查询词典 diffraction

The crystal structure of the primitive orthorhombic ε'-4Cr phase was determined by single-crystal X-ray diffraction analysis.

用X光单晶衍射的方法成功解析了简单正交ε′-_4Cr相的结构。

Gas Production Engineering Research Institute,Southwest China Oil Gas field Company,Guanghan 618300,China）Abstract: Basic principle of time of flight diffraction method was described. Two scan modes D scan and B scan were discussed and the phase characteristic of oscillogram and grey-scale map was also studied. Formula to calculate the location and size of defects was given. The image analysis was carried on three typical defects on standard blocks.

摘 要：描述了超声波衍射时差法的基本原理，讨论了平行扫查和非平行扫查两种扫查方式，研究了波形图和灰度图两种缺陷图谱的相位特征，推导了缺陷精确定位定量的计算公式，并通过标准试块试验对三种典型缺陷进行了图谱分析。

When the diffraction process is completed the overpressure loading on the front and back faces are essentially equal.

当绕射过程完成时，作用于正面和背面的超压荷载基本上相等。

The Sky-Watcher paraboloidal mirror reflectors and all Dobsonian models feature a four-arm, secondary-mirror bracket with fine supports (0.5mm thick), to reduce diffraction spikes and light loss.

抛物面镜面反射和所有DOB机型采用了四臂中央副镜支撑（ 0.5毫米厚），以减少衍射峰值和减轻光损失。

The structures of the samples were analyzed by X-ray diffraction,and the impedance spectra and electron paramagnetic resonance spectra were measured.

用X射线衍射仪检测了样品的结构，测量了样品的阻抗谱和电子顺磁共振谱。

And we used X-ray diffraction, atomic force microscope, and semiconductor parametric test system (HP 4155C) equipments to analyze the properties of organic thin film and the performance of the device.

并以X光绕射，原子力显微镜，半导体参数测试系统(HP 4155C)等量测仪器来分析有机薄膜及整个元件的特性。

It was found that the Schorl or dravite in schorl-dravite group that is produced from pegmatite and has good crystal degree had a strong intensity of spontaneous polarity by electron-beam bombardment and X-ray diffraction of varying the temperature.

利用电子束轰击结合变温XRD分析发现在Schorl-dravite系列电气石中，产于伟晶岩的，结晶度比较高的Mg电气石或Fe电气石具有较高的自发极化强度。

During the process of peptization and hydrothermal crystallization, the aggregation behavior and the resulting morphology of nanocrystalline titania (TiO2) were studied by X-ray diffraction, scanning electron microscope, and dynamic light scattering techniques.

通过XRD、SEM和动态光散射粒度测定仪研究了胶溶及水热晶化过程中纳米TiO2晶粒聚集行为及形貌。实验结果表明，在胶溶无定形沉淀过程中所形成的大小为10-15nm的锐钛矿型胶粒或金红石型胶粒易定向聚集成更大的、具有(30-50)nm×(80-100)nm的次级晶粒。含有次级晶粒的溶胶前驱液在水热晶化过程中，次级晶粒发生崩裂并生长成结晶度更高的大小约为10-30nm球形和大小约为20-60nm棒状纳米TiO2

X-ray diffraction and petrography analysis showed that the burial depth from 2500 meters to 3000 meters was favorable to diagenetic evolution of clay and carbonate minerals in source rock.

粘土矿物和碳酸盐矿物的转化对烃源岩力学性质产生了影响，导致随埋藏深度的增加岩石由相对塑性向相对脆性转变。

In consideration of the lens as a phase modulator,the integral diffraction equation of the FZP was solved digitally.

对波带板的菲涅耳衍射积分方程进行了数值求解，计算时考虑了透镜的位相调制作用。

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。