two everyday examples of heat transfer by conduction
An experimental investigation of heat transfer and fluid flow in a rectangular duct with inclined discrete ribs
Ngày tải lên :
05/09/2013, 16:10
... 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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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
Ngày tải lên :
19/02/2014, 06:20
... 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. ... Hsp27(C137A) mutant is characterized by the sub-
stitution of the unique cysteine residue of Hsp27 by an
alanine residue, and is unable to protect against cell
death induced by different agents, including...
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Tài liệu Báo cáo khóa học: Cloning and characterization of two distinct isoforms of rainbow trout heat shock factor 1 ppt
Ngày tải lên :
19/02/2014, 12:20
... there two isoforms of HSF1 in rainbow
trout? Although the existence of the two genes may be
explained simply by ancestral salmonid tetraploidy, this
does not rule out the possibility that the isoforms ... 10.0;
GAPEXT
,0.05;
GAPDIST
,8;
MAXDIV
,
40;
ENDGAPS
,off;
NOPGAPS
,off;
NOHGAPS
,off.Graphical
output of the bootstrap figure was produced by the program
TREEVIEW
.
Isolation of RNA and RT-PCR analysis
Total RNA ... fish
species. Here, we present evidence for existence of two
distinct HSF1 isoforms in rainbow trout and the formation
of heterotrimers of these isoforms in vitro.
Materials and methods
Cell culture...
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Báo cáo khoa học: Differential recognition of heat shock elements by members of the heat shock transcription factor family ppt
Ngày tải lên :
07/03/2014, 00:20
... 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,...
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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
Ngày tải lên :
16/03/2014, 06:20
... effect of Hsp27-3D on the heat-
induced aggregation of F-actin. (A) F-actin (1.0 mgặmL
)1
) was
heated at a constant rate of 1 Cặmin
)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,...
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doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 1 of 3
Ngày tải lên :
17/03/2014, 15:00
... There are two 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 ... 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, ... latent heat of vaporization. This is the amount of heat added or
removed to change phase between liquid and vapor. The latent heat of vaporization is sometimes
called the latent heat of condensation.
Different...
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doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 2 of 3
Ngày tải lên :
17/03/2014, 15:00
... Transferring Heat
Heat is always transferred when a temperature difference exists between two bodies. There are
three basic modes of heat transfer:
Conduction involves the transfer of heat by the interactions ... 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, ... heat transfer situation.
Figure 7 Combined Heat Transfer
Using the figure representing flow in a pipe, heat transfer by convection occurs between
temperatures T
1
and T
2
; heat transfer by conduction...
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doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 3 of 3
Ngày tải lên :
17/03/2014, 15:00
... 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...
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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
Ngày tải lên :
30/03/2014, 15:20
... 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 ... 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 ... consequence of the
smaller size of the phenyl ring of Y 27 as compared to the
indole r ing of W27. Clearly further biophysical studies are
required to substantiate these notions.
The crystal structure of...
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Báo cáo khoa học: Regulation of phospholipid biosynthesis by phosphatidylinositol transfer protein Sec14p and its homologues pot
Ngày tải lên :
30/03/2014, 15:20
... 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 ... INO1
gene, the most highly regulated of a set of genes encoding
enzymes of phospholipid biosynthesis, is deregulated (dere-
pressed in the presence of inositol) [8]. Using two criteria –
Opi
–
phenotype ... 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...
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