Results 91 to 100 of about 344,906 (305)

THE POWER SUPPLY SYSTEM OF THE RAILWAY AC WITH MODULAR INSERTS OF DC

Nauka ta progres transportu, 2008
The structure of the insert of direct current on the traction substation, which makes it possible to remove a number of deficiencies in the acting feeding scheme of the overhead electric transport power line of alternating current, is proposed ...
N. V. Panasenko, Yu. P. Honcharov, V. V. Ivahno, O. Ye. Ivanov, V. N. Kozachok, P. P. Morozov   +5 more
doaj  

An Optimized Coordination Strategy between Line Main Protection and Hybrid DC Breakers for VSC-Based DC Grids Using Overhead Transmission Lines

Energies, 2019
Compared with alternating current (AC) power grids, the voltage-sourced converter (VSC)-based direct current (DC) grid is a system characterized by “low damping„, as a result, once there is a short-circuit fault on the DC transmission line ...
Xiangyu Zheng, Rong Jia, Linling Gong, Guangru Zhang, Xiangyu Pei   +4 more
doaj   +1 more source

Magnetic Flux Guides by Material Extrusion

Advanced Science, EarlyView.
Magnetic flux guidance can increase inductive coupling and forces for magnetic sensors, actuators, and transducers. Here, a magnetic material extrusion method is used to fabricate flux concentration structures of arbitrary shapes with a magnetic permeability of 42. In line with simulation analysis, experimental results show that these materials provide
Jorge Cañada, Steven W. Wright, Michail E. Kiziroglou, Eric M. Yeatman, Luis F. Velásquez‐García   +4 more
wiley   +1 more source

AUTONOMOUS CAPACITIVE POWER SUPPLY FOR DEVICES WHICH MEASURES THE PARAMETERS OF THE OVERHEAD POWER LINES

Известия высших учебных заведений: Проблемы энергетики, 2017
This article consider the main types of autonomous power sources for devices, which measures characteristics of overhead power lines. The calculations of the power of capacitive power supply depending of its length for the 110 kV line were done.
V. K. Kozlov, E. R. Kirzhatskikh
doaj   +1 more source

Improving the Energy Efficiency of the MANTIS Kernel [PDF]

, 2007
Event-driven operating systems such as TinyOS are the preferred choice for wireless sensor networks. Alternative designs following a classical multi-threaded approach are also available.
Duffy, Cormac, Herbert, John, Roedig, Utz, Sreenan, Cormac J.   +3 more
core  

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

Advanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong, James Trevarthen, Igor Dolbnya, Wadwan Singhapong, Nicholas Pilato, Richard Butler, Jiraphant Srisuriyachot, Alexander J. G. Lunt   +7 more
wiley   +1 more source

Proximity of HVOTLS and Residential Rental Values in the Metropolitan Lagos [PDF]

, 2012
High Voltage Overhead Transmission Lines (HVOTLs) otherwise referred to as power-lines have been thought to influence property values over the years.
Akinjare, O. A., Akinjare, V.A., Oluwatobi, A.O.   +2 more
core  

Microglial GPR35 Ameliorates Epileptogenesis and Neuroinflammation via PDGFA Domain 2 Signaling

Advanced Science, EarlyView.
Activation of microglial G protein–coupled receptor 35 (GPR35) by L‐kynurenic acid (L‐Kyna) initiates a platelet‐derived growth factor A (PDGFA)–dependent phosphoinositide 3‐kinase–protein kinase B (PI3K–AKT) signaling cascade that dampens hippocampal neuroinflammation, thereby restraining epileptogenesis, lowering seizure susceptibility, and ...
Qi Wang, Tingting Qu, Qibing Sun, Ran Li, Junfei Dong, Yuming Du, Ziyin Xuan, Lei Wang, Hanli Li, Jianyun Sun, Fangliang Chen, Jinshuai Liu, Zifan Yang, Jianxiang Lei, Qian Yang, Bin Wang, Zhiming Zhou, Yu Wang   +17 more
wiley   +1 more source

Making predictions for overhead power lines applying predictive analytics

Вестник Северо-Кавказского федерального университета
Introduction. Currently, failures are one of the main and urgent problems for the normal functioning of power supply systems, they are at first glance unpredictable, however, in addition to accidental, there are failures that occur according to some ...
Yu. N. Kondrashova, A. M. Tretyakovͬ, A. V. Shalimov   +2 more
doaj   +1 more source

Preferences for Exposure Control of Power-Frequency Fields among Lay Opinion Leaders [PDF]

, 1994
The authors report on surveys, differing according to focus on remedial costs, of Pittsburgh-area adults indicating beliefs about possible health effects of electromagnetic fields and the acceptability of options for reducing or eliminating the potential
Adams, Jack, Bostrom, Ann, Morgan, M. Granger, Nair, Indira   +3 more
core   +1 more source