نتایج جستجو برای: static thermal rating

تعداد نتایج: 368011  

2009
Cheol-Soo Park

Blind systems have been introduced to provide visual and thermal comfort, as well as to reduce energy use in buildings. A wide variety of such systems exist in terms of thermal and optical properties, location (exterior, interior), and physical configuration (size, distance between the blind slats). The current problem with blinds is that their operation is not based on the dynamics of the room...

ghiyam eslami, shahram abbaspour

Micro system technology is a relatively new scientific research that deals with the development and study of properties of materials in micro dimensions. Micro-grippers are widely used in switching, positioning, and assembling micron sized components in micro-robotics. In this study, the static and dynamic behavior of visco-elastic Micro-Tweezers under the thermal and electrostatic field is...

2004
MARIUSZ KACZMAREK ANTONI NOWAKOWSKI

Abstract: We discuss limitations of the known methods of IR imaging in diagnostics of breast cancer. In conclusion we show that the known methods, based on simple observation of external temperature distribution, are not fully effective. Even advanced pattern recognition could not help in analysis of static images. May active dynamic thermography, known in non-destructive testing of materials, ...

Journal: :Physical review. D, Particles and fields 1994
Jackiw Liu Lucchesi

First, we investigate the static non-Abelian Kubo equation. We prove that it does not possess finite energy solutions; thereby we establish that gauge theories do not support hard thermal solitons. This general result is verified by a numerical solution of the equations. A similar argument shows that " static " instantons are absent. In addition, we note that the static equations reproduce the ...

2008
Daniel Sudarsky Atsushi Higuchi

We show that in complete analogy with the usual bremsstrahlung process, when studied from the coaccelerated observer’s point of view, a charge moving along the integral curves of the static Killing field in the exterior of a static black hole gives rise to the emission of zero-energy photons, induced by the thermal bath of Hawking Radiation.

2007
Daniel Sudarsky Atsushi Higuchi

We show that in complete analogy with the usual bremsstrahlung process, when studied from the coaccelerated observer's point of view, a charge moving along the integral curves of the static Killing eld in the exterior of a static black hole gives rise to the emission of zero-energy photons, induced by the thermal bath of Hawking Radiation.

Journal: :Microelectronics Reliability 2010
M. Tounsi Amrane Oukaour Boubekeur Tala-Ighil Hamid Gualous Bertrand Boudart Djamil Aïssani

The success of the high temperature power electronic applications depends on the power device reliability. The increasing thermal demands, like in hybrid electric cars, require power devices operating at junction temperatures above their common level of 125 C. The thermal cycles generated in standard modules in such conditions induce several failure mechanisms in their package and chips. This a...

2003
Yu Du Sharron Wang

In this paper, we propose a hazard rate model for studying credit rating and credit rating changes. Theoretically the hazard rate model is more appropriate than the previous static models. Yet it is difficult to estimate hazard rate model, especially when the covariates are time-varying. This paper extends the results of Shumway(2001) and shows that a multiple-state hazard rate model can be est...

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