@article{ShajahanBenim2026, author = {Shajahan, Mohamed Iqbal and Benim, Ali Cemal}, title = {Granular PCM based heat sink for electronics thermal management}, series = {Applied Thermal Engineering}, volume = {286}, journal = {Applied Thermal Engineering}, publisher = {Elsevier}, issn = {1359-4311}, doi = {10.1016/j.applthermaleng.2025.129336}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-59649}, year = {2026}, abstract = {This study investigates aluminum heat sinks integrated with GR42 phase change material (PCM), aiming to enhance thermal inertia and stabilize device temperatures. This is important, since the increasing miniaturization and performance demands for electronic devices have led in a growing need for advanced thermal management systems capable of handling rapid transient loads. The novelty of the work lies in examining different heat sink layouts that optimize the heat dissipation capabilities of GR42 PCMs while minimizing size and weight for electronic cooling. The experimental testing was conducted using three configurations, namely no fin, circular fin and hexagonal fin, with three input powers (4 W, 8 W, and 12 W). The experimental results show that the hexagonal-fin heat sink, surface area is 25 \% more than circular fins, exhibited superior thermal performance without significant variation in input power. Notably, the hexagonal-fin heat sink achieved the desired set point temperature of 55 ◦C in 33 \% less time than the circular-fin design and 45 \% less time than the heat sink without fins. Furthermore, the peak temperatures increased up to 21 \% for circular fins. During the charging cycles, the enhancement ratios vary from 72 \% and begin to narrow to 25 \% during discharge cycles. The hexagonal-fin configuration also exhibited superior melting dynamics, completing the phase transition 44 \% faster at higher input power than the circular fins, and established a thermal deviation of nearly 51 \% less than finless heat sinks. These findings underscore the critical role of fin geometry and PCM integration in achieving uniform temperature distribution and improved energy storage efficiency. Overall, the hexagonal-fin heat sink with GR42 PCM shows strong potential as a passive cooling solution for low-power portable electronic devices.}, language = {en} } @article{SulaimanSaberHasanetal.2026, author = {Sulaiman, Mohammed A. and Saber, Hindren Ali and Hasan, Hasan F. and Benim, Ali Cemal}, title = {Latent heat cold storage integrated direct evaporative cooler: A neoteric practical design for energy and water saving potential with thermal comfort improvement}, series = {Journal of Energy Storage}, volume = {143}, journal = {Journal of Energy Storage}, publisher = {Elsevier}, issn = {2352-152X}, doi = {10.1016/j.est.2025.119612}, pages = {20}, year = {2026}, subject = {Latentw{\"a}rmespeicher}, language = {en} } @article{MandalMannaBiswasetal.2026, author = {Mandal, Dipak Kumar and Manna, Nirmal K. and Biswas, Nirmalendu and Rudra, Tansu and Kumar, Rajesh and Benim, Ali Cemal}, title = {Enhanced heat transport in magneto-nanofluidic thermal systems: adiabatic block effects in grooved channels and ANN modeling}, series = {International Journal of Thermofluids}, volume = {31}, journal = {International Journal of Thermofluids}, publisher = {Elsevier}, issn = {2666-2027}, doi = {10.1016/j.ijft.2025.101515}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-60127}, year = {2026}, abstract = {This study investigates heat transfer enhancement in magneto-nanofluidic systems through the strategic placement of adiabatic blocks in grooved channels. Using CuO-H2O nanofluid in a bottom-heated channel with circular expansion, we examine the complex interactions between forced convection, magnetic fields, and uoyancy effects. Through systematic numerical analysis, we explore the combined influences of Rayleigh, Reynolds, and Hartmann numbers on thermal performance. Our findings reveal significant heat transfer enhancement (up to 137 \%) under optimal conditions, particularly with vertical magnetic field orientation at Re = 100 and Ha = 30. The results demonstrate how adiabatic blocks modify flow structures, with larger blocks diminishing vortex intensity while elevated Ra generates secondary vortices that interact with primary circulations. Magnetic field effects show notable dependence on orientation, with vertical fields generally promoting better heat transfer than horizontal configurations. To complement the numerical analysis, we develop a predictive model using Artificial Neural Network (ANN) for Nusselt numbers across various operating conditions, achieving over 99 \% accuracy. The integrated computational-ANN approach offers significant advancements in optimizing thermal systems in various areas, ranging from electronics cooling to microfluidic devices.}, language = {en} } @article{BergmannHaddadThoelkeJeongetal.2026, author = {Bergmann, Marie and Haddad-Thoelke, Pascale and Jeong, Haeran and Kappeler, Ron and Altug, Hicran and Oberwinster, Lukas and Boogaard, Hanna and Pohl, Tobias and Soppa, Vanessa and Ogurtsova, Katherine and Joss, Meltem Kutlar and Andersen, Zorana Jovanovic and Hoffmann, Barbara}, title = {Systematic review and meta-analysis on the health effects of long-term exposure to ultrafine particles}, series = {European Respiratory Review}, volume = {35}, journal = {European Respiratory Review}, number = {179}, publisher = {European Respiratory Society}, issn = {1600-0617}, doi = {10.1183/16000617.0156-2025}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-60272}, pages = {39}, year = {2026}, abstract = {Background Ultrafine particles (≤100 nm diameter) may have a higher toxicity than larger particles but are still not regulated nor part of routine air pollution monitoring. So far, health effects of long-term exposure to ambient ultrafine particles are not well understood, owing to a lack of exposure data and epidemiological studies. Methods We conducted a systematic review and meta-analysis on the health effects of long-term exposure to ultrafine particles, including studies published until December 2024. A meta-analysis was conducted for outcomes with at least four available effect estimates. Confidence in the body of evidence was evaluated using the Office of Health Assessment and Translation method. Results We identified 85 studies investigating various mortality, morbidity and subclinical outcomes. In meta-analyses of single-pollutant models, we found positive associations with natural mortality (hazard ratio 1.06, 95\% CI 1.04-1.08) and C-reactive protein (10.14\% increase (95\% CI -0.51-21.99\%) per 10 000 pt·cm-3 increase in long-term exposure to ultrafine particles, with low and inadequate levels of evidence, respectively. The remaining studies revealed overall limited evidence for adverse effects on a wide range of outcomes. Less than half of the studies adjusted for co-pollutants. Conclusion The evidence base on long-term health effects of ultrafine particles has increased substantially in the past decade, while the overall evidence for independent effects of long-term ultrafine particle exposure remains inadequate to low. More studies are needed to draw firm conclusions about the independent adverse effects of long-term ultrafine particles on various health end-points, with a special focus on the influence of co-pollutant adjustment.}, subject = {Schadstoffbelastung}, language = {en} } @misc{OPUS4-6085, title = {1045 - Vierte Satzung zur {\"A}nderung der Pr{\"u}fungsordnung f{\"u}r den Masterstudiengang „Umweltingenieurwesen" an der Hochschule D{\"u}sseldorf vom 18.02.2026}, address = {D{\"u}sseldorf}, organization = {Hochschule D{\"u}sseldorf}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-60857}, pages = {2}, year = {2026}, abstract = {Aufgrund der \S\S 2 Abs. 4, 64 Abs. 1 des Gesetzes {\"u}ber die Hochschulen des Landes Nordrhein-Westfalen (Hochschulgesetz - HG) vom 16.09.2014 (GV. NRW. S. 547) in der aktuell g{\"u}ltigen Fassung hat die Hochschule D{\"u}sseldorf die folgende Ordnung als Satzung erlassen.}, language = {de} } @misc{OPUS4-6084, title = {1044 - Erste Satzung zur {\"A}nderung der Pr{\"u}fungsordnung f{\"u}r den Bachelorstudiengang Haus-, Energie- und Anlagentechnik (HEAT) an der Hochschule D{\"u}sseldorf vom 18.02.2026}, address = {D{\"u}sseldorf}, organization = {Hochschule D{\"u}sseldorf}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-60846}, pages = {2}, year = {2026}, abstract = {Aufgrund der \S\S 2 Abs. 4, 64 Abs. 1 des Gesetzes {\"u}ber die Hochschulen des Landes Nordrhein-Westfalen (Hochschulgesetz - HG) vom 16.09.2014 (GV. NRW. S. 547) in der aktuell g{\"u}ltigen Fassung hat die Hochschule D{\"u}sseldorf die folgende Ordnung als Satzung erlassen.}, language = {de} } @unpublished{DeckertSchomakerGrasmik2026, author = {Deckert, Carsten and Schomaker, Rahel M. and Grasmik, Jeanna}, title = {Universalism and Innovation: The Influence of Impartiality and Inclusiveness on National Innovativeness}, series = {Queios}, journal = {Queios}, publisher = {Qeios Ltd}, doi = {10.32388/KNI4FN}, year = {2026}, abstract = {The innovative capacity of a country is a key factor in its economic development. While classical approaches primarily emphasize technological and economic aspects, cultural and moral influences are increasingly coming into focus in research. In particular, the treatment of out-groups and the intensity of in-group preferences play a crucial role, as expressed in the societal contrast between social cohesion and individual freedom. A central aspect of this debate is the moral dimension, particularly the tension between universalism, relativism, and particularism. This study examines the impact of universalism on a country's innovativeness by situating the concept within cultural theory and analyzing it empirically. The findings provide new insights into the relationship between cultural values and innovation potential with regard to moral capital in a society.}, language = {en} } @article{SShajahanRetal.2026, author = {S, Kasiviswanathan and Shajahan, Mohamed Iqbal and R, Bharathiraja and Murali, Arun Prasad and Benim, Ali Cemal}, title = {Comprehensive overview of phase change materials in electronics, building, and solar applications}, series = {Engineering Research Express}, volume = {8}, journal = {Engineering Research Express}, number = {3}, publisher = {IOP Publishing}, issn = {2631-8695}, doi = {10.1088/2631-8695/ae342a}, year = {2026}, abstract = {Phase change materials (PCMs) are a viable way to improve energy efficiency and thermal control in a variety of sectors. With an emphasis on their function in thermal control, this review article offers an in-depth review of PCM applications in electronics, buildings and solar energy systems. PCMs are used in electronics to control device temperatures, which lowers the risk of overheating and increases operational efficiency by 10\% to 25\%. Through latent heat storage and release in reaction to temperature changes, PCMs are incorporated into walls, floors, and roofs in building applications to improve thermal comfort and cut energy use by 15\% to 30\%. By storing thermal energy for steady power generation, PCMs increase the dependability and efficiency of solar energy systems by 8\%-20\%. This review examines the basic ideas behind PCMs, assesses various PCM (such as organic, inorganic, and eutectic PCMs), and details about real-world applications in these energy management fields. Important issues are examined, such as material compatibility, cost-effectiveness, and long-term stability. In order to maximize performance in these crucial applications, the conclusion emphasizes the need for improvements in cost-effective PCM formulations for the improved thermal conductivity (0.2-0.7 W m-1·K-1), and adaptive control systems.}, subject = {Energieeffizienz}, language = {en} } @phdthesis{Muench2026, author = {M{\"u}nch, Justin}, title = {Mehrwert von Methoden des Maschinellen Lernens f{\"u}r die simulative Bewertung der Versorgungssicherheit mit Elektrizit{\"a}t}, publisher = {Hochschule D{\"u}sseldorf}, address = {D{\"u}sseldorf}, doi = {10.20385/opus4-5830}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-58306}, school = {Hochschule D{\"u}sseldorf}, pages = {126}, year = {2026}, abstract = {Politik und Wirtschaft sind auf eine fundierte, schnelle und flexible Bewertung der Ver-sorgungssicherheit mit Elektrizit{\"a}t als Grundlage strategischer Entscheidungen angewiesen. Dazu werden komplexe probabilistische Simulationsmodelle unter Einbeziehung einer hohen Anzahl m{\"o}glicher Zukunftsszenarien verwendet. Allerdings schr{\"a}nken die langen Rechenlaufzeiten von mehreren Stunden pro Szenario die Analysetiefe ein. Zudem werden die Analysen durch die Prognose der zeitlich aufgel{\"o}sten zuk{\"u}nftigen Randbedingungen erschwert. Die vorliegende Arbeit zeigt, dass sich mit Methoden aus dem Bereich des Maschinellen Lernens (ML) in Kombination mit angepassten Methoden des Design of Experiments die Kennzahlen der Versorgungssicherheit mit Elektrizit{\"a}t aus einem komplexen Simulationsmodell auf Basis rekursiver Faltungen sehr gut approximieren lassen. Die Zeitreduktion im Vergleich zum nativen Simulationsmodell ist sehr hoch, bei gleichzeitig hoher Genauigkeit. Auch im Bereich der Prognose zeitlich aufgel{\"o}ster Randbedingungen demonstrieren die Ergebnisse ein erhebliches Verbesserungspotenzial von ML-Methoden im Vergleich zu klassischen Verfahren. Zusammengefasst sind die untersuchten und vorgeschlagenen ML-Methoden in der Lage, die Versorgungssicherheit mit Elektrizit{\"a}t komplexit{\"a}tsgerecht (tausende von Zukunftsszenarien) in praktikabel kurzer Zeit (weniger als eine Stunde) detailliert zu analysieren.}, subject = {Deep Learning}, language = {de} } @article{CicekKocyiğit2025, author = {{\c{C}}i{\c{c}}ek, Ayd{\i}n and Ko{\c{c}}yiğit, Ali}, title = {Episodic evolution and active tectonics of the Karam{\i}k Graben in the apex of Isparta Angle, SW T{\"u}rkiye}, series = {Mediterranean Geoscience Reviews}, journal = {Mediterranean Geoscience Reviews}, publisher = {Springer Nature}, issn = {2661-863X}, doi = {10.1007/s42990-024-00151-5}, year = {2025}, subject = {Neotektonik}, language = {en} } @techreport{DeckertKellerKoenigetal.2025, author = {Deckert, Carsten and Keller, Laurenz and K{\"o}nig, Steffen and Lux, Tim and M{\"o}hle, Norbert}, title = {Der Kreativit{\"a}t Raum geben: Konzeptionierung und Umsetzung eines hybriden Innovation Space}, publisher = {Hochschule D{\"u}sseldorf}, address = {D{\"u}sseldorf}, issn = {2627-8375}, doi = {10.20385/opus4-5013}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-50134}, year = {2025}, language = {de} } @article{DeckertSchomakerAydogan2025, author = {Deckert, Carsten and Schomaker, Rahel M. and Aydogan, Manolya}, title = {Leistung, Ansehen und Muße: Der Einfluss der Leistungsorientierung auf die nationale Innovationf{\"a}higkeit}, series = {Ideen- und Innovationsmanagement}, journal = {Ideen- und Innovationsmanagement}, number = {1}, publisher = {Erich Schmidt Verlag}, issn = {2198-3143}, doi = {10.37307/j.2198-3151.2025.01.03}, year = {2025}, abstract = {Die Leistungsf{\"a}higkeit einer Gesellschaft spielt eine entscheidende Rolle f{\"u}r ihre Wachstumsm{\"o}glichkeiten. Zentrale Figur ist dabei der Entrepreneur, welcher durch seine Eigenschaften in Bezug auf Risikobereitschaft, Verantwortungs{\"u}bernahme oder Ergebnisorientierung innovativ t{\"a}tig ist und somit das Wirtschaftswachstum vorantreibt. Der vorliegende Beitrag untersucht, wie Leistungsorientierung und Innovationsf{\"a}higkeit auf nationaler Ebene miteinander verbunden sind. Zun{\"a}chst wird Leistungsorientierung im Kontext der Kulturforschung eingeordnet. Anschließend wird deraktuelle Stand der Forschung zum Zusammenhang zwischen Leistungsorientierung und Innovationskraft reflektiert. Im weiteren Verlauf erfolgt die Diskussion eigener empirischer Ergebnisse mit Fokus auf die Kulturdimension „Achievement versus Ascription" (Leistung contra Ansehen), bevor ein Fazit {\"u}ber den Einfluss von Leistung im Hinblick auf Ansehen und Muße gezogen wird.}, language = {de} } @article{DeckertAbuTairRemmleretal.2025, author = {Deckert, Carsten and Abu-Tair, Meera and Remmler, Julian and Maxisch, Stefan}, title = {Messung der Ingenieurkreativit{\"a}t}, series = {Ideen- und Innovationsmanagement}, journal = {Ideen- und Innovationsmanagement}, number = {4}, publisher = {Erich Schmidt Verlag}, issn = {2198-3151}, doi = {10.37307/j.2198-3151.2024.04.03}, year = {2025}, language = {de} } @incollection{DeckertSchomaker2025, author = {Deckert, Carsten and Schomaker, Rahel M.}, title = {Soziale Innovation als Treiber f{\"u}r eine menschenw{\"u}rdige Gesellschaft}, series = {Globale Ziele f{\"u}r nachhaltige Entwicklung}, booktitle = {Globale Ziele f{\"u}r nachhaltige Entwicklung}, publisher = {Springer Nature}, address = {Berlin, Heidelberg}, isbn = {9783662683279}, issn = {2731-9849}, doi = {10.1007/978-3-662-68327-9_5-1}, pages = {1 -- 14}, year = {2025}, language = {de} } @misc{OPUS4-5411, title = {1010 - Pr{\"u}fungsordnung f{\"u}r den Bachelorstudiengang Haus-, Energie- und Anlagentechnik (HEAT) an der Hochschule D{\"u}sseldorf vom 12.06.2025}, address = {D{\"u}sseldorf}, organization = {Hochschule D{\"u}sseldorf}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-54118}, pages = {5}, year = {2025}, abstract = {Aufgrund der \S\S 2 Abs. 4, 64 Abs. 1 des Gesetzes {\"u}ber die Hochschulen des Landes Nordrhein-Westfalen (Hochschulgesetz - HG) vom 16.09.2014 (GV. NRW. S. 547) in der aktuell g{\"u}ltigen Fassung hat die Hochschule D{\"u}sseldorf die folgende studiengangspezifische Pr{\"u}fungsordnung als Satzung erlassen. Diese Pr{\"u}fungsordnung gilt nur in Verbindung mit der Rahmenpr{\"u}fungsordnung des Fachbereichs Maschinenbau und Verfahrenstechnik der Hochschule D{\"u}sseldorf (RahmenPO) vom 15.02.2016 in der jeweils g{\"u}ltigen Fassung.}, language = {de} } @misc{OPUS4-5410, title = {1009 - F{\"u}nfte Satzung zur {\"A}nderung der Rahmenpr{\"u}fungsordnung f{\"u}r den Fachbereich Maschinenbau und Verfahrenstechnik an der Hochschule D{\"u}sseldorf vom 12.06.2025}, address = {D{\"u}sseldorf}, organization = {Hochschule D{\"u}sseldorf}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-54102}, pages = {2}, year = {2025}, abstract = {Aufgrund der \S\S 2 Abs. 4, 64 Abs. 1 des Gesetzes {\"u}ber die Hochschulen des Landes Nordrhein-Westfalen (Hochschulgesetz - HG) vom 6.09.2014 (GV. NRW. S. 547) in der aktuell g{\"u}ltigen Fassung hat die Hochschule D{\"u}sseldorf die folgende Ordnung als Satzung erlassen.}, language = {de} } @unpublished{DeckertSchomakerAlbiez2025, author = {Deckert, Carsten and Schomaker, Rahel and Albiez, Philipp}, title = {Social Capital and National Innovativeness - The Influence of Trust and Tolerance on the National Capacity to Innovate}, series = {Qeios}, journal = {Qeios}, publisher = {Qeios}, issn = {2632-3834}, doi = {10.32388/646CQI}, year = {2025}, abstract = {While national innovativeness is of pivotal relevance for economic development, so far, relatively little attention has been paid to the social drivers of innovativeness. Thus, the role of social norms and values as drivers of innovativeness is somewhat blurry. Tackling this gap, the article at hand reflects the concepts of social capital, trust, and tolerance, before a model of social capital and innovativeness is developed and tested empirically, followed by the presentation and discussion of the results and a brief conclusion.}, subject = {Innovationsf{\"a}higkeit}, language = {en} } @inproceedings{LippelBihlmeierStuhlsatz2025, author = {Lippel, Jens and Bihlmeier, Richard and Stuhlsatz, Andr{\´e}}, title = {A Computer Vision Approach to Fertilizer Detection and Classification}, series = {Proceedings of the 20th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications}, booktitle = {Proceedings of the 20th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications}, publisher = {SCITEPRESS - Science and Technology Publications}, doi = {10.5220/0013189300003912}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-54735}, pages = {563 -- 569}, year = {2025}, subject = {Maschinelles Lernen}, language = {en} } @article{SulaimanSaberHasanetal.2025, author = {Sulaiman, Mohammed A. and Saber, Hindren Ali and Hasan, Hasan F. and Benim, Ali Cemal}, title = {Experimental and numerical investigation of novel dew-point evaporative cooler with shell and tube design}, series = {Energy}, volume = {317}, journal = {Energy}, publisher = {Elsevier}, issn = {0360-5442}, doi = {10.1016/j.energy.2025.134686}, year = {2025}, subject = {Numerische Str{\"o}mungssimulation}, language = {en} } @article{VishwakarmaBhattacharyyaSonietal.2025, author = {Vishwakarma, Devendra Kumar and Bhattacharyya, Suvanjan and Soni, Manoj Kumar and Benim, Ali Cemal}, title = {Transitional Mixed Convection in Inclined Solar Air Heater Tube with Wavy Inserts}, series = {Heat Transfer Engineering}, journal = {Heat Transfer Engineering}, publisher = {Informa}, issn = {0145-7632}, doi = {10.1080/01457632.2025.2480906}, pages = {15}, year = {2025}, subject = {Numerische Str{\"o}mungssimulation}, language = {en} }