Results 31 to 40 of about 74,787 (316)

Numerical investigation of internal flow characteristics in an azimuth waterjet propulsion at different ship speeds

open access: yesApplied Ocean Research
Azimuth waterjet propulsion is a special kind of waterjet propulsion, which is installed flush with the bottom of hull and 360 deg steerable. It is widely used in ships to broaden navigation range, enhance adaptability in shallow water area and improve ...
Peng Yan   +6 more
doaj   +1 more source

THE ASSESSMENT OF PROPERTIES FOR SELECTED FACTORS IN ABRASIVE WATER JET PROCESS

open access: yesActa Metallurgica Slovaca, 2015
The article presents the current conditions of abrasive water jet cutting process and factors relative to the quality of cutting surface. The main goal of research was to evaluate the assessment of the cutting depth, corrugated bottom cutting edge and ...
Anna Sunova   +3 more
doaj   +1 more source

Experimental investigation of two-phase flow evolution in a high-speed submerged water jet with air ventilation

open access: yesJournal of Fluid Science and Technology, 2023
In order to improve the submerged cutting performance of water abrasive suspension jet an experimental investigation on the two-phase flow structure of submerged water jet with semi-coaxial air ventilation is conducted by the method of high-speed camera ...
Guoyi PENG   +4 more
doaj   +1 more source

Influence of External Jet on Hydraulic Performance and Flow Field Characteristics of Water Jet Propulsion Pump Device

open access: yesShock and Vibration, 2021
Water jet propulsion technology has broad application prospects in the field of ships, and water jet technology is a kind of high and new technology that is booming and has a wide range of applications.
Jinxin Wu, Li Cheng, Can Luo, Chuan Wang
doaj   +1 more source

Cavitating Jet: A Review

open access: yesApplied Sciences, 2020
When a high-speed water jet is injected into water through a nozzle, cavitation is generated in the nozzle and/or shear layer around the jet. A jet with cavitation is called a “cavitating jet”.
Hitoshi Soyama
doaj   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

open access: yesFEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard   +12 more
wiley   +1 more source

Multi-factors model of pores geometries interplayingly affecting spontaneous imbibition in reservoir rock

open access: yesMeitan kexue jishu
China is short of natural gas resources, and these low-permeable reservoirs (such as tight gas, shale gas and coalbed methane) being difficultly developed account for a large proportion. How to efficiently developed this part of strategic resources is of
Chuanlong DONG   +2 more
doaj   +1 more source

Associations of Sleep and Shift Work With Osteoarthritis Risk

open access: yesArthritis Care &Research, EarlyView.
Objective Daily rhythms may be critical for maintaining homeostasis of joint tissues. We aimed to investigate the relationships among circadian clock disruption, sleep, and osteoarthritis (OA) risk in humans. Methods In the UK Biobank, a prospective 500,000–person cohort, we evaluated associations among sleep duration, sleeplessness/insomnia, and shift
Elizabeth L. Yanik   +5 more
wiley   +1 more source

Jet mixing of water in crude oil pipelines [PDF]

open access: yes, 1990
The jet mixing of water in crude oil pipelines by single nozzle and multi-nozzle mixers was studied by dividing the mixing domain into to three regions. the penetration. near field and farfield regions.
Fernando, L. M.
core  

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

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