نتایج جستجو برای: physical characteristics
تعداد نتایج: 1272429 فیلتر نتایج به سال:
in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...
چکیده تمام نما مقدمه: این تحقیق برای بررسی میزان خلاقیت و عناصر آن (انعطاف- سیالی- ابتکار و بسط) در کارشناسان فوق برنامه های تربیت بدنی دانشگاههای تهران صورت گرفته است. بطور کلی خلاقیت به معنای توانایی تولید اندیشه ها و ایده های جدید و ترکیب آنها با یکدیگر و بیشتر در جنبه های فکری نظری و به اصطلاح فعالیتهای ذهنی و طراحی قبل از عمل به کار می رود و دارای چهار عنصر به شرح زیر می باشد. 1- سیالی...
this research was conducted in two protect and destroy region in the middle zagros, in illam province. in order to identification of ecological species group and evaluate density of regeneration, effect of many factors such as protection, vegetation, physiographic factors, physical and chemical properties of soil in study locations were studied. to achieve these purpose number of 54 plots using...
abstract pomegranate (punica granatum l.) is an important iranian-native fruit, and many of its varieties are cultivated. this research was conducted to evaluate some of the major physical and chemical properties of six pomegranate cultivars at ripening stage in a completely randomized design with 4 replications. the investigated traits were fruit fresh weight, fruit volume, peel thickness, pee...
to investigate the characteristics of skin and leather of hairy goats according to their sex and age, 120 goat skins were selected from the western part of iran. results indicated that sex and age had significant effects on weight and area of skin and leather. moreover, sex and age had significant effects on thickness in different parts of skin except the belly. in this regard, the overall mean...
the aim of this research was to study organizational commitment based on personal characteristics of physical education teachers in mashhad. the statistical population of this study was all the physical education teachers in mashhad (n=1200) which based on morgan table, the size of statistical sample was calculated as 291 teachers. for gathering data, organizational commitment questionnaire, th...
abstract background: for treatment verification in radiation therapy. several physical characteristics of scanningliquid filled ionization chamber epid (slic-epid) including: extra build-up layer,reproducibility and uniformity, and noise level were investigated.electronic portal imaging devices (epids) have found an outstanding positionmaterials and methods: equilibrium, 1-30 mm white water mat...
As the name suggests, wireless systems operate by transmission through space rather than through wired connection. There are two major problems to be addressed in a wireless setting that do not arise in the wired case. The first is that the channel over which communication takes place is time varying. The second being interference between multiple users using a common communication medium. Ther...
چکیده ندارد.
pomegranate is an important iranian-native fruit, with many varieties cultivated. although the volume of data on the importance of pomegranates in human nutrition has increased tremendously in the last years, the physical properties of the pomegranate fruit during fruit maturity have not yet been studied in detail. thus, the present study aimed to evaluate changes in physical characteristics of...
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