前驱

The results show that the zirconium sol has good spinnability when n: n= 1:3, reaction time is 6h and aging temperature is 15℃. The ZrO_2precursor fibers are made from hydrous zirconia chelated by acetylacetone. The sintercd fibers arecomposed of metastable tetragonal phase and sized about 15μm in diameter. Moreover, there aremany pores inside the fibers, but no cracks.4. ZrO_2/PVP hybrid fibers were prepared by blending the spinnable zirconium sol and 10 wt%PVP solution.

结果表明，当n(ZrOCl_2·8H_2O)：n(H_2O_2)=1：3，反应时间6h，陈化温度15℃时可得纺丝性能良好的锆溶胶，ZrO_2前驱体连续纤维的组成主要为经乙酰丙酮配位的ZrO_2水合物，热处理后的ZrO_2纤维的相结构为亚稳四方相，纤维的直径为15μm左右，纤维中存在大量的纳米级气孔，但无明显裂纹。4。

Carbon nanocoils were in situ synthesized by the flame combustion of ethanol using stannic chloride as catalyst precursor. The morphology and structure of CNCs were characterized by means of scanning electron microscope, transmission electron microscope, X-ray diffraction and Raman spectrum.

采用乙醇火焰燃烧，借助于基板材料上涂敷锡盐作为催化剂前驱体，制备了螺旋结构碳纳米纤维；借助于扫描电子显微镜、透射电子显微镜、XRD和拉曼光谱等分析了螺旋碳纤维的形貌和结构。

These results show that overexpression of Nolz-1 can reduce cell proliferation, promote neural differentiation and induce programmed cell death in striatal neural progenitors.

这些结果显示过度表现Nolz-1在纹状体神经前驱母细胞中有抑制细胞增生、促进神经元分化及造成细胞程序式死亡的现象。

Using ethylene glycol as solvent, all the three source materials were takingpart in polyreaction of gel. The solubility of bismuth subnitrate in ethyleneglycol was accelerated greatly due to the production of nitrate ester during thepolymerization of precursors.

SBT粉体的溶胶—凝胶制备过程表明：在以乙二醇为溶剂时，三种原材料都参与了聚合反应，前驱物聚合反应过程中有硝酸酯产生，因而促进了硝酸氧铋在乙二醇溶液中的溶解性能。

CuS thin film composed of nano/micro tubes with diameters in the range of 150 to 200 nm and lengths up to several microns and CuO thin film composed of nano/micro crystals with sizes ranging from 150 to 250 nm have been successfully prepared through a gas-solid sulfurization and oxidation reaction using well-aligned CuCl nanorod films as precursor.

在本文中，以由氯化亚铜纳米棒组成的薄膜为前驱体，分别通过气-固相的硫化和氧化反应获得了由直径150到200纳米，长度达数微米的硫化铜管组成的薄膜和粒径为150到200纳米的氧化铜纳米/微米晶所组成的薄膜。

The major part of this thesis is about the syntheses and EPR studies of a series of radical pair precursors (55, 56 and 57) which contain 1-toluene sulphonyl benzimidazoles as the key components.

本篇论文主要的部分为一系列自由基对前驱物1-对甲苯磺醯基-苯咪唑及其衍生物55、56、57的合成与低温EPR光谱之研究。

Presumably, diminishing activity of the telencephalic serotonergic system ushers in physical fighting behaviors.

此外，也发现当血清张力素前驱物质减少会导致前述抑制作用降低而进入以嘴互咬的打斗阶段。

MgO nanowires were synthesized at a lower temperature (600℃) by pulsed liquid injection MOCVD with β–diketonate Mg2 magnesium bis (2,2,6,6–tetramethyl- 3,5-heptanedionate, with formula Mg(C11H19O2)2 as precursor.

使用脉冲液滴注入式MOCVD，将Mg2（即：双（2，2，6，6，-四甲基-3，5-庚二酮酸）镁，其分子式是Mg(C11H19O2)2 ）作为反应前驱体，在较低温度下（600℃）合成MgO纳米线。

In this paper, strontium lead titanate was prepared from strontium lead titanyl oxalate tetrohydrate by chemical coprecipitation .

采用化学共沉淀法经前驱体草酸氧钛锶铅制得钛酸锶铅粉末。

Using titanyl sulfate as the TiO_2 source,the experiments for synthesizing TiO_2 nanoparticles were carried out by detonating the mixed explosives composed of the TiO_2 precursor,ammonium nitrate(NH_4NO_3)and cyclortrimethylenetrinitramine,the structures and properties of the as-prepared TiO_2 nanoparticles were also characterized, meanwhile in combination with detonation theory and experimental measurement,detonation parameters,such as detonation heat,detonation temperature were calculated,and detonation velocity was also measured.

以硫酸氧钛为钛源，引爆由氧化钛前驱体、硝酸铵和黑索金组成的混合炸药，进行爆轰合成氧化钛纳米粉的实验研究，对纳米氧化钛的结构和性质进行表征；结合爆轰理论计算和实验测量得到爆热、爆温和爆速等爆轰参数。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。