Results 41 to 50 of about 5,384,913 (273)

Investigation of Water-Repellent Thrust Bearing

open access: yesTribology Online, 2010
In this study, the flat thrust bearing was developed by actively exploiting the slip flow generated on a water-repellent surface. In order to produce a load, bearing has a structure that generates pressure flow by using the discontinuity of the shear ...
Akitoshi Takeuchi
doaj   +1 more source

Defect detection of bearing side face based on sample data augmentation and convolutional neural network

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2023
Bearing surface quality has significant impact on the working performance and durability of the mechanical transmission equipment. The traditional visual detection methods for bearing surface defects face the problems of weak versatility, low efficiency ...
Dan LIANG   +4 more
doaj   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

The effects of material combination and surface roughness in lubricated silicon nitride/steel rolling contact fatigue [PDF]

open access: yes, 2003
Four kinds of commercially finished 12.7 min HIPed silicon nitride bearing balls with surface roughness values R-a ranging from 0.002 to 0.016 mum were tested using a four-ball rolling configuration.
Kang, J   +3 more
core   +1 more source

A Comparison Between Two Bearing Surfaces for Total Hip Arthroplasty—Ceramic-on-Ceramic and Metal–Polycarbonate–Urethane—A Pseudo-Randomized Study

open access: yesJournal of Functional Biomaterials
Background: Polycarbonate–urethane (PCU) is a recently developed bearing surface used in prosthetic hip surgery. It offers several theoretical advantages, including an elasticity modulus similar to that of natural cartilage, good lubrication properties ...
Daniel Donaire Hoyas   +5 more
doaj   +1 more source

Study on the rupture surface morphology and ultimate bearing capacity of a self-anchored test pile

open access: yesScientific Reports, 2022
The expression of the ultimate bearing capacity of the upper uplift pile and the lower compressive pile of a self-anchored test pile was obtained by studying their rupture surface morphology.
Lin Zhu, Hailong Ma
doaj   +1 more source

A context‐dependent modulatory role for eIF6 in acquired resistance to vemurafenib in melanoma

open access: yesFEBS Letters, EarlyView.
Acquired resistance to vemurafenib upregulates the translation factor eIF6 in melanoma cells. Silencing eIF6 in resistant cells reduces proliferation and partially restores drug sensitivity, whereas its overexpression increases sensitivity across melanoma lines regardless of BRAF status, via modulation of mTOR, S6K, and MAPK signaling.
George Kyriakopoulos   +9 more
wiley   +1 more source

The Effect of Lubrication on the Vibration of Roller Bearings

open access: yesMATEC Web of Conferences, 2018
Proper lubrication is crucial to ensure smooth operation in machineries. In rolling bearing, the improper lubrication may induce high friction and vibration level due to metal to metal contact between the rolling elements.
Yusof N.F.M., Ripin Z.M.
doaj   +1 more source

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

Effect of Main Bearing Surface Profile on Crankshaft Lubrication and Vibration Characteristic

open access: yesJixie chuandong, 2022
Taking the main bearing-main journal of a six-cylinder diesel engine as the research object,based on the elastic- -fluid lubrication theory and the micro-bump contact theory and considering factors such as journal misalignment and main bearing surface ...
Guixiang Zhu   +5 more
doaj  

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