TY - CHAP A1 - Prusas, Benedik T1 - Simulation of Germany’s security of supply: long-term forecasting of electric load profiles using machine learning. T2 - ENERDAY 2022 - 16th international conference of energy economics and technology, 30.9.2022, Dresden KW - KiVi KW - Vortrag Y1 - 2022 PB - Technische Universität Dresden CY - Dresden ER - TY - RPRT A1 - Deckert, Carsten T1 - Good Vibrations from Electronic Circuits: The Technological Development of the Synthesizer T3 - Business Cases in Industrial Engineering - 4 Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-44394 SN - 2941-4075 ER - TY - CHAP A1 - Çelik, Fatma A1 - Karabaş, Beyza ED - Stelzmann, Daniela ED - Ischebeck, Josephine T1 - You don’t talk about that!? – A survey on prospective social worker’s knowledge on CSA and their use of media T2 - Child Sexual Abuse and the Media N2 - Well-trained professionals, like social workers, are essential for effective prevention of child sexual abuse (CSA). The present study assesses knowledge and knowledge acquisition regarding CSA in social work undergraduate students in a cross-sectional design. Three options for acquisition were assumed: 1) professional education, 2) media consumption, or 3) own experiences of CSA. Results indicated no improvement of knowledge through any of the prior mentioned sources and a high variability in knowledge. In contrast to expectations, personal experiences of CSA were associated with a higher threshold in recognition of CSA incidents. The meaning of the results for prevention and intervention are discussed by highlighting the role of taboos in professional education and the effects of media coverage. KW - CSA KW - social work KW - education KW - prevention KW - knowledge Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-44412 SN - 978-3-7489-0440-3 SP - 123 EP - 134 PB - Nomos Verlagsgesellschaft CY - Baden-Baden ER - TY - THES A1 - Thielen, Sven T1 - Investigating JackTrip's Software Architecture: A Case Study On Prominent Reasons For Architectural Erosion In Open Source Software Originating From Academia N2 - Sustainable software architecture is crucial for the success of an evolving system that is affected by its context and environment. However, deviations between software design and implementation are often uncontrolled and induce architectural erosion. The literature describes several symptoms and observes this phenomenon in open source software. Prominent reasons for the occurrence of architectural erosion include a rushed evolution, recurring changes, a lack of developers' awareness, time pressures, and the accumulation of design decisions. Architectural erosion is also prevalent in academic projects, but it still needs to be researched in-depth in a real-life setting. In this work, a single case study investigates the symptoms and reasons for architectural erosion in open source software originating from academia by employing a mixed-methods approach. Architectural metrics from a static code analysis using ARCADE Core are contrasted with developers' perspectives sourced from semistructured interviews. The investigated project is JackTrip, a cross-platform application for realtime networked music performances and Internet reverberation research. The first research question aims at assessing the trend of structural symptoms for architectural erosion in JackTrip. The results show a significant increase in link overload smells in the course of the evolution, which reached 11 as of version 1.6.2. This supports the developers' perception of a rushed evolution corresponding to the second research question, which asks to what extent prominent causes for architectural erosion apply. Additionally, the interview data evince time constraints related to tight research funding and the commercialization of the project. Research question 3 investigates how the academic environment and the problem domain relate to the symptoms and reasons for architecture erosion. It has been found that these influences shape the development approach and impact contributor selection. In relation to a certain inexperience and lack of commitment of open source developers as a reason for architectural erosion, the results suggest further studies and opt for ending the discussion regarding skills. Currently, the role of an architect or dedicated architectural work does not seem to be present in the JackTrip project. However, structural issues described in this work should not be considered as categorical statements about its software architecture as they would need to be confirmed on a code level. KW - Software Architecture KW - Architecture Erosion KW - Software Evolution KW - Academic Software KW - Open Source Software Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-44153 PB - Hochschule Düsseldorf CY - Düsseldorf ER - TY - JOUR A1 - Benim, Ali Cemal T1 - Investigation into the Computational Analysis of High–Speed Microjet Hydrogen–Air Diffusion Flames JF - Fire N2 - High-speed microjet hydrogen–air diffusion flames are investigated computationally. The focus is on the prediction of the so-called bottleneck phenomenon. The latter has been previously observed as a specific feature of the present flame class and has not yet been investigated computationally. In the configuration under consideration, the nozzle diameter is 0.5 mm and six cases with mean nozzle injection velocities (U) between 306 m/s and 561 m/s are considered. The flow in the nozzle lance is analyzed separately to obtain detailed inlet boundary conditions for the flame calculations. It is confirmed by calculation that the phenomenon is mainly determined by the transition to turbulence in the initial parts of the free jet. The transitional turbulence proves to be the biggest challenge in predicting this class of flames, as the generally available turbulence and turbulent combustion models reach the limits of their validity in transitional flows. In a Reynolds-Averaged Numerical Simulation framework, the Shear Stress Transport model is found to perform better than alternative two-equation models and is used as the turbulence model. By neglecting the interactions between the turbulence and chemistry (no-model approach), it is possible to predict the morphology of the bottleneck flame and its dependence on U qualitatively. However, the position of the bottleneck is overpredicted for U < 561 m/s. The experimental flames in the considered U range are all attached to the nozzle. This is also predicted by the no-model approach. The Eddy Dissipation Concept (EDC) used as the turbulence combustion model predicts, however, lifted flames (with increasing lift-off height as U decreases). With the EDC, no bottleneck morphology is observed for U = 561 m/s. For lower U, the EDC results for the bottleneck position are generally closer to the measurements. It is demonstrated that accuracy in predicting the bottleneck position can be improved by ad hoc modifications of the turbulent viscosity. KW - Turbulenzmodell KW - Diffusionsflamme KW - hydrogen combustion KW - bottleneck flame KW - diffusion flame KW - microjet flame KW - transitional turbulence KW - turbulence modelling KW - combustion modelling Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46345 SN - 2571-6255 VL - 7 IS - 9 PB - MDPI ER - TY - JOUR A1 - Başaran, Anıl A1 - Benim, Ali Cemal T1 - Condensation Flow of Refrigerants Inside Mini and Microchannels: A Review JF - Applied Sciences N2 - Nowadays, the demand for obtaining high heat flux values in small volumes has increased with the development of technology. Condensing flow inside mini- and microchannels has been becoming a promising solution for refrigeration, HVAC, air-conditioning, heat pumps, heat pipes, and electronic cooling applications. In these applications, employing mini/microchannels in the condenser design results in the working fluid, generally refrigerant, undergoing a phase change inside the mini/microchannels. On the other hand, the reduction in the hydraulic diameter during condensation gives rise to different flow regimes and heat transfer mechanisms in the mini- and microchannels compared to the conventional channels. Therefore, the understanding of fluid flow and heat transfer characteristics during condensation of refrigerant inside mini- and microchannels has been gaining importance in terms of condenser design. This study presents a state-of-the-art review of condensation studies on refrigerants inside mini- and microchannels. The review includes experimental studies as well as correlation models, which are developed to predict condensation heat transfer coefficients and pressure drop. The refrigerant type, thermodynamical performance, and compatibility, as well as the environmental effects of refrigerant, play a decisive role in the design of refrigeration systems. Therefore, the environmental impacts of refrigerants and current regulations against them are also discussed in the present review. KW - Kondensation KW - Druckabfall KW - Kältemittel KW - condensation KW - microchannels KW - minichannels KW - heat transfer coefficient KW - pressure drop KW - refrigerants KW - Wärmeübergangszahl Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46358 SN - 2076-3417 VL - 14 IS - 7 PB - MDPI ER - TY - JOUR A1 - Zengin, İbrahim A1 - Erdoğan, Beytullah A1 - Benim, Ali Cemal T1 - CFD and Taguchi based optimization of air driven single stage partial admission axial turbine blade profiles JF - Energy KW - Taguchi-Methode KW - Numerische Strömungssimulation KW - Axialturbine KW - Beschaufelung KW - Optimierung KW - Impulse turbine KW - Partial-admission Y1 - 2024 U6 - https://doi.org/10.1016/j.energy.2024.130333 SN - 0360-5442 VL - 290 PB - Elsevier ER - TY - JOUR A1 - Yalçınkaya, Orhan A1 - Durmaz, Ufuk A1 - Tepe, Ahmet Ümit A1 - Benim, Ali Cemal A1 - Uysal, Ünal T1 - Heat and Flow Characteristics of Aerofoil-Shaped Fins on a Curved Target Surface in a Confined Channel for an Impinging Jet Array JF - Energies N2 - The main purpose of this investigation was to explore the heat transfer and flow characteristics of aero-foil-shaped fins combined with extended jet holes, specifically focusing on their feasibility in cooling turbine blades. In this study, a comprehensive investigation was carried out by applying impinging jet array cooling (IJAC) on a semi-circular curved surface, which was roughened using aerofoil-shaped fins. Numerical computations were conducted under three different Reynolds numbers (Re) ranging from 5000 to 25,000, while nozzle-to-target surface spacings (S/d) ranged from 0.5 to 8.0. Furthermore, an assessment was made of the impact of different fin arrangements, single-row (L1), double-row (L2), and triple-row (L3), on convective heat transfer. Detailed examinations were performed on area-averaged and local Nusselt (Nu) numbers, flow properties, and the thermal performance criterion (TPC) on finned and smooth target surfaces. The study’s results revealed that the use of aerofoil-shaped fins and the reduction in S/d, along with surface roughening, led to significant increases in the local and area-averaged Nu numbers compared to the conventional IJAC scheme. The most notable heat transfer enhancement was observed at S/d = 0.5 utilizing extended jets and the surface design incorporating aerofoil-shaped fins. Under these specific conditions, the maximum heat transfer enhancement reached 52.81%. Moreover, the investigation also demonstrated that the highest TPC on the finned surface was achieved when S/d = 2.0 for L2 at Re = 25,000, resulting in a TPC value of 1.12. Furthermore, reducing S/d and mounting aerofoil-shaped fins on the surface yielded a more uniform heat transfer distribution on the relevant surface than IJAC with a smooth surface, ensuring a relatively more uniform heat transfer distribution to minimize the risk of localized overheating. KW - Beschaufelung KW - Kühlung KW - aerofoil-shaped fin KW - impinging jet array KW - cooling of turbine blades KW - heat transfer uniformity KW - pin-fin row KW - Wärmeübertragung KW - Turbine Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46387 SN - 1996-1073 VL - 17 IS - 5 PB - MDPI ER - TY - JOUR A1 - Başaran, Anıl A1 - Benim, Ali Cemal T1 - Development of Correlations Based on CFD Study for Microchannel Condensation Flow of Environmentally Friendly Hydrocarbon Refrigerants JF - Energies N2 - A CFD simulation of the condensation flow of R600a and R290 within microchannels was conducted to explore the effect of mass flux, hydraulic diameter, and vapour quality on heat transfer rate and pressure drop. Data obtained from CFD simulations were used to develop new heat transfer and pressure drop correlations for the condensation flows of R600a and R290, which are climate-friendly refrigerants. Steady-state numerical simulations of condensation flow of refrigerants were carried out inside a single circular microchannel with diameters varying between 0.2 and 0.6 mm. The volume of fluid approach was used in the proposed model, calculating the interface phase change using the Lee model. The CFD simulation model was validated via a comparison of the simulation results with the experimental data available in the literature. It is found that the newly developed Nu number correlation shows a deviation, with an Ave-MAE of 11.16%, compared to those obtained by CFD simulation. Similarly, the deviation between friction factors obtained by the newly proposed correlation and those obtained by CFD simulation is 20.81% Ave-MAE. Widely recognized correlations that are applicable to the condensation of refrigerants within small-scale channels were also evaluated by comparing newly developed correlations. It is concluded that the newly proposed correlation has a higher accuracy in predicting the heat transfer coefficient and pressure drop. This situation can contribute to the creation of a sustainable system via the use of microchannels and climate-friendly refrigerants, like R600a and R290. KW - Druckabfall KW - Numerische Strömungssimulation KW - Kältemittel KW - condensation flow KW - heat transfer coefficient KW - pressure drop KW - microchannel KW - CFD simulation KW - climate-friendly refrigerants KW - hydrocarbon refrigerants Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46398 SN - 1996-1073 VL - 17 IS - 7 PB - MDPI ER - TY - JOUR A1 - Sulaiman, Mohammed A. A1 - Adham, Ahmed M. A1 - Hasan, Hasan F. A1 - Benim, Ali Cemal A1 - Anjal, Hassan A. T1 - Performance analysis of novel dew point evaporative cooler with shell and tube design through different air-water flow configurations JF - Energy KW - Verdunstungskühlung KW - Dew point evaporator KW - Chilled air-water production KW - Energy and thermal performance analysis KW - Heat and mass diffusion Y1 - 2024 U6 - https://doi.org/10.1016/j.energy.2023.129922 SN - 0360-5442 VL - 289 PB - Elsevier ER - TY - JOUR A1 - de Jonge, Niek F. A1 - Mildau, Kevin A1 - Meijer, David A1 - Louwen, Joris J. R. A1 - Bueschl, Christoph A1 - Huber, Florian A1 - van der Hooft, Justin J. J. T1 - Good practices and recommendations for using and benchmarking computational metabolomics metabolite annotation tools JF - Metabolomics N2 - Background Untargeted metabolomics approaches based on mass spectrometry obtain comprehensive profiles of complex biological samples. However, on average only 10% of the molecules can be annotated. This low annotation rate hampers biochemical interpretation and effective comparison of metabolomics studies. Furthermore, de novo structural characterization of mass spectral data remains a complicated and time-intensive process. Recently, the field of computational metabolomics has gained traction and novel methods have started to enable large-scale and reliable metabolite annotation. Molecular networking and machine learning-based in-silico annotation tools have been shown to greatly assist metabolite characterization in diverse fields such as clinical metabolomics and natural product discovery. Aim of review We highlight recent advances in computational metabolite annotation workflows with a special focus on their evaluation and comparison with other tools. Whilst the progress is substantial and promising, we also argue that inconsistencies in benchmarking different tools hamper users from selecting the most appropriate and promising method for their research. We summarize benchmarking strategies of the different tools and outline several recommendations for benchmarking and comparing novel tools. Key scientific concepts of review This review focuses on recent advances in mass spectral library-based and machine learning-supported metabolite annotation workflows. We discuss large-scale library matching and analogue search, the current bloom of mass spectral similarity scores, and how molecular networking has changed the field. In addition, the potentials and challenges of machine learning-supported metabolite annotation workflows are highlighted. Overall, recent developments in computational metabolomics have started to fundamentally change metabolomics workflows, and we expect that as a community we will be able to overcome current method performance ambiguities and annotation bottlenecks. KW - Metabolomik KW - Massenspektrometrie KW - Maschinelles Lernen KW - Benchmarking KW - Mass fragmentation spectra Y1 - 2022 U6 - https://doi.org/10.1007/s11306-022-01963-y SN - 1573-3890 VL - 18 IS - 12 PB - Springer Nature ER - TY - JOUR A1 - Skalska, Agata T1 - Stefania Wilczyńska – the Woman behind Korczak!? JF - Pedagogika-Pedagogy N2 - Stefania Wilczyńska was the main educator of the orphanage run by Janusz Korczak (Henryk Goldszmit 1878 – 1942) as director from 1912 – 1942. Unlike Korczak, Wilczyńska only produced a few writings, which are only available in Polish. There is also very little secondary literature on Wilczyńska. This article addresses this research desideratum and aims to broaden the picture of Stefania Wilczyńska and make her known. Not only did Korczak die together with the children, but Stefania Wilczyńska accompanied them as well. She had previously returned from what was then Palestine to stand by Korczak and the children due to the critical political situation. Korczak had numerous other commitments during his lifetime, but Stefania Wilczyńska was the one constant in the orphanage, working and maintaining the organisational structure of the orphanage. KW - Wilczyńska, Stefania KW - Korczak, Janusz KW - Waisenhaus KW - Dom Dziecka Imienia Janusza Korczaka KW - Dom Sierot Y1 - 2023 U6 - https://doi.org/10.53656/ped2023-2.03 SN - 0861-3982 VL - 95 IS - 2 SP - 168 EP - 179 PB - Az-buki National Publishing House ER - TY - JOUR A1 - de Jonge, Niek F. A1 - Louwen, Joris J. R. A1 - Chekmeneva, Elena A1 - Camuzeaux, Stephane A1 - Vermeir, Femke J. A1 - Jansen, Robert S. A1 - Huber, Florian A1 - van der Hooft, Justin J. J. T1 - MS2Query: reliable and scalable MS2 mass spectra-based analogue search JF - Nature Communications N2 - Metabolomics-driven discoveries of biological samples remain hampered by the grand challenge of metabolite annotation and identification. Only few metabolites have an annotated spectrum in spectral libraries; hence, searching only for exact library matches generally returns a few hits. An attractive alternative is searching for so-called analogues as a starting point for structural annotations; analogues are library molecules which are not exact matches but display a high chemical similarity. However, current analogue search implementations are not yet very reliable and relatively slow. Here, we present MS2Query, a machine learning-based tool that integrates mass spectral embedding-based chemical similarity predictors (Spec2Vec and MS2Deepscore) as well as detected precursor masses to rank potential analogues and exact matches. Benchmarking MS2Query on reference mass spectra and experimental case studies demonstrate improved reliability and scalability. Thereby, MS2Query offers exciting opportunities to further increase the annotation rate of metabolomics profiles of complex metabolite mixtures and to discover new biology. KW - Metabolomik KW - Massenspektrometrie KW - Maschinelles Lernen KW - Reproduzierbarkeit KW - Metabolomics KW - Mass Spectrometry KW - Machine Learning KW - Complex Mixtures Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46105 SN - 2041-1723 VL - 14 PB - Springer ER - TY - JOUR A1 - Benim, Ali Cemal A1 - Korucu, Ayse T1 - Computational investigation of non-premixed hydrogen-air laminar flames JF - International Journal of Hydrogen Energy KW - Wasserstoff KW - Laminare Strömung KW - Reaktionsmechanismus KW - Stickstoffoxide KW - Hydrogen combustion KW - Non-premixed combustion KW - Laminar flames KW - Reaction mechanisms KW - Nitrogen oxide formation Y1 - 2023 U6 - https://doi.org/10.1016/j.ijhydene.2022.12.248 SN - 0360-3199 VL - 48 IS - 38 SP - 14492 EP - 14510 PB - Elsevier ER - TY - JOUR A1 - Biswas, Nirmalendu A1 - Mandal, Dipak Kumar A1 - Bose, Sharmistha A1 - Manna, Nirmal K. A1 - Benim, Ali Cemal T1 - Experimental Treatment of Solar Chimney Power Plant — A Comprehensive Review JF - Energies N2 - Solar chimney power plants (SCPPs) are encouraging sustainable energy sources due to their low cost, abundance, low maintenance, and eco-friendliness. However, despite significant efforts to optimize SCPP design, their efficiency and power generation capabilities remain limited. Researchers have explored modifications in plant geometry and hybridization to improve efficiency. Despite extensive work in this area, commercialization of SCPPs has not yet been achieved. Most of the research is numerical and may differ from real-world practical use. The number of experimental studies is also relatively small. To facilitate commercialization, further investigation with practical and feasible dimensions is required. This comprehensive review paper aims to provide an in-depth analysis of experimental approaches and advancements in the field of SCPPs. The paper begins with an introduction, highlighting the background, significance, and objectives of the review. It provides an overview of the plants, discussing their principles and operation as innovative renewable energy systems. The historical development and evolution of solar chimneys are explored, shedding light on their progression over time. Case studies of operational hybrid SCPPs are examined to showcase real-world applications and performance. The paper also addresses environmental impacts and sustainability considerations associated with SCPPs. Furthermore, recommendations for future research and development in this field are provided to guide researchers and industry professionals. This study focuses on the possibility of commercialization of both standalone and hybrid SCPPs. KW - Erneuerbare Energien KW - Aufwindkraftwerk KW - Nachhaltigkeit KW - Zukunftserwartung KW - renewable energy KW - solar chimney power plant KW - SCPP KW - experimental KW - hybrid system KW - environmental impact KW - sustainability KW - challenges KW - future perspectives Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46139 SN - 1996-1073 VL - 16 IS - 17 PB - MDPI ER - TY - JOUR A1 - Steenmann, Anna A1 - Richter, Jessica A1 - Licht, Thomas T1 - Micro-additives and their impact on tensile and fracture performance of solder JF - Microelectronics Reliability KW - Zugversuch KW - Lot (Werkstoff) KW - Tensile tests KW - indicator of reliability KW - Micro additives KW - SAC solder KW - Lead-free solder Y1 - 2023 U6 - https://doi.org/10.1016/j.microrel.2023.115107 SN - 0026-2714 VL - 150 PB - Elsevier ER - TY - JOUR A1 - Mandal, Dipak Kumar A1 - Bose, Sharmistha A1 - Biswas, Nirmalendu A1 - Manna, Nirmal K. A1 - Cuce, Erdem A1 - Benim, Ali Cemal T1 - Solar Chimney Power Plants for Sustainable Air Quality Management Integrating Photocatalysis and Particulate Filtration: A Comprehensive Review JF - Sustainability N2 - Urban air pollution has become a pressing challenge in recent times, demanding innovative solutions. This review delves into the potential of Solar Chimney Power Plants (SCPPs) as a sustainable approach to mitigating air pollution. The idea of mitigation of pollution may be an added advantage to the use of SCPPs in practice. Recent advancements, such as the integration of photocatalytic reactors (PCRs) for the elimination of greenhouse gases (GHGs), emphasizing the importance of addressing non-CO2 GHGs like CH4 and N2O are analyzed. The novelty of this review is that it not only focuses on the shifting and removal of particulate matter but also on the removal of greenhouse gases. Numerous case studies, ranging from filter-equipped SCPPs to Solar-Assisted Large-Scale Cleaning Systems (SALSCSs), are reviewed, providing a comprehensive understanding of their design, performance, and potential benefits. This review serves as a guide for researchers and policymakers, emphasizing the need for multifaceted approaches to address the intricate nexus of air pollution, renewable energy generation, and climate change mitigation. KW - solar chimney KW - air pollution KW - greenhouse gases KW - particulate matter KW - photocatalysis KW - Luftverschmutzung KW - Photokatalyst KW - Treibhausgas KW - Feinstaub KW - Aufwindkraftwerk Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-45814 SN - 2071-1050 VL - 16 IS - 6 PB - MDPI ER - TY - JOUR A1 - Rückert, Frank Ulrich A1 - Ibrar, Burhan A1 - Ahmed, Arslan A1 - Allweyer, Benjamin A1 - Hübner, Dirk A1 - Klinger, Friedrich A1 - Knaus, Hermann A1 - Benim, Ali Cemal T1 - Fluid flow and heat transfer of a novel passive cooling system for gearless wind turbines with a power range of 3–12 MW JF - Energy N2 - Today, the gearless horizontal axis wind turbines are mainstream in wind energy industry. High demands of electric power led to bigger systems and active cooling reduces the overall efficiency of the turbines. Passive cooling systems have been examined for the first time for a gearless wind energy generator with power range of 3–12 MW. With further developed heat conductors, it is possible to operate a wind generator in a larger power class with passive cooling components. This is accompanied by enormous cost savings due to elimination of costs for active cooling elements such as the use of fans, pumps, and heat exchangers. An additional factor is the significant reduction in necessary maintenance due to the minimized incidence of corrosion and wear. Design of the cooling fins and an ideal position of the generator within the housing of the wind turbine has been objectives. Mandatory is that maximum temperatures of the generator fins should stay under 155 °C, which could be reached with several designs for different heat exchanger geometries. KW - Windturbine KW - Wärmeübertragung KW - Numerische Strömungssimulation KW - Generator KW - Kühlung KW - Passive cooling KW - Gearless wind turbine Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46594 SN - 0360-5442 VL - 312 PB - Elsevier ER - TY - JOUR A1 - Winter, Franziska Luise A1 - Diehl, Patrick A1 - Telaar, Pascal A1 - Watermann, Clara Maria A1 - Kaluza, Stefan A1 - Muhler, Martin A1 - Apfel, Ulf-Peter A1 - Zeidler-Fandrich, Barbara T1 - Influence of the catalyst precursor for cobalt on activated carbon applied in ammonia decomposition JF - Catalysis Today N2 - Ammonia is a key compound for storing and transporting green hydrogen. However, the efficient release of stored hydrogen through thermocatalytic ammonia decomposition is achievable only at temperatures around 600 °C, particularly with non-noble metal-based catalysts, which prove to be both ecologically and economically more feasible. In this study, electrically conductive activated carbon was selected as the catalyst support, chosen specifically for its suitability in achieving more energy-efficient direct reactor heating through the ohmic resistance of the catalysts. Cobalt salts were wet impregnated on activated carbon investigating the influence of different precursors (cobalt nitrate and cobalt acetate) and pyrolysis temperatures (400 °C and 600 °C) under N2 flow on the cobalt particle size and the incorporation of cobalt into the carbon matrix. TEM imaging and CO-chemisorption revealed well dispersed cobalt particles with sizes below 10 nm for the catalysts synthesized from the cobalt nitrate precursor. On the other hand, cobalt acetate led to about nine times larger Co agglomerates, which were partially detached from the carbon matrix. Moreover, this substantial difference in the Co particle size results in a significantly higher ammonia conversion for cobalt nitrate-based catalysts, achieving 94 % of ammonia conversion at 600 °C. Furthermore, the long-term stability test of the cobalt nitrate-based catalyst resulted in a slight deactivation of only 2 % ammonia conversion at 500 °C. KW - Katalyse KW - Ammoniak KW - Grüner Wasserstoff KW - Ammonia decomposition KW - Carbon supported cobalt KW - Synthesis design KW - Cobalt acetate KW - Cobalt nitrate KW - Resistance heating Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46600 SN - 0920-5861 VL - 429 PB - Elsevier ER - TY - JOUR A1 - Van Rießen, Anne A1 - Thissen, Julia A1 - Knopp, Reinhold T1 - A note on the Düsseldorfer Model for counting homeless people in a German city JF - International Journal of Population Studies N2 - This article describes the Düsseldorfer Model which was developed for the city’s homeless census in 2021. It allows focusing on the number as well as living situations of homeless people with the objective of analyzing their needs to derive concrete recommendations for action. A complete quantitative count of homeless people in the city on a key date was performed according to principles developed together with the actors of the homeless support system in Düsseldorf. Beyond that, qualitative interviews afforded insights into the living situation of homeless people from the user’s perspective. Along with the research methodology, major results are briefly presented in the article, followed by an outlook with recommendations for action. KW - Obdachlosigkeit KW - Düsseldorf KW - Obdachlosenhilfe Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46647 SN - 2424-8606 VL - 9 IS - 1 SP - 58 EP - 68 PB - AccScience ER - TY - JOUR A1 - Magin, Melanie A1 - Stark, Birgit A1 - Jandura, Olaf A1 - Udris, Linards A1 - Riedl, Andreas A1 - Klein, Miriam A1 - Eisenegger, Mark A1 - Kösters, Raphael A1 - Hofstetter Furrer, Brigitte T1 - Seeing the Whole Picture. Towards a Multi-perspective Approach to News Content Diversity based on Liberal and Deliberative Models of Democracy JF - Journalism Studies N2 - By providing diverse news content, news media are key for a well- functioning public sphere. However, agreement on how to measure news content diversity is lacking. Research often refers to democratic theory as normative reference point, but different models of democracy understand news content diversity differently. Our study makes a unique, innovative contribution to this field: (1) We develop a methodological framework for measuring news content diversity, that is a set of comprehensive measuring instruments that derive different operationalizations of topic and actor diversity each from liberal and deliberative democratic theories. (2) Considering that a good public discourse requires more than diversity, we analyze news content diversity in the context of four other journalistic standards: neutrality, rationality, discursivity, and civility. (3) We prove the applicability of our measuring instruments by means of a standardized content analysis of six German news media as a case study. The different quality profiles of these outlets our analysis reveals are explained by their different functions in the media system. Our study shows how important a multi-perspectival normative approach to news content diversity is, both empirically and theoretically. Future studies on news content diversity should make their normative foundations transparent and derive their indicators purposefully therefrom. KW - Demokratie KW - Massenmedien KW - Inhaltsanalyse KW - Journalismus KW - news content diversity KW - democratic theory KW - standardized content analysis KW - journalistic standards KW - media performance KW - journalistic quality Y1 - 2023 U6 - https://doi.org/10.1080/1461670X.2023.2178248 SN - 1461-670X VL - 24 IS - 5 SP - 669 EP - 696 PB - Taylor & Francis ER - TY - CHAP A1 - Schröder, Joachim ED - Borggräfe, Henning ED - Jah, Akim T1 - Forced Accommodation for Jews in the Context of the Deportations at the Düsseldorf Abattoir (1939–1944) T2 - Deportations in the Nazi Era. Sources and Research N2 - During the period 1941 to 1944, the former Düsseldorf abattoir served as an assembly camp for almost 6,000 Jewish men, women and children from the administrative district of Düsseldorf prior to their deportation. Their deportation was the end of a long process of disenfranchisement and social isolation, the penultimate stage of which was eviction from their own or rented housing and confinement in forced accommodation: a ‘Judenhaus’ (‘Jews house’, a tenement building where Jews were housed), communal accommodation or a camp. This paper investigates for the first time the background to and the process of ‘residential segregation’ in this region. It names the various actors of local municipal authorities and the NSDAP involved and uses examples to describe the situation faced by those who were persecuted. KW - Segregation (Soziologie) KW - Deportation KW - Nationalsozialismus KW - Regierungsbezirk Düsseldorf KW - Judenverfolgung Y1 - 2023 SN - 9783110746464 U6 - https://doi.org/10.1515/9783110746464-014 VL - 2 SP - 229 EP - 248 PB - De Gruyter ER - TY - INPR A1 - Schröder, Kay A1 - Eberhardt, Wiebke A1 - Belavadi, Poornima A1 - Ajdadilish, Batoul A1 - van Haften, Nanette A1 - Overes, Ed A1 - Brouns, Taryn A1 - Calero Valdez, André T1 - Telling stories with data - A systematic review N2 - The exponential growth of data has outpaced human ability to process information, necessitating innovative approaches for effective human-data interaction. To transform raw data into meaningful insights, storytelling, and visualization have emerged as powerful techniques for communicating complex information to decision makers. This article offers a comprehensive, systematic review of the utilization of storytelling in visualizations. It organizes the existing literature into distinct categories, encompassing frameworks, data and visualization types, application domains, narrative structures, outcome measurements, and design principles. By providing a well-structured overview of this rapidly evolving field, the article serves as a valuable guide for educators, researchers, and practitioners seeking to harness the power of storytelling in data visualization. KW - Mensch-Maschine-Kommunikation KW - Datenverarbeitung KW - Visualisierung Y1 - 2023 U6 - https://doi.org/10.48550/arXiv.2312.01164 PB - arXiv ER - TY - JOUR A1 - Kretschmar, Dominik A1 - Schmieder, Matthias A1 - Niemann, Jörg T1 - Knowledge Management Concept to Compensate a High Employee Fluctuation JF - Acta Technica Napocensis. Series: Applied Mathematics, Mechanics and Engineering N2 - Knowledge is our most valuable asset! Due to the increasing fluctuation caused by demographic change, the change in society and the industry, companies are increasingly confronted with knowledge management. Therefore, companies have problems with carrying out projects effectively. There are several models, methods and tools to develop an effective concept for knowledge management. Can the process capability of projects be ensured despite high fluctuation? What appropriate methods and tools are available to manage knowledge? These and more questions are clarified in the course of this work and presented in a conceptual proposal. KW - knowledge management KW - Wissensmanagement KW - project management KW - Projektmanagement KW - collaboration KW - Kollaboration Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-44818 UR - https://atna-mam.utcluj.ro/index.php/Acta/article/view/1031 VL - 61 IS - III SP - 483 EP - 488 ER - TY - JOUR A1 - Gerhards, Claudia T1 - Product placement on YouTube: An explorative study on YouTube creators’ experiences with advertisers JF - Convergence: The International Journal of Research into New Media Technologies N2 - During its process of diffusion, YouTube has become increasingly attractive for advertisers, not only in terms of classical commercials (like pre-roll ads) but also in terms of product placement opportunities. This article aims to explore the processes between YouTube creators and advertisers concerning product placement enquiries. For this purpose, YouTube creators from Germany ( n = 57) answered an online survey about their experiences with advertisers. The creators covered a wide range of YouTube channel genres (beauty, fashion, comedy, gaming, cooking) and differed in number of subscribers. Some creators who took part in the survey had less than 20,000 subscribers, others had between 20,000 and 500,000 subscribers and still others had more than 500,000 subscribers. How often do YouTube creators use product placement? Is paid-for placement an important source of finance for them? How professional are the relations and processes between YouTube creators and advertisers? Before presenting and discussing the results of the empirical survey of the current use of product placement, a brief history of how YouTube has become a marketing space for advertisers is provided. Y1 - 2017 U6 - https://doi.org/10.1177/1354856517736977 SN - 1354-8565 VL - 25 IS - 3 SP - 516 EP - 533 PB - SAGE Publications ER - TY - INPR A1 - Priesmann, Jan A1 - Münch, Justin A1 - Ridha, Elias A1 - Spiegel, Thomas A1 - Reich, Marius A1 - Adam, Mario A1 - Nolting, Lars A1 - Praktiknjo, Aaron T1 - Artificial Intelligence and Design of Experiments for Assessing Security of Electricity Supply: A Review and Strategic Outlook N2 - Assessing the effects of the energy transition and liberalization of energy markets on resource adequacy is an increasingly important and demanding task. The rising complexity in energy systems requires adequate methods for energy system modeling leading to increased computational requirements. Furthermore, with complexity, uncertainty increases likewise calling for probabilistic assessments and scenario analyses. To adequately and efficiently address these various requirements, new methods from the field of data science are needed to accelerate current methods. With our systematic literature review, we want to close the gap between the three disciplines (1) assessment of security of electricity supply, (2) artificial intelligence, and (3) design of experiments. For this, we conduct a large-scale quantitative review on selected fields of application and methods and make a synthesis that relates the different disciplines to each other. Among other findings, we identify metamodeling of complex security of electricity supply models using AI methods and applications of AI-based methods for forecasts of storage dispatch and (non-)availabilities as promising fields of application that have not sufficiently been covered, yet. We end with deriving a new methodological pipeline for adequately and efficiently addressing the present and upcoming challenges in the assessment of security of electricity supply. Y1 - 2021 U6 - https://doi.org/https://doi.org/10.48550/arXiv.2112.04889 PB - arXiv ER - TY - CHAP A1 - Picklum, Mareike A1 - Modzelewski, Georg A1 - Knoop, Susanne A1 - Lichtenberg, Toke A1 - Dittmann, Philipp A1 - Böhme, Tammo A1 - Fehn, Volker A1 - John, Christian A1 - Kenkel, Johannes A1 - Krieter, Philipp A1 - Niethen, Patrick A1 - Pampuch, Nicole A1 - Schnelle, Marcel A1 - Schwarte, Yvonne A1 - Stark, Sanja A1 - Steenbergen, Alexander A1 - Stehr, Malte A1 - Wielenberg, Henning A1 - Yildirim, Merve A1 - Yüzüncü, Can A1 - Pollmann, Frederic A1 - Wenig, Dirk A1 - Malaka, Rainer ED - Herrlich, Marc ED - Malaka, Rainer ED - Masuch, Maic T1 - Player Control in a Real-Time Mobile Augmented Reality Game T2 - Entertainment Computing - ICEC 2012 11th International Conference, ICEC 2012, Bremen, Germany, September 26-29, 2012 Y1 - 2012 SN - 9783642335419 U6 - https://doi.org/10.1007/978-3-642-33542-6_36 SN - 0302-9743 VL - LNISA,vol. 7522 SP - 393 EP - 396 PB - Springer Nature CY - Berlin, Heidelberg ER - TY - CHAP A1 - Krieter, Philipp A1 - Zerrer, Patrick A1 - Puschmann, Cornelius A1 - Geise, Stephanie ED - Boratto, Ludovico ED - Gena, Cristina ED - Marras, Mirko ED - Germanakos, Panagiotis ED - Popescus, Elvira T1 - Following Topics Across All Apps and Media Formats: Mobile Keyword Tracking as a Privacy-Friendly Data Source in Mobile Media Research T2 - UMAP Adjunct '24: Adjunct Proceedings of the 32nd ACM Conference on User Modeling, Adaptation and Personalization, Cagliari Italy, July 1 - 4, 2024 Y1 - 2024 SN - 979-8-4007-0466-6 U6 - https://doi.org/10.1145/3631700.3664879 SP - 126 EP - 131 PB - ACM CY - New York ER - TY - CHAP A1 - Krieter, Philipp ED - Matviienko, Andrii ED - Niess, Jasmin ED - Kosch, Thomas T1 - Recall for Good: Flexible Retrospective Mobile In-App Topic Tracking in a Privacy-Friendly Local-First Approach T2 - MUM '24: Proceedings of the International Conference on Mobile and Ubiquitous Multimedia, Stockholm Sweden December 1 - 4, 2024 Y1 - 2024 SN - 979-8-4007-1283-8 U6 - https://doi.org/10.1145/3701571.3703382 SP - 451 EP - 453 PB - ACM CY - New York ER - TY - CHAP A1 - Krieter, Philipp A1 - Viertel, Michael A1 - Breiter, Andreas ED - Lingnau, Andreas T1 - Supporting Students’ Privacy: How Does Learner Control over Their Data Affect the Dataset for Learning Analytics? T2 - DELFI 2021 19. Fachtagung Bildungstechnologien der GI ; Proceedings of DELFI Workshops 2021, 13.09.2021 Dortmund, N2 - An increasing amount of data for learning analytics is available due to the spread of digital learning environments. Collecting data on student behavior and action in these environments raises the question of how personal privacy can be addressed, as students are the most important stakeholder in the process. In our study we propose a simple but powerful approach to enhance student privacy: a switch to turn the data collection on and off. We let the students decide for themselves when they want to stop and go on with the collection of their data. In this paper, we take a closer look at how our students make use of this option and when and how this influences the collected data by exemplarily investigating the data of two of our participants in detail. In our analysis we combine system log files, screen recordings and qualitative interviews. KW - privacy KW - student empowerment KW - screen recordings KW - mobile digital learning environments KW - data collection Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:1393-opus4-7338 SN - 978-3-946757-03-0 SP - 146 EP - 157 PB - Hochschule Ruhr Wes CY - Bottrop ER - TY - CHAP A1 - Maya, Fatima A1 - Krieter, Philipp A1 - Wolf, Karsten D. A1 - Breiter, Andreas ED - Mandausch, Martin ED - Henning, Peter A. T1 - Extracting Production Style Features of Educational Videos with Deep Learning T2 - Proceedings of DELFI Workshops 2022 Karlsruhe, 12. September 2022 N2 - Enforced by the pandemic, the production of videos in educational settings and their availability on learning platforms allow new forms of video-based learning. This has a strong benefit of covering multiple topics with different design styles and facilitating the learning experience. Consequently, research interest in video-based learning has increased remarkably, with many studies focusing on examining the diverse visual properties of videos and their impact on learner engagement and knowledge gain. However, manually analysing educational videos to collect metadata and to classify videos for quality assessment is a time-consuming activity. In this paper, we address the problem of automatic video feature extraction related to video production design. To this end, we introduce a novel use case for object detection models to recognize the human embodiment and the type of teaching media used in the video. The results obtained on a small-scale custom dataset show the potential of deep learning models for visual video analysis. This will allow for future use in developing an automatic video assessment system to reduce the workload for teachers and researchers. KW - video-based learning KW - MOOC KW - video lecture design KW - deep learning KW - video features KW - object detection KW - YOLOv4-algorithm Y1 - 2022 U6 - https://doi.org/10.18420/delfi2022-ws-23 SP - 123 EP - 132 PB - Gesellschaft für Informatik e.V. CY - Bonn ER - TY - CHAP A1 - Tiator, Marcel A1 - Huhn, Calvin A1 - Geiger, Christian A1 - Grimm, Paul T1 - OpenXtract: A Blender Add-On for the Accelerated Extraction of the Objects of Interest T2 - 2022 IEEE International Conference on Artificial Intelligence and Virtual Reality (AIVR) KW - Geometrische Modellierung KW - Punktwolke KW - 3D-Grafik-Software Y1 - 2022 U6 - https://doi.org/10.1109/AIVR56993.2022.00020 SP - 99 EP - 103 PB - IEEE ER - TY - JOUR A1 - Versümer, Siegbert A1 - Blättermann, Patrick A1 - Rosenthal, Fabian A1 - Weinzierl, Stefan T1 - A comparison of methods for modeling soundscape dimensions based on different datasets JF - The Journal of the Acoustical Society of America N2 - Soundscape studies vary considerably in study design, statistical methods, and model fit metrics used. Due to this confounding of data and methods, it is difficult to assess the suitability of statistical modelling techniques used in the literature. Therefore, five different methods and two performance metrics were applied to three existing soundscape datasets to model soundscape Pleasantness and Eventfulness based on seven acoustic and three sociodemographic predictors. Datasets differed in soundscape type (urban outdoor vs indoor), experimental setting (field- vs lab-based), size, and study design (site- vs person-centered). The fixed-effects and mixed-effects methods ranged from linear to nonlinear regression based on advanced machine learning approaches. Results showed that models performed better for Eventfulness than for Pleasantness in most cases, while performance as measured by the out-of-sample R2 was dependent on the total variance of the target, especially in both field studies with imbalanced targets and groups. Nonlinear methods consistently outperformed linear regression, with random forest and extreme gradient boosting performing particularly well, while the performance levels of all nonlinear methods remained comparable. Mixed-effects models provided a more generalized, albeit slightly smaller prediction performance when tested on unknown groups. Finally, this study motivates the use of cross-validation with special splitting for analyzing small imbalanced datasets. KW - Acoustical properties KW - Audiometry KW - Psychological acoustics KW - Acoustic ecology KW - Artificial neural networks KW - Machine learning KW - Urban development KW - Finite-element analysis KW - Regression analysis KW - Statistical analysis KW - Akustische Eigenschaft KW - Audiometrie KW - Psychoakustik KW - Neuronales Netz KW - Maschinelles Lernen KW - Stadtentwicklung KW - Finite-Elemente-Methode KW - Regressionsanalyse KW - Statistische Analyse Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-48849 SN - 1520-8524 VL - 157 IS - 1 SP - 234 EP - 255 PB - AIP Publishing ER - TY - CHAP A1 - Krieter, Philipp A1 - Breiter, Andreas ED - Balie, Lynne ED - Oliver, Nuria T1 - Analyzing mobile application usage: generating log files from mobile screen recordings T2 - Proceedings of the 20th International Conference on Human-Computer Interaction with Mobile Devices and Services, Barcelona Spain, September 3 - 6, 2018 Y1 - 2018 SN - 978-1-4503-5898-9 U6 - https://doi.org/10.1145/3229434.3229450 SP - 1 EP - 10 PB - ACM CY - New York ER - TY - JOUR A1 - Köhler, Denis A1 - Boegel-Driessen, Josephine Alexandra A1 - Josupeit, Jan A1 - Issa-Keller, Sarah-Joelle A1 - Müller, Romina A1 - Stricker, Johannes T1 - Reliability and Validity of the Comprehensive Assessment of Psychopathic Personality—Self-Report—German Version (CAPP-SR-GV) in a German Non-Criminal Sample JF - Behavioral Sciences N2 - The structure of psychopathy is conceptualized differently in various models and no consensus has yet been reached. This study aimed to further clarify psychopathy’s content and structure by validating the German Comprehensive Assessment of Psychopathic Personality—Self-Report (CAPP-SR). For this purpose, we used a sample of n = 458 participants. The CAPP’s six factors were replicated in an exploratory factor analysis. Further confirmatory analysis revealed recommendations for optimizing the CAPP. Thus, both an optimized version and the original CAPP-SR were examined. The construct validity of both versions was then examined using a different self-rating instrument for psychopathy, the Triarchic Psychopathy Measure. The implications of the findings and further research directions are discussed. KW - CAPP KW - Psychopathie KW - Persönlichkeit KW - Comprehensive Assessment of Psychopathic Personality KW - CAPP-SR KW - psychopathy KW - TriPM KW - personality KW - FBSK_Webseite Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46018 SN - 2076-328X VL - 14 IS - 9 PB - MDPI ER - TY - JOUR A1 - Reims, Nancy A1 - Tophoven, Silke A1 - Rauch, Angela T1 - Bedingungen für gelingende berufliche Reha-Verläufe von Menschen mit psychischen Erkrankungen aus der Perspektive verschiedener Akteure JF - Zeitschrift für Sozialreform N2 - Menschen mit psychischen Erkrankungen sind mit besonderen Herausforderungen bei der Integration und Reintegration in den Arbeitsmarkt konfrontiert. Leistungen zur Teilhabe am Arbeitsleben (LTA) sollen dabei unterstützen. Der vorliegende Beitrag blickt auf die Situation von Menschen mit psychischen Erkrankungen in LTA der Bundesagentur für Arbeit aus verschiedenen Perspektiven. Auf Grundlage von qualitativen Interviews mit Tätigen bei Leistungserbringern, in Agenturen für Arbeit und Jobcentern sowie von beruflichen Rehabilitand*innen mit psychischen Erkrankungen selbst werden Gelingensbedingungen für ihre berufliche Rehabilitation und Arbeitsmarktintegration auf verschiedenen Ebenen herausgearbeitet. Mehr Individualität und Flexibilität in der Maßnahmeerbringung, eine kontinuierliche Betreuung und der Faktor Zeit, z. B. durch einerseits zu lange Wartezeiten und andererseits zu wenig Zeit in der Klärungsphase (Diagnostik, Assessment), im Rehabilitationsprozess und für die Nachsorge, stellen sich dabei als zentral heraus. KW - Berufliche Rehabilitation KW - Bundesagentur für Arbeit KW - Psychische Behinderhung KW - Leistungen zur Teilhabe am Arbeitsleben KW - FBSK_Webseite Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46507 SN - 2366-0295 VL - 70 IS - 3 PB - De Gruyter ER - TY - JOUR A1 - Vöcking, Mara A1 - Karrenbrock, Anne A1 - Beckmann, Andreas A1 - Vondeberg, Carmen A1 - Obert, Laura A1 - Hemming, Bernhard A1 - Minartz, Peter A1 - Bleck, Christian A1 - Cürlis, Diana A1 - Kuske, Silke T1 - Emotional and Psychological Safety in Healthcare Digitalization: A Design Ethnographic Study JF - International Journal of Public Health N2 - Emotional and psychological safety is important during the use of digital technologies in healthcare. We aimed to gain comprehensive insight into needs, influencing factors and outcomes in the context of perceived safety and digital technologies in healthcare. We employed a participatory, design ethnographic research approach with 16 participants in 10 use cases. The methods included in an iterative process were, think-aloud, guideline-based interviews, process mapping, storyboard creation, and photo documentation. A qualitative, primarily inductive data analysis and synthesis was performed. Perceived safety is influenced by various factors and unmet needs. Increased perceived safety can positively support the use of digital technologies, whereas low perceived safety can limit or even hinder its use. The needs of the different target groups should be considered throughout the entire process of digital technology development and healthcare provision to support their implementation. These findings support further research by providing specific aspects of emotional and psychological safety regarding target groups, settings, and ages and those with different levels of affinity for digital technologies. KW - Digitalisierung KW - Gesundheitswesen KW - Ethnologie KW - psychische Sicherheit KW - emotionale Sicherheit KW - FBSK_Webseite Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46556 SN - 1661-8564 VL - 69 PB - Frontiers ER - TY - JOUR A1 - Stricker, Johannes A1 - Jakob, Louisa A1 - Köhler, Denis A1 - Pietrowsky, Reinhard T1 - Six-month stability and predictive validity of the personality inventory for ICD-11 JF - BMC Psychology N2 - Background The International Classification of Diseases 11th Revision (ICD-11) personality disorder model comprises, among other elements, five maladaptive personality trait domains (negative affectivity, detachment, dissociality, disinhibition, anankastia). Recently, the personality inventory for ICD-11 (PiCD) has emerged as one of the most widely used measures of these ICD-11 personality trait domains. Methods The current study contributed to the validation of the PiCD validation by exploring its stability and predictive links with psychological distress over 6 months in a sample of 206 German community adults. Results The PiCD trait domain scales displayed strong differential (all r ≥ .80) and absolute stability (all |d| ≤ .09). Additionally, PiCD negative affectivity predicted depression, anxiety, and stress, and PiCD detachment predicted depression over 6 months beyond baseline. Conclusion In sum, this study demonstrated the stability of the PiCD trait domain scores, supporting their utility for capturing relatively stable traits as described in the ICD-11. Additionally, we provided the first evidence for the predictive validity of some of the PiCD trait domain scores. KW - ICD KW - Validität KW - Persönlichkeitsstörung KW - Persönlichkeitsfaktor KW - ICD-11 KW - Predictive validity KW - Psychological distress KW - Stability KW - FBSK_Webseite Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-46626 SN - 2050-7283 VL - 10 IS - 1 PB - Springer Nature ER - TY - JOUR A1 - Ataç, Ilker A1 - Schwiertz, Helge A1 - Jørgensen, Martin Bak A1 - Vandevoordt, Robin A1 - Hinger, Sophie A1 - Spindler, Susanne T1 - Negotiating Borders through a Politics of Scale: Municipalities and Urban Civil Society Initiatives in the Contested Field of Migration JF - Geopolitics KW - Migration KW - Flucht KW - Kommunalpolitik KW - Bürgerinitiative KW - Zivilgesellschaft KW - FBSK_Webseite Y1 - 2023 U6 - https://doi.org/10.1080/14650045.2022.2129732 SN - 1465-0045 VL - 29 IS - 2 SP - 714 EP - 740 PB - Informa ER - TY - JOUR A1 - Schneider, Sabrina A1 - Yoon, Dahlnym A1 - Mokros, Andreas A1 - Schwarz, Maximilian Fritz A1 - Baster, Angelina A1 - Köhler, Denis T1 - The Elemental Psychopathy Assessment (EPA): Factor structure and construct validity across three German samples JF - Psychological Assessment KW - Psychopathie KW - Gerichtliche Psychologie KW - Persönlichkeitsdiagnostik KW - Elemental Psychopathy Assessment KW - Konstruktvalidität KW - Faktorenanalyse KW - FBSK_Webseite Y1 - 2022 U6 - https://doi.org/10.1037/pas0001126 SN - 1939-134X VL - 34 IS - 8 SP - 717 EP - 730 PB - American Psychological Association ER - TY - JOUR A1 - Gille, Christoph A1 - Krüger, Christine A1 - Wéber, Júlia T1 - Influences of the far right on social work in Germany: systematic attacks and daily shifts JF - European Journal of Social Work T2 - Einflussnahmen der extremen Rechten auf die Soziale Arbeit in Deutschland: Systematische Angriffe und alltägliche Verschiebungen KW - Rechtsradikalismus KW - Sozialarbeit KW - FBSK_Webseite Y1 - 2022 U6 - https://doi.org/10.1080/13691457.2022.2063810 SN - 1369-1457 VL - 26 IS - 3 SP - 561 EP - 574 PB - Taylor & Francis ER - TY - JOUR A1 - Reims, Nancy A1 - Tophoven, Silke T1 - Double Burden of Disability and Poverty: Does Vocational Rehabilitation Ease the School–to–Work Transition? JF - Social Inclusion N2 - Poor young people more often face health difficulties, (learning) disabilities, and are overrepresented in special schools. Consequently, youth from poor households disproportionately frequently participate in disability‐specific programs aiming to improve their educational levels and labor market opportunities. They face a double burden of disability and poverty. In our study, we look at poor and non‐poor youth with disabilities (YPWD) who participate in vocational rehabilitation (VR) and whether VR helps them (a) in transitioning into employment and (b) in leaving poverty. We examine the association between the receipt of initial basic income support (BIS) as a poverty indicator, later labor market outcomes, and earned vocational qualification using administrative data. We make use of a sample of all persons accepted for VR in 2010 (N = 36,645). We employ logit models on VR attendees’ labor market outcomes three and five years after being accepted for VR as well as on their earned vocational qualifications. Beside initial poverty status, we control for educational level, type, and degree of disability and program pattern during the VR process. Our findings show that YPWD from poor households have a decreased likelihood of a vocational certificate and employment. Additionally, they are more likely to receive BIS than young people not from poor households and thus more likely to remain poor. In conclusion, VR seems to support poor YPWD less in their school‐to‐work transitions. Thus, disability‐specific programs should be more tailored to the social situations of participants, and counsellors should be more sensitive to their social backgrounds. KW - DOAJ KW - youth KW - vocational rehabilitation KW - labor market integration KW - school‐to‐work transition KW - germany KW - basic income support KW - FBSK_Webseite Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-40131 SN - 2183-2803 N1 - This article is part of the issue “Promoting Inclusion and Equality in Education” edited Allen Thurston (Queen’s University Belfast, UK) and Tien‐Hui Chiang (Anhui Normal University, China). VL - 9 IS - 4 SP - 92 EP - 102 PB - Cogitatio ER - TY - JOUR A1 - Manthe, Barbara T1 - On the Pathway to Violence: West German Right-Wing Terrorism in the 1970s JF - Terrorism and Political Violence KW - Forena KW - FBSK_Webseite Y1 - 2021 U6 - https://doi.org/10.1080/09546553.2018.1520701 SN - 0954-6553 SN - 1556-1836 VL - 33 IS - 1 SP - 49 EP - 70 PB - Taylor & Francis ER - TY - CHAP A1 - Galle, Bo A1 - Arellano, Santiago A1 - Conde, Vladimir A1 - Pfeffer, Melissa A1 - Barsotti, Sara A1 - Stefansdottir, Gerður A1 - Bergsson, Baldur A1 - Bergsson, Bergur A1 - Ingvarsson, Thorgils A1 - Weber, Konradin T1 - Ground based measurements of the gas emission from the Holuhraun volcanic fissure eruption on Iceland 2014/2015 T2 - Geophysical Research Abstracts: EGU General Assembly 2015 N2 - The since 31 August 2014 ongoing volcanic eruption at Holuhraun on Iceland is by far the strongest source of sulfur dioxide in Europe over the last 230 years with sustained emission rates exceeding 100 000 ton/day. This gas emission severely affects local population and has become a concern also for air traffic. The eruption has in December continued at constant pace for 3.5 months. Three scenarios are envisaged for the future; (1) the eruption stops, (2) the fissure extends under the Vattnajökul glacier and (3) Bardarbunga volcano erupts. The two later scenarios will cause increased gas emission, severe ash emissions and extended flooding. Under the scope of the EU-project FUTUREVOLC, a project with 3.5 years duration, aiming at making Iceland a supersite for volcanological research as a European contribution to GEO, we are developing a version of the Scanning DOAS instrument that is adapted to high latitudes with low UV radiation and severe meteorological conditions. Since the first day of the eruption several of these novel instruments has been monitoring the SO2 emission from the eruption. Data from our instruments are still after 3.5 months the only sustained ground-based monitoring of this gas emission. A lot of work is however needed to sustain this operation at a very remote site and under severe field conditions. At the same time the very high concentrations in the gas plume, in combination with bad meteorological conditions require the development of novel methods to derive reliable flux estimates. In this presentation we will discuss the instrumental issues and present the latest version of the emission estimates made from our measurements. KW - Luftreinhaltung KW - Vulkanismus KW - Messtechnik KW - Schwefeldioxid Y1 - 2015 UR - https://web.archive.org/web/20240616051633/https://meetingorganizer.copernicus.org/EGU2015/EGU2015-1722-1.pdf N1 - Vortragsabstract VL - 17 PB - Copernicus CY - Göttingen ER - TY - CHAP A1 - Weber, Konradin A1 - Eliasson, Jonas A1 - Arnason, Gylfi A1 - Rögnvaldsson, Ólafur A1 - Thorsteinsson, Throstur A1 - Palsson, Thorgeir A1 - Böhlke, Christoph A1 - Fischer, Christian A1 - Smith, Paul A1 - Jones, Roderic L. A1 - Tirpitz, Lukas A1 - Platt, Ulrich T1 - Airborne Investigations and WRF - Model Calculations of the Bardarbunga-Holuhraun Eruption Plume T2 - Geophysical Research Abstracts: EGU General Assembly 2015 N2 - The eruption in Holuhraun is the largest producer of lava and gas in Iceland since 1783. The Volcanic Ash Research (VAR) group organized an airborne measurement campaign including 10 flights, where emissions of SO2 and ash concentrations were measured at the source and at the far plume. The highest SO2 concentration at the source was nearly up to 100 mg/m3. This is an extremely high value, compared to other airborne campaigns and a contamination considered to cause serious illness by the Icelandic Directorate of Health. Volcanic ash consisted of very fine particles, but the concentration was low when compared to other recent eruptions. Measurements of the far plume showed that scavenging is very active. The dispersion was successfully modeled with the Weather Research and Foreast (WRF-chem) model and analysis using the model showed that a large amount of the sulphur was precipitated in the Icelandic highlands. KW - Luftreinhaltung KW - Vulkanismus KW - Vulkanasche KW - Messtechnik KW - Atmosphärisches Aerosol KW - Schwefeldioxid Y1 - 2015 UR - https://web.archive.org/web/20240719170649/https://meetingorganizer.copernicus.org/EGU2015/EGU2015-10846-1.pdf N1 - Vortragsabstract VL - 17 PB - Copernicus CY - Göttingen ER - TY - JOUR A1 - Eliasson, Jonas A1 - Yoshitani, Junichi A1 - Weber, Konradin A1 - Yasuda, Nario A1 - Iguchi, Masato A1 - Vogel, Andreas T1 - Airborne Measurement in the Ash Plume from Mount Sakurajima: Analysis of Gravitational Effects on Dispersion and Fallout JF - International Journal of Atmospheric Sciences N2 - Volcanic ash concentrations in the plume from Sakurajima volcano in Japan are observed from airplanes equipped with optical particle counters and GPS tracking devices. The volcano emits several puffs a day. The puffs are also recorded by the Sakurajima Volcanological Observatory. High concentrations are observed in the puffs and fallout driven by vertical air current, called streak fallout. Puffs dispersion is analyzed by the classical diffusion-advection method and a new gravitational dispersion method. The fluid mechanic of the gravitational dispersion, streak fallout, and classical diffusion-advection theory is described in three separate appendices together with methods to find the time gravitational dispersion constant and the diffusion coefficient from satellite photos. The diffusion-advection equation may be used to scale volcanic eruptions so the same eruption plumes can be scaled to constant flux and wind conditions or two eruptions can be scaled to each other. The dispersion analyses show that dispersion of volcanic plumes does not follow either theories completely. It is most likely diffusion in the interface of the plume and the ambient air, together with gravitational flattening of the plumes core. This means larger boundary concentration gradients and smaller diffusion coefficients than state of the art methods can predict. KW - Luftreinhaltung KW - Vulkanismus KW - Vulkanasche KW - Messtechnik KW - Atmosphärisches Aerosol Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-50955 SN - 2314-4122 VL - 2014 PB - Wiley ER - TY - JOUR A1 - Magin, Melanie A1 - Kösters, Raphael A1 - Jandura, Olaf A1 - Weiß, Ralph A1 - Stark, Birgit A1 - Udris, Linards A1 - Klein, Miriam A1 - Riedl, Andreas A. T1 - Viewpoint Diversity, Balance, Deliberativeness: Assessing the Media Performance of Migration Coverage Multi-Dimensionally Based on Deliberative Democratic Theories JF - Mass Communication and Society N2 - The issue of migration is highly salient in public debates in many countries. Given this salience and the risk of political instrumentalization, often by actors from the far right, it is important for citizens to receive high-quality, differentiated information on the migration issue. This touches upon the question of media performance. While there is abundant research on the media portrayal of the migration issue, this research strand is, surprisingly, hardly linked to research on media performance. We establish this link and present an innovative, sophisticated framework for standardized content analyses on migration. It combines three standards of media performance that are key to deliberative democratic theories—viewpoint diversity, balance, and deliberativeness—and utilizes value frames and the sociological concept of idea elements to measure viewpoint diversity and balance. A first empirical test of our newly developed approach, taking Germany as a case, shows noticeable differences in the media performance of 11 outlets analyzed. This test proves the applicability of our framework, which provides a valuable starting point for future comparative research on the media performance of migration coverage across countries and over time. KW - Meinungsvielfalt KW - Deliberative Demokratie KW - Berichterstattung KW - Migration KW - Journalismus Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-51020 SN - 1520-5436 PB - Informa ER - TY - CHAP A1 - Weber, Konradin A1 - Fischer, Christian A1 - Vogel, Andreas A1 - Pohl, Tobias A1 - Böhlke, Christoph A1 - Lau, Hendrik A1 - Eliasson, Jonas A1 - Palsson, Thorgeir ED - Mladenov, Valeri ED - Tasho, Tashev ED - Hui, Wang ED - Ivan, Kralov ED - Sergey, Stankevich ED - Pelin, Yildiz ED - Jon, Burley T1 - First results of an airborne release of volcanic ash for testing of volcanic ash plume measurement instruments T2 - Recent Advances in Energy and Environmental Management KW - Luftreinhaltung KW - Vulkanasche KW - Messtechnik KW - Forschungsflugzeug Y1 - 2013 VL - Energy, Environmental and Structural Engineering Series 13 SP - 169 EP - 172 PB - WSEAS ER - TY - CHAP A1 - Ropertz, Alexander A1 - Lamp, Torsten A1 - Douard, Mathilde A1 - Weber, Konradin A1 - Gaertner, Andrea A1 - Elbers, C. A1 - Nitz, R. ED - Cecchi, Giovanna ED - Lamp, Torsten ED - Reuter, Rainer ED - Weber, Konradin T1 - Calibration of a high-resolution open-path FTIR spectrometer combined with an adjustable 100-m multipass cell T2 - SPIE Proceedings, Remote Sensing of Vegetation and Water, and Standardization of Remote Sensing Methods KW - Luftreinhaltung KW - FT-IR-Spektroskopie KW - Messtechnik KW - Kalibrieren (Messtechnik) Y1 - 1997 U6 - https://doi.org/10.1117/12.274749 SN - 0277-786X VL - 3107 SP - 137 EP - 147 PB - SPIE ER - TY - CHAP A1 - Weber, Konradin A1 - Eickel, Karl-Heinz ED - Cecchi, Giovanna ED - Lamp, Torsten ED - Reuter, Rainer ED - Weber, Konradin T1 - Standardization of open-path FTIR measurements in Germany T2 - SPIE Proceedings, Remote Sensing of Vegetation and Water, and Standardization of Remote Sensing Methods KW - Luftreinhaltung KW - FT-IR-Spektroskopie KW - Messtechnik Y1 - 1997 U6 - https://doi.org/10.1117/12.274753 SN - 0277-786X VL - 3107 SP - 174 EP - 176 PB - SPIE ER -