نتایج جستجو برای: total pressure

تعداد نتایج: 1167141  

This paper criticizes the model and the new definition for osmotic pressure given by Parsafar et al. [J. Sci. I. R. Iran, Vol. 10, No. 4, 233 (1999)]. The model is a closed system containing 1 kg of solvent plus m mole of solute at constant temperature and under pressure P0 + ? where P0 is the standard pressure and ? is the osmotic pressure of the corresponding m molal solution. While the total...

Journal: :international journal of occupational hygiene 0
parvin nassiri occ. hyg. dep, school of public health, tehran university of medical sciences, tehran, iran. ali mohammad abbasi ilam university of medical sciences, ilam, iran.

the aim of the present study was to assess the industrial noise pollution and its effects on the blood pressure of workers during activities intextile factory in ilam,which is situated in west of iran. a cross-sectional study was performed on a group included 81 workers and 30 people as sample and control group, respectively. a questionnaire was filled out and then the other measurements includ...

Journal: :دامپزشکی 0
صیفعلی ورمقانی دانشجوی دکتری تغذیه دام، گروه علوم دامی، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران شعبان رحیمی استاد گروه پرورش و تولید طیور، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران محمد امیر کریمی ترشیزی استادیار گروه پرورش و تولید طیور، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران هوشنگ لطف الهیان استادیار موسسه تحقیقات علوم دامی کشور، کرج محمد حسن زاده استاد گروه علوم درمانگاهی، دانشکده دامپزشکی، دانشگاه تهران، تهران

this study was carried out to indicate the effects of olive leaves on arterial blood pressure, blood lipids and growth performance in broiler chickens. experiment was conducted with 5 treatments and 4 replicates with 25 birds per each replicate in a completely randomized design with over all 500 male arian strain 1-day old broilers. the period of study was 42 d. treatments were control, drug of...

Mohamad Hojaji Saeed Toolani,

Designing and manufacturing the multiple jets simulator and experimental investigation of the multiple jets in crossflow at low velocity ratios have been studied Together with design and build a low-speed wind tunnel. A specific rake is used to determine the flow field pressure and changes in static pressure measured by pressure taps in the near field of the jets. There are generally three regi...

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