نتایج جستجو برای: evolution contraction system
تعداد نتایج: 2556194 فیلتر نتایج به سال:
A B S X R A C T Unpoisoned sartorius muscles of Rana temporaria were stimulated tetanically in isometric contractions lasting up to 20 s at 0~ The observed enthalpy (heat + work) production and the chemical changes in these contractions were measured, and a comparison was made between the observed enthalpy and the enthalpy that could be explained by the chemical changes. Like earlier workers, w...
When a liquid drop impacts a solid surface, air is generally entrapped underneath. Using ultrafast x-ray phase-contrast imaging, we directly visualized the profile of an entrapped air film and its evolution into a bubble during drop impact. We identified a complicated evolution process that consists of three stages: inertial retraction of the air film, contraction of the top air surface into a ...
Unpoisoned sartorius muscles of Rana temporaria were stimulated tetanically in isometric contractions lasting up to 20 s at 0 degrees C. The observed enthalpy (heat + work) production and the chemical changes in these contractions were measured, and a comparison was made between the observed enthalpy and the enthalpy that could be explained by the chemical changes. Like earlier workers, we foun...
muscle fatigue assessment has been the basis of numerous studies, specifically, in neuromuscular rehabilitation and the applications of fessystems. various emgbased techniques, in time and frequency domains, have been investigatedover years for the detection and evaluationof this phenomenon. the main objective of this study has beento evaluate the efficiency of applying a number of techniques w...
In this work, a mathematical model was developed to relate the mechanochemical characterizations of molecular motors with the macroscopic manifestation of muscle contraction. Non-equilibrium statistical mechanics were used to study the collective behavior of myosin molecular motors in terms of the complex conformation change and multiple chemical states in one working cycle. The stochastic evol...
We prove a contraction in L1 property for the solutions of a nonlinear reaction– diffusion system whose special cases include a system related to intracellular transport as well as reversible chemical reactions. We then consider the special case of the linear molecular motor problem and prove the existence and uniqueness of the stationary solution up to a multiplicative constant, extending to a...
A dynamical system is called contractive if any two solutions approach one another at an exponential rate. More precisely, the dynamics contracts lines This property implies highly ordered asymptotic behavior including entrainment to time-varying periodic vector fields and, in particular, global stability for time-invariant fields. Contraction theory has found numerous applications systems and ...
In this paper we present the demonstration of an intelligent game system capable of selecting the players who exhibit the most outstanding behavior from groups of people playing on a network. The system uses both static and dynamic features extracted from the upper part of the players’ bodies such as symmetry, contraction index, motion index or height. Those features are extracted using the RGB...
Introduction: Foot pronation can lead to different lower limb injuries. The purpose of this study was to investigate the effect of long-term training on sand on ankle joint co-contraction in individuals with pronated feet during walking. Methods: The present study was a randomised controlled clinical trial type. Statistical samples of the present study included 15 males with excessive pronated...
Background and purpose: the administrative system of each country is important because of its direct relationship with different groups of people. The purpose of this paper is studying the status of the administrative system evolution in Mazandaran university of medical science with emphasizing on root factors. Materials and methods: In this research, three aspects, organizational structure, jo...
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