scattering cross section造句
例句與造句
- Incoherent scattering cross section
非相干散射截面 - Inelastic scattering cross section
非彈性散射截面 - Elastic scattering cross section
彈性散射截面 - Partial scattering cross section
部分散射截面 - Bound scattering cross section
束縛散射截面 - It's difficult to find scattering cross section in a sentence. 用scattering cross section造句挺難的
- Study of interaction potential and differential scattering cross section for he - n
2碰撞體系相互作用勢(shì)及微分散射截面的研究 - Calculation of scattering cross section of the electron and the second period element atom
低能電子與第二周期元素原子碰撞截面的理論計(jì)算 - By applying the boundary conditions and the orthogonality of spherical vector wave functions , an adequate number of relations between the unknown coefficients is generated . from all these discussions , the scattered fields and normalized scattering cross sections are computed
通過(guò)以上討論，即可建立起足夠多的決定各展開(kāi)系數(shù)的方程，求出散射場(chǎng)系數(shù)，進(jìn)而求出散射場(chǎng)及散射截面。 - Thirdly , the cluster - cluster aggregation model is used to study the possible structure of aggregated smokescreen particle . we also develop the mathematical radiation extinction model of aggregated particle based on t - matrix method . associated with monte carlo method , another computer program is designed to simulate the extinction cross section and scattering cross section of actually aggregated particle
本文還將“凝聚體?凝聚體”凝聚模型應(yīng)用于煙幕凝聚現(xiàn)象研究，模擬出了煙幕凝聚粒子的可能結(jié)構(gòu)，并且根據(jù)t矩陣方法發(fā)展了凝聚粒子消光特性的計(jì)算方法，結(jié)合montecarlo方法，編寫了能夠模擬實(shí)際煙幕凝聚粒子消光截面、散射截面的計(jì)算程序。 - This paper has studied the mean attenuation , scattering , and back scattering cross sections of groups of small rotating spheroids about characteristics of microwave scattering when their rotatory axes are oriented at random in any direction in 2d plane and 3d space respectively under the condition of normal distribution , and that those physical quantities are changed with different variance , expectation and wave lengths of incident electromagnetic wave
本文研究旋轉(zhuǎn)軸方向分別在平面內(nèi)和空間中隨機(jī)取向呈正態(tài)分布時(shí)的小旋轉(zhuǎn)橢球粒子群的平均衰減截面、平均散射截面、平均后向散射截面等微波散射特征，以及這些物理量隨軸向分布期望、方差及入射電磁波波長(zhǎng)的變化。 - This work gives amsotropy surfaces of three collision systems he - hf , he - hcl , he - hbr . comparing theoretical results with experimental ones has carried out the discussion on feasibility of adapted potential model . all differential cross sections ( dcs ) , partial wave cross sections ( pcs ) and total scattering cross sections ( tcs ) have been achieved by using close - coupling approximation method to calculate the three systems , and results above have also been discussed and analyzed
首先，具體介紹了理論計(jì)算方法? ?密耦近似方法，接著討論了各種勢(shì)能模型的優(yōu)缺點(diǎn)，利用孫桂華改進(jìn)的勢(shì)能模型? ? ms勢(shì)，分別給出了he - hf 、 he - hcl 、 he - hbr三個(gè)碰撞體系的各向異性勢(shì)能面，并結(jié)合計(jì)算結(jié)果與實(shí)驗(yàn)結(jié)果的比較，對(duì)所采用的勢(shì)能模型的可行性展開(kāi)了討論；用密耦近似方法對(duì)he - hf 、 he - hcl和he - hbr三個(gè)碰撞體系進(jìn)行計(jì)算，得出了各種微分散射截面、分波截面和總散射截面，并將計(jì)算結(jié)果進(jìn)行討論和分析。 - Among them the paper makes it a point to introduce the calculation method and relevant model of radar system which is used to guarantee rcs measuring accuracy , and data - processing subsystem construction , software scheme , requirement analysis with detailed analysis indication and data fusion method , etc . the measuring data and statistics results of scattering cross section ( rcs ) ( including : rcs - time , rcs - range , rcs - statistics characteristics parameters ) are finally presented in the paper
其中重點(diǎn)介紹了為保證rcs測(cè)量精度要采用的雷達(dá)系統(tǒng)的標(biāo)校方法、使用的相關(guān)模型，以及rcs測(cè)量系統(tǒng)的數(shù)據(jù)處理分系統(tǒng)結(jié)構(gòu)、軟件方案、需求分析和詳細(xì)分析說(shuō)明及數(shù)據(jù)融合方法等。最后給出散射截面( rcs )的測(cè)量的數(shù)據(jù)和統(tǒng)計(jì)結(jié)果(包括： rcs ? ?時(shí)間、 rcs ? ?距離、 rcs ? ?統(tǒng)計(jì)等特性參數(shù)) 。 - The main works and results are as follows : 1 . by use of one order multiple scattering theory , light scattering and reflection by a single coating layer is analyzed . the variance of radiation intensity , bidirectional reflection distribution function ( brdf ) and laser radar scattering cross section with coating layer parameters is given , with the effect of rough contrast on bidirectional reflection distribution function
本文主要研究了單層和多層涂層結(jié)構(gòu)介質(zhì)的光散射特性，以及近場(chǎng)條件下復(fù)雜目標(biāo)對(duì)激光波束的散射，其主要工作如下： 1 、采用一階多重散射近似理論分析單層涂層對(duì)光波的散射和反射，計(jì)算并討論了輻射強(qiáng)度、雙向反射分布函數(shù)和單位面積激光雷達(dá)散射截面隨涂層結(jié)構(gòu)參數(shù)的變化規(guī)律，數(shù)值分析了粗糙基底對(duì)雙向反射分布函數(shù)的影響。 - It is also found by comparing with different mean cross sections that there is similar variability for the mean attenuation and scattering cross sections as a function of the different variance , expectation and the wave lengths , but there is much difference for the mean scattering and back scattering cross sections especially when the rotatory axes are oriented randomly in normal distribution in oxy plane or oyz plane and 3d space
還對(duì)比各種平均截面可知：對(duì)于平均衰減截面、平均散射截面兩者隨方差、期望及波長(zhǎng)有著相似的變化規(guī)律；但平均散射截面、平均后向散射截面之間，有著很多的不相同，特別在旋轉(zhuǎn)軸在oxy平面、 oyz平面內(nèi)和在空間oxyz內(nèi)隨機(jī)正態(tài)取向時(shí)的情形。 - By driving expressions and using the method in numerical integration , the results of numerical calculations are analyzed , discussed and contrasted with different conditions , and they showed that there are evident differences in the mean attenuation , scattering , and back scattering cross sections of oblate spheroid particles when the variance is so small that it is near to zero namely it is the same as the rotatory axes are parallel with one direction and when h - polarized and v - polarized incident waves happened . these differences are depended on the relative differences in the average orientation of rotatory axes and the polarized directions of incident wave
通過(guò)公式推導(dǎo)和數(shù)值積分計(jì)算并對(duì)結(jié)果做了討論和分析，對(duì)比各種情況表明：扁橢球粒子群在方差很小接近為0時(shí)，與粒子群旋轉(zhuǎn)軸一致取向的情況相同，入射波水平極化和垂直極化時(shí)的平均衰減截面、平均散射截面、平均后向散射截面有明顯的不同，這決定于旋轉(zhuǎn)軸平均取向和入射波極化方向的相對(duì)差異。
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