Results 21 to 30 of about 127,652 (265)

Investigation into rolling contact fatigue and wear of high-speed train wheels on long steep slope track

open access: yes机车电传动, 2023
A rolling contact fatigue prediction model and a wear prediction model were established to analyze the influence of slope and speed on the rolling contact fatigue and wear of electric multiple unit (EMU) wheels on long steep slope track.
ZHOU Chen   +5 more
doaj  

Study on Influence of Roller Profile Modification on Wear of Tapered Roller Bearing

open access: yesLubricants
Addressing the scientific problem that the profile modification design of tapered roller bearings primarily focuses on contact stress and fatigue life while neglecting its impact on wear evolution, this paper, based on Hertzian contact theory and the ...
Zhaoxia Luo   +6 more
doaj   +1 more source

Fretting Wear Simulation of Press-fit Axles Using an Energy Based Wear Model [PDF]

open access: yes한국정밀공학회지
Railway axles are among critical components ensuring safe and efficient train operations. They are particularly susceptible to damage mechanisms such as fretting wear and fatigue.
Dong Hyung Lee   +2 more
doaj   +1 more source

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada   +6 more
wiley   +1 more source

Calculation of the influence of various compaction on the wear resistance of asphalt concrete using material loss calculation approach

open access: yesMagazine of Civil Engineering
Rutting is the most common and most dangerous defect of asphalt pavements. One of the problems of northern countries such as the Russian Federation is abrasive rut due to studded tire loading.
Baimukhametov Gadel   +2 more
doaj   +1 more source

Research on Prediction of Metro Wheel Wear Based on Integrated Data-Model-Driven Approach

open access: yesIEEE Access, 2019
Existing research on wheel wear prediction uses either data-driven or model-based methods. However, due to the high reliability and limited sample characteristics of metro wheel wear, data-driven methods are not accurate enough and require relatively ...
Aihua Zhu   +6 more
doaj   +1 more source

Effect of Structural Flexibility of Wheelset/Track on Rail Wear

open access: yesLubricants, 2023
To investigate the influence of the structural deformation of the wheelset and track on rail wear in the longitudinal and lateral directions, a rail wear prediction model is established that can calculate the three-dimensional distribution of rail wear ...
Bingguang Wen   +4 more
doaj   +1 more source

Wear-mechanism modelling [PDF]

open access: yes, 1993
Goals of the program are to calculate the surface temperatures in dry sliding, develop a soft wear tester for ceramics, survey the wear mechanisms in brittle solids, and couple the temperature calculations with models to give wear maps for brittle solids. (DLC)
Ashby   +1 more
openaire   +2 more sources

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Evaluation of Adhesive Wear Mechanism for Application in Hybrid Tool Wear Model in Hot Forging Process [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
In hot forging process, tool life is an important factor which influences the economy of production. Wear mechanisms in these processes are dependent on each other, so modeling of them is a difficult problem.
M. Wilkus   +3 more
doaj   +1 more source

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