نتایج جستجو برای: pressure effect

تعداد نتایج: 1978429  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد 1388

there is less published research about how teachers in efl contexts respond to students who are relatively less mature and less competent l2 writers. while writing researchers have examined various issues concerning peer and teacher response in writing-oriented classes, little research has centered on the effect of collaborative tasks particularly dictogloss on writing skills. output collaborat...

Journal: :emergency journal 0
majid shojaee anita sabzghabaei hossein alimohammadi hojjat derakhshanfar afshin amini bahareh esmailzadeh

introduction: finding the probable governing pattern of peep and cvp changes is an area of interest for in-charge physicians and researchers. therefore, the present study was designed with the aim of evaluating the relationship between the mentioned pressures. methods: in this quasi-experimental study, patients under mechanical ventilation were evaluated with the aim of assessing the effect of ...

Journal: :مدیریت آب و آبیاری 0
سونیا زبردست دانش آموخته کارشناسی ارشد، گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان، دانشگاه تهران علی رحیمی خوب دانشیار گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان، دانشگاه تهران

according to the irrigation systems design standards, allowed pressure variation in lateral pipes is 20 percent. reasons for this rate selection, which since the 60's is performed, are not known. the increased changes in allowed pressure tubes to lateral pipes design, the increased sprinkling system required pressure and the increased nonuniform sprinkler distribution, so energy supply cos...

Journal: :iranian journal of diabetes and obesity 0
faezeh poursoleiman msc student, department of nutrition, faculty of health, shahid sadoughi university of medical sciences, yazd, iran hassan mozaffari-khosravi department of nutrition, faculty of health, yazd diabetes research center, shahid sadoughi university of medical sciences, yazd, iran javad zavar reza department of clinical biochemistry, faculty of health, shahid sadoughi university of medical sciences, yazd, iran ali dehghani department of biostatistics and epidemiology, faculty of health, shahid sadoughi university of medical sciences, yazd, iran

objective: type 2 diabetes mellitus (dm-2) is a chronic and progressive metabolic disorder known as a serious threatening condition in the individual and society. type 2 diabetes mellitus is known as the major cause of cardiovascular diseases (cvd). contradictory evidences about the effect of omega-3 fatty acids on cvd risk factors, particularly hypertension. the aim of this study was to determ...

Journal: :علوم و تکنولوژی پلیمر 0
مهدی سلامی کلجاهی وحید حدادی اصل محمد نجفی

in the present work, a titanium-based ziegler-natta catalyst was employed to synthesize ultra molecular weight polyethylene in a slurry medium. the effect of different parameters such as ethylene pressure, temperature, catalyst composition, and hydrogen pressure was studied. as the results indicate, increasing either [al]/[ti] ratio or temperature causes polymerization rate to go through a maxi...

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