Results 81 to 90 of about 37,108 (295)
Angewandte Chemie, EarlyView.The cupula is a membrane within the vestibular organ that senses rotatory accelerations of the head. Metabolic glycoengineering in combination with bioorthogonal labeling demonstrates that in adult zebrafish – being a model for the human inner ear – this membrane is constantly renewed.
Hans Scherer +4 more
wiley +2 more sources
A DFIG low- and High-Voltage cascading failure through strategy based on GSC and RSC joint control
International Journal of Electrical Power & Energy SystemsIn wind power DC transmission systems, commutation failures cause significant reactive power fluctuations at the direct current (DC) transmission end, leading to sequential changes in voltage from low to high and often causing wind turbines to disconnect
Xu Zhang, Xin Xu, Yi Wang, Juan Wei
doaj +1 more source
Fault ride-through of renewable energy conversion systems during voltage recovery
Journal of Modern Power Systems and Clean Energy, 2016 Asymmetrical voltage swells during recovery of a short-circuit fault lead to fluctuations in the dc-link voltage of a renewable energy conversion system (RECS), and may induce reversed power flow and even trip the RECS. This paper studies characteristics
Ruiqi Li, Hua Geng, Geng Yang
doaj +1 more source
Advanced Intelligent Systems, EarlyView.Feature from recent image foundation models (DINOv2) are useful for vision tasks (segmentation, object localization) with little or no human input. Once upsampled, they can be used for weakly supervised micrograph segmentation, achieving strong results when compared to classical features (blurs, edge detection) across a range of material systems.
Ronan Docherty +2 more
wiley +1 more source
Electrocatalytic C─N Coupling in Aqueous Solutions for High‐Value Product Synthesis
Angewandte Chemie, EarlyView.Electrocatalytic C–N coupling offers a sustainable route to synthesize crucial organic nitrogen compounds from abundant feedstocks under mild conditions. This review examines recent progress in overcoming key challenges, like slow kinetics and competing reactions through advanced catalysts and novel mechanisms, paving the way for transforming chemical ...
Yunpeng Zuo +3 more
wiley +2 more sources
Implications of fault current limitation for electrical distribution networks [PDF]
, 2010 This paper explores the potential future need for fault current limitation in the UK's power system, and some of the technical implications of this change.
Blair, S.M. +5 more
core +1 more source
American Journal of Agricultural Economics, EarlyView.Abstract Large‐scale land reforms constitute a substantial redistribution of wealth and reallocation of agricultural land, which is a major form of asset and production input in developing countries. While land redistribution (from the rich to the poor) remains a highly controversial issue, extensive evidence on its effect is limited.
Devashish Mitra +3 more
wiley +1 more source
Fault Ride-through Capability Enhancement of Voltage Source Converter-High Voltage Direct Current Systems with Bridge Type Fault Current Limiters [PDF]
Energies, 2017 This paper proposes the use of bridge type fault current limiters (BFCLs) as a potential solution to reduce the impact of fault disturbance on voltage source converter-based high voltage DC (VSC-HVDC) systems. Since VSC-HVDC systems are vulnerable to faults, it is essential to enhance the fault ride-through (FRT) capability with auxiliary control ...
Md Shafiul Alam, Mohammad Abido
openaire +2 more sources
Structural problems without structural solutions? Youth leaders' perceptions of their community
American Journal of Community Psychology, EarlyView.Abstract As young people explore and reflect on the conditions of their neighborhoods and communities, they can forge a critical consciousness—merging their perspectives and analysis to direct both individual and collective actions. Photovoice is a methodological tool that allows participants to document their perspectives and analysis and discuss with
Linnea L. Hjelm +4 more
wiley +1 more source
Hierarchical control-based fault ride-through of VSC-HVDC considering impacts of renewable energy
International Journal of Electrical Power & Energy SystemsWhen a short-circuit fault occurs at the receiving-end grid, the unbalanced power in voltage source converter based high voltage direct current (VSC-HVDC) should be consumed to prevent excessive DC voltage rise, thereby enabling fault ride-through ...
Jinxin Ouyang, Fan Mo, Jiyu Chen
doaj +1 more source