The reality of living with AD/HD: children's concern about educational and medical support

A diagnosis of AD/HD may tell us that the child has the core characteristics of inattentiveness, impulsivity and or hyperactivity, but it fails to convey the extent to which the social context of the child's environment manipulates these characteristics. This article reports on how children with a diagnosis of AD/HD view the impact their social environment has on their behaviour; providing us with insight into how educational and medical intervention strategies are failing to achieve their potential. The findings suggest that if children with AD/HD and their families are to benefit from educational and medical intervention then stakeholders need to work together to provide coordinated and consistent support.     

在线教师专业发展新理路：英国“学习设计支持环境项目”的探索与启示*

在线合作与反思成为教师专业发展的重要途径,具有显著的生态性效应、经济性和可持续性优势。英国伦敦大学教育学院承担的学习设计支持环境项目是对在线教师专业发展的一次成功探索,取得了良好的社会效益。作者概括了该项目的研究背景,整理了其探索内容和路径,分析了其理念以及对我国在线教师专业发展研究和实践的意义和启示。     

关于定理凡是一次方程其图形必为平面的证明

本文给出了定理凡是一次方程其图形必为平面的四种证法，从而使此定理的证明更简便可行。     

高校信息化教学环境的建设与探索——以西北工业大学为例

信息化教学环境是高校数字校园的重要组成部分。文章结合西北工业大学的建设实践,阐述了信息化教学环境的建设思路和方案;重点分析了教学活动支撑、资源制作与管理、网络学习支持和实时教学评估四个平台的系统组成;介绍了学校建设情况和实践效果;最后提出了运行管理中应注意的几个问题。     

A study on the effects of education welfare action zone policy in Korea

This study was designed to analyze the effects of the support programs provided in education welfare action zones. Education welfare action zone policy came into effect by government from 2003 to guarantee actual educational opportunity to disadvantaged children in urban areas by providing educational, cultural, and welfare service. Education welfare action zones were selected in low-income group area in the metropolis. In this regard, both quantitative and qualitative analytical methods were used to ascertain the effects of the program. The qualitative analysis included a preliminary examination of conditions prior to the actual commencement of the program, which was then followed by an investigation of specific schools used, as case studies in order to identify the changes that had taken place during the program’s implementation process, and the program’s effect. Meanwhile, a quantitative analysis was employed to verify the actual changes that took place in several different aspects, changes that were revealed by the case studies.     

一类广义隐拟向量变分不等式解的存在性问题

本文研究了Hausdorff空间中一类广义隐拟向量变分不等式问题（GIVQ1）,利用不动点定理得到了解的存在性定理,给出了（GIVQI）若干推论．     

基于RSViewSE的港口粮流系统操作员站的设计

文章以某粮食港口为例,根据该项目的实际情况,介绍了该粮食港口的工艺流程并应用组态软件RSViewSE对该港口粮流系统操作员站进行了设计。人机界面简洁友好,操作使用方便,体现了RSView SE在实际应用中的灵活性以及卓越特性。     

运用向量构造辅助函数证明拉格朗日中值定理

文章从拉格朗日中值定理的几何意义出发,通过几何直观,利用向量运算构造适合罗尔中值定理条件的辅助函数,应用罗尔中值定理得到了拉格朗日中值定理的简捷证明。     

An efficient page ranking approach based on vector norms using sNorm(p) algorithm

In the whole world, the internet is exercised by millions of people every day for information retrieval. Even for a small to smaller task like fixing a fan, to cook food or even to iron clothes persons opt to search the web. To fulfill the information needs of people, there are billions of web pages, each having a different degree of relevance to the topic of interest (TOI), scattered throughout the web but this huge size makes manual information retrieval impossible. The page ranking algorithm is an integral part of search engines as it arranges web pages associated with a queried TOI in order of their relevance level. It, therefore, plays an important role in regulating the search quality and user experience for information retrieval. PageRank, HITS, and SALSA are well-known page ranking algorithm based on link structure analysis of a seed set, but ranking given by them has not yet been efficient. In this paper, we propose a variant of SALSA to give sNorm(p) for the efficient ranking of web pages. Our approach relies on a p-Norm from Vector Norm family in a novel way for the ranking of web pages as Vector Norms can reduce the impact of low authority weight in hub weight calculation in an efficient way. Our study, then compares the rankings given by PageRank, HITS, SALSA, and sNorm(p) to the same pages in the same query. The effectiveness of the proposed approach over state of the art methods has been shown using performance measurement technique, Mean Reciprocal Rank (MRR), Precision, Mean Average Precision (MAP), Discounted Cumulative Gain (DCG) and Normalized DCG (NDCG). The experimentation is performed on a dataset acquired after pre-processing of the results collected from initial few pages retrieved for a query by the Google search engine. Based on the type and amount of in-hand domain expertise 30 queries are designed. The extensive evaluation and result analysis are performed using MRR, [email protected], MAP, DCG, and NDCG as the performance measuring statistical metrics. Furthermore, results are statistically verified using a significance test. Findings show that our approach outperforms state of the art methods by attaining 0.8666 as MRR value, 0.7957 as MAP value. Thus contributing to the improvement in the ranking of web pages more efficiently as compared to its counterparts.     

高性能电梯用无齿轮低速永磁同步电机控制系统的研究

本文根据低速永磁同步电动机的数学模型及矢量控制方法,在MATLAB/SIMULINK环境中对无齿轮电梯曳引传动系统进行了建模和仿真。仿真的结果表明所建立的模型是正确的,控制方法是可行的,为该电机控制系统的硬件参数设计提供了良好的理论依据。对一台样机进行了实验,实验结果表明其具有良好的低速平稳性,符合无齿轮电梯曳引系统对电机的要求。