散射

We calculate its radialization correction and make the correlative discussion,obtain the cross section of electron-antielectron collision under chain approximation,and compare the tree-level cross section with the cross section under chain approximation.

对其辐射修正作了相关的计算和讨论，从而得到了电子-正电子碰撞在链近似下的散射截面，并与最低阶的散射截面作了比较

The 1-D analytic formulae of direct radiant exchange area s and matrix expressions of total radiant exchange area are given taking account of the scattering effects of sharing media to calculate simulatively the radiant exchange areas in an 1-D system having sharing media.

考虑参与介质的散射作用，给出一维辐射直接交换面积解析式和辐射全交换面积矩阵表达式，模拟计算了含有散射介质的一维系统辐射热交换问题。

A method is presented with which instantaneous PAR can be calculated with high accuracy from Moderate Resolution Imaging Spectroradiometer products and Digital Elevation Model.

该方法是对普通的大气传输模型进行简化，在模型中分别考虑了削减光合有效辐射的5个主要因子：瑞利散射、臭氧和水汽吸收、气溶胶散射以及地表和大气间的多次反射。

In this paper, the bovine serum albumin-β-mercaptoethanol-sodium dodecylbenzene sulphonate system was studied by resonance light scattering technique. Based on the RLS intensity difference between β-ME-SDBS system and BSA-β-ME-SDBS system, a simple assay for BSA was developed.

通过测量β-巯基乙醇-十二烷基苯磺酸钠-牛血清白蛋白体系的共振光散射强度，建立了一种测定BSA的快速、简便的共振光散射光谱法。

It was based on the enhancement of the intensity of RLS by the synergistical action of phloxine B,fsDNA and cetyltimethylammonium bromide.

研究了阴离子染料荧光桃红 B对鱼精脱氧核糖核酸和阳离子表面活性剂溴化十六烷基三甲铵的共振光散射光谱有协同增强作用，建立了一种定量测定fsDNA的灵敏度高、操作简便的共振光散射方法。

A highly sensitive resonance light scattering method for the determination of fsDNA was developed. It was based on the enhancement of the intensity of RLS by the synergistical action of phloxine B, fsDNA and cetyltimethylammonium bromide.

研究了阴离子染料荧光桃红B对鱼精脱氧核糖核酸和阳离子表面活性剂嗅化十六烷基三甲按的共振光散射光谱有协同增强作用，建立了一种定量测定fsDNA的灵敏度高、操作简便的共振光散射方法。

The backscattering lights will increase if the laser power increase. The useful signal will be merged in the powerful backscattering lights so that the targer can't be detected and recognized.

随着激光功率的增加，后向散射光也随之增加，有用的信号甚至会被强大的后向散射光所淹没，不能探测和识别目标。

A highly sensitive and selective assay method of biological macromolecules is proposed based on the measurements of BRLS signals at water/tetrachloromethane (H2O/CCl4) interface.

本文在普通RLS技术的基础上，设计了后向光散射(Backward resonance lightscattering，BRLS)信号检测装置，通过检测后向的共振光散射信号，实现了对生物大分子的高灵敏及高选择性分析。

In order to know the evolutionary relationships between false vein, ISC, and VSC in Pteridaceae, 19 grnera and 82 species in Pteridaceae were sampled in this study; silica deposition types, ordinary epidermal cell morphology and veinal epidermal cells morphology of these species were surveyed. On the other hand, a convenient method was developed for this goal. In this method, a tabletop SEM with backscattered electron detector accompanied by post-cooling method was used.

为进一步探讨凤尾蕨科假脉、脉间矽异形细胞与脉上矽异形细胞之间的关系及其於凤尾蕨科内的演化，本论文选取19属82种的凤尾蕨科植物，观察其叶表面之二氧化矽堆积型式、一般表皮细胞形态以及脉上表皮细胞形态；同时，也开发出利用侦测背向散射电子之桌上型扫描式电子显微镜配合后冷却技术(post-cooling method)之快速检测法，该方法利用背向散射电子讯号强弱与平均原子数(average atomic number， Z number)之相关性得到矽异形细胞与一般表皮细胞具有明显对比之影像。

In this paper, numerical computations are made on the scattering of ultrasonic pulse waves with different centroid frequencies of 100 kHz,500 kHz and 1 MHz in fluid-filled finite-length perforation by using Finite Element Method,where three kinds of models of perforation bottom, I.E., flat bottom, stepped bottom and acuminated bottom,are assumed to simulate the practical bottoms of perforation.

乔文孝，杜光升。射孔孔眼中散射超声脉冲波的FEM模拟。测井技术，2001，25（2）：96～100 采用有限元素法，分别数值计算了平底孔道、台阶式孔道和尖劈状孔道等3种孔眼模型中不同中心频率(100 kHz、500kHz、1 MHz)的散射超声脉冲波。

The X-ray diffract was used to analyze the crystal structure of the composite. Results show that after the talc was treated with blend coupling agent, the crystal structure of talc changed, and effect Intercalation phenomenon.

通过X射线衍射分析可知，用混合偶联剂对滑石粉进行预处理后，滑石粉晶体结构发生改变，产生了插层现象，使PP／滑石粉复合材料为纳米复合材料。

An authentic Maui wedding might require the services of a 'kahu', which is a Hawaiian minister.

毛伊可能需要一个真实婚礼服务'kahu'，这是夏威夷部长。