electric-magnetic conductivity 中文意思是什麼

electric-magnetic conductivity 解釋
電磁傳導率
  • electric : adj. 1. 電的；帶電的；起電的，導電的，發電的，電動的。2. 令人激動的，緊張的，驚人的。3. 〈美口〉（樂曲的）用電吉他演奏的。n. 〈口語〉1. 帶電物體。2. 電動車輛。
  • magnetic : adj. 1. 磁（性）的；（可）磁化的。2. 吸引人心的；有魅力的。3. 催眠術的。
  • conductivity : n. 【物理學】傳導性[力]，傳導率；導電率[性，系數]。
  1. We have investigated transport properties of electrons in magnetic quantum structures under an applied constant electric field. the transmission coefficient and current density have been calculated for electron tunneling through structures consisting of identical magnetic barriers and magnetic wells and structures consisting of unidentical magnetic barriers and magnetic wells. it is shown that the transmission coefficient of electrons in a wider nonresonance energy region is enhanced under an applied electric field. the resonance is suppressed for electron tunneling through double - barrier magnetic ( dbm ) structures arranged with identical magnetic barriers and magnetic wells. incomplete resonance at zero bias is changed to complete resonance at proper bias for electron tunneling through dbm structures arranged with different magnetic barriers and magnetic wells. the results also indicate that there exist negative conductivity and noticeable size effect in dbm structures

    對磁量子結構中電子在外加恆定電場下的輸運性質進行了研究.分別計算了電子隧穿相同磁壘磁阱和不同磁壘磁阱構成的兩種磁量子結構的傳輸概率和電流密度.計算結果表明，在相當寬廣的非共振電子入射能區，外加電場下電子的傳輸概率比無電場時增加.對于電子隧穿相同磁壘磁阱構成的雙磁壘結構，共振減弱；對于電子隧穿不同磁壘磁阱構成的雙磁壘結構，無電場作用時的非完全共振在適當的偏置電壓下轉化為完全共振，這時的電子可實現理想的共振隧穿.研究同時表明，磁量子結構中存在著顯著的量子尺寸效應和負微分電導
  2. These methods have many problems to the design and numerical number analogy of electric wire. electric potential and electric eddy - current detector, such as the wire size, the wire core type ( solid core or twisted line ), the wire core conductivity, the magnetic permittivity and the optimize match of the detector ' s form, are n ' t made an incisive analysis

    這種方法對電線電位電渦流透視探頭的設計和數值模擬中的很多問題，如線徑大小，線芯類型（實芯、絞線） ，線芯電導率，磁導率與探頭形狀的優化匹配等問題，還不能透徹分析。
  3. The first part of this thesis includes the following information : ( 1 ) the significance of materials and the progress in every fields of material science in recent years ; ( 2 ) the history of magnetic material and the classification of magnetic material ; ( 3 ) the emergency and the classification of organic magnetic materials as well as the significant progress in the field of ferrocene polymeric magnet recently ; ( 4 ) introducing die development and the status quo of dielectric polymer and discussing the four parameters which are used to characterize the dielectric beheaviour of material, these parameters mclude dielectric constants dielectric loss ^ electric conductivity and breakdown strength

    本文在開頭部分簡單講述了以下內容了： （ 1 ）材料的重要性以及近些年來材料業各個領域的發展； （ 2 ）磁性材料的發展史以及磁性材料的分類； （ 3 ）有機磁性材料的出現、有機磁性材料的分類和近些年來有機金屬磁性材料尤其是二茂鐵高分子磁體領域所取得的重要進展； （ 4 ）高分子介電材料的發展與現狀，對表徵材料介電性能的四個重要參數即介電常數、介電損耗、電導率和擊穿強度做了比較詳盡的論述。
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