3自由度并联机器人的研究现状和应用前景

3自由度并联机器人具有结构相对简单、高刚度、低惯性力、大载荷和高速能力的特点,在工业生产及其他领域有着广阔的应用前景,引起了越来越多的学者的广泛兴趣。     

上市公司股权集中度影响因素实证分析

本文以上市公司数据为样本,采用主成分法、逐步回归、方差分析等多种分析方法对我国上市公司股权集中度影响因素进行了实证分析。结果表明,上市公司股权集中度的主要影响因素为持股主体、行业分布和规模,在此基础上还对我国上市公司的治理提出了建议。     

论我国会计科学研究方法的专门研究

会计学是一门具有自身专属研究对象与研究内容的科学,它是社会科学体系中管理科学的一个重要组成部分,其理论的发展与创新离不开科学的研究方法,故会计科学研究方法也应作为会计科学理论体系中的一个专门问题进行研究。本文以对我国会计科学研究方法研究现状的评析为基础,提出会计科学研究方法研究成果的运用应当以推动其学术规范建设作为重点。     

中期财务报告准则的比较研究

为提高上市公司会计信息质量，更好地保护投资者利益，2001年11月，财政部发布了《企业会计准则——中期财务报告》。鉴于美国是实行中期报告制度最早的国家，其制度也相对完善，本文拟将我国中期财务报准则同美国的相关准则及国际会计准则IAS34作粗浅的比较分析。通过比较分析，借鉴国外准则之长处，有利于推动我国中期报告理论和实务的发展。     

Action Research is Similar to Design Science

In management information systems (MIS) action research is long considered as promising but low-level research approach. It has an utmost relevance because action researchers are working with practitioners to solve the important practical problem. Design science outlined some years ago is just winning a wider audience. Action research was traditionally classified into qualitative research methods. But it seems to be the “wrong” home of action research. We shall show that after comparison of the seven aspects: concrete results of the study, knowledge produced, activities, the intent and the nature of a study, the division of labor in a study and generation, use and test of knowledge, the concordance between the characteristics of action research on the one hand and of design science on the other hand is very good. Hence, action research and design science should next be considered as similar research approaches, and this is a turning point in the history of both action research and design science.     

管理创新的"力场"分析

管理创新是在各种力的交互作用下产生的一种不规则性活动,只有当管理创新的动力大于阻力并取得支配地位时,管理创新行为才可能发生.管理创新的动力主要来源于需求拉力、竞争压力、利益内驱力、科技推力及政策激励力五个方面,而管理创新的阻力则主要来源于人的因素、组织的因素以及物质技术条件等.只有明确管理创新的"力场"构成,才能有目的地增强动力、克服阻力,实现增"正"减"负",从而推动管理创新活动的顺利进行.     

我国物流组织与物流体系的创新与发展

现代物流作为“降低成末的最后边界”，从组织看，是由流体、载体和流向三要素构成，从运作看，体现储存、运输和配送三大功能；从投入产出看，寻求降低物流成本和提高服务水平的动态均衡。供应式物流到订购式物流是我国物流组织创新的内容，其发展战略是即时物流、协同或一体化物流、高度化物流。物流体系创新应从行政区域、组织到按经济区域组织来实现。     

中国航空货运顾客价值动因的实证研究

通过考察中国航空货运,建立航空顾客价值的决定因素与动态性理论模型,运用结构方程方法对其检验,结果表明:时间因素和便捷性因素是影响货运顾客价值的核心要素,价格因素已退之其次,而且来自竞争者、服务商、顾客、宏观环境的变化都对顾客价值动态性有显著影响。     

Nonresponse Bias and Stimulus Effects in the Dutch National Election Study

Bias is a much-debated issue in survey research. Answer effects (respondents claim to have behaved differently than they did in reality), nonresponse bias (nonrespondents differ on important variables from the respondents) and stimulus effects (by participating in a previous wave of a study, respondents change their behavior or attitude) can seriously distort the results of survey research. By using data from the 1998 Dutch National Election Study the authors show that the results of election research can indeed be affected by bias. Not only are significant effects found in the distribution of political attitude and voting behavior variables as a result of both nonresponse bias and stimulus effects, it is also shown that relations between variables change as a result of bias.     

Using replication research for just-in-time purchasing construct development

Using replication research, the validity of the just-in-time purchasing (JITP) construct is established. Although empirical researchers have examined JITP over the last two decades, a consistent set of valid, reliable factors has not been used. The lack of valid construct is a barrier to hypotheses testing and meta-analyses on JITP. This study confirmed the validity of six JITP factors: top management commitment, employee relations, training, supplier quality management, transportation, and quantities delivered using two different data sets and testing the first- and second-order structure of the JITP construct. Content validity, reliability, unidimensionality, convergent validity, discriminant validity, criterion-related validity, and an invariant factorial structure of the JITP construct were empirically established.