magnetic field potential 中文意思是什麼

magnetic field potential 解釋
磁勢
  • 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。
  • field : n 菲爾德〈姓氏〉。n 1 原野，曠野；（海、空、冰雪等的）茫茫一片。2 田地，牧場；割草場；〈pl 〉〈集...
  • potential : adj 1 可能的；【語法】可能語氣的。2 潛在的；有潛勢的；【物理學】位的，勢的。3 〈罕用語〉有力的。n...
  1. Compare the system ' s classical chaos motion between the double - potential well in the tiled magnetic field and that of potential well including biquadratic term

    比較了傾斜磁場作用下的雙勢阱和含有4次方的勢阱兩種情況下系統的經典混沌運動特徵。
  2. Next, in order to comprehand the electromagnetic characteristics and the dynamic characteristics of the new type of magnetic micromotors, the dissertation applied the concept of the magnetic scarlar potential of the irrotational magnetic fields and set up the mathmatic model for the inner magnetic field of the new type of motors from the basic equations and the boundary conditions of the motor magnetic field. oh the basis of the mathmatic model, the dissertation analized the various qualities of the magnetic field of the air gap between the rotor and the stator and gave a detailed calculation of the air gap ' s magnetic potential, magnetic field intensity, magnetic induction, the shape of the magnetic scarlar potential level surface, the distribution of the magnetic circuit, the magnetic induction the self - inductance and the mutual inductance of the coils

    其次，為全面了解這種新型電磁電機的電磁特性和動力特性，本文從電機磁場的基本方程及其邊界條件出發，應用無旋磁場的標量磁位概念，建立了端面搖擺式電磁微電機內部磁場的數學模型，並以此為基礎，詳細分析了電機氣隙磁場的各方面性質，對氣隙磁場的磁標位、磁場強度、磁感應強度、等磁位面形狀、電機工作磁路的分佈、電機的工作磁通量以及激勵繞組的自感和相互之間的互感進行了詳細的分析計算。
  3. In recent years, the colossal magneto - resistance effect in rare - earth manganite perovskites of the type lni. xaxmno3 ( where ln is rear - earth irons la2 +, nd2 +, p2 + ; a is alkaline earth iron ca2 +, sr2 +, ba2 + ) has attract considerable attention in scientific studies due to its potential application. however, the poor temperature dependence of mr and the low - temperature mr effect and the ideal mr only in high field severely limit their practical utility. in this work, we prepared manganite perovskite lai - xsrxmno3 and soft - magnetic ferrite materials fe2o3 and ( ni, zn ) fe2o4 by using sol - gel method separately

    近些年來，人們發現在鈣鈦礦錳氧化物ln _ （ 1 - x ） axmno _ 3 （ ln為la ， nd ， pr等稀土金屬元素； a為ca ， sr ， ba等堿土金屬元素）中具有磁電阻（ magnetoresistance ）效應，由於它在磁記錄，磁傳感器方面具有廣泛的應用前景，同時也向傳統的磁記錄材料提出了挑戰，因而引起了物理學界的廣泛關注。
  4. Since the discovery of colossal magnetoresistance effect ( cmr ) in per - ovskite manganites, it has sparked considerable renewed interests in these long - known materials with an eye towards both an understanding of the cmr and related properties and potential applications in magnetic information store and low - field magnetic sensors

    以鈣鈦礦結構氧化物為代表的巨磁電阻材料，由於它們所表現出來的超大磁電阻效應（ colossalmagnetoresistance ）在提高磁存儲密度及磁敏感探測元件上具有十分廣闊的應用前景，因而受到人們的廣泛關注。
  5. Chaos in the trigonal potential well subjected to a tilted magnetic field

    斜磁場作用下三角形量子阱中的混沌
  6. In 1995, the experiment of resonant tunneling diode in a magnetic field tiled by an angle with respect to the tunneling direction was accomplished by t. fromhold and b. willkinson etc. subsequently, e. e. narimanov and a. d. stone have theoretically studied this system with the square - potential well model

    例如， 1995年， t . fromhold和b . willkinson等人所做的傾斜磁場作用下的共振隧穿二極體實驗，以及后來由e . e . narimanov和a . d . stone等人採用方勢阱模型進行的理論研究。
  7. Abstract : based on 1 200000 aeromagnetic survey data performed in 1998, and referred to materials of geolo - gic and geochemical prospecting of the working area, this paper discusses the relationship between the characte - ristics of magnetic field, magmatic rocks, fault structure and the distribution of mineral resources, and investigates the geologic metallogenic environments, and sets up the prospecting criteria for hydrothermal and volcanic - sedimentary copper, lead, zinc, gold, iron, manganese deposits, then makes the prognosis of the prospecting potential of the working area

    文摘:本文以1998年1 20萬航空磁測資料為基礎，參考地質和化探資料，對工作區磁場特徵、巖漿巖、斷裂構造與礦產分佈的關系進行探討，研究地質成礦環境，建立尋找熱液型和火山-沉積型的銅、鉛、鋅、金、鐵、錳礦找礦標志，對本區找礦遠景進行了預測。
  8. It is the main purpose of this paper to calculate the energy splitting of ground state and excited states induced by thermally assisted quantum tunneling. first, a brief introduction is given for the theoretical and experimental studies on the magnetic macroscopic quantum effects. then, spin tunneling in a uniaxial ferromagnetic particle in transverse magnetic field is converted to a pseudoparticle moving in effective double - well potential with the help of the effective potential description of quantum spin systems developed by ulyanov and zaslavskii. finally using the periodic instanton method we evaluate the transition amplitude, energy shift and prefactor of wkb exponential and the energy splitting of ground state and the tunneling rate for excited states induced by thermally assisted quantum tunneling are obtained

    文章首先對磁性宏觀量子效應的理論和實驗方面作了簡單介紹，然後藉助于ulyanov和zaslavskii發展的一種等效勢描述方法，把外磁場沿難磁化軸方向時的自旋隧穿約化成在等效雙勢阱中運動的粒子，利用瞬子方法給出基態能級劈裂，最後利用周期瞬子方法分別計算了隧穿幅、能級移動以及wkb前因子，從而給出由於熱助量子隧穿引起的激發態的隧穿率。
  9. 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。
  10. We process calculations as the following : we calculate the binding energies of excitons in a square quantum - well wire in presence of a magnetic field for finite and infinite potential barrier case respectively

    A . balandin和s . bandyopadhyay也是利用變分法，採用二能帶模型計算了在外加磁場時的量子線中激子的基態束縛能。
  11. The vector magnetic potential of a system consisting a line electric current and an infinite long magnetic dielectric column is calculated with the method of separation of variables and method of images, it is pionted out that the vector magnetic potential of a system consisting a line electric current and a magnetic dielectric plane, an ideal paramagnetic column, a superconductor column, and a line electric current in homogeneous magnetic field can all be deduced from our calculation

    摘要用鏡象電流法和分離變量法計算了線電流與無限長磁介質圓柱系統的磁矢勢，指出線電流與無限大磁介質分界平面、線電流與超導體圓柱、均勻外磁場中有磁介質圓柱系統時的磁矢勢都可以由線電流與磁介質圓柱系統的磁矢勢的極限情形給出。
  12. Gmr property of these materials finds potential applications in the field of magnetic sensors, in memory applications and in prototype disc drives employing read - head technology

    巨磁電阻材料在磁傳感器、磁記錄和可讀磁頭方面有很廣闊的應用前景。
  13. In chapter 3, the mathematical modal of electromagnetic and temperature fields is presented by a complex magnetic vector potential, which is also applied to solve eddy current field in ansys software. then, the electromagnetic field analysis, thermal analysis and coupled - field analysis in ansys are introduced

    第三章：介紹了ansys中引入復矢量磁位計算電磁場、渦流場的方法以及溫度場求解的數學模型，簡述了ansys軟體中的電磁場、溫度場以及耦合場分析。
  14. The solving steps are as follows : the field is divided into three regions by the cylindrical surface of the finite - length cylinder and the location of the delta - coils. because " the surface current source is placed at the interface, the non - homogenous restricted equation on the magnetic vector potential is transformed into the homogenous helmholtz equation. by using the method of separation of variables to solve equation and according to the interface conditions and the condition at infinity to determine the unknown constants, the expressions for the magnetic vector potential of the three regions are solved out

    在求解過程中，假定放置式圓柱線圈是由無窮多個對稱圓環線圈密饒而成，首先求解含有有限長磁芯的通電對稱圓環線圈的電磁場：以有限長圓柱磁芯的側面和圓環線圈所在圓柱面為分界面將場域劃分為三個小區域，由於場源放置在內邊界面上，使得關于矢量磁位的非齊次約束方程轉化成齊次亥姆霍茲方程，利用分離變量法求解，根據分界面鄭州大學碩十研究生畢業論文摘要條件以及無限遠條件確定待定常數，從而得到各場區矢量磁位的表達式。
  15. And the expression of magnetic flux density b is got by making use of the relation of magnetic vector potential a and magnetic flux density b. finally, the equation of the magnetic flux lines is given by way of describing the distributing of the magnetic field

    通過求解該邊值問題得到了相應的矢量磁位a的解析表達式，然後利用矢量磁位a和磁感應強度召的關系求得了磁感應強度b的解析表達式。最後為了更直觀地描述磁場的分佈給出了相應的磁力線方程。
  16. The stability of the jet flows under strong magnetic field was explained with its velocity, induced potential and current

    從射流的感應電勢、電流、速度等方面，解釋射流在磁場中穩定的原因。
  17. The results of numerical calculation show that the ground - state energy changes with the coulomb bound potential, magnetic field and the well - width, which will increase with increasing magnetic field and decrease with increasing the coulomb bound potential and the well - width

    通過數值計算結果表明：量子阱中束縛極化子的基態能量因振動頻率、庫侖束縛勢、磁場和阱寬的不同而不同，它隨振動頻率和磁場的增加而增大，隨庫侖束縛勢和阱寬的增大而減小。
  18. We consider a neutral particle with magnetic moment antiparallel to the field. with the interaction potential energy between the magnetic moment of the particle and the magnetic field, we obtain the classical motion equation of the neutral particles in the loffe trap. in some limit conditions, by using the perturbative method, the equations may take on concise forms. of which the two equations about x and y are mathieu equations. if we properly set the parameters and have the condition a > > q > 0, we can solve the mathieu equation with the traditional wkbj method. as a new attemptation, with fourier series expansion we solve the mathieu equation and obtain the classical motion law of the neutral particles

    若阱的參數設置使得條件> > q 0成立時，我們可以利用傳統的wkbj方法近似求解馬丟方程。作為一種新的嘗試，本文還採用傅立葉級數展開的辦法來對馬丟方程進行求解，從而得到中性粒子在阱中的經典運動規律。在研究ioffe阱對中性粒子的囚禁問題時，實際上我們更感興趣的是馬丟方程的周期解，而要想獲得這種周期解，和q必須滿足一定的關系，亦即必須選擇阱的特定的參數和粒子的特定初始條件，對這一問題我們進行了嘗試性的研究。
  19. The effect of impurity on the electron wave function has calculated, it shows that for the perpendicular magnetic field and the strong bound potential of the quantum dot the effect of impurity on the electron wave function can be neglected

    我們計算了雜質對電子波函數的影響，結果表明對于強磁場下的強束縛勢量子點，雜質對于電子波函數的影響可以忽略。
  20. Topics covered include : electric and magnetic field and potential ; introduction to special relativity ; maxwell ' s equations, in both differential and integral form ; and properties of dielectrics and magnetic materials

    內容包括：電磁場和電磁勢；狹義相對論介紹；麥克斯韋方程組的微分形式和積分形式；電介質和磁性材料的性質。
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