a relatively neglected, but in times of globalization even more important aspect, the infuence of cultural characteristics on innovativeness, we apply diferent econometric models to test for links between cultural tightness and looseness on the one hand, and national innovativeness on the other hand. We fnd that cultural tightness—in the sense of homogenous and intolerant societies—has a negative link to national innovativeness, while cultural looseness—in the sense of tolerant and diverse societies—displays a positive link to national innovativeness.}, subject = {Innovation}, language = {en} } @article{HeizmannBraunGlitzneretal.2022, author = {Heizmann, Michael and Braun, Alexander and Glitzner, Markus and G{\"u}nther, Matthias and Hasna, G{\"u}nther and Kl{\"u}ver, Christina and Krooß, Jakob and Marquardt, Erik and Overdick, Michael and Ulrich, Markus}, title = {Implementing machine learning: chances and challenges}, series = {at - Automatisierungstechnik}, volume = {70}, journal = {at - Automatisierungstechnik}, number = {1}, publisher = {De Gruyter}, address = {Berlin}, issn = {2196-677X}, doi = {10.1515/auto-2021-0149}, pages = {90 -- 101}, year = {2022}, language = {en} } @incollection{DeckertSchomakerKnappitsch2022, author = {Deckert, Carsten and Schomaker, Rahel and Knappitsch, Eithne}, title = {Cultural Impacts on National Innovativeness and Entrepreneurship}, series = {Innovation and entrepreneurship : theory and practice}, booktitle = {Innovation and entrepreneurship : theory and practice}, editor = {Poznańska, Krystyna and Szczepańska-Woszczyna, Katarzyna and Michałek, Janusz}, publisher = {WSB University}, address = {Dąbrowa G{\´o}rnicza}, isbn = {9788366794306}, pages = {57 -- 84}, year = {2022}, language = {en} } @incollection{SchomakerLobnigDeckert2022, author = {Schomaker, Rahel M. and Lobnig, Christina A. and Deckert, Carsten}, title = {Soziale Innovation in und durch die {\"o}ffentliche Verwaltung - theoretische {\"U}berlegungen und empirische Ergebnisse f{\"u}r {\"O}sterreich}, series = {Soziale Innovation im Kontext: Beitr{\"a}ge zur Konturierung eines unscharfen Konzepts}, booktitle = {Soziale Innovation im Kontext: Beitr{\"a}ge zur Konturierung eines unscharfen Konzepts}, editor = {Sch{\"u}ll, Elmar and Berner, Heiko and Kolbinger, Martin Lu and Pausch, Markus}, publisher = {Springer Fachmedien}, address = {Wiesbaden}, isbn = {978-3-658-37221-7}, doi = {10.1007/978-3-658-37221-7_9}, publisher = {Hochschule D{\"u}sseldorf}, pages = {205 -- 225}, year = {2022}, language = {de} } @inproceedings{DeckertKalefeldKutz2022, author = {Deckert, Carsten and Kalefeld, Jannik and Kutz, Martin}, title = {Business Model Innovation for the Internet of Things}, series = {Lecture Notes in Information Systems and Organisation: Digital Twins and New Business Models}, volume = {LNISO,volume 54}, booktitle = {Lecture Notes in Information Systems and Organisation: Digital Twins and New Business Models}, editor = {Kumar, Vikas and Leng, Jiewu and Akberdina, Victoria and Kuzmin, Evgeny}, publisher = {Springer Nature Switzerland}, address = {Cham}, isbn = {978-3-030-94617-3}, issn = {2195-4968}, doi = {10.1007/978-3-030-94617-3_23}, pages = {321 -- 333}, year = {2022}, language = {en} } @article{SenthurAnandRameshKumaretal.2022, author = {Senthur, N.S. and Anand, C and Ramesh Kumar, M and Elumalai, P.V. and Shajahan, Mohamed Iqbal and Benim, Ali Cemal and Nasr, Emad Abouel and Hussein, H.M.A. and Parthasarathy, M.}, title = {Influence of cobalt chromium nanoparticles in homogeneous charge compression ignition engine operated with citronella oil}, series = {Energy Science \& Engineering}, volume = {10}, journal = {Energy Science \& Engineering}, number = {4}, publisher = {Wiley}, issn = {2050-0505}, doi = {10.1002/ese3.1088}, pages = {1251 -- 1263}, year = {2022}, language = {en} } @masterthesis{Kuhlmann2022, type = {Bachelor Thesis}, author = {Kuhlmann, Andr{\´e}}, title = {Entwicklung einer Einsatzleitsoftware f{\"u}r beengte R{\"a}ume f{\"u}r eine kanadische Feuerwehrwache}, address = {D{\"u}sseldorf}, organization = {Hochschule D{\"u}sseldorf}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-37578}, school = {Hochschule D{\"u}sseldorf}, pages = {67}, year = {2022}, abstract = {This work focuses on designing an application ecosystem for a Canadian fire department. As it is part of the critical infrastructure, safety and code quality is of main concern. The thesis will go over the complete development life cycle, from planning to the actual implementation of a Computer-Aided Dispatch software for confined spaces. It is looked into the Canadian legislation to derive application flows and data structure from it. At the end, the reader will have a thorough understanding of confined spaces and how to come up with a working application infrastructure.}, language = {de} } @article{Braun2022, author = {Braun, Alexander}, title = {Automotive mass production of camera systems: Linking image quality to AI performance}, series = {tm - Technisches Messen}, journal = {tm - Technisches Messen}, publisher = {Walter de Gruyter}, issn = {2196-7113}, doi = {10.1515/teme-2022-0029}, year = {2022}, abstract = {Artificial intelligence methods based on machine learning or artificial neural networks have become indispensable in camera-based driver assistance systems, and also represent an essential building block for future autonomous driving. However, the great successes of these evaluation methods in environment perception and also driving planning are accompanied by equally great challenges in the validation and verification of these systems. One of the essential aspects for this is the required guaranteed safety of the functions under mass production conditions of the vehicles. This article explains this point of view using a detailed example from the field of camera-based driver assistance systems: the determination of inspection limits at the end of the production line. The camera is one of the most important sensor modalities for vehicle environment sensing and as such, the quality of the camera systems plays a key role in the safety argumentation of the overall system. Several illustrative application examples (role of simulations, calibration, influence of the windshield) will be presented. The basic ideas presented can be well transferred to the other sensor modalities (lidar, radar, ToF, etc.). The investigations/evidence show that doubts are allowed whether or how fast autonomous driving on level L4/5 will take hold as robotaxis or - even more challenging - in private ownership on a larger scale.}, language = {en} } @techreport{DeckertKeszlerSchmitzetal.2022, author = {Deckert, Carsten and Keszler, Julia and Schmitz, Helen and Mohya, Ahmed}, title = {Forecasting Game: Teaching Prospective Engineers Quantitative Forecasting Techniques with a Simulation Game}, address = {D{\"u}sseldorf}, organization = {Hochschule D{\"u}sseldorf}, issn = {2627-8375}, doi = {10.20385/opus4-3905}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-39057}, pages = {43}, year = {2022}, abstract = {In order to determine demand as precisely as possible, many businesses use several forecasting methods. The aim of forecasting is to determine future demand based on data from the past. The use of a specific method is not always easy and depends on a number of factors. To help prospective engineers find the most suitable forecasting method for a specific problem, a forecasting game was developed and then evaluated. The paper describes the design and the evaluation of the forecasting game. In order to provide an overview of existing forecasting methods, the first part of the paper examined the mathematical fundamentals of eight different forecasting methods and outlined the requirements for their application. The second part of the paper describes the creation of a forecasting game in which prospective engineers can learn how to determine the appropriate forecasting method for specific scenarios. In total, five scenarios covering the three different demand patterns (linear/stationary, trend and seasonal) as well as the forecast quality methods were developed and can be played through. For each scenario, the player has to choose the most appropriate forecasting method for a specific problem based on a self-created task description. To make the game as realistic as possible, a fictional company with a background story was designed. The last part was about the evaluation of the forecasting game. For the evaluation, a student survey to gather the opinions of the students was conducted. The results of the student survey show an overall positive evaluation of the simulation game by the students. However, the test also showed that the game takes a certain amount of time. Since only 15 of the approximately 30 students who tested the game participated in the evaluation, the results are not significant.}, language = {en} } @misc{Adam2022, author = {Adam, Mario}, title = {Windheizung 2.0 - Erfolgreiche Umsetzung der EU-Nachhaltigkeitsziele}, series = {hn21 Journal}, journal = {hn21 Journal}, publisher = {Zentrum f{\"u}r Forschungskommunikation}, address = {K{\"o}ln}, pages = {1 -- 1}, year = {2022}, language = {de} } @article{BiswasMandalMannaetal.2022, author = {Biswas, Nirmalendu and Mandal, Dipak Kumar and Manna, Nirmal K. and Benim, Ali Cemal}, title = {Magneto-hydrothermal triple-convection in a W-shaped porous cavity containing oxytactic bacteria}, series = {scientific reports}, volume = {12}, journal = {scientific reports}, publisher = {Springer Nature}, issn = {2045-2322}, doi = {10.1038/s41598-022-18401-7}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-40041}, year = {2022}, abstract = {Bioconvective heat and mass transport phenomena have recently been the subject of interest in diverse fields of applications pertaining to the motion of fluids and their thermophysical properties. The transport processes in a system involving triple convective phenomena, irregular geometry, and boundary conditions constitute a complex phenomenon. This work aims to explore the mixed thermo-bioconvection of magnetically susceptible fluid containing copper nanoparticles and oxytactic bacteria in a novel W-shaped porous cavity. The buoyant convention is generated due to the isothermal heating at the wavy bottom wall, whereas the mixed convection is induced due to the shearing motion of the top-cooled sliding wall. Furthermore, the bioconvection is induced due to the manifestation of oxytactic bacteria or organisms. The inclined sidewalls are insulated. The geometry is packed with water based Cu nanoparticle mixed porous structure, which is subjected to a magnetizing field acted horizontally. The complex transport equations are transformed into nondimensional forms, which are then computed using the finite volume-based developed code. The coupled triple-convective flow physics are explored for a wide range of involved controlling parameters, which could provide helpful insight to the system designer for its proper operation. The shape of geometry can be considered one of the important parameters to control the heat and mass transport phenomena. In general, the influence of amplitude (δ) is more compared to the waviness number (m) of the undulations. The magnitude of heat (Nu) and mass (Sh) transfer rate for the W-shaped cavity is high compared to conventional square and trapezoidal-shaped cavities. The output of the analysis could be very helpful for the designer for modeling devices operating on nanotechnology-based bioconvection, microbial fuel cells, and others.}, language = {en} } @article{WohlersMuellerBraun2022, author = {Wohlers, Luis Constantin and M{\"u}ller, Patrick and Braun, Alexander}, title = {Original image noise reconstruction for spatially-varying filtered driving scenes}, series = {Electronic Imaging: Society for Imaging Science and Technology}, volume = {34}, journal = {Electronic Imaging: Society for Imaging Science and Technology}, number = {16}, publisher = {Society for Imaging Science and Technology}, issn = {2470-1173}, doi = {10.2352/EI.2022.34.16.AVM-214}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-41479}, pages = {1 -- 7}, year = {2022}, language = {en} } @inproceedings{MuellerBraunKeuper2022, author = {M{\"u}ller, Patrick and Braun, Alexander and Keuper, Margret}, title = {Impact of realistic properties of the point spread function on classification tasks to reveal a possible distribution shift}, series = {NeurIPS 2022: Workshop on Distribution Shifts: Connecting Methods and Applications, December 3rd, 2022, New Orleans, USA}, booktitle = {NeurIPS 2022: Workshop on Distribution Shifts: Connecting Methods and Applications, December 3rd, 2022, New Orleans, USA}, publisher = {NeurIPS}, address = {New Orleans}, year = {2022}, language = {en} } @inproceedings{MuellerBraun2022, author = {M{\"u}ller, Patrick and Braun, Alexander}, title = {Simulating optical properties to access novel metrological parameter ranges and the impact of different model approximations}, series = {2022 IEEE International Workshop on Metrology for Automotive (MetroAutomotive), 4-6 July 2022}, booktitle = {2022 IEEE International Workshop on Metrology for Automotive (MetroAutomotive), 4-6 July 2022}, publisher = {IEEE}, isbn = {978-1-6654-6689-9}, doi = {10.1109/MetroAutomotive54295.2022.9855079}, pages = {133 -- 138}, year = {2022}, language = {en} } @article{BrummelMuellerBraun2022, author = {Brummel, Mattis and M{\"u}ller, Patrick and Braun, Alexander}, title = {Spatial precision and recall indices to assess the performance of instance segmentation algorithms}, series = {Electronic Imaging}, volume = {34}, journal = {Electronic Imaging}, number = {16}, publisher = {Society for Imaging Science and Technology}, issn = {2470-1173}, doi = {10.2352/EI.2022.34.16.AVM-101}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-41552}, pages = {1 -- 6}, year = {2022}, language = {en} } @article{SidharthRajkumarChithrakumaretal.2022, author = {Sidharth, K. Pillai and Rajkumar, Mattacaud R. and Chithrakumar, V. K. and Asirvatham, Godson L. and Benim, Ali Cemal and Wogwises, Somchai}, title = {Impact of increased outer wall rotation on convection in a vertical annulus with a stationary heated inner cylinder}, series = {Heat Transfer}, volume = {51}, journal = {Heat Transfer}, number = {7}, publisher = {Wiley}, issn = {2688-4534}, doi = {10.1002/htj.22617}, pages = {6656 -- 6684}, year = {2022}, abstract = {The interplay of centrifugal and buoyant forces on convective heat transfer in a vertical annulus formed by rotating adiabatic outer cylinder and stationary heated inner cylinder has been experimentally and numerically investigated. Experiments were performed for rotational speeds corresponding to the rotation parameter ζ in the range of 527 ≤ ζ ≤ 2860, maintaining the heat flux of the heated stationary inner cylinder as 80 W/m2, for radius ratio (η) and aspect ratio of the vertical annulus being 0.614 and 0.052, respectively. The problem was investigated numerically using the commercial computational fluid dynamics package, ANSYS CFX. The numerical methodology has been validated by comparing the numerically predicted average surface Nusselt number with experimentally obtained values. The comparison revealed an enhancement of the thermal performance of the heated stationary inner cylinder in the range 527 ≤ ζ ≤ 1190 due to the increase in turbulence intensity towards the heated inner cylinder. However, when the rotation parameter was increased further in the range 1190 ≤ ζ ≤ 2860, the thermal performance of the stationary heated inner cylinder showed only marginal improvement. The aforementioned thermal behavior of the inner heated stationary cylinder has been explored based on the flow statistics gathered from the numerical simulations.}, subject = {Numerische Str{\"o}mungssimulation}, language = {en} } @inproceedings{RituperGottkehaskamp2022, author = {Rituper, Jannik and Gottkehaskamp, Raimund}, title = {Consideration of the Saturation in a Transient Model of Line-Start Synchronous Reluctance Machines}, series = {2022 International Conference on Electrical Machines (ICEM)}, booktitle = {2022 International Conference on Electrical Machines (ICEM)}, publisher = {IEEE}, doi = {10.1109/ICEM51905.2022.9910731}, pages = {62 -- 68}, year = {2022}, subject = {Reluktanzmaschine}, language = {en} } @inproceedings{OezmanGuelDiederichetal.2022, author = {{\"O}zman, Cansu and G{\"u}l, Fethi and Diederich, Michael and Benim, Ali Cemal and Janoske, Uwe}, title = {Computational and Experimental Investigation of Flow and Convective Heat Transfer along Rough Surfaces}, series = {Proceedings of CONV-22: Int. Symp. on Convective Heat and Mass Transfer June 5 - 10, 2022, Turkey}, booktitle = {Proceedings of CONV-22: Int. Symp. on Convective Heat and Mass Transfer June 5 - 10, 2022, Turkey}, publisher = {Begellhouse}, doi = {10.1615/ICHMT.2022.CONV22.590}, pages = {447 -- 454}, year = {2022}, subject = {Numerische Str{\"o}mungssimulation}, language = {en} } @inproceedings{BiedermannMoutamassikKameier2022, author = {Biedermann, Till M. and Moutamassik, Youssef and Kameier, Frank}, title = {Assessment of the Impeller/Volute Relationship of Centrifugal Fans From an Aerodynamic and Aeroacoustic Perspective}, series = {ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition}, volume = {Volume 5: Education; Electric Power; Fans and Blowers}, booktitle = {ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition}, publisher = {American Society of Mechanical Engineers}, doi = {10.1115/GT2022-79389}, year = {2022}, abstract = {Heavy-duty centrifugal fans require high reliability and first-class performance. Besides, extreme conditions and harsh environments are often encountered, such as in the papermaking process, in steel or cement plants or the chemical and petrochemical industry. Therefore, the design of high performance heavy-duty industrial fans requires robust yet efficient solutions. Previous work indicates a high aerodynamic and aeroacoustic sensitivity concerning the specific position of the volute cut-off (tongue). This effect will be further investigated, not by directly changing the orientation of the cutoff, but by varying the position of the impeller relative to a fixed volute casing. The initial evaluation is done through a numerical study of three influencing parameters, which allows the aerodynamic dependencies to be modelled using low-layer artificial networks. Subsequently, extensive experimental studies were carried out to validate the aerodynamic dependencies and also to incorporate information on the aeroacoustic performance. The obtained results show that the operating point represents the key factor in determining the optimal positioning, with qualitatively comparable dependencies found for both tested fans. From an aeroacoustic point of view, the determined optimal configuration does not necessarily coincide with the observed aerodynamic desires, so careful analysis and a reasonable compromise are required, motivating for a multi-objective optimisation process.}, subject = {Ventilator}, language = {en} } @article{MabroukNajiBenimetal.2022, author = {Mabrouk, Riheb and Naji, Hassane and Benim, Ali Cemal and Dhahri, Hacen}, title = {A State of the Art Review on Sensible and Latent Heat Thermal Energy Storage Processes in Porous Media: Mesoscopic Simulation}, series = {Applied Sciences}, volume = {12}, journal = {Applied Sciences}, number = {14}, publisher = {MDPI}, doi = {10.3390/app12146995}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-40343}, year = {2022}, language = {en} }