Results 51 to 60 of about 3,467 (257)

Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application

Advanced Engineering Materials, EarlyView.
N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang, Mayur Pole, Tingkun Liu, Kenneth A. Ross, Christopher B. Smith   +4 more
wiley   +1 more source

Experimental study and mechanism analysis of high-pressure water jet for mud cake cutting during shield tunneling

Frontiers in Earth Science
When the opening rate of the cutter head of tunnel boring machines is insufficient for the removal of excavated soil in a timely manner, the soil tends to accumulate in front of the cutter head and inside the earth or slurry chamber, leading to mud ...
Fuquan Ji, Pengfei Liu, Pengfei Liu, Zhao Yang, Bowei Wen, Qinxin Hu   +5 more
doaj   +1 more source

Effect of Stand-Off Distance on Impact Pressure of High-Speed Water Jet Injected in Water

, 2011
This study is to measure the impact pressure of high-speed water jet injected in water at the stand-off distance from the nozzle exit. The high-speed water jets are generated by the impact of a projectile, which known as impact acceleration method ...
Wuttichai Sittiwong, Anirut Matthujak, Kulachate Pianthong, Chaidet Kasamnimitporn   +3 more
core   +1 more source

High pressure water jet assisted machining of duplex steel: machinability and tool life [PDF]

, 2010
High pressure water jet assisted turning (HPWJAT) consists of projecting a high pressure water jet, up to several hundred bar, into the tool-workpiece interface.
GERMAIN, Guénaël, P. Robert, AUGER, Stéphane, LEBRUN, Jean-Lou, J. L. Lebrun, T. Braham-Bouchnak, G. Germain, ROBERT, Patrick, BRAHAM-BOUCHNAK, Tarek   +8 more
core   +1 more source

Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes

Advanced Functional Materials, EarlyView.
Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu, Byungcheon Yoo, Seunghun Lee, Hyungyo Jeong, Sanggyun Jeong, Heesu Cho, Jongwon Oh, Dahye Baek, Jongkyu Kim, Yubin Lee, Eunsu Gu, Dong‐Hwan Kim, Jung‐Hoon Park, Jiseok Lee   +13 more
wiley   +1 more source

A Non‐Reciprocal Architected Porous Medium

Advanced Functional Materials, EarlyView.
ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies, Pablo Zavattieri, Nicolás Silin   +2 more
wiley   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

Advanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi, Norma Mallegni, Andrea Dorigato, Mario Milazzo   +3 more
wiley   +1 more source

Numerical Simulation of Energy-mass Transfer in High-pressure Sub-cooled Water Jet Impacting High-temperature Lead-bismuth Molten Pool in Confined Space

Yuanzineng kexue jishu
The steam generator tube rupture (SGTR) accident is one of the most serious design-basis accidents in a lead-bismuth cooled fast reactor (LFR). This results in the injection of high-pressure sub-cooled water from the second loop into the first loop of ...
YUAN Junjie1, , LIU Li1, , BAO Ruiqi1, LUO Haotian1, JIA Zheng1, TIAN Xiaoyan2, LI Da2, GU Hanyang1
doaj   +1 more source

Soot formation in turbulent vaporised kerosine/air jet flames at elevated pressure [PDF]

, 1993
The objective of this thesis is to develop and validate a model of soot formation which is capable of being applied to a computational fluid dynamic (CFD) simulation of gas turbine combustion.
Young, K. J.
core  

Effective Methane Extraction Radius after High-Pressure Water Jet Slotting

, 2020
The effective radius of methane extraction after high-pressure water jet slotting is the most important parameter for borehole optimization and extraction time planning.
Hu Ke, Xia Binwei, Liu Chengwei, Lu Yiyu
core   +1 more source