https://hdl.handle.net/20.500.12738/2 Publications with full text files / Publikationen mit Volltext(dateien) Tue, 14 Jul 2026 05:29:34 GMT 2026-07-14T05:29:34Z https://hdl.handle.net/20.500.12738/19163.2 Title: Flexibility potential of heavy-duty battery electric vehicles depots for congestion management in medium-voltage grids Authors: Decher, Simon; Grasenack, Martin; Schäfers, Hans; Timmerberg, Sebastian Abstract: This paper demonstrates how flexibility from heavy duty vehicle depots can be utilized to relieve grid congestion. Through the utilisation of charging simulations alongside bench-mark grid models and datasets, the impact of depot charging on the distribution network is determined. The findings indicate that depot charging can facilitate the mitigation of grid congestion during periods of substantial renewable energy feed-in. The exploitation of demand flexibility potential yields additional synergies. Mon, 13 Jul 2026 10:50:51 GMT https://hdl.handle.net/20.500.12738/19163.2 2026-07-13T10:50:51Z https://hdl.handle.net/20.500.12738/19264 Title: Heuristic cues and healthiness perceptions : how Gen-Z students evaluate processed foods in South Africa Authors: Meyerding, Stephan G. H.; Horstmann, Lucia V.; Grobbelaar, Heleen Abstract: South Africa is undergoing a nutrition transition characterised by increased consumption of processed foods and rising diet-related health risks. Understanding how consumers evaluate the healthiness of such products is therefore critical. This study investigates how Generation Z students in South Africa construct healthiness judgments across three processed food categories—crisps, snack bars, and beverages—and examines the role of intrinsic and extrinsic product cues in these evaluations. Three focus groups (N = 30) were conducted using paired product comparisons and semi-structured discussions, and the data were analysed using qualitative content analysis. The findings show that perceived healthiness is not derived from objective nutritional assessment alone but is constructed through context-dependent cue utilization. Across categories, participants relied predominantly on extrinsic, easily interpretable cues—particularly packaging design, brand familiarity, and price—while engaging less consistently with detailed nutritional information. At the same time, the relative importance of cues varied by product category, with ingredient-related considerations more salient for beverages and visual and brand-related cues dominating in snack categories. Price played a dual role, functioning both as a heuristic signal of quality and healthiness and as a constraint on accessible choices. The study contributes to consumer food choice research by providing multi-category qualitative evidence of how healthiness perceptions are constructed through hierarchical and context-dependent cue use in an emerging market setting. The findings offer implications for food marketing, product design, and public health interventions aimed at improving consumer decision-making. Fri, 10 Jul 2026 09:13:08 GMT https://hdl.handle.net/20.500.12738/19264 2026-07-10T09:13:08Z https://hdl.handle.net/20.500.12738/19408 Title: Modellbasierte Systementwicklung hybrid-elektrischer Antriebsstränge in der Luftfahrt Authors: Albrecht, Tobias; Kochan, Kay; Netzel, Thomas; Traulsen-Pöschel, Flemming; Rohwer, Jakob Abstract: Im Forschungsprojekt BeHyPSy entwickelt die HAW Hamburg mithilfe modellbasierter Systementwicklung (MBSE) hybrid-elektrische Antriebssysteme für Ultraleichtflugzeuge. Durch Simulation, Architekturoptimierung und experimentelle Validierung an einem Wasserstoff-Teststand werden effiziente, sichere und emissionsarme Antriebskonzepte auf Basis von Brennstoffzellen- und Batterietechnologien entwickelt und bewertet. Fri, 10 Jul 2026 07:19:48 GMT https://hdl.handle.net/20.500.12738/19408 2026-07-10T07:19:48Z https://hdl.handle.net/20.500.12738/19574 Title: Realwind : ganzheitliche Windparkoptimierung Authors: Seifermann, Pascal; Rohlfing, Lutz; Störtenbecker, Sven; Dalhoff, Peter Thu, 09 Jul 2026 12:32:20 GMT https://hdl.handle.net/20.500.12738/19574 2026-07-09T12:32:20Z