结晶

XRD, SEM, TEM and AFM were used to characterize the crystallization behavior, orientation and surface morphology of the ZnO thin films.

由于在ZnO薄膜中掺入Li和Mg能有效提高薄膜结晶过程中的扩散，因此，掺Li和Mg氧化锌薄膜有更好的结晶度和表面形貌平整度。

In addition, the preparation and package and store for standard reference materials of antioxidant BHT are studied.

本论文主要叙述了对工业品防老剂BHT的重结晶提纯和区域熔融提纯(自行设计和制造了区域熔融仪，申请了发明专利)来制定防老剂BHT标准物质的研究：通过实验确定了乙醇重结晶提纯工艺；利用自行设计区域熔融装置，拟定操作规程和技术条件；确定提纯样品的高效液相色谱法和差示扫描量热法的纯度检测条件和实验方法；用高效液相色谱检验BHT标准物质的均匀性、稳定性；分别用高效液相色谱法和差示扫描量热法测定这种标准物质的不确定度评定及两种不同原理检测的定值分析；最后确定标准物质BHT的纯度和合成标准不确定度：标准物质的制备、包装及贮存。

It is shown that solubility of ethylene can be described by Henry＇s law and that of n-hexane and iso- pentane is non-linear.

聚乙烯结晶度20％～72％范围内，有机小分子在聚乙烯中的溶解度随结晶度的增加而减小。

The construction characteristics of calcium phosphite were measured with Y-4Q system X-ray diffraction apparatus and the thermal analysis method in this paper.

本文采用热分析和x衍射方法研究了亚磷酸氢钙的结构特性，获得了亚磷酸氢钙结晶水合物的热分解特性和有关热分析数据；获得了亚磷酸氢钙结晶水合物的x衍射图谱和有关衍射数据；分析了它们与结构及其变化的关系。

Aiming at the key issue of PVA fiber industry, this paper focuses on the realization of PVA melt spinning through intermolecular complexation and plasticization, and studies its mechanism. According to the supermolecular

研究了改性体系的氢键复合结构，改性体系中水的蒸发行为，改性剂对PVA热性能、结晶结构及非等温结晶性能的影响，PVA熔纺初生纤维的结构与性能及纤维拉伸过程中的结构形成，为在加工过程中控

The experimental data were correlated with mathematics models such as the ideal solution, Apelblat and polynomial empirical equation respectively.

过饱和度是结晶的推动力，控制过饱和度是控制结晶的主要手段［5］。

Not allowing the metal salts to return to a powder by cooling down between on/off cycles which can take 5 minutes minimum.

在开关的循环中，时间上不允许金属盐冷却后重新结晶成粉末（最少需要5分钟，金属盐才能重新结晶

The supersaturation level of precipitant influence greatly on the size and shape of AUC crystal.

溶液中沉淀结晶物质的过饱和度对AUC沉淀结晶的粒度、形貌有重要影响。

In this study, the glasses were prepared from reagent-gade chemicals Mg2, CaCO3, BaCO3 ,Al2O3, and 9wt% ZrO2 which acts as nucleating agent, by quenching method. The glass-ceramics, which are transmitting in the middle IR region and have improved mechanical strength, were made from the parent glass via suitable crystallization heat-treatment.

本研究是以Mg2、CaCO3、 BaCO3 及Al2O3，为主要的成分，再添加9wt ﹪ZrO2作为成核剂，用高温淬冷的方式制备出玻璃，再施以结晶热处理，希望制出结晶化且具有透中红外光的玻璃陶瓷，以提高机械强度。

Optimization of resolution conditions and affecting factors on resolution such as solvent, the molecular ratio of racemate to resolving agent, method of reaction, concentration of racemate, crystallization temperature and crystallization time were studied.

对影响拆分的因素溶剂和底物浓度通过均匀实验进行了优化，同时对其他影响因素如底物与拆分剂投料比、反应物溶解方式、结晶时间和结晶温度等进行了考察。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。