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Cold Load Pickup Model Adequacy for Power System Restoration Studies
(2022-10-18)
When a grid section is re-energized after an interruption, the load behaviour can be significantly different from normal operation. In this manuscript, the impact of the phenomenon—known as cold load pickup—is investigated by evaluating 31 time series measured after network outages in Austria and Germany. Its impact on power system restoration and the adequacy of the most common type of simplified model for such investigations is assessed by the time domain simulation of a restoration setting involving the parallel ...
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Phenotypic and genetic diversity of domestic yak (Bos grunniens) in high-altitude rangelands of Gilgit-Baltistan, Pakistan
(2022-07-04)
Due to climate change, irrigated agriculture may become restricted in the mountain valleys in northern Pakistan in the future. Hence, the importance of yak (Bos grunniens) keeping in the mountain ranges as risk-mitigating strategy for mountain dwellers will potentially increase. However, little is known about the current status of the domestic yak in this region. We therefore used phenotypic characteristics and 13 microsatellite loci to determine the phenotypic differences and the level of genetic differentiation ...
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Neue Rechte, Rechtspopulismus und Soziale Arbeit
(2022-08-02)
Die Einleitung in den Themenschwerpunkt „Neue Rechte, Rechtspopulismus und Soziale Arbeit“ skizziert aktuelle rechtspopulistische respektive neurechte Entwicklungen und stellt deren Bezugspunkte zur Sozialen Arbeit dar.
Waren zu Beginn der 2000er Jahre Reaktionen auf mögliche Zusammenhänge rechter Orientierungen und Sozialer Arbeit noch verhalten bis abwehrend, so hat die Auseinandersetzung mit entsprechenden Phänomenen in den letzten Jahren deutlich zugenommen. Die Einleitung in den Schwerpunkt diskutiert Konzepte, ...
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Influence of Fiber Volume in Hybrid Short Glass/Cellulose Reinforced Thermoplastic Compounds
(2022-09-22)
Glass fibers (GF) and regenerated cellulose fibers (RCF) are possible partners in the hybrid reinforcement of thermoplastics because of their different properties. Due to the weak bonding properties of polypropylene, coupling agents are used and the fiber volume content is set high to achieve high reinforcing effects. A lower fiber content of GF can raise the toughness properties of a reinforced polypropylene which is investigated in this study with different ratios of GF and RCF.
The composites are tested in tensile ...
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Take it or leave it? Investigating the ambivalence and willingness to pay for suboptimal fruits and vegetables among organic consumers in Germany
(2022-10-06)
Organic fruits and vegetables are often visually “suboptimal” because organic farming uses neither pesticides nor synthetic fertilisers to improve the cosmetic appearance of the produce. Despite the organic sector's natural and sustainable image, such foods often never reach the market or are left on the shelf, greatly increasing food waste. The current work hypothesised that an important factor in the rejection of suboptimal food is consumers' experience of ambivalence regarding these products. Data were collected ...
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Sharing and Space‐Commoning Knowledge Through Urban Living Labs Across Different European Cities
(2022-08-25)
While the growing commodification of housing and public spaces in European cities is producing urban inequalities affecting mostly migrant and vulnerable populations, there are also manifold small-scale neighbourhood-based collaborative processes that seek to co-produce shared urban resources and contribute to more resilient urban developments. As part of the ProSHARE research project that investigates conditions in which sharing takes place and can be expanded to less-represented populations, we focus here on sharing ...
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Effects of Mangosteen Peel Phenolic Compounds on Tilapia Skin Collagen-Based Mineralized Scaffold Properties
(2022-09-16)
A proper valorization of biological waste sources for an effective conversion into composites for tissue engineering is discussed in this study. Hence, the collagen and the phenolic compound applied in this investigation were extracted from waste sources, respectively, fish industry rejects and the peels of the mangosteen fruit. Porous scaffolds were prepared by combining both components at different compositions and mineralized at different temperatures to evaluate the modifications in the biomimetic formation of ...
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Das Wohlbefinden von Kindern als elterliches Konstrukt
(2022-07-03)
Der Beitrag beschäftigt sich mit der Perspektive von Eltern auf das Wohlbefinden ihrer Kinder unter dem Eindruck der pandemiebedingten Schließungen von Kindertageseinrichtungen. Auf Basis qualitativ-rekonstruktiver Analysen kann gezeigt werden, wie sich die Wahrnehmungen der eigenen und der kindlichen Handlungsmächtigkeit bedingen. In Verbindung mit der Verfügbarkeit des Zugangs zur sog. Notbetreuung beeinflusst dieses Verhältnis das Belastungserleben.
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Multi-Task Autoencoders and Transfer Learning for Day-Ahead Wind and Photovoltaic Power Forecasts
(2022-10-30)
Integrating new renewable energy resources requires robust and reliable forecasts to ensure a stable electrical grid and avoid blackouts. Sophisticated representation learning techniques, such as autoencoders, play an essential role, as they allow for the extraction of latent features to forecast the expected generated wind and photovoltaic power for the next seconds up to days. Thereby, autoencoders reduce the required training time and the time spent in manual feature engineering and often improve the forecast ...
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Redoxtrons – An experimental system to study redox processes within the capillary fringe
(2023-02-02)
Spatiotemporal characterisation of the soil redox status within the capillary fringe (CF) is a challenging task. Air-filled porosities (ε), oxygen concentration (O₂) and soil redox potential (Eₕ) are interrelated soil variables within active biogeochemical domains such as the CF. We investigated the impact of water table (WT) rise and drainage in an undisturbed topsoil and subsoil sample taken from a Calcaric Gleysol for a period of 46 days. We merged 1D (Eₕ and matric potential) and 2D (O₂) systems to monitor at ...