نتایج جستجو برای: stretching and folding
تعداد نتایج: 16834543 فیلتر نتایج به سال:
We investigate in this paper the problem of model collisions in the Dissimilarity Self Organizing Map (SOM). This extension of the SOM to dissimilarity data suffers from constraints imposed on the model representation, that lead to some strong map folding: several units share a common prototype. We propose in this paper an efficient way to address this problem via a branch and bound approach.
in order to investigate deformation history preserved in the calcite twins in the hinterland of zagros, several samples have been collected from calcschists of the paleozoic sargaz complex in the faryab area, se iran. these samples are related to f1-recumbent folding and thrust shear zones. the twin width is about 1 and 3.8 µm (thin-twin regime); the twin strain amounts 5 and 10%; twin intensit...
it is shown that when a special vertex stretching is applied to a graph, the cochordal cover number of the graph increases exactly by one, as it happens to its induced matching number and (castelnuovo-mumford) regularity. as a consequence, it is shown that the induced matching number and cochordal cover number of a special vertex stretching of a graph g are equal provided g is well-covered bipa...
Background and purpose: There is no specific treatment for fibromyalgia. Previous studies suggest that exercise is helpful in controlling the symptoms and psychosocial aspects of the disease. Stretching exercises are emphasized less than aerobic and resistance exercises in these patients. The main reason for re-examining this issue in current study was the contradictory feedback of patients wi...
Abstract We establish the mixing property for a family of Lebesgue measure preserving toral maps composed two piecewise linear shears, first which is non-monotonic. The serve as basic model ‘stretching and folding’ action in laminar fluid mixing, particular flows where boundary conditions give rise to non-monotonic flow profiles. can be viewed parameter space between well-known systems, Arnold’...
Introduction: Multiple sclerosis disease is the result of delimitation of central nervous system which ‎can harm fatigue is among the most common symptom of Multiple Sclerosis. Although exercise is ‎administered to Multiple Sclerosis patients, comparison type of exercise on the fatigue level has not ‎been established.‎ Objective: This research has been conducted to evaluate t...
Stretching and bending normal vibrations of AB2(C2v), AB3(D3h), AB4(D4h), and AB5(D3h) molecules are described by correlating the vibrational displacement vectors of the attached atoms with the standard representations of s, p and d atomic orbitals of the central atom in ABn(n=2-5) molecules. It is found that stretching and bending normal vibrations of simple molecules accord with probability...
The prevalence of sports injuries in martial arts is high. Most Taekwondo injuries also occur in the lower extremities. The aim of this study is to compare the effect of a period of plyometric exercises, with and without stretching exercises, on knee valgus dynamics, flexibility and functional variables of elite female taekwondo athletes at risk of anterior cruciate ligament injuries. 45 elite...
To study the way of folding handmade carpets, the selected sample has been put under pressure of 50g/cm2 weight at three different states. The pressure has increased uniformly and continuously at 100,200, 500, 1000 and 1500 g/cm2. The thickness of the carpet has been recorded continuously during the measurement of the thickness of the carpet sample. The pressing parameters of the carpet have be...
Plyometric training is widely used to improve force production, power and jumping ability through specific muscle action called the stretch shortening cycle (SSC). The SSC involves a powerful concentric contraction preceded by rapid eccentric contraction. The efficacy of the SSC is mainly related to the storage of elastic energy during eccentric contraction and its quick release during concentr...
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