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Through study of cyclic active database rule sets and analysis of triggering graph and activation graph, we present the concept of united formula and the algorithm to determine termination of a rule set corresponding to a cyclic triggering graph. We also present the time complexity analysis of the algorithm.

我们针对有时的规则集的终止性进行了研究,通过对触发图、活化图的分析,提出了联合公式的概念,在此基础上给出了判定有触发图对应的主动规则集的终止性算法,并给出了时间复杂度分析。

To investigate the prevention of anti-apoptosis drugs (sodium ferulate, SF; schisandrin B, Sch B; flos chrysanthemi, FC; semem planagines, SP) on lens epithelial cell damaged by oxidative stress, and to study the changes of intracellular-free calcium, cyclic adenosine monophosphate and cyclic guanine monophosphate, in order to disclose the mechanism of signal transduction in cellular and molecular level.

目的 本研究旨在探讨细胞凋亡抑制剂阿魏酸钠、五味子乙素、菊花、车前子对氧化损伤的晶状体上皮细胞内Ca2+、磷酸腺苷、磷酸鸟苷的影响,从细胞信号转导角度揭示天然药物防治白内障的细胞和分子学机制。

As to cyclic codes over finite chain rings, we study their stucture and develop the Fourier Transform method to finite chain rings. The permutation groups of cyclic codes and their extended codes are investigated using their Mattson-Solomn polynomials.

对于有限链上的循码,我们研究了它们的结构,并把傅立叶变换的方法推广到有限链,用循码的Mattson-Solomn多项式对循码及其扩展码的置换群进行了研究。

First, two preprocess algorithms are designed to decompose a communication request set into some continuous cyclic sequences. Then the permutation group is used to represent the ring network with fixed converters and an algorithm is proposed to classify the wavelength channels into some groups.Based on these on these ideas,a wavelength assignment algorithm is presented.For an optical ring with any fixed conversion mode,the algorithm can giv a good assignment scheme.

首先,提出了两个对网上的请求集合预处理的算法,这两个算法可以将请求集合分解成一些连续的循序列;然后,采用置换群来描述具有固定波长转换器的光网,基于这种数学表示,提出了对网上的波长信道进行分解的算法;基于这些算法,进一步提出了一个波长分配算法,该算法对于形光网上的任意固定转换模式都能给出一个较好的波长分配方案。

The further study is still needed for representation of the cyclic molecular structures by SOTI.

本文已实现了对一些非分子的双向SOTI指数,复杂的系分子的双向SOTI指数仍然在研究之中。

Chapter 2 is mainly about synthesis of osmacycles based on [5+1] cyclization reaction.

第二章主要研究基于[5+1]关法的锇杂化合物合成。

Chapter 5 describes the synthesis of iridacycles based on [4+1] cyclization reaction.

第五章主要研究基于[4+1]关法的铱杂化合物合成。

Any of several cycloalkane hydrocarbons having the general formula CnH2n and found in various petroleums.

烷烃分子式为cnh2n的一系列饱和烷烃,存在于各种石油中

It provides the theoretical basis and the feasible process parameters for the industrialization of expoxy cyclohexane compounds.

为绿色催化合成己烷系化合物的工业化合成新工艺开发提供了理论依据和可行的工艺参数组合。

Was obtained in Trial 8 where the total cyclohexane conversion was 78% with 74% of the starting cyclohexane converted to oxygenate.

获得了审判8的总己烷转化率78 %与74 %的转换开始己烷氧化。

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Do you know, i need you to come back

你知道吗,我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。

Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

第三章汉藏语&的&字结构的类型划分。