Supply chain management

供应链管理
  • 文章类型: Journal Article
    将机器学习(ML)技术集成到智能食品安全领域代表了一个快速发展的领域,具有改变食品质量和安全管理和保证的巨大潜力。本章将讨论机器学习在食品供应链不同部分的能力,包括收获前的农业活动,收获后的过程和交付给消费者。本章详细介绍了应用尖端ML推进食品科学的三个具体示例,包括它用来改善啤酒的味道,使用自然语言处理来预测食品安全事件,并利用社交媒体来检测食源性疾病的爆发。尽管理论和实践都取得了进展,机器学习在智能食品安全中的应用仍然存在数据可用性等问题,模型可靠性,和透明度。解决这些问题有助于充分发挥ML在食品安全方面的潜力。ML在智能食品安全中的发展也受到社会和行业影响的推动。法律政策的完善和实施带来了机遇和挑战。智能食品安全的未来在于ML技术的战略实施,导航社会和行业影响,适应人工智能时代的监管变化。
    Integration of machine learning (ML) technologies into the realm of smart food safety represents a rapidly evolving field with significant potential to transform the management and assurance of food quality and safety. This chapter will discuss the capabilities of ML across different segments of the food supply chain, encompassing pre-harvest agricultural activities to post-harvest processes and delivery to the consumers. Three specific examples of applying cutting-edge ML to advance food science are detailed in this chapter, including its use to improve beer flavor, using natural language processing to predict food safety incidents, and leveraging social media to detect foodborne disease outbreaks. Despite advances in both theory and practice, application of ML to smart food safety still suffers from issues such as data availability, model reliability, and transparency. Solving these problems can help realize the full potential of ML in food safety. Development of ML in smart food safety is also driven by social and industry impacts. The improvement and implementation of legal policies brings both opportunities and challenges. The future of smart food safety lies in the strategic implementation of ML technologies, navigating social and industry impacts, and adapting to regulatory changes in the AI era.
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  • 文章类型: Journal Article
    机器人移动履行系统(RMFS)在处理大规模订单和导航复杂环境方面面临挑战,经常遇到一系列复杂的决策问题,例如订单分配,货架选择,机器人调度为了应对这些挑战,本文将深度强化学习(DRL)技术集成到RMFS中,满足高效订单处理和系统稳定性的需要。本研究集中在RMFS的三个关键阶段:订单分配和排序,货架选择,和协调的机器人调度。对于每个阶段,建立了数学模型,并提出了相应的解决方案。与传统方法不同,DRL技术的引入解决了这些问题,利用遗传算法和蚁群优化来处理与大规模订单相关的决策。通过仿真实验,评估性能指标,例如货架访问频率和RMFS的总处理时间。实验结果表明,与传统方法相比,我们的算法擅长处理大规模订单,展示非凡的优越性,能够在一小时内完成大约110个任务。未来的研究应该集中在对RMFSs的每个阶段进行综合决策建模,并为大规模问题设计有效的启发式算法,进一步提高系统性能和效率。
    Robotic Mobile Fulfillment Systems (RMFSs) face challenges in handling large-scale orders and navigating complex environments, frequently encountering a series of intricate decision-making problems, such as order allocation, shelf selection, and robot scheduling. To address these challenges, this paper integrates Deep Reinforcement Learning (DRL) technology into an RMFS, to meet the needs of efficient order processing and system stability. This study focuses on three key stages of RMFSs: order allocation and sorting, shelf selection, and coordinated robot scheduling. For each stage, mathematical models are established and the corresponding solutions are proposed. Unlike traditional methods, DRL technology is introduced to solve these problems, utilizing a Genetic Algorithm and Ant Colony Optimization to handle decision making related to large-scale orders. Through simulation experiments, performance indicators-such as shelf access frequency and the total processing time of the RMFS-are evaluated. The experimental results demonstrate that, compared to traditional methods, our algorithms excel in handling large-scale orders, showcasing exceptional superiority, capable of completing approximately 110 tasks within an hour. Future research should focus on integrated decision-making modeling for each stage of RMFSs and designing efficient heuristic algorithms for large-scale problems, to further enhance system performance and efficiency.
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  • 文章类型: Journal Article
    当今经济中不可持续的做法所带来的挑战强调了向循环经济(CE)和整体供应链(SC)观点过渡的迫切需要。基准在管理圆形SCs中起着关键作用,提供度量来衡量进度。然而,对最佳基准方法缺乏共识,阻碍了循环商业实践的有效实施。为了解决这个差距,我们对文献进行了系统的回顾,确定29个相关出版物。分析揭示了基准循环性的30个独特属性和子属性,它们被分为五个主要属性。主要属性是目标,主题,关键绩效指标(KPI),数据源,和评估方法,而子属性被组织为主要属性的特征并被描述为特征模型。从选定的出版物中提取,我们用例子说明了每个功能。我们的模型为循环性提供了全面的基准参考,将成为管理者向循环性过渡的宝贵工具。寻求基准向循环性过渡的供应链可以应用参考模型,以确保其基准策略与最新知识一致。通过提供对不同经济部门有效的通用循环基准方法,我们的发现有助于解决CE缺乏通用框架的理论努力。
    The challenges posed by unsustainable practices in today\'s economy underscore the urgent need for a transition toward a circular economy (CE) and a holistic supply chain (SC) perspective. Benchmarking plays a pivotal role in managing circular SCs, offering a metric to gauge progress. However, the lack of consensus on the optimal benchmarking approach hampers effective implementation of circular business practices. To address this gap, we conducted a systematic review of the literature, identifying 29 pertinent publications. The analysis revealed 30 unique attributes and sub-attributes for benchmarking circularity, which were clustered into five main attributes. The main attributes are goals, subjects, key performance indicators (KPIs), data sources, and evaluation methods, while the sub-attributes are organised as features of the main attributes and depicted as a feature model. Drawing from selected publications, we illustrated each feature with examples. Our model offers a comprehensive benchmarking reference for circularity and will be a valuable tool for managers in the transition toward circularity. Supply chains seeking to benchmark their transition to circularity can apply the reference model to ensure that their benchmarking strategy is consistent with state-of-the-art knowledge. By providing a generic circularity benchmarking approach that is valid for diverse economic sectors, our findings contribute to theoretical efforts to address the lack of generic frameworks for CE.
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  • 文章类型: Journal Article
    针对严重急性呼吸道综合症冠状病毒2型(SARS-CoV-2)等疾病的即时(POC)测试的有效供应链管理(SCM)需要不同利益相关者的积极参与,政府实体,和监管机构。负责监督POC测试的各个方面,包括采购,质量保证,storage,库存管理,分布,和人力资源能力,在于国家,省,和地方各级政府。这项研究旨在合作开发一种创新方法,以在资源有限的环境中增强SARS-CoV-2POC诊断服务的SCM,使用林波波省的莫帕尼区,南非,作为一个案例研究。
    主要利益相关者被邀请参加使用目的抽样的在线研讨会。研究采用名义分组技术(NGT)进行数据收集,由两个阶段组成。第一阶段侧重于识别COVID-19快速测试供应链中的障碍,而第二阶段旨在制定战略,克服第一阶段确定的优先障碍。参与者使用1-5的李克特量表对障碍和策略进行排名,并计算每个人的总体排名得分。向参与者提供了排名练习的结果,以获得反馈。
    来自国家(n=1)的11个主要利益相关者,省(n=4),和地方政府(n=2)级,研究实体(n=3),和非政府组织(n=1)参加了这项研究。参与者确定了供应链中的重大障碍,例如检测试剂盒的可用性,未知的需求,大流行期间关于SCM的信息,控制库存的方法,和采购流程。关键利益相关者建议的策略包括监控库存水平和优化库存可见性系统以提高测试可用性,增强信息可见性和一致的数据更新,以解决大流行期间的未知需求并改善SCM,采用数据捕获和数字化来进行有效的库存控制,并在国家一级实施需求规划和标准化采购流程,以加强库存采购。
    与关键利益相关者的成功合作,由NGT推动,共同创造了一种新的方法,在资源有限的环境中加强COVID-19诊断服务的SCM。这项研究有可能支持在这种情况下提供COVID-19诊断服务。建议进行的后续研究将评估实施这种方法的可行性。
    UNASSIGNED: Effective supply chain management (SCM) of point-of-care (POC) tests for diseases like severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) requires active participation from diverse stakeholders, government entities, and regulatory bodies. The responsibility for overseeing various aspects of POC tests, including procurement, quality assurance, storage, inventory management, distribution, and human resource capacity, lies with national, provincial, and local levels of government. This study aimed to collaboratively develop an innovative approach to enhance SCM for SARS-CoV-2 POC diagnostic services in resource-limited settings, using the Mopani District in Limpopo province, South Africa, as a case study.
    UNASSIGNED: Key stakeholders were invited to participate in an online workshop using purposive sampling. The study employed the nominal group technique (NGT) for data collection, which consisted of two phases. Phase 1 focused on identifying barriers in the supply chain of COVID-19 rapid tests, while phase 2 aimed to devise strategies to overcome the priority barriers identified in phase 1. Participants used a Likert scale of 1-5 to rank barriers and strategies, and an overall ranking score was calculated for each. The participants were provided with the results of the ranking exercise for their feedback.
    UNASSIGNED: Eleven key stakeholders from national (n = 1), provincial (n = 4), and local government (n = 2) levels, research entities (n = 3), and non-governmental organizations (n = 1) took part in the study. Participants identified significant barriers in the supply chain, such as the availability of testing kits, unknown demand, information on SCM during a pandemic, methods of controlling stock, and procurement processes. Strategies suggested by key stakeholders included monitoring stock levels and optimizing stock visibility systems to improve test availability, enhancing information visibility and consistent data updates to address unknown demand and improve SCM during a pandemic, employing data capturing and digitization for effective stock control, and implementing demand planning and standardized procurement processes at the national level to enhance stock procurement.
    UNASSIGNED: The successful collaboration with key stakeholders, facilitated by the NGT, resulted in the co-creation of a novel approach to enhance SCM for COVID-19 diagnostic services in resource-limited settings. This study holds the potential to support the provision of COVID-19 diagnostic services in such settings. A recommended follow-up study would assess the feasibility of implementing this approach.
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  • 文章类型: Journal Article
    全球社会正在积极寻求替代能源,以减轻环境问题并减少对化石燃料的依赖。生物柴油,被公认为清洁和环保的燃料,与石油基替代品相比具有优势,已被确定为可行的替代品。然而,由于昂贵的生产工艺,其商业化面临挑战。建立更有效的大规模生产和分销供应链可以克服这些障碍,使生物柴油成为具有成本效益的解决方案。尽管在各种可再生能源供应链领域发表了大量评论文章,在专门解决生物柴油供应链网络设计的文献中仍然存在空白。本研究需要对生物柴油供应链网络的设计进行全面的系统文献综述(SLR)。主要目标是在经济上制定一个,environmental,和社会优化的供应链框架。审查还力求全面概述这些供应链中涉及的相关技术术语和关键活动。通过这个单反,对现有文献的全面检查和综合将为生物柴油供应链的设计和优化提供有价值的见解。此外,它将确定该领域的关键研究差距,提出第四代原料的探索,整合多渠道链,并将可持续性和弹性方面纳入供应链网络设计。这些提议的领域旨在解决现有的知识差距,并提高生物柴油供应链网络的整体有效性。
    The global community is actively pursuing alternative energy sources to mitigate environmental concerns and decrease dependence on fossil fuels. Biodiesel, recognized as a clean and eco-friendly fuel with advantages over petroleum-based alternatives, has been identified as a viable substitute. However, its commercialization encounters challenges due to costly production processes. Establishing a more efficient supply chain for mass production and distribution could surmount these obstacles, rendering biodiesel a cost-effective solution. Despite numerous review articles across various renewable energy supply chain domains, there remains a gap in the literature specifically addressing the biodiesel supply chain network design. This research entails a comprehensive systematic literature review (SLR) focusing on the design of biodiesel supply chain networks. The primary objective is to formulate an economically, environmentally, and socially optimized supply chain framework. The review also seeks to offer a holistic overview of pertinent technical terms and key activities involved in these supply chains. Through this SLR, a thorough examination and synthesis of existing literature will yield valuable insights into the design and optimization of biodiesel supply chains. Additionally, it will identify critical research gaps in the field, proposing the exploration of fourth-generation feedstocks, integration of multi-channel chains, and the incorporation of sustainability and resilience aspects into the supply chain network design. These proposed areas aim to address existing knowledge gaps and enhance the overall effectiveness of biodiesel supply chain networks.
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  • 文章类型: Journal Article
    在可持续发展的背景下,市场竞争加剧,和财政限制已成为绿色项目投资的重大障碍。绿色供应链金融(GSCF)以长期合作为特征,已成为缓解公司财务限制并将资本流入环境友好型行业的关键财务方法。我们提出了一个两级供应链,一个供应商和两个竞争的零售商在一个时期,并调查订购,销售,在竞争下同时进行融资决策。受财务考虑约束的零售商可能会获得GSCF或传统银行融资(BF)贷款。本研究调查了销售季节竞争对定价和销售策略的影响。结果表明,零售商根据市场竞争水平在清除和响应销售策略之间进行选择。在订购季节,当利率统一时,零售商平等地分享产品市场,供应商在考虑融资利率的同时制定供应链契约。在存在差别利率的情况下,零售商可能并不总是选择GSCF,即使他们提供了利率优势,由于运营和财务战略的综合影响。值得注意的是,竞争性零售商在初始绿色投资资本超过一定阈值时不会选择GSCF。
    In the context of sustainable development, market competition is intensifying, and financial constraints have emerged as a significant hindrance to green project investment. Green Supply Chain Finance (GSCF), characterized by long-term collaboration, has emerged as a crucial financial approach to mitigate corporate financial limitations and channel capital flows into environmentally friendly industries. We propose a two-echelon supply chain with one supplier and two competing retailers over a single period and investigate ordering, sales, and financing decisions simultaneously under competition. Retailers constrained by financial considerations may secure GSCF or traditional bank financing (BF) loans. This study investigates the influence of competition on pricing and sales strategies during the selling season. The results demonstrate that retailers select between clearance and responsive selling strategies based on the level of market competition. During the ordering season, retailers share the product market equally when interest rates are uniform, and the supplier formulates a supply chain contract while considering the financing interest rate. In the presence of differential interest rates, retailers may not always opt for the GSCF, even when they offer an interest rate advantage, due to the comprehensive impacts of operational and financial strategies. Remarkably, competitive retailers do not choose the GSCF when their initial green investment capital surpasses a certain threshold.
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  • 文章类型: Journal Article
    鳄梨生产主要局限于热带和亚热带地区,导致冗长的分销渠道,再加上他们不可预测的收获后行为,使鳄梨容易遭受重大损失和浪费。为了加强对\'Hass\'鳄梨成熟的监测,使用深度学习方法开发了一种数据驱动工具。这项研究涉及监测储存在三个不同储存环境中的478个鳄梨,使用5阶段成熟指数根据每个水果的共同特征对它们的成熟期进行分类。这些类别与鳄梨的每日摄影记录配对,导致标记图像的数据库。两种卷积神经网络模型,AlexNet和ResNet-18使用迁移学习技术进行了训练,以识别不同的成熟指标,能够预测成熟阶段和新的未知数据的保质期估计。该方法对成熟评估的最终预测精度为88.8%,当考虑样本的最佳方面时,96.7%的预测偏离其实际分类不超过半个阶段。根据归属分类的平均保质期估计在实际保质期的0.92天内,而模型的预测与实际保质期的平均偏差为0.96天。
    Avocado production is mostly confined to tropical and subtropical regions, leading to lengthy distribution channels that, coupled with their unpredictable post-harvest behavior, render avocados susceptible to significant loss and waste. To enhance the monitoring of \'Hass\' avocado ripening, a data-driven tool was developed using a deep learning approach. This study involved monitoring 478 avocados stored in three distinct storage environments, using a 5-stage Ripening Index to classify each fruit\'s ripening phase based on their shared characteristics. These categories were paired with daily photographic records of the avocados, resulting in a database of labeled images. Two convolutional neural network models, AlexNet and ResNet-18, were trained using transfer learning techniques to identify distinct ripening indicators, enabling the prediction of ripening stages and shelf-life estimations for new unseen data. The approach achieved a final prediction accuracy of 88.8% for the ripening assessment, with 96.7% of predictions deviating by no more than half a stage from their actual classifications when considering the best side of the samples. The average shelf-life estimates based on the attributed classifications were within 0.92 days of the actual shelf-life, whereas the predictions made by the models had an average deviation of 0.96 days from the actual shelf-life.
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  • 文章类型: Journal Article
    在常规疫情防控的背景下,本文考虑了一个两阶段的旅游供应链,包括一个通过广告吸引游客的景点和一个投资于服务改善和防疫的旅行社。通过建立旅游供应链的理论博弈模型,我们调查服务水平和广告水平如何影响零售价格,产品服务水平,和供应链的利润。结果表明,旅行社的服务水平可以提高消费者的偏好,扩大旅游产品的市场需求,和提高供应链效率,实现双赢,增加景区和旅行社的利润。零售商的价格,服务水平,晋升级别,和供应链利润都随着服务系数和广告系数的增加而增加,集中式模型的增加速度高于其他模型。可以为供应链企业制定协作战略和促进旅游供应链管理实践提供一些有价值的信息。
    In the context of regular epidemic prevention and control, this paper considers a two-stage tourism supply chain consisting of a scenic spot that attracts tourists through advertising and a travel agency that invests in service improvement and epidemic prevention. By establishing theoretical game models of a tourism supply chain, we investigate how the service level and advertising level can affect the retail price, product service level, and profits of the supply chain. The results show that the service level of travel agencies could improve consumers\' preferences, expand the market demand for tourism products, and improve the efficiency of the supply chain to achieve a win-win situation and increase the profits of the scenic spot and the travel agency. The retailer price, service level, promotion level, and supply chain profit all increase as the service coefficient and advertising coefficient increase, and the speed of the increase is higher for the centralized model than for other models. Some valuable information could be provided for supply chain enterprises to develop collaborative strategies and promote tourism supply chain management practices.
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  • 文章类型: Journal Article
    这项全面的文献计量研究调查了可持续供应链创新(SSCI)研究,检查它的演变,确定关键贡献者,揭示新兴趋势。使用健壮的Scopus数据集分析1158篇英语SSCI文章,揭示了值得注意的期刊,作者,机构,全球贡献。研究结果表明,自1999年以来,研究产出持续增加,过去十年中出现了显着增长。网络分析和基于密度的空间聚类确定了六个SSCI研究集群:商业中的可持续性和责任,导航创新和中断,可持续商业战略,环境可持续性和创新,可持续粮食系统和环境影响,和可持续的商业动态。这些集群突出了不断发展的可持续性和供应链管理(SCM)领域的多样性,有助于深入了解SSCI研究格局,并强调可持续性和SCM主题之间的相互联系,可能导致更全面的理论模型。此外,这种理解有助于企业预测新兴趋势并在SSCI中实施最佳实践。此外,认可活跃的机构和全球贡献者,为促进战略合作提供了实用的见解。
    This comprehensive bibliometric study investigates Sustainable Supply Chain Innovation (SSCI) research, examining its evolution, identifying key contributors, and unveiling emerging trends. Analyzing 1158 English-language SSCI articles using the robust Scopus dataset exposes noteworthy journals, authors, institutions, and global contributions. The findings suggest a consistent increase in research output since 1999, with a notable surge in the past decade. Network analysis and density-based spatial clustering identified six SSCI research clusters: Sustainability and Responsibility in Business, Navigating Innovation and Disruption, Sustainable Business Strategies, Environmental Sustainability and Innovation, Sustainable Food Systems and Environmental Impact, and Sustainable Business Dynamics. These clusters highlight the diverse nature of the evolving Sustainability and Supply Chain Management (SCM) field, contributing to a thorough understanding of the SSCI research landscape and emphasizing interconnections between sustainability and SCM themes, potentially leading to more comprehensive theoretical models. Furthermore, this understanding aids businesses in anticipating emerging trends and implementing optimal practices in SSCI. Moreover, recognizing active institutions and global contributors provides practical insights for fostering strategic collaborations.
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  • 文章类型: Journal Article
    外包是供应管理的重要工具。本研究考察了蒂尔基耶公共卫生部门当前的外包应用领域。给出了应用实例,连同外包领域的重要理论(交易成本经济学理论(TCE),核心能力理论(CCT),代理理论(AT),基于资源的观点理论(RBVT),关系理论(RT),和社会变革理论(SCT),土耳其公共采购立法,卫生部外包实践,和公立医院进行了讨论,以供回顾和举例说明。检查显示,外国对公共卫生部门的依赖正在增加,在一些采购过程中应用了不止一种理论。作为这项研究的结果,建议研究和比较哪些理论在其他国家的外包中脱颖而出。
    Outsourcing is an essential tool in supply management. This study examines the current outsourcing application areas of the public health sector in Türkiye. Application examples are presented, together with the prominent theories in outsourcing (Transaction Cost Economics Theory (TCE), Core Competencies Theory (CCT), Agency Theory (AT), Resource-Based View Theory (RBVT), Relational Theory (RT), and Social Change Theory (SCT), Turkish public procurement legislation, Ministry of Health outsourcing practices, and public hospitals are discussed for review and example. The examination shows that foreign dependency on the public health sector is increasing, and more than one theory is applied in some procurement processes. As a result of this study, examining and comparing which theories come to the fore in outsourcing in other countries is recommended.
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