磁導體 的英文怎麼說

中文拼音 [cídǎotǐ]
磁導體 英文
magnetic conductor
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 體 : 體構詞成分。
  1. High purity gallium metal is the basic ingredient for semiconductor compound material, and it is also highly utilized in the manufacture of super conductor material, alloy, alnico etc

    高純度金屬鎵是生產化合物半導體材料的基礎材料，同時它還可以用於生產超導材料、合金材料、永磁材料等。
  2. Electronic and magnetic properties of 3d transition - metal - doped - - 2 chalcopyrite semiconductor

    2黃銅礦半導體的電磁性質
  3. Measuring method for demagnetized state permeability of microwave ferrite materials

    微波鐵氧體材料退磁態磁導率的測量方法
  4. Research of electromagnetic field in conductor surface

    導體表面上的電磁場研究
  5. Therefore the output magnetic torque of torque motor can be increased. in this paper, mathematical model of hydraulic flapper - nozzle servo - valve is introduced. the mathematical model of magnetic fluid is built according to the reference introduction

    本文給出了噴嘴擋板伺服閥的數學模型，對作用於伺服閥力矩馬達的磁流體數學模型進行了推導，給出了添加磁流體的噴嘴擋板伺服閥的數學模型。
  6. Firstly, in spherical coordinate system, the sovp formulation for the time - harmonic electromagnetic fields of the current dipole in conductive infinite - space is derived, using reciprocity theorem and transforming relations between special functions. then, selecting appropriate coordinate system, using superposition principle, the boundary - value problem of modified magnetic vector potential on the problem of a time - harmonic current dipole in spherical conductor is solved and analytical solution is obtained. finally, by means of the addition formulas of legendre polynomial and spherical harmonics function of degree n and order 1, the analytical solution in spherical coordinate system specially located is transformed into that in spherical coordinate system arbitrarily located

    首先利用特殊函數間的轉化關系和互易定理推導得到了無限大導體空間中球坐標下時諧電流元電磁場的二階矢量位形式：然後利用疊加原理，選擇合適坐標系，求解了導體球中時諧電流元的修正磁矢量位邊值問題，得到了問題的解析解；最後依據不同坐標系下電磁場解的轉化原理，藉助勒讓德多項式和n次1階球諧函數的加法公式，將坐標系特殊安放時的電磁場解析解變換到坐標系一般安放時的解析解，給出了球內電場和球外磁場的並矢格林函數。
  7. Lues research on the stability and quench issues of superconductors and superconducting magnets spanned both the low and high temperature superconductors

    呂錦文在超導體及超導磁鐵的穩定和驟停問題的研究，從低溫超導體延伸到高溫超導體。
  8. Test method for measuring relative complex permittivity and magnetic permeability of solid materials at microwave frequencies

    測量微波頻率下固體材料相對復合電容率和磁導率的試驗方法
  9. Standard test method for measuring relative complex permittivity and relative magnetic permeability of solid materials at microwave frequencies

    微波頻率下固體材料相對復介電常數和磁導率測量標準試驗方法
  10. Many planets ( for example, ganymede, mercury, the earth, jupiter and saturn ) and stars ( for example, the sun ) possess intrinsic magnetic fields. the explanation for their existence and variation remains a great challenge to planetary scientists and astrophysicists. this article attempts to review some recent developments and difficulties in the study of magnetohydrodynamics for the electrically conducting fluid interiors of planets and stars. it is the fluid motions, usually driven by thermal convection, that generate and sustain magnetic fields through magnetohydrodynamic processes in planets and stars. in planets, the magnetohydrodynamic processes are strongly affected by the combined and inseparable effects of rotation, magnetic fields and spherical geometry. the key dynamics involves the interaction between the coriolis and lorentz forces. in the sun, it is the solar tachocline, a thin shear flow layer located at the base of the convection envelope, that plays an essential role in the solar magnetohydrodynamic processes which produce the 11 - year sunspot cycle. some results of a new nonlinear three - dimensional solar dynamo model are also presented

    許多行星（如木衛三，水星，地球，木星和土星）和恆星（如太陽）具有內部磁場.對這些磁場的存在和變化的解釋對行星科學家和天體物理學家是一個巨大的挑戰.本文試圖總結行星和恆星的導電流體內部磁流體力學研究的新近發展和困難.一般由熱對流驅動的流動通過磁流體力學過程產生並維持在行星和恆星中的磁場.在行星中磁流體力學過程強烈地受到轉動，磁場和球幾何位型的綜合影響.其動力學的關鍵方面涉及科里奧利力和洛倫茲力間的相互作用.在太陽中其流線，即處于對流層的薄的剪切流層在太陽的磁流體力學過程中扮演了一個基本的角色，並由之產生了11年的太陽黑子周期.本文也給出了一個新的非線性三維太陽發電機模型
  11. Radar cross section ; dielectric - coated conductor ; fast multipole algorithm ; impedance boundary condition

    電磁散射塗層導體快速多極演算法阻抗邊界條件
  12. In the past few years, with the development of electronic technology and semiconductor storage device, solid state recorder ( ssr ) based on dram and flash memory has taken place the tape recorder, magnetic disk and magnetic - optic disk and been the dominating solution for the storage of mass data in the spacecraft

    近年來，隨著電子技術的發展和半導體存儲器密度的不斷提高，以dram和flash為主的固態大容量存儲器逐漸取代了早期星上的磁記錄設備而成為空間飛行器數據記錄的主流方案。
  13. As silicon is the most important semiconductor material in micro - electronic field, one - dimensional nano - structures of silicon play an important role in the fields of device assembly, nanometer - size magnetic device, photoelectronics, and have drawn wide interest in the world

    摘要作為微電子領域最重要的半導體材料，硅的一維納米結構在器件組裝、納米尺寸磁性器件、光電子等領域具有重要的作用，已經成為國際上材料科學研究的一個熱點。
  14. Fem analysis of the internal magnetic field and inductance of cylindrical conductor by accounting for the skin effect and eddy currents

    考慮趨膚效應和渦流效應的柱形導體內部磁場和內部電感的有限元分析
  15. We propose a novel controllable atomic beam - spiller based on the uccc and discuss the splitting mechanism of the guided atomic beam in the beam splitter from two aspects of the magnetic - field distribution and the trace of the guiding centers. the splitting ratio of the beam splitter can be adjusted by adding a homogeneous bias magnetic field along the y - direction, and the relationship between the splitting ratio and the additional bias field is analyzed

    本文提出了一種採用在y方向上加一偏置磁場來實現分束比可控的新穎原子分束器，並從磁場分佈和導引中心軌跡兩個方面，詳細分析和討論了基於u -型載流導體所構建的原子分束器的分束機制。
  16. According to the minimum principle in energy, we analyze the microcosmic mechanism of magnetic domain construction and the main factor that affect the shape, size and connecting of the magnetic domain etc. from the microcosmic mechanism of ferromagnet, we analyze how stress influence the magnetic domain and magnetic domain wall, and discover the increase of stress energy and magnetism elasticity energy which destroy the balance of system energy make up the influence of magnetic domain structure, then set up basic disciplinarian between stress and characteristic of magnetism

    同時根據能量最小原理，從理論上分析了磁疇結構存在的微觀機理以及影響磁疇結構運動、變化的主要因素，得出了應力的存在將影響磁疇的形狀、大小和搭配方式等結論。從鐵磁晶體的微觀機理出發，研究了應力對磁疇和磁疇壁的影響，發現應力影響磁疇結構的本質是由於應力的作用使得鐵磁晶體增加了應力能和磁彈性能，體系為了達到新的平衡，導致了磁疇結構變化，並研究了應力與鐵磁晶體磁特性之間的基本規律。
  17. The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites

    研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體，需要嚴格控制配方中各種原材料的含量，優化配方;由於粉體活性受預燒條件的影響，所以對不同要求的鐵氧體選擇的預燒條件就不一樣，適當降低預燒溫度有利於獲得較高的起始磁導率，而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求，可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件，本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝，適宜的燒結工藝可以獲得理想微結構和組成，從而得到高性能的鐵氧體材料;而從材料的微結構上來看，要提高材料的截止頻率，就要適當地細化晶粒、增加晶粒內部的氣孔。
  18. It is suited for : high - tech electronic parts and related products such as magnetic head, ic, lsi, optical fiber, semiconductor, electronic lead frame and etc, require high precision disc wheel with high precision, efficiency cutting and break molding

    適用：高科技電子零件及相關產品，如磁頭ic lsi光纖半導體封裝品電子導線架等，要求高精度高效率切割切斷加工的高精密薄片砂輪。
  19. Based on the special property of magnetic fluid ( mf ), we fill the magnetic fluid into the working clearances of the servo valve torque motor. one side, the magnetized magnetic fluid can exert a damping torque on the torque motor armature and reduce vibration of the armature ; on the other side, it can improve the magnetic circuit efficiency of the torque motor because of the magnetic fluid ’ s larger magnetic permeability

    基於磁流體所具有的特殊性質，將磁流體添加到伺服閥力矩馬達的工作間隙中，一方面磁流體被磁化后可增大銜鐵的阻尼力，減少振動;另一方面由於力矩馬達氣隙中磁導率的提高，使氣隙中的磁通量增大，力矩馬達的磁路效率和輸出扭矩將增大，因此可以提高力矩馬達的固有頻率和伺服閥的響應速度。
  20. Its effectiveness is also exhibited in the patch antenna with a perfect magnetic conductor ( pmc ) substrate and a pbg cover. 3

    這種光子晶體覆層的有效性也在具有理想磁導體（ pmc ）基底與pbg覆層的貼片天線中得到了展現。
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