Results 91 to 100 of about 2,651,640 (305)
CONTACT NOTCH STRESS ASSESSMENT WITHIN FRICTIONAL CONTACT JOINTS
Dyna, 2012 En el artículo se analizan, por medio del método del elemento finito (FE), las concentraciones de esfuerzo en los límites de zonas de contacto nominales que incluyen deslizamiento con fricción. Los elementos mecánicos para el análisis numérico se consideran como una flecha acoplada a un cubo de rueda por medio de aros cónicos deformables. El proceso de
SZWEDOWICZ, DARIUSZ, BEDOLLA, JORGE
openaire +3 more sources
Effect of load, area of contact, and contact stress on the wear mechanisms of a bonded solid lubricant film [PDF]
A pin on disk type of friction and wear apparatus was used to study the effect of load, contact stress and rider area of contact on the friction and wear properties of polyimide bonded graphite fluoride films.
Fusaro, R. L.
core +1 more source
FEBS Open Bio, EarlyView.Bisphenol A (BPA), a common chemical in plastics, exerts dual effects on bladder cancer cells: low doses promote growth and migration, while high doses suppress growth and migration. Multi‐omics and bioinformatics reveal BPA acts via MAPK and inflammatory pathways.
Shaomin Niu +10 more
wiley +1 more source
Optimal Design of Spur Gears With Increased Contact Ratio
Journal of Mechanical EngineeringThe study is devoted to optimal design of gears with profile contact ratio εα ≥ 2. Optimality criteria formulated as follows: the contact stresses in the pitch point must take a minimum value when all constraints are met, first, when the profile contact ...
Ustynenko Oleksandr +6 more
doaj +1 more source
Contact Characteristics of Active Elbow in High-Pressure Manifold
Shiyou jixie, 2022 In order to investigate the raceway pitting corrosion of the active elbow in high-pressure manifold in oil and gas fields,a large-diameter active elbow of Model 130.2 mm-105 MPa(5 1/8 in-15 000 psi)was taken as an example to investigate the influences of
Zhang Guoyou
doaj
FEBS Open Bio, EarlyView.Chemotherapy side effects significantly impact cancer survivors' quality of life. Using protein levels in blood samples from breast cancer patients before and after 12 weeks of taxane treatment, we detected treatment‐dependent changes in calcium signaling and aging pathways associated with cancer recurrence.
Saira Munshani +6 more
wiley +1 more source
Analysis of Sealing Performance of Special Gas Seal Thread of Downhole Safety Valve
Shiyou jixie, 2022 Downhole safety valve, as a necessary safety device, is widely used in the development of high-sulfur gas fields and offshore oil and gas fields. The thread sealing performance is one of the important elements in the research and development of downhole ...
Wang Chuanhong +5 more
doaj
FEBS Open Bio, EarlyView.Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young +7 more
wiley +1 more source
Contact Analysis and Structural Improvement of the Swivel Joints in High Pressure Manifold
Shiyou jixie, 2018 During the operation of the swivel joint in the oilfield, pitting and obvious indentation of the ball bearing at the joint were observed and affected its operation.
Guo Dengming, Wang Sui, Bian Heman
doaj
Study on Contact Characteristics of Cold Rolled Deformation Zone of Ultra-High-Strength Steel
MetalsThis study investigates the longitudinal deformation behavior of ultra-high-strength steel (UHSS) during the cold rolling process. First, rolling experiments were conducted on UHSS, and longitudinal surface coordinates of the deformation zone were ...
Jianhui Wang +5 more
doaj +1 more source