晶体学

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Quantitative textural analysis of igneous rocks has been improving the traditional qualitative and semi-quantitative petrographic methods to a new level that can be compared to geochemical analysis, which including crystal size distribution, spatial distribution pattern, crystal alignment factor and dihedral angle etc.

定量化火成岩结构分析将传统的定性或半定量化的岩相学研究，提高到了与岩石地球化学分析相比拟的定量化程度，实现了诸如晶体粒度分布、晶体空间分布、晶体定向程度分析和二面角测量等方面的定量化研究。

The result showed that the Lens Image Analysis System could detect the level of lens opacification in vivo objectively and quantitatively.

通过上述实验，结果显示：晶体图像分析系统能够对活体晶体混浊程度进行实时定量检测和分析，是活体晶体混浊程度客观评价的可靠手段，对白内障的早期诊断、流行病学调查和抗白内障药物疗效评价具有重要意义。

In the reasonable drug molecular design,analyzing the conformations of the substrate without three-dimension structure and confirming its active conformation are very important to illustrate the spatial shape and active site of target enzyme. The active conformation of protoporphyrinogen IX substrate of protoporphyrinogen oxidase has been established using the Distance Comparisons DISCO method. In this paper, four different conformational molecules of Protogen IX and crystal molecule of diphenylethersAF are analyzed by comparing their geometry parameters. The results show the lower energy active conformation from the DISCO model is more reasonable.

在合理药物设计方法中，当靶标酶的三维结构未知时，对其底物进行构象分析，特别是确定其活性构象，对阐明靶标酶活性中心的空间形状和作用位点具有十分重要的意义我们曾利用距离比较法确定了原卟啉原氧化酶的底物—原卟啉原IX的活性构象，本文从构象分析的角度对4种不同构象的原卟啉原IX分子与二苯醚类分子的晶体学构象进行了几何参数的比较和分析，结果进一步证实了距离比较法所确定的活性构象更为可靠

These problems were first discovered by Ton Spek during testing of the checking programs for the journal.

这些问题最初是由汤-斯派克所发现的，他对《晶体学学报》杂志E卷和C卷的过期刊物进行了例行性检测。

More accurate crystallographic parameters and improved mathematical model were used in simulating the formations of 3D plate-shaped or 2D lenticular-shaped Ni4Ti3 variants.

与二维模型相比，本研究采用了准确的晶体学参数及改进的数学模型，获得了更为直观及合理的三维盘状变体及二维透镜状变体； Ni4Ti3沉淀相的长度、宽度和面积分数随时间的变化分别遵循指数、线性和对数关系；且其长度与宽度的比值并非恒定值，在生长初期该比值有较大的增速而随后逐渐减慢，能很好地解释沉淀相盘状及透镜状形貌特征形成的原因并与相关实验结果吻合。

Shihu gold deposit in Hebei Province, belonging to pyrite sulfide type,is characterized by multistage mineralization,but the main stage of mineralization is almost coincident with the mass separation of sulfideThe sulfur in sulfide and mineralizing hydrothermal solution is derived from anatectic granitic magma.

河北省石湖金矿属于黄铁矿硫化物型金矿，具有多期次成矿的特点。但金的主要成矿阶段与硫化物的大量析出阶段在时间上基本一致。硫化物及成矿热液中的硫来自深熔花岗质岩浆。从微观结构和晶体学理论上对金的赋存机理进行了讨论。

The volume fractions of the constituent phases of the scale on the hot-rolled plate/strip are quantitatively measured by using Rietveld whole spectrum fitting technology.

利用Rietveld全谱线形拟合技术定量测定了热轧板表面氧化皮各组成相的含量，谱线拟合时准确、合理地选择晶体学参数和峰形模型是拟合成败的关键。

Details of these retractions appear elsewhere in this issue of the journal.

关于这些论文的撤销细节将发表于《晶体学学报》杂志之上。

In Cu single crystals, the orientations of recrystallized grains were also radom after tensile test at 20—400℃.

转动30°—50°的晶体学关系，但在-196℃拉伸后，再结晶的取向是混乱的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。