一种并行工程约束分解方法

在并行工程产品开发过程中,往往按照问题的结构特点将较大规模的问题分解成一些子问题,并希望通过求解子问题来获得原问题的解。实际中,分解得到的子问题之间往往不是完全独立的,一般的简单分解方法只能有限地降低求解难度和简化问题规模。如何进一步分解各个子问题间的关系,使各个子问题的设计结果不但满足原问题的总体要求而且还能由此获得优化的总体设计结果是一个重要问题。该文给出了分解的意义,提出了基于约束的优化分解方法。     

陕西省兵工企业管理岗位人岗匹配研究

企业人力资源管理工作的核心就是人岗匹配.文中针对兵工企业行业特征,对员工与岗位进行保密与否区分.在保密管理者可匹配任意管理岗位,而普通管理者只能匹配普通管理岗位的假设下,以管理者的岗位满意度和企业效益最大为目标,建立双目标人岗匹配模型,并用遗传算法分析与求解.尝试探讨兵工企业管理岗位人岗匹配的途径.     

Profiling the non-users: Examination of life-position indicators,sensation seeking,shyness, and loneliness among users and non-users of social network sites

The aim of the current study is to explore if there are differences between users and non-users of social network sites in terms of their sensation seeking, life-position indicators, shyness, and loneliness. Using data from a survey of adults 19–76 years old, results revealed that compared to an average Facebook user, a non-user is significantly older and scores higher on shyness and loneliness, is less socially active, and less prone to sensation seeking activities. Facebook is not a substitute channel of communication for those who are shy and lonely and lack face-to-face interactions. This study extends our knowledge of digital divide, uses and gratifications theory, and social enhancement hypothesis.     

Measuring website quality: asymmetric effect of user satisfaction

Website quality measurement tools have been largely static and have struggled to determine relevant attributes of user satisfaction. This study compares and contrasts attributes of user satisfaction based on usability guidelines seeking to identify practical easy-to-administer measurement tools. The website users assessed business school homepages according to six criteria and fulfilled a randomly assigned yet typical task. After completing the task, respondents assessed the same six website quality/satisfaction criteria again. The consumer–product relationship seems similar to the link between a user and a website. User satisfaction, just like consumer satisfaction, is asymmetric and non-linear. Content and navigation have been identified as key ingredients when users judged website quality, alerting web designers and website practitioners to focus more closely on those attributes. Similar lessons can be drawn for marketing professionals, who typically supervise or determine the content, structure and other website facets.     

How to take into account general and contextual knowledge for interactive aiding design: Towards the coupling of CSP and CBR approaches

The goal of this paper is to show how it is possible to support design decisions with two different tools relying on two kinds of knowledge: case-based reasoning operating with contextual knowledge embodied in past cases and constraint filtering that operates with general knowledge formalized using constraints. Our goals are, firstly to make an overview of existing works that analyses the various ways to associate these two kinds of aiding tools essentially in a sequential way. Secondly, we propose an approach that allows us to use them simultaneously in order to assist design decisions with these two kinds of knowledge. The paper is organized as follows. In the first section, we define the goal of the paper and recall the background of case-based reasoning and constraint filtering. In the second section, the industrial problem which led us to consider these two kinds of knowledge is presented. In the third section, an overview of the various possibilities of using these two aiding decision tools in a sequential way is drawn up. In the fourth section, we propose an approach that allows us to use both aiding decision tools in a simultaneous and iterative way according to the availability of knowledge. An example dealing with helicopter maintenance illustrates our proposals.     

汽车4S店顾客销售满意度评价指标体系研究

顾客销售满意度对提升汽车4S店竞争力具有重要的影响,因此有必要建立一个评价指标体系对汽车4S店顾客销售满意度进行客观的调查与评价。在广泛调研和深入分析的基础上,利用层次分析法构建一个科学合理的汽车4S店顾客销售满意度评价指标体系,并用专家赋权法和顾客赋权法确定各层次评价指标的权重。     

高校食堂服务满意度及其提升研究——以常州大学为例

高校食堂在高校日常工作中起到基础保障作用。伴随高校食堂社会化改革与食堂就餐人员期望的提高,不断提高食堂服务满意度显得尤为重要。采用访谈法与问卷调查法,构建出食堂服务满意度测评工具,并采用随机方式对常州大学食堂就餐人员施测,发现研究对象食堂总体服务满意度为3．16,略高于评价尺度的中间值。采用四分法研究出高校食堂服务提升的关键项目与对策,认为有待改善区项目是其关注重点内容,并主张高校食堂服务满意度调查的动态化与常规化。     

水信息学与水利信息化的协同发展模式分析

从提升水利信息开发应用水平的视角,简要论述水信息学与水利信息化发展的相互关系,并以水信息满意度测度、水信息组织等理论与方法及应用为例,阐述水信息学与水利信息化协同发展的模式与主要环节,为推进水信息学研究和水利信息化的共同发展提供基本参考模型.     

Work organisation constructs and ergonomic outcomes among European forest machine operators

The aims of the study were to: 1) create work organisation constructs for forest machine operators; 2) examine relationships between these work organisation constructs and different ergonomic outcomes. The study was carried out among forest machine operators in six European countries and was based on a questionnaire survey (n = 358). Exploratory factor analysis (EFA) was used in the formation of the construct measures of work organisation. The EFA resulted in a five-factor structure. The factors were named ‘job control’, ‘variation’, ‘job rotation’, ‘breaks’ and ‘rate of work’. Three multiple regression analyses were carried out separately for the dependent variables job satisfaction, musculoskeletal symptoms and headache/sleeping problems. All regression analyses resulted in significant overall models. The highest explained variance among the dependent variables was found for job satisfaction (R = 0.51, i.e. ‘large’ effect size). The unique contribution of the work organisation constructs varied in the models, but ‘job rotation’ contributed significantly in all regression models. The results may be used as a source for ergonomic improvements to work organisation. The present study was performed as part of the EU project ‘ErgoWood’, which resulted in a European handbook for mechanised forest operations (Gellerstedt et al. 2005 Gellerstedt S. Lidén E. Bohlin F Health and performance in mechanised forest operations The Swedish University of Agricultural Sciences, Department of Forest Products and Markets Uppsala 2005  [Google Scholar]). The results delivered part of the evidence base for a toolbox in this handbook regarding changes in work organisation to improve health and performance.     

青龙瀑布景区游客满意度实证研究

随着旅游业竞争的日趋激烈,旅游景点如何在竞争中脱颖而出,对顾客满意度影响因素分析和研究至关重要。文章以万州青龙大瀑布为例,通过对影响万州青龙大瀑布顾客满意度因素的问卷调查,将影响满意度的19个变量因素运用SPSS软件进行整理分析,运用因子分析法将19个变量归为四大公共因子,分别是旅游服务、旅游保障、景区宣传、景区管理四大类,并对其进行信度检测,随后构建了顾客满意度综合评价模型,最后对如何提高顾客满意度提出对策建议,以促进旅游景点服务质量的有效提高。