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This thesis deeply researches the J2EE security strategy on the application tier of enterprise system. The security strategy predigests the information security model and meets the security requirements expediently. But there are some disadvantages when the security requirements become more complex. The expositive security on the Web-Tier can not offer more information for authentication; there is no authentication for EJB-Tier to use, make the EJB-Tier depend on the Web-Tier; J2EE uses database or application server to manage the role information. Use database to manage the role information will increase the complex of enterprise application, and the way of application server will reduce the ability of migrate other J2EE platform. To solve these problems, the thesis designs an improved security strategy model.

本文从企业级系统应用层安全的角度出发，深入研究J2EE多层体系结构的安全策略模型。J2EE提供的安全策略简化了系统的信息安全模型，能够很方便地满足基于J2EE的分布式应用系统的安全需求，但是在面对更加复杂的安全需求时，J2EE安全策略在验证授权和角色管理中还存在不足之处：其在Web层的声明式验证机制无法为用户提供更多验证信息，可扩展性较差；在EJB层缺少业务逻辑层可供采用的验证机制，而是借助于Web层的验证机制，其耦合程度较高有悖于业务逻辑分离于表现逻辑的原则；在角色管理方面，J2EE采用数据库或者应用服务器来管理角色信息，其中，数据库管理角色的方式增加了应用开发的复杂度，应用服务器管理角色降低了系统的可移植性，两者都具有片面性。

Basing the ancestorses" research, this part considers synthetically the dialectical relation between the way of network information organization and the findability"s degree of network information organization, puts forwards how organizing the network information resource to face users. In fact," facing users " increases naturally the findability of network information resource.

在基于前人研究的基础上，综合考虑面向用户的网络信息资源组织方法和网络信息资源的可检索程度之间的辩证关系，提出在网络环境下如何组织网络信息，使之真正实现&面向用户&，而真正地&面向用户&自然地就会提高网络信息资源的可检索性。

Based on the theory of technical innovation and technical innovation diffusion elaborated, as well as fluxionary calculus and game theory, the thesis analyses corporation adoption with game theory in the process of technical innovation diffusion: analyzes in the situation of information symmetry and information asymmetry the gambling between the supplies and the latent users of innovation, discusses the mechanism of the phenomenon "reversion choice" with emphasis in the situation of information asymmetry, and also introduces signal transmission model and information screen model to realize Pareto improvement; at the same time it analyzes in the situation of complete rationality and limited rationality the gambling between the latent users of innovation.

依据已阐述的技术创新和技术创新扩散理论，以及微积分、博弈论等相关理论，对技术创新扩散中企业采用行为进行了博弈分析：分析了信息对称和信息不对称情况下创新供给者与创新潜在采用企业之间的博弈，重点讨论了信息不对称时&逆向选择&现象发生的机理，并引入信号传递模型和信息甄别模型以实现帕累托改进；同时分析了完全理性和有限理性情况下创新潜在采用企业间的博弈。

In the process of information acquire and integration through eye movement, when the presenting time was in 100ms, information from fixations would be influenced. Moreover, the level of integration would be lower. When the presenting time is between 100ms and 200ms, subjects would be able to acquire information from fixations and integrate information from foveal and parafoveal more effectively.

3在通过眼跳获得并整合情景信息的过程中，当情景呈现时间在100ms之内，青少年从注视点区域的信息获得就会受到影响，且情景信息的整合水平较低；当呈现时间在100～200ms之间，青少年则可以获得注视点区域信息，并可有效整合中央窝和副中央窝信息。

Already after oneself research and ask for advice of a senior fellow apprentice, discover HDFS offers the API that uses to programmer, basically be FileSystem and DFSClient, these two kind offerred use at founding catalog, found a file, obtain the means of file information, a FileSystem is a high level kind, DFSClient is a ground floor kind, fileSystem used DFSClient, DFSClient can arrive than taking than FileSystem photograph a few more detailed information, if the file includes those Block, and Block is in those Datanode are classy information, but they are incontrollable Block is written to those machines, but can install a few backup, place to belong to a few information such as user, attributive.

已经自己的研究和一个师兄讨教后，发现HDFS提供给程序员使用的API，主要是FileSystem和DFSClient，这两个类提供了用于创建目录，创建文件，取得文件信息的方法，FileSystem是高层的一个类，DFSClient是一个底层的类，FileSystem使用了DFSClient，DFSClient可以比FileSystem相比拿到一些更详细的信息，如文件包括那些block，以及block在那些datanode上等信息，但是他们都不能控制block写到那些机器上，但是可以设置几个备份、所属用户、权限等一些信息。

From the angle of the information department of institutions of higher learning according to the situation of using the information, this paper demonstrats how to fullly dig and use the information, emphasizes on the type of documentary and intelligential information, also proposes some suggestions according to our college' s real situation.

本文从高校图书情报部门的角度，依据高校用户使用情报的情况，对如何充分开发和利用情报谈了一些看法。着重从文献型和智力型情报的开发与利用进行了一定的分析，根据本院的实际提出了建议。

The activity of information receiving is a popular behaviour of kuman , the principle of information receiving is the generaation and summation of the essence and lav of the activity of information receiving This paper discusses rather detailly the basic principle of information receiving and its guiding role; the principle of subjective nature and its guiding role; the principle of objective nature and its guiding role ; the principle of optimization aad its guiding role on the basis of discribing and dete...

信息经纪市场是信息市场和经纪市场相互融合后分化出来的分市场，它包括信息买方、卖方、管理方和经纪方4个构成要素。信息经纪市场的市场机制就是由这些构成要素的相互作用、相互影响和相互制约所形成的信息商品的供求机制、价格机制和竞争机制共同构成的。

Aims and scope,editors,tables of contents,instructions for authors,manuscript submission form,madia information,reprint information,contact information,technical information,subscription rates,publication dates,other relevant sites

目标和范围，编辑，内容目录，投搞须知，论文提交形式，媒体信息，再版信息，联系方式

Evaluation Information does not include, however, information that is or becomes generally available to the public other than as a result of a disclosure by Buyer or its Representatives, was available to Buyer on a nonconfidential basis prior to its disclosure by Seller or its Representatives, becomes available to Buyer on a nonconfidential basis from a person, other than Seller or its Representatives, who is not known by Buyer to be otherwise bound by a confidentiality agreement with Seller or to be otherwise under an obligation to Seller not to transmit the information to Buyer, or was independently developed by Buyer without reference to the Evaluation Information.

评估信息不包括，然而，信息供给或变得一般公众除由于透露之外由买家或它的代表，供给买家根据一个没有争议的事物。依据在它的透露之前由卖家或它的代表，变得可利用对买家根据一个没有争议的事物。依据从人，除卖主之外或它的代表，由卖家不知道由一个机密协议否则一定以卖主或有义务否则对卖主不传送信息给买家，或由买家独立地开发了没有在评估信息的参考。

In view of the situation that existing search engines cannot follow up the change of webpage and their low precision in information retrieval, the dissertation suggests an idea of personalized information retrieval service, and establish a user model for personalized information retrieval based on user partialness keyword list on client server, which can supply personalized information retrieval service for user with the communications and collaboration of all modules of it.

本文针对利用现有的搜索引擎进行信息检索的过程中存在的查准率低和用户无法跟踪网页信息变化的缺点，提出面向用户的个性化信息检索服务理念，在客户端建立基于关键词表的用户个性化信息检索模型，通过用户个性化信息检索模型内部各功能模块之间的通信协作达到面向用户的个性化主动信息检索服务。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。