two examples of heat transfer by radiation
An experimental investigation of heat transfer and fluid flow in a rectangular duct with inclined discrete ribs
... Journal of Heat Mass Transfer 2003; 30(2): 241-250. [17] Bhagoria J.L. and Sahu M.M. Augmentation of heat transfer coefficient by using 900 broken transverse ribs on absorber plate of solar air heater, ... Investigation of heat transfer and friction for rib-roughened surfaces, Int. Journal of Heat & Mass Transfer 1978; 21: 1143-1156. [4] Webb R.L., Eckert E.R.G. and Goldstein R. J. Heat transfer ... Journal of Heat and Mass Transfer1 999; 42: 1597-1615. [16] Karwa R, Experimental studies of augmented heat transfer and friction in asymmetrically heated rectangular ducts with ribs on the heated...
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Ptinciples of heat transfer
... Basic Modes of Heat Transfer 21.1 The Relation of Heat Transfer to Thermodynamics 31.2 Dimensions and Units 71.3 Heat Conduction 91.4 Convection 171.5 Radiation 211.6 Combined Heat Transfer ... heat is transferred by convection and radiation in parallel. Hence, the rate of heat flow to the interiorsurface of the wall is the sum of the two heat flows(1.36)where Tg= temperature of the ... A,and thickness of Fig. 2.2 can be stated as follows:rate of heat conduction rate of heat conductioninto control volume out of control volume +=+ (2.1)rate of heat generation rate of energy storage...
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Tài liệu Báo cáo khoa học: Analysis of oxidative events induced by expanded polyglutamine huntingtin exon 1 that are differentially restored by expression of heat shock proteins or treatment with an antioxidant ppt
... presence of 50 m m dithiothreitol.Ten microliters of each sample lysate was transferred intoeach of two eppendorf tubes and treated for 15 min witheither 10 lL of the 1· DNPH solution or 10 lL of ... stimulate some of itsactivities because of better substrate availability is notyet known. The partial restoration of proteasomeactivities by Hsps contrasts with the lack of effectinduced by NAC. ... Hsp27(C137A) mutant is characterized by the sub-stitution of the unique cysteine residue of Hsp27 by analanine residue, and is unable to protect against celldeath induced by different agents, including...
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Báo cáo khoa học: Differential recognition of heat shock elements by members of the heat shock transcription factor family ppt
... protein) of YYY49 and YYT42 con-tained approximately 1 and 2 ng of hHSF2, and those of YYT50 andYYT17 contained approximately 0.01 and 0.1 ng of hHSF4, asjudged by the intensity of each band. ... the folding of damaged proteins, andincreased accumulation of HSPs is essential for sur-vival of cells exposed to protein-damaging stresses,including heat shock. The structure of HSF comprisesa ... generation,Keywordscrystallin; heat shock element; heat shockprotein; heat shock response; heat shocktranscription factorCorrespondenceH. Sakurai, Department of ClinicalLaboratory Science,...
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Báo cáo khoa học: Small heat shock protein Hsp27 prevents heat-induced aggregation of F-actin by forming soluble complexes with denatured actin docx
... effect of Hsp27-3D on the heat- induced aggregation of F-actin. (A) F-actin (1.0 mgặmL)1) washeated at a constant rate of 1 Cặmin)1in the absence (curve 1) orin the presence (curves 2–4) of ... that, upon heating, thermal unfolding of F-actin is accompanied by formation of stable, solu-ble complexes of Hsp27-3D with denatured actin thatcontain roughly equal quantities of denatured ... Institute of Biochemistry, Russian Academy of Sciences, Moscow, Russia2 School of Bioengineering and Bioinformatics, Moscow State University, Russia3 Department of Biochemistry, School of Biology,...
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doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 1 of 3
... There are two types of latent heat. The first is the latent heat of fusion. Thisis the amount of heat added or removed to change phase between solid and liquid. The secondtype of latent heat is ... ENERGY, WORK, AND HEAT Another type of heat is called latent heat. Latent heat is the amount of heat added to or removedfrom a substance to produce a change in phase. When latent heat is added, ... latent heat of vaporization. This is the amount of heat added orremoved to change phase between liquid and vapor. The latent heat of vaporization is sometimescalled the latent heat of condensation.Different...
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doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 2 of 3
... ormolecules of a material through which the heat is being transferred.Convection involves the transfer of heat by the mixing and motion of macroscopic portions of a fluid. Radiation, or radiant heat transfer, ... involves the transfer of heat by electromagnetic radiation that arises due to the temperature of a body. Heat flux is the rate of heat transfer per unit area.Thermal conductivity is a measure of a substance’s ... Transferring Heat Heat is always transferred when a temperature difference exists between two bodies. There arethree basic modes of heat transfer: Conduction involves the transfer of heat by the interactions...
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doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 3 of 3
... is used by engineers in reference to pressure. It is a referenceto the height, typically in feet, of a column of water that a given pressure will support. Each of the energies possessed by a fluid ... all of its kinetic energy were converted to potential energy. Thepressure head represents the flow energy of a column of fluid whose weight is equivalent to thepressure of the fluid.The sum of ... characteristic of viscous (thick) fluid or isone in which viscosity of the fluid plays a significant part.Turbulent FlowTurbulent flow is characterized by the irregular movement of particles of the...
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Báo cáo khoa học: Structure and positioning comparison of two variants of penetratin in two different membrane mimicking systems by NMR pdf
... Structure and position of penetratin (Eur. J. Biochem. 270) 3057 Structure and positioning comparison of two variants of penetratinin two different membrane mimicking systems by NMRMattias Lindberg, ... pH was set to 4.1 by addingsmall amounts of HCl. The samples used in spin-labelexperiments were prepared by adding either small amounts of aqueous MnCl2, or small amounts of 5-doxyl or12-doxyl-labeled ... average size of the head-group region of the bilayer. Onlyeffects that result in a remaining amplitude of <0.4 are shown. Bluecolor indicates the effect of Mn2+ions, light red the effect of 1-palmitoyl-2-stearoyl-sn-glycero-5-doxyl-3-phosphatidylcholine,...
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Báo cáo khoa học: Structural basis of charge transfer complex formation by riboflavin bound to 6,7-dimethyl-8-ribityllumazine synthase docx
... steps of catalysis [9]. The orientation of H94 var ies according to the bound ligand but is nearlyindependent of the nature of residue 27. In the case of the two substrate analogue complexes of ... facilitates theformation of a unique tetrade comprising of a pair of riboflavins with an antiparallel staggering of their isoallox-azine moieties, sandwiched by the indole groups of thesymmetry-related ... consequence of thesmaller size of the phenyl ring of Y 27 as compared to theindole r ing of W27. Clearly further biophysical studies arerequired to substantiate these notions.The crystal structure of...
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Tìm thêm: xác định các mục tiêu của chương trình khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản khảo sát chương trình đào tạo gắn với các giáo trình cụ thể tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam nội dung cụ thể cho từng kĩ năng ở từng cấp độ phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ lồng sóc mở máy động cơ rôto dây quấn các đặc tính của động cơ điện không đồng bộ hệ số công suất cosp fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến dòng điện stato i1 fi p2 động cơ điện không đồng bộ một pha sự cần thiết phải đầu tư xây dựng nhà máy phần 3 giới thiệu nguyên liệu chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25