When the intensity of the irradiation light is constant, the cyclization and the cyclorevsion reaction belonged to zero order reaction and first order reaction, respectively.
其中，由于二芳基乙烯化合物具有优良的物理化学性质和光致变色特性，从而在高密度光存储中最具应用潜力而成为新一代光存储材料的研究热点。
Integrating the sound intensity vector on the area which surrounds a sound source gets the sound power of this sound source. Since the integral of the sound power of the sound sources which are not enclosed by the area is zero, one could measure the sound power in ordinary environments correctly by measuring sound intensity.
对于一个声源，只要将其包络面上的声强矢量作积分，就可以求出被围声源的声功率，而测量区域之外的干扰噪声得以抵消，因此可以在普通环境下能准确地测定声源声功率。
In his works, Debussy for stringed instrument tone, he not only using multiple division method will cross the stringed instrument zero, also specially added with weak sound, music in extremely weak intensity seems dark and mysterious under the sea, the dark before dawn, hazy, strange, the terror of the atmosphere.
在作品中，德彪西对于弦乐器格外关照，他不仅采用多重分部的方法将弦乐器划整为零，还特意加用弱音器，使音乐在极弱的力度下显得异常暗淡、神秘，表现了黎明前海的阴暗、朦胧、怪异、恐怖的气氛。
Simulation result shows that by introducing an optical MC payload, the available extinction ratio value of a FSK and intensity modulation orthogonal modulation system can be improved from 5 to 9 dB for system optimization, exhibiting great advantages over the traditional non-return-to-zero payload.
研究结果表明，由于对数据净荷采用了光域编码，FSK/IM正交调制系统的有效消光比得到了显著提高，与传统方式的非归零编码相比该消光比值由5dB提高到了9dB。
It is seen that the behaviors of light pressure forces with even order are similar to the zero order force while that of odd order forces are opposite to the zero order one. Though the whole effects of the odd order and even order harmonic forces are almost destructive with each other for strong intensity, it is quiet different compared to the case of weak intensity.
如果通过激光冷却能使原子速度降至很小甚至为零，光压力的作用将使原子被较稳定地囚禁于激光驻波场的节点和反节点处，其稳定程度取决于该处光压力曲线负斜率的大小、对应势能的势阱深度以及动量扩散系数的大小，因此，如何在实验中合理选择激光强度、失谐量等显得尤为关键。
The diffraction theory of Kirchhoff is applied to the four-pinhole aperture diffraction screens, the intensity, the zero-contour of the real and imaginary parts of complex amplitude and the phase distribution in deep Fresnel diffraction region are simulated, and it is found that the bright spots in interference field show central symmetry distribution. When the observation plane close to the diffraction screen, the zero-value points of light intensity can form line segment, on which the eccentricities of the light intensity isoline are close or equal to 1, the intensity changes very fast on both sides of the zero-line of light intensity.
利用基尔霍夫衍射理论计算了四圆孔径衍射屏在菲涅尔深区形成的的干涉光场的强度、零值线和相位的分布，发现干涉光场亮斑关于中心呈对称分布，在距离衍射屏较近的观察面上，光强值为的零点组成光强零值线段，该线段上光强等值线的离心率都接近或等于1，其两侧的光强值变化非常剧烈。
For weak intensity, the higher order harmonic forces can be neglected. If the velocity of atoms is near to zero, the light forces will tend to confine the atoms near to nodes and antinodes.
量子纠缠作为多粒子叠加的基本物理问题，在新兴的量子信息领域有着重要的应用前景，其显著的应用就是未知量子态的隐形传送。
Based on zero crossing and limited amplitude detection theory, the pretreatment part, with low power consumption and without A/D converter, can not only detect the ship radiated noise but also estimate its acoustic intensity.
由预处理模块利用过零检测和幅度检测原理探测信号，它不仅是无A／D、低功耗的，而且能估算出噪声强度。
The intensity of the magnetic field needed to reduce the magnetization of a ferromagnetic material to zero after it has reached saturation.
磁场的强度，为在强磁性的物质达到饱和之后，把它的磁化作用缩小到零所必需。
At zero intensity, the last glimmer of the light vanishes into the atoms, and the polariton comes to a dead stop.
到了控制光强度归零之时，光的最后一丝光芒都消逝到原子里，极化声子就完全停止了。
The principle and method for measuring the resistance under zero background magnetic field, critical current density and mechanical intensity are presented and some results are given.
本文介绍了其零场电阻，临界电流密度及机械强度性能的测量原理和方法，并给出了测量结果。
This algorithm based on the combination result of gradient and zero crossings is presented which the image intensity of neighborhood region of pixel is well estimated by LS-SVM with mixtures of kernels and the gradient operator and zero crossing operator are obtained by LS-SVM based on mixtures kernel function.
该方法利用LS-SVM对图像像素邻域的灰度值进行曲面拟合，通过混合核函数推导出图像的梯度和零交叉算子，并结合梯度算子和零交叉算子实现了图像边缘定位。
Simulation results show that the method is very effective for five different primary ion distributions. Especially, the halo intensity factor of full gass distribution become zero after control.
数值模拟结果显示，该方法能有效实现5种不同初始分布强流离子束的束晕-混沌控制，尤其是该方法控制后全局高斯分布的晕度也达到了零。
Using zero field truncation technique COS disc (the center spot) is obtained from COS beam, the traversal intensity distributions of COS disc through different fractional apertures and fractional Gauss phase apertures are simulated numerically in the far field.
运用零场截取技术由COS光束得到COS芯（中央斑），数值模拟了COS芯通过不同的分数高斯光阑和分数高斯相位光阑后，在远场处的横向光强分布特性。
This difference affects light intensity and frequency of the modes, and as a result leads to zero drift.
损耗影响激发模的光强和频率，在陀螺中损耗不同将会导致零漂。
On the basis of structure design of optical system and parameter option of optical components, the visibility of interference fringe with zero background intensity is optimized.
通过对光学干涉系统结构设计和元件参数选择，最大限度地优化了干涉条纹的可见度，并设计出零背景光强标准硅球直径精密测量系统。
Logarithmic Transformation to Joint Power Spectrum can enhance the intensity of high frequency component, improve the modulation degree, weigh down the zero-order diffraction, and increase the recognition efficiency of joint transform correlation system.
为增强联合功率谱的高频成分，改善其调制程度，可对功率谱进行对数变换，从而有效保留更多的高频成份，压低零级衍射光斑，提高联合变换相关器的识别能力。
For the zero-field-cooling and the field-cooling magnetization processes, respectively, the stress intensity factors at the edge-crack tip of HTS in the decreasing process of the external magnetic field are analyzed by the finite element method.
分别针对零场冷（ZFC）和场冷（FC）磁化过程，利用有限元方法分析了在外磁场减小过程中边缘裂纹尖端的应力强度因子。
The results showed that, when the soil temperature fell below zero centigrade the carbohydrate content and soluble protein in roots increased after 2.0 kV · cm-1, 3.5 kV · cm1 and 4.5 kV · cm-1 electric intensity treatments to seeds, respectively;
结果表明：电场强度为2.0kV.cm-1、3.5kV.cm-1和4.5kV.cm-1时，地温降到零下摄氏度时，其根系碳水化合物和可溶性蛋白质含量增加；
Finally, the variation of the normalized covariance function of intensity with different strengths of turbulence under zero inner model is discussed in detail.
最后讨论了零内尺度模型下归一化强度协方差函数随湍流强度的变化情况。