查询词典 diffraction

No research was reported on the infra-red spectrum and X-ray powder diffraction of 〓.

所制备的〓的红外吸收峰及X-衍射图谱与文献数据基本一致。

A new method of inscribing diffraction gratings by using a focused near-IR 800 nm femtosecond laser ablating gold film on glass substrate was reported.

提出了一种新的制备光栅的方法，利用800 nm的飞秒激光扫描蒸镀在石英玻璃衬底表面的金薄膜，通过烧蚀金薄膜在衬底表面形成衍射光栅。

Inscribing diffraction grating by femtosecond laser ablation of metal film on glass substrate .

飞秒激光烧蚀玻璃基质金属薄膜直写衍射光栅。

Its characteristic is through impulse stimulation by using the grating width, diffraction series, laser wavelength, and the Doppler frequency shift to determine the shock velocity and the shock acceleration instantaneous value.

对差动式光栅激光干涉冲击校准装置的原理作了介绍，特点是使用冲击激励，通过光栅的栅距、衍射级数、激光波长及激光的多普勒频移来最终确定冲击速度和加速度的瞬时值。

Results on existence and uniqueness of the solution for the diffraction problem are obtained by variational method and integral equation method, respectively.

考虑一类具有周期系数的Helmholtz方程，它是一类衍射光栅问题的数学模型，研究这类问题的数值解法。

By using the analytical formula and diffraction integral formula,some numerical simulation comparisons are done,and it is shown that the results of the two methods are completely coincident.

数值计算显示，应用解析表达式所得的结果与应用衍射积分公式所得的结果完全一致。

Based on the Rayleigh-Sommerfeld diffraction integral and complex analytical signal representation,the free-space propagation equation and its Fourier spectrum for ultrashort chirped pulsed Gaussian beams are derived,and the far-field analytical electric field and spatial intensity are presented.

基于瑞利-索末菲衍射积分，使用复解析信号法推导出了啁啾脉冲高斯光束在自由空间中的传输方程及其傅里叶谱，给出了远场的光场和空间光强的解析式，研究了啁啾参数C对脉冲光束传输的影响。

The intercalate, exfoliate and dispersing status action of montmorillonite in PET phase were investigated by X-ray diffraction, transmission electron microscope and scanning probe microscope.

利用扫描探针显微镜研究了复合材料的微观结构，首次直观地观察到层状蒙脱土在聚合物中的形态结构。

The in situ X-ray diffraction technique is an extremely valuable tool for studying intercalation compounds of gra...

原位X射线衍射技术在研究石墨层间化合物方面是一种非常有用的工具。

The in situ X-ray diffraction technique is an extremely valuable tool for studying intercalation compounds of graphite.

原位X射线衍射技术在研究石墨层间化合物方面是一种非常有用的工具。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。