1、

The effects of solvent of Grignard reagent, pyridine hydrochloride and boron tribromide on yield of product were investigated.

考察了格氏试剂的溶剂、反应物盐酸吡啶和三溴化硼对脱甲氧基收率的影响。

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2、

In this abstract, the considerable influence of absorbing properties of iron-nickel superalloy on the quality of dumet wire will be particularly investigated.

本文着重研究了铁镍合金的吸气性能对杜美丝产品质量的重要影响。

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3、

The detection rate of valve dysfunction ( 58%) and left cardiac dilatation ( 48%) were higher than any other dysfunctions, and significantly higher than those investigated with X-ray and EKG.

其中以瓣膜病变及左心扩大检出率最高,分别为58%及48%,均明显高于X线及EKG检查。

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4、

Several key techniques including real time noise reduction, design of algorithms and sign digit, time allocation for all working parts, and clock synchronizing with a background of high noise are investigated.

研究了实时去噪的几项关键技术、算法和符号位的设计,各部分工作时间分配以及大背景噪声下时钟同步方法。

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5、

The heat transfer during the tire vulcanization was analyzed based on the heat transfer principle, the advantages of multi stage vulcanization were pointed out, and the effect of the heat diffusivity on the curing state of rubber and the effective factors on the heat diffusivity were investigated.

应用传热学原理研究分析了轮胎硫化过程中的热传递,指出了分段硫化的优点,并探讨了热扩散系数对橡胶硫化程度的影响以及影响热扩散系数的因素。

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6、

PAN fibers with different drawing ratio and different preoxidation degree were investigated by means of sound velocimeter and X-ray diffraction meter.

采用声速仪及X射线衍射仪对不同牵伸倍数和不同预氧化程度的PAN纤维进行取向度和预氧化程度的测试,并将其结果进行对比。

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7、

The effect of grain size, amplitude and frequency of the applied electric field on the dielectric susceptibility has been investigated.

本章主要研究了晶粒尺寸效应,外加交变电场幅值及频率对介电常数的影响。

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8、

By using the method of sample survey, this paper investigated the edit situation of popup news in the three main instant messengers QQ, POPO and UC, in order to find out their character.

本文通过抽样调查的方法,对当前国内三大网络即时通讯工具(腾讯QQ、网易POPO、新浪UC)弹出式新闻的编辑状况进行比较分析,以揭示其各自的特色。

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9、

The cure reactions of naphthyl-cycloaliphatic based epoxy resin ( ENL) were investigated under dynamic scan by differential scanning calorimetry experiment. To evaluate the properties of ENL, a conventional epoxy resin, DGEBA, was employed as a comparison.

用动态差示扫描量热(DSC)方法研究了一种分子骨架中含有萘基和脂环基结构的环氧树脂的固化反应行为,其固化反应活性较双酚A二缩水甘油醚(DGEBA)低。

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10、

This work mainly focuses on: ( 1) A series of phosphate catalysts have been prepared by precipitation method and sol-gel method respectively. The effects of preparing method, materials, conditions of drying and calcination on the properties of the catalysts have been investigated.

本研究主要包括以下内容:(1)分别以沉淀法和溶胶-凝胶法制备磷酸盐系列催化剂,考察了制备方法、原料、干燥、煅烧等条件对催化剂性能的影响。

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11、

The synthesis conditions were investigated such as the type of template, calcination temperature, molar ratio of water and titanium source, and molar ratio of template and titanium source.

通过改变模板剂的类型、焙烧温度、水和钛源的摩尔比、模板剂和钛源的摩尔比等因素,探索制备有序介孔二氧化钛的最佳条件。

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12、

The effects of the preparation conditions, such as calcination temperature, ratio of sol and zeolite and exchange times were investigated.

研究了煅烧温度,溶胶沸石配比,交换次数等制备条件对催化剂的影响。

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13、

SiC was prepared with siliceous colliery waste, quartzite, anthracite coal and weakly caking coal by Acheson process. The microstructure of siliceous colliery waste was investigated by SEM.

分别以硅质煤矸石、石英砂与弱粘煤、无烟煤作原料用Acheson工艺合成了SiC,并研究了硅质煤矸石的微观结构。

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14、

The effects of propanedioic acid, succinic acid, hexanedioic acid, sebacic acid and oxalic acid on floatation performance of feldspar and quartz in dodecyl amine system were investigated.

在十二胺捕收剂体系中,研究了丙二酸、丁二酸、己二酸、癸二酸和草酸对长石和石英浮选行为的影响。

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15、

The electrochemical behaviour and the current property of the entitled complex have been investigated in NH_3 · H_20-NH_4Cl buffer solution ( pH 9. 5) containing EDTA and diphenyl guanidine. The mechanism of related reactions has been discussed.

本文研究了铍(Ⅱ)-钍试剂Ⅱ在EDTA、二苯胍、氨-铵缓冲溶液(pH9.5)中的电极行为和电流性质,并对有关机理进行了探讨。

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16、

We investigated the difference of the pharmacokinetic properties after oral administration of conventional granules and Fenbid. ibuprofen;

本文中首先对家兔口服芬必得和布洛芬颗粒剂后,各对映体的药物动力学性质进行了研究,考察了剂型对布洛芬对映体立体选择性体内药物动力学的影响。

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17、

Cobalt disulfide was investigated as a promising anode material for lithium ion batteries.

报道了一种新型锂离子蓄电池阳极材料CoS2,利用X射线衍射(XRD)、电子扫描电镜(SEM)和BET等技术研究了其结构和形貌。

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18、

The thermophysical characteristics of the natural crypto crystalline graphite were investigated.

研究了天然无定形石墨砂热物理特性,试验结果表明,与硅砂相比,石墨砂有较好的激冷性,可提高合金组织的致密度,改善其力学性能.

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19、

The dissolution of megestrol acetate soft capsules was investigated, using 2% Sodium dodecyl sulfate in acetate buffer solution ( pH4.5) as the dissolution medium, at the rotational rate of 120r/ min. The dissolution curve was discussed.

建立了醋酸甲地孕酮软胶囊的溶出度测定方法。以2%十二烷基硫酸钠的乙酸盐缓冲液(pH4.5)900ml为溶出介质,转速120r/min,并考察了溶出曲线。

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20、

The effects of doping element potassium on the microstructure and properties of doped molybdenum wirer were investigated by electron microscope.

采用电子显微镜研究了掺杂元素钾对于掺杂钼丝显微组织和性能的影响。

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