Big knickers: A brief history of the world in 10 1/2 minutes

From the notion that our ideas of space are defined by their margins, this paper explores some of the social, symbolic and cultural means commonly used in particular contexts to determine both the definition of these perimeters and the various competing social structures implicit in their maintenance and function, or otherwise. In addition to first-hand accounts and ethnographies, the work draws on sources ranging from literature and journalism to architecture and social anthropology, all presented in terms of the author's long established, and much published, approach to SCOS events and the broader discontinuities of life in general. So, for example, the title of his proposed piece contains an oblique yet knowing reference to theories of relativity in that no matter how light the text may be, or lacking in gravity, it cannot easily be described within the space of ten and a half minutes.     

The Complete Gradient Clustering Algorithm: properties in practical applications

The aim of this paper is to present a Complete Gradient Clustering Algorithm, its applicational aspects and properties, as well as to illustrate them with specific practical problems from the subject of bioinformatics (the categorization of grains for seed production), management (the design of a marketing support strategy for a mobile phone operator) and engineering (the synthesis of a fuzzy controller). The main property of the Complete Gradient Clustering Algorithm is that it does not require strict assumptions regarding the desired number of clusters, which allows to better suit its obtained number to a real data structure. In the basic version it is possible to provide a complete set of procedures for defining the values of all functions and parameters relying on the optimization criterions. It is also possible to point out parameters, the potential change which implies influence on the size of the number of clusters (while still not giving an exact number) and the proportion between their numbers in dense and sparse areas of data elements. Moreover, the Complete Gradient Clustering Algorithm can be used to identify and possibly eliminate atypical elements (outliers). These properties proved to be very useful in the presented applications and may also be functional in many other practical problems.     

从黄庄路口看北京交通

文章主要通过在一周不同三天中不同代表时段观察一个路口———北京市城区黄庄路口,收集了公车、轿车和自行车的流量数据,并从这个路口所收集到的交通数据来分析这三种主要交通工具的出行规律,并由此讨论了整个北京市的交通情况,最后提出一些改善目前北京市交通状况的建议。     

Teacher＇s Flexible Roles in Class——Improve the Extensive Reading Teaching in Normal College

This paper aims to give some suggestions to improve the extensive reading teaching in normal college. The students are the center of the class. The class should emphasize communication. A teacher is a instructor, but also is a controller, a prompter,a participant and a resource.     

中空吹瓶机多级控制系统及通讯程序设计与实现

用４８６微机作上位机、可编程控制器（ＰｒｏｇｒａｍｍａｂｌｅＣｏｎｔｒｏｌｅｒ，以下简称ＰＣ）作下位机建立两级控制系统，并通过ＲＳ—２３２Ｃ异步串行通讯接口连接上下位机，实现了挤出过程逻辑程控和型坯形状、壁厚控制以及中空塑料容器吹胀成型控制；介绍了中空吹塑成型的基本原理、控制系统构成、间隙式型坯壁厚控制器结构，并给出了上下位机串行通讯程序流程；对软硬件设计、调试和系统可扩展性进行了讨论．     

习惯路径算法与EMME/2的连接

本文提出了一种有效的交通流量的经验分配方法——习惯路径算法。该算法可以考虑规划的情况,并且可以同EMME/2进行数据通讯。     

Nplot控件在远程数据监测系统中的应用

针对远程数据监测系统中历史曲线显示的需要，介绍了基于Web的远程监测系统中历史曲线的显示机制，通过Nplot控件实现了多条历史曲线的显示。主要介绍了数据库服务器和显示控件两部分，开发出的曲线显示控件（Nplot）可以嵌入到任何Web页面中，通过系统的良好运行情况，证明本系统是成熟可靠的。     

磁盘阵列RAID可靠性分析

介绍了磁盘阵列的基本概念和常用的磁盘阵列种类,分析了RAID0、RAID3和RAID10三种磁盘阵列的可靠性值,同时与实验数据进行了比较。结果表明,磁盘阵列的可靠性值基于标准模型在一定程度上可以进行量化,能进行科学的计算,得出RAID10比相应其他的RAID的容量更大,可靠性更佳。该文的可靠性分析对磁盘阵列的进一步研究和生产能起到现实的指导作用。     

交通事故引发工伤案件相关法律问题的思考

通过对现有法律规定的分析,交通事故引发工伤案件中,交通事故赔偿和工伤保险待遇赔偿应分开单独进行;单位除了要协助职工解决好工伤待遇赔偿的问题外,要承担处理职工工伤其他善后事宜的责任。     

Pilot power optimization and coverage control in WCDMA mobile networks

In mobile networks using wideband code division multiple access (WCDMA), common pilot channel (CPICH) signals are used by mobile terminals for channel quality estimation, cell selection, and handover. The strength of the CPICH signal determines the coverage area of the cell, impacts the network capacity, and thereby the quality of service, and is therefore a crucial parameter in network planning and optimization. Pilot power is the most important parameter that allows us to control the strength of the CPICH signal. The more power is spent for pilot signals, the better coverage is obtained. On the other hand, a higher value of the pilot power level in a cell means higher pilot pollution in the network and less power available to serve user traffic in the cell. In this paper, we consider the problem of minimizing the total amount of pilot power subject to a coverage constraint. Our modeling and solution approaches are based on mathematical programming techniques. We present a basic model for pilot power optimization subject to a full coverage constraint as well as its extended version which allows us to study various coverage levels and to consider user traffic distribution over the network. We also propose an efficient algorithm that gives near-optimal solutions to the problem within a reasonable amount of time. We report our numerical experiments for three WCDMA networks of various sizes based on realistic planning scenarios and examine the effect of different levels of the required coverage degree on the total amount of pilot power.