mesoscopic 中文意思是什麼

At a definite temperature a mesoscopic circuit isnt in a determinate quantum state instead of in the mixed state ( or statistical state ). using the density matrix of the canonical ensemble, we have deduced the formulate of the quantum fluctuations of both charge and current in a non - dissipative mesoscopic coupled circuit. and the dependences of the quantum fluctuation of the circuit on its temperature have obtained

在有限溫度下，介觀電路系統實際上並不處在一個確定的量子狀態，而是處在混合態.根據正則系綜的密度矩陣導出耦合互感電路中電荷和電流的量子漲落，得到了量子漲落與溫度的依賴關系

Quantum effect in the mesoscopic lc circuits with a source

介觀電路的量子效應

The important meaning in which this direction studied has lain in establishing the connection between the material science of concrete and civil engineering, analyse the strength in terms of material microcosmic or the mesoscopic, have important meaning to understanding, know the essential law of the strength of concrete. this text divides six chapters altogether. chapter one reviewed the pore structure in nowadays domestic and international research current situation, including the concrete examines research, research of the pore structure model and the research current situations of pore structure and strength relation of the pore method, have introduced some most important achievements of structure research of pore ; chapter two narrated much yardstick of the material mesoscopic structure of concrete and principle of examining pore technology of material of concrete, and the commonly used sign parameter in discussedding the pore and material pore of quito of cement and analyse, have explained that the influence factor of mip to the result of study of pore, has pointed out the limitation in mip in the pore structure ; analyse porosity and strength relation development course of model emphatically, and has carried on comparative analysis to the existing model, has pointed out the weak point of the original model ; on the basis of " ing integrate synthetically ", propose concrete pore structure compound body model and pore physical model of systemlex body ; chapter five carried on the corresponding test data to compares to the model parameter appearing in model of chapter four with and analyses, have received k value of the characteristic of strength of matrices of reflecting according to the method to return to analysis, and calculate the influence produced on the strength of concrete in revision that can probed into the content of cement, elastic mould and surface energy, exactness of the inspection model ; chapter six is the conclusion, according to studying the survey this text to some research conclusions of the pore structure and making corresponding prospect to the structure development of pore

第一章回顧了孔結構在當今國內外的研究現狀，包括混凝土測孔方法的研究、孔結構模型的研究及孔結構與強度關系的研究現狀，介紹了孔結構研究方面的一些最重要的成果；第二章敘述了混凝土材料細觀結構的多尺度性及混凝土材料測孔技術的原理，並討論了水泥基多孔材料孔隙分析中常用的表徵參數，也說明了壓汞法測孔對研究結果的影響因素，指出了壓汞法在孔結構研究中的局限性；第三章是著重分析了孔隙率與強度關系模型的發展歷程，並對已有的模型進行了比較分析，指出了原有模型的不足之處；第四章在「綜合集成」的基礎上，提出了混凝土孔結構復合體模型和孔系統的物理模型，並模擬了該模型下由各單體並聯形成的復合體的斷裂過程，最後根據所建模型編制了相應的計算程序，可根據輸入的孔徑分佈與水泥含量等參數，實現混凝土理論強度的計算；第五章對第四章模型中出現的模型參數進行了相應的試驗數據對比分析，根據回歸分析的方法得到了反映基體強度特徵的k值，並從理論上探討了水泥含量、彈性模量和表面能的修正對混凝土強度計算產生的影響，檢驗模型的正確性；第六章是結論與展望，根據研究綜述了本文對孔結構的一些研究結論並對孔結構發展作了相應的展望。

In chapter two, by adopting a semiclassical model, we get an analytic expression of potential distribution in a one - dimensional mesoscopic tunnel junction array by solving a set of linear equations

第二章採用半經典模型，通過求解一個線性方程組得到了一維介觀鏈中電勢分佈的解析表達式。

In this thesis, by adopting a semiclassical model, we get an exact solution to the potential distribution in a one - dimensional finite uniform array of mesoscopic tunnel junctions. we discuss the features of two kinds of charge solitons in the array

我們採用半經典模型精確求解了一維有限長均勻介觀結鏈中的電勢分佈，討論了兩種電荷孤子的特徵。

Superconductivity of mesoscopic superconductor

介觀尺度超導體的超導電性

The research on 3d braided composites can be classified with the research of physical performances based on mesoscopic geometrical model and mechanical properties

摘要有關三維編織復合材料的理論分析研究歸納為：基於細觀結構幾何模型的物理性能研究和力學性能研究兩部分。

For the mesoscopic metal ring system in external magnetic field, supposing the system has a symmetry under translation in charge space, the quantum current and the quantum energy spectrum in mesoscopic metal ring are given by solving thire eigenvalue equations ; and the quantum fluctuations of the current and the energy have been calculated by the character of the minimum shift operator

摘要針對處于外磁場中的介觀金屬環系統，假設在電荷空間中具有變換的對稱性，通過求解本徵值方程給出系統的量子電流、能譜關系；利用最小平移算符的性質等，計算介觀金屬環中電流和能量的量子漲落。

For one - dimensional mesoscopic metal rings system in external magnetic field, supposing the system has a symmetry under translation in charge space, the quantum current relation in mesoscopic metal rings is given by solving the eigenvalue equation of the current, the property of quantum current have been investigated and analysed

摘要針對處于外磁場中的一維介觀環系統，假設在電荷空間中具有變換的對稱性，通過求解電流算符的本徵值方程，給出系統中的量子電流關系，分析和研究一維介觀金屬環中量子電流的性質。

A mesoscopic transmission line composed with periodic series of lc circuits is studied in this paper

摘要研究由多個單元電感電容迴路周期性連接而成的介觀傳輸線路。

Higher - order fluctuation of the dissipative mesoscopic circuit with coupled inductor

耗散電感耦合電路的高階量子漲落

In this paper, the quantization of dissipative mesoscopic circuit with coupled inducotors is given and higher - order puantum fluctuation of the charge and curret are obtained

摘要給出耗散電感耦合電路的量子化，在此基礎上研究電荷及電流在能量本徵態下的高階量子漲落。

Schrdinger cat states in a mesoscopic josephson junction

介觀約瑟夫森結中的薛定諤貓態

The results show that the quantum current and the quantum energy spectrum are not only related with the external magnetic field and the parameters of the mesoscopic metal ring, but depended on the quantization character of the charge evidently

結果表明，量子電流、量子能譜不僅與外磁場、介觀金屬環電參數有關，而且還明顯地依賴于電荷的量子化性質。

In order to study the influence of evolvement of permeation character induced by mesoscopic structural characteristics on macroscopic mechanical behavior and fracture mechanism, a nonlinear constitutive equations describing the relationship between damage of rock and seepage is proposed based on mesoscopic damage mechanics and biot seepage mechanics theory and coupling system of flow & solid in rock failure process analysis, f - rfpa2d, is developed to simulate the variation of permeability as well as coupling mechanism between seepage and stress during the initiation, propagation and coalescence of cracks in rock. this study also extends the research field of original rfpa2d

為了分析細觀結構特性變化引起滲透性演化對宏觀力學行為的影響，並進行滲流應力耦合作用下巖石破裂機制的研究，本文基於細觀損傷力學和biot經典滲流力學，建立了巖體損傷非線性本構方程和滲透率關系模型，開發出巖石破裂過程滲流-應力耦合分析系統（ couplingsystemofflow & solidinrockfailureprocessanalysis簡稱f - rfpa2d ） ，拓寬了原有程序rfpa2d的研究領域。

Simulated results provided the precondition and foundation for mesoscopic mechanical analysis in concrete

模擬結果為混凝土細觀力學分析提供了前提和基礎。

Based on the mesoscopic damage mechanics, numerical code rfpa ( superscript 2d ) was developed to simulate the spallation process of inhomogeneous medium induced by reflection of stress wave under different stress waves ( such as different durations, amplitudes and shapes ), and the behaveiour and mechanism of spallation process were numerically analyzed and discussed

摘要採用基於細觀損傷力學基礎上開發的動態版rfpa （上標2d ）數值模擬軟體，對不同沖擊載荷作用下非均勻介質中應力波反射誘發層裂過程進行數值模擬。

A class of mesoscopic damage mechanics models of concrete is put forward to understand the mesoscopic damage evolution characteristics of the high performance concrete at the level of constitutional law

摘要提出了一類混凝土細觀損傷物理模型，用於解釋高性能混凝土在本構層次上的細觀損傷演化特徵。

The acoustic emission experiments of concrete under uniaxial tension loading in whole process are conducted arid the stochastic modeling theory is introduced to determine the random field distribution parameters of the limit fracture strain of the mesoscopic damage elements

利用混凝土單軸受拉破壞全過程的聲發射實驗數據，引入隨機建模理論，確立了細觀損傷單元的極限破壞應變隨機場分佈參數。

Transport of atoms or molecules driven by laser beams through a mesoscopic device have continued to receive considerable attention in recent years

外場驅動下原子或分子躍遷的理論或實驗研究已相當廣泛和深入。