propagation factor 中文意思是什麼

propagation factor 解釋
傳播因數
  • propagation : 持續培養
  • factor : n 1 〈英國〉經銷人；（代客買賣收取傭金的）經紀人；代理商；代辦人；〈蘇格蘭語〉 土地經管人。2 要素...
  1. According to the geometry of slope measurements for the subjective wavefront optometer, a wavefont reconstruction model using zernike polynomial with normalization factor is put forward. based on householder transformation and gram - schmidt orthogonalization method, two methods for working out unknown zernike coefficients are bring forward. the error propagation parameter for the wavefront reconstruction model is deduced

    深入研究了帶標準化因子的zernike多項式的性質;針對主觀式像差儀波前斜率采樣方案，提出了採用帶標準化因子的zernike多項式對眼測試波前進行重建的數學模型;提出了兩種求解方法，即基於householder變換求解法和基於gram - schmidt正交化求解法，用於確定重建模型中的未知模式系數;推導出了該波前重建模型對斜率測量誤差的傳遞系數。
  2. An epidemic model of friendly worm counter - attacking network worm is proposed based on two - factor model, with the conditions that the machine number of the network is fixed during propagation

    這對于基於主動擴散的良性蠕蟲主動對抗惡性蠕蟲具有一定的指導意義。其次，研究基於ascm模型的良性蠕蟲主動擴散演算法。
  3. Based on the generalized huygens - fresnel diffraction integral and in consideration of the effect introduced by astigmatism, the transformation properties of gaussian beams passing an astigmatic lens are studied analytically, the beam quality of astigmatic gaussian beams is analyzed in terms of the beam propagation factor ( m2 - factor ) and power in the bucket ( pib ), and illustrated with numerical examples

    基於廣義惠更斯-菲涅爾衍射積分，並考慮了像散的影響，對高斯光束通過像散透鏡后的傳輸特性作了解析研究，以光束傳輸因子和桶中功率為參數分析了像散高斯光束的光束質量，並以數值計算例加以說明。
  4. We discussed the propagation of the atom laser beam which had non - conservation quality factor based on the theory of abcd formulation of propagation of a time - dependent quantum system

    我們試圖提供一種研究原子激光傳輸的一般方法，為進一步的實驗和理論預測提供一個理論工具。
  5. In chapter 3, we discussed the propagation of the atom laser beam, with the transverse independent of gravitate direction, which had non - conservation quality factor based on the theory of abcd formulation of propagation of a time - dependent quantum system

    第三章：本章在含時量子系統的schrdinger形式理論的基礎上初步討論原子激光? ?這種品質因子不守恆的含時量子系統的傳輸問題。
  6. Within the frame of the abcd formulation of propagator of a time - dependent quantum system, the abcd law is extended to the so - called effective abcd system which effective beam quality factor is conservative ; we discussed the system like the propagation of the atom laser beam

    如果考慮原子激光內部原子間相互作用的影響，就要引入描述原有品質因子和原子間相互作用綜合作用效果的物理量? ?有效品質因子和有效復數曲率半徑，利用heisenberg圖像得到傳播子的有效abcd形式。
  7. An effective quality factor representing both the interaction between atoms within the atom laser and the quality factor is introduced to study the propagation of the atom laser beam. we derive the abcd formulation of the propagation of an atom laser beam with arbitrary beam profile including the interaction between atoms within the atom laser by means of the theory of quantum mechanics

    因此，本章在schrsdinger形式理論的基礎上，引入守恆的有效品質因子來討論有效品質因子守恆的的含時量子系統?原子激光（考慮了原子激光內部原子間相互作用）傳播子的有效abco形式。
  8. ( 2 ) based on the propagation equation of fgbs passing through unapertured paraxial abcd optical systems, the similar transformation conditions are obtained for the first time, which is expressed as that two fgbs with the same beam order have similar intensity distributions at the two positions of equal generalized fresnel number when they propagate through two ajb, cjdi ( i = l, 2 ) systems. furthermore, a comparison between a fob and a sgb of the same beam a ^ - factor but different waist widths is performed for the first time

    （ 2 ）通過對作為整體的平頂高斯光束在無光闌限制近軸abcd光學系統中傳輸公式的分析，首次得到了平頂高斯光束的相似變換條件，即階數相同的平頂高斯光束在傳輸矩陣為a _ ib _ ic _ id _ i （ i = 1 ， 2 ）的兩個光學系統中傳輸時，在菲涅爾數相等的兩個面上具有相似的光強分佈。
  9. Analyzing the propagation behaviors for open and close crack, the author gain that normal fault is more dangerous to earthquake than reverse fault and glide fault. 3. appling fracture mechanics to discuss reservoir - induce earthquake mechanism, the author observes the characteristic of surface crack and gains the stress intensity factor induced by the pressure of rock, water and osmosis

    針對庫區斷層為表面裂紋這一特點，研究水庫地震的斷裂特點，得出地應力作用下的應力強度因子、庫水作用下的應力強度因子和滲壓作用下的應力強度因子以及它們的應力強度因子之合，並且合理的解釋了構造型水庫地震的誘發機理。
  10. is the plane-wave propagation factor in the uppermost medium and w is the propagation factor of the surface wave.

    是最上部介質中的平面波傳播常數，而w是表面波傳因子。
  11. On the contrary, the degree of saturation plays an important role on p - wave propagation, if incidence is 90 degree. the amplification factor on surface related to the response of bedrock is the biggest if the media is one - phase media, and the factor is the smallest if the media is unsaturated media ( sr > = 90 % )

    P波從底邊界垂直入射時，飽和度對地表土層的反應有顯著的影響。就地表土層位移和加速度相對于基巖的放大倍數來說，一般有這樣的規律：單相土的放大倍數最大，欠飽和土的放大倍數最小，飽和土的放大倍數居中。
  12. 5 the effect of complex media protruding topography on seismic wave propagation the protruding topography has amplification effect on ground motion while the hillside has constraint effect. the amplification factor of the valley bewteen two moutains is related to the distance of the two moutains

    5 、復雜介質凸起地形對地展波傳播的影響山體對地面運動有放大作用，在山腳則有抑制作用，山包之間峽谷的土層反應放大倍數受山包之間距離的影響較大。
  13. " second, jhe failure process of lpg vessel usually includes two phasest the crack formation and the crack propagation. after the temperatat field distribution and the iil. stress field distribution of lpg vessel without cracks are calculated, the stress intensity factor of lpg vessel with initial radial crack as well as surface crack are calculated and analyzed

    其次，液化氣容器的失效過程通常分為裂紋形成和裂紋擴展兩個階段，本文在對無裂紋液化氣容器的瞬態溫度場和應力場進行了計算后，對含有初始表面裂紋的液化氣容器的瞬態應力強度因子進行了計算和分析。
  14. Chapter 4 : applying the definitions of the generalized second and fourth order moments, the beam propagation m2 - factor and the kurtosis parameter of coherent and incoherent combinations of two - dimensional off - axis elegant hermite - gaussian ( ehg ) beams are derived analytically and numerically. and the power in bucket ( pib ) is also presented numerically. our results illustrate the propagation properties of the beam through a first - order optical abcd system

    第四章：討論了相干和非相干離軸完美厄密高斯（ eleganthermitegaussian （ ehg ） ）光束組的傳輸特性，通過解析推導和數值模擬，研究了相干和非相干的離軸ehg光束組的傳輸，得出並比較了相干和非相干的離軸ehg光束組的光束質量因子、陡峭度和筒內的功率（ powerinbucket ） 。
  15. Chapter 4 : the paraxial propagation of partially coherent beams with the hermite - gaussian mode is investigated. the more generalized and simple expressions of the mean squared width and the beam quality factor of the beam with different mode order are obtained in terms of the cross - spectral density. our re - sults show that the higher order strengthens the variations of the mean beam width and the beam quality factor for partially coherent beams, and the relation between the two parameters of partially coherent beams is independent of the coherence length

    第四章：初步探索了部分相干厄米高斯光的傍軸傳輸，根據交叉光譜密度得到了其不同模階數的平均光束束寬和光束質量因子更一般的解析表達式，較高的模階數使得光束展寬得越快，光束質量變差，且這兩個光束參量的關系與部分相干厄米高斯光的相干長度無關。
  16. A new algorithm is then derived, in which the factor of spherical wave front is removed explicitly. thus the propagation of a focused beam could be evaluated indirectly from propagation of an unfocused beam

    文中對此作了分析，進而提出了一種新演算法，將球面波因子提出，然後將會聚光束的傳輸過程轉化為非會聚光束的傳輸過程，從而間接求得了聚焦光束的光場分佈。
  17. Chapter 2 : using a so - called variance matrix, we studied the propagation and the focusing characteristics of the paraxial light beams. the quantities characterizing the gross features for a paraxial optical beam, such as the beam width, the divergence, the curvature radius of the wavefront, the complex beam parameter q. and the beam quality factor, are related by using variance matrix

    第二章：闡述了常數折射率介質中光束的傳輸和聚焦，建立了表徵傍軸光束總的特徵的量，如：束寬、衍射發散角、波前曲率半徑、復光束參數q與變換矩陣的關系，得到了光束質量因子和變換矩陣行列式的定量關系。
  18. Calculations of path - differences in different cases have been analysed. calculations of propagation factor in interference region, diffraction region and transition region has been studied. method of determination of transition region is introduced

    研究了多路徑和衍射的產生機理，分析了不同地面時路徑差的計算方法，分析了地面反射系數的計算方法以及衍射區和過渡區方向圖傳播因子的計算過程，最後闡述了過渡區的判斷方法。
  19. In chapter 3, the elegant hermite - cosh - gaussian beams as another special case in hermite - sinusodiol - gaussian family is introduced and its propagation properties through a first - order optical abcd system are investigated. an analytical solution of the elegant herimite - cosh - gaussian beam propagating through a first - order abcd system is derived, and correspondingly, the closed - form m2 - factor, the beam width, the curvature radius and the power in bucket are presented analytically. the numerical investigations are carried out and show that the m2 - factor of elegant hermite - cosh - gaussian beam is greater than that of elegant hermite - gaussian beams and less than that of hermite - gaussian beams approximately

    本文得到的主要結果可歸納為：首次用強度矩的方法研究了hermite - cosh - gaussia （ hchg ）光束，得到了hchg光束的束寬、曲率半徑、 m ~ 2因子、瑞利距離等的解析表達式；用陡峭度和pib參數去衡量hchg光束的光束質量，找到了hchg光束在傳輸過程中影響光束質量的因素並得到了變化規律；證明了hchg光束在傳輸過程中的重心和對稱性都會得到保持。
  20. In training of back - propagation neural network, parameter adaptable method which can automatically adjust learning rate and inertia factor is employed in order to avoiding systemic error immersed in a local minimum and accelerating the network ' s convergence ; introduced the further optimization of the network ' s structure, it gives the research result of selection of the hidden layers, neurons, and the strategy of re - learning, compared the sums of the deviation square of this algorithm with conventional bp algorithm, as a result, the approach accuracy and the generalization ability of the network were extremely improved

    在對前饋神經網路的訓練中，使用參數自適應方法實現了學習率、慣性因子的自我調節，以避免系統誤差陷入局部最小，加快網路的收斂速度；提出了優化bp網路結構的實驗研究方法，並給出了有關隱含層數和節點數選擇以及再學習策略引進的研究結果。將該演算法同傳統bp演算法的預測偏差平方和進行比較，結果證實網路的逼近精度及泛化能力均得到了極大的提高和改善。
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