Results 111 to 120 of about 2,598,073 (297)
Experimental Technique for Dynamic Fragmentation of Liquid-Driving Expanding Ring
EPJ Web of Conferences, 2018 Expanding ring experiment is an important method for dynamic fragmentation of solid under 1D tensile loading. Based on the split Hokinson pressure bar (SHPB), a liquid-driving experimental technology was developed for conducting expanding ring tests. The
Zhang Jia +3 more
doaj +1 more source
, 1981 An intake valve arrangement for positively controlling the opening and closing of the poppet valve in a hot gas cylinder in a hydrazine powered engine is described. The poppet valve is operated by the piston and gas pressure only. The poppet valve uses a
Akkerman, J. W.
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Deep Underground Science and Engineering, EarlyView.Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang +6 more
wiley +1 more source
Small High-Speed Self-Acting Shaft Seals for Liquid Rocket Engines [PDF]
Design analysis, fabrication, and experimental evaluation were performed on three self-acting facetype LOX seal designs and one circumferential-type helium deal design.
Boynton, J. L., Burcham, R. E.
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The vortex liquid piston engine and some other vortex technologies
Sadhana, 1997 By exploiting three unique characteristics of confined swirling incompressible flows — centrifugal acceleration, internal separation or recirculation zones near the axis, andbistability (i.e. rarefied and condensed stable states) of multi-phase flows — we developed several innovativevortex machines which will revolutionize mechanical technologies in a ...
Goldshtik, M., Hussain, F., Yao, R. J.
openaire +2 more sources
Deep Underground Science and Engineering, EarlyView.An experimental device for physical simulation of hydraulic fracturing, comprising: a load‐bearing mechanism with multiple interconnected plates that collectively form an sample chamber; a load‐generating mechanisms, with multiple load‐generating mechanisms arranged within the experimental chamber.
Delei Shang +5 more
wiley +1 more source
Gong-kuang zidonghuaTo address the problems of existing hydraulic intensifiers used in underground coal mines—such as large size, inability to achieve pressure boosting while drilling, and the need for auxiliary driving devices—a passive hydraulic intensifier for while ...
TIAN Hongjie
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Review of gas-liquid reactor designs and approaches to efficiency assessment [PDF]
E3S Web of ConferencesThe paper provides a brief overview of the reaction devices used in the chemical industry and indicates the main difficulties and limitations that arise in the design and modernization of industrial gas-liquid reactors. It is noted that it is possible to
Ponikarov Artem, Salin Alexey
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Semitoroidal diaphragm cavitating valve Patent [PDF]
, 1970 Semitoroidal diaphragm cavitating flow control ...
Young, A. L.
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EcoEnergy, EarlyView.Despite its potential, photocatalysis is limited by inefficient charge carrier separation and transport. This article reviews the mechanisms, characterization methods, and strategies for improvement, concluding with future challenges in the field. ABSTRACT Photocatalysis offers a promising solution to environmental and renewable energy issues. However,
Leqi Cheng +5 more
wiley +1 more source