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A yield of 88% for TMH can be obtained by using the optimized synthetic conditions as follows: molar ratio of formaldehyde to octylaldehyde 4.5: 1.0, molar ratio of sodium hydroxide to octylaldehyde 1.4: 1.0, aldol condensation temperature 35℃ and time 240min Cannizzaro reaction temperature 55℃ and time 180min.

结果表明，优化的合成三羟甲基庚烷的反应条件是，n／n=4.5，n/n=1.4，羟醛缩合反应温度和时间分别为35℃和240min，康尼扎罗反应温度和时间分别为55℃和180min，摩尔产率可达88%。

The factors which mostly affect the quality and output of the product including molar proportion of reagents, reaction temperature, alkaline concentration and reaction time are analyzed. After orthogonal experiment, it is concluded that the optimized reaction condition is that acetone and furfural are charged with equal molar quantities at 40 with sodium hydroxide (0.10 mol/L) and the operation time 5 h.

通过对影响亚糠基丙酮质量和收率的主要因素原料配比、反应温度、碱浓度、反应时间等单因素实验，探索出合成亚糠基丙酮的优化反应条件为：原料配比n：n=1.0：1.0、反应温度40℃、氢氧化钠溶液浓度为0.01 mol/L、反应时间5h。

It was concluded that no aging time was the most beneficial to form colloid, when molar ratio of phosphoric acid to antimony was in the range from 0.8 to 1.0 and 1.0 to 1.3, the particle sizes of sol with the concentration of 10 % and 15 % antimony pentoxide by weight are both smaller, and with the molar ratio of 1.0, the average particle sizes are (36±5.6)nm nm and (164±32)nm respectively.

结果表明：氧化锑混合物不进行陈化对胶体五氧化二锑的形成最有利；磷酸与锑的摩尔比分别为0.8～1.0和1.0～1.3时，10%和15%的胶体五氧化二锑胶粒粒径较小，当摩尔比为1.0时，粒径分别为(36±5.6)nm和(164±32)nm。

In addition, the constant-volume combustion heat of MPC was determined as -25432.72 J·g~(-1) by a oxygen bomb calorimeter at 298.15 K, and its standard molar combustion enthalpy and standard molar enthalpy of formation were calculated as -3868.92 kJ·mol~(-1) and -422.33 kJ·mol~(-1), respectively.

同时本文测定了MPC的恒容燃烧热为-25432.72 J·g~(-1)，并计算出MPC的标准摩尔燃烧焓为-3868.92 kJ·mol~(-1)及标准摩尔生成焓为-422.33 kJ·mol~(-1)。

Weak electrolyte ionization degrees can be approximately obtained by the conductivity ratio, namely:α= ma0, mam, and 0, m respectively, the molar electrolyte conductivity and limiting molar conductance (ie, fully ionized after a solution of the conductivity).

弱电解质的电离度可近似地由电导比求得，即：α＝ma0，mam和0，m分别为电解质的摩尔电导和极限摩尔电导（即完全 a电离后溶液的电导）。

Weak electrolyte ; molar conductivity ; limit molar conductivity ; the Law of the Independence Migration of Ions

弱电解质；摩尔电导率；无限稀释摩尔电导率；离子独立运动定律

The ion transfer number is introduced in the formula describing the relationship between ionic limiting molar conductivity and ionic concentration based on mode coupling theory. A series of calculated for the ionic limiting molar conductivity are present.

在模式耦合理论推导的低浓度时离子摩尔电导率与离子浓度的关系式中，引入离子迁移数，提出了求离子极限摩尔电导率的新方法。

The changes of the conductivity, molar conductivity, activity coefficient and relative partial molar free energy of LiCl with concentration and temperature of the solution were discussed.

应用电导率仪在288~308K温度范围内测定了LiCl在纯有机溶剂中的电导率；利用公式计算了LiCl的摩尔电导率；按Kohlrausch经验公式，使用Origin软件进行线性拟合，作图外推求得LiCl在异丙醇中的无限稀释摩尔电导率λ0值；并讨论了LiCl在异丙醉中的电导率、摩尔电导率、活度系数和相对偏摩尔自由能随溶液浓度和温度的变化关系及其温度对LiCl溶液无限稀释摩尔电导率的影响。

Determined electric conductivity of Rare Earths salt ErCl 3、DyCl 3、NdCl 3 and YCl 3 in H 2O at 293K, using formula calculated the molar conductivity of Rare Earths salt in H 2O , and discussed the effect of the electric conductivity and the molar conductivity of Rare Earths salt in H 2O with concentration at 293

天然Ⅰa型金刚石在垂直于( 10 0 )，( 110 )和( 111)三个方向上定向显微红外光谱的定量比较分析表明：水、片晶和C—C键在以上三个方向上所测得的浓度是不相同的。

Methods Firstly, the conductivity of DyCl3 in isopropanol was determined at 303.15 K to 313.15 K to calculate the molar conductivity of DyCl3 secondly, Kohlrausch formula and Origin software were used to make the diagram of linear fitting, finally the diagram was pushed outside and the molar conductivity at infinite dilution λ0/(Scm^2mol^(-1) of DyCl3 in isopropanol was calculated, and the influence of the temperature on λ0/Scm^2mol^(-1 of DyCl3 electrolyte solution was investigated.

根据实验在303.15~313.15K温度范围内测定DyCl3在异丙醇溶剂中的电导率，求得DyCl3的摩尔电导率值，应用Kohl-rausch经验规则，使用Origin软件进行线性拟合，作图外推求得DyCl3在异丙醇中的无限稀释摩尔电导率λ0/S平方公分mol^(-1值，并讨论DyCl3在异丙醇中的λ0/S平方公分mol^

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。