Results 11 to 20 of about 58,032 (218)

Identifying the processes and characterizing the pressure zone of water jet impacting on solid surface

open access: yesAdvances in Mechanical Engineering, 2022
The difficulty in understanding the flow characteristics of water jets impacting on solid surfaces made the water jet technology requiring further investigations. The Arbitrary Lagrange-Euler (ALE) method is used to develop a numerical model of the water
Jianguo Zhang   +3 more
doaj   +1 more source

Experimental study on jet flow characteristics of fire water monitor

open access: yesThe Journal of Engineering, 2018
Fire water monitor is an important part of a sprinkler system. In this study, the jet flow characteristics of the external jet of the fire water monitor are studied. The water jet system is used to launch the water jet experiment under six pressures.
Xiumei Liu   +3 more
doaj   +1 more source

Characterization of the Flow Field of a Submerged Jet Based on Large Eddy Simulation [PDF]

open access: yesJournal of Applied Fluid Mechanics
Submerged water jets are widely used in underground engineering for coal breaking. This study aims to clarify the flow field characteristics and momentum transfer mechanism of submerged jets.
H. Zhang, F. Wang, C. Duan
doaj   +1 more source

Experimental study on optimization of process parameters of ultra-high pressure abrasive water jet

open access: yesMeikuang Anquan, 2023
In order to improve the cutting efficiency of abrasive water jet, the cutting effect of limestone with different process parameters was studied through the developed ultra-high pressure abrasive water jet cutting system.
ZHANG Lulu, LI Luyuan, ZHANG Runxu
doaj   +1 more source

Experimental investigation on high-pressure methane jet characteristic single-hole injector

open access: yesHeliyon, 2023
High-pressure gas direct injection (DI) technology benefits engines with high efficiency and clean emissions, and the gas jet process causes crucial effects especially inside an mm-size space.
Yan Lei   +6 more
doaj   +1 more source

Mechanism and Optimization of Rotary Abrasive Waterjet for Well Tubing Cutting: Experimental and SPH-FEM Study

open access: yesJournal of Manufacturing and Materials Processing
Rotary abrasive waterjet (AWJ) cutting is an effective technique for industrial tube cutting and is widely used for oil and gas well tubing. This study presents a self-designed experimental apparatus for investigating the cutting performance of rotary ...
Can Cai   +7 more
doaj   +1 more source

Study on Pressure Oscillation Characteristic of Steam Low-velocity Jet under Seawater Condition

open access: yesYuanzineng kexue jishu
In order to address the research gap in steam-seawater interactions and evaluate the feasibility of using seawater as a coolant in marine nuclear power systems, the pressure oscillation characteristics of steam low-velocity jet in seawater have been ...
Study on Pressure Oscillation Characteristic of Steam Low-velocity Jet under Seawater Condition
doaj   +1 more source

Research on Digital Monitoring Technology for Airport High-Pressure Rotary Jet Piles

open access: yesIEEE Access, 2023
The high-pressure rotary jet pile construction method has been widely used in airport projects, particularly in regions with soft soil foundations, such as coastal areas. The method’s primary aim is to establish a sound foundation bearing capacity.
Ke Tang   +6 more
doaj   +1 more source

Study on the optimal parameter matching model of rotary cutting coal-rock for abrasive water jet

open access: yesMeitan kexue jishu
As coal mining extends deeper, pure water jet technology is gradually unable to meet the demand for coal penetration enhancement under high stress and high coal rock strength conditions.
Jianping WEI   +4 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

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