Results 91 to 100 of about 278,740 (250)

Periodic flow due to oscillations of eccentric rotating porous disks

open access: yesAdvances in Mechanical Engineering, 2015
This article is concerned with the periodic flow induced by non-torsional oscillations of two porous disks rotating about distinct axes. While the porous disks are initially rotating with the same angular velocity about non-coincident axes, they start to
H Volkan Ersoy
doaj   +1 more source

Analysis of the Torsional Stability of Split Phases

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2019
The specificity of overhead power lines is associated with the fact that the length of conductors between the supporting structures can reach tens of thousands of meters. Wires and their components are exposed to climatic factors, viz.
I. I. Sergey   +3 more
doaj   +1 more source

Monitoramento sem fio da vibração torsional de powertrain automotivo [PDF]

open access: yes, 2015
TCC (graduação) - Universidade Federal de Santa Catarina. Campus Joinville. Engenharia Mecatrônica.A instalação de sensores para a medição da vibração torsional em diversos pontos do powertrain se faz necessária em testes veiculares, o que consome tempo ...
Korol, Daniel Rossi
core  

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

open access: yesFlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan   +7 more
wiley   +1 more source

Helioseismic Properties of Dynamo Waves in the Variation of Solar Differential Rotation

open access: yesThe Astrophysical Journal
Solar differential rotation exhibits a prominent feature: its cyclic variations over the solar cycle, referred to as zonal flows or torsional oscillations, are observed throughout the convection zone.
Krishnendu Mandal   +2 more
doaj   +1 more source

Methodological guidelines for the characterization of polysaccharide helical structures

open access: yesFood Biomacromolecules, EarlyView.
Abstract Polysaccharide chain conformation is a critical determinant of their physicochemical and biological properties; however, reliable identification remains a significant challenge due to the inconsistent structural evidence yielded by conventional analytical techniques.
Yixuan Wu   +5 more
wiley   +1 more source

Slow‐Phase Nystagmus Velocity as a Risk Factor for Lateral Canal BPPV Recurrence

open access: yesThe Laryngoscope, EarlyView.
This study investigated slow‐phase nystagmus velocity (SPV) at initial diagnosis as an objective vestibular predictor for the recurrence of lateral semicircular canal benign paroxysmal positional vertigo (BPPV). Binomial logistic regression analysis demonstrated that an elevated initial SPV is a novel, independent risk factor for recurrence ...
Chung Yoh Kim, Woo Jin Kim
wiley   +1 more source

Reactive Power Control Impact on Torsional Oscillations in GFM-DFIGs: Analysis and Mitigation

open access: yesIEEE Open Journal of Power Electronics
Recent studies have highlighted potential torsional stability risks in grid-forming (GFM) controlled wind turbine (WTs). While most research focuses on the active power control channel, the influence of reactive power control (RPC) is rarely concerned ...
Dong Wang   +4 more
doaj   +1 more source

Determine of the wave equation in the task of electrical oscillations

open access: yesMATEC Web of Conferences, 2018
One of the basic equations of mathematical physics (for instance function of two independent variables) is the differential equation with partial derivatives of the second order (3).
Jelić Gordana V.   +2 more
doaj   +1 more source

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