充分利用了的

The attention is focus on presenting the sufficient conditions for the existence of the memoryless state feedback guaranteed cost controller by linear matrix inequality technology, and the design of the guaranteed cost control law such that the closed-loop system is asymptotically stable and has a specified upper bound of the closed-loop cost function value for all admissible uncertainties.

利用线性矩阵不等式技术，给出了保性能控制律存在的充分条件，所设计的无记忆状态反馈保性能控制律，可以使闭环系统渐近稳定，且闭环性能指标在允许的范围内不超过某个确定的上界。

In this paper,by using the comparison theorems and constructing suitable Lyapunov function, the sufficient conditions are obtained for the permanence and existence of globally asymptotically stable positive periodic solution of the system.

研究了具有反馈控制的n种群非自治周期竞争系统的持续性，利用微分不等式并构造适当的Lyapunov函数得到系统存在惟一、全局吸引的正周期解的充分条

This paper consists of three parts:We first consider the non-autonomous predator-prey system with both Beddirigton-DeAngelis functional response and dispersion. By using comparison theorem of differential equation, we study the permanance of the system. After that, by constructing suitable Lyapunov function, we obtain some sufficient condition which guarantee the existence of globally asymptotically stable almost periodic solution of the system.

本文研究三方面的内容：第一部分考虑具有扩散和Beddington—DeAngelis功能反应的捕食-食饵系统，利用微分方程比较原理得到该系统一致持续生存的条件；通过构造适当的Lyapunov函数得到了该系统存在全局渐近稳定概周期解的充分条件。

With the help of comparison theorem, sufficient conditions which guarantee permanence of the system are obtained. For the almost periodic case, by constructing a suitable Liapunov function, we obtained that the system has a unique globally asymptotically stable positive almost periodic solution. Finally, we study a multispecies predator-prey system with stage structure and Holling II type functional response.

第二部分考虑具有阶段结构的非自治扩散捕食系统，利用比较定理得到该系统持久生存的充分条件，其后在概周期情形下通过构造合适的Liapunov函数得到了保证该系统存在唯一一个全局渐近稳定的概周期解的条件。

The existence of solutions to a type of nonlinear ordinary differential equations four-point boundary value problems with p-Laplace operator was studied by means of the extension of Mawhin s continuation theorem with sufficient conditions obtained for the existence of solution.

利用Mawhin连续引理的推广形式，研究一类具 p-Laplace算子的非线性常微分方程四点边值问题解的存在性，得到了方程解存在的充分条件。

Fourthly, according to the theory of circular economy, the paper tried to provide an effective and feasible process flow of EOL vehicles. After taking into account of the situation in China, the paper also tried to establish an EOL vehicles recycling system which is represented by automaker integrative mode. The system is not only congruous with the Extended Producer Responsibility Policy, but also beneficial to integrate numerous enterprises and individuals among the auto industry chain.

第四，结合我国汽车产业供应链模式，遵照循环经济理论，尝试提供一套有效可行的报废汽车处理流程，并在充分考虑我国现阶段国情的基础上，构建了以汽车制造商一体化模式为代表的报废汽车回收体系，使之既符合国家对汽车制造商提出的"生产者责任制"政策，又能利用汽车制造商在产业供应链中的领导地位，将众多企业或个体有效集结起来。

In chapter 1 ,on one hand ,we give some sufficient conditions for a finite group to be supersolvable and nilipotent by using the properties of π-supplemented subgroups;For example: Theorem 3 Let G be a group, 2 ∈π, if every subgroup of G of prime order is contained in SE, every cyclic subgroup of G of order 4 is π-supplemented in G, then G will be supersolvable.

在第一章中，一方面我们利用π-可补子群的性质给出了有限群为超可解群及幂零群的若干充分条件；例如：定理3设G是群，2∈π，如果G的每个素数阶子群包含在SE中，G的每个4阶循环子群在G中π-可补，则G为超可解群。

"Live evidence" actually means "the scene 3", compared with the first two series, the play fully reflected in the content, the new concept of strong science and technology, comprehensive display of the side cases detected using high-tech means to combat crime scene; the plot design, the same concentration in both cases show two points, 515tv.

现场铁证》其实就是《案发现场3》，与该系列前两部相比，该剧在内容上充分体现科技强的新理念，全方位展现了方利用高科技手段侦破案件、打击犯罪的场景；在剧情设计上，将同一案例分两段在两集中展示，515tv。

"Live evidence" actually means "the scene 3", compared with the first two series, the play fully reflected in the content, the new concept of strong science and technology, comprehensive display of the recipient with the high-tech detection of cases, the fight against crime scene; the plot design, the same concentration in both cases show two points, 515tv.

现场铁证》其实就是《案发现场3》，与该系列前两部相比，该剧在内容上充分体现科技强的新理念，全方位展现了方利用高科技手段侦破案件、打击犯罪的场景；在剧情设计上，将同一案例分两段在两集中展示，515tv。

According to existing results, it is generally thought that during the Neoproterozoic Earth had experienced several most severe global glaciations in Earth's history.

根据现有的研究结果，地球在新元古代时期确实经历了数次地球历史上最为严重的全球性冰川期，但地球是否被完全冰封还需要更充分的古地质和古生物方面的证据来证明；利用气候模式对各种可能的外部强迫的模拟试验表明&冰雪地球&是很难形成的，并且，如果地球进入完全被冰封的状态，它将是难以被融化的；关于新元古代时期剧烈的气候变化对寒武纪生命大爆发所起的作用存在2种观点，一种认为气候变化导致了原始生命的基因突变并诱发了寒武纪生命爆发，另一种认为这种影响主要是生态方面的。

John Robbins lives with his family in Santa Cruz, California.

约翰罗宾和家人居住在加利福尼亚州的圣克鲁斯县。

The international background is mainly the economic ties among different nations tented to be widen and deepen at the peace and development times.

国际背景主要是和平与发展时代条件下的世界各国经济贸易联系的日益加深。