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Investigating the Crash Protection Performance of a Medical Carrier Bag for Drone Transport 调查用于无人机运输的医疗载物袋的碰撞保护性能
Pub Date : 2024-03-15 DOI: 10.3390/logistics8010031
F. McLeod, Tom Cherrett, Andrew Oakey, Katherine Theobald, Timothy Waters, Matthew Grote, John Armstrong, Jack Denny, Alex Murray
Background: Drone transport regulations in Europe require a crash-protected container (CPC) to be used for the carriage of dangerous goods. With increasing interest in the use of drones for medical logistics, the motivation behind this research was to investigate whether the existing approved medical carriers could also pass as CPCs. To date, there has been little practical experimentation on or theoretical research into the crash protection performance of medical containers. Methods: Addressing this gap, this paper reports findings from a series of drop test experiments to investigate the crashworthiness of a standard medical carrier bag used by the National Health Service (NHS) in the UK. Th drop tests were performed from heights of up to 122 m using standard medical carriers containing bags of dyed saline to examine the robustness of the carrier and whether it could contain any leakages, a key requirement for transporting dangerous goods. Results: The tests found that the medical carrier failed on some drops, with the zipped lid being identified as the main weakness. Conclusions: A new understanding of the carrier’s terminal velocity, impact acceleration, and failure mechanisms were gained and subsequent strengthening and waterproofing remedial measures recommended. New insights and practical recommendations are provided relating to performing formal drop tests and how to conduct these using a drone.
背景:欧洲的无人机运输法规要求使用防撞集装箱(CPC)运输危险品。随着人们对使用无人机进行医疗物流的兴趣与日俱增,这项研究的动机是调查现有的经批准的医疗载体是否也能作为 CPC 使用。迄今为止,有关医疗集装箱碰撞保护性能的实际实验或理论研究还很少。方法:针对这一空白,本文报告了一系列跌落测试实验的结果,以调查英国国家卫生服务系统 (NHS) 使用的标准医疗携带袋的耐撞性。我们使用装有染色生理盐水袋的标准医疗包装袋从高达 122 米的高处进行了跌落测试,以检验包装袋的坚固性以及是否能防止任何泄漏,这是运输危险品的关键要求。结果:测试发现,医疗箱在某些跌落过程中失效,拉链盖是主要的薄弱环节。结论通过测试,我们对医疗箱的末端速度、撞击加速度和失效机制有了新的认识,并提出了后续的加固和防水补救措施建议。对如何进行正式的跌落测试以及如何使用无人机进行测试提出了新的见解和实用建议。
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引用次数: 0
A Multi-Objective Model for Designing a Sustainable Closed-Loop Supply Chain Logistics Network 设计可持续闭环供应链物流网络的多目标模型
Pub Date : 2024-03-13 DOI: 10.3390/logistics8010029
Mojtaba Arab Momeni, Vipul Jain, Mehdi Bagheri
Background: The growing concern for environmental and social issues has led to a focus on designing sustainable supply chains and increasing industrial responsibility towards society. In this paper, a multi-objective mixed-integer programming model is presented for designing a sustainable closed-loop supply chain. The model is aimed at the minimization of the total cost with the total used facilities, the negative environmental impacts, and the maximization of the positive social impacts. Methods: The epsilon-constraint method is utilized for solving the model and further extracting the Pareto solutions. Results: The result of the research clearly shows an optimal trade-off between the conflicting objectives, where, by paying more attention to the social and environmental aspects of sustainability, the total costs are increased or by optimizing the number of facilities, a better balance between the dynamics associated with the short-term and long-term goals is reached. The results of the sensitivity analysis also show that increasing the demand of the supply chain has the greatest impact on the supply chain costs compared to other objectives. Conclusions: Consequently, investigating such comprehensive sustainable objectives provides better insights into the impact of design variables on the expectations of stakeholders.
背景:随着人们对环境和社会问题的日益关注,设计可持续供应链和增强工业对社会的责任已成为人们关注的焦点。本文提出了一个设计可持续闭环供应链的多目标混合整数编程模型。该模型的目标是使总成本与所用设施总量、对环境的负面影响最小化,并使对社会的积极影响最大化。方法利用ε约束法求解该模型,并进一步提取帕累托解决方案。结果:研究结果清楚地表明,在相互冲突的目标之间可以做出最佳权衡,即通过更加关注可持续发展的社会和环境方面,增加总成本;或者通过优化设施数量,更好地平衡短期和长期目标的动态关系。敏感性分析的结果还表明,与其他目标相比,增加供应链需求对供应链成本的影响最大。结论:因此,对此类综合可持续目标进行调查,可以更好地了解设计变量对利益相关者期望的影响。
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引用次数: 0
Smart Ports in Industry 4.0: A Systematic Literature Review 工业 4.0 中的智能港口:系统性文献综述
Pub Date : 2024-03-11 DOI: 10.3390/logistics8010028
Antonios Paraskevas, Michael Madas, V. Zeimpekis, Konstantinos Fouskas
Background: Information and communication technologies (ICT) have introduced “smart” concepts across industries, including ports. Smart ports, leveraging IoT, cybersecurity, and cloud computing, are trending in maritime operations. They optimize data for informed decision-making, cutting costs, enhancing efficiency, mitigating risks, and fostering growth. Methods: To consolidate knowledge in this area, we are conducting a systematic literature review and meta-analysis using the PRISMA framework. Our goal is to synthesize existing insights, minimize biases, increase reliability, and effectively communicate our findings. To address the research needs mentioned, the current study focuses on implementing a systematic literature review (SLR). Results: The goals of this review are: (i) to present and describe the main categories and themes within the research topic, and (ii) to identify research gaps that will aid future research. Key findings include the identification and classification of current literature trends in the smart port performance evaluation framework and the examination of fundamental themes discussed within this area of research. Conclusions: In our review, we emphasize the smart port concept, clarifying its common interpretations amid the industry 4.0 revolution. We discuss recent advancements in emerging technologies and identify key challenges driving researchers’ exploration of the evolving smart port landscape.
背景:信息和通信技术(ICT)在包括港口在内的各行各业引入了 "智能 "概念。利用物联网、网络安全和云计算的智能港口是海事运营的发展趋势。它们可优化数据以做出明智决策、削减成本、提高效率、降低风险并促进增长。方法:为了整合该领域的知识,我们正在使用 PRISMA 框架进行系统的文献综述和荟萃分析。我们的目标是综合现有的见解,最大限度地减少偏差,提高可靠性,并有效地传播我们的研究结果。为了满足上述研究需求,本研究侧重于实施系统性文献综述(SLR)。结果本综述的目标是(i) 介绍和描述研究课题的主要类别和主题,以及 (ii) 找出有助于未来研究的研究缺口。主要研究成果包括对智能港口绩效评估框架内当前文献趋势的识别和分类,以及对该研究领域内讨论的基本主题的审查。结论:在综述中,我们强调了智能港口的概念,澄清了在工业 4.0 革命中对其的常见解释。我们讨论了新兴技术的最新进展,并确定了推动研究人员探索不断发展的智能港口领域的关键挑战。
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引用次数: 0
Exploring the Challenges of Industry 4.0 Adoption in the FMCG Sector: Implications for Resilient Supply Chain in Emerging Economy 探索快速消费品行业采用工业 4.0 的挑战:对新兴经济体弹性供应链的影响
Pub Date : 2024-03-05 DOI: 10.3390/logistics8010027
Md Shihab Shakur, Maishat Lubaba, Binoy Debnath, A. Bari, M. A. Rahman
Background: Fast-moving consumer goods (FMCG) supply chains are experiencing various challenges due to the interactions between consumers and decision-makers during physical distribution, manufacturing, wholesale and retail. One possible strategy to address these challenges for smoothing the supply chain (SC) and logistics operations is to adopt Industry 4.0 (I4.0) based technologies in the FMCG business processes. In this regard, digitalization and automation of the FMCG supply chain can be strengthened by the alluring properties of I4.0 technologies. Methods: This study identified nine significant challenges through a literature review and expert validation. Later, the challenges were evaluated using a novel multicriteria decision-making (MCDM) framework, the Bayesian best worst method (BWM). Results: The findings indicated that “requirement for substantial investment and resources”, “incompatible technological infrastructure” and “poorly structured value chain” are the most significant challenges to implementing I4.0 in the FMCG industry. Conclusions: The study is expected to significantly contribute to improving the FMCG supply chain’s resilience, sustainability, visibility, traceability and responsiveness. Additionally, the research can provide industrial practitioners valuable insights into implementing I4.0 in FMCG and similar sectors and thus promote SC sustainability and resilience in those industries.
背景:快速消费品(FMCG)供应链在实体分销、制造、批发和零售过程中,由于消费者和决策者之间的互动,正在经历各种挑战。要应对这些挑战,使供应链(SC)和物流运作更加顺畅,一个可行的策略是在快速消费品业务流程中采用基于工业 4.0(I4.0)的技术。在这方面,I4.0 技术的诱人特性可加强快速消费品供应链的数字化和自动化。方法:本研究通过文献综述和专家论证,确定了九项重大挑战。随后,使用新型多标准决策(MCDM)框架--贝叶斯最坏法(BWM)对这些挑战进行了评估。结果:研究结果表明,"需要大量投资和资源"、"技术基础设施不兼容 "和 "价值链结构不完善 "是快速消费品行业实施 I4.0 的最大挑战。结论:预计本研究将大大有助于提高快速消费品供应链的应变能力、可持续性、可视性、可追溯性和响应能力。此外,这项研究还能为行业从业者提供在快速消费品和类似行业实施 I4.0 的宝贵见解,从而促进这些行业的供应链可持续性和复原力。
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引用次数: 0
A Closed Queueing Networks Approach for an Optimal Heterogeneous Fleet Size of an Inter-Facility Bulk Material Transfer System 设施间散装物料转运系统异构车队规模最优化的封闭式排队网络方法
Pub Date : 2024-03-04 DOI: 10.3390/logistics8010026
Mohamed Amjath, L. Kerbache, James MacGregor Smith
Background: This study addresses optimising fleet size in a system with a heterogeneous truck fleet, aiming to minimise transportation costs in interfacility material transfer operations. Methods: The material transfer process is modelled using a closed queueing network (CQN) that considers heterogeneous nodes and customised service times tailored to the unique characteristics of various truck types and their transported materials. The optimisation problem is formulated as a mixed-integer nonlinear programming (MINLP), falling into the NP-Hard, making exact solution computation challenging. A numerical approximation method, a modified sequential quadratic programming (SQP) method coupled with a mean value analysis (MVA) algorithm, is employed to overcome this challenge. Validation is conducted using a discrete event simulation (DES) model. Results: The proposed analytical model tested within a steel manufacturing plant’s material transfer process. The results showed that the analytical model achieved comparable optimisation of the heterogeneous truck fleet size with significantly reduced response times compared to the simulation method. Furthermore, evaluating performance metrics, encompassing response time, utilisation rate, and cycle time, revealed minimal discrepancies between the analytical and the simulation results, approximately ±8%, ±8%, and ±7%, respectively. Conclusions: These findings affirm the presented analytical approach’s robustness in optimising interfacility material transfer operations with heterogeneous truck fleets, demonstrating real-world applications.
背景:本研究探讨了在一个具有异构卡车车队的系统中优化车队规模的问题,旨在最大限度地降低设施间物料转运业务的运输成本。研究方法使用封闭式排队网络(CQN)对材料转运过程进行建模,该网络考虑了异构节点以及根据各种卡车类型及其运输材料的独特性而定制的服务时间。优化问题被表述为混合整数非线性编程(MINLP),属于 NP-Hard,使得精确解的计算具有挑战性。为克服这一难题,我们采用了一种数值近似方法,即改进的顺序二次编程(SQP)方法和均值分析(MVA)算法。使用离散事件模拟 (DES) 模型进行了验证。结果:所提出的分析模型在一家钢铁制造厂的材料传输过程中进行了测试。结果表明,与仿真方法相比,分析模型实现了异构卡车车队规模的可比优化,并显著缩短了响应时间。此外,对包括响应时间、利用率和周期时间在内的性能指标进行评估后发现,分析和模拟结果之间的差异极小,分别约为±8%、±8%和±7%。结论:这些研究结果肯定了所介绍的分析方法在优化异构卡车车队的设施间物料转运操作方面的稳健性,展示了其在现实世界中的应用。
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引用次数: 0
Leveraging the Potential of the African Continental Free Trade Area: Logistics Challenges and Development Paths for Future Value Chains in Africa 发挥非洲大陆自由贸易区的潜力:非洲未来价值链的物流挑战和发展道路
Pub Date : 2024-02-29 DOI: 10.3390/logistics8010025
Benjamin Nitsche, H. Mensah, Frank Straube, Vianney Barigye
Background: With a rapidly growing young population, the African continent provides a high but barely exploited economic potential. Creating an African free trade zone is one of the African Union’s major initiatives to increase prosperity. Even though the AfCFTA has already come into force, its potential has not yet been fully exploited. This study investigates the logistics challenges associated with the AfCFTA and potential solutions and development paths for future value chains. Methods: The study builds upon a two-stage research process. First, applying the Nominal Group Technique with a group of 19 industry experts, current challenges and strategies to deal with them are conducted, and statements about potential development paths emerging from the AfCFTA are synthesized. Second, a questionnaire among additional industry experts is done to assess the results of the first stage. Results: The article sheds light on the barely untapped field of logistics challenges hindering the AfCFTA to leverage its potential. Strategy fields to address current challenges are explained, and the first indications of how the AfCFTA will shape supply chains in the mid-term are outlined. Conclusions: The article underlines the importance of logistics in the development of pan-African value chains and highlights potential development paths that may arise in the medium term. It also emphasizes the growing need for cooperation between politics, business, and research to overcome current logistics challenges and leverage the potential of the AfCFTA.
背景:非洲大陆拥有快速增长的年轻人口,经济潜力巨大,但尚未得到充分开发。建立非洲自由贸易区是非洲联盟促进繁荣的主要举措之一。尽管非洲自由贸易区已经生效,但其潜力尚未得到充分挖掘。本研究调查了与非洲自由贸易区相关的物流挑战,以及未来价值链的潜在解决方案和发展路径。研究方法:本研究基于两个阶段的研究过程。首先,对 19 位行业专家采用 "名义小组技术"(Nominal Group Technique),对当前面临的挑战和应对策略进行研究,并对非洲自由贸易区的潜在发展路径进行归纳。其次,对其他行业专家进行问卷调查,以评估第一阶段的结果。结果:文章揭示了几乎尚未开发的物流挑战领域,这些挑战阻碍了非洲自由贸易区发挥其潜力。文章解释了应对当前挑战的战略领域,并概述了非洲自由贸易区将如何在中期塑造供应链的初步迹象。结论:文章强调了物流在泛非价值链发展中的重要性,并着重指出了中期内可能出现的潜在发展路径。文章还强调,为克服当前的物流挑战并利用非洲自由贸易区的潜力,政界、商界和研究机构之间的合作需求日益增长。
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引用次数: 0
Critical Factors Affecting Trust in the Wine Supply Chain in Greece: A Grey DEMATEL Approach 影响希腊葡萄酒供应链信任度的关键因素:灰色 DEMATEL 方法
Pub Date : 2024-02-26 DOI: 10.3390/logistics8010024
Eleni-Efthymia Psychogiou, G. Tsoulfas
Background: Although trust is a well-studied topic in supply chain management, the case of the wine supply chain has not been adequately investigated. Methods: A hybrid approach combining qualitative and quantitative data analysis was adopted. The research was divided into two phases: (i) identification of critical factors based on the literature, and (ii) analysis of eight experts’ insights on those factors by employing the grey DEMATEL approach. Results: Fourteen factors that affect trust in the wine supply chain were identified based on the academic literature. From the analysis of the experts’ views, with the use of the grey DEMATEL approach, the factors were classified into two groups. The first group (nine factors) concerns the factors that affect the rest and the second group (five factors) concerns those which are affected by the former factors. Conclusions: The study of trust in the supply chain can be further improved by monitoring the trends in the sector and by engaging a wider audience of stakeholders. This approach can be applied to various regions in order to examine whether the situation is different from country to country. Stakeholders will have the necessary information to support their decisions and prioritize their objectives, aiming at improving the whole supply chain.
背景:尽管信任是供应链管理中一个研究得很透彻的课题,但对葡萄酒供应链的研究还不够深入。研究方法采用了定性和定量数据分析相结合的混合方法。研究分为两个阶段:(i) 根据文献确定关键因素;(ii) 采用灰色 DEMATEL 方法分析八位专家对这些因素的见解。结果:根据学术文献,确定了影响葡萄酒供应链信任度的 14 个因素。通过使用灰色 DEMATEL 方法分析专家的观点,这些因素被分为两组。第一组(九个因素)涉及影响其他因素的因素,第二组(五个因素)涉及受前一个因素影响的因素。结论可以通过监测该行业的趋势和让更多利益相关者参与进来,进一步改进对供应链信任的研究。这种方法可适用于不同地区,以研究各国的情况是否有所不同。利益相关者将获得必要的信息,以支持其决策并确定其目标的优先次序,从而改善整个供应链。
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引用次数: 0
Identifying Key Issues in Integration of Autonomous Ships in Container Ports: A Machine-Learning-Based Systematic Literature Review 识别集装箱港口自主船舶整合的关键问题:基于机器学习的系统文献综述
Pub Date : 2024-02-21 DOI: 10.3390/logistics8010023
Enna Hirata, Annette Skovsted Hansen
Background: Autonomous ships have the potential to increase operational efficiency and reduce carbon footprints through technology and innovation. However, there is no comprehensive literature review of all the different types of papers related to autonomous ships, especially with regard to their integration with ports. This paper takes a systematic review approach to extract and summarize the main topics related to autonomous ships in the fields of container shipping and port management. Methods: A machine learning method is used to extract the main topics from more than 2000 journal publications indexed in WoS and Scopus. Results: The research findings highlight key issues related to technology, cybersecurity, data governance, regulations, and legal frameworks, providing a different perspective compared to human manual reviews of papers. Conclusions: Our search results confirm several recommendations. First, from a technological perspective, it is advised to increase support for the research and development of autonomous underwater vehicles and unmanned aerial vehicles, establish safety standards, mandate testing of wave model evaluation systems, and promote international standardization. Second, from a cyber–physical systems perspective, efforts should be made to strengthen logistics and supply chains for autonomous ships, establish data governance protocols, enforce strict control over IoT device data, and strengthen cybersecurity measures. Third, from an environmental perspective, measures should be implemented to address the environmental impact of autonomous ships. This can be achieved by promoting international agreements from a global societal standpoint and clarifying the legal framework regarding liability in the event of accidents.
背景:通过技术和创新,自主航行船舶具有提高运营效率和减少碳足迹的潜力。然而,目前还没有对所有与自主航行船舶相关的不同类型的论文进行全面的文献综述,尤其是关于自主航行船舶与港口整合的论文。本文采用系统综述的方法,提取并总结了集装箱航运和港口管理领域与自动驾驶船舶相关的主要议题。方法:采用机器学习方法,从 WoS 和 Scopus 索引的 2000 多篇期刊论文中提取主要议题。结果:研究结果突出了与技术、网络安全、数据管理、法规和法律框架相关的关键问题,提供了与人工审阅论文不同的视角。结论:我们的搜索结果证实了几项建议。首先,从技术角度来看,建议加大对自主水下航行器和无人机研发的支持力度,建立安全标准,强制测试波浪模型评估系统,并促进国际标准化。其次,从网络物理系统角度,应努力加强自主船舶的物流和供应链,建立数据治理协议,严格控制物联网设备数据,加强网络安全措施。第三,从环境角度看,应采取措施解决自主船舶对环境的影响。为此,可以从全球社会的角度推动达成国际协议,并明确事故责任方面的法律框架。
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引用次数: 0
Functional Model of Supply Chain Waste Reduction and Control Strategies for Retailers—The USA Retail Industry 零售商减少和控制供应链浪费战略的功能模型--美国零售业
Pub Date : 2024-02-21 DOI: 10.3390/logistics8010022
Victory Ikpe, Mohammad Shamsuddoha
Background: The US retail sector grapples with persistent challenges related to supply chain waste, including inefficiencies, overstocking, and logistical barriers, necessitating targeted reduction strategies to mitigate escalating costs, environmental impacts, and diminished profitability. Methods: This study adopts a qualitative research method that draws on secondary data sources such as books, journals, articles, and websites to explore supply chain waste reduction strategies within the US retail industry. The study delineates various supply chain waste types, examines associated challenges and drivers, and proposes a simplified model tailored to the US retail landscape to enhance efficiency and sustainability through waste reduction and control. Results: The findings of this paper underscore the necessity for proactive measures within the US retail sector to minimize supply chain waste, optimize operations, and bolster environmental stewardship. Conclusions: By offering a comprehensive overview actionable insights and proposed reverse logistics model, this study aims to equip US retailers with strategies conducive to sustainable growth and heightened competitiveness while advancing the broader discourse on supply chain efficiency and waste reduction.
背景:美国零售业一直面临着供应链浪费的挑战,包括效率低下、库存过多和物流障碍,因此有必要采取有针对性的减少浪费策略,以缓解成本上升、环境影响和盈利能力下降的问题。研究方法本研究采用定性研究方法,利用书籍、期刊、文章和网站等二手数据来源,探讨美国零售业的供应链减废策略。研究划分了各种供应链废物类型,探讨了相关的挑战和驱动因素,并提出了一个适合美国零售业的简化模型,以通过减少和控制废物来提高效率和可持续性。研究结果:本文的研究结果表明,美国零售业有必要采取积极措施,最大限度地减少供应链浪费、优化运营并加强环境管理。结论:本研究旨在通过全面概述可操作的见解和建议的逆向物流模式,为美国零售商提供有利于可持续增长和提高竞争力的战略,同时推动有关供应链效率和减少浪费的广泛讨论。
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引用次数: 0
Digital Technology 4.0 on Halal Supply Chain: A Systematic Review 数字技术 4.0 对清真供应链的影响:系统回顾
Pub Date : 2024-02-18 DOI: 10.3390/logistics8010021
Budi Harsanto, Joval Ifghaniyafi Farras, E. Firmansyah, Mahir Pradana, Ardi Apriliadi
Background: The halal supply chain is a focused type of supply chain that ensures halal products throughout the entire process, from upstream to downstream. This paper aims to identify the innovative digital technology 4.0 utilized within the halal supply chain and understand its impact on firm performance, both financial and non-financial. Methods: A systematic review methodology was employed on the academic database of Scopus, resulting in 70 articles. We analyze the included articles with two main aspects that are of concern in this research, namely what technology is used in certain parts of the supply chain (procurement, manufacturing, distribution, and/or logistics), as well as the impact on firm performance (financial and/or non-financial); Results: Our findings reveal that the technologies widely used include blockchain technology, halal financial technology, and halal traceability system (RFID, IoT). Conclusions: Innovative digital technology has been implemented in the halal supply chain and has affected the firm’s performance both financially and non-financially. Future research is suggested to focus on investigations regarding holistic technology integration, quantitative analysis to measure the specific financial performance of firms adopting digital technologies, and the feasibility and importance of technology adoption for Small and Medium Enterprises (SMEs) in the halal industry.
背景:清真供应链是一种专注于确保从上游到下游整个过程中的清真产品的供应链。本文旨在确定清真供应链中使用的创新数字技术 4.0,并了解其对企业财务和非财务绩效的影响。研究方法在 Scopus 学术数据库中采用了系统综述方法,共收录了 70 篇文章。我们从本研究关注的两个主要方面对收录的文章进行了分析,即在供应链的某些环节(采购、制造、分销和/或物流)中使用了哪些技术,以及对企业绩效(财务和/或非财务)的影响;结果:我们的研究结果表明,广泛使用的技术包括区块链技术、清真金融技术和清真追溯系统(RFID、物联网)。结论创新数字技术已在清真供应链中实施,并对企业的财务和非财务业绩产生了影响。建议今后的研究重点放在有关整体技术整合的调查、定量分析以衡量采用数字技术的公司的具体财务业绩,以及清真行业中小型企业(SMEs)采用技术的可行性和重要性。
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引用次数: 0
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