非均勻電介質 的英文怎麼說

中文拼音 [fēijūnyúndiànjièzhí]
非均勻電介質 英文
non-uniform dielectric
  • 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
  • 勻 : Ⅰ形容詞（均勻） even Ⅱ動詞1. （使均勻） even up; divide evenly 2. （分出一部分） spare
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  1. The ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time. in order to improve the communication quality of the shortwave that depends on the ionosphere, we should have aknowledge of the current condition of the ionosphere in real time. the backscatter sounding of high frequency can diagnose the real - time channel characters for shortwave communication or hf radar, which is great assistant to shortwave communication and hf radar

    電離層是隨機時變，各向異性，非均勻、色散的復雜介質。為了保證依賴于電離層進行的短波通信質量，必須了解電離層的實時狀態信息。高頻返回散射探測可以實時監測與短波通信或高頻天波雷達相關的天波傳播通道的狀態，對短波通信和天波雷達工作起了重要的輔助作用。
  2. Computation of magnetotelluric response in the 2 - d inhomogeneous media

    二維非均勻介質中大地電磁響應的計算
  3. First, in virtual of identification of flaws is a typical of in - verse problems, proceeding from time - harmonic electromagnetic maxwell ' s equa - tion and helmholtz equation, the uniqueness and existence of direct scattering problems including the numerical algorithms of diverse of boundary conditions is given. second, the uniqueness and existence of inverse scattering problems and the theory of ill - posed integral equation are briefly looked back upon. finally, indicator function method for boundary identification is set up under all kinds of boundary conditions for inverse scattering of homogenous and inhomogenous objects, meanwhile, the proof of possibility for near - field measurements and nu - merical simulation are given

    由於缺陷的識別是一類典型的反問題，因而首先從時諧電磁maxwell方程和helmholz方程出發，具體地闡述了求解正散射問題的有關方法，包括各種（夾雜）邊界條件下的數值解法，就解的存在性唯一性給予了肯定的回答；隨后對逆散射問題的理論作了簡短的回顧，包括解的唯一性以及非線性不適定積分方程的處理等；然後對均勻介質和非均勻介質的逆散射問題建立了在各種邊界條件下的邊界識別的指示函數方法，鑒于近場數據獲得的重要性，對近場測試時邊界識別的方法給予了相應的證明，並且實現了數值模擬。
  4. 3. the solution for the distribution of potential internal the dielectric ellipsoid has been obtained by means of ellipsoidal coordinates, and has obtainted the expression of the polarization field strength in the dielectric ellipsoid, calculated the included angle value of polarization vector and the external field vector, making programe to compute to get the relation shetch between the included angle value of polarization vector and the external field vector and we have discussed the result and hold that the direction of polarization field strength with that of the external field don ’ t always strict antiparallel

    二、討論了帶電粒子在均勻電磁場中的相對論運動規律。三、討論了在均勻電場中電介質橢球體的極化規律。證明了電介質橢球內的極化場強方向與外電場方向並非嚴格相反，只有當外電場與電介質橢球的某一主軸平行或者當橢球體三半軸的大小都相等時，極化場強方向與外電場方向才嚴格相反。
  5. In addition, from the angle of removing the negative gain media in the cycling gas and the excitation - counteracting media, we put forward the eliminating the impurity by using of the non - uniform stationary electrical field and the swirling electrical field so as to improve the effective excitation of the laser media

    本文還從清除循環氣體中負增益介質以及消激發介質的角度來改善激光介質的有效激發，提出了使用非均勻靜電場和渦旋電場清除雜質的方案。理論分析與部分實驗驗證表明，這兩種方案都能有效地清除混合氣中的雜質。
  6. 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。
  7. 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 。
  8. With these three calculated parameters, the attenuation factor value of the radio wave propagation in the earth ' s crust is calculated by the ways of plane wave method and communication formula method, and the value of the leakage on the ground is also calculated by the inhomogeneous medium ' s field analysis method

    據此三種參數，利用平面波法和通信公式法計算出電波在地殼中傳播的衰減因子值，以及利用非均勻介質的場分析法計算出地面場強泄露衰減因子值。
  9. 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。
  10. 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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