نتایج جستجو برای: strain relation

تعداد نتایج: 509136  

Journal: :archives of cardiovascular imaging 0
fariba bayat cardiovascular research center, shahid beheshti university of medical sciences, tehran, ir iran; cardiovascular research center, shahid beheshti university of medical sciences, tehran, ir iran mehdi nazmdeh cardiovascular research center, shahid beheshti university of medical sciences, tehran, ir iran morteza safi cardiovascular research center, shahid beheshti university of medical sciences, tehran, ir iran amirsaeed karimi islamic azad university, medical branch, tehran, ir iran latif gachkar infectious diseases and tropical medicine research center ,shahid beheshti university of medical sciences, tehran, ir iran

conclusions pci was accompanied by some improvement in left atrial deformation indices as assessed by tissue doppler imaging. revascularization can, therefore, improve patient outcome. results regarding changes in left trial functional parameters after pci, those such as the strain of the septal wall and the anterior and inferior walls and the strain rate of the anterior and lateral walls signi...

2016
Heidi Janssens Lutgart Braeckman Bart De Clercq Annalisa Casini Dirk De Bacquer France Kittel Els Clays

BACKGROUND In this longitudinal study the complex interplay between both job strain and bullying in relation to sickness absence was investigated. Following the "work environment hypothesis", which establishes several work characteristics as antecedents of bullying, we assumed that job strain, conceptualized by the Job-Demand-Control model, has an indirect relation with long-term sickness absen...

2001
Tetsushi Kanda Zhong Lin Victor. C. Li

This study proposes a new comprehensive theoretical approach for predicting tensile stress-strain relation of Random Short Fiber Reinforced Cement Composites (RSFRCC) showing Pseudo Strain Hardening (PSH). This approach is grounded on solid basis of micromechanics, which describes PSH phenomenon in terms of constitutive properties of fiber, matrix, and fiber/matrix interface. The proposed model...

Journal: :Microbial Cell Factories 2005
Bärbel Hahn-Hägerdal Kaisa Karhumaa Christer U Larsson Marie Gorwa-Grauslund Johann Görgens Willem H van Zyl

The composition of cultivation media in relation to strain development for industrial application is reviewed. Heterologous protein production and pentose utilization by Saccharomyces cerevisiae are used to illustrate the influence of media composition at different stages of strain construction and strain development. The effects of complex, defined and industrial media are compared. Auxotrophi...

2011
Barbara O. Calcagno Tim Osswald Wendy Crone B. Calcagno

The viscoplastic behavior of high density polyethylene, polypropylene, and polycarbonate under uniaxial tensile loading at constant strain rate and large strains was studied. Standard ASTM samples of the polymers cast by injection molding were tested at room temperature and constant crosshead speed; testing was conducted in the range of 5 to 300 mm/min. A single constitutive relation which capt...

Journal: :archives of cardiovascular imaging 0
mohammad sahebjam tehran heart center, cardiology department, tehran university of medical sciences, tehran, ir iran; tehran heart center, north kargar street, tehran, ir iran. tel: +98-2188029257, fax: +98-2188029256 asghar mazareei tehran heart center, cardiology department, tehran university of medical sciences, tehran, ir iran masoumeh lotfi-tokaldany tehran heart center, cardiology department, tehran university of medical sciences, tehran, ir iran neda ghaffari tehran heart center, cardiology department, tehran university of medical sciences, tehran, ir iran arezoo zoroufian tehran heart center, cardiology department, tehran university of medical sciences, tehran, ir iran mahmood sheikhfatollahi tehran heart center, cardiology department, tehran university of medical sciences, tehran, ir iran

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده عمران و محیط زیست 1385

سدها از دیرباز نقشی مهم در پیشرفت و آبادانی جوامع بشری داشته اند و جزء سرمایه های ملی هر کشور محسوب می گردند. طراحی سد به دلیل نوع سازه و نحوه عملکرد حاوی مسائل متعدد و پیچیده ای است. یکی از مهمترین مسائل شرایط ساختگاه محل احداث سد می باشد. زیرا نیروهای بزرگی که در بدنه سد ایجاد می شود به پی و تکیه-گاهها انتقال می یابد. از همین رو ارزیابی پایداری تکیه گاهها با تمام پیچیدگی های موجود در توده سنگ...

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