positive interface 中文意思是什麼
positive interface
解釋
正界面-
Reflection and refraction of a plane wave at the interface of double negative and double positive media
平面波在雙負和雙正參數媒質界面的反射與折射 -
( 2 ) respectively by elastic theory analyses and methods of structural mechanics, transverse static analytical equations for flexible pipeline rigid pipeline are established whose outcomes are applied in numerical example to compare those with that by finite element method. ( 3 ) considering interaction of filled soil, pipeline and foundation, with an eye to non - linear soil model, in view of the initial geo - stress field and the effects of interface between soil and pipeline, and by finite element method the calculational model and method are built for transverse stress in pipeline. then, by the great finite element analytical software ansys, those outcomes are applied in calculation example of positive buried pipe to educe the distribution of circumjacent soil pressure and stresses on cross section and to compare it with that calculated by conventional ways before those outcomes are applied in engineering case of positive buried pipe with flexible filled materials to confirm distribution of soil pressures after the measure for reduction and to compare it with measurements. as a result, the model set up in this paper is proved to be applicable after all above - mentioned analyses
本文基於彈性理論和有限元原理與方法，分析了上埋式地下管道橫向力學計算方法和性狀並探討了上埋式地下管道的減荷等問題： （ 1 ）在分析現有幾種典型的管道垂直土壓力計算方法的基礎上，探討了影響垂直土壓力的主要因素以及改進的方法； （ 2 ）分別通過彈性理論分析法和結構力學的方法，建立了地下管道柔性圓環和剛性管涵的橫向靜力計算方程，並應用在算例中，把所得結果和有限元方法所得結果進行對比分析； （ 3 ）考慮填土、管道和基礎的共同作用、土體的非線性特性、初始應力場以及土體和管道的接觸面因素的影響，利用有限元的思路，建立了地下管道橫向力學有限元計算模型和方法，並且採用大型有限元分析軟體ansys ，針對上埋式管道工程算例，得出了管周土壓力以及管道橫截面應力的分佈狀況和規律，並和理論值進行對比；針對施加柔性填料的上埋式管道工程實例，得出了減荷后的土壓力分佈，並和實測值進行了對比。 -
In this paper, it is proposed as a new mechanism that when a solidifying billet is in the stirring zone during continuous casting of steel, a thin steel shell is formed in front of the freezing interface, which results in a white band with a negative segregation followed by a positive one
作者提出了一個新的機制來解釋白亮帶的形成原因，即正在凝固的連鑄鋼坯位於攪拌區時，在凝固前沿形成一個薄殼，由此導致先發生負偏析，緊隨其後又發生正偏析的白亮帶。 -
Transmission characteristics of electromagnetic wave at the interface of positive and negative refraction index media
電磁波在正負折射率介質界面上的傳輸特性 -
Reflection and refraction of electromagnetic waves at the interface between media with positive and negative refractive indices
電磁波在正負折射率介質分界面上的折射與反射 -
It is found that the surface potential of the negative charge bits are higher than those of the corresponding positive ones. when ferroelectric polarization switching occurs, the potential difference becomes even more remarkable. the origin of this phenomenon traced to the existence of internal field within the interface layer which is near the ferroelectric / electrode interface
研究發現pzt薄膜表面的電荷沉積與薄膜-底電極界面層內部的界面電場存在密切聯系，由此我們建立了一個界面電場模型，定性地解釋了pzt薄膜表面電荷沉積的非對稱現象。
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