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Effects of reaction temperature, initiator dosage , residence time and dilution ratio of steam to n -heptane on initiated cracking performance of n - heptane were studied.

以硝基乙烷为引发剂，考察了反应温度、引发剂用量、停留时间和水蒸气稀释比（水蒸气与正庚烷的质量比）对正庚烷引发裂解性能的影响。

The preparation of heat stabilizer with 2-Ethyl Hexyl Thioglyclloate and di-n-octyltin dichloride or di-n-octyltin oxide.

摘 要：以自制的二正辛基氧化锡和巯基乙酸异辛酯为原料，采用四种合成双巯基乙酸异辛酯二正辛基锡的方法。

In Chapter 2, we study Isosceles orthogonality and Pythagorean orthogonality, which are natural extensions of orthogonality in Hilbert space.

首先给出Isosceles正交性的性质，揭示了这种正交性与等距算子的密切联系。

Report from our correspondent the electronic business affairs of traditional retail trade is breaking through last kilometer, the reporter learns, the traditional trade group of Guangzhou is in business affairs of active engraft electron, include business of Beijing grade family status circle, always terminal market of commerce of blessing road car, with white horse store, besides large trade group, include beautiful, Yi Chulian is flower, wide 100, friendship, with the mobile phone chain north is fought, communication of dragon another name for Guangdong Province platform of in full blast deploy electron business affairs.

本报讯 传统零售业的电子商务正在突破最后一公里，记者获悉，广州的传统商圈正在积极嫁接电子商务，包括北京路门户商圈、永福路汽车贸易批发市场，和白马商城，除了大型商圈，包括正佳、易初莲花、广百、友谊，和手机连锁北斗、龙粤通信等正紧锣密鼓地部署电子商务平台。

The existence of positive solutions of some fourth-order singular semi-positone boundary value problems are obtained on a special cone by using the fixed point index theorem.

本文在一个特殊锥上利用不动点指数定理，得到了一类四阶奇异半正边值问题正解的存在性，并给出了一个例子作为对所获结果的应用，推广和改进了一些已知结果。

In chapter 4, we first discussed the existence of multiple positive solutions of the second order nonsingular Dirichlet boundary value problem for impulsive differential equations by using the fixed point index theorem in cones . Next, we presented some new existence results for singular boundary value problems for second order impulsive differential equations by using fixed point theorem in cones and Leray-Schauder nonlinear alternative theorem.

第四章我们首先利用锥不动点定理讨论了非奇异二阶脉冲微分方程狄利克莱边值问题多个正解的存在性；其次我们用锥不动点定理和Leray-Schauder型非线性抉择定理，讨论了奇异二阶脉冲微分方程狄利克莱边值问题一个及多个正解的存在性。

Jurassic Tectonic Revolution in China and New Interpretation of the Yanshan Movement;2. The Indo-Chinese movement and Yanshan movement were two important tectonic movements in the Mesozoic era.

中生代印支运动和燕山运动是对济阳坳陷有重大改造的2次构造运动，印支期主要发育NW向逆推断层，燕山早期则为逆断层向正断层的过渡阶段，燕山中、晚期NW向断层发生构造反转，由逆断层转换为正断层。

For this type, the determination for instigation and the assist for self-injury draw great attention in the theories of criminal law.

三、间接正犯认定的疑难问题本文对间接正犯认定的以下几个疑难问题进行了深入地探讨。

The objective of this paper is to evaluate various spatial interpolation methods, including ordinary Kriging, simple Kriging, lognormal Kriging, universal Kriging, disjunctive Kriging and inverse distance weighting interpolation for estimating soil surface Hg content with lognormal distribution, the linear and second-order polynomial trend, and t...

以分布类型为对数正态分布，同时具有一阶和二阶趋势效应的土壤重金属Hg为例，分别应用普通克立格法，简单克立格法，对数正态克立格法，泛克立格法，析取克立格法和距离反比权重法等 6种内插方法对其进行了估值，综合比较了各种内插方法的预测误差、统计特征值及插值结果分布图。

The forward problem is solved using a finite element technique in two dimensions that is a foundation of the inversion problem.

正演计算是电阻率反演成像的基础，本文从二维有限元基本理论出发，完成了高密度电法的二维有限元正演模拟程序，为后期多方法反演奠定了基础。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。