Results 81 to 90 of about 10,671 (243)
Liquid rocket engine axial-flow turbopumps [PDF]
The axial pump is considered in terms of the total turbopump assembly. Stage hydrodynamic design, pump rotor assembly, pump materials for liquid hydrogen applications, and safety factors as utilized in state of the art pumps are among the topics ...
Farquhar, J. +4 more
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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
Low-thrust chemical propulsion system pump technology [PDF]
Candidate pump and driver systems for low thrust cargo orbit transfer vehicle engines which deliver large space structures to geosynchronous equatorial orbit and beyond are evaluated.
Sabiers, R. L., Siebenhaar, A.
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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
LubricantsThe study investigates the impact of textured surface parameters and pump operating parameters on the friction performance of slipper pairs in axial piston pumps.
Bin Bian +5 more
doaj +1 more source
Development of a Vibration-Based Health Monitoring Procedure using a Virtual Axial Piston Pump [PDF]
, 2015 Monitoring vibration signatures produced by axial piston pumps can provide insight into changes of the pump system, which may then be associated with early signs of mechanical or hydraulic component failures.
Yoder, Valerie
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A Combined Methodology for Studying the Axial Balancing Mechanism of Orbit Annular Hydraulic Machines [PDF]
, 2015 A customized combined methodology, based on both 2D CFD and lumped parameters numerical modeling, useful for simulating the hydraulic behavior of orbit annular machines, has been developed and here presented.
Bigliardi, Elisa +5 more
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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
ELECTROPHORESIS, EarlyView.A validated RP‐HPLC–UV method was successfully applied for amoxicillin determination in gummy tablets. The method is useful for an accurate amoxicillin content determination in paediatric gummies and was applied to study the stability profile of the drug, evaluated over 6 months under storage conditions.
Samuele Bonafè +7 more
wiley +1 more source
Testing Intra-Industry Trade Between Portugal and Spain [1990-1996] [PDF]
This paper shows how, in the period 1990-1996, economic integration between the two Iberian economies has deepened through intra-industry trade. The enquiry was led at the level of the main forty traded products.
Horácio C. Faustino +2 more
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