examples of heat transfer by convection in everyday life

... 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...

Ngày tải lên: 05/09/2013, 16:10

Ngày tải lên: 14/07/2014, 13:33

Ngày tải lên: 14/12/2013, 16:45

... 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):...

Ngày tải lên: 30/03/2014, 14:20

... 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...

Ngày tải lên: 02/04/2014, 15:51

... 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 ... (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 ... operating tempera- ture of 70°C. It is to be cooled in 25°C air by attaching aluminum fins with a total surface area of 12 cm 2 . The convection heat transfer coefficient between the fins and the...

Ngày tải lên: 08/04/2014, 11:00

... 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 ... are obtained. First, during picosecond laser heating, the heat transfer process predicted using the continuum approach agrees with the result of the MD simulation. Second, when melting happens, ... 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,...

Ngày tải lên: 06/05/2014, 08:55

... 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...

Ngày tải lên: 06/05/2014, 08:57

... 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...

Ngày tải lên: 06/05/2014, 08:59

... 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...

Ngày tải lên: 21/06/2014, 17:20

Ngày tải lên: 22/06/2014, 06:20

Ngày tải lên: 27/06/2014, 08:20

Ngày tải lên: 06/08/2014, 19:21

Ngày tải lên: 08/08/2014, 21:20

Ngày tải lên: 10/08/2014, 05:21

Ngày tải lên: 12/08/2014, 15:22

Ngày tải lên: 14/08/2014, 14:21

Ngày tải lên: 14/08/2014, 20:22

... 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....

Ngày tải lên: 16/02/2014, 23:20

... 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...

Ngày tải lên: 06/03/2014, 21:20