不同时性

The results showed that the decomposition of 4-nitroimidazole began with the split of the C—NO2 bond in the temperature range of 185—210℃. The strongly oxidative product NO2 destroyed the instable annulus of 4-nitroimidazole instantly, all the other C＝N, C＝C, C—H and N—H bonds of the five membered ring were broken simultaneously, and the detected gas products of 4-nitroimidazole decomposition were NO2, CO2 and CO.

结果表明，4-硝基咪唑的催化热分解起始于其分子中C-NO2化学键的断裂，温度范围是185~210℃。C-NO2键的强氧化性的裂解产物NO2瞬间作用于4-硝基咪唑分子中不稳定的五员环，使化学键C=N、C=C、C-H和N-H同时被打破。4-硝基咪唑的气体分解产物包括NO2、CO2和CO。

Using the concept of Boolean functions and combinatorics theory comprehensively, we investigate the construction on annihilators of Boolean functions and the algebraic immunity of symmetric Boolean functions in cryptography:Firstly, we introduce two methods of constructing the annihilators of Boolean functions, Construction I makes annihilators based on the minor term expression of Boolean function, meanwhile we get a way to judge whether a Boolean function has low degree annihilators by feature matrix. In Construction II, we use the subfunctions to construct annihilators, we also apply Construction II to LILI-128 and Toyocrypt, and the attacking complexity is reduced greatly. We study the algebraic immunitiy of (5,1,3,12) rotation symmetric staturated best functions and a type of constructed functions, then we prove that a new class of functions are invariants of algebraic attacks, and this property is generalized in the end.Secondly, we present a construction on symmetric annihilators of symmetric Boolean functions.

本文主要利用布尔函数的相关概念并结合组合论的相关知识，对密码学中布尔函数的零化子构造问题以及对称布尔函数代数免疫性进行了研究，主要包括以下两方面的内容：首先，给出两种布尔函数零化子的构造方法，构造Ⅰ利用布尔函数的小项表示构造零化子，得到求布尔函数f代数次数≤d的零化子的算法，同时得到通过布尔函数的特征矩阵判断零化子的存在性：构造Ⅱ利用布尔函数退化后的子函数构造零化子，将此构造方法应用于LILI-128，Toyocrypt等流密码体制中，使得攻击的复杂度大大降低；通过研究(5，1，3，12)旋转对称饱和最优函数的代数免疫和一类构造函数的代数免疫，证明了一类函数为代数攻击不变量，并对此性质作了进一步推广。

Exact numerical system modal is needed to control structure vibration.

结构振动控制模型结构振动控制需要精确的系统数学模型，同时控制的实时性要求系统的模型阶数不能过高。

However, want to accomplish " to maintain original network structure and simplify modificatory setting, strengthen usability " at the same time, not be an easy thing.

然而，要想做到"保持原有网络结构和简化变更设置，同时加强可用性"，又不是一件轻易的事。

We know that asymptotically linear operator equations have negative solutions and sign-changing solutions besides positive solutions, in this chapter, we obtain the existence of this three kind of solutions in Banach space, and we can know the concrete place of these solutions.

第三章的目的就在于借助于不动点指数理论利用一致正条件讨论非线性算子方程变号解的存在性，同时研究了变号解与一对正负解之间的关系，在一定条件下我们证明了：若算子方程x=Ax存在一个变号解，则它的正解和负解必定成对出现。

His long-term business model is to provide a nonexclusive, free license to anyone who wants to manufacture and distribute the Groasis Waterbox, while he plans to ask only for a small royalty per box.

他的长期的商业模式是非独占性的，任何人只要想生产和提供这种水箱都不需要任何证书，同时，他计划每个水箱只索取很少的使用费。

Reliable multicast is a useful network service but challenged by the Internet heterogeneity and the nonsupport of IP Multicast in wide-area Internet.

Internet上的可靠多播具有很大的应用前景，但是同时也面临着挑战，主要是因为Internet的异构性以及IP Multicast仍不能广域内得以实现。

The steam distillation method showed the best result which reduced the contents of the volatile cornpound to 38 percent of those in crude snake oil.This method reduced 60 to 100 percent of main odorous compounds,and retai...

结果表明水蒸汽蒸馏是效果最佳的脱腥方法，它可使蛇油挥发性成分的量降至脱腥前的38%，使腥味的主要成分减少60%~100%，同时较大程度地保留了多不饱和脂肪酸。

Considering China's status quo, this article advances to analyze the reason for the refusal of business method patent in China, forecast the development trend of the patentability of business method in China, and bring forward some suggestions of improving the quality of business method patents.

并联系我国现实情况，对我国目前不授予商业方法专利的原因予以剖析，对我国商业方法可专利性问题的发展趋势作出预测，同时对提高我国商业方法专利质量提出若干建议。

In the meantime, fishery has the special mechanism that is different from other agriculture, advantage and risk, this kind of characteristic makes piscatorial industrialization has necessity and pressing sex more, have the characteristic of this industry.

同时，渔业具有不同于其他农业的非凡机理、优势和风险，这种非凡性使渔业产业化更具有必要性和紧迫性，具有本产业的特点。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。