完全系统

In this paper, we use some algebraic geometry methods to study the construction of χ-invariant algebras of some linear corresponding moduli space of these systems. Moreover, we completely determine the stable and semistable locus of these systems.

本文，我们以代数几何中的一些方法来研究某些线性动力系统的χ-不变代数的构造，并给出这类系统的相应的参量空间的刻划，进一步，完全决定了这类系统的稳定点、半稳定点的轨迹。

Influence of dry or wet bonding on microleakage of Ti alloy inlay;2. Influence of dry or wet dentin bonding surface on wet bonding strength: a microtensile study;3. To study the microstructural influence of dry or wet dentin bondin g surface on the dentin bonding interface, five wet bonding systems were used to bond Chrisma B20 resin with dry or moist dentin surface with scanning electron m icroscope.

结果湿粘结时5种粘结系统在粘结界面获得良好的渗透图象；干燥粘结时，两种以丙酮为溶剂的粘结系统在干燥粘结时形成的粘结界面，与湿粘结时有明显的区别，混合层较薄，并有明显的不完全渗透的结构和混杂层的形成；以酒精和水为溶剂的粘结系统在两种不同粘结状态时粘结界面的超微结构没有明显的区别。

Therein, by adopting the ISCSI protocol, the local data storage sub-system constructs the circuital access pattern of the taxation data. The system eliminates the unbalance phenomena between the capability and the demand of the data storage under the traditional bus storage pattern. Under the centralized control pattern, it provides the information access and shares service with the great data volume, the high speed of data transportation and the high availability for the taxation system. By remotely building a backup data center that is totally consistent with the local data center on the IT foundational fabric, the remote data backup sub-system uses the geographical dispersibility of the remote data center and adopts the LVR software replication technology. It implements the synchronous data replication between the local and remote data center, changes the zero standing capability on the great disaster event under the single data center pattern and raises the standing capability on the disaster events for the application and data in the taxation system. By adopting the dynamic replication technology between the heterogeneous data source, the heterogeneous data conformity sub-system successfully shields the various heterogeneous ingredients of the present system.

其中，本地数据存储子系统采用ISCSI协议构建了税务数据网络存储模式，消除了传统总线型存储模式下数据存储性能和存储需求之间的失衡现象，在集控管理模式下为税务系统提供了超大数据容量、高数据传输率和高可用性的信息存取和共享服务；远程数据备份子系统通过在异地构建一个和本地数据中心IT基础架构完全一致的备份数据中心，利用远程数据中心在地理上的分散性，基于LVR软件复制技术实现了本地和远程数据中心之间信息的实时同步，改变了过去单一数据中心模式下对大型灾难事件的零抗灾能力，提高了税务系统内应用和数据对灾难性事件的抵御能力；异构数据整合子系统采用异类数据源动态复制技术，成功屏蔽了目前系统内存在的各项异构成分。

In order to eliminate the influence caused by the nonminimum phase characteristic of a common Boost DC／DC converter, Viswanathan K has proposed a novel tristate Boost DC／DC converter. For enhancing performance, the statespace averaging model of this converter was first presented in this paper. Due to the nonlinear nature in this model, an inputoutput feedback linearization technique was adopted, and a complete controllable linear system was obtained. Then a statefeedback control strategy was designed based on this linear system. Simulation results show that the proposed control strategy can assure constant output voltage in a wide range, so as to realize the stability of the system during large fluctuation of power supply and load disturbance. Good dynamic performance can also be achieved.

针对 Viswanathan K为消除普通BOOST DC／DC变换器的非最小相位特性而提出的三态Boost DC／DC变换器，为进一步提高这种电路拓扑的性能，在建立了变换器状态空间平均模型的基础上，针对其多变量、非线性特点，采用输入输出线性化将其转化为一个完全可控的线性系统，在此基础上应用现有成熟的线性控制策略进行了控制系统的设计，并且采用MATLAB进行仿真验证，结果表明：这种非线性控制策略可以确保输出电压在大范围内恒定可调，且即使存在大范围扰动(输入电压和负载变化均较大)的情况下，系统也可以确保稳定性和良好的动态性能。

If the structure of the same system is transformed, different systematic conducts and functions will arise consequentially.

同样要素组成的系统，如果结构发生转变，就可能引起性质完全不同的系统行为，并且涌现出不同的系统功能。

By the use of these,the defectiveness of anygeneral vibrating system can effectivelly andsimply be determined,and the Jordan canonicalform corresponding to the matrix of the systemcan also be given completely.

运用该准则和方法，可简便且有效地判定振动系统的亏损性质，同时可完全确定与系统矩阵相应的若当标准形，为进一步研究亏损系统的动力分析理论奠定了基础。

Next, what have double input and variable of 2 dimension appearance in the light of a kind is nonlinear system, used opposite curvature concept and curve to design controller of contract of appearance of 2 dimension plane by basic theorem, the curve of contrail of appearance be accusinged that controller of contract of this kind of appearance can assure a system and referenced contrail curve have identical figure.

梗概： 针对一般控制系统，利用微分几何中的曲线理论提出了外形变量、被控外形轨迹曲线和外形合同控制等概念。然后，针对一类具有双输入及二维外形变量的非线性系统，利用相对曲率概念和曲线论基本定理设计了二维平面外形合同控制器，这种外形合同控制器能够保证系统的被控外形轨迹曲线和参考轨迹曲线具有完全相同的外形。

The existence of an attractor is one of the most important characteristics for a dissipative system,the long-time dynamics is completely determined by the attractor of the system.

在这种耗散型的无穷维动力系统中，吸引子的存在性是最重要的特征之一，系统的长时间性态完全被系统的吸引子所决定。

A case ofapplication of CAN bus on the distributed automatic system ofsubstation is illustrated.To meet the need ofautomatic controlsystem ofsubstation,a network is necessity because ofthe distributed control units ofthe substation.To shortenthe developed period of the system,an interface bridge between the RS232 and CAN bus is made.The result oftest run shows thatthe requirements ofsystem can be satisfied by the project.

摘 要：对一个把CAN总线应用到分布式变电所自动化系统的例子进行了分析，对于分布式变电所自动化系统来说，通信网络的效率、安全性和实时性具有重要意义，在实际工作中，通过在现行测量、控制和保护单元外增加一个RS232和CAN总线之间的转换器，构成变电所自动化系统的现场总线网络，试运行情况表明：该方案完全能满足系统的要求。

The modern is a kind of all new system according to the technical purchase system of Internet, its complete body now the purchase system opens sex, vivid and safeties, is a very important direction that buys the system development.

现代基于互联网技术的采购系统是一种全新的系统，它完全体现了采购系统的开放性、灵活性和安全性，是采购系统发展的一个很重要的方向。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。