非均質性系數 的英文怎麼說

中文拼音 [fēijūnzhíxìngxìshǔ]
非均質性系數 英文
coefficient of anisotropy
  • 非 : Ⅰ名詞1 （錯誤） mistake; wrong; errors 2 （指非洲） short for africa 3 （姓氏） a surname Ⅱ動詞1 ...
  • 均 : Ⅰ形容詞（均勻） equal; even Ⅱ副詞（都; 全） without exception; all
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. We make the following assumption for when 2 is positive definite matrix, different estimators about matrix of regression coefficients and inefficiency of least squares estimate have been discussed in many documents. considered 2 is nonnegative definite matrix, this thesis derives best linear unbiased estimate of parameter matrix b and estimable parameter function kbl under the meaning of matrix nonnegative definite and the property of maximum probability of blue is investigated. next, we discuss some necessary and sufficient conditions of the equality of the lse and blue, then we derive the estimation of the deviation bet - ween the least squares and the best linear unbias estimators of the mean matrix, meanwhile a relative efficiency of lse ofb is proposed and its bound is given

    當0時，眾多文獻討論了回歸系數陣的各種估計及lse的有效性，本文考慮了當0的情形，給出了回歸系數陣b及其可估參數函數kbl的在矩陣非負定意義下的最優估計（ blue ） ，研究了它的一個最大概率性質，並且討論了最小二乘估計成為最佳線性無偏估計的充分必要條件，在此基礎上給出了均值矩陣的最小二乘估計與blue的偏差估計，定義了lse相對于blue的一個相對效率，並給出了它的界。
  2. It has been shown that whether resonant or non - resonant interaction system, the kerr effect weakens the coupling of the field - atom, shortens the cycle of quantum collapses and revivals of the atomic level occupation and makes the nonclassical correlation properties steady. kerr effects on the properties of the correlation, on the correlation intensity between the two - mode, on the photon - number distribution and on the bunching or antibunching effect of the two - mode su ( 1, 1 ) coherent states produce obviously different characters when it is changed the initial intensity of the light field. that is to say, kerr effect on the two interaction systems is accorded

    數值計算結果表明：無論是共振還是非共振相互作用， kerr效應均使原子與光場的耦合減弱，原子布居的崩塌與復甦的周期縮短，光場的非經典相關的穩定性增強；在初始光場較弱和較強兩種情況下，類kerr介質對雙模su （ 1 ， 1 ）相干態場兩模間的相關性、相關程度以及光子的聚束與反聚束效應產生的作用均有明顯的區別，即kerr效應對系統在共振及非共振作用時的影響是一致的。
  3. The studies of in - layer heterogeneity are as follows : the text depicts the characteristics of heterogeneity by calculating the coefficient of variability, kmax / k and k. max / k. min of sand layers of different sedimentous microfacies ; divides interlayer into two types, and counts their numbers, thickness, frequency and density of a single sand layer according to the characteristics of lithology and logging, finally summarizes the characteristics of interlayer distributing ; sets up five in - layer heterogeneity models and points out that the primary models are model a and c. the studies of between - layer heterogeneity are as follows : the text depicts sand layers " growth and distributing conditions by calculating the lamination factor, sandstone density and overlap coefficient ; makes certain the lithology and thickness of interlayer by the method of contrasting the typical curves

    層內非均質性研究，通過計算不同沉積微相砂體滲透率的變異系數、突進系數以及級差來說明主要儲集微相的非均質特徵；據巖性及電性特徵，將層內夾層分為兩類，統計單砂層段內夾層的個數、累積夾層厚度、夾層頻率及夾層密度，並且根據夾層頻率及密度平面分布圖統計出每層的頻率相對高值區和低值區，總結夾層分佈特徵；根據物性參數隨深度的變化趨勢建立了五種儲層層內物性非均質模式，指出研究區內以a型和c型模式為主。
  4. The macro - mechanical properties ( the elastic constants ) of the fractured rocks can be connected with the micro - parameter of crack ( crack number density )

    這個模型將微觀隨機參數（裂紋數密度）與非均勻裂縫介質的宏觀性質（彈性常數）直接聯系起來。
  5. Three finite - difference methods, i. e., stagger grid, implicit and explicit algorithms, are analyzed in detail. multi - grid algorithm is firstly introduced in elastic wave simulation, to solve for the stability problem inherent in stagger grid and implicit algorithm, also for the efficiency problem inherent in explicit algorithm, and the precision, stability and efficiency for simulation of elastic wave arc increased by multi - grid method. phase - delay method is provided to effectively absorb boundary reflection and increase efficiency for wave motion simulation, based on phase delay and amplitude decaying features along wave propagation

    在水平分層介質接收函數的波形反演研究的基礎上，本文系統闡述了非均勻介質中彈性波傳播數值模擬常用的三種有限差分方法：顯式差分、隱式差分和交錯網格法，首次將多重網格演算法應用於彈性波方程的數值模擬問題，克服了交錯網格法和顯式差分法穩定性差，以及隱式差分法計算效率低的缺點，大大提高了彈性波數值模擬的精度、穩定性和計算效率。
  6. Secondly, the third order nonlinear optical properties of these compounds are studied under the excitation of ps pulsed laser with the wavelength of 1064nm using z - scan technique, nonlinear refractive indices and nonlinear absorption coefficients are calculated according to the z - scan experiment curves of the compounds. all the three compounds have self defocusing characters and two photon absorptions. lastly, nonlinear refraction and absorption properties of these compounds are studied by z - scan technique under the excitation of ps pulsed laser with the wavelength of 532nm the self defocusing and reverse saturation absorption are found in these compounds

    根據實驗曲線計算了它們在1064nm下的三階非線性折射率和非線性吸收系數，三種化合物都具有自聚焦特性，並且在該波長下，三種化合物均具有雙光子吸收，最後，以皮秒脈沖的532nm為激發波長，採用z掃描方法，研究了三種金屬有機化合物的非線性折射和非線性吸收性質，在該波長下三種化合物仍然表現為自聚焦特性，且其吸收為反飽和吸收。
  7. The linear relation assumes between the mean characteristic parameter, sorting coefficient, variation coefficient of pore structure by rectangular method and the fractal dimension by integrated linear regression, indicating that the fractal dimensions can be used to quantitatively describe the heterogeneity of reservoirs

    用由矩法計算所得孔隙結構特徵參數均值、分選系數及變異系數與用整體線形回歸所得分形維數的線性關系說明，用分形維數來定量描述儲集層非均質性是可行的。
  8. Using the microwave selective heating property for materials, by setup equivalent equation, and first time inducing the electromagnetic field perturbation theory to the design of heating materials for substrate in mpcvd, three temperature distribution modes were established, including temperature distribution comprehensive mode of inhomogeneous plasma, temperature distribution composite mode of composite substrate materials, temperature distribution perturbation mode of composite materials, which ii provided an whole new technology route to the design of substrate heating system in mpcvd and guided the preparation of heating materials for substrate. and then the heating materials for substrate were designed and optimized to obtain large area homogeneous temperature distribution even larger than substrate holder ' s diameter. as an important part, this thesis researched the nucleation and growth of diamond films in mpcvd, systematically researched the effects of substrate pretreatment, methane concentration, deposition pressure and substrate temperature etc experimental technologic parameters on diamond films " quality on ( 100 ) single crystal silicon substrate in the process of mpcvd, characterized the films qualities in laser raman spectra ( raman ), x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), infrared transmission spectra ( ir ), atomic force microscopy ( afm ), determined the optimum parameters for mpcvd high quality diamond in the mpcvd - 4 mode system

    該系統可通過沉積參數的精確控制，以控制沉積過程，減少金剛石膜生長過程中的缺陷，並採用光纖光譜儀檢測分析等離子體的可見光光譜以監測微波等離體化學氣相沉積過程；利用微波對材料的選擇加熱特性，通過構造等效方程，並首次將電磁場攝動理論引入到mpcvd的基片加熱材料的設計中，建立了非均勻等離子體溫度場綜合模型、復合介質基片材料的復合溫度場模型及復合介質材料溫度場攝動模型，為mpcvd的基片加熱系統設計提供了一條全新的技術路線以指導基片加熱材料的制備，並對基片加熱材料進行了設計和優選，以獲取大面積均勻的溫度場區，甚至獲得大於基片臺尺寸的均勻溫度區；作為研究重點之一，開展了微波等離體化學氣相沉積金剛石的成核與生長研究，系統地研究了在（ 100 ）單晶硅基片上mpcvd沉積金剛石膜的實驗過程中，基片預處理、甲烷濃度、沉積氣壓、基體溫度等不同實驗工藝參數對金剛石薄膜質量的影響，分別用raman光譜、 x射線衍射（ xrd ） 、掃描電鏡（ sem ） 、紅外透射光譜（ ir ） 、原子力顯微鏡（ afm ）對薄膜進行了表徵，確立了該系統上mpcvd金剛石膜的最佳的實驗工藝參數。
  9. This paper uses quantitative evaluation method and principles of diagenetic reservoir facies, gray theory, matches and picks up petrophysical parameters, analyzes the comprehensive effect of evaluation parameters on diagenesis, establishes parameter index and automatic analysis and processing method for diagenetic reservoir facies evaluation with gray theory, integrates gray system theory and multi - information, and provides an important method and basis for reservoir description, heterogeneity study, oil well productivity analysis and screening favorable oil blocks

    摘要根據成巖儲集相定量評價分析方法和準則，利用灰色理論思維和手段，匹配、擬合和提取儲層物性參數，分別以評價參數對成巖作用的綜合效應進行分析，建立起灰色理論成巖儲集相綜合評價參數指標和自動分析處理方法，實現了灰色系統理論集成和多種信息綜合，為油藏描述、儲層非均質性研究、油井產能分析和含油有利區塊篩選提供了重要方法和依據。
  10. Add up to the oil deposit carries on parameters such as year, month output, daily output and oil pressure moisture content etc, and uses the man - made nerve communication method to analyze the nonhomogeneity characteristic of seam cave mould oil deposit system

    油氣從地層向井筒的動態滲流過程，直接受儲層各向異性影響。對油藏進行年度、月產量、日產量、油壓含水率等參數統計，利用人工神經網路方法分析縫洞型油藏系統的非均質特徵。
  11. With the method of the lie group transformation, the symmetry of the equation governing one dimensional finite strain consolidation is discussed and, from the point of the symmetry, the feasibility to obtain the analytical solution of these nonlinear partial differential equations is discussed. where - after exact or approximate analytical solutions focused on different consolidation problems are obtained, these including : under some assumptions of relations of the void ratio with coefficient of permeability and effective stress, the method of lie group transformation is applied to solve the non - linear partial differential equation of large strain consolidation of homogenous saturated clay soil in semi - infinite domain with the consideration of the material and geometrical nonlinearity during consolidation procession. the implicit exact solution without considering the effect of self - weight of soil is obtained

    運用lie群變換方法討論了一維大應變非線性固結方程的對稱性，以及在該對稱性的意義下求解這類非線性偏微分方程解析解答的可能性，並就大應變非線性固結問題的多種情況求得了其完整的或者近似的解析解答，具體包括：基於有效應力與孔隙比以及滲透系數與孔隙比之間的關系的一些假定，採用李群變換求解考慮材料非線性和幾何非線性的半無限均質土體大變形固結非線性偏微分方程，得到了一個不考慮自重固結的完全解析解。
  12. 3 ) the sandbody distribution, physical properties, pore structure and heterogeneities are affected by the microfacies. at the center part of underwater distributive river course, the petrophysics and physical properties are both better than that at the edge of the microface. 4 ) the chang 61 2 - 3 substrata and the substrata of chang 62 " member which show the better porosity, permeability, and better pore structure ; display lower permeability variation coefficient, dart - coefficient and contrast - coefficient and good connecting sandbody so the horizontal heterogeneities is weaker ; whereas manifest stronger inner - heterogeneities due to the numerous intermediates ; present stronger inter - heterogeneities caused by the greater frequency of sandbody

    長6儲層中長6 _ 2 ~ （ 1 - 3 ）和長6 _ 2 ~ 1砂層中的各個小層的孔隙度、滲透率值、含油性較好；平面非均質性較弱，表現為級差、突進系數、變異系數較低且砂體的連片程度高，鉆遇率和連通系數較高；與此同時，層內非均質性較強，表現為垂向上夾層的數目較多，厚度較大；層間非均質性也較強表現為分層系數較高。
  13. 1. upon brief reviewing current mathematical and physical models and mechanisms for electrorheological effect, the theoretical analysis of the dielectric relaxation of electrorheological fluids and the frequency - inducing characteristics for electrorheological effect are conducted. based on statistical thermodynamic analysis and osmotic pressure calculating of an electrorheological fluid complex system, phenomenological theory is adopted to evaluated phase reparation characteristics. thus critical factors corresponding to experimental results are introduced

    在簡要評述現有電流變效應模型及機理的基礎上，按非均勻介質對雙相復合懸浮液的電流變效應進行理論分析，研究了電流變效應頻率誘導特性；基於復合系統滲透壓的計算，採用統計熱力學唯象理論，討論了電流變效應的相分離特徵，獲得了與實驗吻合的臨界參數；首次將定向滲流模型應用於電流變體臨界體積濃度的分析，得出一個描述電流變流體特徵而不隨外加電場變化的臨界體積百分數為0 . 37 。
  14. Secondly, analytical solution is developed for one - dimensional non - homogeneous consolidation of one - layer soil and double - layered soil respectively based on the assumption that the modulus of compressibility of soil varying linearly along depth. furthermore, the semi - analytical solution for one - dimensional consolidation problem of layered non - homogeneous soft clay stratum is presented and programmed. by using the analytical and semi - analytical solutions, the one - dimensional non - homogeneous consolidation behavior of one - layer soil and that of multi - layered soil are investigated in detail

    其次，分別得到了土體壓縮模量隨深度線性變化的單層和雙層非均質地基一維固結解析解，以及滲透系數和壓縮系數隨深度任意變化的成層非均質地基一維固結半解析解及其計算程序，並以滲透系數和壓縮系數是深度的多項式函數的非均質地基為例對單層、多層非均質地基的一維固結性狀進行了詳細研究。
  15. ( 4 ) research on considering stress history and lateral deformation in 1 - d method for embankment settlement calculation. for av e ~ p method, the modification coefficient m, from influence of soil stress history is put forward. then, aimed at the e ~ lgp method and so on, by lots of nonlinear fem calculation, the different settlement revised formulas m2 are given for uniform and non - uniform roadbed cases

    針對以a _ v 、 e p法等，提出了可考慮土體應力歷史影響的修正系數m _ 1式子；接著，針對e - lgp法或進行了應力歷史影響修正後的a _ v 、 e p等，通過大量非線性有限元計算，分別給出均質路基和非均質路基的考慮土體側向變形影響的沉降修正系數m _ 2式子。
  16. Besides the theoretical analysis, we also numerically studied the relation between the beam irregularity and b integral for a special four - pass amplifying system. based on these calculations, a " red line " has been set up for the safety of the system. in addition, the variation of beam irregularity with the size of filter ' s hole has been studied

    在理論分析的基礎上，我們用數值模擬的方法研究了一個具體的四程放大系統中光束非均勻性和b積分的關系，以此確定出了系統運行的「紅線」 （安四川大之戶下員d匕論文全運行警戒線） ;同時探討了濾波小孔尺寸與光束質量的關系。
  17. Because the internal structure of high - speed long - range flying objects ( hslrfo ) is so complicated and the mass distribution is extremely non - uniform, the precision of the mass characteristic parameters obtained from theoretical calculation is not enough to be applied to the practical measurement and control. the special test system for the mass characteristic parameters of high - speed long - range flying objects, therefore, is in great need and it is also necessary to study its performance

    由於高速遠程飛行物體的內部結構非常復雜，質量分佈不均勻，在科學研究過程中進行的理論計算得到的質量特性參數與其使用要求相差甚遠，基本不能作為計算和測控參數使用，因此必須研製專用的測量系統，並對測量系統的測量特性進行研究。
  18. Based on the fundamental theory of dynamics of soil moisture and the condition of water storage pit irrigation, numerical modeling of soil moisture movement of single water storage pit in heterogeneous soil is established. adi ( alternating direction implicit method ) and gauess - seidel iterative method are used to solve it. by using the simulated value of modeling, the relation of water injection volume and maximum horizental distance of moisture frontal are concluded. according to the relation, interval of pits are derived. then, after analyzing the infiltration characteristic of soil moisture under the condition of interference infiltration in multi storage pit, numerical modeling of soil moisture movement of multi water storage pit in heterogeneous soil is established, and its numerical solution is also acquired

    利用adi （交替方向隱式差分法）結合gauess ? seidel迭代法對模型進行數值求解。利用模型的計算結果得出了單坑注水量與濕潤鋒最大水平推進距離之間的關系，並據此確定了坑距。在此基礎上，通過對多坑干擾入滲條件下土壤水分入滲特性進行分析，太原理工大學碩士研究生學位論文建立了蓄水多坑非均質土壤水分運動數學模型，並對其進行數值求解。
  19. Firstly, as a forward problem is solved for each iteration of ga reconstruction, calculating the electric field for a given distribution permitivity and driving source - this aspect will be treated with more detail. the thesis uses finite element method ( fem ) to solve it, because fem can conveniently handle inhomogeneous dielectric, converge well, and spare computing time by compacting the matrix

    本文首先建立了介電成像的數學模型，採用有限元方法求解正問題，有限元方法的優點在於能方便地處理非均勻介質、具有良好的收斂性、可以壓縮系數矩陣而節省計算時間，這有利於應用遺傳演算法進行優化。
  20. This thesis tries to modify the perfect set of waveguide mode theory and gives several examples of its application. firstly, from the functional analysis, the eigenfunction series of vectorial partial differential operator is studied. the property of complete space is gotten

    本文首先從泛函分析的方法出發，研究了矢量偏微分運算元本徵函數系的性質，得到了矢量偏微分運算元正交完備歸一化本徵函數的存在證明，研究了maxwell方程組的情況，證明了電磁場在均勻和非均勻介質條件下的正交本徵函數系的完備性質。
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