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Modeling and stability analysis problem of linear switched system are emphasized in this part and main results include:(1) Through investigation in the projection of 〓 on x, where x denotes continuous state vector, a series of sufficient conditions for stability, asymptotic stability and unstability of linear switched system's equilibrium in the sense of Lyapunov are achieved. And also, a sufficient and necessary condition for state bounded stability of linear switched system is received.(2) For a class of periodical linear switched system whose switching sets are a group of ordinal lines starting from the original point, it's proved that state bounded stability can be defined by the running characteristic in a single period (3) Based on linear switched system, the concept of linear switched system network is put forward. Linear switched system network is a complex network interconnected by many linear switched systems.

这部分着重研究线性切换系统的建模与稳定性分析问题，主要成果包括：（1）通过考察〓在x上的投影，得到线性切换系统的平衡点在Lyapunov意义下稳定、渐近稳定及不稳定的一系列充分条件，并得到了线性切换系统状态有界稳定的一个充要条件；（2）证明了对于一类切换集为从原点出发的一组射线的周期线性切换系统，其状态有界稳定可根据一个周期内的系统运行特性来判定；（3）在线性切换系统的基础上提出了线性切换系统网络的概念，线性切换系统网络是由多个线性切换系统交互作用而形成的复杂网络。

In view of these, the second part of this paper presents two sufficient conditions and two mixed type duals for the generalized fractional programming only under-convexity assumptions. These sufficient conditions apply to a broader class of mathematical programming problems.The results about weak duality, strong duality and strictly reverse duality arealso presented under more suitable conditions.

鉴于此，本文的第二部分，我们仅在函数—凸性假设下，给出了广义分式规划的二个最优性充分条件，这些充分条件较文献中的相关的条件有更广泛的适用性；同时还给出了混合型对偶，并且在适当的条件下，给出了相应的弱对偶定理、强对偶定理，以及严格逆对偶定理。

Feed aprons and stock guide plates with different angles and spacing are being equipped inside the cylinder, the structure can ensure that the material being dried runes along the direction of screwing under the impact of gravitation and keeps for a sufficient maintaining times and dispersity in the cylinder to make the material has sufficient heat exchange with the heat airflow from air heating furnace inside of the cylinder.

三筒烘干机是引进欧洲先进技术，由三个不同直径的同心圆筒彼此相嵌组合而成的。筒内装有不同角度和间距的扬料板和导料板，这种结构能够保证被烘干物料在重力作用下沿着螺旋的运动方向运动，在筒内保持足够的停留时间和充分的分散度，使被烘干物料在筒内与来自热风炉内的热气流进行充分的热交换。

Via basic and descriptor adverse transformation of matrix, an equivalent standard linear system is derived. Sufficient and necessary conditions are established for observers with disturbance decoupling and LTR in systems. Analysis showed that the necessary and sufficient condition for observers with LTR is disturbance decoupling to any undnown inputs. So it is con verted to the problem that observers are designed with disturbance decoupling.

通过矩阵的初等变换和广义逆变换，将非方广义系统等价地转化为正常状态空间的广义线性系统，并运用有关定理给出观测器具有干扰解耦和环路复现特性的充要条件，经分析可知，系统具有环路复现特性的充要条件是系统对于任何未知输入干扰解耦，则具有环路复现特性的干扰解耦观测器的设计问题转化为系统关于任何扰动都是解耦的。

As Kenyans we have a sufficient pool of nephrologists, a sufficient pool of urologists, and all related scientists who will be involved with this area.

随着肯尼亚人我们有足够的肾科医师池，池中有足够的泌尿科医师，和所有谁将会与这一领域相关的科学家参与。

Hi Jill,a nice view of Grace of GOD.We can have a mind of possitive thinking if only we stay focused on the teachings of JESUS CHRIST.In HIS Infinite mercy HE has opened up the floodgates of Divine grace for total healing of ones whole being in whatever broken condition ,whether the mind,body or soul.The Saints were documented and known for having sufficient grace to perform miraculous cures over the centuries,even today many physicians and medical staff are bewildered by such healings encountered beyond medical technology.In all that is said,GODS Grace is good and sufficient for us all,Blessed be GOD forever!

喜建筑业，一个漂亮的看法有恩典god.we只要我们思想着的心灵之中对他无限慈悲教诲耶稣christ.in他打开了方便之门神州风采总愈合的整体状况正在发生什么，是否介意，身体还是被记载和闻名soul.the圣人有足够恩典演出灵丹妙药千百年来，直到今天许多医师和医护人员这种莫名其妙愈合以后遇到一切都是医疗技术水平，足以让神明恩典是好的，我们大家，上帝会永远祝福！

Motivated by the i dea o f t he v ariable-structure c ontrol, t he c onception o f a pproaching region and leaving region of the switching boundary is developed. The sufficient conditions of whether sliding mode occurs or not on the switching boundary are obtained. Under the assumption of the switching delay time being positive, the sufficient conditions of quasi-sliding-mode occurring on the switching boundary are given.

受变结构控制思想的启发，提出切换线的趋近域和远离域的概念，进而得出系统在切换线上是否会发生滑动模态的充分条件。

In this work, we demonstrate that SPIONs can be loaded into RBCs in a concentration sufficient to obtain strong contrast enhancement in MRI.

我们通过本研究发现，SPIONs能在足够的浓度条件下被红细胞包裹，并在MRI中获得了强的造影对比度。

In the fifth section, we obtain some sufficient conditions under which a class of a planar quintic system has at most two limit cycles by transforming it into Abel equation.

第五章讨论了一类可化为Abel方程的五次多项式系统的极限环的个数，得到此类平面五次多项式系统至多存在两个极限环的充分条件。

Kimmerle proved that Coleman outer automorphism group is abelian and gave some sufficient conditions on the group being a p — group and trivial group.

Kimmerle又证明了该群还是交换群，而且他们给出了Coleman外自同构群是p'-群的一些充分条件和该群为平凡群的情况。

Hanna: That's over now, isn't it?

都结束了，对吗

You must be ill. You look so pale.

你一定是病了，你的脸色苍白。