基于DEMATEL-ISM的食品安全治理公众参与能力指标研究

目的构建食品安全治理公众参与能力指标体系,揭示食品安全治理公众参与能力指标之间的相关关系和层级结构。方法运用文献研究和专家调查法构建食品安全治理公众参与能力指标体系,采用DEMATEL-ISM方法研究食品安全治理公众参与能力指标之间的相关关系和层级结构。结果在12个二级指标中有4个指标为重要因素;原因因素包含4个指标,结果因素包含8个指标;食品安全治理公众参与能力指标可划分为3个层级,其中直接层包含参与意识等6个指标,中间层包含法律知识等4个指标,基础层包含食品安全知识等2个指标。结论食品安全治理公众参与能力指标之间存在相互作用关系和典型的层级结构,在加强公众参与能力建设时,应充分考虑指标之间的相互作用关系和层级结构。     

Barrier identification,analysis and solutions of hydrogen energy storage application in multiple power scenarios based on improved DEMATAL-ISM approach

China is ambitiously moving towards “carbon emission peak” and “carbon neutral” targets, and the power sector is in the vanguard. The coordination of power and hydrogen energy storage (HES) can improve energy utilization rate, promoting the deep decarbonization of power industry and realizing energy cascade utilization. However, limited by technology, cost, environment, society and other factors there are few application projects. Identifying major barriers and eliminating unimportant factors can make problem solving more efficient. Decision-making trial and evaluation laboratory (DEMATEL) combined with interpretative structural modeling (ISM) method is innovatively used to establish a barrier analysis framework for HES applied in multiple power scenarios. This method can show the direction and degree of the impact relationship between barriers and determine key ones, which is conducive to presenting targeted and effective solutions. Additionally, the interval type-2 fuzzy set (IT2FS) is introduced to reduce the distortion of evaluation information and ensure the rationality of analysis. Specifically, a comprehensive barrier system taking into account both commonalities and characteristics is established firstly. For different decision considerations, four typical power scenarios are screened to better illustrate how critical barriers play different roles in different scenarios. Then, the proposed analytical framework is applied to identify the key barriers in each scenario and find out the interlinking relationship among the barriers. The results suggest that technical barriers tend to dominate the fundamental barriers. Among that, immature hydrogen storage and transportation technology is a prevalent and fundamental barrier. Besides, high initial investment cost and high P2X conversion costs are crucial reasons that prevent relevant investors from entering the market. And inadequate policy has led to a poor environment for HES development. It's worth noting that, other key barriers focused on each scenario are not the same, and also are discussed in detail in this study. Finally, comprehensive solutions and policy suggestions to eliminate or reduce the barriers are presented.     

基于 DEMATEL-ISM 模型的装配式建筑供应链韧性影响因素研究

装配式建筑供应链面临着巨大风险,而供应链在应对风险时能否及时复原取决于韧性水平的高低。通过文献研究、专家访谈确定 18 个影响韧性的重要因素,构建 DEMATEL-ISM 综合模型,运用 Matlab 工具进行数理计算,以探讨各因素对装配式建筑供应链韧性的重要性程度和影响力大小,并将因素进行层次划分,识别各因素之间的相互作用关系。模型运算结果表明,提高信息共享程度能够有效弥补恶劣天气带来的负面影响;在制定韧性提高决策时应重点关注采购、运输和装配环节;增进设计、制造和运输环节间的联系交流能够增强供应链韧性;注重员工因素可以显著促进供应链韧性水平的提高。研究结果为装配式建筑供应链的稳定运作和效率提升提供新的管理思路。     

区块链技术应用于建筑业信息管理的影响因素研究

随着建筑业日新月异的发展,数据体量巨增形成的数据壁垒,严重影响管理资源的协同,传统管理模式已无法满足数字化转型的需求。区块链技术作为时代核心技术,其突出的优势是可解决建筑业目前存在的痛点与难点。首先识别出区块链技术应用于建筑业信息管理的 16 个影响因素,通过 DEMATEL 模型分析因素的因果关系及影响程度。采用 ISM 模型分析因素间的层级结构及作用路径。基于组合模型 DEMATEL-ISM 对影响因素展开深入系统地分析,得到影响区块链技术应用于建筑业信息管理的 5 个关键因素,并提出推进措施。     

基于 DEMATEL-ISM 的全过程工程咨询服务计费模式影响因素研究

全过程工程咨询服务在中国是一种新兴的咨询服务模式,研究其计费模式影响因素及各因素之间的关系,有助于全过程工程咨询服务的发展。经分析得出 31 个计费模式影响因素,在此基础上提出了基于 DEMATEL-ISM 的全过程工程咨询服务影响因素分析模型,发现了影响计费模式因素间的作用关系及路径。结果表明,承接方全咨项目经历、项目投资额大小、项目生命周期各阶段独立关系、项目所属行业、招标方式为关键影响因素。研究成果为全过程工程咨询服务计费模式选择及发展提供参考依据。     

Service-oriented collaboration framework based on cloud platform and critical factors identification

Previous studies normally investigate the collaboration elements associated with cloud platform from a single perspective, such as information, resource or business coordination, failing to examine service value chain collaboration from a systematic perspective. In fact, service value chain collaboration is affected by multi-dimensional factors and these factors often interact with each other. Considering collaboration elements separately is unfavorable to the value improvement of whole service chain. In this work, a collaborative service model is proposed from the dimensions of product life cycle, core service businesses and stakeholders through system engineering analysis, by which the multi-stakeholder and multi-process collaboration are illustrated. Then, a collaboration framework based on cloud platform is developed for service value chain with a comprehensive consideration of coordination mechanism, cloud platform services, businesses collaboration and goals collaboration. To determine the critical factors affecting service value chain collaboration, a hybrid methodology, which integrates Decision-Making Trial and Evaluation Laboratory (DEMATEL) and Interpretative Structural Modelling (ISM), is presented to identify the intensity of causal relationship and to develop the hierarchical structure among multi-dimensional collaboration elements. The results of the present work provide valuable insights into the overall implementation and practical operation of service value chain collaboration in the cloud platform environment, thereby accelerating the transformation of manufacturing industry into servitization.     

基于改进 DEMATEL-ISM 的建筑施工安全风险影响因素分析

为提高建筑施工过程中风险控制水平,有效减少建筑安全事故的发生, 基于事故案例研究、文献分析和专家讨论提炼了 19 项风险影响因素,构建了建筑施工安全风险影响体系。采用 Apriori 算法改进 DEMATEL（决策实验室分析法）确定影响因素的重要性和因果属性,并集成 ISM（解释结构模型）建立影响因素的递阶结构模型。研究表明: 改进的 DEMATEL-ISM模型可反应风险因素之间的客观联系;确定了 11 个原因因素和 8 个结果因素, 其中违章冒险作业、施工作业环境不良、缺乏安全技能知识、无证上岗和安全教育培训不彻底是导致建筑安全事故发生的关键风险因素; 影响因素可划分为 3 阶 7 层的递阶结构,现场安全管理缺失是导致事故发生的根本影响因素。研究结果可为管理者采取相关针对性措施,预防安全事故的发生提供一定的参考依据。     

基于 DEMATEL-ISM 的甘肃省智慧工地建设制约因素及发展路径研究

随着我国信息化、工业化的发展,智慧工地受到越来越多的关注。为提高甘肃省智慧工地建设水平,基于建筑企业的视角,从施工现场管理5 个关键要素和维度梳理了甘肃省智慧工地建设制约因素,识别出制约甘肃省智慧工地发展的主要因素。应用DEMATEL 和ISM 方法构建模型,通过模型厘清智慧工地建设各制约因素间的层级关系,并确定出关键制约因素,提出了提升甘肃省智慧工地建设水平的应对措施及发展路径,为推动甘肃省智慧工地的发展提供一定的理论指导和参考。     

System failure analysis based on DEMATEL–ISM and FMECA

A new method of system failure analysis was proposed. First, considering the relationships between the failure subsystems,the decision making trial and evaluation laboratory（DEMATEL） method was used to calculate the degree of correlation between the failure subsystems, analyze the combined effect of related failures, and obtain the degree of correlation by using the directed graph and matrix operations. Then, the interpretative structural modeling（ISM） method was combined to intuitively show the logical relationship of many failure subsystems and their influences on each other by using multilevel hierarchical structure model and obtaining the critical subsystems. Finally, failure mode effects and criticality analysis（FMECA） was used to perform a qualitative hazard analysis of critical subsystems, determine the critical failure mode, and clarify the direction of reliability improvement.Through an example, the result demonstrates that the proposed method can be efficiently applied to system failure analysis problems.     

基于 DPSIR 理论的装配式建筑环境效益影响因素研究

随着我国老龄化程度的持续加深,劳动力减少对建筑业的直接影响要求加快建筑产业升级。装配式建造方式在提高劳动生产效率和施工建造水平的同时还具有减少环境污染、节约资源的特点,但装配式建筑的环境效益并没有充分被社会所认识,增量成本高导致开发商积极性低,公众也未充分认识装配式的环境优势。通过 DPSIR 模型探究装配式建筑环境效益的影响因素,结合 DEMATEL-ISM 分析建筑环境效益形成逻辑,寻找影响环境效益形成的重要因素和关键路径,发现通过政府、企业等各方的主动“响应”可以不断促进装配式建筑将其理论环境优势转化为现实环境效益,希望这些发现能帮助装配式建筑发挥出更大环境效益。