磁矩密度 的英文怎麼說

中文拼音 [cíjǔmìdù]
磁矩密度 英文
magnetic moment density
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 矩 : 名詞1. （畫直角或正方形、矩形用的曲尺） carpenter's square; square2. （法度; 規則） rules; regulations 3. [物理學] moment
  • 密 : Ⅰ名詞1 （秘密） secret 2 [紡織] （密度） density 3 （姓氏） a surname Ⅱ形容詞1 （距離近; 空隙小）...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  1. After studying the relation of distributive function and density matrix, the electron energy is calculated in magnetic field according to the distributive function in the thermodynamic statistical physics and the density matrix average value principle in the quantum mechanics, respectively

    摘要研究正則系綜中的配分函數與密度矩陣的關系，分別採用熱力學統計物理中的配分函數和量子力學中的密度矩陣與平均值原理，計算電子在磁場中的能量。
  2. It is found that the fwm field can cause the asymmetry of electromagnetically induce transparency profile. in addition, the effect of different propagating orientations of probe field on the electromagnetically induced transparency is also discussed. in the molecular multi - level system with the perturbed superposition levels, we discuss the electromagnetically induced transparency, spontaneous emission enhancement, double dark resonance and double electromagnetically induced transparency by using the density matrix equation under weisskopf - winger approximation and dressed - state density matrix equation

    針對實際的實驗條件，考慮了一種影響量子干涉的新的因素-四波混頻場，研究了四波混頻場對雙光子探測的-型能級體系的eit的影響，發現四波混頻場能夠導致雙光子探測的eit線型的不對稱，在此基礎上，討論了不同探測場的傳播方式對eit的影響，針對分子中實際存在的包含有微擾能級的不同多能級系統，我們分別採用綴飾態繪景下的密度矩陣方程和weisskopf - wigner近似下的密度矩陣方程詳細地討論了電磁感應透明、自發輻射的干涉相消和相長、雙暗態共振和雙電磁感應透明現象。
  3. Analysis of electromagnetic field and electromagnetic torque performance on super high power density induction motor

    超高功率密度感應電機電磁場及轉矩特性分析
  4. Compared with normal synchronous motors, the permanent magnet synchronous motor ( pmsm ) is effective, high pull - in torque, fast speed response and well speed precision in open loop

    永磁同步電動機（ permanentmagnetsynchronousmotor ，以下簡寫pmsm ） ，與普通交流電機相比，具有效率高，功率密度高、啟動轉矩大、響應速度快、開環轉速精度高、等諸多優點。
  5. Pm flux switching machines contain the merits of both switched reluctance machine and pm machine, such as the simple structure, high torque density and efficiency, as well as the flux - weakening capability

    摘要永磁開關磁鏈電機兼具開關磁阻電機和永磁無刷電機的優點，結構簡單、轉矩和能量密度大、效率高，而且具有良好的弱磁能力。
  6. The ultrasonic motor displays particular properties like the higher power density, the non - electronmagetic interference, the low speed with big torque, the small start - stop time - constants, the movement without the noise, high holding torque with no current applied and so on

    它具有功率密度大、無電磁干擾、低速大轉矩、動作相應快、運行無噪聲、無輸入自鎖等卓越特性。
  7. As the representation of the electron spin angular momentum is two - dimensional or three - dimensional, the electron energy is calculated simplier by the theory of density matrix and average value

    當電子在磁場中的自旋角動量的表示為二維和三維時，應用密度矩陣原理求解其能量更為簡便。
  8. In this part we start form the magnetic field integral equations ( mfie ) and then establish the matrix equations for the unknown magnetic currents on the surface of slot aperture. to solve this problem, piece - wise sinusoidal basis and galerkin ' s method are used

    首先，利用理想縫隙假設建立關于縫隙內外口面磁流密度的磁場積分方程，然後採用分段正弦基galerkin方法將積分方程離散為關于展開系數的矩陣方程。
  9. The motor ' s magnetic field is analyzed with finite element method ( fem ) by ansys software. the emf and electro - magnetic torque are calculated with path method base on the air gap magnetic flux density ( b )

    運用有限元分析軟體ansys對電機內部磁場進行模擬分析，得出電機內部磁場磁密及磁場強度分佈情況，在此基礎上運用路徑法對電樞反電動勢、電磁轉矩等電磁參數進行了分析計算。
  10. Zny, ni ( 1 - y ) fe2o4 and cobalt substituted ni - zn soft ferrite powders of zn0. 4ni ( 0. 6 - a ) coa fe2o4 are synthesized by shs. the shs powders and cycle samples are annealing in 1100 for 2h. their magnetic, and micro structural properties are studied using xrd, vsm and sem techniques. the studies reveal that the value of hc mr and ms of the powder of zn yni ( 1 - y ) fe2o4 are maximal when the value of y is 0. 4

    研究發現：隨著zno含量（ y值）的增加，粉末產物的矯頑力（ hc ） 、飽和磁矩（ ms ）以及剩餘磁矩（ mr ）先增大（在y = 0 . 4時取得最大值）然後再下降；磁環表面顆粒逐漸長大，孔隙率減少，密度增加；磁環的bs與br先增大再減小，在y = 0 . 4時達到最大；磁環的矯頑力hc是遞減的。
  11. Today, oop and com technique is used widely in software area. in this paper, on the basis of nonlinear transient electromagnetic field analysis, oop technique is applied to build the basic class library of machine, and the store of large sparse matrix was combined with related algorithm closely, which save the cpu time obviously

    目前面向對象編程技術（ oop ）和組件技術（ com ）已在軟體領域得到廣泛應用，本文在進行非線性瞬態電磁場理論分析的基礎上，採用oop技術，進行了電機求解的基本類庫的構建，將大型稀疏矩陣的存儲與有關演算法緊密耦合，顯著提高了運算速度，並形成了用於求解非線性瞬態電磁場的軟體包。
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