Results 41 to 50 of about 475,553 (315)

Flow-induced vibration analysis in a pump-turbine runner under transient operating conditions

Engineering Applications of Computational Fluid Mechanics, 2023
The dynamic characteristics of the pumped storage unit (pump-turbine runner) make it highly susceptible to vibrations. Previous studies seldom addressed the clearance variation due to runner vibration, largely because of two challenges: the integration ...
Junxun Guo, Daqing Zhou, Huixiang Chen, Haobo Wang   +3 more
doaj   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

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, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Model and Method of Fault Signal Diagnosis for Blockage and Slippage of Rice Threshing Drum

Agriculture, 2022
Rice threshing drum of combine harvester is difficult to monitor and repair the abnormal state in time. When slippage or blockage occurs in the threshing drum, the working efficiency of the threshing drum will reduce seriously, such as the threshing ...
Shuaihua Hao, Zhong Tang, Songbao Guo, Zhao Ding, Zhan Su   +4 more
doaj   +1 more source

Field Telemetry of Blade-rotor Coupled Torsional Vibration at Matuura Power Station Number 1 Unit [PDF]

, 1991
The quasi-modal reduction technique and finite element model (FEM) were used to construct an analytical model for the blade-rotor coupled torsional vibration of a steam turbine generator of the Matuura Power Station.
Isii, Kuniyoshi, Murakami, Hideaki, Okabe, Akira, Otawara, Yasuhiko   +3 more
core   +1 more source

Pulsating magneto-dipole radiation of a quaking neutron star powered by energy of Alfven seismic vibrations

, 2011
We compute the characteristic parameters of magnetic dipole radiation of a neutron star undergoing torsional seismic vibrations under the action of Lorentz restoring force about axis of a dipolar magnetic field experiencing decay.
Abramowitz, Bastrukov, Irina Molodtsova, Jun-Wei Yu, Kouveliotou, Ledoux, Manchester R. N., Mereghetti, Pacini, Polyanin, Qiao, Ren-Xin Xu, Sergey Bastrukov, Weber, Xu, Xu   +15 more
core   +1 more source

Analysis of variations in diesel engine idle vibration [PDF]

, 2003
The variations in diesel engine idle vibration caused by fuels of different composition and their contributions to the variations in steering wheel vibrations were assessed.
Ajovalasit, M, Giacomin, J
core   +1 more source

Hyperactive ice‐binding proteins stabilize cell membranes and improve resistance to dehydration stress in Caenorhabditis elegans

FEBS Open Bio, EarlyView.
TisIBP8, a fungal‐derived hyperactive ice‐binding protein, helps Caenorhabditis elegans survive dehydration. It localizes near cell membranes, reduces cell damage, and helps maintain membrane structure during drying. These results suggest that ice‐binding proteins can protect cells from dehydration stress as well as freezing stress.
Daiki Shimose, Kotaro Ozaki, Ryohei Kuriyama, Yuka Ikemoto, Kazuhiro Mio, Yuji C. Sasaki, Tatsuya Arai, Sakae Tsuda, Yoichi Shinkai, Masahiro Kuramochi   +9 more
wiley   +1 more source

Vibration Analysis of Two-Stage Helical Gear Transmission with Cracked Fault Based on an Improved Mesh Stiffness Model

Machines, 2022
The crack fault has an important influence on the vibration characteristics of the transmission system. This paper is devoted to analyzing fault mechanism and dynamic characteristics of transmission with gear crack, which provides the basis for crack ...
Yancong Li, Shihua Yuan, Wei Wu, Kun Liu, Chunpeng Lian, Xintao Song   +5 more
doaj   +1 more source

A Prospective Study of Individuals at Risk of Multiple Sclerosis Informs the Design of Primary Prevention Studies

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective In multiple sclerosis, the optimal time for deploying a therapeutic intervention is before the central nervous system is damaged; given the success of trials treating the earliest stage of MS, the radiologically isolated syndrome, developing primary prevention strategies is an important next challenge.
Amy W. Laitinen, Ceren Tozlu, Tina Roostaei, Fatoumata Diallo, Kaho Onomichi, Jiyeon Son, Zongqi Xia, Philip L. De Jager   +7 more
wiley   +1 more source

Evaluation of Static and Dynamic Characteristics of Bump Metal Mesh Foil Bearing

Tribology Online
Gas foil bearings, which are oil-free and exhibit low energy losses, are used in high-speed rotating machinery. Because gas is used as the working fluid, there is a need to improve damping performance using support structures.
Yuki Kuwata, Masayuki Ochiai
doaj   +1 more source