浅谈对无线局域网的认识

本文分析了无线局域网和有线局域网的特性,重点讲述了无线局域网的网络应用,探讨了无线局域网的不足和采取的相应措施。     

无线局域网的安全防护

随着智能终端的飞速发展,无线局域网以其自身的优势,得到了广泛的发展。但无线局域网的安全问题也成为了研究的焦点。针对无线局域网存在的安全问题,研究了无线局域网的安全技术,给出了无线局域网的安全防护措施,以达到用户对无线局域网的安全需求。     

浅谈局域网络的安全威胁现状与对策

计算机局域网已越来越融入人们的工作生活,局域网的安全情况也越发受到人们的重视。本文介绍了目前计算机局域网所面临的种种安全挑战,并根据笔者在实际工作中的经验提出了一些对策。     

基于局域网内部文件交换的可靠多播技术分析

目前,各职业院校教学使用的计算机房都建立了局域网,但对于局域网内部的文件传输而言,如何保证文件传输可靠、快速是一个值得研究的课题。文章主要针对机房局域网的可靠多播技术进行了分析,具有一定的参考价值。     

无线局域网在高校中的应用

网络建设随着INTERNET的飞速发展,从传统的布线网络发展到了无线网络,作为无线网络之一的无线局域网WLAN(Wireless Local Area Network),满足了人们实现移动办公的梦想,为我们创造了一个丰富多彩的自由天空.无线网络已经得到了初步的应用,特别是在高校网络的建设中,更是应该把无线局域网的建设提到日程上来.但无线网络毕竟是近几年来的新生事物,需要学校管理层及使用者更全面地了解它,尝试阐述无线局域网在高校网络建设及使用中的优势、体系结构及在高校构建无线局域网的方法.无线局域网在大学数字化校园建设中必将起到举足轻重的作用.     

无线局域网在高校中的应用

网络建设随着INTERNET的飞速发展,从传统的布线网络发展到了无线网络,作为无线网络之一的无线局域网WLAN(Wireless Local Area Network),满足了人们实现移动办公的梦想,为我们创造了一个丰富多彩的自由天空。无线网络已经得到了初步的应用,特别是在高校网络的建设中,更是应该把无线局域网的建设提到日程上来。但无线网络毕竟是近几年来的新生事物,需要学校管理层及使用者更全面地了解它,尝试阐述无线局域网在高校网络建设及使用中的优势、体系结构及在高校构建无线局域网的方法。无线局域网在大学数字化校园建设中必将起到举足轻重的作用。     

浅谈无线局域网中的路由器配置方法

无线局域网发展到现在已相对完善,速度也越来越快.目前的主流产品不仅能达到普通有线以太网的速率,安全性也已经得到基本保障.但是,在实际使用过程中,无线局域网的设置,特别是路由器的配置,是一个重要的问题.笔者就无线局域网的路由配置总结几点经验:     

局域网常见故障分析和处理

局域网在使用过程中,会出现各种故障,小故障可能只是单机不能连网,大的则可能会使整个局域网瘫痪.常见的局域网故障可以分为三大类:网卡或网线故障、交换机等网络互连设备故障、病毒或系统故障.一般可用隔离法、排除法或替换法等检测故障.     

职业院校计算机专业局域网组建与维护课程案例教学研究与实践

随着职业院校计算机专业课程建设的进行，局域网组建与维护课程已经成为职业院校计算机专业课程体系中的核心专业课程。本文对如何在局域网组建与维护课程教学中运用案例教学进行了论述。     

基于手机无线局域网探针数据的区域居民出行研究

在智能设备普及的时代,通过无线局域网探针技术手段,使人流量信息的搜集成为可能。人流量信息数据对于大型商场、零售店及商业街的经营和管理有着举足轻重的作用。笔者通过手机无线局域网探针技术手段,收集了大型商场的人流量信息数据,并对其展开分析研究,提炼出了商场内居民出行在空间和时间维度的统计分析特征;并且从各个角度对手机无线局域网探针数据的应用做了一些展望,以期最大限度发挥数据的价值。     

Experimental Research As Practical Action: Stooge Detection And Bias*

A discussion of experimental research as practical action applies the ethnomethodological critique to research in experimental social psychology. While research on demand characteristics may meet some of the ethnomethodological criticisms, it may not provide a set of exemplars around which the practical activity of experimentation can be organized. “Stooge detection” is a practical problem often faced by experimenters. My data suggest that stooge detection may, in certain circumstances, be a member's strategy for dealing with a problematic experimental setting. This view has implications for notions of experimental “bias”.     

Theory and Research in Teaching. Arno A. Bellack,Editor. New York: Teachers College,Columbia University, 1963. 122 pp. $2.50 Softbound

This study compares the efficacy of experimental, competency-based methods of teaching the interpersonal skills of empathic communication, respect, and genuineness with traditional didactic methods. An experimental design using randomly-chosen experimental and control groups of first-year graduate students was employed. Experimental conditions involved communication laboratories consisting of didactic and experiential learning opportunities organized in a systematic and sequential fashion. The findings supported the hypothesis that the experimental groups would significantly outperform the control groups on the criterion variable. A second hypothesis, that the control groups would not achieve significant gains, was refuted.     

Program implementation and evaluation results: A reexamination of type III error in a field experiment

This paper reexamines the implementation results obtained from a true experiment in criminal justice. The original analyses found a significant difference in employment outcome between the control group and those experimental clients who received the highest level of treatment. The present analyses attempt to bracket true treatment effects by partitioning both experimental and control groups into treated and untreated subgroups, and by combining data from two independent sources. The original results do not obtain when implementation of the control treatment is also considered in the analysis. Corroborating earlier findings, a positive association was found between magnitude of experimental treatment implementation and employment, but it was unclear that the experimental program was responsible for this relationship. The limitations of the experimental design for disentangling effective components of treatment are discussed. The paper provides an example of the utility of secondary analysis for understanding evaluation results.     

Using experimental design to define boundary manikins

When evaluating human-machine interaction it is central to consider anthropometric diversity to ensure intended accommodation levels. A well-known method is the use of boundary cases where manikins with extreme but likely measurement combinations are derived by mathematical treatment of anthropometric data. The supposition by that method is that the use of these manikins will facilitate accommodation of the expected part of the total, less extreme, population. In literature sources there are differences in how many and in what way these manikins should be defined. A similar field to the boundary case method is the use of experimental design in where relationships between affecting factors of a process is studied by a systematic approach. This paper examines the possibilities to adopt methodology used in experimental design to define a group of manikins. Different experimental designs were adopted to be used together with a confidence region and its axes. The result from the study shows that it is possible to adapt the methodology of experimental design when creating groups of manikins. The size of these groups of manikins depends heavily on the number of key measurements but also on the type of chosen experimental design.     

Soziologie und Ökonomie: Der Beitrag experimenteller Wirtschaftsforschung zur Sozialtheorie*

Almost unnoticed by sociologists, experimental economics has expanded its research to many classical sociological topics such as the evolution and stability of social norms, social sanctions and social order, reciprocity, and pro-social behaviour. This article reports the main empirical findings and theories, their strengths and weaknesses, and explores how experimental economics has furthered social theory. It concludes with the suggestion that sociology should bring experimental methods back into the field and that economics should acknowledge that the research program is an interdisciplinary task analyzing the basic aspects of human behaviour.     

Selection of Film Clips and Development of a Video for the Investigation of Sexual Decision Making among Men Who Have Sex with Men

Experimental research on sexual decision making is limited, despite the public health importance of such work. We describe formative work conducted in advance of an experimental study designed to evaluate the effects of alcohol intoxication and sexual arousal on risky sexual decision making among men who have sex with men. In Study 1, we describe the procedures for selecting and validating erotic film clips (to be used for the experimental manipulation of arousal). In Study 2, we describe the tailoring of two interactive role-play videos to be used to measure risk perception and communication skills in an analog risky sex situation. Together, these studies illustrate a method for creating experimental stimuli to investigate sexual decision making in a laboratory setting. Research using this approach will support experimental research that affords a stronger basis for drawing causal inferences regarding sexual decision making.     

Facilitating Postdivorce Adjustment Among Women:

The purpose of the present study was to examine the effects of communication skills training on adjustment to divorce and separation among women. Divorcees in the experimental group (N = 13) received 15 hours of training in interpersonal communication skills, along with didactic information regarding various aspects of the postdivorce adjustment process. Divorcees in the control group (N = 15) received no treatment. Results indicated that the experimental group, relative to the control group, significantly increased in overall divorce adjustment and in empathy skills. Although the experimental group, relative to the control group, showed some increase in selfesteem, the results were not conclusive. No significant differences were found between the experimental group and the control group in either perceived social support or selfdisclosure skill. Discussion centered on the advantages of structured skills training as a strategy for intervention in the postdivorce adjustment process.     

The Evaluation of a Stress Management Program for Middle School Adolescents

A pretest posttest control group design was employed to determine the effectiveness of a ten-week stress management program for middle school adolescents. Thirty-six adolescents participated in the experimental groups and 18 served as controls. The experimental subjects, in contrast to controls, reported a significant increase in the use of cognitive control coping strategies, in the effectiveness of adaptive coping strategies, and in the ratio of the use of adaptive relative to maladaptive coping strategies. The adolescents in the experimental group reported a significantly lower degree of stress than those in the control group. A 67.5 percent reduction in muscle tension following the use of relaxation procedures was reported by the experimental group members. The program appears to have been successful in developing stress management skills in two major areas emphasized in the intervention, cognitive control coping strategies and relaxation methods.     

Experimental and pragmatic approaches to the incidence of adolescent suicide

Since the early 1960s, the incidence of adolescent suicide has been increasing at an alarming rate. In response, social science researchers working in both the experimental and pragmatic epistemological paradigms have been studying the processes involved in this phenomenon and developing suicide prevention and suicide response programs in schools. In this article we review general issues involved in the contrasting and, at times, conflicting approaches taken by experimental and pragmatic researchers to adolescent suicide. These issues are then illustrated in a case study in which experimental and pragmatic proponents worked together on an evaluation of a school-based suicide education program.     

ON THE NATURE OF RECIPROCAL MOTIVES

Data from 692 subjects in 11 experimental treatments provide a systematic exploration of the existence and nature of reciprocal behavior in two-person games. The experimental design discriminates between motivations of reciprocity and (nonreciprocal) other-regarding preferences. The existence of positive reciprocity is found to be dependent on the level of social distance but not the level of monetary payoff. The larger context in which a decision is made is found to have a significant effect on negative reciprocity. These findings on payoff levels, social distance, decision context, and reciprocity have implications for both theoretical modeling and experimental design. (JEL C70 , C91 , D63 , D64 )