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In this paper, an extended divide and conquer algorithm is intended proposed, which is for solving the real symmetric band generalized eigenvalue problem under distributing environment Eigenvalue partition theorem is presented and proved Based on divide and conquer by extension, this algorithm computes generalized eigenpaires of symmetric band matrix pencil by bisection and generalized Rayleigh quotient iteration Theoretic analysis and numerical results show that this algorithm is better than the classic software package LAPACK when bandwidth is small and the scale is large Combined with multisection, which has good parallelism, it got good effects under distributed environments

提出了分布式环境下计算对称带状广义特征值问题的一种扩展分治算法,给出了特征值分割定理及其证明算法在扩展分治的基础上,利用二分压缩结合广义Rayleigh商迭代计算广义特征对理论分析和数值实验表明,对于窄带宽大规模的广义特征值问题,该分治算法明显优于LAPACK软件包结合并行性好的多分法,在分布式环境下获得了很好的并行效果1 引言本文研究了对称带状广义特征值问题Ax =λBx ( 1)的并行计算,其中,A ,B均为半带宽为r的n阶实对称带状矩阵且其中之一是正定的本文总假设B是正定的求解此问题有两种传统方法,第1种方法是通过计算矩阵B的Cholesky分解,将问题( 1)转化为标准特征值问题[1~3] ,进一步

Liber Abaci emphasizes summed-up algorithm, but does not pay attention to the form of propositions derived, and it mainly reflects the tendency of practical algorithms, such as principal method from India and the algebraic knowledge from the Arab. In Liber Abaci it is found some problems similar to ancient Chinese mathematics like pursuit problems, drainage problems, business problems, hundred fowls problems, remainder problems, indeterminate problems, as well as some Algorithm—fraction addition and subtraction,the compound rule of three, the method Elchataym and the method of Excess and Deficit, and so on.

在系统梳理《计算之书》数学内容过程中,笔者发现《计算之书》中存有与中国古代数学中相似的实用算题,如:追及问题、排水问题、经商问题、百鸡问题、剩余问题、不定问题等,以及和中算一致的算法:分数算法、多率法和重今有术、第二类"Elchataym算法"和盈不足术等。

The purpose of this dissertation lies in perfecting relative laws of administration of medical waste,according to the lawmaking and law system of foreign countries.meanwhile,the notion is provided to consummate relative law system and achieve the purpose of holding in the administration of medical waste,environment protect and human health.this dissertation puts forward first-step conceivableness of perfecting lawmaking and law system concerning the administration to disposal of medical waste.because our country's law system concerning medical waste is too immovable and abstract,this research will make our country's law system of the medical waste more concrete and more definite,which will strengthen the operability in the fulfillment and make the lawmaking spirit embodied.simultaneously it provides legal basis and policy support for the administration to disposal of medical waste.the problem of the administration of medical waste enlarges the difficulties of disposal process.to perfect lawmaking,law-executing,law-supervising.is advantageous to strengthen the administration to disposal of medical waste of our country.meanwhile it has theoretic meaning and application value for environment safety and human health.this dissertation is totally divided into four parts.the first part explains the current condition of the administration to disposal of medical waste of our country,which introduces the concept of medical waste,the harm of medical waste,the necessity of administration, current lawmaking condition and present law system of the medical waste.the second part introduces the general situation of lawmaking concerning the administration to disposal of medical waste of the united states,eu,japan and korea.simultaneously it explains the apocalypse of administration to disposal of medical waste of our country.the third part points out the existent law problem of the administration to disposal of medical waste,including lawmaking problem,law enforcement problem and law system problem.the fourth part aims at the relative suggestions to the existent law problems of the administration to disposal of medical waste of our country.the suggestions want to raise lawmaking layer,perfect lawmaking contents,strengthens law enforcement,practice the law system of the manufacturer to be responsible for the medical waste.meanwhile,it gives the advice on the punishment-compensation system,the conduct permit system and the risk fund system.

本论文研究的目的在于借鉴国外有关医疗废物在立法、执法、法律制度等方面的经验,完善适合我国医疗废物管理的相关法律,提出我国有关医疗废物管理的立法构想,完善各项相关的法律制度,以达到规范医疗废物管理、保护环境、保护人类健康的目的。本论文为完善我国医疗废物管理的立法、执法和法律制度提出初步设想,由于我国有关医疗废物的法律制度规定得太原则、太抽象,通过本论文研究,使得我国医疗废物法律制度更具体、更明确,增强在实践中的操作性,使立法精神充分得到体现。同时可以为我国医疗废物管理工作提供法理依据和决策支持。我国医疗废物管理体制的问题加大了医疗废物治理的难度,立法、执法、监督等方面的完善有利于加强对我国医疗废物的管理;在保障可持续发展的环境安全和人类健康领域也具有理论意义和应用价值。本文共分为四个部分,第一部分说明了我国目前医疗废物管理的现状,介绍了医疗废物的概念、危害、进行管理的必要性、当前我国医疗废物的立法现状和法律制度现状。第二部分介绍了美国、欧盟、日本、韩国关于医疗废物管理的立法概况及对我国医疗废物管理的启示。第三部分指出了我国医疗废物管理存在的法律问题,包括立法问题、执法问题和法律制度问题。第四部分针对我国医疗废物管理存在的法律问题提出了相应的建议。建议要提高立法层次、完善立法内容、加强执法力度、实行生产者负责分类回收的法律制度、集中处置法律制度、惩罚性赔偿制度、经营许可证制度、环境责任保险制度和风险基金制度。

Firstly, we defined a series of new concepts as the schemata containment, schemata competence, schemata intersection, and schemata dominance. Then, we defined the GA schema deceptiveness based on primary schemata competence, including complete schema deception, consistent schema deception, sequential schema deception, and basic schema deception.

4系统研究了GA欺骗问题,提出了模式包含、竞争与关联等概念,给出了基于主竞争关系的模式欺骗性与GA欺骗问题的严格定义,包括完全欺骗问题、一致欺骗问题、序列欺骗问题和基本欺骗问题

Firstly, according to the difficulties in the optimization of chemical engineering and the intrinsic disadvantage of deterministic optimization algorithms, this work analyzed the importance and advantage of stochastic algorithms, and proposed some important aspects in research on them. Secondly, genetic algorithm was applied to two problems of data driven modeling, one of which was combination problem, the other was mixed integer nonlinear programming. Thirdly, systemic investigations were made on the basic structure, dynamic behavior and modifications of particle swarm optimization. Lastly, two kinds of proposed PSO algorithms were applied on calculation of phase equilibrium, which is nonconvex optimization.

本文首先根据化工优化中存在的困难和确定性优化算法内在的缺点,分析了随机优化算法的重要性,并提出研究随机优化算法应注意的问题;其次,将遗传算法应用于两个数据驱动建模问题,一为组合优化问题,一为混合整数优化问题;再次,从粒子群优化算法的基本结构、运动行为、改进方法做了系统的研究:最后,将提出的两种改进粒子群优化算法应用于相平衡计算问题,为非凸全局优化问题

From the practice of teaching, this paper explores the problems on poem teaching. Such as: Saying any thing all from books,grasping poem impractically and doctrinally,lacking the direction of methods on enjoying a poem,no training about writing,the fourth problem is only put forward. This paper analyses the causes and gives the tactics on the problems of the first three.

本文从教学实际出发,探讨了诗歌鉴赏教学中"吊书袋"的问题、整体把握的空洞与教条的问题、欣赏方法的指导的欠缺问题、诗歌写作尝试的空缺问题,对前三个问题分析了其产生的原因以及应对策略,对第四个问题只是提出而已。

The linear function applicable scope is broad, when the reservoir turnover water volume and the time, the student leaves the staircase mouth population and the time and the time and the motion communication speech spends the comparison and so on the relational question has the important application;The study linear function, may deepen in the life the linear question understanding and the understanding, is helpful in solves some simple function problem; The linear function some problem solving method has the universality in mathematics, the linear function related theory may use for to solve some other mathematics problem, For instance the dual linear equation group, a Yuan inequality, a Yuan quadratic equation most value question and some complex mathematics question, the light is studies the linear function the theory is insufficient, the key is can utilize actual the linear function goes is our final goal.

一次函数的适用范围广,在蓄水池的进出水量与时间、学生出楼梯口人数与时间与时间和移动通讯的话费比较等的关系问题时均有重要的应用;学习一次函数,可以加深生活中线性问题的认识与理解,有助于解决一些简单的函数问题;一次函数的一些解题方法在数学中具有普遍性,一次函数的有关理论可以用来解决一些其它的数学问题,比如二元一次方程组、一元一次不等式、一元二次方程的最值问题及一些复杂的数学问题,光是学习一次函数的理论是不够的,关键是能把一次函数运用到实际中去才是我们最终的目的。

Wanka studied two kinds of dualproblem in finite dimensional space, namely, an extended Fenchel type and Fenchel-Lagrange dual based on the conjugate theorem in convex optimization problem.

Wanka利用有限维空间中凸优化问题的共轭理论,研究了两类对偶问题,即广义Fenchel对偶问题和Fenchel-Lagrange对偶问题,后者是经典Fenchel和Lagrange对偶问题的组合,二者都是在扰动理论基础上产生的,还提出了一个约束条件保证其凸优化问题中强对偶成立。

This paper, beginning by seeing the theory of labor-value as footstone of scientific socialism, and following the principles of "correct understanding, deeply dredging-up, richening and development", aims to a discussion of some questions about the labor-value theory, and try to clarify some confused views or misunderstandings on the theory, and then, based on this clarification, to focus attention onto three central questions connected with both the labor-value theory and our todays practices.

本文从劳动价值论是科学社会主义的理论基石这一角度切入,立足于&正确理解、深入挖掘、丰富发展&这样一个基点,展开对劳动和劳动价值论几个问题的探讨,试图澄清理论界对理论本身的一些混乱的认识和误解,在此基础上,对现实中相关的热点问题提出自己的一些观点和看法。深化对劳动和劳动价值论的认识,涉及现实中的很多问题和理论本身的方方面面,本文仅就其中的三个关键问题展开探讨:一是劳动的本质问题,二是劳动和价值的创造问题,三是劳动和价值的分配问题

The writer carries on the related theories of the problem situation to study the big case foundation well up, with the situation cognizes and studies a class of theories for leading, and have three stages to launch to practical research; The first, the research into big case strategy of problem situation and the process of tiding up some materials in the chemistry teaching.

笔者在对问题情境的相关理论进行研究的基础上,以情境认知与学习理论为指导,分三个阶段展开实践研究:第一,化学教学中问题情境创设的策略研究和案例素材的整理加工,包括结合生活、生产和当前科学技术发展中的实际问题创设问题情境,从化学实验入手创设问题情境,利用化学史料创设问题情境,利用学生已有知识创设问题情境或引起学生的认知冲突等。

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推荐网络例句

On closer examination, though, this is not a vote for multilateralism but just the opposite.

仔细审视后我们发现,这并非是对多边主义投出的赞成票,而是恰好相反。

Uncovering their weak spots, so I can defeat them.

揭露出他们的弱点,这样我就可以打败他们了。

Methyl bromides, in C_(3v) symmetry, have been extensively studied at their first absorption A-band because the behavior of these molecules can be used as a prototype for depicting numerous types of photodissociations in a variety of polyatomic molecules.

例如,有很多研究报道了C_(3v)对称的溴甲烷等分子在第一吸收带的光解,这是因为其光解行为可以作为理解其它多原子分光解的原型。