Expert group formation using facility location analysis

In this paper, we propose an optimization framework to retrieve an optimal group of experts to perform a multi-aspect task. While a diverse set of skills are needed to perform a multi-aspect task, the group of assigned experts should be able to collectively cover all these required skills. We consider three types of multi-aspect expert group formation problems and propose a unified framework to solve these problems accurately and efficiently. The first problem is concerned with finding the top k experts for a given task, while the required skills of the task are implicitly described. In the second problem, the required skills of the tasks are explicitly described using some keywords but each expert has a limited capacity to perform these tasks and therefore should be assigned to a limited number of them. Finally, the third problem is the combination of the first and the second problems. Our proposed optimization framework is based on the Facility Location Analysis which is a well known branch of the Operation Research. In our experiments, we compare the accuracy and efficiency of the proposed framework with the state-of-the-art approaches for the group formation problems. The experiment results show the effectiveness of our proposed methods in comparison with state-of-the-art approaches.     

时变条件下的危险品运输与应急救援双层规划研究

危险品运输因其发生事故的后果危害性大,因此对于如何选择一条既能保证运输安全又能满足运输需求的最优路径已经成为一项非常重要的研究内容。在总结前人研究的基础上,提出在时变条件下考虑应急救援的危险品运输路径双层规划模型,同时考虑运输时间限制与出发等待时间弹性以及运输网络中的应急救援能力。通过算法求解与应用算例,结果表明:双层规划更好地描述了企业和政府之间的博弈决策,而且将应急救援因素作为路径选择的重要依据有利于寻求更符合实际的最优路径。     

高考物理实验与高中物理教学的关系分析

物理是一门实验学科,在高中物理教学中,实验一直贯穿于物理教学的始终。随着近年来我国教育体系的不断改革,在新课标体系下,学校和老师越来越重视高中物理实验。物理实验不仅仅体现在平时的教学中,在高考物理中占据的分数比例也非常大。因此,学校应该加强高中物理实验教学,培养学生的实验意识,提高学生的实验能力水平,从而在高考中取得优异的成绩,为国家人才培养和高等学校录取人才提供强有力的保证。     

提升高分子本科生创新能力的实验体系改革初探

高分子材料科学与工程专业旨在培养高分子材料领域的高级工程技术人才,对学生的实践能力和创新能力都有很高的要求。本文针对武汉理工大学高分子专业大学生的特点及现有体系的问题,提出了几种高分子专业实验体系的改革措施,以期有效提升该专业本科生的创新能力,并辐射至整个工科院校。     

从创新实验中体会教书育人

科学态度不仅是一句口号,更需要在实际科研工作中不断强化。本科生参加创新实验得以与研究生导师近距离接触,在提早感受实验室氛围的同时,不仅可以培养他们的科研兴趣,锻炼他们的动手能力,丰富专业知识,提高沟通、交流的能力,更重要的是,在实验中他们学会克服自身的惰性,培养科研精神。这样,良好的工作态度以及专业的工作素养可以为他们步入社会参加工作带来有力保障。     

浅谈中职Visual Basic程序设计教学策略的优化

随着我国职业教育的发展,Visual Basic程序设计语言已经成为很多中职院校都开设的一门计算机课程。基于我国中等职业教育Visual Basic程序设计存在的诸多问题,笔者结合自身教学实践,分析了中职教育存在的薄弱环节,并进行实践和经验总结,对当前Visual Ba-sic程序设计语言的教学提出了一些可行性建议,探索了教学策略的优化途径,以期对中职教学有所帮助。     

NO2与NO气体制备演示一体化微型实验探究

实验室制取NO2、NO的反应,由于其毒性,实验装置的改良备受关注,笔者进行了进一步的改进,旨在减少试剂用量、减轻尾气毒害,人人有机会动手实践,这一点符合绿色化学的发展理念。     

简单零件编程与加工课程的教学改革

对原有的数控编程、数控编程实习、数控机床操作实训课程进行整合,开发出一门"教学做"一体化的"简单零件编程与加工"专业核心课程。主要从教学内容、教学方法与手段、考核评价方式等方面进行改革,并取得的良好的教学效果。     

初中生基于速度类运动处方体能素质干预实验研究

通过速度类项目50米跑课外教学实验,施以不同的教学方法,观察学生速度类体能素质经运动处方干预后的变情况,并运用方差分析对所得实验数据进行统计分析.结果显示：采用运动处方的方式干预初中生的速度类体能素质发展效果明显好于一般的教学方式.     

Neuro‐linguistic programming and altered states: encouraging preparation for learning in the classroom for students with special educational needs

In seeking to identify the processes associated with the immediate engagement of learning for students with mild special educational needs, this study examined the responses of an extraction group (n = 7) of 11‐ to 13‐year‐old students who participated in a number of lessons in which the opening episode involved the use of visualisation techniques and language associated with representational systems as identified within neuro‐linguistic programming (NLP). Students endeavoured to alter their negative state to a positive state via this intervention. The study, by Voldis Kudliskis of South Dartmoor Community College, was of a naturalistic research design, and the students' experiences were explored by means of formal interviews, semi‐structured interviews, questionnaires and observations. The implications for altering state through techniques associated with NLP are described and evaluated in terms of student comments. The case is made for the process of altering state as a strategy to empower students to engage with their learning from the outset of the lesson.