نتایج جستجو برای: energy transfer
تعداد نتایج: 916945 فیلتر نتایج به سال:
In this article, mixed convection heat transfer of alumina-water nanofluid in an inclined and baffled C-shape enclosure is studied. It is assumed that the flow is laminar and steady. There is no energy production, energy storage and viscous heat dissipation. Furthermore, the nanofluid is considered as a continuous, Newtonian and incompressible fluid. Governing equations are discretized by finit...
In the present study, the conjugate turbulent free convection with the thermal surface radiation in a rectangular enclosure bounded by walls with different thermophysical characteristics in the presence of a local heater is numerically studied. The effects of surface emissivity and wall materials on the air flow and the heat transfer characteristics are the main focus of the present investigati...
existence of energy reserves as god-given assets was considered as a unique opportunity for the former republics of soviet :union: , their dependence on the former center (russia) for transferring energy to the consuming markets has confronted them with various challenges. as one of these republics, turkmenistan enjoys excellent geo-economic status since a long time ago due to its huge natural ...
Hybridization of nucleic acids with secondary structure is involved in many biological processes and technological applications. To gain more insight into its mechanism, we have investigated the kinetics of DNA hybridization/denaturation via fluorescence resonance energy transfer (FRET) on perfectly matched and single-base-mismatched DNA strands. DNA hybridization shows non-Arrhenius behavior. ...
Energy is a disciplinary core idea and cross-cutting concept in the K-12 Framework for Science Education Next Generation Standards (NGSS). As numerous authors point out, energy model these standards emphasizes connections between systems. Using ideas to interpret or make sense of phenomena means tracking transfers across systems (including objects fields) as unfold. To support students progress...
a one dimensional dynamic model for a riser reactor in a fluidized bed catalytic cracking unit (fccu) for gasoil feed has been developed in two distinct conditions, one for industrial fccu and another for fccu using various frequencies of microwave energy spaced at the height of the riser reactor (fccu-mw). in addition, in order to increase the accuracy of component and bulk diffusion, instanta...
چکیده ندارد.
The exterior envelope of buildings play a significant role on the amount of energy consumption in office buildings that are located in warm climates. The present study focuses on the reduction of energy consumption by integrating daylight and artificial lights, and by changing the characteristics of exterior envelope of buildings including window coverage and dimension of buildings. Moreover, t...
The complete Dirac-Volkov relativistic treatment of the first Born limit of laser-assisted potential scattering of electrons within a circularly polarized laser field has been compared to the nonrelativistic Bunkin-Fedorov approach. The dependence of the quiver energy on the electron four-momentum in an ultrastrong laser field leads to different energy transfer cross sections depending on the s...
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