Results 31 to 40 of about 520,328 (352)

Heat Transfer Characteristics and Prediction Model of Supercritical Carbon Dioxide (SC-CO2) in a Vertical Tube

Energies, 2017
Due to its distinct capability to improve the efficiency of shale gas production, supercritical carbon dioxide (SC-CO2) fracturing has attracted increased attention in recent years. Heat transfer occurs in the transportation and fracture processes.
Can Cai, Xiaochuan Wang, Shaohua Mao, Yong Kang, Yiyuan Lu, Xiangdong Han, Wenchuan Liu   +6 more
doaj   +1 more source

Programmable droplet manipulation enabled by charged‐surface pattern reconfiguration

Droplet, 2023
Programmable droplet manipulation based on external stimulation is in high demand in various modern technologies. Despite notable progress, current manipulation strategies still suffer from a common drawback such as single control means of modulating the
Duokui Fang, Wenhao Zhou, Yuankai Jin, Xiaofeng Liu, Yubin Zeng, Zuankai Wang, Huai Zheng   +6 more
doaj   +1 more source

“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

Size-Dependent Buckling and Post-Buckling Analysis of the Functionally Graded Thin Plate Al–Cu Material Based on a Modified Couple Stress Theory

Nanomaterials, 2022
Size-dependent functionally graded material thin plate buckling and post-buckling problems are considered using the framework of the MCST (Modified Couple Stress Theory).
Feixiang Tang, Fang Dong, Yuzheng Guo, Shaonan Shi, Jize Jiang, Sheng Liu   +5 more
doaj   +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

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

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

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

Calcium-rich Gap Transients: Solving the Calcium Conundrum in the Intracluster Medium [PDF]

, 2014
X-ray measurements suggest the abundance of Calcium in the intracluster medium is higher than can be explained using favored models for core-collapse and Type Ia supernovae alone.
Kasliwal, Mansi M., Kollmeier, Juna A., Mulchaey, John S.   +2 more
core   +2 more sources