查询词典 light intensity

The reporter vectors which contain the luciferase gene and dioxin response elements are then transfected to different cell lines. When used together with a sensitive luminometer, the cells express different light intensity depending on their dioxin concentrations.

针对此传递路径的特色，我们建立两个含有戴奥辛识别单元和萤光基因的表达质体，分别送入不同的细胞株中，藉由萤光的定量做出一组标准曲线图，使其成为侦测环境污染物的工具。

From the perspective of matter wave in quantum mechanics, this paper, by describing the wave function of microcosmic particle and using probability wave, derives the distributive regularity of light intensity of the single slit diffraction and circular aperture diffraction.

光具有波粒二象性，从量子力学的物质波出发，利用描述微观粒子的波函数，采用几率波的方法，导出光的单缝衍射和圆孔衍射的光强分布规律，所得结果与波动光学中用惠更新－菲涅耳原理得到的结果一致。

The light intensity is symmetrical on the normal. The spatial distribution of output laser is connected with the mean free path of photons in random medium.

激光出射的空间分布与无序介质中光子平均自由程有关，据此可通过测量激光出射的空间分布来反推光子平均自由程。

Said method includes the following steps: firstly, adopting dipotassium hydrogen phosphate, magnesium sulfate, calcium chloride, citric acid, ammonium ferric citrate, disodium EDTA, sodium carbonate and minor element solution A5 to prepare culture liquor of nostoc according to a certain ratio; then controlling temp. light intensity and deration condition of the culture liquor to make culture of nostoc; third ste, harvesting nostoc; fourth ste, extracting nostoc polysaccharide; and fifth step, purifying, harvesing and drying nostoc polysaccharide.

首先是配制葛仙米培养液：采用磷酸氢二钾、硫酸镁、氯化钙、柠檬酸、柠檬酸铁铵、乙二胺四乙酸二钠盐、碳酸钠，微量元素溶液A5按比例配制；其次是葛仙米的培养：控制温度、光强、光质、培养液通气条件；第三是葛仙米的收获；第四是葛仙米多糖的提取；第五是葛仙米多糖的纯化、收获与干燥。

On the basis of the fundamental theory of information optics, the Fourier transform and an iterative approach are used to calculate and analyze the point image of an optical imaging system the Point Spread Function (PSF of light intensity, to retrieve the phase of imaging system and then to obtain the wave font of the optical system.

基于信息光学基础理论，采用傅里叶变换和迭代算法计算分析了光学成像系统的星点图像（光强点扩散函数，PSF），实现了对光学成像系统位相的复原，获得了波像差信息。

The transfer characteristic relates the output to the light intensity.

图中的转移特性曲线指出其输出与光强度是有关连的。

The results showed that the diurnal changes of photosynthesis of S. chinensis in tile overstory took on "double-peak" curve with remarkable midday depression. The midday depression was mainly due to non-stomata1 limitations. On the contrary, the diurnal changes of photosynthesis of S. chinensis in the understory took on "one-peak" curve with low Pn. The maximal Pn was only half of that of S. chinensis in the overstory. The correlation analysis showed that the limiting factor for this low Pn might be light intensity (p=0.001). Compared with its accompanying plants, S. chinensis was in a disadvantaged status in the community with low photosynthetic capacity, water use efficiency, and the ratio of photosynthetic rate to respiration rate.

结果表明：夏蜡梅冠层的光合速率日进程呈"双峰"曲线，有明显的"午休"现象，经分析其"午休"的原因主要是由非气孔因素引起的；林下夏蜡梅则表现为"单峰"曲线，净光合速率较低，最大净光合速率不及冠层的1/2，相关分析结果表明其最重要的影响因子是光合有效辐射(p=0.001)；与其它伴生植物相比，夏蜡梅的日均光合速率、最大光合速率、水分利用效率和光合速率／呼吸速率都明显偏低，在群落竞争中处于不利地位。

Especially, as an important consequence, the light intensity on the transverse plane perpendicular to the propagation axis is given.

作为一个重要的特例情况，文中还给出了横截面上的光强公式，这个结果可用来对非傍轴光束的强度二阶矩及M2因子等物理量进行研究。

The value of displacement is determined according to the change of light intensity with photocell.

根据该原理，位移分辨率的理论值可达10-9m，实验测量的位移分辨率为10-8m。

The long exposure photodiode has higher sensitivity, but is saturated at a lower light intensity level.

长曝光时间之光电二极体具有较高的感光度，但却会在较低的光强度等级达到饱和。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。