نتایج جستجو برای: thermal wave
تعداد نتایج: 429503 فیلتر نتایج به سال:
The thermal ray theory is applied to the expérimental thermal scan on a razor blade. Good magnitude agreemettt is obtained using a far-field ray formula provided correction is made for the Boltzmann blackbody radiation law. The effect of conductivity variation with température is found to be small.
A microfabricated calorimeter (μ-calorimeter) with an enclosed reaction chamber is presented. The 3D micromachined reaction chamber is capable of analyzing liquid samples with volume of 200 nl. The thin film low-stress silicon nitride membrane is used to reduce thermal mass of the calorimeter and increase the sensitivity of system. The μ-calorimeter has been designed to perform DC and AC calori...
Deformation modes were studied for Ti₃AN (A = Al, In and Tl) by applying strain to the materials using first-principle calculations. The states of the bonds changed during the deformation process, and the Ti-N bonds remained structurally stable under deformation. The elastic anisotropy, electronic structures, hardness, and minimum thermal conductivity of anti-perovskite Ti₃AN were investigated ...
اثر متقابل فاز پادفرومغناطیس (af) و ابررسانایی (sc) همواره مورد توجه فیزیکدانان تجربی و نظری بوده است. رقابت میان دو پارامتر نظم متفاوت در بسیاری از سیستم های گوناگون از جمله ابررساناهای دمای بالا دیده شده است. در برخی ترکیبات مثل اکسید مس فازهای پادفرومغناطیس و ابررسانایی بسیار نزدیک بهم ولی مجزا هستند؛ در حالی که در ترکیبات دیگری از قبیل ابررساناهای آلی، ترکیبات سه تایی و ترکیبات فرمیون های س...
Oscillating thermal diffusion in a sound wave in a mixture of two gases is remarkably effective for separating the components of the mixture. We consider this separation process in boundary-layer approximation, with zero temperature gradient and zero concentration gradient along the direction of sound propagation. In the boundary layer, the combination of thermal diffusion with the oscillating ...
Thermal wave inspection techniques utilise controlled heat diffusion to probe the surface and subsurface structure of a component [1-3]. Various techniques have been developed which use localised intensity or spatially modulated laser heating for thermal wave generation [2] and a variety sensors, acoustic, optical, and thermal, for their detection [3,4]. The quantitative application of these te...
In 2000 the first mirror suspensions to use a quasi-monolithic final stage were installed at the GEO600 detector site outside Hannover, pioneering the use of fused silica suspension fibers in long baseline interferometric detectors to reduce suspension thermal noise. Since that time, development of the production methods of fused silica fibers has continued. We present here a review of a novel ...
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