1、

The on-line NMR monitoring, control experiments and the X-ray structure of intermediate disclosed that the reaction may undergo Cu ( I)/ Cu ( II) catalytic cyclization process.

通过核磁监测、控制实验以及中间体单晶结构等证实了反应可能经历了Cu(Ⅰ)/Cu(Ⅱ)的催化过程。

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2、

Accurate x ray structure analysis

精密x射线结构分析

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3、

The X-ray diffraction analysis indicate that the films are of tetragonal rutile structure without any Mn compounds, except for5% Mn doping, in which the slight orthorhombic phase appears due to the presence of defects and strain.

X射线衍射分析表明该薄膜是四方金红石结构,且未发现任何Mn的化合物。其中只有5%的Mn掺杂样品结构有微小的斜方晶相出现。

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4、

P wave velocity structure of the upper and middle crust in the Wuzhong Lingwu region is studied using the methods of ray tracing and the joint inversion of hypocentral parameters and velocity structure.

应用射线追踪方法进行震源参数和速度结构联合反演,对宁夏吴忠、灵武地区地壳中上部P波速度结构进行了研究。

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5、

With the help of infrared spectrum instrument and X-ray diffraction instrument, the treated jadeite sample are analyzed, and combined with the analysis on sample appearance, relationship among the temperature factor and the jadeite diaphaneity, color and structure variety in the heat treatment process is discussed.

利用红外与X衍射分析手段对热处理处理后的翡翠样品进行了分析,结合样品外观分析,探讨了热处理过程中温度因素与翡翠水头和颜色以及结构变化的一些联系。

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6、
7、

Its crystal structure, specific surface area, pore size distribution, oxygen storage capacity ( OSC) and redox behavior were investigated by X-ray diffraction, BET, oxygen pulse adsorption and H_ ( 2)-temperature programmed reduction ( H_ ( 2)-TPR).

采用X射线衍射、BET、氧脉冲吸附和H2程序升温还原(H2-TPR)等技术对材料的晶体结构、比表面积、孔结构、储氧性能和还原性能进行了研究。

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8、

FTIR, X-ray, DSC and SEM were used to characterize the chemical structure and thermoplasticity of cyanoethylated Wood.

利用,X-ray,DSC,SEM等对氰乙基化木的微观结构和热塑性进行了研究和表征。

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9、

The effects of preparation methods and calcination temperature on perovskite structure were characterized by X-ray diffraction ( XRD) and temperature programmed reduction ( TPR).

用X-射线衍射(XRD)和程序升温还原(TPR)技术考察了制备方法和灼烧温度对钙钛矿型结构形成的影响。

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10、

The composition and application of 101 ambient temperature steel blackening agent were introduced. Performances of blackening film were measured and its composition, structure and appearance were analyzed by X-ray, SEM and electron spectrograph.

介绍了101型钢铁常温发黑剂的组成、作用和使用方法,综合测试了发黑膜的性能,借助于X-射线、扫描电镜、能谱仪,分析了发黑膜的组成、结构和形貌。

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11、

Calculation shows that such a temporal structure can be reconstructed from the differential photoelectron energy spectrum excited by XUV or x ray, modulated by a laser field and measured at 90 ° or 0 ° with respect to the linear laser polarization.

可以由XUV激发惰性气体产生、并在与超短脉冲激光的线性极化方向成0°或90°的方向上测量得到的光电子能量微分谱重建这种时间结构。

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12、

Superlattice structure's X-ray diffraction analyzing and structure parameters's calculating

超晶格结构X射线衍射分析及其结构参数的计算

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13、

The structure of 13 was confirmed by X-ray crystallographic analysis.

通过X单晶衍射确证了13的结构。

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14、

Study on property and structure modifications of silk fiber by γ-rays irradiation

γ射线辐照改性蚕丝的性能与结构研究

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16、

The effects of various metal oxides on the crystal structure and chemical characteristics of an iron chromium catalyst are researched by the temperature programmed reduction ( TPR) technique, X ray analysis and catalytic activity test.

运用程序升温还原(TPR)、X射线衍射(XRD)及活性评价技术研究了金属氧化物对低铬铁系催化剂结构和性能的影响。

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17、

The structure of the graft copolymers of methyl methacrylate onto soft wood sawdust initiated by xanthate-H2O2 was investigated by X-ray diffraction and transmission electron microscopy. The thermoplasticity of the grafted products was also examined.

本文采用X-射线衍射和透射电镜研究了黄原酸酯-H2O2引发体系、底物聚集态结构的变化,考查了接枝产物的热塑性。

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18、

Therefore, there is a need for imaging the interior of the tire cord structure by means of X-ray technology and by analyzing the tire image, to achieve the detection of defects, and improve the quality of the tire.

因此,需要借助于X光技术对轮胎内部帘线结构进行成像,通过分析轮胎图像,来实现缺陷的检测,提高轮胎质量。

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19、

In addition, picking zero-offset travel time from two way travel time stacked reflection profile and joint ray tracing inversion with wide-angle reflection and refraction data will obtain more reliable velocity structure.

另外,拾取反射叠加时间剖面零偏移距反射走时和宽角反射并与折射走时进行联合射线追踪反演,可获得更可靠的速度结构。

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20、

The crystal structure of a novel tetranuclear Pr complex [ Pr4 ( O2) 2 Cl8 ( THF) 8 ( H2O) 2] · 2THF was determined by the single crystal X-ray diffraction method.

本文用X&射线衍射法测定了[Pr4(O2)2Cl(THF)(H2O)2]·2THF的晶体和分子结构。

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