虚拟企业伙伴选择方法的研究

选择正确的合作伙伴是虚拟企业组建的关键步骤之一,也是虚拟企业成功运作的首要前提。针对某一具体案例,从目前虚拟企业伙伴选择的几种典型方法入手,运用系统研究方法,对各方法的具体思路作一总结,并提出了各方法的适用范围、优势与弊端,同时,找出了它们之间的差异所在。     

新型高效劣质柴油深度脱硫脱芳催化剂的研制

以溶胶-凝胶合成法结合CO2超临界干燥技术制备了性能优良的介孔TiO2-SiO2复合氧化物.以复合氧化物为载体,金属Ni-W或Pt/Pt-Pd为加氢组分,采用浸渍法制备的催化剂,采用两段加氢工艺,以大庆重催柴油为原料,在100 mL加氢装置上的评价结果表明,以TiO2-SiO2复合氧化物为载体制备的加氢催化剂,具有良好的加氢脱硫、脱芳性能,能使柴油的硫和芳烃指标达到<世界燃料标准>Ⅲ类柴油指标要求.     

知识管理绩效评估的实证分析

知识管理是企业管理划时代的变革,知识管理的绩效评估体系仍然是一个新的领域,仍处于探索阶段。所以必须在现有知识管理评估方法的基础上,通过对知识管理目标体系的分析和相关指标体系的设计,运用层次分析法和模糊数学方法,建立战略导向的知识管理绩效评估模型,为企业评估、跟踪和实时监测其知识管理活动提供可供参考的理论依据和实施准则。     

基于过程挖掘的物流运作风险发现研究

为了探究物流运作过程中存在的风险,提高物流运作效率,增强物流企业管理能力,以真实的事件日志为基础,运用过程挖掘方法发现物流企业运作过程中的风险。首先以Petri网理论为基础,构建了理想的工作模型,然后使用过程挖掘工具ProM,运用模糊挖掘算法和启发式挖掘算法,对物流运作过程中产生的真实事件日志进行挖掘,获得实际的客观视图,最后利用ProM工具的一致性检查发现物流运作过程中的异常行为模式,并分析物流运作过程中的偏差以及存在的风险。结果表明,过程挖掘能客观地揭示事件日志中活动之间的依赖关系,并发现物流企业自身运作过程中的偏差和风险。研究结果为全面、系统地分析物流企业潜在风险提供了新思路,有助于物流企业发现运作过程中的问题,对物流企业优化运作过程和提高管理效率具有重要的借鉴意义。     

Process innovation capability and subsequent collaborative team performance in travel planning: a knowledge exchange platform perspective

Purpose: Backpacker tourism is flourishing in this century as the high development of Internet technology which enables travellers to search for resources they need easier. The research goal of this study was to exam how virtual skill and collective efficacy affect process innovation capability and subsequent team performance of collaborative design team in a virtual community. Design/methodology/approach: In this study, we formulated the virtual team model from the perspectives of open innovation paradigm and virtual competence, and we collected virtual community participation samples from the online communities. Invitation emails were delivered to numerous trip plan initiators in two well-known online travel communities for filling survey questionnaires for this study. In total, 3000 invitation messages were mailed, of which 373 were returned completed. The model and hypotheses were tested by structural equation modelling. Findings: Virtual competence, including collective efficacy and virtual media skill, is the essential key to facilitate process innovation capability and subsequent team performance success. Besides, knowledge sharing significantly moderates the relationship between process innovation capability and the team performance. Originality/value: Backpackers in the online travel communities have to have not only the willingness to collaborate, but also the abilities of using the correct tool to help with their tasks. When a self-efficacy gets into collective efficacy, it enables the collaborative team to develop with good virtual competencies. Accordingly, trip plan initiator and participants of a virtual team are as expertise contributors between conformity in online communities and online compulsive control tendencies.     

Emotions,deliberations, and end‐of‐life products

Death is inevitable; yet, not all consumers prepare for death by purchasing end‐of‐life (EOL) products. Using the theory of reasoned action (TRA) and the dual‐process model framework, this study aims to examine the role of emotions and cognitions in influencing consumers' decisions to engage in planning for death. A mixed methodology design was used. Study 1, a qualitative study, uncovered positive and negative emotions and deliberative reasoning that comprise consumers' EOL purchase decision process. Study 2, a quantitative study, confirmed that emotions and deliberations independently and jointly influenced consumers' EOL attitude and behavior and that emotions affected deliberations for both prepaid funerals and wills. Subjective norms outperformed attitude in predicting both products' purchase behavior. These finding supported the dual‐process model of behavior and the TRA in the EOL research context and contributed to the EOL literature by investigating the effects of emotions and deliberations concurrently; thus validating the important role of emotions in influencing EOL planning and purchase. In light of our findings, marketers could, after due cognizance of the morbidity and sensitivity of the topic, develop actionable promotional and segmentation strategies for EOL products and other emotion‐laden, unsought products and service.     

Opportunities and pitfalls for researchers to contribute to the design of evidence-based agricultural policies: lessons from Uganda

Agricultural policies in sub-Saharan Africa have paid insufficient attention to sustainable intensification. In Uganda, agricultural productivity has stagnated with aggregate increases in crop production being attributed to expansion of cultivated land area. To enhance sustainable crop intensification, the Ugandan Government collaborated with stakeholders to develop agricultural policies using an evidence-based approach. Previously, evidence-based decision-making tended to focus on the evidence base rather than evidence and its interactions within the broader policy context. We identify opportunities and pitfalls to strengthen science engagement in agricultural policy design by analysing the types of evidence required, and how it was shared and used during policy development. Qualitative tools captured stakeholders' perspectives of agricultural policies and their status in the policy cycle. Subsequent multi-level studies identified crop growth constraints and quantified yield gaps which were used to compute the economic analyses of policy options that subsequently contributed to sub-national program planning. The study identified a need to generate relevant evidence within a short time 'window' to influence policy design, power influence by different stakeholders and quality of stakeholder interaction. Opportunities for evidence integration surfaced at random phases of policy development due to researchers’ ’embededness’ within co-management and coordination structures.     

Earnings management of initial public offering firms: evidence from regulation changes in China

Discretionary current accruals of Chinese initial public offering (IPO) firms decreased after the abolition of fixed‐price offering systems that directly linked offering price to reported earnings. Results suggest IPO firms that decrease managerial ownership manage earnings upward during the fixed‐price offering period, but this relationship disappeared after the introduction of a book‐building system. We also find that bank debt is negatively related to discretionary current accruals during the fixed‐price offering period, but no relation exists for the book‐building period. Leverage has a significant positive relationship with earnings management. However, this finding is potentially attributable to nonoffering price objectives or endogeneity biases.     

环境技术对全过程管理的影响研究——来自2001—2010年我国省份面板数据的经验证据

以2001—2010年工业二氧化硫（SO2）与工业化学需氧量（COD）两种污染物为研究样本，利用LMDI方法分解了两种污染物的全过程管理，并以此为研究样本检验环境技术对全过程管理的影响效果。研究发现，环境技术水平的提高有利于全过程管理的实现。环境技术对工业SO2全过程管理的影响主要通过末端治理实现，而环境技术对工业COD全过程管理的影响则主要通过源头防治实现。     

基于JIT思想对汽车玻璃生产线WIP的控制策略

本文分析了汽车玻璃加工生产线的生产流程,生产车间不同种类的在制品(WIP)数量很庞大,为此研究生产线的瓶颈工序,得到瓶颈工序生产线的切换时间对WIP库存的影响,研究生产线的切换时间、工序之间的生产节拍比和WIP库存数三者之间的关系,结合JIT和WIP库存控制策略来保证生产线的流畅生产,归纳出关键的工序节拍比下所需的WIP库存数的动态变化情况,从而动态地控制WIP库存的变化并最大程度地降低车间的WIP库存。