Results 71 to 80 of about 660,505 (314)

Factors affecting the operation of laser-triggered gas switch (LTGS) with multi-electrode spark gap

, 2007
Multi-electrode spark switches can be used for switching applications at elevated voltages or for command triggering. Symmetrical field graded electrodes allow the electrical stress across individual gaps to be controlled, thus maximising the hold off ...
I. V. Timoshkin, S. J. MacGregor, M. J. Given, J. M. Lehr, Warne, L., R. A. Fouracre, MacGregor, S.J., Timoshkin, I., Fouracre, R.A., Lehr, J., Given, M.J., L. K. Warne   +11 more
core   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Mass Flow Rate and Pressure Distribution of Gas through Three-dimensional Micro-Channels

, 2014
An effective method to predict the mass flow rate and pressure distribution of gas through three dimensional micro-channels with different cross-section shapes has been proposed.
Jiang, JZ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China., 樊菁, 蒋建政   +2 more
core   +1 more source

Electric field measurements in atmospheric pressure plasmas [PDF]

, 2017
Low temperature plasmas at atmospheric pressure offers possibilities that were not accessible to plasma-based technologies for a long time, such as usage on materials sensitive to high temperatures, (bio)materials that are not resistant to vacuuming or ...
Sretenović, G., Kovacevic, V.V., Nguyen, Yen Nhi, Hofmans, M., Guaitella, O.Y.N., Krstic, I.B., Sobota, A., Obrusnik, A., Sobota, A.; id_orcid, Garcia-Caurel, E., Slikboer, E.T.   +10 more
core   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

A study of gas lift on oil/water flow in vertical risers [PDF]

, 2014
Gas lift is a means of enhancing oil recovery from hydrocarbon reservoirs. Gas injected at the production riser base reduces the gravity component of the pressure drop and thereby, increases the supply of oil from the reservoir. Also, gas injection at
Brini Ahmed, Salem Kalifa
core  

Spatially resolved ozone densities and gas temperatures in a time modulated RF driven atmospheric pressure plasma jet : an analysis of the production and destruction mechanisms

, 2013
In this work, a time modulated RF driven DBD-like atmospheric pressure plasma jet in Ar + 2%O2, operating at a time averaged power of 6.5 W is investigated.
Hofmann, S., Gaens, W van, Zhang, S., Veldhuizen, van, E.M., Bogaerts, A, Zhang, S Shiqiang, van Gessel, Bram, Bogaerts, Annemie, Zhang, Shiqiang, Veldhuizen, EM Eddie van, Gessel, van, A.F.H., Van Gaens, Wouter, Bruggeman, Peter, Hofmann, Sven, Bruggeman, PJ Peter, Gessel, AFH Bram van, van Veldhuizen, Eddie, Gaens, van, W., Bogaerts, A., Hofmann, S Sven, Bruggeman, P.J.   +20 more
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What Do Large Language Models Know About Materials?

Advanced Engineering Materials, EarlyView.
If large language models (LLMs) are to be used inside the material discovery and engineering process, they must be benchmarked for the accurateness of intrinsic material knowledge. The current work introduces 1) a reasoning process through the processing–structure–property–performance chain and 2) a tool for benchmarking knowledge of LLMs concerning ...
Adrian Ehrenhofer, Thomas Wallmersperger, Gianaurelio Cuniberti   +2 more
wiley   +1 more source

Experimental Analysis of Effective Stress Sensitivity of 3# Coal Seam Permeability in Xinjing Mine

Meikuang Anquan, 2020
The KDZS-II type coal body gas instantaneous desorption and seepage characteristic tester was used to analyze the effective stress sensitivity of 3# coal seam in Xinjing Mine under the gas pressure conditions of 0.31 MPa and 0.61 MPa.
XIE Yuhua, ZHAO Kun, LIU Jianbao, ZHANG Jianfeng, YANG Changyong
doaj   +1 more source

Derivation of forces acting on the liquid weld metal based on arc pressure measurements produced using alternating shielding gases in the GTAW process

, 2013
As part of an ongoing process to fully evaluate the effects of an alternating shielding gas supply on the gas tungsten arc and gas metal arc welding processes, a comparison between arc pressures produced using argon, helium, alternating gases and GTAW-P ...
Campbell, Stuart, Galloway, Alexander, McPherson, Norman   +2 more
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