基于分布式系统的隔离网闸体系结构研究

很多涉密网络必须和外网实现物理隔离,但是实际中很多应用程序又需要在这种情况下仍然能正常工作。因此研究如何在保证物理隔离的同时,提供高带宽,低延时的数据传输效率,是一个很有意义的研究内容。本文在国家信息安全标准下,基于GAP思想建立了一套基于分布式系统的隔离网闸方案。     

Teachers' peer support: difference between perception and practice

This paper is aimed at exploring teachers’ perceptions and practices of peer support in Bangladeshi primary schools. It also looks into the contrast between the perceptions and practices, and the underlying reasons behind such deviations. The study collects data from teachers who are undergoing a large-scale teacher development project called English in Action. The project provides face-to-face and distance learning support to the teachers, as well as promotes the idea of context-based learning through peer support in both primary and secondary schools in Bangladesh. This study adopted a mixed method approach. The quantitative part looks into teachers’ perceptions and practices in regards to peer support. A close-ended questionnaire was used to understand the extent teachers feel peer support is important and their actual engagement with colleagues for the support activities. Qualitative methods including observations, focus group discussions, and interviews are used to identify the activities that teachers do together with their colleagues in a school and the barriers to such activities. The results show that, teachers define peer support in a specific way and consider it as very important for their professional development. However, their engagement in such activities is restricted by several factors.     

Towards a process theory of learning: Feeling the beauty of the world

Alfred North Whitehead's theory of learning is best understood in the overall context of his process philosophy. The rhythmic cycles of growth forming the basis of human learning (romance, precision, and generalisation) are organically connected to the characteristics of life typifying all entities in the universe (self-enjoyment, creative activity, and aim).The kind of balanced education which best enhances growth and connectedness is one in which art and aesthetic appreciation in the broadest sense are dominant. By experiencing the beauty of the sunset, for example, children and adults have access to feelings that flow through them from the world and connect them to distant events taking place in space and time. These bodily feelings at the base of all experience provide concrete ways in which human beings can appreciate the intrinsic value of the world around them.By way of contrast, the methods of 17th century science replace our concrete experience of the sunset with abstract categories that are used to measure the phenomena in question and deny the importance of that experience in understanding the world. Schools' and universities' emphasis upon this methodology produces an imbalanced education with minds in a groove.A renewal of balance in education helps us to understand the false dichotomy between child-centered and and curriculum-centered education. Education for Whitehead must pay attention to both. Moreover, he understands that the academic freedom enjoyed by bands of imaginative scholars in universities is not an article of commerce to be sold to the highest corporate bidder but something to be valued for its intrinsic worth.     

一项关于非英语专业学生对英语作文互评看法的调查

本文对本校大一非英语专业的学生进行了为期一学期的作文互评实验,而后对收集到的各类数据进行分析,得出结论:在大学生中进行作文互评,需要在提高学生的英语水平之后才能进行,否则收效甚微。     

电视剧艺术生产主体：在“孤立”到“集体”的路上

为了创作出独刨性艺术作品,艺术家必须获得超越视角以洞察世界,久而久之。渐渐形成某种“孤立”的境界。中国电视剧艺术生产主体是由制片人、编剧、导演、演员等艺术家按照一定形式结构的集体。如此,电视剧艺术家被抛掷在一条“孤立”到“集体”的路上。在不同的体制和机制下,曾形成“编剧中心制”、“导演中心制”、“制片人中心制”、“明星中心制”等等组织形式,无论以谁为中心,其实质无非要确立一个“孤立”的中心。其实,艺术生产的“孤立”与“集体”并不矛盾,在“孤立”到“集体”的路上,个体应既是“孤立”的,又是“集体”的,“孤立”中有“碰撞”,“碰撞”后再“孤立”。形成一种多元结构的“集体主体性”。     

SIS系统安全防护设计与实现

本文阐述了SIS系统安全系统区域的划分,根据电力系统安全目标和具体要求对SIS系统的安全防护进行了设计,详细介绍了安全防护设计方案及其代码实现。     

A Game Theoretic Approach to Peer Review of Grant Proposals

This paper studies the grant peer review process employed by the Turkish regional development agencies, which is adapted from a review procedure of the Education, Audiovisual and Culture Executive Agency of the European Union. To model this process, we consider a Bayesian strategic-form game played by three reviewers who observe both a common and a private score signal about an evaluated project and assign their scores to minimize the sum of their disutilities from the false acceptance and false rejection of the project. We numerically compute the Bayesian Nash equilibria of this game and conduct several comparative statics exercises, after calibrating the model parameters accordingly. We also introduce two simpler review processes and compare their performances to that of the calibrated process in terms of outcome statistics, involving pass and fail rates of the evaluated projects, and manipulation statistics, involving the reviewers’ manipulation rate and size of scores.     

松材线虫分离及不同真菌对松材线虫繁殖的影响

主要对松材线虫的取样分离进行探索,并初步研究了以真菌作为食料培养松材线虫。结果表明:取样部位对分离效果有影响,蛀孔及蛹室周围分离到的线虫量明显比枝条及树干其他部位多;不同真菌培养松材线虫效果有差异,主要采用了灰葡萄孢、黄瓜镰刀菌和香蕉镰刀菌3种真菌,通过设计不同影响因素比较培养效果,发现灰葡萄孢培养效果较为稳定且最佳,其次是黄瓜镰刀菌。因此,灰葡萄孢和黄瓜镰刀菌可选用于培养松材线虫。     

图书情报学期刊的分层结构：基于同行评议的实证研究

同行评议是保证科研健康发展的一种重要机制,学术评价在本质上离不开同行的判断.本文通过问卷法,采用同行评议的方式调查学术共同体对18种CSSCI图书情报学来源期刊的感知和认同,使用聚类分析展示期刊在"类"的层次上的差异.研究发现:同行将18种期刊明显地分为4个层级;<中文核心期刊要目总览>和CSSCI来源期刊均只能部分地反映同行的评议结果;CSSCI来源期刊的评价结果与同行评议结果一致性略高于<中文核心期刊要目总览>.