Results 81 to 90 of about 19,230 (226)

Sequence analysis based DSP controller for dynamic voltage restorer (DVR) [PDF]

open access: yes, 2008
The paper examines the behaviour of a dynamic voltage restorer (DVR) under balanced/unbalanced supply voltage sag condition, and restricted DVR injection capability (e.g. limited to 50% of the supply voltage injection).
Basu, Malabika   +9 more
core   +3 more sources

Two-Feeder Dynamic Voltage Restorer for Application in Custom Power Parks

open access: yesEnergies, 2019
The custom power park (CPP) is a concept that has been developed for the purpose of dealing with power quality problems. The CPP is powered by two independent feeders and consists of different types of custom power devices for compensation (dynamic ...
Sergio Constantino Yáñez-Campos   +2 more
doaj   +1 more source

Against the odds: Nesting specialization and foraging ecology provide insights into climate change responses in a mountain bee

open access: yesInsect Conservation and Diversity, EarlyView.
A unique high‐elevation Exoneura bee defies typical elevation‐driven declines in bee activity, nesting exclusively in dead branches of snow gums near the alpine tree line. Nesting and foraging are tightly linked to snow gum presence, with most activity occurring within 30 m of these trees. Biophysical modelling indicates the bee's thermally constrained
Joshua M. Coates   +3 more
wiley   +1 more source

Integrating virtual reality experiences with preservice and inservice science teachers

open access: yesSchool Science and Mathematics, EarlyView.
Abstract VR environments offer opportunities for novel science learning experiences. This article discusses how we integrated virtual reality experiences with preservice and inservice science teachers. We explore the affordances of VR for enhancing science education and its potential applications in secondary level classrooms. Specifically, we describe
Alec Bodzin   +2 more
wiley   +1 more source

Discrete Valuation Ring (DVR) dan daerah dedekind [PDF]

open access: yes, 2010
Salah satu bentuk pengembangan daerah integral adalah daerah Dedekind. Pada mulanya, konsep daerah Dedekind diperkenalkan oleh seorang matematikawan Jerman bernama Richard Dedekind.
RossitaAdikawati
core  

Performance Evaluation of Three Different Inverter Configurations of DVR for Mitigation of Voltage Events [PDF]

open access: yes, 2016
The voltage events namely voltage sags and voltage swells represent the most common, frequent and important power quality events in today’s power system.
Prasad, Miska; National Institute of Technology, Jamshedpur   +1 more
core   +2 more sources

In‐situ asphaltene capture with iron oxide nanoparticles in steam‐assisted gravity drainage (SAGD) for improved recovery and partial upgrading of bitumen

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 9, Page 4787-4808, September 2026.
Key improvements obtained by incorporating nanoparticles into a lab‐scale SAGD process configuration. The bar plots show enhanced oil recovery, reduced viscosity, and increased asphaltene adsorption in nanoparticle‐assisted scenarios compared with conventional SAGD.
Luis Prada   +6 more
wiley   +1 more source

Increased Binding of [18F]Nifene, a PET Imaging Probe for α4β2* Nicotinic Acetylcholinergic Receptors in Hippocampus–Subiculum of Postmortem Human Parkinson's Disease Brain

open access: yesSynapse, Volume 80, Issue 5, September 2026.
[18F]Nifene, a PET imaging probe for α4β2* nicotinic acetylcholine receptors, was used to discretely measure changes in hippocampus (HP) and subiculum (SUB) of postmortem Parkinson's disease (PD) cases compared to cognitively normal (CN) cases. Significant increased [18F]nifene binding in PD was observed.
Jogeshwar Mukherjee   +5 more
wiley   +1 more source

Sex specificity of resistance to caTAUstrophe

open access: yesAlzheimer's &Dementia, Volume 22, Issue 8, August 2026.
Abstract INTRODUCTION As amyloid beta (Aβ) accumulates, tau pathology spreads beyond medial temporal lobe (MTL) into neocortical (NEO) regions, though some older adults resist this progression, or what we call here “caTAUstrophe.” Given previous evidence of higher tau levels in women, we tested how tau resistance presented in men and women separately ...
Maria Carrigan   +21 more
wiley   +1 more source

Analisis Performa DVR Menggunakan FLC dan BESS terhadap Kedip Tegangan [PDF]

open access: yes, 2023
Power quality is a major issue in the power transfer process. This is caused by disturbances such as voltage sags, voltage spikes, harmonies, etc. Voltage sag is the most common disturbance in the electric power system.
Nasution, Azrial Aziz Azhari
core  

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