نتایج جستجو برای: the mean radiant temperature

تعداد نتایج: 16151692  

2002
STEVEN A. SADER

Analysis of Thermal Infrared Multispectral Scanner data collected over H. J. Andrews experimental forest in western Oregon indicated that aspect and slope gradient had a greater effect on the thermal emission of younger reforested clearcuts than of older stands. Older forest stands ( > 25 years) with greater amounts of green biomass and dosed canopies had lower effective radiant temperatures th...

پایان نامه :دانشگاه آزاد اسلامی واحد کرمانشاه - پژوهشکده زبان و گویش 1393

abstract the purpose of this study is twofold: on the one hand, it is intended to see what kind of noticing-the –gap activity (teacher generated vs. learner generated) is more efficient in teaching l2 grammar in classroom language learning. on the other hand, it is an attempt to determine which approach of the noticing-the-gap- activity is more effective in the long- term retention of grammar...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه الزهراء - دانشکده علوم اجتماعی و اقتصادی 1390

بررسی تطبیقی بازده حاصل از کاربرد تحلیل های تکنیکال و روش خرید و نگهداری در بورس اوراق بهادار تهران چکیده در این پژوهش بازدهی حاصل از روش های تجزیه و تحلیل تکنیکی و روش خرید و نگهداری در فرض قابل پیش بینی بودن قیمت ها و عدم وجود شکل ضعیف فرضیه بازار کارا که توسط فاما در سال 791 مطرح گردیده است ، فعالیت میکند . در این مطالعه چهار روش از پر کاربردترین و معتبر ترین روش های تحلیل تکنیکی مورد بر...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1391

in this project, 4,4?-methylenebis(3-chloro-2,6-diethyl trimellitimidobenzene) as a diacid, was prepared by the reaction of trimellitic anhydride (tma) with 4,4?-methylenebis(3-chloro-2,6-diethylaniline) (mcdea). the novel poly(amide-imide) (pai) was synthesized from the reaction of 4,4?-methylenebis(3-chloro-2,6-diethyl trimellitimidobenzene) as a diacid with mcdea under green condition using ...

1999
C. O. R. Negrão C. O. Carvalho

In the present work, human thermal comfort is investigated within the built environment. The analysis is based on two building thermal simulation models. In the first one Nodal Network – the air condition (such as, air temperature and velocity) within each thermal zone is assumed uniform and therefore, all zone occupants are exposed to the same condition. In the second model – Nodal NetworkCFD ...

Journal: :British journal of anaesthesia 1995
H Anttonen K Puhakka J Niskanen P Ryhänen

We have measured non-evaporative, cutaneous heat loss using heat flux transducers at eight skin sites in five children during anaesthesia and compared the data with basal metabolic heat production. The effect of disposable surgical covering and a radiant heater on heat flux was examined. The mean total heat flow rate before draping was 3-9 W higher than the basal metabolic rate after induction ...

Journal: :Cancer research 1983
H I Robins J Grossman T E Davis J P AuBuchon W Dennis

After review of the published clinical experience with systemic hypothermia, we concluded that a simple system which controls radiant heat balance to supplement metabolic heat might provide several advantages, including: (a) decreased morbidity; (b) elimination of the requirement for general anesthesia; (c) improved patient comfort; (d) favorable cost-benefit considerations. We have tested a pr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1390

any change in the refractive index of a laser active medium can lead to serious degradation of beam quality, laser beam modes, laser performance and variation in the intensity distribution. alteration in the refractive index of laser active medium is especially notable in high power lasers. it is clear that in the laser beam production, the pumping agent induces a great amount of heat which...

Journal: :Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene) 1958

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