光强度
- 与 光强度 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Results show that with the increase of the convergence angle,light field in biological tissues and the reflectance enhanced in the beginning,after reaching the peak value,its intensity decrease quickly and the position of its maximum deflects from central position.
结果表明:随着光源会聚角的增大,组织内光场分布和组织漫反射的分布趋于集中,当大于一特定角度之后,光场强度的分布区域迅速扩大,强度迅速下降,同时强度出现极大值的位置开始偏离中心位置。
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Secondly, we provide a two-level model to depict the one-, two-and three-photon fluorescent process and with it to calculate the one-, two-and three-photon fluorescence intensity dependence of the incident excitation intensity and time. We study the fluorescence intensity when excitation light's time distribution are square pulse、Gaussian pulse and sech pulse. We find that the influence of excitation light's time distribution on the two- and three- photon fluorescence peak intensity is larger than the one-photon fluorescence peak intensity. Two-level model can account for the behavior of saturation fluorescence.
然后用二能级模型解释了单、双、三光子激发原理,在理论上推导出了单、双、三光子吸收诱导荧光强度与脉冲强度以及脉冲作用时间的关系,并进一步研究了入射光时间分布分别为矩形、高斯型、双曲正割型时激发溶解在氯仿溶液中的C22H22N4O样品所产生的荧光峰值光强,结果表明激发光的时间分布对双、三光子荧光峰值强度的影响比对单光子的影响要大。
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The results show:(1) that the dynamical properties in the system depend on the degree of entanglement of the initial two identical two-level entangled atoms and the intensity of the coherent optical field, and the atomic dipole moment can be completely squeezed via choosing optimal degree of entanglement of the initial atoms in the feeblish optical field;(2) that the quantum properties of the system also depend on the degree of entanglement of the initial two identical two-level entangled atoms and the intensity of the coherent optical field, and the radiation field can be effectively squeezed via choosing optimal degree of entanglement of the initial atoms in the feeblish optical field.
结果表明:(1)相干态光场的强度和两原子的初始纠缠度对原子的动力学行为有很大的影响。原子布居的振荡频率及幅度和原子偶极压缩的演化规律与光场强弱和两原子初始纠缠度相关联。在弱光场下,选择合适的两原子初始纠缠态,原子偶极矩可以完全被压缩。(2)相干态光场的强度和两原子的初始纠缠度对光场的量子特性也有很大的影响。光场的二阶相干性质和光场的压缩效应均与光场强度和两原子纠缠度相关联。在弱光场中,选择合适的两原子初始纠缠度,光场压缩深度和时间可达到最大。
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The output dynamical characteristics are mapped as a function of the power of optical injection and the detuning frequency.
本文给出了其输出特性随注入光强度和频率失谐量变化的一系列动力学特征图。
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The output dynamical characteristics are mapped as a function of the power of optical injection and the detuning frequency.
本文给出了其输出特性随注入光强度和频率失谐量变化的1系列动力学特征图。
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The results show that BS 460MPa grade reinforced bar can be produced all from Q235 or 20MnSi billet by the remained heat treatment process but the production cost of the former is lower. When the water pressure minishes, the intensities of reinforced bar reduce; the higher the temperature at the entrance of cooling bed is, the lower the intensities are. Therefore, the commendatory process parameters are that five stages coolers should be opened, water pressure should be all 1.8~2.0MPa and the temperature at the entrance of cooling bed of Q235 reinforced bar should lower than 650℃. The typical microstructure(Q235): the surface layer is tempered sorbite; the transition layer is pearlite and ferrite, and the partial ferrite is acicular; the core is pearlite and ferrite and the grain fineness is 8~10 grade. The yield strength is reduced by 10~20MPa after natural ageing and it can be simulated by artificial ageing(100℃×2h or 200℃×1h).
结果表明,Q235和20MnSi钢都可以利用余热处理工艺生产出性能合格的钢筋,但前者的生产成本较低;水压减小,钢筋强度降低,上冷床温度越高,强度越低,推荐5段水冷器全开,水压均为1.8~2.0MPa,Q235钢筋的上冷床温度应控制在650℃以下;钢筋典型的金相组织(Q235)表层为回火索氏体,过渡层为珠光体+铁素体且部分铁素体呈针状,心部为珠光体+铁素体,晶粒度8~10级;自然时效后屈服强度下降10~20MPa,用人工时效可以模拟自然时效,工艺是100℃×2h或200℃×1h。
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In this experiment, we discuss the effect of parameter on light intensity by means of put in pure Xenon and rare gas mixture.
因为在工业的应用越来越广泛,所以本实验探讨灯管光强度跟灯管内充填气体之间的关系。
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We discovered that the average pretilt angle of liquid crystals can be controlled by adjusting excitation power, and the relationship was found to follow the possible predicted photovoltaic effect.
我们发现液晶的平均预倾角在改变雷射光强度后,受到相当的变化;而且其变化关系与预期的光伏效应相当符合。
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Light intensities required for conversion are very low and it occurs within seconds.
转化所要求的光强度很低,而且它在几秒钟之内发生。
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This catalyst was used for the photocatalytic degradation of methyl orange.
用该催化剂催化降解甲基橙,研究了催化剂用量、甲基橙的起始浓度、溶液pH 值、光强度、溶液中添加金属离子的影响。
- 推荐网络例句
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Plunder melds and run with this jewel!
掠夺melds和运行与此宝石!
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My dream is to be a crazy growing tree and extend at the edge between the city and the forest.
此刻,也许正是在通往天国的路上,我体验着这白色的晕旋。
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When you click Save, you save the file to the host′s hard disk or server, not to your own machine.
单击"保存"会将文件保存到主持人的硬盘或服务器上,而不是您自己的计算机上。