forward scattering 中文意思是什麼

forward scattering 解釋
前方散射
  • forward : adv 1 向前，前進 （opp backward）。2 【航海】在船頭，向船頭（opp aft）。3 今後，將來。4 出來，出...
  • scattering : adj. 1. 分散在不同方向的，分散在不同范圍的。2. 廣泛擴散的。3. （選票）數量分散的，不集中的。n. 1. 散亂。2. 在媒介質中的散播。3. 【物理學】散射。adv. -ly
  1. 1. in the lwfa simulation, we discussed mainly the influence of " forward stimulated raman scattering " on wakefield generation and electron acceleration

    在lwfa中，我們主要研究「前向受激raman散射」對尾流場加速電子的影響。
  2. Considering the diffuseness of the n - n scattering in the forward direction results in an increased reaction cross section. and also the angular distributions calculated in the glauber theory including these two corrections are in good agreement with the experiment data. in the investigation of the halo nucleus reaction with a loosely bound structure, one has to consider the strong spatial correlations among its constituents

    考慮了低動量轉移的核子?核子兩體散射在朝前方向上的彌散，使計算得到的反應截面增大，而且我們從彈性角分佈的分析中得到考慮了有限力程修正的效應無論是在峰的位置還是角分佈的絕對值都能更好地符合實驗。
  3. The optical - limit glauber theory has been of great success in describing the stable nucleus scattering at high energies. as it is extended to the nucleus scattering at low and intermediate energies, the modification of the coulomb field to the effective impact parameter and the diffuseness of the nucleon - nucleon ( n - n ) scattering in the forward direction has to be taken into account

    其中光學極限近似的glauber模型能很好地描述高能小角度的穩定核散射，進一步推廣應用於研究中低能穩定核散射時，需要考慮庫侖相互作用對有效碰撞參數的修正和核子?核子兩體散射在朝前方向的彌散。
  4. We found the " forward stimulated raman scattering " will be excited if the pulse length is greater than plasma wave length. the " forward stimulation raman scattering " decreases the phase velocity and the amplitude of the wake wave which will lead to the reduction of maximum kinetic energy of the electrons trapped

    結論是：當脈沖長度接近等離子體波長時，稀薄等離子體將發生「前向受激raman散射」 ，它使脈沖后沿拉長，導致尾流場的相速度變小，以至於被尾流場「捕獲」的電子最大動能大大下降。
  5. In the first part, the basic knowledge of particle scattering in meteorology and physics was introduced. the particles to be discussed include aerosol particles, fog droplets and raindrops and the em wave band in the discussion is near - infrared. in the second part, the mie theory was briefly reviewed and was applied to investigate the scattering characteristics of spherical atmospheric particles, the result shows that in the visibility measurement meter using forward - scattering method, when the working wavelegth is between 0. 8 m ~ 2 m, the scattering angle is between 25 ~ 40, the distinguishability and the relative scattering intensity would be better than those under other conditions. in the third part, the superellipsoid was used to describe a wide range of shapes such as spheres. ellipsoids and cylinders. an improved t - matrix method which can be used to calculate arbitry shaped particle ' s scattering field was introduced, and the scattering characteristics of non - spherical atmospheric particles was investigated with this method

    計算結果表明，從相對散射強度、同一方向上不同粒子散射的可區分程度來看，在散射式能見度探測儀器中，工作波長介於0 . 86 m 2 m ，探測角度選取前向25度40度時，探測的結果將會是比較理想的。第三部分中，使用超橢球方程來統一描述各種非球形粒子的形狀，然後使用t矩陣方法計算了一些形狀的非球形粒子的近紅外散射特性。另外，在本文中還針對球形粒子的散射場提供了一種三維可視化方法，使對散射場強度的空間分佈的理解更加簡單，直觀。
  6. Forward scattering angle

    前方散射角
  7. According to the mean size measurement based on diffraction, we put forward a new method by calculating the ratio of two scattering light intensity at different scattering angle, which can solve the problem caused by the diffraction method

    文中根據衍射法求取平均粒度的方法，提出了用兩個不同散射角的散射光強比求取平均粒度的方法，解決了衍射法測平均粒度的缺點。
  8. Using the dsd models and forward scattering amplitude computed by the least squares fitting method, the specific attenuations at l - 400ghz have been computed and analyzed, the parameters of " power law " relation between specific attenuation and rainfall rate are obtained. the specific attenuations in qingdao, guangzhou and xinxiang are compared with itu - r specific rain attenuation models

    利用平均雨滴尺寸分佈和點匹配法計算的雨滴的前向散射數據計算和分析了青島、廣州和新鄉地區1 ? 400ghz特徵雨衰減特性，得到了特徵雨衰減與降雨率的指數關系參數，並與itu - r （ internationaltelecommunicationunion - radiocommunication ）特徵雨衰減模式進行了系統的比較研究。
  9. Simulation results for the forward projection of ot are presented for the cases of strong and low scattering media respectively based on monte - carlo ( mc ) method along with some discussions

    應用monte - carlo （ mc ）模擬方法，分別給出了強、弱兩類散射介質中光學ct正向問題的數值模擬結果，並將其與基於擴散方程的數值計算結果進行了比較。
  10. Different with the traditional ifog, light beams within mz - ifog transmit along the forward direction, which avoid the kerr effect noise and the interferometric noises brought by the backward scattering and reflecting light. mz - ifog also gains a high using efficiency of light source and a strong output signal. the principle of mz - ifog is analyzed

    與傳統sagnac干涉式光纖陀螺不同，此光纖陀螺結構簡單，兩路光信號採用前向傳輸，避免了後向傳輸光對光源的影響，也避免了後向散射、反射光帶來的相干噪聲以及光學kerr效應噪聲，光功率利用率高，輸出光功率大。
  11. Near - forward scattering

    接近向前散射
  12. Based on this, we bring forward a availability and viable distributed fiber sensing for temperature and strain system that based on spontaneous brillouin scattering, coherent self - heterodyne botdr, and done part experimental study

    在此基礎上，提出了一種有效可行的基於布里淵散射的分散式光纖溫度/應變傳感系統? ?相干自外差的布里淵散射分散式光纖傳感系統，並完成了部分實驗研究。
  13. Estimation of the moving parameters for objects in the bistatic forward scattering barrier radar

    雙基地前向散射柵欄雷達的目標運動參數估計
  14. In comparison of the numerical results of total multiple scattering with the forward - backward method, excellent agreement is obtained

    將考慮多次散射的數值計算結果與前後向迭代方法的數值結果做了比較，兩種方法的計算結果基本一致。
  15. The calculated double differential cross section of the new model is compared with experimental data and previous scdw calculations with single particle model. the calculated cross sections are larger than those given by previous calculations at backword and forward angles and smaller than those given by previous calculations near the quasi - elastic scattering ( qes ) angle. the agreement with experimental data is much improved

    新模型的雙微分截面計算結果與實驗值以及以前採用單粒子殼層模型時的計算結果進行了比較，表明cdfm模型的引入對scdw模型的計算結果有較大的改進，使其在大角度和極小角度區域有所增大，在準彈性散射角附近有所減小，從而能更好地與實驗值相符合。
  16. The validty of the algorithm is validated by the programming. the result of the reconstruction has been shown in chapter 5. and in conclusion i analyze the problem existed in using ga to optimize the electromagnetic inverse scattering and put forward the next research direction

    最後給出遺傳演算法對非均勻介質進行重構的結果，在結論中分析用了遺傳演算法對非均勻介質進行重構既存在的問題，給出下一步工作的展望。
  17. This paper particularly focuses on the theory and implementation of how to inverse underground structure by comparing incident wave and scattering wave, and recording the spare time of the waves, and forward calculations for igneous, metamorphic and sedimentary rocks are carried out to verify the feasibility

    著重論述了利用慢衰減電磁波的入射波和散射波的振幅關系，以及電磁波的走時關系反演地下介質參數的基本原理及方法，同時，針對火成巖、變質巖和沉積巖，通過正演理論計算，說明了慢衰減電磁波測深的可行性。
分享友人
分享到 Line

分享到臉書