Multi-criteria analysis

多准则分析
  • 文章类型: Journal Article
    在过去的几十年里,几项研究强调了食品行业的重大影响。因此,加强该部门的可持续性已变得至关重要。实现这一目标的关键步骤涉及定义和实施有效的可持续性度量和测量。在这方面,采用多准则决策分析(MCDA)方法可以被视为最适合和有前途的方法之一,可以全面捕获农业实践和食品供应链的复杂和广泛影响。在这样的背景下,对衡量食品供应链可持续性(收获和收获后阶段)的多标准方法和工具的科学文献进行了系统审查,结果选择和分析了42篇文章。要深入研究选定的文章,已经确定了三个主要重点领域。第一个关于MCDA方法及其特点,揭示了食品供应链可持续性评估最常用的方法。第二个,专注于参与式方法,导致了利益相关者参与图的定义,强调相关利益相关者的类型,他们参与的原因和参与方式。最后,第三个重点是与每个研究中采用的指标的分析和分类以及它们所指的可持续性维度有关。本审查研究的结果全面概述了在制定食品行业可持续性评估MCDA时要考虑的基本方面,作为学者和实践者的宝贵资源。
    In the last decades, several studies have highlighted the significant impacts of the food sector. Therefore, enhancing sustainability within this sector has become of paramount importance. A crucial step towards achieving this goal involves the definition and implementation of effective sustainability metric and measurements. In this regard, the adoption of multi-criteria decision analysis (MCDA) methods can be seen as one of the most suitable and promising approach to comprehensively capture the complex and broad-ranging effects of agricultural practices and food supply chains. In such context, a systematic review of the scientific literature on multi-criteria approaches and tools for measuring the sustainability of food supply chains (harvest and post-harvest stages) has been carried out, resulting in the selection and analysis of 42 articles. To delve into the selected articles, three main areas of focus have been identified. The first about MCDA methods and their features, revealing the most adopted methods for sustainability assessments of food supply chains. The second, focusing on the participatory approach, led to the definition of a stakeholder\'s engagement map, highlighting the typology of stakeholders involved, the reasons of their involvement and engagement methods. Lastly, the third focus is related to the analysis and classification of indicators adopted in each study and the sustainability dimensions to which they refer to. The results of the present review study provide a comprehensive overview of the essential aspects to be considered when developing a MCDA for sustainability assessment in the food sector, serving as a valuable resource for both scholars and practitioners.
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  • 文章类型: Journal Article
    We reviewed the literature focusing on nineteen integrated Energy System Models (ESMs) to: (i) identify the capabilities and shortcomings of current ESMs to analyze adequately the transition towards a low-carbon energy system; (ii) assess the performance of the selected models by means of the derived criteria, and (iii) discuss some potential solutions to address the ESM gaps. This paper delivers three main outcomes. First, we identify key criteria for analyzing current ESMs and we describe seven current and future low-carbon energy system modeling challenges: the increasing need for flexibility, further electrification, emergence of new technologies, technological learning and efficiency improvements, decentralization, macroeconomic interactions, and the role of social behavior in the energy system transition. These criteria are then translated into required modeling capabilities such as the need for hourly temporal resolution, sectoral coupling technologies (e.g., P2X), technological learning, flexibility technologies, stakeholder behavior, cross border trade, and linking with macroeconomic models. Second, a Multi-Criteria Analysis (MCA) is used as a framework to identify modeling gaps while clarifying high modeling capabilities of MARKAL, TIMES, REMix, PRIMES, and METIS. Third, to bridge major energy modeling gaps, two conceptual modeling suites are suggested, based on both optimization and simulation methodologies, in which the integrated ESM is hard-linked with a regional model and an energy market model and soft-linked with a macroeconomic model.
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  • 文章类型: Journal Article
    A considerable amount of wet biogenic residues and waste has no resource-efficient use in several European countries yet. Hydrothermal processes (HTP) seem to be promising for treating such biomass as they best work with substrates with 70% to 90% water content. However, thus far the suitability of HTP for this purpose has not been sufficiently evaluated, for which this work aims to identify suitable multi-criteria analysis (MCA) methods that can be used to identify promising ways for the hydrothermal treatment of wet bio-waste. A review on 31 recent MCA studies in bio-waste management was conducted with the aim of comparing them to methodological requirements for evaluating HTP. Furthermore, an MCA approach for HTP based on the review findings is proposed. Results show that no observed MCA method is directly transferable for assessing HTP, for which a customized approach combining the analytical hierarchy process and the technique for order preference by similarity to ideal solutions is proposed and preliminarily validated with literature data. These preliminary calculations indicate that hydrothermal gasification seems most promising under consideration of multiple criteria using the available average and exemplary data. However, needless to say there is still a long way to go to obtain the sufficient adequate data to validate and use the model appropriately, for which further studies are necessary to acquire more reliable data and to assess also future technology developments of HTP.
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  • 文章类型: Journal Article
    目的:本研究的目的是(1)确定由世界卫生组织(WHO)欧洲区域办事处监测的53个国家的国家营养调查的覆盖率,并确定提供方面的差距,(2)描述相关调查属性;(3)检查是否报告了能量和营养素,以期为循证营养政策规划提供信息。
    方法:使用三种方法收集饮食调查信息:(1)直接向调查作者和其他相关联系人发送电子邮件,(2)系统回顾文献数据库和(3)一般网络搜索。与时间范围有关的调查特征,自1990年以来发现的所有相关调查都提供了抽样和饮食方法以及所报告的营养素。
    方法:世卫组织欧洲区域办事处的53个国家,它们需要对整个生命过程中的饮食调查进行概述。
    方法:国家饮食调查中的欧洲人(成人和儿童)。
    结果:在34个国家发现了1990年后进行的109项全国代表性饮食调查。其中,2000年后,来自33个国家的78项调查被发现,其中,来自27个国家的48项调查包括儿童,来自30个国家的60项调查包括成人。在53个国家中,有19个国家没有进行具有全国代表性的调查,主要来自中欧和东欧。多个24小时召回和食物日记是最常见的饮食评估方法。从2000年后的调查中,只有22个国家报告了能量和营养素的摄入量;大量营养素的报道比微量营养素的报道更广泛。
    结论:不到三分之二的世卫组织欧洲国家有全国代表性的饮食调查,主要收集2000年后。主要的可用性差距在于中欧和东欧国家,因此,营养政策可能缺乏适当的证据基础。饮食方法的差异可能会限制国家间比较的范围。
    OBJECTIVE: The objectives of this study were (1) to determine the coverage of national nutrition surveys in the 53 countries monitored by the World Health Organization (WHO) Regional Office for Europe and identify gaps in provision, (2) to describe relevant survey attributes and (3) to check whether energy and nutrients are reported with a view to providing information for evidence-based nutrition policy planning.
    METHODS: Dietary survey information was gathered using three methods: (1) direct email to survey authors and other relevant contacts, (2) systematic review of literature databases and (3) general web-based searches. Survey characteristics relating to time frame, sampling and dietary methodology and nutrients reported were tabled from all relevant surveys found since 1990.
    METHODS: Fifty-three countries of the WHO Regional Office for Europe, which have need for an overview of dietary surveys across the life course.
    METHODS: European individuals (adults and children) in national diet surveys.
    RESULTS: A total of 109 nationally representative dietary surveys undertaken post-1990 were found across 34 countries. Of these, 78 surveys from 33 countries were found post-2000, and of these, 48 surveys from 27 countries included children and 60 surveys from 30 countries included adults. No nationally representative surveys were found for 19 of 53 countries, mainly from Central and Eastern Europe. Multiple 24hr recall and food diaries were the most common dietary assessment methods. Only 22 countries reported energy and nutrient intakes from post-2000 surveys; macronutrients were more widely reported than micronutrients.
    CONCLUSIONS: Less than two-thirds of WHO Europe countries have nationally representative diet surveys, mainly collected post-2000. The main availability gaps lie in Central and Eastern European countries, where nutrition policies may therefore lack an appropriate evidence base. Dietary methodological differences may limit the scope for inter-country comparisons.
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