quasi-potential 中文意思是什麼
quasi-potential
解釋
準勢-
The equation for the quasi - continuous atom laser beam wave - function is given by schrodinger equation, the beam width, divergence curvature radius and quality factor were introduced to represent the atom laser beam whose transverse potential could be separated. for the conservative quality factor system in some direction, we can ge t the propagator of abcd formulation
本文在含時量子系統傳播子的abcd形式理論的基礎上，引入某一方向的束寬、發散角、曲率半徑和品質因子等光束傳輸參數來表徵橫向勢能滿足x和y分量相互獨立的原子激光的傳輸。 -
In this thesis, studies are made on the problem of time - harmonic electromagnetic fields excited by an arbitrary current dipole in spherical conductor. the problem is presented in eddy - current nondestructive test and geophysical prospecting. under the condition of magnetic quasi - static state, the boundary - value problem about modified magnetic vector potential is solved and the analytical solution is obtained
本論文針對渦流無損檢測和地球物理勘探領域用到的球導體中時諧電流元的電磁問題做了研究，在磁準靜態近似下，求解了修正磁矢量位的邊值問題，獲得了問題的解析解，並利用通用有限元分析軟體做了數值驗證。 -
The concrete contents include : one background : with the comparison with the western countries, our compulsory education displays a strong government - oriented behavior, which is the root of success and potential failures in our compulsory education two clues : in " ought to be " level, it is " local quasi - public goods - - polycentri supply " and in " be " level, " pure public goods - - monopolized supply by government " one theoretic judgment : the separation of manufacture and provide in compulsory education, which gives the chance for polycentri manufacture of compulsory education one center point : to stick to the main responsibilities of government in providing and managing the compulsory education three contents : subject ( which ? ) : local governments are the responsibilities subject of compulsory education substances ( what ? ) : to ensure the compulsory education ' s public good from the nature, and compulsory education ' s development abilities of the whole local government from the quantity measures ( how ? )
具體內容有： ?一個背景：在中西方義務教育比較出的基本特徵中表現出的強烈的政府驅動，我國義務教育所取得的成績和所蘊涵的危機都在於此?兩條線索：理論應然層面上的「地方性的準公共產品? ?多中心供給」和實然層面上的「純公共產品? ?政府壟斷供給（單中心） 」 ?一個理論判斷：義務教育的生產與提供的分離? ?義務教育的多中心生產的可能性?一個中心：堅持政府在義務教育中責任的主要性? ?提供與管理?三項內容主體（哪一級政府） ：根據博奕理論，地方政府是我國義務教育的責任主體內容（負什麼責任） ：質上保證義務教育的公益性，量上保證各地方在義務教育發展力上的均衡措施（怎樣負責人通過政府間的轉移支付保證義務教育中的程序正義，通過義務教育的多中心生產，把「麵包做大」保證義務教育中的實質正義當然，在此對本文內容的區分梳理，只是一種思路的順序。 -
The principle advantages of vcsels over conventional edge - emitting lasers lie in ultralow threshold current, small far - field divergent angle, high modulation frequency, potential for wafer level testing and the ease for single longitudinal mode operation and two - dimension integration. as a result they show considerable promise for applications such as optical fiber communication, parallel optical interconnects, optical information processing and neural networks, etc. a direct coupling theoretical model in quasi - three - dimension for the gain - wave guide vertical - cavity surface - emitting lasers has been created in this paper
它與傳統的邊發射激光器相比具有更優越的特性，例如，具有極低的閾值、較小的遠場發散角、調制頻率高、易實現單縱模工作和二維集成，無須解理封裝即可進行在片測試等，所以，它被廣泛應用於光纖通訊、并行光互聯、光信息處理、光神經網路等領域。 -
Flier - plate with graded wave impedance, which can be regarded as a new type of functionally graded material ( fgm ) since its wave impedance changes gradually along the thickness direction and thus can be used to generate quasi - isentropic compression energy waves in targets or drive projectiles to hypervelocities, has come to show great potential for the application in dynamic high - pressure technique
波阻抗梯度飛片作為一類新型的功能梯度材料（ fgm ） ，因其波阻抗值沿厚度方向呈梯度變化而具有準等熵壓縮特性並能進一步用於超高速發射中，可以看作是fgm的優異特性在動高壓物理領域中的應用新拓展。 -
In the meantime, several formulas on the density of null external potential. quasi - harmonics and multi - harmonics are set and proven, which are very useful to construct and represent the characters of the functions above
同時，給出並證明幾個具有重要實用意義的關于零外部位密度、擬調和性及重調和性場源性質的基本公式。 -
Flier - plate with graded wave impedance, which can be regarded as a new type of functionally graded material since its wave impedance changes quasi - continuously along the thickness " direction and thus has quasi - isentropic compressive characteristics, has come to show great potential for the application in dynamic high - pressure technique
波阻抗梯度飛片作為一類新型的功能梯度材料，因其波阻抗值沿厚度方向呈準連續變化，而具有準等熵壓縮特性，可以看作是功能梯度材料在動高壓物理研究領域中的應用新拓展。 -
Flier - plates with graded wave impedance can be regarded as a new kind of functionally graded material ( fgm ), which has come to show great potential for the application in dynamic high - pressure technology. by using such fgms, quasi - isentropic loading to target materials can be created
波阻抗梯度飛片作為一類新型的功能梯度材料，因其對靶具有準等熵壓縮特性，可以看作是梯度材料在動高壓物理研究領域中的功能拓展。 -
In the first part of paper, we introduce the appliance of doppler weather radar in meteorological work in the near future, and simply enumerate all kinds of adjoint methods to retrieve data of radar. in the second part of paper, we choice some methods that are usually used domestically and overseas, compare excellence and flaw of the methods by using data of simulate wind field, analyze synthetically the precision of simulate result, the length of retrieval time and the structure of data distributing, lastly decide to regard ameliorated quasi - 4d adjoint method as retrieval technology in the paper. in the third part of paper, we retrieve the data of single doppler weather radar in hefei, anhui province, then calculate 3d wind field, streamline field, divergence, vorticity, helicity, moisture flux, divergence of moisture flux and potential vorticity from the result of retrieval
文中第一部分對近年來多普勒天氣雷達在氣象工作中的應用作了介紹，同時簡單的羅列了反演雷達資料的各種變分方法；接下來在第二部分選取了幾種國內外常用的反演方法，利用模擬的風場資料比較各種方法的優缺點，從模擬結果的精度、反演時間的長短、資料的分佈結構上綜合分析，最後決定將已做改進的準四維變分分析方法作為本文的反演工具；第三部分就是反演安徽合肥多普勒天氣雷達資料，然後由反演得出的風場計算了各個時間各個層次的三維風速、流場、散度、渦度、螺旋度、水汽通量、水汽通量散度和位渦。 -
Wavelengths or scales of surface heterogeneity are less than 20km. simulation results show that cbls do reach a quasi - stationary state correspondent to specified surfaces, after a long enough evolution. in this transition process and after that, horizontal statistics, i. e. mean potential temperature and vertical heat - flux, show profiles little differences to those over homogeneous flat surface. main effect of surface heterogeneity is to increase kinetic energy in cbl and the increase concentrates in the direction of surface heterogeneity. the time of cbl spent to reach its first peak of mean kinetic energy,
模擬結果表明，在充分長的時間后，邊界層達到一種適合於地面條件的準定常態。這種準定常態和向其過渡的過程中，水平平均的邊界層廓線性質，如平均位溫廓線垂直熱通量廓線等幾乎與平坦均勻地面的結果相同，或差異極小。地面非均勻性的主要作用是使邊界層動能增大，並以地面非均勻性變化方向的動能增加為主。
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