Results 31 to 40 of about 646,826 (245)
Applied Sciences, 2017 The supercritical carbon dioxide (SC-CO2) jet offers many advantages over water jets in the field of oil and gas exploration and development. To take better advantage of the SC-CO2 jet, effects of nozzle configuration on rock erosion characteristics were
Man Huang +6 more
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UV curable hyperbranched polyester polyurethane acrylate for hydraulic machinery coating
, 2021 The content of river cement and sand in our country is relatively high, and the surface of hydraulic machinery in hydropower stations is often subject to fatigue damage and erosion. This topic is mainly used to solve the problem of abrasion and corrosion
Meng Yuan +7 more
semanticscholar +1 more source
INMATEH Agricultural Engineering, 2022 Given the need to reduce greenhouse gas emissions, new energy-efficient solutions can be adopted for construction and agricultural machinery. Such a solution is a digital hydraulic cylinder that uses several active areas and a constant pressure supply ...
R. Rădoi +4 more
semanticscholar +1 more source
EPJ Web of Conferences, 2014 The most common method for simulating cavitating flows is using the governing flow equations in a form with a variable density and treats both phases as incompressible in combination with a transport equation for the vapour volume fraction. This approach
Deimel Christian +2 more
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Micromachines, 2018 We demonstrated two types of GaN-based flip-chip light-emitting diodes (FCLEDs) with distributed Bragg reflector (DBR) and without DBR to investigate the effect of dielectric TiO2/SiO2 DBR on optical and electrical characteristics of FCLEDs.
Shengjun Zhou +6 more
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Energies, 2022 Hydraulic power-take-off (PTO) systems which utilize high-pressure oil circuits to transmit energy are widely applied in wave energy generation. The properties of hydraulic oil are significantly influenced by environmental conditions, and its dynamic ...
Yubo Niu +5 more
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Fracture Initiation of an Inhomogeneous Shale Rock under a Pressurized Supercritical CO2 Jet
Applied Sciences, 2017 Due to the advantages of good fracture performance and the application of carbon capture and storage (CCS), supercritical carbon dioxide (SC-CO2) is considered a promising alternative for hydraulic fracturing.
Yi Hu +6 more
doaj +1 more source
Sustainability, 2021 Leakage of hydraulic oils causes long-term damage to the environment. Every year, a significant amount of hydraulic oil is released into the environment through accidents and leakages.
Sebastian Deuster, K. Schmitz
semanticscholar +1 more source
EPJ Web of Conferences, 2014 This paper reports the outcome of a numerical study of ultrasonic cavitation using a CFD flow algorithm based on a compressible density-based finite volume method with a low-Machnumber consistent flux function and an explicit time integration [15; 18] in
Mottyll Stephan +5 more
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Nanoscale Assembly of Copper Bearing-Sleeve via Cold-Welding: A Molecular Dynamics Study
Nanomaterials, 2018 A bearing is an important component in contemporary machinery and equipment, whose main function is to support the mechanical rotator, reduce the friction coefficient during its movement, and guarantee the turning accuracy.
Hongjian Zhou +5 more
doaj +1 more source