Results 21 to 30 of about 69,545 (269)

Dynamic Analyses of the Hydro-Turbine Generator Shafting System Considering the Hydraulic Instability

open access: yesEnergies, 2018
Hydraulic instability is a complex factor causing the vibration of hydro-turbine generator shafting system (HGSS), and the mechanism is the uneven distribution of flow along the circumference.
Keyun Zhuang   +4 more
doaj   +1 more source

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

open access: yesEnergies, 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   +6 more
doaj   +1 more source

A Triple-Layer Membrane with Hybrid Evaporation and Radiation for Building Cooling

open access: yesEnergies, 2023
Passive cooling for thermal comfort improvement has received extensive attention for its low energy consumption. However, most of the existing passive cooling technologies require a complex system design and supporting equipment, since they cool the ...
Mingran Mao   +4 more
doaj   +1 more source

Transient Hemianopsia [PDF]

open access: yesThe American Journal of the Medical Sciences, 1898
n ...
openaire   +2 more sources

Programmable droplet manipulation enabled by charged‐surface pattern reconfiguration

open access: yesDroplet, 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   +6 more
doaj   +1 more source

Optical Transients [PDF]

open access: yesInternational 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

open access: yesEntropy, 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   +4 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

open access: yesEcoMat, 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   +7 more
doaj   +1 more source

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

open access: yesГорные 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

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

open access: yesSensors
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   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy