Computer integrated manufacturing: a complex information system

To be successful in today's competitive global environment, manufacturers must be able to respond quickly to changes in the manufacturing environment. Automation technology makes it possible for manufacturers to have this essential capability. A conceptualized information system that integrates the programmable design of a product and its manufacture with both planning activities and the manufacturing process is described. The information system integrates the programmable automation technologies used in computer integrated manufacturing with engineering and business databases. The computer integrated manufacturing concept is expended to the concept of a computer integrated economy. The technological difficulties that arise when implementing a computer integrated economy are identified.     

On choosing between fixed and random block effects in some no-interaction models

The purpose of this article is to strengthen the understanding of the relationship between a fixed-blocks and random-blocks analysis in models that do not include interactions between treatments and blocks. Treating the block effects as random has been recommended in the literature for balanced incomplete block designs (BIBD) because it results in smaller variances of treatment contrasts. This reduction in variance is large if the block-to-block variation relative to the total variation is small. However, this analysis is also more complicated because it results in a subjective interpretation of results if the block variance component is non-positive. The probability of a non-positive variance component is large precisely in those situations where a random-blocks analysis is useful – that is, when the block-to-block variation, relative to the total variation, is small. In contrast, the analysis in which the block effects are fixed is computationally simpler and less subjective. The loss in power for some BIBD with a fixed effects analysis is trivial. In such cases, we recommend treating the block effects as fixed. For response surface experiments designed in blocks, however, an opposite recommendation is made. When block effects are fixed, the variance of the estimated response surface is not uniquely estimated, and in practice this variance is obtained by ignoring the block effect. It is argued that a more reasonable approach is to treat the block effects to be random than to ignore it.     

加强实验网络环境建设 提供畅顺上机环境

本文从本校计算机实验教学环境的实际情况出发,提出了如何加强实验室网络建设以确保学生有一个顺畅上机环境的一些做法。     

Spare Reliability for Capacitated Computer Networks Under Tolerable Error Rate and Latency Considerations

Error rate and transmission time are both critical factors in a computer system. In addition to guarantee the robustness of the computer system under both tolerable error rate and latency, enhancing the system reliability by a routing scheme, named spare reliability, is also a critical task. Virtually, each branch possesses multiple possible capacities. Such a network is termed a capacitated computer network (CCN). Hence, this article develops an efficient algorithm to derive the spare reliability of a CCN, where the spare reliability is the probability that data can be sent through multiple minimal paths considering routing scheme.     

Experimental Evidence Against the Paradigm of Mortality Risk Aversion

This article deals with the question of how societal impacts of fatal accidents can be integrated into the management of natural or man‐made hazards. Today, many governmental agencies give additional weight to the number of potential fatalities in their risk assessments to reflect society's aversion to large accidents. Although mortality risk aversion has been proposed in numerous risk management guidelines, there has been no evidence that lay people want public decisionmakers to overweight infrequent accidents of large societal consequences against more frequent ones of smaller societal consequences. Furthermore, it is not known whether public decisionmakers actually do such overweighting when they decide upon the mitigation of natural or technical hazards. In this article, we report on two experimental tasks that required participants to evaluate negative prospects involving 1–100 potential fatalities. Our results show that neither lay people nor hazard experts exhibit risk‐averse behavior in decisions on mortality risks.     

KinCareTech: Interactive,Internet-Based Software to Support Kinship Caregivers

Kinship care has advantages over traditional foster care, but kinship caregivers have fewer resources and receive less support or training. Technology may be one way to evaluate needs and provide support. KinCareTech is a collaboratively developed, single-session Internet-based program designed to promote early reading and/or parenting skills through an interactive, caregiver-focused brief intervention. KinCareTech was used by a group of 10 kinship caregivers who then provided quantitative and qualitative feedback regarding the acceptability and helpfulness of the software. Feedback from these kinship caregivers suggested that they saw the software as easy to use, helpful, and relevant to their concerns.     

Could you help me,please? Intersectional field experiments on everyday discrimination in clothing stores

Although we live in a society that pictures itself as antiracial and gender equal, research has shown that subtle forms of discrimination persist and affect the everyday life of ethnic minorities and women. This study investigates everyday discrimination while shopping in clothing stores of different price ranges from an intersectional perspective looking at ethnic and gender discrimination. To measure discrimination, we performed situation tests among 301 salesclerks. Results show that customers from Maghrebi descent receive unfavourable treatment in comparison with their Belgian counterparts when they ask for their clothing size. Furthermore, they are greeted or approached less often and are more surveilled and followed by salesclerks. Gender follows a specific pattern. Men are significantly more greeted and approached than women within both Maghrebi and Belgian groups. Moreover, men are more stared at and followed by the shop assistant, but this is only significant for the Maghrebi group. There is no difference in receiving help between men and women within both groups. In general, the intensity and form of discrimination tend to be subtler and lower in high-end than low-end stores.     

How to test hypotheses if you must

Drug development is not the only industrial‐scientific enterprise subject to government regulations. In some fields of ecology and environmental sciences, the application of statistical methods is also regulated by ordinance. Over the past 20years, ecologists and environmental scientists have argued against an unthinking application of null hypothesis significance tests. More recently, Canadian ecologists have suggested a new approach to significance testing, taking account of the costs of both type I and type II errors. In this paper, we investigate the implications of this for testing in drug development and demonstrate that its adoption leads directly to the likelihood principle and Bayesian approaches. Copyright © 2015 John Wiley & Sons, Ltd.     

词汇丰富性测量方法及计算机程序开发：回顾与展望

词汇丰富性最常用的测量指标是词汇多样性和词汇复杂度,对词汇丰富性测量方法的研究主要沿这两个方向进行。通过对词汇多样性测量方法和词汇丰富性测量方法及其计算机程序开发进行回顾,分析以往测量方法的不足之处,并对未来研究提出展望。     

知识可视化在计算机教学中的应用

在现代教学活动中,知识可视化的运用得到越来越多的重视。在分析知识可视化相关概念的基础上,结合日常教学活动中的实例,提出知识可视化应用于计算机教学中的具体策略。