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optimize method
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  优化方法
     Research of F Center of BaFBr:Eu~(2+)and Application of Energy Minimize Optimize Method
     BaFBr:Eu~(2+)的F心研究及一种能量最小优化方法的应用
短句来源
     Query Optimize Technology Discussing and the Query Optimize Method of SQL SERVER2000
     查询优化技术及SQL Server2000的查询优化方法
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     The PSO is a evolutional algorithm and a preferable optimize method.
     粒子群优化(PSO)算法是一种进化算法是一种较好的优化方法
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     According to the characteristic of the predictive control,this essay proposed the new approaches of discrete wavelet neural network model stratification of GA optimize method and extended wavelet neural network model optimize method for the application of predictive control.
     根椐预测控制的特点,提出离散小波神经网络模型GA分层优化方法及广义小波神经网络模型优化方法与预测控制相结合的新的应用途径。
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     Study on Optimize Method for Urban Conventional Bus Lines
     城市常规公交线路优化方法研究
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  优化求解方法
     An optimize method in spinning balance problem
     一种动平衡问题的优化求解方法
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  “optimize method”译为未确定词的双语例句
     Optimize Method for Isolation of DNA from Chrysanthmum
     菊花DNA提纯方法的优化
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     An Optimize Method of Computer Immunological Recognition Rules Based on Genetic Algorithms and Simulated Annealing Algorithm
     基于遗传算法和模拟退火算法的免疫识别规则优化
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     Study on Optimize Method of Undergraduate Curriculums' System
     本科课程体系优化设计方法研究
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     As to the weakness of the current ERP software purely adopt the C/S structure, this paper gave a kind of ERP system based on C/S structure model mixed with B/S. Under the actual designing and realizing of the ERP system in the colorful print en- terprise, we formed the optimize method of data- structure and algorithm used in ERP system, and designed the technique frame and the function realizing of the ERP system structure.
     针对目前ERP系统软件单纯采用C/S结构的不足,本文给出了一种基于C/S和B/S混合结构ERP系统的模型,并以实际彩色制印企业ERP系统的设计与实现为背景,从优化的角度构造了ERP系统的数据结构与算法,设计了ERP系统的技术构架和功能实现方案。
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     Optimize Method for Productivity Forecast and Well Testing Design Parameter
     产能预测及试井设计参数优选方法
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In researching performance of a heat exchanger it is quite an interesting problem that an overall boat transfer coefficient k0 is divided into heat transfer coefficients a0 and aH which exist on either side of the wall respectively. On the basis of comments on conventional methods of calculating ae and aH this paper offers a new method--an optimized method.A substantial calculation through an electronic computer was taken up, and gave a more satisfactory result.

由传热系数K_0值中分离出两侧放热系数σ_C和α_H是人们研究热交换器性能所十分关心的问题.本文在评述分离σ_C、α_H常用方法的基础上,提出了一种新的方法——最优化方法.并在电子计算机上进行了实例计算,获得了比较满意的结果.

In this paper a kind of two level grammar is introduced. It is the theoretical basis of a parser generator XYZ/PG we have constructed. We consider that the top-down recursive descent method has the drawback of dividing modules too small, but the bottom-up parser is in one block and thus has the drawback of the other opposite. Both leads to unreadability and dismodifiability. In §2, we introduce a method to decompose a grammar naturally into a group of subgrammars which are connected together in a...

In this paper a kind of two level grammar is introduced. It is the theoretical basis of a parser generator XYZ/PG we have constructed. We consider that the top-down recursive descent method has the drawback of dividing modules too small, but the bottom-up parser is in one block and thus has the drawback of the other opposite. Both leads to unreadability and dismodifiability. In §2, we introduce a method to decompose a grammar naturally into a group of subgrammars which are connected together in a top-down way. This lattice theoretic structure constitutes the outer syntax of the two level grammar. Whereas each subgrammar in it is a bottom-up LR-like grammar which we call LBLR(K) and constitutes the inner syntax. To combine the top-down method with the bottom-up in this way can improve readability and modifia-bility of the parser immensely.In §3 we discuss LBLR(K) in detail. This is a refinement of the BLR(K) grammar introduced in [1]. To LBLR(K), the optimizing method of state-merging discussed in [1] is still completely applicable but the restrictive condition-so called bottom-up condition-proposed in [1] has been relinquished. It has been proved that instead of this condition the apparent "conflicts" possibly occuring after state merging can be avoided by locking backward only one symbol behind the leftmost merged state in the stack. Consequently LBLR(K) is a grammar as large as the one with which the merging method starts and which can be either SLR(K) or LALR(K).

本文介绍一种二级文法,它是我们构造的一个语法分解自动生成系统XYZ/PG的理论基础。我们认为,由顶向下的递归子程序方法分块太细,而由底向上的语法分解程序由一整块构成又失之分块太粗,二者均不便于阅读和修改。在第二节、,我们将介绍一种方法,将一文法自然地分划成一组用由顶向下的方式联结起来的子文法,这样组成格型结构即为这二级文法的外部语法,而每一子文法则是一由底向上的LR型文法,我们称这种文法为LBLR(K)文法,它即构成这二级文法的内部语法。将由顶向下与由底向上两种方法以这样的方式结合起来,可以大大提高语法分解程序的可阅读性和可修改性。 在第三节中我们详细地讨论了LBLR(K)。这文法是由文[1]中介绍的BLR(K)加以改进而成。对于LBLR(K),文[1]所讨论的状态合并的优化方法仍然完全可以应用,但是文[1]所加的所谓由底向上条件这样一种限制性条件则取消了。已经证明,代替这个条件,在状态合并后可能产生的表面上的“冲突”,可以用检查栈内在最左一个合并状态后面的一个符号的方法来予以避免。因此,从SLR(K)或LALR(K)出发,进行状态合并所得到的文法与原来的文法大小是一致的。

An optimized method is shown in designing the channels of the inducer, impeller diffusers with and without blades for a semi-open centrifugal compressor.Starting from the basic conceptions of fluid-mechanics, three criteria are proposed for evaluating the quality of the potential flow field of the semi-open impeller of an air compressor. The optimized geometry and profile of the inducer and impeller can be found by designing in accordance with there criteria.If the radial relation of the bladeless...

An optimized method is shown in designing the channels of the inducer, impeller diffusers with and without blades for a semi-open centrifugal compressor.Starting from the basic conceptions of fluid-mechanics, three criteria are proposed for evaluating the quality of the potential flow field of the semi-open impeller of an air compressor. The optimized geometry and profile of the inducer and impeller can be found by designing in accordance with there criteria.If the radial relation of the bladeless diffuser and the geometrical area of the blades diffuser-inlet are designed with help of the given experimental values, one can controllably decide the surging line of the compressor, so that it could approach most nearly the given characteristic curve of a certain pipeline-net (thus taking a higher efficiency in the whole operation interval), but never interect with it (otherwise a surging would take place).The aerodynamic loads of all the elements can be equalized and rationalized so as to raise as much as possible the adiabatic efficiency of the whole unit.

从流体力学的基本概念出发,提出了鉴别半开式离心压气机叶轮势流场品质的三条准则。根据这三条准则,可设计出叶轮较佳几何参数和型线。 借助给出的试验数据来设计无叶扩压器径向比和有叶扩压器进口几何喉面积,能可控地确定这种压气机的喘振线。使它既与给定的管纲特性线相近(整个运行区效率较高),但又不与它相交(否则引起喘振)。各元件的气动负荷均匀、合理,以利整机绝热效率提高。

 
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