马歇尔计划赴美考察队与美国企业文化在英国的传播

马歇尔计划并不仅仅限于以促进自由贸易和恢复生产为核心的经济援助,它的主管机构经济合作署还十分重视以美国企业文化影响欧洲企业的经营方式。经济合作署资助大量英国生产考察队赴美国企业实地观察,这些专业考察队在对美国相关部门先进的生产和管理方式有了一定了解后,通过发布考察队报告、举办论坛等方式向本国传播美国的生产技术和管理模式。经济合作署实际上是希望通过这些考察队来展示美国的生产技术、管理经验和经营理念,并采用美国经验来解决西欧企业生产中面临的问题。可是,美国的生产方式和管理经验并不一定具有普世性,在推行上难以达到所期望的目标。     

谈化学教学中的科学探究

科学探究既是新课改理念实施中的一种全新的学习方法,也是新课改下化学学习的重要内容,要求学生通过科学探究活动来掌握科学知识,接受科学过程和科学方法的训练,并在二者的相互作用中理解化学、理解科学,从而提高自身的科学素养。笔者结合新课改理念,谈谈化学教学中的科学探究。     

FARMER: A novel approach to file access correlation mining and evaluation reference model

File semantic has proven effective in optimizing large scale distributed file system. As a consequence of the elaborate and rich I/O interfaces between upper layer applications and file systems, file system can provide useful and insightful information about semantic. Hence, file semantic mining has become an increasingly important practice in both engineering and research community. Unfortunately, it is a challenge to exploit file semantic knowledge because a variety of factors could affect this information exploration process. Even worse, the challenges are exacerbated due to the intricate interdependency between these factors, and make it difficult to fully exploit the potentially important correlation among various semantic knowledges. This article proposes a file access correlation miming and evaluation reference (FARMER) model, where file is treated as a multivariate vector space, and each item within the vector corresponds a separate factor of the given file. The selection of factor depends on the application, examples of factors are file path, creator and executing program. If one particular factor occurs in both files, its value is non-zero. It is clear that the extent of inter-file relationships can be measured based on the likeness of their factor values in the semantic vectors. Benefit from this model, FARMER represents files as structured vectors of identifiers, and basic vector operations can be leveraged to quantify file correlation between two file vectors. FARMER model leverages linear regression model to estimate the strength of the relationship between file correlation and a set of influencing factors so that the “bad knowledge” can be filtered out. To demonstrate the ability of new FARMER model, FARMER is incorporated into a real large-scale object-based storage system as a case study to dynamically infer file correlations. In addition FARMER-enabled optimize service for metadata prefetching algorithm and object data layout algorithm is implemented. Experimental results show that is FARMER-enabled prefetching algorithm is shown to reduce the metadata operations latency by approximately 30%–40% when compared to a state-of-the-art metadata prefetching algorithm and a commonly used replacement policy.     

Area-time associated test cost model for SoC and lower bound of test time

A novel test access mechanism (TAM) architecture with multi test-channel (TC) based on IEEE Standard 1500 is proposed instead of the traditional sub-TAM structure. The cost model of an area-time associated test and the corresponding lower bound of system-on-chip (SoC) test time are established based on this TAM architecture. The model provides a more reliable method to control the SoC scheduling and reduces the complexity in related algorithm research. The result based on the area time associated test cost model has been validated using the ITC’02 test benchmark.     

基于VB 6.0的数据库访问技术对比分析

对几种基于VB 6.0中数据库访问的技术进行对比,分析说明了各种访问技术的特点,介绍了它们访问数据库的方法。     

恐龙多米访问多巴星

恐龙多米一直盼着到多巴星去，多巴星是他遥远的故土。几千万年前，一颗小行星砸到了多米的老家多巴星球，并引起了惊天动地的大爆炸。滚滚的烟尘罩住了整个星球。     

基于ASP的WEB数据库安全初探

本文针对当前应用广泛的基于ASP的WEB数据库技术,讨论了WEB数据库的自身安全和ASP的访问问题,并提出了实现基于ASP的WEB数据库网站安全问题的解决策略。     

浅议高职校园网络安全策略

数字化大学已成为当前各校园信息化建设发展的主要目标;校园网络作为信息化建设的主要载体,校园网络安全已经成为当前各高职网络建设中不可忽视的首要问题;基于当前校园网络安全的现状及特点,浅议校园网络的安全策略。     

如何引导高中女生上好体育课

县城的高中生大部分来自农村,受环境条件的影响,体育基础比较差,而且部分学生厌学体育,在厌学体育的学生中又以女生居多.通过对我校278名女生进行调查访问和观察研究,我得出女生不愿上体育课的原因主要有:对体育课缺乏认识;体育课过于"模式化"、教法单一;体育课负荷大、技术难度大;学生有恐惧心理和自卑心理;学生身体素质差,等等.如何引导高中女生上好体育课,笔者认为: