E - electromagnetics 中文

electromagnetics n.〔作單數用〕電磁學。

electromagnetism
Based on the conditions of electromagnetics principle , of actuation effect of piezoelectric materials , of the mechanical balance equations , of the geometry equations . , of the boundary conditions of the piezoelectric active member and the application of finite element method , the dynamic equation of piezoelectric active member is formulated 本文從電磁學原理，壓電方程，機械力的平衡方程和幾何方程出發，利用主動構件的邊界條件，用有限元方法得到了主動構件的動力學方程。
Firstly , the paper analyze six series of new textbooks facing the twenty - one century and several representational american teaching material , then compare chinese teaching material with america teaching material on electromagnetics and neoteric physics , exercises and examples , the instance in introducing modern educational technology 文章分析了六套我國面向二十一世紀新工科物理教材，同時分析了幾套較有代表性的美國教材，將中美教材中電磁學、近代物理、習題和例題進行了比較，并比較了中美引入現代教育技術情況。
In 6 . 635 , topics covered include : special relativity , electrodynamics of moving media , waves in dispersive media , microstrip integrated circuits , quantum optics , remote sensing , radiative transfer theory , scattering by rough surfaces , effective permittivities , random media , green ' s functions for planarly layered media , integral equations in electromagnetics , method of moments , time domain method of moments , em waves in periodic structures : photonic crystals and negative refraction 本課程所覆蓋的論題包括：狹義相對論、運動媒質的電動力學、色散媒質中的波、微帶集成電路、量子光學、遙感、輻射傳輸理論、粗糙表面上的散射、有效介電系數、隨機媒質、平面層狀媒質的格林函數、電磁學中的積分方程、矩量法、時域矩量法、周期結構中的電磁波：光子晶體和負折射率。
The novel three - dimensional finite - difference approximations of mur ' s absorbing boundary conditions are also presented in frequency - domain . then the ddm based on fdfd is investigated in the applications of three - dimensional electromagnetics problems . and it is used to analyze the leaky wave antenna based on image nonradiative dielectric ( nrd ) guide 最后，闡述了maxwell方程組和劃分區域的despres傳輸條件的頻域差分格式建立，在截斷邊界上構造了三維頻域mur條件的差分近似，探討了基于頻域有限差分的區域分解法在三維電磁問題中的應用實現，并將該算法用于分析一種基于nrd波導結構的漏波天線。
To find out the propagation theory that suits to roads in our country , a method of em finite elements is discussed in this dissertation . the application of finite elements method ( fem ) in electromagnetics has a history of 30 years . the prosperous future of this method stems from presses in the applications and developments of projects , such as equipment enlargements , equipment integration , and diversity of products 有限元法電磁計算的廣泛應用及廣闊的發展前景，首先來自于工程應用發展的壓力，如產品制造規模的不斷擴大，即設備的大型化；產品設計制造的復雜性和難度的不斷增加，即設備的集成性；對產品性能指標要求的不斷提高，即設備的高技術含量；以及產品應用范圍的不斷擴充，即產品種類的多樣化。
Computational electromagnetics have been developed rapidly with the development of the compute hardware and software , and various numerical methods for electromagnetic field simulation are proposed in years . but these methods have difficulty in the aspects of computational time , required memory and accuracy . in addition , with the depth of the acquaintance with the physical problems , people realize that it is also important to keep some features of the system while they pursue the accuracy of the algorithm 近年來，計算電磁學伴隨著計算機硬、軟件的飛速發展得到迅速發展，各種電磁場數值解法層出不窮，但這些方法經常面臨計算時間和存儲及計算精度等方面的困難，而且隨著人們對物理問題認識的深入，意識到在追求算法高精度的同時還應力求保持原系統的某些性質。
For the requirements of remote information management and mobile business , the microwave radio frequency identification ( rfid ) technology is studied in this dissertation , with the automatic train identification system of the national ministry of railroad as a background . the fundamentals associated with rfid system in the field of electromagnetics and communications are summarized and the technical essence is pointed out at the viewpoint of system design 為適應遠程信息化網絡管理和移動商務的需求，本文以我國鐵道部鐵路車號自動識別系統為研究背景，系統總結了射頻識別( rfid )系統的電磁學基礎和通信學原理，從系統的觀點揭示rfid技術的實質，對微波rfid技術進行了深入的研究。
In order to improve the efficiency of the permanent canned - motor pump , and decrease electromagnetics effect of the liners in designing the permanent magnet canned - motor pump . the main parameters of the permanent canned motor pump have been calculated with the finited element method , the eddy - current of the liners also have been studied deep and systematically in this dissertation 為提高永磁屏蔽電泵的效率，減少永磁屏蔽電泵設計中屏蔽套電磁影響問題，本文對永磁電泵電磁場進行了有限元分析，計算了主要參數，對屏蔽套的渦流問題進行了分析研究。
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。
The analysis of electrically large complex cavity is an important topic in the field of computational electromagnetics . it is meaningful to the development of stealth and anti - stealth technology , electromagnetic compatibility of electronic equipments as well as the design of some relevant microwave devices 電大尺寸復雜腔體的電磁特性分析是計算電磁學中重要的研究內容，它對飛行器隱身與反隱身技術研究、電子設備電磁兼容性能分析以及有關微波器件設計具有重要意義。
Abstract : this paper proves that substantially the concept of space - time in the special theory of relativity is equal to that in electromagnetics ; the concept of space - time in classical mechanics is equal to that in newton ' s second law of motion in essence . also , it brings up a new way to develop a new concept of space - time 文摘:證明了狹義相對論的時空觀本質上是“電磁學的時空觀” ;經典力學的時空觀本質是“牛頓第二定律的時空觀” .并提出了發展一種新的時空觀的方法
Recently , clusters with distributed memory are popular for parallel computing systems , and mpi is the actual standard of message passing programming . therefore , the application of clusters based on mpi to computational electromagnetics is studied in this dissertation . the methods are mom based on the integral equation method in conjunction with the preconditioning technique to speed up the iterative solution and a matrix order reducing method , namely the characteristic basis function method ( cbfm ) 目前,分布式內存的集群系統是并行計算系統的主流系統, mpi是消息傳遞編程實際上的標準,本文即研究了基于mpi的集群技術在計算電磁學中的應用,采用的方法主要是基于積分方程的矩量法,并結合了加速迭代的預條件技術以及一種矩陣降階方法? ? cbf方法。
In order to pay more attention to that and find some measures to deal with such problems , we have made prepared to thrash out some ambiguities in electromagnetics and finish their cai , and hoped that this study can become a kind of necessary complementarity and expanse for the curriculum teaching of electromagnetics 針對這些問題和現代學生普遍認為物理難學、太抽象的情況,提出了“對電磁學教學中若干疑難問題的解析及cai的實現” ,使其成為電磁學課程教學的必要補充和拓展。
This paper proves that substantially the concept of space - time in the special theory of relativity is equal to that in electromagnetics ; the concept of space - time in classical mechanics is equal to that in newtons second law of motion in essence . also , it brings up a new way to develop a new concept of space - time 證明了狹義相對論的時空觀本質上是“電磁學的時空觀” ;經典力學的時空觀本質是“牛頓第二定律的時空觀” .并提出了發展一種新的時空觀的方法
The fft of helmholtz equation on the regular domain is studied . and the multifrontal algorithm is used to solve the matrix equations in computational electromagnetics . finally , the finite - difference approximate forms of maxwell equations and the despres transmission condition are discussed 為了充分提高算法的計算效率，研究了規則區域上helmholtz方程的fft快速算法，以及有效地將多波前算法引入計算電磁學領域用于求解差分稀疏矩陣方程。
The variational theory in electromagnetics and its application in computing the characteristic impedance of conformal coaxial transmission lines are presented in this thesis . input impedance of wire antennas is also computed with a hybrid method of variational principles and the finite - difference time - domain method 本文主要研究了電磁變分理論及其在共形同軸傳輸線特性阻抗的求解和與時域有限差分法相結合求線天線輸入阻抗等方面的應用。
In the electromagnetics teaching materials , the most basic solution method of the electrostatic field is the electric field principle of superposition . this method is employed widely , but regarding some complex boundary - value question , it only obtains the formal solution 在通常的電磁學教材中,最基本平面場的求解方法是電場迭加原理,這種方法雖然應用廣泛,但對于一些復雜的邊值問題,求得的只是形式解。
In chapter one , first we introduce the importance and history of the numerical computational electromagnetics , then introduce status and some researched results of the two methods . at last we introduce the researched results about the two methods in our paper 在第一章概論中首先闡述了電磁場數值計算的發展和它的重要性，簡單回顧了我們研究的兩種時域計算方法的發展歷史和成果，介紹了本文研究的主要內容。
After the preliminary trials and practice , the authors have proposed some new ideas and teaching strategies in implementing bilingual teaching in thermotics and electromagnetics in order to further promote bilingual education in colleges whose focus is directed at teaching 通過對普通物理（熱學、電磁學）雙語教學的探索和實踐，本文旨在提出在教學型院校進一步推進雙語教學的思路和對策。

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electromagnetics

electromagnetics n.〔作單數用〕電磁學。

electromagnetism