نتایج جستجو برای: biomechanical and mechanical measurements since 1998 whereas control sub

تعداد نتایج: 17133419  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده ادبیات و زبانهای خارجی 1388

the present study was an attempt to conduct a contrastive analysis between general english (ge) and english for specific purposes (esp) texts in terms of cohesion and cohesive devices. to this end, thirty texts from different esp and ge textbooks were randomly selected. then they were analyzed manually to find the frequency of cohesive devices. cohesive devices include reference, substitution, ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده ادبیات و علوم انسانی 1386

the purpose of the present study is to find out whether bilinguals of khuzestan-arab origin or monolinguals of iranian origin code-switch during learning or speaking english and which group is more susceptible to code-switch. to this end, the students of 24 classes from high schools and pre- university centers were screened out, and interviewed and their voices and code-switchings were recorded...

1996
Perry Y. Li Roberto Horowitz

| This is Part 1 of a two part paper on the design of intelligent controllers for a class of exercise machines. The control objective is to cause the user to exercise in a manner which optimizes a criterion related to the user's mechanical power. The optimal exercise strategy is determined by a biomechanical behavior of the individual user, which is assumed to satisfy an aane force-velocity rel...

Journal: :iranian journal of basic medical sciences 0
asgar emamgholi neuroscience research center, baqiyatallah university of medical science, tehran, iran microbial biotechnology, faculty of science, payame noor university, unit of tehran center, tehran, iran mohsen rahimi department of parasitology and mycology, school of medicine, baqiyatallah university of medical science, tehran, iran gholamreza kaka neuroscience research center, baqiyatallah university of medical science, tehran, iran seyed homayoon sadraie department of anatomy, school of medicine, baqiyatallah university of medical science, tehran, iran saleh najafi microbial biotechnology, faculty of science, payame noor university, unit of tehran center, tehran, iran

objective(s):various methods for repairing bone defects are presented. cell therapy is one of these methods. bone marrow stromal cells (bmscs) seem to be suitable for this purpose. on the other hand, lots of biomaterials are used to improve and repair the defect in the body, so in this study we tried to produce a similar structure to the bone by the chitosan and hydroxyapatite. materials and me...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده برق و کامپیوتر 1391

in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...

Journal: :The Journal of nutrition 2009
Kathleen M Pye Andrew P Wakefield Harold M Aukema James D House Malcolm R Ogborn Hope A Weiler

Long-term consumption of high-protein (HP) diets at 35% of energy is postulated to negatively influence bone health. Previous studies have not comprehensively examined the biochemical, physical, and biomechanical properties of bone required to arrive at this conclusion. Our objective in this study was to examine the long-term effect of a HP diet on bone metabolism, mass, and strength in rats. A...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زنجان - دانشکده علوم انسانی و اجتماعی 1392

most specialists in the field of foreign language teachingconsiderreading skill as an interactive process between the reader’s prior knowledge and the text.accordingly, the activation of prior knowledge for an effective comprehension is very important. it is generally agreed that the pre-reading phase is the stage where this type of interaction and activation may be enhanced throughcertain stra...

Journal: :فیض 0
میثم یثربی meysam yasrebi department of biomechanics, islamic azad university, sciences & research branchتهران، میدان پونک، بلوار میرزا بابایی، بلوار عدل، خ گلزار یکم، دانشکده مهندسی پزشکی، دانشگاه آزاد اسلامی، واحد علوم تحقیقات علی استکی ali esteki علی اکبر شرفی ali akbar sharafi گیتی ترکمان giti torkaman آزاده شادمهر azade shadmehr

background: in this experimental study, the radiographic and biomechanical characteristics of osteoperforated rabbit tibia during bone repair period were investigated. materials and methods: using dental drills, 2 mm holes were drilled at the mid-shaft of right tibia in 12 new zealand white rabbits. the left tibia was intact and selected as the control. x-rays of the left and right tibias were ...

2013
Mariola Pawlaczyk Monika Lelonkiewicz Michał Wieczorowski

The skin fulfills one of its most important functions, that is protection from mechanical injuries, due to the mechanism of reversible deformation of the structure. Human skin is a complex living material but in biomechanical tests it reveals its homogeneous nature. Biomechanical skin parameters change with time. Results of thickness measurements, where the skin was subjected to pressure, revea...

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