Access数据库的三个教学案例设计

针对初学者在学习Access数据库中遇到的困难,设计了三个教学案例,介绍报表中计算控件的使用、if语句的语法格式和通配符“？”和“’,的使用．对于提高Access数据库的教学效果有一定的参考价值。     

On guiding the augmentation of an automated test suite via mutation analysis

Mutation testing has traditionally been used as a defect injection technique to assess the effectiveness of a test suite as represented by a “mutation score.” Recently, mutation testing tools have become more efficient, and industrial usage of mutation analysis is experiencing growth. Mutation analysis entails adding or modifying test cases until the test suite is sufficient to detect as many mutants as possible and the mutation score is satisfactory. The augmented test suite resulting from mutation analysis may reveal latent faults and provides a stronger test suite to detect future errors which might be injected. Software engineers often look for guidance on how to augment their test suite using information provided by line and/or branch coverage tools. As the use of mutation analysis grows, software engineers will want to know how the emerging technique compares with and/or complements coverage analysis for guiding the augmentation of an automated test suite. Additionally, software engineers can benefit from an enhanced understanding of efficient mutation analysis techniques. To address these needs for additional information about mutation analysis, we conducted an empirical study of the use of mutation analysis on two open source projects. Our results indicate that a focused effort on increasing mutation score leads to a corresponding increase in line and branch coverage to the point that line coverage, branch coverage and mutation score reach a maximum but leave some types of code structures uncovered. Mutation analysis guides the creation of additional “common programmer error” tests beyond those written to increase line and branch coverage. We also found that 74% of our chosen set of mutation operators is useful, on average, for producing new tests. The remaining 26% of mutation operators did not produce new test cases because their mutants were immediately detected by the initial test suite, indirectly detected by test suites we added to detect other mutants, or were not able to be detected by any test.

基于ASP的应用:对EXCEL数据进行分析

针对用Excel表格作统计分析报表时出现的弊端,本文利用ASP和数据库技术对Excel原始数据进行导入、分析,从而得到满足需求的报表。     

在大学英语写作中运用过程教学法的基本构思

英语教学正在向重视培养语言应用能力的方向发展,英语写作是体现英语应用能力的一个重要方面.过程教学是国外普遍采用的写作教学方法,它是沿着写作过程的三个阶段进行教学的.它不但能指导学生顺利通过四、六级写作考试,而且对考研、托福等考生了解英语写作的一般规律也有借鉴价值.     

利用数学“递推式”思维解决C语言教学循环问题

计算机语言随着科学技术的进步，发展迅速，语种繁多，但语言学习的三大基本结构（顺序、选择、循环）一直没有改变。其中，循环结构是最复杂最难讲解的知识点，也是学生初学时不容易理解的部分。本文利用数学教学中的递推公式思想，巧妙解决C语言中部分循环问题，帮助学生加深理解和快速掌握循环的要领。     

Assessing sustainable forest biomass potential and bioenergy implications for the northern Lake States region,USA

Forestlands in the United States have tremendous potential for providing feedstocks necessary to meet emerging renewable energy standards. The Lake States region is one area recognized for its high potential of supplying forest-derived biomass; however, the long-term availability of roundwood harvests and associated residues from this region has not been fully explored. Better distribution and temporal availability estimates are needed to formulate emerging state policies regarding renewable energy development. We used a novel predictive methodology to quantify sustainable biomass availability and likely harvest levels over a 100-year period in the Lake States region. USDA Forest Inventory and Analysis estimates of timberland were combined with published growth and yield models, and historic harvest data using the Forest Age Class Change Simulator (FACCS) to generate availability estimates. Monte-Carlo simulation was used to develop probability distributions of biomass harvests and to incorporate the uncertainty of future harvest levels. Our results indicate that 11.27–15.71 Mt y⁻¹ dry roundwood could be sustainably harvested from the Lake States. Assuming 65% collection rate, 1.87–2.62 Mt y⁻¹ residue could be removed, which if substituted for coal would generate 2.12–2.99 GW h of electricity on equivalent energy basis while reducing GHG (CO₂e) emission by 1.91–2.69 Mt annually. In addition to promoting energy security and reducing GHG emissions, forest residues for energy may create additional revenues and employment opportunities in a region historically dependent on forest-based industries.     

利用备查帐簿编报现金流量表

现金流量表是企业对外编报的三大报表之一,但现行可借鉴的编报方法（工作底稿法和Ｔ型帐户法）较复杂,编报人员不易掌握,为此设计了利用备查帐簿辅助编报现金流量表的方法,并且提出改进我院工商分院会计,理财专业会计模拟作业的设想。     

Project network-oriented materials management policy for complex projects: a Fuzzy Set Theoretic approach

This work devises a materials management policy integrated with project network characteristics of complex projects. It proposes a relative quantitative measure, overall criticality (OC), for prioritisation of items based on penalty incurred due to their non-availability. In complex projects, practicing managers find it difficult to measure OC of items because of the subjective factors and intractable nature of penalties involved. However, using their experience, they can linguistically identify the antecedents and relate them to consequent OC. This work adopts Fuzzy Set Theory to capture managerial tacit knowledge which provides them enough flexibility to provide information in real form. Computed OC values can be used for items prioritisation and as shortage cost coefficient in inventory models. The revised materials management policy was applied to a shipbuilding project. OC values were analysed to justify the importance of incorporating project network characteristics and potential cost savings were calculated.     

基于EDPN的类测试框架及测试用例生成技术的研究

针对基于状态的面向对象软件的类测试过程中存在的不可预测、不可达状态、状态组合“爆炸”和测试用例“爆炸”等问题,提出了基于EDPN模型的类测试、类的交互测试和类的层次测试框架,设计了相应的测试模型;提出了基于EDPN的有标记的唯一输入输出(UIO)测试用例的自动生成方法,生成状态转移路径序列,测试类的状态;提出了基于扩展的EDPN的状态组合的标记关联递推法,生成扩展的正交阵列表,测试类的交互;提出了基于扩展的EMDPN的协同路径(copaths)测试用例的生成方法,生成协同路径序列,测试类的层次。     

欧洲博洛尼亚进程与“澳大利亚高等教育毕业声明”——降低高校毕业生流动信息障碍

本文阐述澳大利亚高等教育在政策上对欧洲博洛尼亚进程,特别是对毕业证书附件政策的回应--构建并实施"澳大利亚高等教育毕业声明"."声明"旨在满足知识型劳动力的流动需求,推动学术和职业资质(文凭、学位、证书)认证的国际化与透明度.研究澳大利亚高等教育国际化的创新政策与理念,意在与世界学术同仁一起探讨博洛尼亚进程对亚太地区高等教育的影响.