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the 5 international centre for theoretical physics SMR.1492 - 8
the 5 international centre for theoretical physics SMR.1492 - 8

... The theory of lattice vibrations is one of the best established chapters in modern solid-state physics, and very few of the astonishing successes met by the latter could have been achieved without a strong foundation of the former. A wide variety of physical properties of solids depend on their latt ...
Energy-Constrained Open-System Magmatic
Energy-Constrained Open-System Magmatic

Aalborg Universitet Cooling of the Building Structure by Night-time Ventilation Artmann, Nikolai
Aalborg Universitet Cooling of the Building Structure by Night-time Ventilation Artmann, Nikolai

Table of Contents
Table of Contents

Experimental Investigation of the Fluid Temperature Field and the
Experimental Investigation of the Fluid Temperature Field and the

... An experimental study on the thermal flow behavior inside a flat-plate collector and the impact of insert devices (passive heat transfer enhancement techniques) on the thermal performance of the collector is presented. Temperature fields were obtained for different Reynolds numbers (250-650) and at ...
hw2-sp11 - Learn Thermo HOME
hw2-sp11 - Learn Thermo HOME

Electronic transport in amorphous phase-change materials Jennifer Luckas To cite this version:
Electronic transport in amorphous phase-change materials Jennifer Luckas To cite this version:

... Jennifer Luckas. Electronic transport in amorphous phase-change materials. Other. Universit´e Paris Sud - Paris XI; Rheinisch-westf¨alische technische Hochschule, 2012. English. . ...
PHY113 - National Open University of Nigeria
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Transverse Thermoelectric Effects for Cooling and Heat Flux Sensing

Local Heat Transfer Coefficients Measured with Temperature
Local Heat Transfer Coefficients Measured with Temperature

... A new method to visualize local heat transfer coefficients on heat exchanger surfaces is presented and numerous experimental measurement results are shown in this thesis. The method relies on IR thermography to measure the heat transferring wall’s temperature response to an oscillating heat flux for ...
The suitability of a compact thermosyphon heat
The suitability of a compact thermosyphon heat

... temperatures inside the semiconductors at a safe level. Even with restricted usage the semiconductors would benefit from lower temperature levels, because high temperatures in the components result in fast aging and eventually breaking of the component. For example, it is said that every 10 ⁰C incre ...
Thermal Energy 16.050
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Unsteady coupled convection, conduction and radiation simulations
Unsteady coupled convection, conduction and radiation simulations

... In the aeronautical industry, energy generation relies almost exclusively in the combustion of hydrocarbons. The best way to improve the efficiency of such systems, while controlling their environmental impact, is to optimize the combustion process. With the continuous rise of computational power, s ...
Unsteady coupled convection, conduction and radiation simulations
Unsteady coupled convection, conduction and radiation simulations

... In the aeronautical industry, energy generation relies almost exclusively in the combustion of hydrocarbons. The best way to improve the efficiency of such systems, while controlling their environmental impact, is to optimize the combustion process. With the continuous rise of computational power, s ...
2004 Lethander AIAA
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... eventually cools off (Fig. 6–1). This process satisfies the first law of thermodynamics since the amount of energy lost by the coffee is equal to the amount gained by the surrounding air. Now let us consider the reverse process—the hot coffee getting even hotter in a cooler room as a result of heat ...
Transverse electric plasmons in bilayer graphene
Transverse electric plasmons in bilayer graphene

... matches the dispersion curve. Note that the singularity in ℑσ (ω ) at h̄ω = γ is of the form 1/(γ − h̄ω ), whereas the singularity at h̄ω = 2μ is logarithmic (as in monolayer graphene [19]). As a consequence, the departure of the dispersion curve from the light line in bilayer graphene is much faste ...
Application of single-wavelength radiation thermometry
Application of single-wavelength radiation thermometry

Study on conduction mechanisms of medium range of temperatures
Study on conduction mechanisms of medium range of temperatures

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The Thermal Dielectrophoretic Force on a Dielectric Particle in
The Thermal Dielectrophoretic Force on a Dielectric Particle in

... other. The general case for an arbitrary angle can be found simply by a superposition of these two cases. We compute the fully-coupled system in COMSOL to determine a range of validity for our linearized model and show a practical way to superimpose the classical DEP and thermal DEP forces to find t ...
Numerical Simulation of Residual Stress and Strain
Numerical Simulation of Residual Stress and Strain

... Welding, among all mechanical joining processes, has been employed at an increasing rate for its advantages in design flexibility. In addition to that, cost savings, reduced overall weight and enhanced structural performance. The highly localized transient heat and strongly nonlinear temperature fie ...
Density - Conductivity Measurements in Green
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... established, indicating that measurements of electric conductivity could indeed be exploited in an effort to render valid information about the density of a green-state P/M compact. However, while the correlation between green density and electric conductivity is linear for non-lubricated parts, the ...
Passivhaus primer: Designer`s guide A guide for the design team
Passivhaus primer: Designer`s guide A guide for the design team

... for the first floor and a thermally broken brise-soleil for the ground floor in order to reduce high angled solar gains in summer. Correct positioning of fixed shading devices will allow maximum use of direct solar gains from the lower angled winter sun when it is ...
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Thermal conductivity

In physics, thermal conductivity (often denoted k, λ, or κ) is the property of a material to conduct heat. It is evaluated primarily in terms of Fourier's Law for heat conduction.Heat transfer occurs at a lower rate across materials of low thermal conductivity than across materials of high thermal conductivity. Correspondingly, materials of high thermal conductivity are widely used in heat sink applications and materials of low thermal conductivity are used as thermal insulation. The thermal conductivity of a material may depend on temperature. The reciprocal of thermal conductivity is called thermal resistivity.Thermal conductivity is actually a tensor, which means it is possible to have different values in different directions. See #Thermal anisotropy below.
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