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boundary effect 【物理學】邊界效應。

boundary layer

The ionic conductivities of lsgm enhanced with the measuring temperature . based on the results of electrical measurements , the relative contribution of the grain interior and grin boundaries to the overall resistance was discussed in detail in relation with the grain boundary effect and mg doping contents . the grain boundary effect decreased monotonously with the increase of mg doping in the range of testing temperature 在相同測試溫度下, lsgm體系離子電導率隨著鎂含量的增加而增大,在y = 0 . 2時達到最大值,此后電導率隨鎂含量的增加而降低;在測試溫度范圍內,所有lsgm樣品的離子電導率均隨溫度的升高而增加。

On the basis of frequent field - studies , in the light of the basic theories of ecological design , it tells the benefits and necessity of ecological design for city squares , and demonstrates the basic aims ( aim of function , aim of image , aim of environment ) ; according to the weather and vegetation characteristics of subtropical zone , it tells the cardinal principles ( humality , sustainable development , characteristics distinguishing , integral harmony , public participation ) for the design ; with regard to the architecture enclosing , the space organizing , the boundary effects of city squares , and their size and color , this dissertation also analyzes the space and environment of city squares , and especially discusses the ideas of how to decide the size of a square regarding the problem of building big city squares blindly ; and summarizes the key points of ecological plan and design for the component factors of the space and environment of city squares , and the problem of greening of squares is paid much attention 在多次實地考察的基礎上,本文從生態設計的基本理論出發,指出了城市廣場生態設計的意義及必要性,明確了設汁的基本目標(功能目標、形象目標、環境目標) ;結合亞熱帶區域的地理氣候與植被特征,提出了亞熱帶區域城市廣場生態設計的基本原則(人性化、可持續發展、突出特色、整體協調、公眾參與) ;分別從尺度、色彩、與周邊建筑的圍合、空間組織、邊界效應及內部交通等方面對廣場的空間環境進行了分析,其中針對當今我國廣場建設中“盲目求大”的現象,重點分析了如何把握廣場的尺度問題;總結了廣場的綠化、地面鋪裝、建筑小品、水體等空間環境構成要素的生態設計要點,其中著重討論了當今廣場建設中頗為嚴重的綠化問題。

The electronic - ceramic capacitive - type sensor for coi is based on the nanometer and semiconductor theories . according to the mechanism of the gas surface absorbing actions and the mechanism of grain boundary effect of semiconductors , the capacitance of the sensor can be changed with the variation of co2 concentration Co _ 2氣敏陶瓷電容型傳感器將納米理論和半導化理論引入了傳感器的研制過程中,這種傳感器通過氣體表面吸附,及在半導體介質的晶界層產生的晶界效應,使得不同濃度co _ 2氣體產生不同的電容值。

But due to the difficulties of the theoretical calculation and the limitation of the technique of image display , only some two - dimensional graphs of electromagnetic field of a planar set of point charges or symmetrically and uniformly charged bodies , which ignores the boundary effect , are introduced in the present electromagnetics teaching materials , which brings much incovenience for the acquaintance of the electrostatic field 然而,由于受理論計算和圖象顯示技術等因素的限制,目前的電磁學教材中,通常只能給出平面分布的點電荷系或具有較強對稱性、忽略邊界效應的帶電體的電力線和等勢線的二維平面圖,這給靜電場分布的感性認識帶來了一定不便。

Taking the evolution equation of a kerr resonator and cgle for example , we discuss pattern formation with system boundary effects . spatial modulated instability induced pattern formation in shg is discuss also . detail of linear stability analysis , numerical simulations and their consistencies are presented 首次討論了前一模型系統的邊界效應對斑圖形成的影響,給出了詳細的線性穩定性分析結果和數值實驗結果,證明邊界對斑圖的形成具有重要的影響和選擇機制。

After reviewing wavelet theory , pyramid wavelet decomposition was introduced to texture representation , we discussed the problem of optimal window size for texture feature extraction method ; the problem of local statistical feature value refinement has been studied , and a refinement method has been given which can decrease the boundary effect in calculating the feature value 在敘述小波分析理論的基礎上,把金字塔小波分解引入到紋理表示中來,討論了提取紋理特征值時選取窗口大小的問題;研究了局部統計特征值的改進問題,給出了一種對所提取的紋理特征值的改進算法,一定程度上克服了計算紋理特征時的邊界效應。

The whole dynamic finite - element analysis simplified based on 2d plane is performed to adapt engineering requires . the effect of both kinematic interaction and inertial interaction on pile - soil - structure systems within layered soil field is relatively comprehensively investigated . at the same time , the boundary effect of model , the horizontal dynamic features of piles and the nonlinear characteristic of slide and contact on the interfaces of pile - soil are considered too on the ground of no - element meshing technique applied for dimensional effect of piles in stratum - soils 建立了以適應工程需要的基于二維平面動力分析的簡化整體有限元模型;提出了能有效考慮樁尺寸效應的樁-土無單元劃分技術,在考慮了模型的邊界效應、樁基的水平動力特性和樁土界面的滑移、接觸非線性行為的基礎上,從時域內較為全面的研究了層狀土域中樁基上下部結構的慣性相互作用和運動相互作用兩種基本效應。

A new viewpoint to the albatross ' s high performance of flight near wave surface is presented in this paper . how the albatross can realize it high performance flight above waves by taking advantage of wavy effect and boundary effect is illustrated in details 研究了信天翁在波浪上飛行時的氣動力和運動,對信天翁在風浪中高效飛行的機理提出了新的見解,詳細論證了信天翁利用波動效應和壁面效應在風浪場中實現低能耗飛行的原因。

By the polygonal approximation method , a global approximation solution is constructed for the initial - boundary value problem of nonconvex scalar conservation laws with two - side boundary effect , and its convergence to the global weak entropy solution of the corresponding problem is proved 摘要使用折線逼近法,對具有兩條邊界影響的非凸單個守恒律初邊值問題構造了整體近似解,并證明其收斂到初邊值問題的整體弱熵解。

Summarize the common image pre - processing methods and point out their merits and faults . discuss the boundary effect of gaussian low - pass filtering ( glpf ) . to improve it , the zero - order gaussian filtering for an open profile ( gfo ) is used 討論了高斯低通濾波的邊界效應,利用零階開環高斯濾波算法,對高斯低通濾波進行了改進,使濾波圖像在圖像大小不改變的情況下,邊緣處的濾波效果得到明顯的改善。

But the amendment of soil properties depending on the economy and technology are still facing the restriction of boundary effects 但是依靠經濟和技術改善土壤性能,仍面臨著邊際效益的制約。

The first study principally explored the half boundary effect n children ' s proportional reasoning problem solving 研究?主要考察了兒童解決比例推理問題中的“ 1 2邊界效應” 。

The explicit formula for the line - integrated emissivity with taking into account the plasma boundary effect is presented 本文給出了這種情況下的線積分輻射率明晰表達式。

Stability of travelling waves for non - convex system of one - dimensional viscoelastic materials with boundary effect 具邊界效應一維粘彈性物質的非凸方程組行波解的穩定性

Asymptotic stability of viscous shock profiles for one - dimensional viscous conservation laws with boundary effect 一維粘性守恒律初邊值問題粘性激波解的漸近穩定性

Global weak entropy solutions for nonconvex scalar conservation laws with two - side boundary effect 具有兩條邊界影響的非凸單個守恒律的整體弱熵解

Boundary effects in quantum dots 量子點中的邊界效應

Studying perceptual boundary effects with connectionist model 運用聯結主義模型研究知覺邊界效應問題