Results 31 to 40 of about 8,549,022 (352)

Contribution of Stretch-Induced Force Enhancement to Increased Performance in Maximal Voluntary and Submaximal Artificially Activated Stretch-Shortening Muscle Action

open access: yesFrontiers in Physiology, 2020
In everyday muscle action or exercises, a stretch-shortening cycle (SSC) is performed under different levels of intensity. Thereby, compared to a pure shortening contraction, the shortening phase in a SSC shows increased force, work, and power.
Martin Groeber   +3 more
doaj   +1 more source

A statistical damage constitutive rock model based on elastic energy release rate

open access: yesShuiwen dizhi gongcheng dizhi, 2021
In order to truly reveal the mechanism of rock deformation and failure and the nature of rock material damage, based on the analysis of rock material deformation law and mechanical characteristics, a rock damage constitutive model based on elastic energy
Wenbo LIU   +3 more
doaj   +1 more source

Elastic model for dinucleosome structure and energy [PDF]

open access: yesPhysical Review E, 2016
The equilibrium structure of a Dinucleosome is studied using an elastic model that takes into account the force and torque balance conditions. Using the proper boundary conditions, it is found that the conformational energy of the problem does not depend on the length of the linker DNA.
Fatemi, Hashem   +2 more
openaire   +3 more sources

Convergence of equilibria of thin elastic plates under physical growth conditions for the energy density [PDF]

open access: yes, 2012
The asymptotic behaviour of the equilibrium configurations of a thin elastic plate is studied, as the thickness of the plate goes to zero. More precisely, it is shown that critical points of the nonlinear elastic functional converge to critical points of
Scardia, Lucia   +7 more
core   +1 more source

Low-energy elastic electron scattering from helium atoms [PDF]

open access: yes, 2021
We reinvestigate a key process in electron-atom collision physics, the elastic scattering of electrons from helium atoms. Specifically, results from a special-purpose relativistic polarized-orbital method, which is designed to treat elastic scattering ...
Bartschat, K   +2 more
core   +1 more source

Estimating the effective bending rigidity of multi-layer graphene

open access: yesMaterials Research Express, 2021
We present a novel analytical prediction for the effective bending rigidity γ _eff of multi–layer graphene sheets. Our approach involves using a variational model to determine the folding conformation of multi–layer graphene sheets where the curvature of
Jabr Aljedani   +2 more
doaj   +1 more source

Combined Aerobic and Resistance Training Increases Stretch- Shortening Cycle Potentiation and Walking Economy in Postmenopausal Women

open access: yesFrontiers in Physiology, 2019
PurposeSecondary analyses were performed to test whether combined aerobic and resistance training altered walking economy (i.e., net oxygen uptake) and/or stretch-shortening cycle potentiation (SSCP).
Harshvardhan Singh   +6 more
doaj   +1 more source

Negative Energy Elasticity in a Rubberlike Gel [PDF]

open access: yesPhysical Review X, 2021
Rubber elasticity is the archetype of the entropic force emerging from the second law of thermodynamics; numerous experimental and theoretical studies on natural and synthetic rubbers have shown that the elasticity originates mostly from entropy change with deformation.
Yuki Yoshikawa   +3 more
openaire   +3 more sources

Intrinsically Elastic Robots: the Key to Human Like Performance [PDF]

open access: yes, 2012
Intrinsically elastic robots, which technically implement some key characteristics of the human muskoskeletal system, have become a major research topic in nowadays robotics. These novel devices open up entirely new control approaches.
Friedl, Werner   +21 more
core   +1 more source

Exploiting Elastic Energy Storage for Cyclic Manipulation: Modeling, Stability, and Observations for Dribbling [PDF]

open access: yes, 2011
For creating robots that are capable of human like performance in terms of speed, energetic properties, and robustness, intrinsic compliance is a promising design element. In this paper we investigate the effects of elastic energy storage and release
Albu-Schäffer, Alin Olimpiu   +5 more
core   +1 more source

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