查询词典 parallel connection

Based on the instantaneous motion of the moving platforms, the uncertainty configuration conditions and simplified uncertainty configuration equations are obtained for the widely studied parallel manipulators, such as planar 3-DOF parallel manipulator, spherical 3-DOF parallel manipulator, 6-SPS triangular platform parallel manipulator, three-branch 6-DOF parallel manipulator, twotriangular-platform parallel manipulator, DELTA parallel manipulator, 5-DOF parallel manipulator, two-tetragonal-platform parallel manipulator, pentagonal platform parallel manipulator and Stewart platform parallel manipulator.

采用这一方法，根据国内外常用的并联机器人机构的形式，建立了平面3自由度并联机器人、球面3自由度并联机器人、三角平台并联机器人、三支链6自由度并联机器人、双三角平台并联机器人、DELTA并联机器人、5自由度并联机器人、双四角平台并联机器人、五角平台并联机器人和Stewart平台并联机器人的奇异位形条件方程，除了Stewart平台并联机器人外，这些条件方程均为低于6阶的行列式，机器人结构类型不同，其简化程度各不相同。

Parts of current parallel databases support expanding of data types, but all of them lack of theoretical foundation. It is difficult to predicate the performances of parallel query, complicated to optimize parallel query and unattainable to keep the correctness of parallel query optimization This thesis, for the first time, combines monoid algebra system with BSP parallel model systematically, and provides a general-purpose parallel object-relational database systems-PORDBMS.

文章系统地研究了资源分配问题的分解协调理论与方法，给出了非线性分解式模型的构造和有效的求解方法，其中对主问题提出了适应性较强的修正算法，可用于一些难于公式化的问题的模型构造与求解，逐步寻优策略可有效地求解非线性关联约束优化问题。

The traditional query tree optimization methods,parallel database optimization methods based on left linear trees and right linear trees,bushy trees,and operation of the forest,have their own pros and cons,they have been more in-depth and maturity of the study.The query optimization method based on multiple weighted tree has studied its model of parallel query plan,its complexity model of parallel query plan and query optimization algorithms.The semantic query method transforms an inquiry into one or several semantic equivalence inquiries then has to find and implement a strategy to achieve a better query.Agent-based parallel database query optimization using Multi-Agent technology to automatically search the integrity constraint conditions which are related to the determined query,there for,the efficiency between several relations' joins has been greatly improved.The parallel optimization algorithm,based on genetic algorithm which is suitable for multi-joins of cluster environment,has deeply studied the relations storage options,multi-joins query optimization and query processing and other key technologies based on cluster parallel database.

传统的查询树优化方法，即基于左线性树、右线性树、浓密树、操作森林的并行数据库查询优化方法，各有优劣，对其的研究比较深入、成熟；基于多重加权树的查询优化方法，研究了其并行查询计划模型、并行查询计划的复杂性模型和查询优化算法；语义查询优化方法将一个查询变换成一个或数个语义等价的查询，进而寻找并执行这些等价查询中具有较好实现策略的一个；基于Agent的并行数据库查询优化采用Multi-Agent技术自动查找与给定查询有关的完整性约束条件，使得多个关系间连接操作的效率得到很大的提高；基于遗传算法的并行优化算法，深入研究了基于机群并行数据库中关系存储的选择、多连接查询优化和查询处理等关键技术。

Design random number generators with good independence and good uniformity is the key in reliability parallel simulation. Four algorithms of parallel random number generators are introduced. They are segmented parallel algorithm and leapfrog parallel algorithm of multiplicative congruential generator and generalized feedback shift register generator, parallel algorithm of lagged Fibonacci generator, and parallel algorithm of combined generator.

可靠性并行仿真的关键问题是设计独立性、均匀性良好的并行伪随机数序列，本文给出了基于分段并行算法和跳跃式并行算法的乘同余发生器、GFSR发生器和延迟Fibonacci发生器、组合发生器等的并行算法，组合发生器能够产生周期为2.3×10〓的伪随机数序列，且品质良好。

The thesis is composed of preface, straight matter and conclusion. The straight matter includes 5 parts. Part 1 mainly defines the concept, characters, and patterns of parallel import of trademark goods. Part 2 sets forth the causes and influences of parallel import of trademark goods in deep-seated angle. Part 3 undertakes nomological analysis to parallel import of trademark goods. Part 4 inspects the attitude view of international treaty, America, the Europe Union and Japan over the parallel import of the trademark goods. Part 5 firstly reviews the present PRC laws of parallel import of trademark goods, and puts forward legal suggestions on problems arising from the parallel import of trademark goods.

本文首先对商标产品平行进口的概念、特征及典型形式进行界定，为后面论述的展开提供了一个广阔的平台；其次，从比较深层的角度论述了商标产品平行进口的成因及影响；接着，对商标产品的平行进口进行了法理分析，探讨了解决商标产品平行进口的传统理论，并提出了新的解决商标产品平行进口的理论基础：商标功能和竞争政策；然后，考察了国际公约、美国、欧盟和日本在商标产品平行进口问题上的相关立法和司法判例；最后，回顾了商标产品平行进口在我国的法律现状，并对我国今后应该如何应对商标产品平行进口问题提出了规制原则和立法建议。

In the paper, we define the series-parallel connection model frame firstly, and analyze the application conditions and areas of the series-parallel connection model frame. Then we present index system of operational effectiveness evaluation of surface to air missile weapon system. At last apply the series-parallel connection model frame to evaluation of surface to air missile weapon system.

文中首先明确了串并联模型框架，分析了串并联模型框架的应用条件和适用范围，而后建立了地空导弹武器系统作战效能综合评价的指标体系，最后应用串并联模型框架对地空导弹武器系统效能进行评估。

Currently, research of parallel databases mainly focuses on relational database, and parallel environments are always based on special parallel architectures. With the rapid expanding of the markets of object-relational database, requests to parallel processing are increasing screamingly Certainly it will be significant to build a parallel objectrelational database. But it is a challenging work too.

本文分析了我国电力系统运行特点及其对短期调度与运行优化提出的要求，针对调度中心能量管理系统的重要组成部分——短期调度与运行优化，应用数学规划的理论和方法，解决复杂水火系统短期经济调度中的水火电计划与调度和电网络运行优化问题。

Kinematics and dynamics modeling and analyzing method of a 3-RRRT parallel robot was studied. Kinematic model of the 3-RRRT parallel robot was set up with both the branch bar's relative coordinates and movable platform's absolute coordinates used as it's generalized coordinates. On the base of Kane's equation, dynamics model of the 3-RRRT parallel robot was built. Dynamic Numerical simulation of the 3-RRRT parallel robot was finished by using Matlab software, and so it provides valuable reference for motion control strategy of the 3-RRRT parallel robot.

研究一种3-RRRT新型高速搬运机器人运动学与动力学建模及分析方法，以支链构件相对运动坐标和动平台绝对运动坐标作为广义坐标，建立了3-RRRT型并联机器人的运动学模型，结合带乘子的凯恩方程建立了3-RRRT型并联机器人的动力学模型，并利用Matlab软件平台进行了动力学数值仿真，进而为3-RRRT型并联机器人的控制策略研究提供参考。

The results show that only parallel-parallel connection and parallel-series connection can enhance the voltage gain and the output power, and the parameters of the PTs must be consistent.

结果表明只有并-并联接和并-串联接可以提高电压增益和传输功率，而且要求参与联接的变压器参数具有很高的一致性。

The relations among three parallel sections,such as parallel mean curvature vector fields, parallel isoperimetric section and parallel umblic section,on submanifolds in the constantly curved Riemannian manifolds R ~ are studied.

讨论常曲率空间Rn+p中子流形上三类平行截面：平行平均曲率向量场、平行等参截面、平行脐截面三者之间的相互关系。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。