نتایج جستجو برای: energy content
تعداد نتایج: 1058595 فیلتر نتایج به سال:
هدف:بررسی فاکتورهای دخیل در میزان انرژی مصرفی در بیماران یاگ لیزر شده در مرکز درمانی شهید دکتر حکیم اهواز از تاریخ مرداد ماه 1376 لغایت خردادماه 1387 بیان مسیله :توسعه روز افزون کاربرد لیزر در چشم پزشکی باعث شد تا انواع لیزر اختراع گردد.از جمله این لیزرها یاگ لیزر می باشد که بعضی اعمال جراحی مثل ایریدوتومی و کپسولوتومی خلفی از جمله این اعمال است.بر این اساس هدف از انجام این مطالعه بررسی فاکتور...
The application of solar energy for drying cereals and other agricultural commodities has been increasing lately. This is due to the fact that solar energy is free, renewable, inexhaustible and environmentally friendly. This research is a new approach for employing solar energy as the main energy source for drying purposes. The drying test rig was designed, fabricated and evaluated. The grain s...
the debate whether esp teachers need to have knowledge of the specialized field they are teaching has been an issue in the literature over the last two decades. the aim of conducting this study was to explore iranian learners’ and instructors’ beliefs and attitudes concerning the role of specialized knowledge in teaching esp classes. a seventeen item questionnaire was administered to 400 esp le...
BACKGROUND The nutritional content of donated expressed breast milk (DEBM) is variable. Using DEBM to provide for the energy requirements of neonates is challenging. OBJECTIVE The authors hypothesized that a system of DEBM energy content categorization and distribution would improve energy intake from DEBM. METHODS We compared infants' actual cumulative energy intake with projected energy i...
on this project we try to calculated power of hydrogen on dycarbonil compound in different ways ; the first way is shoster way , for sain power of hydrogen notice the different power between central conforms on it and main conform that’s didn’t have hydrogen joint . or in other way different of energy between open and close form. second way, is average way? this is for way that studied conf...
the purpose of this study is the utilization of furfural residue for heating energy and activated carbon production. to evaluate the energy production of the residue, bulk density, melting point, and heating value were measured. furthermore, moisture, ash, volatile compounds, fixed carbon, lignin, and elements were determined. ash and volatile content average were measured at 15.4% and 68.9%, r...
در این تحقیق اثر الکترونگاتیوی برای استخلاف های f, cl, no2 , cf3 برروی آروماتیسیته مولکول بنزن مورد مطالعه قرار گرفته است. nics, ase, homa, homo-lumo energy gapsشاخص هایی هستند که برای نمایش تاثیر استخلاف ها به کار برده می¬شوند.علاوه بر این الکترون های انتقالی توسط پیوند سیگما وپای نیز برای همه مولکول های استخلاف شده مورد نظر محاسبه شده¬اند.نتایج بدست آمده برای این روش ها با یکدیگر متفاوت است.ب...
background & aim: energy is one of important debates in agriculture ecology and for this reason; the ratio of output and input energy in different agriculture ecosystems has been calculated. if one can reduce, input energy level into farms through the indices like poisons, fertilization, tractor energy and lab our force. in addition to the net income of the farmers, this issue would play a ...
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