晶體磁學 的英文怎麼說

中文拼音 [jīngtǐcíxué]
晶體磁學 英文
crystallomagnetism
  • 晶 : Ⅰ形容詞（光亮） brilliant; glittering Ⅱ名詞1. （水晶） quartz; （rock） crystal 2. （晶體） any crystalline substance
  • 體 : 體構詞成分。
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 學 : Ⅰ動詞1 （學習） study; learn 2 （模仿） imitate; mimic Ⅱ名詞1 （學問） learning; knowledge 2 （學...
  • 晶體 : [晶體學] crystal; vitrella; crystal body; crystalloid; x-tal
  1. Various chemical strategies have been introduced to the system to affect the dynamics of reaction, and thus, to adjust the nucleation and growth process. by using appropriate complexing agents as controlling reagents and adjusting the reaction temperature, both morphologies ( nanorods and fractals ) and structural phases ( zinc blende or wurtzite structures ) of cdse nanocrystals can be easily controlled. a precipitate slow - release controlled method was designed in the synthesis of manganese selenides

    在化學調控合成思想的指導下，運用已取得的調控合成的成功經驗，利用mnseo3沉澱緩釋放出mn2 +源和硒源，在調節反應溫度的基礎上，于同一反應體系成功地合成了mnse2和mnse的立方體和球形微米晶，實現了產物組成和維度的調控，並對它們的磁行為進行了研究。
  2. Ceo22 is used as optical materials, polishing agents, ultraviolet absorption materials, the cleaning catalyst of car ' s waste gases, chemical decolorant of glass, radiation - resisting glass permanent magnet, electronic ceramics etc. if it is processed into nanoparticles, it will exhibit some novel properties led to varied applications. for example, ceo22 nanocrystal is a better promoter of cytochrome c and the stabilizer of zro22 ceramics. because of its high index of refraction and good stability, it is used to produce reduced reflection film

    Ceo _ 2是一種廉價而用途極廣的材料，如用於發光材料、拋光劑、紫外吸收材料、汽車尾氣凈化催化劑、玻璃的化學退色劑、耐輻射玻璃、永磁體、電子陶瓷等，其納米化后將出現一些新的性質及應用，如ceoz納米晶是細胞色素c的良好的催進劑，還用作zro :陶瓷的穩定劑，由於ceo :折射率高，穩定性好，常用於制備減反射膜等。
  3. Branch of science that deals with the study and application of electron devices, e. g., electron tubes, transistors, magnetic amplifiers, etc

    關于電子器件（例如電子管、晶體管、磁放大器等）的研究與應用的一門科學分支。
  4. All my samples with good orientation are prepared by rf sputtering. then we invest surface morphology and crystal structure, optical and electrical properties of zno films by afm, xrd, hall testing, ultraviolet - visible spectrum photometer and xps et al. zno films are fabricated on gaas substrate

    本文用射頻反應磁控濺射制備了高度c軸擇優取向的zno薄膜，採用原子力顯微鏡（ afm ） 、 x射線（ xrd ） 、 hall測試儀、紫外?可見分光光度計和x光電子能譜等分析測試手段，研究了樣品的表面形貌、晶體結構、光學和電學性能等。
  5. Obtaining structure and function of proteins is one of the main purposes of research in biology, but determining three - dimensional structure of protein by means of x - rays crystallography and nuclear magnetic resonance spectroscopy, and research in protein structure by the way of biochemistry, already can ’ t adapt the need of the rapid increase of protein sequence

    獲取蛋白質的結構和功能是生物學研究的重要目的之一，但是使用x光晶體衍射和核磁共振技術等實驗手段測定蛋白質的三維結構，以及使用生物化學方法研究蛋白質的功能時效率不高，已經無法適應蛋白質序列飛速增長的需要。
  6. The performance of the pbg antenna using the new pbg cover together with a pbg substrate is studied by the fdtd method together with the pml boundary treatment. the numerical results show that a more focused beam radiated in the broadside direction is achieved. the gain of the pbg patch antenna in the forward direction is improved by about 6 db. the radiation directivity is improved significantly and reaches 11. 5 db, which is 0. 4 db less than the maximum value that is allowed physically for this size of the antenna ( this difference is about 4. 1 db less than the difference achieved by thevenot et al.,

    用fdtd方法並結合pml吸收邊界條件，我們對加了這種新的覆層結構並且基底鉆孔的復合結構電磁（光子）晶體貼片天線的性能進行了研究，結果證明加了這種新的電磁晶體覆層結構以後，天線的波束收攏很多，並且向前輻射的增益大大提高，與普通天線相比，天線的e面和h面方向圖上向前輻射的增益均提高了約6db ，另外，該復合結構天線的方向性系數達到了11 . 5浙江大學博士學位論文db ，與該物理尺寸天線的方向性系數的理論極限值（ 11 . 9db ）相差0 . 4db ，該差值比thevenot等人設計的電磁晶體覆層天線的相應差值減少了約4 . 1db ，比qiu等人設計的電磁晶體天線的相應差值減少了約1
  7. 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。
  8. Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail

    針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向，本論文重點做了以下幾個方面的工作，目的在於提高dtc系統的綜合性能： （ 1 ）提出一種新型的速度磁鏈觀測器，新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度，並且根據popov超穩定性理論推導出轉速的新型自適應收斂律； （ 2 ）改善系統的低速運行性能，主要從提高低速時對定子磁鏈的估計精度入手，提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數； （ 3 ）採用數字信號處理器dsp實現系統全數字化硬體控制，結合ti公司生產的tms320lf2407晶元，設計了直接轉矩控制系統的實驗裝置； （ 4 ）提出了基於sercos總線網路化分散式的直接轉矩控制系統， sercos （ serialrealtimecommunicationsystem ）是目前最適合同步和協調控制的串列實時通信協議； （ 5 ）基本勾勒出整個控制系統的硬體和軟體設計基本框架，詳細描述一些實驗中的具體的細節問題。
  9. 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。
  10. So the research on these new materials is becoming more and more important. we collected and analyzed the overseas and domestic sufficient date for the optical characteristics of magneto - optic crystal. then we bring forward a research topic in varying magnetic field on some crystals optical characteristics such as the angle of rotation, the depolarization ratio and so on

    本文在對國內外有關磁光晶體光學特性研究狀況進行調研之後，從外界磁場對晶體光學特性的影響這一角度出發，在大范圍可調諧磁場下，對幾種不同的磁光晶體的光學特性，諸如faraday旋轉角、退偏度等進行了測定。
  11. Magnetorheological finishing ( mrf ) is a newly developed optical machining method, which can achieve fine - finished optical apparatus efficiently. combining with electro - magnetics, hydrodynamics and chemistry, mrf has been applied in optical machining. plane surface, sphere and asphere made of different optical materials can be machined

    它將電磁學、流變學、化學綜合作用於光學加工中，可以實現對光學器件的高效精密拋光，是獲得超光滑光學表面的理想工藝之一，目前已經被應用於對平面、球面、非球面的超精密加工，可加工材料范圍涵蓋了光學玻璃、微晶玻璃、光學晶體等多數光學材料。
  12. Device applications of physical phenomena are considered, including electrical conductivity and doping, transistors, photodetectors and photovoltaics, luminescence, light emitting diodes, lasers, optical phenomena, photonics, ferromagnetism, and magnetoresistance

    包括電導性及摻雜，電晶體、光偵測器及光伏特計，螢光、發光二極體、雷射、光學現象、光電子學、鐵磁性及磁阻性等物理現象之元件應用。
  13. Artificial magnetic crystals of similar dimension might soon serve biomedical research in a novel way

    類似大小的人造磁性晶體，可能很快就會以全新的方式應用在生物醫學研究上。
  14. Starting with causing mechanism of magnetostriction, this paper analyses and discusses the relationship of physical properties of magnetic crystal, deduces thermodynamics equation of the properties of magnetic crystal, such as magnetism, thermal and elasticity

    本論文從磁致伸縮現象的產生機理入手，對磁性晶體物理性質之間的關系進行分析和論述，並根據熱力學理論，給出了磁性晶體的磁、熱和彈性性質的熱力學方程。
  15. In order to measuring the changes of optical polarization in magneto - optic crystals, it is necessary to establish an optical system in which the changes can be measured

    為測定磁光晶體在大范圍磁場下的光學偏振特性變化，必須搭建一個測量系統。
  16. The theory on magneto - optic effect and the course of the research on magneto - optic crystals are discussed in the first chapter. being based on these, the idea of measuring the optical characteristics in varying magnetic field is brought about

    在第一章緒論部分，對磁光效應理論的發展及磁光晶體的研製與應用進程進行了概述，基於國內外研究現狀，提出在可調諧磁場下對磁光晶體的光學特性變化進行測量與研究。
  17. In the optical communication system, the magneto - optic crystal is the most important part of magneto - optical devices, such as magneto - optic modulator, magneto - optic isolator, magneto - optic circulator and so on. the optical characteristics of the magneto - optic crystal will influence the working performance of the devices

    磁光晶體在光通信用磁光式器件如磁光調制器、磁光隔離器、磁光環行器等中是其核心組成部分之一，它的光學特性直接關繫到器件工作性能的優劣。
  18. As we know the theoretical basis of all magneto - optical devices are various kinds of magneto - optic effect, the changes of these optical characteristics will be influenced by the variation of the external magnetic field

    由於各類磁光器件的理論基礎是各種磁光效應，磁光晶體中這些光學特性受磁場影響的變化將會直接影響其工作性能。
  19. In order to improve the performance of magneto - optical devices, the most important method to obtain the ideal purpose is to research the optical characteristics of the crystals. in these latter years, many new magneto - optic materials have been produced

    對改良磁光式器件而言，除對各分立器件組合及設計進行研製外，最重要也是最有可能獲得理想結果的便是對作為其核心部件之一的磁光晶體的光學特性進行研究。
  20. In 1987, a remarkable step was made by yablonovitch, who pointed out the possibility of the realization of photonic bandgaps, localized defect modes, and their applications to various optoelectronic devices, and by john who dicussed the strong localization of electromagnetic waves in disordered photonic crystals and also predicted many interesting quantum optical phenomena that can be realized in photonic crystals such as the bound state of photons and non - exponential decay of spontaneous emission

    1987年yablonovitch和john開創性地提出光子晶體這一新概念， yablonovitch指出了有可能實現光子頻率帶隙和局域缺陷模以及許多光電技術方面的應用， john則討論了在無序光子晶體中電磁波的強烈局域現象，並預言在光子晶體中存在許多有趣的量子光學現象，諸如光子局域態、自發輻射的非指數衰減。
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