electromagnetic equation 中文意思是什麼

electromagnetic equation 解釋
電磁方程式
  • electromagnetic : adj. 電磁的。
  • equation : n. 1. 平衡,均衡;平均,相等。2. 【數學】方程式,等式。3. 【天文學】(時)差;均分,等分。4. 【化學】反應式。
  1. Electromagnetic wave equation in anisotropic media

    各向異性介質中的波動方程
  2. The first place, though analyzing between the sound approximately equation and the electromagnetic wave equation, we get the similarities in the form of equation. based on these, we can easily take the migration theories and methods of reflection seismic into gpr ' s

    本論文的核心內容包括: ( 1 )通過對聲波波動方程和電磁波波動方程對比分析,根據它們波動方程在形式上的一致性,建立將廣泛應用於地震勘探中的偏移技術引入到gpr數據處理中的理論基礎。
  3. The forward model of gpr electromagnetic wave propagation in pavement system is developed based on maxwell equation in electromagnetic theory

    基於電磁波理論的基本原理,從maxwell方程著手,建立了雷達電磁波在路面結構體系中傳播的正演模型。
  4. Then the nonlinear coupled electromagnetic and electron motion equations were obtained from the lorentz equation. and numerical calculation and analysis of cold cavity by pic software were applied to analyze the both hot and cold dispersion characteristic of this waveguide

    接下來,從電子運動方程出發得到了自洽非線性方程組,通過一階線性近似導出了螺紋波導中注波互作用色散關系,從中分析該波導超寬帶特性。
  5. 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。
  6. Boundary integral equation of electromagnetic field with line current element of external source

    存在外源線電流元的電磁場邊界積分方程
  7. Because of the large advantage in the analysis of electromagnetic scattering and radiation problem, using the time domain integral equation ( tdie ) solving every structure of objects ’ scattering become to an important direction in computation electromagnetics, but the classical mot ( marching - on - in - time ) - based tdie solvers have a drawback : the late time stability problems

    由於時域積分方程對于分析電磁散射、輻射問題有著無可比擬的優勢,利用時域積分方程求解各種結構體目標散射成為計算電磁學領域中一個非常重要的方向。但是傳統的時間步進法求解時域積分方程存在致命缺點:后時穩定性不好。
  8. This paper, firstly, introduces some basic nondestructive tests, shows the background of the subject about the test for the defect of sucker rod, by comparing with the other nondestructive tests, proves the advantage of eddy - current test, then beginning with maxwell equation in electromagnetic field theory and combining with the idea model of defect, this paper proves that the feasibility of eddy - current test technology in multi - parameter and multi - frequency which applied in the test for for the defect of sucker rod

    本文首先介紹了無損檢測技術的幾種典型方法,並給出了抽油桿裂紋檢測這個課題的背景,通過同其它幾種無損檢測技術的比較,給出了電渦流技術的優越性。然後從電磁場理論中的麥克斯韋方程出發,結合裂紋的理想模型,從理論上證明了電渦流多頻率多參數檢測技術在抽油桿裂紋檢測中的可行性。
  9. Theory research based on overrelaxation : according to electromagnetic theory fundamental equation, boundary condition is analyzed, iterative formula is deduced, overrelaxation factor is selected and calculation program is composed. through calculation on varied parameter, a group of suitable parameter is found out. in the third chapter : the conclusion of theory research is verified through experiment

    理論研究使用超鬆弛迭代法:根據麥克斯韋電磁理論基本方程,建立了磁場浙江大學博士學位論文:行程傳感液壓缸基礎技術的研究分析數學模型,分析了邊界條件,推導了迭代公式,確定了鬆弛因子,編制了運算程序,通過對不同參數的試算,找到了一組有規律參數之間的關系。
  10. The common methods for analysis of electromagnetic modeling have been reviewed firstly, the mlfma based on integral equation method and its potential deficiency is briefly presented, and the fipwa is introduced then

    本文首先回顧了電磁建模的常用分析方法,介紹了基於積分方程方法的多層快速多極子方法,及其某些潛在的缺陷,引出本文研究的快速非均勻平面波演算法。
  11. Based on the viewpoint of interaction between waves in plasmas, the partial differential equation that causes the spectral lines broadening has been deduced from radiation transfer equation of high - frequency electromagnetic waves in plasmas. the numerical solution has been obtained by using the fortran program we compiled. we concretely calculated the spectral lines widths of and fraunhoferx 3704 in corona, fj / a4923. 9 in dwarf nova oy car and f. / a4934 in the variable star rr lyrae

    本文從等離子體波與波相互作用觀點出發,由高頻電磁波輻射轉移方程導出了引起譜線寬度變化的偏微分方程,編寫fortran程序求解偏微分方程的數值解,具體計算了日冕綠線f _ exiv 5303和夫朗禾費線3704 、矮新星oycarf _ eii 4923 . 9 、天琴rr型變星f _ ei 4934的譜線加寬值,對以上各譜線加寬中的等離子體致寬效應作了初步計算。
  12. 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。
  13. In order to utilize the atmospheric duct phenomena, and to make the electronic reconnaissance facilities more effective and the status of battlefield more advantageous, on the basis of classification of the atmospheric duct, first the model for evaluating the effective detective zone of electronic reconnaissance facility is established, then the numerical value simulation method of electromagnetic wave propagation under the condition of surface duct calculated with parabolic equation and fourier arithmetic is presented, and finally the influences of atmospheric duct on electronic reconnaissance facility is analyzed

    為充分利用大氣波導條件,發揮電子偵察設備效能,使戰場態勢向有利於己方方向轉化,在介紹大氣波導分類的基礎上,建立評估電子偵察設備的有效探測區的模型,給出用拋物線方程及其分佈傅里葉演算法計算電磁波在表面波導條件下傳播的數值模擬方法,並分析了大氣波導對電子偵察設備的影響情況。
  14. To obtain the parameters of measuring magnetic circuit structure, theory research is done. theory research based on overrelaxation : according to electromagnetic theory fundamental equation, boundary condition is analyzed, iterative formula is deduced, overrelaxation factor is selected and calculation program is composed

    並根據麥克斯韋電磁場基本理論建立了磁路結構模型,使用超鬆弛迭代法對測量磁路結構的磁場進行了理論分析,得到了適于用在行程傳感液壓缸行程測量的磁路參數之間的關系。
  15. On the base of mathematical domain decomposition method ( ddm ), this paper investigates systematically the quasi - static problems based on laplace equation, the transmission problems in waveguide based helmholtz equation and the three - dimensional scattering and radiation problems based on maxwell equations. the theoretical system is built for the further exploration of ddm in electromagnetic problems

    本文在區域分解法已有的數學基礎上,從基於laplace方程的準靜態問題,到基於helmholtz方程的波導傳輸問題以及基於maxwell方程的三維散射輻射問題,系統地探討了該方法在電磁領域中的應用,為進一步擴展應用研究建立了理論體系。
  16. Finally, the wave equation of the electromagnetic field of this kind damper is derived from the maxwell ' s equation. the magnetic flux density at the boundary is assumed to be harmonic, so the analytical result of the wave equation is solved. when the rotor rotates, eddy currents flowing inside the conducting material field are caused

    最後,應用ahrens的電磁軸承簡化模型,從maxwell方程出發推導了應用於本文所述的被動式電磁阻尼器的波動方程,並用傅立葉級數把矩形磁場展開的諧變磁場作為磁場的邊界條件,通過求解波動方程得到磁場的解析解,從而計算了阻尼器對轉子的電磁力和由渦流引起的切向力產生的阻尼器附加功耗。
  17. Using direct current generator principle, set up electromagnetic limit speed auto - rotate nozzle stable state operate circuit, mechanics, energy equation

    應用直流發電機原理,建立電磁限速的自旋轉噴頭穩態運行時的電路、力學、能量方程。
  18. According to the radar - absorbing model, the performance of rams of various absorber - volume - percentage with various frequency and the radar obsorbing performance of which in various thickness is predicted. according to the radar - absorbing model, the prerequisites of microwave electromagnetic parameters and the border curves for a single - layer homogeneous absorbing coating backed by a perfectly conducting plate to produce zero specular reflection are obtained by the steffensen speedup approach to solve the complex transcendental equation

    以吸波模型為依據,用計算機求解了單層均勻各向同性吸波材料的阻抗匹配條件,通過數值模擬得到了吸波材料阻抗匹配時電磁參數邊界曲線的數值模擬等式和阻抗不匹配時寬帶吸波材料電磁參數的合理搭配規則和頻散特性。
  19. Maxwell ' s electromagnetic equation

    麥克斯韋電磁方程式
  20. After analyzing the mathematical model of wind turbine and doubly - fed induction generator, a schematic is given about the power flow in the wind turbine and generator and a static equivalent circuit is shown as well. then, through the reference frame transform, the electromagnetic equation, dynamic equivalent circuit, and vectorgraph of doubly - fed generator can be gotten in the dq reference frame. in virtue of the general dynamic equivalent circuit, it produces a asymmetry equivalent

    本文在對風力機和雙饋電機進行了數學分析后,給出了功率在風力機和雙饋電機中的流動過程圖解,同時給出了雙饋電機的穩態等效電路;然後,經過坐標變換,進一步得出了同步坐標系下雙饋電機的基本電磁方程、功率方程、動態等效電路和綜合矢量圖,並藉助通用動態等效電路的形式,得出了便於定子磁鏈分析的不對稱等效電路。
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