Results 71 to 80 of about 7,147 (316)

INVESTIGATION AND CALCULATION OF VALLEYS OF OUTGOING FROM SUBSTATION GROUNDING CONDUCTORS FOR SHORT-CIRCUIT IN SINGLE-PHASE SHORT OF ELECTRICAL GRID

Electrical engineering & Electromechanics, 2015
Introduction. Earthing device electrical substation in modern conditions must meet both the requirements of electrical safety of people and animals, as well as electromagnetic compatibility requirements established her electrical equipment.
V. I. Nizhevskyi, I. V. Nizhevskyi, B. Ynoyatov, S. Nasryddyny   +3 more
doaj  

Enhanced flat-topped modulation for MMC control in HVDC transmission systems [PDF]

, 2017
Flat-topped modulation is a member of the family of triplen-series injection techniques that have been extensively utilized in PWM inverter systems to increase the DC-link, and hence semiconductor, utilization.
Fletcher, John E., Li, Rui, Williams, Barry W., Xu, Lie   +3 more
core   +1 more source

Meningovascular Inflammation in Cerebral Amyloid Angiopathy‐Related Cortical Superficial Siderosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT The role of inflammation in cortical superficial siderosis (cSS), a marker of cerebral amyloid angiopathy (CAA) linked to high hemorrhage risk, is unclear. We examined 15 patients with cSS using 3 T post‐contrast vessel wall MRI (VWI) and CSF analysis.
Philipp Arndt, Eya Khadhraoui, Sebastian J. Müller, Katja Neumann, Hendrik Mattern, Sven G. Meuth, Valentina Perosa, Andreas Charidimou, Stefanie Schreiber   +8 more
wiley   +1 more source

Paraquat, diuron and atrazine for the renewal of chemical weed control in northern Cameroon [PDF]

, 1997
Au Nord-Cameroun, le paraquat est vulgarisé depuis 1987 et le diuron et l'atrazine depuis 1992, à la suite des recommandations de la SODECOTON et des tests réalisés par l'IRA en collaboration avec le CIRAD. Le paraquat montre une efficacité importante et
Gaudard, Lucien, Martin, José
core  

Assessing the ecological soundness of organic and conventional agriculture by means of life cycle assessment (LCA) - a case study of leek production [PDF]

, 2009
Purpose – Sustainable agriculture implies the ability of agro-ecosystems to remain productive in the long-term. It is not easy to point out unambiguously whether or not current production systems meet this sustainability demand.
Eline de Backer, Guido van Huylenbroek, Joris Aertsens, Sofie Vergucht, Walter Steurbaut   +4 more
core   +1 more source

Reimagining Earth in the Earth System

Journal of Advances in Modeling Earth Systems
AbstractTerrestrial, aquatic, and marine ecosystems regulate climate at local to global scales through exchanges of energy and matter with the atmosphere and assist with climate change mitigation through nature‐based climate solutions. Climate science is no longer a study of the physics of the atmosphere and oceans, but also the ecology of the ...
Gordon B. Bonan, Oliver Lucier, Deborah R. Coen, Adrianna C. Foster, Jacquelyn K. Shuman, Marysa M. Laguë, Abigail L. S. Swann, Danica L. Lombardozzi, William R. Wieder, Kyla M. Dahlin, Adrian V. Rocha, Michael D. SanClements   +11 more
openaire   +2 more sources

Diffusion Spectrum Imaging Maps Early Axonal Loss and a Unique Progressive Signal in Neuronal Intranuclear Inclusion Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang, Yixiu Pei, Xiaobao Hu, Ying Xiong, Fang Wang, Yanyan Yu, Min Zhu, Dandan Tan, Meihong Zhou, Daojun Hong, Fuqing Zhou   +10 more
wiley   +1 more source

Fluid Biomarkers of Disease Burden and Cognitive Dysfunction in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Identifying objective biomarkers for progressive supranuclear palsy (PSP) is crucial to improving diagnosis and establishing clinical trial and treatment endpoints. This study evaluated fluid biomarkers in PSP versus controls and their associations with regional 18F‐PI‐2620 tau‐PET, clinical, and cognitive outcomes.
Roxane Dilcher, Charles B. Malpas, Stuart J. McDonald, William T. O’Brien, Craig Despott, Kelly L. Bertram, Matthew P. Pase, Lukas Frontzkowski, Meng Law, Terence J. O’Brien, Lucy Vivash   +10 more
wiley   +1 more source

A Single-Phase Ground Fault Line Selection Method in Active Distribution Networks Based on Transformer Grounding Mode Modification

Energies
Reliable fault line selection technology is crucial for preventing fault range expansion and ensuring the reliable operation of distribution networks.
Shi Su, Qingyang Xie, Pengfei Ma, Yuan Li, Fahui Chen, Jing Zhang, Botong Li, Changqi Wang   +7 more
doaj   +1 more source

ANALYSIS OF OVERVOLTAGES OCCURRING AT GROUNDING FAULTS IN A MEDIUM VOLTAGE NETWORK DEPENDING ON THE NEUTRAL TREATMENT [PDF]

Journal of Sustainable Energy, 2017
The importance of the system earthing in electrical station 110kV/MV is much known, ways to treat the neutral directly affecting the behavior of the system regarding the maximum level of earth-fault currents and of the overvoltages that can occur.
MIRCEA. P. M., URSU.D., MARIN. I., MIRCEA. I., BUZATU. G.C.   +4 more
doaj