Results 21 to 30 of about 422,318 (308)

Numerical simulation and experimental study of thrust air bearings with multiple orifices [PDF]

, 2013
http://dx.doi.org/10.1016/j.ijmecsci.2013.03.006The objective of this paper is to provide a numerical simulation and an experimental study in order to assess stiffness and damping characteristics of thrust air bearings with multiple orifices.
A. Ambari, AMBARI, Abdelhak, K. Diop, CHARKI, Abdérafi, S. Champmartin, CHAMPMARTIN, Stephane, A. Charki, DIOP, Khadim   +7 more
core   +1 more source

Research Progress on Performance Optimization of Arc-Sprayed Coatings [PDF]

Cailiao Baohu
With the rapid development of aerospace，marine engineering，energy equipment and advanced machinery manufacturing，components are increasingly serving under extreme conditions such as high temperature，severe corrosion and intense wear，placing higher ...
LIU Shihao, ZHANG Xin, ZHOU Zhidan, JIA Dan, DU Sanming, ZHANG Yongzhen
doaj   +1 more source

Fabrication and electrical characteristics of flash-sintered SiO2-doped ZnO-Bi2O3-MnO2 varistors

Journal of Advanced Ceramics, 2020
The dense ZnO-Bi2O3-MnO2-xSiO2 (ZBMS) varistors for x = 0, 1, 2, 3 wt% were fabricated by flash sintering method under the low temperature of 850 °C within 2 min. The sample temperature was estimated by a black body radiation model in the flash sintering
Pai Peng, Yujun Deng, Jingpeng Niu, Liyi Shi, Yunzhu Mei, Sanming Du, Juan Liu, Dong Xu   +7 more
doaj   +1 more source

A Lightweight Method for Detecting Bearing Surface Defects Based on Deep Learning and Ontological Reasoning

IEEE Access
Bearing as a critical component of machinery and equipment, its state of health directly affects the operating efficiency and security of the equipment. Therefore, the quality control of bearings must be very strict.
Xiaolin Shi, Haisong Xu, Han Zhang, Yi Li, Xinshuo Li, Fan Yang   +5 more
doaj   +1 more source

Characteristic of Sector Tilting Pad Thrust Bearing with Surface Support

Journal of Harbin University of Science and Technology, 2020
In surface center supported thrust bearing as the research object, get the main lubrication parameters of surface supported thrust bearing by finite element analysis.
LI Yonghai, GUO Xiaodong, SUN Xiangzhi, WANG Lei, ZHAO Hongbo, Gong Yuping, WU Dingchao   +6 more
doaj   +1 more source

The effects of surface defects on the fatigue of water and oil lubricated contacts [PDF]

, 2000
A study into effects of surface defects on the rolling contact fatigue of brass and rail steel has been undertaken on a twin-disc rolling-sliding test machine with both oil and water lubrication.
Gao, N., Dwyer-Joyce, R. S.
core   +1 more source

Surface Inspection of a Journal Bearing Using Machine Vision [PDF]

한국정밀공학회지, 2017
This paper presents a machine vision-based surface inspection system for journal bearings. Traditionally, human operator inspection classifies the defective and defect-free bearings.
Jin Seok Ko, Jae Yeol Rheem
doaj   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

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

Journal 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, Eladio Jiménez Mejías, Jesús Moreta, Manuel Sumillera García, Alberto Albert Ullibarri, Jorge Albareda Albareda   +5 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source