In competitive , cooperative , and dynamic market environment , with the emergence of advanced stratagem such as concurrent engineering , agility anufacturing , supply chain management , the enterprise needs adjust its business process to meet the requirement of customers and markets 面临这些挑战，企业在求生存求发展的过程中，不断产生新的发展战略，并行工程、动态联盟、供应链等新的管理理念不断提出。为了协调这些战略，满足客户及市场的动态需求，企业需要不断调整其商务流程。
China unicom in our country is the first and also only the telecommunication operator that provide the cdma network service uniquely , aim at the customer to put forward the higher request with comprehensive business ability continuously under circumstance towards the scale , capacity , the service grade that move the network currently , how constuct the more reasonable network of cdma and how the technique advantage of the exploitation cdma network provides more datas to increase in value the service , to draw on more customers to join the cdma network the camp become a company of china unicom develops from now on of core problem 中国联通公司作为我国第一个也是目前唯一的提供cdma网络服务的电信营运商,针对目前用户对移动网络的规模、容量、服务等级和综合业务能力不断提出较高要求的情况下,如何建设更为合理的cdma网络以及如何利用cdma网络的技术优势提供更多的数据增值服务,以吸引更多的用户加入cdma网络阵营成为联通公司今后发展的核心问题。
It takes a lot , but the research is not a straight way , especially on the fact that nac2000 is maturity and recognized by the market and constantly upgrades itself based on the new needs of the users . the totally new statistics structure of nacpro , which open up an amplitude future that could extend the brilliant prospect of nacpro , has the intelligent abilities to exploit new functions and improve the current functions which nac2000 cannot compare with 事实上在开发nacpro的过程中， nac2000也一直在根据用户使用中不断提出的新需求进行版本升级，但是nacpro所构建的全新数据构架具备的开发新功能提升老功能智能化的能力是nac2000所不能比拟的， nacpro所构建的全新数据构架拓展出了一个足够延伸nacpro未来前景的广阔空间。
With expansion of database use , relational database not only is approved by the masses of users , and people put forward new request constantly with this , hope and can make high quality of analysis of data in time . in addition datum that need to be dealt become more and more large , and mistakes of data appear unavoidably among them . so data check - up becomes one of the main subjects studied 随着数据库应用的扩展，关系数据库不但得到广大用户的认可，而且人们对此不断提出新的要求，希望能够对数据及时做出高水平的分析；另外，由于需要处理的数据越来越大，在其中出现数据的差错是不可避免的，因此数据校验也成为研究的主要课题之一。
Through constructing chemistry teaching resources web which specially aims to vocational school , the students continually find , analyze and resolve problems during participation , and then cultivate active study attitude , study initially and form information literacy to an extent ; moreover , learning space of the students is enlarged effectively by extending learning resources , and active learning and cooperation learning are improved . learning is " social negotiation " and " individual construction " in the active participation is fully explained 通过构建针对职业中学的化学教育资源网，让学生在参与的过程中，不断提出问题、分析问题、解决问题，养成积极的学习态度，自主进行学习，并形成了一定的信息素养；而且通过拓展学习资源，有效地扩展了学生的学习空间，促进了学生的主动学习、协作学习，充分说明学习就是“社会协商” 、学习就是积极参与中的“个体建构” 。
Many professionals feel that supervisory bodies , in the name of consumer rights , are constantly pressing for new laws that give them more powers and at the same time shifting the responsibilities to professionals who find themselves defenselessly pressed to the wall at the receiving end . professionals are concerned about these moves as they change the mediatory role of professionals , narrow their scope of societal contribution and indirectly increase the cost of enterprises 监管机构现正在藉著维护消费者为名，不断提出新法例以扩张本身权力，同时亦将可负的责任推向无力自卫的专业人士身上，更令专业人士作为中介者的角色转变，活动空间压缩，这种亦是间接加重经营者成本的趋势，令专业人士深感不安。
With the rapid development of network technology and wider applications of internet services , the internet is getting increasingly bulky . the supplies of the internet and requirements of customers hence are becoming more and more diverse and complex , so there are more requirements of network performance and quality of service being brought forward 当前随着网络技术的高速发展和internet服务的普遍深入, internet的规模日益庞大,其提供的服务和用户的服务需求也更加多样化和复杂化,同时也对网络性能和网络服务质量不断提出新的要求。
At the same time visual tracking is also the basis of some advanced machine vision for example behavior recognition this project is a hot point of the international artificial intelligent and the computer vision community a large amount paper is published in all kinds of international conference on machine vision . different methods are proposed . but because of the complexity of the illumination condition and the object modeling of the real world , no one method is general 本课题在国际人工智能及机器视觉界是一个研究热点问题，在各种关于机器视觉国际会议中都有数量可观的文章涌现，各种方法不断提出，但是由于现实世界光照条件，目标物建模等的复杂性，还没有一种较实用较通用的方法来实现对目标进行跟踪的方法。
