Results 41 to 50 of about 16,165 (285)

Torsional Resonance Identification in Turbine-Generator Shaft Due to the Operation of Electric Arc Furnaces at Steel Mills in Bangladesh Power System

IEEE Access, 2023
Many steel mills in Bangladesh use electric arc furnaces (EAFs) that can impact the generating units of the country’s power system. The EAFs can cause power quality problems, such as the injection of the sub-synchronous frequencies (SSFs), which ...
Md. Minarul Islam, Abdul Hasib Chowdhury, Md. Shafiullah, Kashem M. Muttaqi, Danny Sutanto, Taha Selim Ustun   +5 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

Oligothiophene wires: impact of torsional conformation on the electronic structure

Physical Chemistry Chemical Physics, 2016
Different torsional conformations of alkyl-substituted oligothiophenes show nearly identical progressions of particle-in-a-box-like electronic orbitals.
D A, Kislitsyn, B N, Taber, C F, Gervasi, L, Zhang, S C B, Mannsfeld, J S, Prell, A L, Briseno, G V, Nazin   +7 more
openaire   +3 more sources

Neurovascular Contacts in the Pathophysiology of Neuralgic Amyotrophy: An Observational Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuralgic amyotrophy (NA) is a prevalent, monophasic, multifocal immune‐mediated neuropathy. A distinctive characteristic of the disease is the occurrence of nerve or fascicle constrictions and torsions (NA‐associated focal nerve lesions, NAFL). The pathophysiology underlying this phenomenon remains to be fully elucidated.
Johannes Fabian Holle, Andreas Leha, Volker Limmroth, Wolfram Windisch, Maximilian Zimmermann   +4 more
wiley   +1 more source

The effect of high-frequency torsional impacts on the dynamic response of a drill string in a stick state

Advances in Mechanical Engineering, 2019
Stick–slip vibration is common in the oil well drilling process and is detrimental to down-hole equipment and drilling efficiency. In recent years, a new type of drilling technology, torsional impact drilling, has been developed to mitigate the stick ...
Liping Tang, Wei He, Xiaohua Zhu
doaj   +1 more source

On the torsional energy of torus knots under infinitesimal bending

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2023
The article deals with the infinitesimal bending theory application to the knots theory. The impact of infinitesimal bending on the torsional energy at torus knots is considered, and the results show that it is not stationary under infinitesimal bending.
Maksimović Miroslav D., Rančić Svetozar R., Najdanović Marija S., Velimirović Ljubica S., Ljajko Eugen S.   +4 more
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Impact Of Electrical Noise On The Torsional Response Of VFD Compressor Trains [PDF]

, 2012
LectureThe popularity of VFD motors in compressor trains has increased in recent years. Increased process flexibility is a primary consideration for implementation of VFD systems.
Kocur, John A., Muench, Maximilian G.
core   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Transient torsional vibration analysis of marine diesel engine under short-circuit impact

Zhongguo Jianchuan Yanjiu
ObjectivesIn order to formulate an optimization scheme for the torsional vibration parameters of a marine diesel generator shaft system, it is necessary to analyze the transient torsional vibration characteristics of the diesel generator under short ...
Congcong XU, Gang LIANG, Jie TAO, Yafei JIAO, Jinyuan CHEN, Pengcheng WANG, Mengcan DENG   +6 more
doaj   +1 more source