Results 101 to 110 of about 508,346 (348)

Parametrierung einer kontinuierlichen DC-Spannungsregelcharakteristik für vermaschte HGÜ-Netze [PDF]

, 2015
The energy turnaround caused a lot of challenges for the power system as well in the distribution level as in the transmission level. For the transmission level significant distances between areas of high renewable generation, storage capacities and ...
Linke, Franz, Marten, Anne-Katrin, Westermann, Dirk   +2 more
core  

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

Advanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar, Jorge Marqués‐Marchán, Sara Catalano, Agustina Asenjo, Michael Foerster, Miguel Angel Niño, Manuel Vazquez, Fèlix Casanova, Arantxa Fraile Rodríguez, Rafael P. Del Real, Oksana Chubykalo‐Fesenko, Cristina Bran   +11 more
wiley   +1 more source

Efficiency Analyses of a DC Residential Power Distribution System for the Modern Home

Advances in Electrical and Computer Engineering, 2015
The electric power system started as DC back in the nineteenth century. However, the DC paradigm was soon ousted by AC due to inability of DC to change its voltage level.
GELANI, H. E., DASTGEER, F.
doaj   +1 more source

Fault Overload Control Method for High-Proportion Wind Power Transmission Systems Based on Emergency Acceleration of Doubly-Fed Induction Generator

IEEE Access, 2019
With a high proportion of wind power being transmitted through ac and dc lines, a new power grid pattern has gradually emerged. A dc inverter is prone to commutation failure, which may lead to cascading trip of ac lines for overload, resulting in serious
Jinxin Ouyang, Zhen Zhang, Ting Tang, Mingyu Pang, Mengyang Li, Di Zheng   +5 more
doaj   +1 more source

High Entropy Wide‐Bandgap Borates with Broadband Luminescence and Large Nonlinear Optical properties

Advanced Functional Materials, EarlyView.
High‐entropy rare‐earth borates exhibit excellent nonlinear optical and broadband luminescence properties arising from multi‐component doping, chemical disorder, increased configurational entropy, and increased lattice and electronic anharmonicity. This formulation enabled us to obtain a large, environmentally stable single crystal with 3X higher laser‐
Saugata Sarker, Yu Wang, Yongwen Sun, Caeli Benyacko, Saeed S.I. Almishal, Tao Zhou, Zhiyu Zhang, Jadupati Nag, Himirkanti Sarkar, Jeffrey Shallenberger, Hemant Yennawar, Yang Yang, Jon‐Paul Maria, Zhiqiang Mao, Venkatraman Gopalan   +14 more
wiley   +1 more source

Preliminary power train design for a state-of-the-art electric vehicle [PDF]

Power train designs which can be implemented within the current state-of-the-art were identified by means of a review of existing electric vehicles and suitable off-the-shelf components.
Hahn, W. F., Mighdoll, P.
core   +1 more source

Legislative History of the Fair Labor Standards Act [PDF]

, 1939
With recent advances in power electronic technology, High-Voltage Direct Current (HVDC) transmission system has become an alternative for transmitting power especially over long distances.
Forsythe, John S.
core   +1 more source

Copper‐Based Crystalline‐Metallic Glass Composite Thin Films: A Novel Material with Enhanced Strength and Thermally Stable Nanotwins

Advanced Functional Materials, EarlyView.
A Cu‐based crystal‐glass composite with high‐density twins is identified by a fast screening technique using combinatorial sputtering together with XRD and nanoindentation mapping. This bamboo‐like structure demonstrates homogenous plastic flow and retains high strength during in situ high temperature tests, up to 1 GPa at 550°C, owing to those ...
Chunhua Tian, Amit Sharma, Krzysztof Wieczerzak, Alexander Groetsch, Manish Jain, Nicolò Maria della Ventura, Remo Widmer, Fedor F. Klimashin, Johann Michler, Jakob Schwiedrzik, Xavier Maeder   +10 more
wiley   +1 more source

The LCC type DC grids forming method and fault ride-through strategy based on fault current limiters

International Journal of Electrical Power & Energy Systems
With the integration of a large number of new energy sources into the power grid, the degree of multi power center continues to deepen, and multi-terminal DC transmission is receiving increasing attention.
Changlin Liu, Baohong Li, Yingmin Zhang, Qin Jiang, Tianqi Liu   +4 more
doaj   +1 more source

Design of wireless charging device for mine-used portable gas detector

Gong-kuang zidonghua, 2015
In view of problem of mine-used portable gas detector using battery for power supply that battery has limited capacity, and bad contacts can affect battery charging effects, design scheme of wireless charging device for mine-used portable gas detector ...
ZHANG Xinchao, WU Yincheng, HUANG Shaoji
doaj   +1 more source