نتایج جستجو برای: stretching and folding

تعداد نتایج: 16834543  

2016
Gaeun Heo Kyoung-hee Pyo Da Hee Lee Youngmin Kim Jong-Woong Kim

This paper presents the successful fabrication of a transparent electrode comprising a sandwich structure of silicone/Ag nanowires (AgNWs)/silicone equipped with Diels-Alder (DA) adducts as crosslinkers to realise highly stable stretchability. Because of the reversible DA reaction, the crosslinked silicone successfully bonds with the silicone overcoat, which should completely seal the electrode...

Journal: :journal of family and reproductive health 0
farideh vaziri department of midwifery, school of nursing and midwifery, shiraz university of medical sciences, shiraz, iran. azam hoseini department of midwifery, school of nursing and midwifery, shiraz university of medical sciences, shiraz, iran. farahnaz kamali department of midwifery, school of nursing and midwifery, bushehr university of medical sciences, bushehr, iran. khadijeh abdali department of midwifery, school of nursing and midwifery, shiraz university of medical sciences, shiraz, iran. mohamadjavad hadianfard department of physical medicine and rehabilitation, medical school, shiraz university of medical sciences, shiraz, iran. mehrab sayadi health policy research center, shiraz university of medical sciences, shiraz, iran.

objective: to compare the effects of aerobic and stretching exercises on severity of primary dysmenorrhea. materials and methods: this randomized clinical trial was conducted on 105 female students who were suffering from primary dysmenorrhea. the participants were divided into aerobic exercise, stretching exercise, and control groups. the two intervention groups did the exercises three times a...

Journal: :The Journal of chemical physics 2017
Yani Zhao Mateusz Chwastyk Marek Cieplak

We consider multi-chain protein native structures and propose a criterion that determines whether two chains in the system are entangled or not. The criterion is based on the behavior observed by pulling at both termini of each chain simultaneously in the two chains. We have identified about 900 entangled systems in the Protein Data Bank and provided a more detailed analysis for several of them...

Journal: :Journal of sports science & medicine 2011
Del P Wong Anis Chaouachi Patrick W C Lau David G Behm

This study aimed to compare the effect of different static stretching durations followed by dynamic stretching on repeated sprint ability (RSA) and change of direction (COD). Twenty-five participants performed the RSA and COD tests in a randomized order. After a 5 min aerobic warm up, participants performed one of the three static stretching protocols of 30 s, 60 s or 90 s total duration (3 str...

Journal: :علوم زیستی ورزشی 0
مرتضی سنگدوینی کارشناس ارشد فیزیولوژی ورزشی دانشگاه گلستان بهمن میرزایی دانشیار دانشگاه گیلان علی مصطفی لو کارشناس ارشد آسیب شناسی ورزشی دانشگاه آزاد اسلامی واحد مینودشت احسان سعیدی کارشناس ارشد فیزیولوژی ورزشی

the purpose of the present study was to investigate whether duration of static stretching could affect the maximal voluntary contraction (mvc) and flexibility of hamstring muscles. 10 male physical education students randomly performed three warm-up protocols on different days. the protocols included: a) five minutes of treadmill run and 45 seconds (3×15 seconds) of static stretching of hamstri...

2014
Maryam mareidini Eidini

Developing complex spatial objects from a fl at sheet of material using origami folding techniques has long attractedattention in science and engineering. Recent research has shown that in origami-based deployable folded sheetmaterials, such as Miura-ori, metamaterial properties of the patterns are basically because of their folding geom-etry [1, 2]. In this study, we employ tai...

Background: For decades, static stretching has been the standard benchmark for training programs, because it has been shown to increase flexibility compared with other methods of stretching. Objective: The current study investigated and compared the effects of active dynamic stretching and passive static stretching on hamstring tightness. Me...

Journal: :Earth surface dynamics 2022

Abstract. Proper knowledge of velocity is required in accurately determining the enormous destructive energy carried by a landslide. We present first, simple and physics-based general analytical landslide model that simultaneously incorporates internal deformation (nonlinear advection) externally applied forces, consisting net driving force viscous resistant. From physical point view, represent...

ژورنال: گلجام 2014
زمانی, شادی, مجابی, سید علی,

One of the most common procedures for exporting and warehousing handmade carpets is keeping them folded over one another. Handmade carpets come out of their stable states by being folded,while increasing storage time can cause serious and sometimes irreversible changes to them. In this research, a pilot model carpet has kept folded under a load equal to 50 g/cm2 and then the applied load increa...

Journal: :Biophysical journal 2005
Fei Liu Zhong-Can Ou-Yang

Using polymer elastic theory and known RNA free energies, we construct a Monte Carlo algorithm to simulate the single RNA folding and unfolding by mechanical force on the secondary structure level. For the constant force ensemble, we simulate the force-extension curves of the P5ab, P5abc deltaA, and P5abc molecules in equilibrium. For the constant extension ensemble, we focus on the mechanical ...

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