منابع مشابه
Self-heating structural materials
Self-heating structural materials, being useful for deicing and space heating, are reviewed. They include cement–matrix and polymer–matrix composites that are rendered self-heating through enhancing their effectiveness for resistance heating. The enhancement is attained by the use of electrically conductive fibers (continuous or discontinuous) and interlayers. The interlaminar interface between...
متن کاملSelf-Replication of Mesa Patterns in Reaction-Diffusion Systems
Certain two-component reaction-diffusion systems on a finite interval are known to possess mesa (box-like) steadystate patterns in the singularly perturbed limit of small diffusivity for one of the two solution components. As the diffusivity D of the second component is decreased below some critical value Dc, with Dc = O(1), the existence of a steady-state mesa pattern is lost, triggering the o...
متن کاملInvestigation of Self-Heating Phenomenon in Small Geometry Vias Using Scanning Joule Expansion Microscopy
This paper reports the use of a novel thermometry technique, scanning Joule expansion microscopy (SJEM), to study the steady state and dynamic thermal behavior of small geometry vias under sinusoidal and pulsed current stress for the first time. Spatial distribution of temperature rise surrounding a sub-micron via has been determined and the corresponding temperature contour image has been extr...
متن کاملSelf-heating in Short Intra-block Wires
近年,熱問題が主要な設計問題となってきている.エレク トロマイグレーション [1,2]などに代表される信頼性低下 要因やリーク電流は温度に強く依存し,温度上昇による リーク電力増大は発熱量をさらに増加させるためである. この問題を解決するために,チップ全体の熱解析やアー キテクチャレベル [3]から物理設計レベル [4]の熱指向設 計が産学界双方で注目されている. 微視的視点では.グローバル配線の自己発熱問題が集中 的に研究されてきた [5–11].配線抵抗によるエネルギー 消費が配線内部に熱を発生させ,それが温度上昇に繋が る現象が自己発熱効果である.配線の過熱により,(1)配 線の電気抵抗の増大による信号伝達速度の低下,(2)エレ クトロマイグレーションなどによる信頼性低下,が生じ る.グローバル配線での自己発熱問題は以下の理由によ り集中的に研究されてきた: (1)グローバル配...
متن کاملSelf-Regulated AGN Heating in Elliptical Galaxies
We study the effect of active galactic nuclei (AGN) heating on the chemodynamical evolution of elliptical galaxies and their X-ray and optical properties using highresolution Λ-dominated cold dark matter cosmological simulations. Our model considers an AGN as being “active” when a convergent gas inflow condition exists within a galaxy’s nucleus; otherwise, the AGN is assumed to remain dormant. ...
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2001
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.1367880