Results 11 to 20 of about 724,876 (319)

Low-Frequency Oscillations and Force Control Capabilities as a Function of Force Level in Older Women

open access: yesApplied Sciences, 2022
Force variability is potentially related to altered low-frequency oscillations in motor outputs. This study examines the contributions of low-frequency oscillations in force to altered force control performances from lower to higher targeted force levels
Nyeonju Kang
doaj   +1 more source

Fluidic force and wake velocity of 3D body with four limbs in uniform flow

open access: yesJournal of Fluid Science and Technology, 2023
Robots that operate at a disaster site have been proposed and the dispatch of rescue robots to such site is required. However, discussion on the transport of these robots is insufficient.
Shunsuke YAMADA, Teppei TSUJITA
doaj   +1 more source

Self-force approach to synchrotron radiation [PDF]

open access: yes, 2000
We analyze radiation reaction for synchrotron radiation by computing, via a multipole expansion, the near field and derive from it the Lorentz four-force, which we evaluate on the world-line of the charge.
Burko, Lior M.
core   +2 more sources

Four-quadrant force control with minimal ripple for linear switched reluctance machines

open access: yesCES Transactions on Electrical Machines and Systems, 2020
Linear switch reluctance machine (LSRM) has been tried to act as an alternative generator for direct drive linear wave energy converter (WEC). Many researchers have proposed new topologies of LSRM to improve the power density, efficiency and reliability.
Xuanrui Huang, Zechuan Lin, Xi Xiao
doaj   +1 more source

Inflation in a self-interacting gas universe [PDF]

open access: yes, 1998
We show that a de Sitter spacetime is a solution of Einstein's field equations with the energy momentum tensor of a self-interacting, classical Maxwell-Boltzmann gas in collisional equilibrium.
Balakin, Alexander B., Zimdahl, Winfried
core   +2 more sources

Beyond Four Forces: The Evolution of Psychotherapy [PDF]

open access: yesSage Open, 2019
One framework for studying the evolution or development of personality theory and psychotherapy is the concept of forces—theoretical models, paradigms, dimensions, movements, or worldviews—that have made significant contributions to and shaped the field.
Colette Fleuridas, Drew Krafcik
openaire   +2 more sources

Bioinspired Rigid–Flexible Coupled Adaptive Compliant Motion Control of Robot Gecko for Space Stations

open access: yesBiomimetics, 2023
This paper presents a study on bioinspired rigid-flexible coupling adaptive compliant motion control of a robot gecko with hybrid actuation for space stations.
Xiangli Pei   +4 more
doaj   +1 more source

Covariant Uniform Acceleration [PDF]

open access: yes, 2013
We show that standard Relativistic Dynamics Equation F=dp/d\tau is only partially covariant. To achieve full Lorentz covariance, we replace the four-force F by a rank 2 antisymmetric tensor acting on the four-velocity.
Barut A   +20 more
core   +1 more source

Feasibility of novel four degrees of freedom capacitive force sensor for skin interface force

open access: yesBioMedical Engineering OnLine, 2012
Background The objective of our study was to develop a novel capacitive force sensor that enables simultaneous measurements of yaw torque around the pressure axis and normal force and shear forces at a single point for the purpose of elucidating pressure
Murakami Chisato   +2 more
doaj   +1 more source

A Lower-Back Exoskeleton With a Four-Bar Linkage Structure for Providing Extensor Moment and Lumbar Traction Force

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2022
Lower back pain and related injuries are prevalent and serious problems in various industries, and high compression force to the lumbosacral (L5/S1) region has been known as one of the key factors.
Chaerim Moon   +3 more
doaj   +1 more source

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