概述

On the basis of introduction of the elementary principles and features of Particle Swarm Optimizational- gorithm,a new multi-thresholds segmentation method based on PSO is proposed.

在对粒子群优化算法的基本原理和方法进行简要概述的基础上，提出了一种基于粒子群的多阈值图像分割算法。

Based on the characteristics of biomass fuel, this article summarizes the sources of alkali metals in biomass and the elutriation and migration.

在明确了生物质燃料特点的基础上，对生物质中碱金属元素的来源和析出迁移规律进行了概述。

This paper summarized the environmental behavior of BTEX in soil from the aspects of adsorption-desorption, volatilization, eluviation, and degradation, with the focus on the factors affecting the adsorption and desorption of BTEX in soil. The future research directions were also discussed.

本文从吸附－解吸、挥发、淋溶和降解等4个方面，对BTEX在土壤中环境行为的研究进展进行了综述，特别对影响BTEX在土壤环境中的吸附-解吸行为的不同因素进行了详细概述，并对今后的研究方向进行了探讨。

Research advances on the biological and ecological characteristics of P.japonica are summarized in this paper, which includes the variation in elytra color polymorphism, life history, fecundity, appetite, predation, over-wintering habits, artificial rearing technique, and population dynamics under natur...

本文从龟纹瓢虫的生物学和生态学特性，包括色斑变型、生活史、繁殖、食性、越冬、人工饲养、田间动态以及在生物防治上的应用等方面概述了龟纹瓢虫的研究进展，提出进一步深入开展龟纹瓢虫的人工饲养技术、贮藏技术和色斑变型遗传机制等的研究，不仅可以更好地为农业生产服务，而且可以充实昆虫生态位理论的研究内容。

The development and reform process of Indian electric power industry are presented,and the whole scheme of Indian electric power industry reform before and after the enaction of "2003 Electric Power Act" is illuminated.

概述了印度电力工业的发展状况和改革历程，并以《2003电力法案》为时间界线，阐述了印度电力工业改革的整体方案，介绍了印度电力工业的交易模式，包括市场准入规则、邦间电力交易和电力监管情况等。

Proposed from integrates the enterprise culture construction,in the encompassment company strategic target,fuses from the system principle of design and the movement,as well as must control from the inside the system to integrate the achievements management the scope and so on four aspect suggestions,through controls from the inside the system to carry out the strong binding force to the process,the deference rigorous,standard,the highly effective management thought,impels the achievements supervisory work the continually improvement.

2.1 绩效管理理论概述。绩效管理是企业管理者通过一定的方法和制度确保企业及其子系统(部门、流程、工作团队和员工个人)的绩效成果能够与企业的战略目标保持一致，并促进企业战略目标实现的过程，是管理者与员工之间在目标与如何实现目标上所达成共识的过程，也是增强员工成功地达到目标的能力的管理方法以及促进员工取得优异绩效的管理过程。

Considering the enforceability in the real applications,it gives the optimization plans and analyzes the advantages and disadvantages.

1概述目前获得实际应用的Web GIS系统，大部分限于小数据量的基于浏览查询的模式。

First of all, PC based CNC system of Engraving and Milling Machine is summarized in this dissertation.

本文首先对基于PC的计算机数控雕铣系统进行了概述，研究了数控雕铣系统的软硬件组成。

This paper reviewed the history of inspection and quarantine on quality and technology based on giving a brief account of the entry and exit of inspection and quarantine administration.

本文从出入境检验检疫管理概述入手，回顾了出入境检验检疫的由来和发展史，简要介绍了出入境检验检疫管理工作职责。

The study of triazole derivatives targeted IGPD is mainly reviewed, the enzymology and catalytic mechanism are also described in this paper.

文中介绍了IGPD的酶学特征与催化机理，并着重概述了以IGPD为靶标的三唑磷酸酯类抑制剂的研究进展。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。