Results 31 to 40 of about 275,457 (299)

“One stone two birds” design for hollow spherical Na4Fe3(PO4)2P2O7/C cathode enabled high‐performance sodium‐ion batteries from iron rust

EcoMat, 2023
Sodium‐ion battery (SIB) is considered as a revolutionary technology toward large‐scale energy storage applications. Developing cost‐effective cathode material as well as economical synthesis procedure is a key challenge for its commercialization. Herein,
Yiqing Chen, Chongrui Dong, Long Chen, Chenglong Fu, Yubin Zeng, Qin Wang, Yuliang Cao, Zhongxue Chen   +7 more
doaj   +1 more source

Behaviour of electric drive of roller-bit drilling rig swivel head with fuzzy control

Горные науки и технологии, 2022
The efficient consumption of electric power in mining is an important task in power consumption optimization. The use of high-performance drilling rigs requires special attention to the development of energy-saving electric drive for open-cut mining ...
Nikolai M. Kuznetsov, Ivan N. Morozov
doaj   +1 more source

The behavior of subluminous X-ray transients near the Galactic center as observed using the X-ray telescope aboard Swift [PDF]

, 2009
In this paper we report on the spectral analysis of seven X-ray transients, which were found to be active during a monitoring campaign of the Galactic center carried out in 2006 and 2007 using the X-ray telescope aboard the Swift satellite. This campaign
Abbey, Alpar, Blandford, Chelovekov, Chen, Clark, Cominsky, Cooper, Cornelisse, Del Santo, Dubus, Fender, Fujimoto, Fujimoto, Garcia, Hands, Heise, Ibrahim, Illarionov, in't Zand, Jonker, Jonker, Jonker, Kallman, King, King, King, Kuulkers, Lapidus, Lasota, Lasota, Maeda, Menou, Muno, Muno, Muno, Muno, Muno, Muno, N. Degenaar, Narayan, Narayan, Okazaki, Oosterbroek, Parmar, Peng, Porquet, R. Wijnands, Romanova, Russell, Sakano, Sakano, Sidoli, Sidoli, Vaughan, Wijnands, Wijnands   +56 more
core   +2 more sources

Optical Transients [PDF]

International Astronomical Union Colloquium, 1995
AbstractWe outline and discuss the recent results of optical searches for counterparts to gamma-ray burst sources as well as related problems.
openaire   +1 more source

Conjugate Heat Transfer Investigation on Swirl-Film Cooling at the Leading Edge of a Gas Turbine Vane

Entropy, 2019
Numerical calculation of conjugate heat transfer was carried out to study the effect of combined film and swirl cooling at the leading edge of a gas turbine vane with a cooling chamber inside.
Haifen Du, Ziyue Mei, Jiayao Zou, Wei Jiang, Danmei Xie   +4 more
doaj   +1 more source

A highly active and stable Sr2Fe1.5Mo0.5O6-δ-Ce0.8Sm0.2O1.95 ceramic fuel electrode for efficient hydrogen production via a steam electrolyzer without safe gas

International Journal of Coal Science & Technology, 2022
High temperature steam (H2O) electrolysis via a solid oxide electrolysis cell is an efficient way to produce hydrogen (H2) because of its high energy conversion efficiency as well as simple and green process, especially when the electrolysis process is ...
Yao Wang, Tong Liu
doaj   +1 more source

Tile or Stare? Cadence and Sky Monitoring Observing Strategies that Maximize the Number of Discovered Transients [PDF]

, 2003
To maximize the number of transients discovered on the sky, should sky-monitoring projects stare at one location or continually jump from location to location, tiling the sky? If tiling is preferred, what cadence maximizes the discovery rate?
Nemiroff, Robert J.
core   +3 more sources

Transient Hemianopsia [PDF]

The American Journal of the Medical Sciences, 1898
n ...
openaire   +2 more sources

An Exploration into the Fault Diagnosis of Analog Circuits Using Enhanced Golden Eagle Optimized 1D-Convolutional Neural Network (CNN) with a Time-Frequency Domain Input and Attention Mechanism

Sensors
With the continuous operation of analog circuits, the component degradation problem gradually comes to the forefront, which may lead to problems, such as circuit performance degradation, system stability reductions, and signal quality degradation, which ...
Jiyuan Gao, Jiang Guo, Fang Yuan, Tongqiang Yi, Fangqing Zhang, Yongjie Shi, Zhaoyang Li, Yiming Ke, Yang Meng   +8 more
doaj   +1 more source

Frequency Limits on Naked-Eye Optical Transients Lasting from Minutes to Years

, 2009
How often do bright optical transients occur on the sky but go unreported? To constrain the bright end of the astronomical transient function, a systematic search for transients that become bright enough to be noticed by the unaided eye was conducted ...
Bloom, Brosch, Castro-Cern, Cwiok, Goldman, Hughes, Kunkel, Lior Shamir, McNaught, Moreno, Nemiroff, Nemiroff, Nemiroff, Nemiroff, Nemiroff, Nemiroff, Nemiroff, Nemiroff, Nemiroff, Ofek, Pereira, Perryman, Pickering, Robert J. Nemiroff, Sako, Schaefer, Schaefer, Shafter, Shamir, Shamir, Shaw, Smette, Varady, Vestrand   +33 more
core   +2 more sources