examples of heat transfer by radiation in everyday life
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
... enhancement of heat transfer heated
surface to the working fluid. In the present work experimental investigations has been carried out to
study the effect of a gap in the inclined rib on the heat transfer ... Associate Professor in the Department of Mechanical Engineering at
M.A.N.I.T. Bhopal (M.P.) INDIA. He received Ph D degree from IIT Roorkee , INDIA. He is working in
the area of heat transfer and ... the heated wall in transverse, inclined, V-continuous and V- discrete
pattern. Int. Journal of Heat Mass Transfer 2003; 30(2): 241-250.
[17] Bhagoria J.L. and Sahu M.M. Augmentation of heat transfer...
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Báo cáo khoa học: Role of peroxidase inhibition by insulin in the bovine thyroid cell proliferation mechanism pdf
Ngày tải lên :
30/03/2014, 14:20
... monolayer
primary cultures of bovine thyroid cells, maintained in the
presence of insulin, produced a cytosolic inhibitor of TPO
activity. Its molecular mass of less than 2 kDa coincides
with that reported ... decrease of thyroid hormone biosynthesis in primary
cultures in the presence of insulin. In addition, our data
suggest that insulin stimulates cell division, in bovine
thyroid cultures, promoting ... (1 lg of enzyme per 15 lgofprotein)at37 °C,
during 12 h.
Proteinase K (1 lg of enzyme per 10 lgofprotein)was
incubated with the cytosolic fraction in a medium contain-
ing (final concentration):...
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fluid flow, heat transfer and boiling in micro-channels
Ngày tải lên :
02/04/2014, 15:51
... reported,
foraflowof1.2l/min at 30 kPa.
Micro-channel heat transfer can be pushed even further by recourse to boiling.
In addition to offering higher heat transfer coefficients, boiling convection in micro-
channels ... local heat transfer coefficient increased with
decreasing vapor quality. The performance of a micro-channel heat sink is enhanced
by increasing the heat transfer area and coefficient, the first being ... mechanics,
in particular heat and mass transfer in micro-channels. He headed the Chair of En-
gineering Thermal Physics at the Ukta Industrial Institute, teaching undergraduate
and graduate courses in...
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Ptinciples of heat transfer
Ngày tải lên :
08/04/2014, 11:00
... (a) -in. aluminum,
(b) -in. stainless steel with a 1 -in thick layer of
fiberglass insulation on the inside, and (c) of sandwich
construction with a -in thick layer of stainless
steel, a 1 -in thick ... defined in terms of the local value by
(1.12)
For most engineering applications, we are interested in average values. Typical val-
ues of the order of magnitude of average convection heat transfer ... heat is transferred
by convection and radiation in parallel. Hence, the rate of heat flow to the interior
surface of the wall is the sum of the two heat flows
(1.36)
where T
g
= temperature of...
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molecular dynamics simulation of heat transfer and phase change during
Ngày tải lên :
06/05/2014, 08:55
... change of
metallic atoms due to laser beam absorption. Häkkinen and
Landman [3] studied dynamics of superheating, melting, and
annealing at the Cu surface induced by laser beam irradiation
using ... two-step heat transfer model developed by Anisimov
[4]. This model describes the laser metal interaction in two
steps including photon energy absorption in electrons and
lattice heating through interaction ... Study of Light-to -heat Absorption
Mechanism in atomic Systems," International Journal of Heat
and Mass Transfer, 41, pp. 839-849.
3. Häkkinen, H., and Landman, U., 1993, "Superheating,...
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molecular dynamics simulation of heat transfer and phase change during
Ngày tải lên :
06/05/2014, 08:57
...
Landman [3] studied dynamics of superheating, melting, and
annealing at the Cu surface induced by laser beam irradiation
using the two-step heat transfer model developed by Anisimov
[4]. This model ... of
predicting the heating process induced by a picosecond laser
pulse.
Laser Induced Phase Change
In this section, various phenomena accompanying phase
change in an argon target illuminated ...
density of atoms on each lattice layer. Due to the increase of the
atomic kinetic energy in laser heating, atoms vibrate more in the
crystal region, causing a lower peak of the number density of...
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molecular dynamics simulation of heat transfer and phase change during
Ngày tải lên :
06/05/2014, 08:59
... 2001 by ASME
nm, which is the melting interface region. The temperature in
this flat region is around 90 K, which is higher than the melting
point, indicating superheating at the melting front. ... of
predicting the heating process induced by a picosecond laser
pulse.
Laser Induced Phase Change
In this section, various phenomena accompanying phase
change in an argon target illuminated ...
density of atoms on each lattice layer. Due to the increase of the
atomic kinetic energy in laser heating, atoms vibrate more in the
crystal region, causing a lower peak of the number density of...
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báo cáo hóa học:" Reduction of graphene oxide by an in-situ photoelectrochemical method in a dye-sensitized solar cell assembly" ppt
Ngày tải lên :
21/06/2014, 17:20
...
most of the oxygen-containing groups of GO were reduced by the photoinduced
electrons.
RGO obtained by in- situ reduction was analyzed by HRTEM. Figure 3b shows a low
magnification image of ... positions of RGO.
Conclusions
RGO is obtained by the in- situ photoelectrochemical reduction of GO in a DSSC
assembly. The reduction results in a partial removal of oxygen-containing groups of
GO. ... of the oxygen-containing groups are removed. In addition, the
atomic ratio of carbon and oxygen (C/O), obtained by taking the ratio of C1s and O1s
peak areas in XPS spectra, increases from 2.7...
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Tài liệu Digital Material - Tracing New Media in Everyday Life and Technology (Amsterdam University Press - Media Matters) ppt
Ngày tải lên :
16/02/2014, 23:20
... in order
to influence their behavior. In an advice to the former US Secretary of Defense
regarding ‘the creation and dissemination of all forms of information in support
of [PSYOPS] in time of ... alarming concentration of the ownership
of mainstream commercial media, with a small handful of multinational med-
ia conglomerates dominating all sectors of the entertainment industry (Jenkins
2007).
What ... can help by giving money to the WFP, by
teaching others about famine, and by organizing fundraising activitie s at school
or at home. Secondly, the game is often played in the context of a classroom
situation....
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THE INTERNET IN EVERYDAY LIFE: AN INTRODUCTION pdf
Ngày tải lên :
06/03/2014, 21:20
...
1
THE INTERNET IN EVERYDAY LIFE: AN INTRODUCTION
Caroline Haythornthwaite and Barry Wellman
Draft of chapter to appear in The Internet in Everyday Life,
edited by Barry Wellman & Caroline ... development of synergies
between online and offline life – may provide beneficial outcomes.
BRINGING IT ALL TOGETHER
Dovetailing with Everyday Life
Much of the discussion of Internet use ... ship of the Internet
– as well as Canada, Britain, Germany, India, Japan and globally that examine the impact of “the
Internet” in everyday life. The authors have in common the acceptance of...
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