example problem of heat transfer by convection
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...
Ngày tải lên: 05/09/2013, 16:10
molecular dynamics simulation of heat transfer and phase change during
Ngày tải lên: 06/05/2014, 08:55
molecular dynamics simulation of heat transfer and phase change during
Ngày tải lên: 06/05/2014, 08:57
molecular dynamics simulation of heat transfer and phase change during
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Báo cáo sinh học: "Mechanisms of ubiquitin transfer by the anaphase-promoting complex" pdf
Ngày tải lên: 06/08/2014, 19:21
MÔ HìNH HOá QUá TRìNH TRAO ĐổI NHIệT ẩM TRONG MáY ấP TRứNG GIA CầM Modeling of heat and mass transfer in chicken egg incubators
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Effect of periodic suction on three dimensional flow and heat transfer past a vertical porous plate embedded in a porous medium
Ngày tải lên: 05/09/2013, 14:58
Cooling load optimization of an irreversible refrigerator with combined heat transfer
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Ecological performance of a generalized irreversible Carnot heat engine with complex heat transfer law
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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 into each of two eppendorf tubes and treated for 15 min with either 10 lL of the 1· DNPH solution or 10 lL of ... stimulate some of its activities because of better substrate availability is not yet known. The partial restoration of proteasome activities by Hsps contrasts with the lack of effect induced by NAC. ... cell [17,19] by, for example, promoting the clearance of mutant protein by activating autophagy through the inhibition of mTOR [19]. Oxidative events may there- fore represent a problem that...
Ngày tải lên: 19/02/2014, 06:20
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 and YYT17 contained approximately 0.01 and 0.1 ng of hHSF4, as judged by the intensity of each band. ... the folding of damaged proteins, and increased accumulation of HSPs is essential for sur- vival of cells exposed to protein-damaging stresses, including heat shock. The structure of HSF comprises a ... generation, Keywords crystallin; heat shock element; heat shock protein; heat shock response; heat shock transcription factor Correspondence H. Sakurai, Department of Clinical Laboratory Science,...
Ngày tải lên: 07/03/2014, 00:20
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 mgÆmL )1 ) was heated at a constant rate of 1 C°Æmin )1 in the absence (curve 1) or in 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 that contain roughly equal quantities of denatured ... Institute of Biochemistry, Russian Academy of Sciences, Moscow, Russia 2 School of Bioengineering and Bioinformatics, Moscow State University, Russia 3 Department of Biochemistry, School of Biology,...
Ngày tải lên: 16/03/2014, 06:20
doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 1 of 3
... types of latent heat. The first is the latent heat of fusion. This is the amount of heat added or removed to change phase between solid and liquid. The second type of latent heat is the latent heat ... ENERGY, WORK, AND HEAT Another type of heat is called latent heat. Latent heat is the amount of heat added to or removed from a substance to produce a change in phase. When latent heat is added, ... different magnitudes by the addition of heat. When a given amount of heat is added to different substances, their temperatures increase by different amounts. The ratio of the heat (Q) added to or...
Ngày tải lên: 17/03/2014, 15:00
doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 2 of 3
... modes of heat transfer: Conduction involves the transfer of heat by the interactions of atoms or molecules of a material through which the heat is being transferred. Convection involves the transfer ... HT-02 Heat Transfer CONVECTION HEAT TRANSFER Summary The important information in this chapter is summarized below. Convection Heat Transfer Summary • Convection heat transfer is the transfer of ... or molecules 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, ...
Ngày tải lên: 17/03/2014, 15:00
doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 3 of 3
... is used by engineers in reference to pressure. It is a reference to 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. The pressure head represents the flow energy of a column of fluid whose weight is equivalent to the pressure of the fluid. The sum of ... characteristic of viscous (thick) fluid or is one in which viscosity of the fluid plays a significant part. Turbulent Flow Turbulent flow is characterized by the irregular movement of particles of the...
Ngày tải lên: 17/03/2014, 15:00
Báo cáo khoa học: Structural basis of charge transfer complex formation by riboflavin bound to 6,7-dimethyl-8-ribityllumazine synthase docx
... facilitates the formation 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 the symmetry-related ... steps of catalysis [9]. The orientation of H94 var ies according to the bound ligand but is nearly independent of the nature of residue 27. In the case of the two substrate analogue complexes of ... superpositions of the a mino acid residues in the a ctive s ite of t he A. aeolicus enzymewith the ones of the wild-type and th e mutant e nzyme of S. pombe in Fig. 8 shows t hat t he phenyl ring of residue...
Ngày tải lên: 30/03/2014, 15:20
Báo cáo khoa học: Regulation of phospholipid biosynthesis by phosphatidylinositol transfer protein Sec14p and its homologues pot
... condition of high PtdCho turnover, the addition of inositol can consume part of the PA pool, permitting that partial repression of INO1 transc ription. Alternatively, the a ddi- tion of inositol ... 4405 by the following lines of evidence (Fig. 1), namely that (a) mutations in genes encoding structural enzymes of the cytidine diphosphate choline (CDP-choline) pathway for PtdCho biosynthesis bypass ... niversity of North Carolina, Chapel Hill, NC, U SA) into YCplac22, by using EcoRI and HindIII restriction enzymess [23]. Gene disruption. Disruption of the Pld1p gene in strain PGY209 was p erformed by...
Ngày tải lên: 30/03/2014, 15:20
Báo cáo khoa học: Suppression of heat- and polyglutamine-induced cytotoxicity by nonsteroidal anti-inflammatory drugs potx
... incubated for 6 h , the cellular levels of Hsp105a and Hsc70 (a constitutive isoform of Hsp70) increased, and t he expression of Hsp70 (an inducible isoform of Hsp70) was markedly induced (Fig. ... activation of HSF by NSAIDs may be in part caused by the inhibition of these e nzymes, b y w hich the cellular concentration of arachidonate increases. IND induced thermotolerance of cells, whereas ... caused by an expanded polyQ tract is suppressed by o verexpression of Hsp105a or Hsp70 in the cellular model [9,11], the suppression by NSAIDs seemed to be due to the a ccumu- lation of hsps by these...
Ngày tải lên: 30/03/2014, 15:20