نتایج جستجو برای: effective thermal layer

تعداد نتایج: 1144178  

2015
I. Gouttevin

I. Gouttevin, M. Lehning, T. Jonas, D. Gustafsson, and M. Mölder IRSTEA, Unité de Recherche Hydrologie-Hydraulique, 5 rue de la Doua, CS 70077, 69626 Villeurbanne CEDEX, France CRYOS, School of Architecture, Civil and Environmental Engineering, EPFL, Lausanne, Switzerland WSL Institute for Snow and Avalanche Research SLF, Flüelastrasse 11, 7260 Davos Dorf, Switzerland KTH, Department of Land an...

2007
Hajime Susa Hideya Uehara Ryoichi Nishi Masako Yamada H. Susa H. Uehara R. Nishi M. Yamada

We re-examine the thermal evolution of the postshock layer in primordial gas clouds. Comparing the time scales, we nd that the evolutionary paths of postshock regions in primordial gas clouds are basically understood by the diagram drawn on ionization degree v.s. temperature plane. The results obtained from the diagram are independent of the density, in case we do not include photodissociation ...

Journal: :international journal of nano dimension 0
z. rahmani department of chemistry, takestan branch, islamic azad university , takestan ,iran. sh. ghammamy department of chemistry, faculty of science, imam khomeini international university, qazvin, iran. m. pourheravy department of chemistry, faculty of science, payam noor university, abhar, iran.

synthesis, identification and thermal behavior studies of nanoparticles cobalt (ii) bromide has been studied in this research. cobalt (ii) bromide was synthesized by planetary high-energy ball mill. the general formula of this compound is cobr2.6h2o. the synthesized nanoparticles were characterized by fourier transform infrared spectroscopy and also size and structure of synthesized nanoparticl...

Journal: :journal of crop protection 0
mehrnoosh jafari department of bio-system mechanic engineering, faculty of agriculture, tarbiat modares university, tehran, iran. saeid minaei department of bio-system mechanic engineering, faculty of agriculture, tarbiat modares university, tehran, iran. naser safaie department of plant pathology, faculty of agriculture, tarbiat modares university, tehran, iran. farah torkamani-azar department of electrical engineering, college of electrical and computer engineering, shahid beheshti university, tehran, iran. mehdi sadeghi department of horticultural sciences, faculty of agriculture, tarbiat modares university, tehran, iran.

many environmental and physiological factors affect plant temperature. the objective of this study was to use thermal imagery to investigate robust features for early diagnosis of botrytis cinerea infection in cut rose flowers under the postharvest application of methyl jasmonate (meja). three cases treated with different concentrations of meja (0.1, 0.2, and 0.3 µl.l−1), a control (0 µl.l−1 me...

Journal: :Physical review. B, Condensed matter 1995
González de la Cruz G Gurevich

In this paper thermal conductivity and thermal diffusivity of a two layer system is examined from the theoretical point of view. We use the one dimensional heat diffusion equation with the appropriate solution in each layer and boundary conditions at the interfaces to calculate the heat transport in this bounded system. We also consider the heat flux at the surface of the samle as boundary cond...

Journal: :Journal of Vacuum Science & Technology A 2021

2011
Øyvind Thomassen Hilde Færevik Øyvind Østerås Geir Arne Sunde Erik Zakariassen Mariann Sandsund Jon Kenneth Heltne Guttorm Brattebø

BACKGROUND Accidental hypothermia increases mortality and morbidity in trauma patients. Various methods for insulating and wrapping hypothermic patients are used worldwide. The aim of this study was to compare the thermal insulating effects and comfort of bubble wrap, ambulance blankets / quilts, and Hibler's method, a low-cost method combining a plastic outer layer with an insulating layer. ...

Journal: :international journal of advanced design and manufacturing technology 0
nasim nayebpashaee iran university of science & technology h. n. vafaeenezhad s. m. m. hadavi s. m. m. hadavi s. h. seyedein m. r. aboutalebi

an attempt was made to investigate the thermal and residual stress distribution in a novel three layer (la 2 zr 2 o 7 / 8ysz/ nicraly) during a real-like heating regime which includes heating, service time and final cooling. for achieving maximum accuracy and consistency in calculation of thermal and mechanical properties of hybrid coating system, all related andrequired properties were introdu...

Journal: :Entropy 2017
Mohammad Mehdi Rashidi Munawwar Ali Abbas

This article describes the impact of slip conditions on nanofluid flow through a stretching sheet. Nanofluids are very helpful to enhance the convective heat transfer in a boundary layer flow. Prandtl number also play a major role in controlling the thermal and momentum boundary layers. For this purpose, we have considered a model for effective Prandtl number which is borrowed by means of exper...

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