查询词典 parallel axis theorem

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。

Differential intermediate value theorem and the Taylor formula In this paper, leads to Fermat's theorem Rolle Mean Value Theorem, and then constructing auxiliary function of the Lagrange mean value theorem and Cauchy's Mean Value Theorem to prove that.

微分中值定理和泰勒公式本文通过费马定理引出罗尔中值定理，再构造辅助函数对拉格朗日中值定理和柯西中值定理进行证明。

Use moment of inertia terms to rigid oval ring around the long axis and the short axis of the moment of inertia, and then use orthogonal axis theorem calculation rigid oval ring around the ring with the vertical plane through the central axis and the moment of inertia.

运用转动惯量定义计算出椭圆环刚体绕长轴和短轴的转动惯量，然后用正交轴定理计算椭圆环刚体绕垂直与环平面且通过中心轴的转动惯量。

Axis X of the frame is defined as seam axis, axis Z is defined as bisector of included angle, and axis Z is the axis of weld gun in the simulating environment.

将焊缝特征坐标系的X轴作为焊缝的轴线，将Z轴作为焊缝的中心线，Z轴即为仿真环境下的焊枪的轴线。

After introducing VI and advantages of LabVIEW on programming in general, a module for fault diagnosis of rotor based on LabVIEW is discussed. It is a valuable part of the online monitoring system. The module is comprised of axis orbit and full spectrum and in the axis obit module three choices are available: original axis obit, average axis obit and certain frequency multiplication axis obit.

在简介了虚拟仪器和LabVIEW编程优点的基础上，介绍了利用LabVIEW开发的转子故障诊断模块，它是在线监测系统得重要组成部分，包括轴心轨迹模块和全谱分析模块，其中轴心轨迹模块包括信号的原始轴心轨迹，各倍频轴心轨迹和平均轴心轨迹。

CNC face milling and drill centres hole machine （Referred to as CNC milling fight machine ）,machine is mainly used for shaft parts batch and mass production, miling shaft at both ends 、 drilled the centers hole and turning one end of cylindrical axis, configured SIEMENS 802C CNC system , is controled by three axis, that is, the left X-axis spindle box movement, Y Right-axis spindle movement, Z-axis hydraulic self-centering jig up and down movement, according to the procedure to complete part of the auto-processing, processing of high precision and high efficiency.

数控铣端面钻中心孔机床，机床主要用于轴类零件成批和大批量生产，铣削轴的两端面钻中心孔并可套车轴一端的外圆，配置SIEMENS 802C数控系统，三轴控制，即X轴左主轴箱运动，Y轴右主轴运动，Z轴液压自定心夹具上下运动，按程序完成零件的自动加工，加工精度高、效率高。

The traction arm includes: a first supporting plate slidably connected to a beam of the bench; a second supporting plate pivotally connected to the first plate for the rotation of the base about a first axis that is substantially horizontal and substantiallty at right angles to the front plane of the first plate for appllying the base to the repair bench; a third supporting plate pivotally connected to the second plate for the rotation of the base about a second axis that is substantially at right angles to the first axis; and pivoting elements for the rotation of the base about a third axis that is substantially at right angles to the second axis.

牵引杆包括：一可滑动地连接于修理台梁的第一支承板；一枢接于第一板、用于使底座绕一大体上水平且大体上垂直于将底座装在修理台的第一板的前平面的第一轴线而转动的第二支承板；一枢接于第二板、用于使底座能绕一大体上垂直于第一轴线的第二轴线转动的第三支承板；以及用于使底座能绕一大体上垂直于第二轴线的第三轴线转动的枢接件。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。