企业管理信息系统与P3、P3e/c数据交换的研究与实现

本文首先讨论P3、P3e/c项目管理软件与企业管理信息系统集成的必要性和重要性,然后详细地介绍了采用RA引擎(OLE对象)技术来实现P3软件与企业管理信息系统的数据交换,以及与P3e/c交互的原理。分析P3、P3e/c在数据组织上的差异,提出解决方案。最后以实例讨论和分析了这种方法在实际系统中的应用。     

The empirical analysis of the -bilateral optimized combinatorial auction model

This study proposes a new and highly efficient dynamic combinatorial auction mechanism—the N-bilateral optimized combinatorial auction (N-BOCA). N-BOCA is a flexible iterative combinatorial auction model that offers more optimized trading for multiple suppliers and purchasers in the supply chain than one-sided combinatorial auction. We design the N-BOCA model from the perspectives of market architecture, trading rules, and decision strategy for winner determination, the decision strategy for winner determination needs flexible optimization modeling capability. Thus rule-based reasoning was applied for reflecting the flexible decision strategies. We also show the viability of N-BOCA through Paired Samples T-test experimentation. It shows that N-BOCA yields higher purchase efficiency and effectiveness than the one-auctioneer to multi-bidders (1-to-N) combinatorial auction mechanism.     

第十届中国戏剧节新创剧目简论

第十届中国戏剧节上展演的新创剧目在题材上有向政治剧和底层生活剧集中的趋势。政治剧都以历史剧的形式出现,多表现凶险的政治强力和善良人性及人类基本正面价值之间的悲剧性冲突;底层生活剧则都在当前的时空中表现社会、经济、精神资源严重匮乏的下层人民的生活实况。剧作家对这两大题材的开掘和表现在思想上超越了以往的深度,在艺术上具有更强烈的情感冲击力。它们标志了新世纪以来戏剧创作基本的取材方向和艺术水平。     

"创造阶级"的创新空间

在经济全球化和知识化的今天,人力资源成为第一资源,城市可持续发展及竞争力的根本在于依靠人力资本特别是创造型人才进行创新."创造阶级"理论也随之产生.开发人力资源、积累人力资本、吸引"创造阶级",从而增强城市竞争力,推动城市持续发展.为此,在城市规划与建设中提高城市便利性、人居环境质量,建设适宜的制度环境,给人们提供制度上的创新空间,推动城市持续发展.     

多相感应电机任意非正弦气隙磁密的磁动势分析与应用

多相感应电机转矩密度的提高依赖于非正弦气隙磁密行波的合理构建,由于传统的电流相位、幅值控制策略无 法给出期望的非正弦磁密行波,因此文章研究了控制多相感应电机定子相电流中基波和谐波幅值、相位、频率的大小来 构建期望的气隙磁密波形的方法、首先基于单根载流导体产生的气隙磁动势波形,推导了任意相数、不对称、包含任意 高次谐波电流波形激励的具有典型绕组结构的多相感应电机的磁动势分布表达式。根据以上磁动势分析结论,多相电 机可通过变电流相序变极。针对气隙磁密行波逼近方波波形的案例,根据所提出的磁动势分析方法分析和预测了理想 空载励磁电流的波形。将预测波形和方波供电下的励磁电流波形进行了比较,从FFT分析结果来看,仍需微调各次谐波 电压相位,从而实现各次电流相位完全一致。     

资源禀赋、电商认知与家庭农场主电子商务采纳行为

基于河北、江西和云南3省893个家庭农场调研数据,研究了资源禀赋、电商认知、政府扶持对家庭农场主电子商务采纳行为的影响机理。结果表明:资源禀赋中的家庭农场主受教育程度、电商培训和农产品特色明显程度对其电子商务行为采纳及采纳程度有显著正向影响;年龄、注册品牌、绿色或有机认证、产品深加工对采纳程度有显著正向影响;组织化和电商认知对电子商务采纳行为有显著正向影响;政府扶持对电子商务行为采纳具有显著正向影响,且对资源禀赋、电商认知 电子商务行为采纳及采纳程度关系中有正向调节效应。在此基础上,提出培育农产品电商品牌,提升农场主电商运营能力,创新电商经营模式和提高家庭农场组织化程度等建议。     

Participatory shaping of community futures in e‐waste processing hubs: Complexity,conflict and stewarded convergence in a Palestinian context

This article describes an unconventional participatory development approach carried out in an informal e‐waste hub in South‐West Hebron, an area that has collected and processed the bulk of Israeli e‐waste for over a decade. Our approach contributes to the critique and recovery of community representation in participatory development and the search for ways to facilitate representative community engagement. Specifically, we describe our use of a novel Delphi‐like method that allowed us to facilitate a broadly endorsed development trajectory within a heterogeneous and conflicted community. We show how the results yielded by this approach diverged from those that were likely to emerge from more facile forms of participation in ways that are important for other similar e‐waste hubs internationally, which face a destructive status quo on the one hand, or the economically ruinous international policies that ban e‐waste trade from “developed” to “developing” countries on the other. Despite real tensions and cleavages within the affected communities, the process described facilitated a shift from deadlocked environmental versus livelihood positions towards building capacity and regulating existing informal e‐waste trades to preserve livelihoods dependent on these.     

Class participation as a pedagogical tool in social work education

Class participation is an essential part of the social work pedagogy. However, active student engagement in classes is inconsistent and varies based on factors such as social backgrounds, educational background, and individual characteristics. Instructors often evaluate participation based on frequency of verbal contributions. Evaluation criteria are often unarticulated or difficult to measure, presenting numerous challenges for instructors and students alike. A model of reflective self-assessment of participation by students, paired with timely instructor feedback is put forth in this paper to mitigate these concerns. The steps in this model include initial self-assessment, goal setting, midterm review, and a final review. The process of continuous self-evaluation and problem-solving is discussed as strategies that aid the process of class participation. Three instructor touch points are suggested: at the goal-setting stage, the midterm review, and the final grade. Throughout the paper, connections to social work practice and social work pedagogy are highlighted. This model has yet to be implemented in a social work school’s curriculum. Challenges in the implementation and resolution of those challenges are also presented. This model suggests ways to enhance opportunities for student engagement and integration into graduate programs, in addition to fostering valuable skills for future practice in the field.     

Ségrégation professionnelle selon la durée du travail en Europe

L'auteur évalue la ségrégation professionnelle selon la durée du travail dans quinze pays européens, à partir de données de l'Enquěte européenne sur les forces de travail. Il recherche les déterminants de cette ségrégation par une analyse de régression reposant sur trois groupes d'indicateurs (quantité d'emploi, qualité de l'emploi et institutions). De façon générale, la ségrégation observée est plus forte chez les hommes que chez les femmes, et chez les jeunes que chez les adultes. Elle est plutôt corrélée avec la quantité d'emploi chez les hommes, alors que des variables des trois groupes d'indicateurs interviennent chez les jeunes et les femmes adultes.     

Why does class matter? Policy attitudes,mechanisms, and the case of the Nordic countries

In most democracies, classes tend to vary with respect to an array of attitudes and behaviours, and differences are large within a number of European polities. What mechanisms lie behind these differences? Do they relate primarily to individuals’ material interests, as assumed by traditional class theories, or instead, to socialization and self-selection factors? This paper seeks to extend theory and research through an analysis of mechanisms behind class differences in policy attitudes. Our focus is on the Nordic countries, where class differences are extensive and well-documented in past scholarship. We take advantage of high-quality European Social Survey data for Denmark, Finland, Norway, and Sweden. Analyzing three policy arenas and the 9-category European Socio-economic Classification scheme (ESeC), we find evidence that class-related factors help to explain cleavages in attitudes. Comparisons with the more detailed, 103-category International Standard Classification of Occupation scheme (ISCO) suggest that these factors explain less “micro-class” occupational variation. Results shed new light on mechanisms behind class differences, and the empirical foundations of established class theories. These and other implications are discussed in the conclusion.