thermal stratification of contained fluid

... Effective thermal conductivity of the mixture ke , thermal conductivity of the uid k f , ratio of thermal conductivity of particle to thermal conductivity of uid ®, and volume fraction of particles ... 2b shows the ratios of the thermal conductivity of the mixture ke to the thermal conductivityof the correspondingbase uid k f For all of the uids, the thermal conductivity of the mixture increases ... conductivity of a random suspension of spherical particles Because of the identical mathematical formulations, computations of electrical conductivity of mixtures are the same as computations of thermal...

Ngày tải lên: 06/05/2014, 08:54

... Effective thermal conductivity of the mixture ke , thermal conductivity of the uid k f , ratio of thermal conductivity of particle to thermal conductivity of uid ®, and volume fraction of particles ... 2b shows the ratios of the thermal conductivity of the mixture ke to the thermal conductivityof the correspondingbase uid k f For all of the uids, the thermal conductivity of the mixture increases ... conductivity of a random suspension of spherical particles Because of the identical mathematical formulations, computations of electrical conductivity of mixtures are the same as computations of thermal...

Ngày tải lên: 06/05/2014, 08:58

... Effective thermal conductivity of the mixture ke , thermal conductivity of the uid k f , ratio of thermal conductivity of particle to thermal conductivity of uid ®, and volume fraction of particles ... 2b shows the ratios of the thermal conductivity of the mixture ke to the thermal conductivityof the correspondingbase uid k f For all of the uids, the thermal conductivity of the mixture increases ... conductivity of a random suspension of spherical particles Because of the identical mathematical formulations, computations of electrical conductivity of mixtures are the same as computations of thermal...

Ngày tải lên: 06/05/2014, 09:02

... 6.45 Thermal comfort of various facade designs with north wind direction 171 Figure 6.46 Thermal comfort of various facade designs with south wind direction 171 Figure 6.47 Thermal comfort of ... frequency of occurrence of particular wind conditions in Feb 197 Figure App.1.2 The frequency of occurrence of particular wind conditions in Mar 197 Figure App.1.3 The frequency of occurrence of ... frequency of occurrence of particular wind conditions in May 198 Figure App.1.5 The frequency of occurrence of particular wind conditions in Jun 198 Figure App.1.6 The frequency of occurrence of...

Ngày tải lên: 14/09/2015, 13:58

... consisted of the measurement of thermal conductance of two different typologies of building wall: a wall in blocks of calcarenite sandstone assembled with mortar, typical of the constructions of "Sassi ... black-box methods, the thermal conductance of the wall With this particular type of construction of the monitored walls, it is not possible to use other methods of determination of thermal conductance ... University of Bari in 1979 University Researcher at the of Engines and Energy Institute of the Faculty of Engineering at the University of Bari from 1983 to 1987 Associate professor of Technical...

Ngày tải lên: 05/09/2013, 14:58

... of scientific committees for energy, environment, biofuels and hydrogen, as well as Member of the Board of Directors of the Greek Combustion Institute She is referee for General Secretariat of ... the thermal analysis equipment, Prof K Komnitsas, Dr D Zaharaki and Prof V Gidarakos from the Technical University of Crete, for part of the chemical analyses of the samples References [1] Seung-Soo ... the activation energy of component j, g expresses the effect of ambient gas composition and f describes the change of surface reactivity as a function of the fractional burn off: As the function...

Ngày tải lên: 05/09/2013, 15:28

... hinged at the top of the cooker The main objective of this present work is to investigate two designs of solar cookers, to evaluate the thermal performance under different modes of operation such ... Al-Towaie [6] A series of out-door experiments were performed on the double-glazed solar cooker, Kumar [7] One of the earliest mathematical models to test the thermal performance of a Solar Cooker ... Figure The tracking system of the solar cooker The important parts of a hot box solar cooker include; a) outer box: the outer box of a solar heater is generally made of galvanized iron b) inner...

Ngày tải lên: 05/09/2013, 17:03

... value of is a multiplier for the Q load of 50 Watts 15 A graph of the function can be seen by selecting Review Click the Graph button Create a Transient Thermal Analysis Create a transient thermal ... with increment of 0.004 m and total of 15 cuts Create a cut to accommodate the fan at the top of the heat sink Create another cut to facilitate the installation clamp The dimensions of the cut are ... correct, then click the Continue button For Model Type, choose Thermal Click the OK button Create a Surface Region On the top of CPU, the size of area in direct contact with the heat sink when the heat...

Ngày tải lên: 19/01/2014, 05:20

... Studies of thermal unfolding of Tm may provide valuable information on the structure of Tm both free Thermal unfolding of nonmuscle tropomyosin in solution and bound to actin Thermal unfolding of ... temperature of the cooperative thermal transitions of Tm Replacement of exon 6b in Tm5a by exon 6a in Tm5b leads to additional increase in the thermal stability of Tm Results Thermal unfolding of recombinant ... Previous studies of thermal unfolding of skeletal Tm have allowed assignment of the thermal transitions to specific regions of Tm for skeletal a-Tm [8,9,14] Thermal unfolding of smTm (Fig 3A)...

Ngày tải lên: 19/02/2014, 07:20

... out a preliminary characterization of the thermally induced aggregation of SK using a variety of techniques The results provide us with some of the properties of these high molecular mass aggregates ... fluorescence spectrum of a 10 lM solution of ANS in the presence and absence of 10 lM of SKA1, at pH 7.0 and 4.4 The presence of the fragment produces a large increase in the intensity of ANS fluorescence, ... Detection of temperature-induced SK aggregation by gel-filtration chromatography With the aim of identifying the nature of the irreversible processes occurring during the thermal denaturation of SK,...

Ngày tải lên: 21/02/2014, 03:20

... Introduction 1.3 Properties of foods The properties of importance in thermal processing of foods are the physical (density, viscosity, and glass transition temperature), thermal (thermal conductivity ... properties of many foods as a function of their composition and temperature 1.4 Heating mechanisms Numerous methods exist for thermal processing of foods Some of these techniques include the use of steam ... implementation of this type of control and it can be applied to many types of heat exchangers The cascade is not required, but does offer the advantages of faster response and provides a view of the...

Ngày tải lên: 21/02/2014, 22:20

... new procedure for study of DebyeWaller and of the atomic correlated vibration in XAFS theory Acknowledgements One of the authors (N V Hung) thanks Prof J J Rehr (University of Washington) for very ... potential of Cu and Ni compared to experiment [7] Figure 2: Temperature dependence of the calculated σ , u2 for Cu and Ni compared to experiment [7,8] dependence of the calculated MSRD σ2 of Cu and ... dependence of our calculated correlation function DCF C R of Cu and Ni is illustrated in Figure and their ratio with function u2 and Figure 3: Temperature dependence of the calculated DCF C R of Cu...

Ngày tải lên: 05/03/2014, 14:20

... error of the given values of Tm did not exceed ±0.2 °C The relative error of the given values of DHcal did not exceed ±10% G-actin Results Effects of the D-loop cleavage on the thermal unfolding of ... [25– 27], G–F transformation of actin, and stabilization of F-actin by phalloidin and Pi analogs [28] Moreover, the effects of nucleotides on the thermal unfolding of F-actin have been studied ... studying the thermal unfolding of proteins Previous studies have shown that DSC can be successfully used to reveal the changes in the thermal unfolding of actin induced by interaction of G-actin...

Ngày tải lên: 06/03/2014, 22:21

... Thr15 to Ala in the vicinity of the hydrophobic core induces a tighter binding of the cofactor in C freundii TPL, thereby reducing the decomposition rate of the cofactor by a Pictet–Spengler ... h in 200 mL of LB medium containing 100 lgÆmL)1 of ampicillin The cells were then suspended in mL of NaCl ⁄ Pi, mixed with an equal volume of Cellytic BÔ, treated for 30 with 20 lL of DNase (10 ... analysis of the consequent hits was also performed to investigate the simultaneous improvement of the activity and stability of Symbiobacterium toebii TPL, as a better structural understanding of how...

Ngày tải lên: 07/03/2014, 00:20

... 1944 Preliminary study of the thermal requirements of desert reptiles Bull Am Mus Nat Hist 83:261– 296 Lowe Jr CH, Vance VJ 1955 Acclimation of the critical thermal maximum of the reptile Urosaurus ... consist of a series of pools or billabongs where temperatures can reach up to 40ЊC in summer [48] The effects of the intensive use of pesticides on Australia’s aquatic ecosystems are of particular ... concentrations of selenate significantly (p Ͻ 0.05) decreased the CTMax of P promelas by 5.9ЊC [39] compared with that of the control Sublethal copper exposure significantly decreased the thermal tolerance of...

Ngày tải lên: 14/03/2014, 20:20

... general morphology and dimension of SiOx nanowires Figs 2a and b show the TEM images of the product, indicating that this raw material indeed consists of aggregates of nanowires Although most nanowires ... morphology of SiOx nanowires (Arrow 1: helical nanowires or nanosprings; Arrow 2: nanoparticles) The lower right inset of (a) is the SAED pattern of SiOx nanowires (c) HRTEM image of a single ... nanoparticle at the tip of the nanowire appears dark and have high contrast compared with the nanowire stem A thin amorphous layer of 3–8 nm thickness exists on the surface of nanoparticle at the...

Ngày tải lên: 16/03/2014, 15:14

... agglomerated clusters consisting of high density of nanowires The magnified view of a single cluster is depicted in the inset of Fig 2(d) These observations suggest that growth of nanowires in the present ... respectively, where high density of 1-D nanostructures in the form of wires having hundreds of micrometers length is clearly seen Fig 2(a) also reveals that several layers of nanowires were deposited ... case of amorphous nanowires whereas the latter is based on the three-step mechanism involving (i) diffusion of Si/SiOx vapors into the metal particles, (ii) formation of liquid droplet of metal...

Ngày tải lên: 16/03/2014, 15:18

... The plenty of the SiNWs with the length of tens of micrometers were observed The corresponding EDS in the insets indicate that the SiNWs consists of high-intensity Si and small quantity of oxygen ... in the center of the furnace The furnace was evacuated for several hours to reach a low vacuum of 20 Pa The temperature of the furnace was then raised to 1100◦ C at a heating rate of 20◦ C=s and ... SiO2 and -Al2 O3 came from the decomposition of SiO and the Al2 O3 substrate, respectively Fig TEM images of the SiNWs produced by thermal evaporation of SiO on a silicon wafer (I, the upper right...

Ngày tải lên: 16/03/2014, 15:21

... diameter of B20 nm were successfully synthesized on silicon wafers by thermal evaporation of sulfur powders It is considered that the decomposition of SiS resulted in the formation of SiNWs Furthermore, ... Results and discussion The FESEM morphology of the SiNWs with a diameter of B20 nm (that of a very few SiNWs is over 50 nm) is shown in Fig The EDX (the inset of Fig 1) taken from the corresponding ... The TEM image of a number of curved SiNWs is shown in Fig It can be seen that the average diameter of the SiNWs was B20 nm, while the minimum one was less than 10 nm The structure of the SiNWs...

Ngày tải lên: 16/03/2014, 15:21