均勻磁化體 的英文怎麼說

中文拼音 [jūnyúncíhuàtǐ]
均勻磁化體 英文
uniformly magnetised body
  • 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
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 體 : 體構詞成分。
  1. When the atomic ratio of nb is one, the structure is homogeneous and almost composed of the single sm2fe17 phase. it ' s nearly the same structure as that after annealing. so it can reduce the production cost and increase the stability of magnetic properties

    當nb的原子比為1時的鑄態組織基本為均勻的接近單相的sm _ 2fe _ （ 17 ）組織，已接近於退火后的組織，從而可以避免冗長的均勻化退火化過程而直接用於製造永磁體，極大的降低了生產成本，並能有效的提高磁性能的穩定性。
  2. However, the speed of penetration is equal to predicted value by fluid theory only in c + + plasma with uniform density profile. on other conditions, strong two - dimensional effects, electrostatic accelerating, magnetic pressure and plasma pressure should be included in the fluid analysis

    不過，值得注意的是僅有均勻分佈的c ~ （ + + ）等離子體條件下，磁場滲透速度與簡化流體理論分析結果基本相同，而其它條件下的磁場滲透速度均與理論結果存在一定的差異。
  3. Increasing the cooling velocity and additions of nb and zr can refine the a - fe dendrites in as - cast alloys, decrease the amount of a - fe phase after homogenization treatment. as a result, the magnetic. properties were improved

    提高鑄錠的凝固速度及添加nb和zr可以促進鑄態合金內- fe相的晶粒細化及均勻分佈，減少均勻后殘留的- fe相，提高均勻化的效率和質量，從而提高磁體的矯頑力。
  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. Base on certain main magnets of nmr this thesis designs the most excellent structure of the pole shape and obtains a relatively uniform magnetic field in a large imaging volume. the calculating model of pole shape made of pure iron can be simplified with the infinite permeability and calculated with the scalar potential. the rule between pole shape and the homogeneity or the size of uniform region of magnetic field is discovered and factors of influencing the homogeneity of the magnetic field are held so that the main magnet with the optimized size of pole shape can produce a relatively uniform magnetic field in a large imaging volume

    本文針對一類典型結構的主磁體，通過磁場分析與大量的計算，找到了極靴形狀的改變影響樣品區磁場均勻度以及均勻區域范圍的規律，掌握了極靴形狀的變化趨勢及其形狀影響樣品區磁場均勻度的各種因素，進行了極靴的形狀優化設計並編制了相應的計算機軟體，給出了極靴形狀的具體尺寸，使得主磁體能在更大空間內產生相對均勻的磁場。
  6. Being fine, homogeneous and free of melting, the powder prepared by mechanical alloying has applied to develop scattering strengthen - material, magnetic material, high - temperature material, superconductivity material, amorphous, and non - equilibrium material, compound material etc. as a high - tech technology to prepare alloying powder, ma has become a more and more important method for preparing new materials

    機械合金化法制備的粉末晶粒細小、成分均勻，且能避免熔化過程，已用於開發研製彌散強化材料、磁性材料、高溫材料、超導材料、非晶、準晶、納米晶等各種狀態的非平衡材料、復合材料、輕金屬高比強材料、儲氫材料、過飽和固溶體等。作為制備合金粉末的非平衡高新技術，越來越成為一種制備新材料的重要方法。
  7. The microwave magnetic sintering can not only lower the sintering temperature and shorten the sintering time, but also decrease the micro - grain size of magnets and make intergranular phase and grain boundary of main phase distributed well. the abnormal grain growth was found in conventional sintered ndfeb magnets, which may be due to the greater particle size and uneven distribution of powder, and higher sintering temperature and longer sintering time. of course, the abnormal grain growth would deteriorate the magnetic properties

    微波磁場燒結的不但降低燒結溫度，縮短燒結時間，而且使磁體整體加熱，受熱更均勻，因而磁體晶粒更細小，並且主相晶粒邊界趨于規則化，晶間相的分佈更均勻；在常規燒結的磁體中則出現了晶粒異常長大現象，造成這一現象的原因，一方面可能是燒結溫度過高或燒結時間過長，另一方面可能是磨製的粉體均勻性較差，存在的大顆粒被許多細小顆粒包圍，在燒結過程中，大顆粒不斷吞併小顆粒，逐漸長大，而異常長大的晶粒自然會導致磁體性能的惡化。
  8. The relation between collisional absorption of the em - wave and the plasma density, plasma collision frequency, and incident wave frequency is obtained

    給出了不均勻非磁化等離子體密度、等離子體碰撞頻率、電磁波頻率與碰撞吸收的關系。
  9. Both of the two ways can reach fb5b standard of tdk company. the coercive force of strontium permagnetferrite can be improved when a12o3 or cr2o3 was added to caco3 - sio2 or caco3 - hbo3 multi - additives. ( 4 ) comparing with normal caco3 and sio2, the nano caco3 and sio2 improve the magnetic. for the nano caco3 and sio2 have high chemical activations and excellent distribution, the density of permagnetferrite can be improved and the sinter temperature of it can be reduced

    納米caco _ 3 、 sio _ 2與普通caco _ 3 、 sio _ 2加入相比，鍶鐵氧體永磁獲得的最佳磁性能高，獲得最佳磁性能的添加量范圍變寬，即納米caco _ 3 、 sio _ 2提高了磁性能的穩定性，有利於大生產時鍶鐵氧體永磁的磁性能的穩定，對生產有重要的指導四川大學碩士論文意義;由於納米caco3 、 510 :分佈更均勻，具有高的化學活性，降低了銘鐵氧體永磁的最佳燒結溫度，提高了銘鐵氧體永磁的燒結密度，因而增大了caco3 、 510 :添加劑對銘鐵氧體永磁的改性效果。
  10. Also considered is the dependence of the guidance performance of the superconductor upon such elements as geometrical and current parameters of the system, the movement of the superconductor. comparison between the experimental and theoretical results indicates the effectiveness of the method utilized in the thesis

    這些元素包括以下三方面，系統的幾何尺寸：高溫超導體的幾何尺寸、永磁導軌的幾何尺寸；系統的電流參數：高溫超導體的臨界電流密度、永磁導軌中永磁體的均勻磁化強度；高溫超導體相對導軌的運動方式。
  11. 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。
  12. The particle size of the product is about 16 nm with perfect crystal structure. the product exhibits superparamagnetism and strong magnetic responsivity, the saturation magnetization being 55. 4emu / g and the magnetic susceptibility being 8. 28 10 - 3emu / oe. the particle size distribution is homogeneous with good dispersion. 2

    產物具有完美的晶體結構，粒徑約16nm ，比飽和磁化強度為55 . 4emu g ，磁化率為8 . 28 10 ~ （ - 3 ） emu oe ，磁響應性強，具有超順磁性，剩磁和矯頑力均為零，粒徑分佈均勻，分散性良好。
  13. By means of experiment the distribution of the non - uniformed magnetization of the magnetic ring of permanent magnetic bearing was measured, and the influence of magnet clearance on non - uniformed magnetization was analyzed

    摘要通過試驗測量了永磁軸承磁環不均勻磁化的分佈，分析了磁體間隙對不均勻磁化的影響。
  14. The absorption of electromagnetic wave by non - uniform magnetized plasma

    非均勻磁化等離子體中電磁波的吸收特性研究
  15. The wkb method is used to calculate the amount of reflection coefficient of a plane wave normally ( or obliquely ) incident on a conductive plane covered with inhomogeneous unmagnetized plasmas

    用wkb方法給出了垂直入射、斜入射情況下，非磁化不均勻等離子體密度覆蓋導體平板的等離子體對不同頻率電磁波的反射系數。
  16. 2. second, the investigation of wave propagation characteristic in periodically magnetized uniformity plasma is done, in light of numerical calculation, to analyze the effect of additional magnetic field amplitude, background magnetic field and plasma density changing on the propagation characteristic

    2 .對電磁波在周期磁化均勻等離子體中的傳播特性進行了研究，通過數值計算分析了不同外加磁場幅值，背景磁場以及不同等離子體密度對波傳播特性的影響
  17. 4. finally, the investigation of wave propagation characteristic in round waveguide filled uniformity plasma periodically magnetized is done, by numerical calculation, to analyze the effect on the propagation characteristic when additional magnetic field amplitude, background magnetic field and plasma density change

    4 .研究了電磁波在填充周期磁化均勻等離子體金屬圓波導中的傳輸特性，推導出該周期慢波結構的色散方程，通過數值計算，繪出了色散曲線圖
  18. It uses the encouragement of step wave or other impulse current field source to produce the transition process field in earth. in the moment of shutting the power it produce the volute alternating electromagnetic field. from the abnormity of measuring the attenuation character of the second induction electromagnetic field, which produced by underground medium with time change, the conductive capacity and the position of the underground non - homogeneous substance can be analyzed

    瞬變電磁法（ transientelectromagneticmethod ）是一種時間域的電磁勘探方法，利用階躍波或其它脈沖電流場源激勵，在大地產生過渡過程場，斷電瞬間在大地中形成渦旋交變電磁場，測量這種由地下介質產生的二次感應電磁場隨時間變化的衰減特性，從測量得到的異常分析出地下不均勻體的導電性能和位置，從而達到解決地質問題的目的。
  19. The particle - enriched zone moves outwards as the rotational rate increases. by employing steady dc magnetic field to the conventional centrifugal casting method, the distribution of particles is changed. the most uniform distribution is obtained when the magnetic density is 0. 15t

    通過向常規的離心鑄造中引入穩恆直流電磁場，基體中的顆粒分佈得到改善，磁感應強度為0 . 15t時，顆粒的分佈最為均勻，磁感應強度過大時，磁場將會引起基體組織粗化。
  20. The permanent main magnet is mainly the developing direction through analyzing the advantages and disadvantages between three sort of main magnets : superconductor, routine and permanence. aiming at the different types of the permanent main magnet with edge effects, which ca n ' t reach the demand of nmr imaging, numerical method of magnetic field computation and the theory of shape optimization is applied

    因此，本文應用磁場數值分析和形狀優化的理論和方法，探索了大空間內均勻磁場的技術，目標是在核磁共振成像主磁體己設計好的基礎上，對極靴的形狀進行優化設計，盡量擴大樣品區磁場均勻的范圍。
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