Optimization Analysis of Reverse Logistics Models in Supply Chains from the Perspective of Sustainable Development

With the increasing focus on sustainable development goals,the critical role of reverse logistics in supply chains is becoming more evident.Reverse logistics not only enables resource recovery and reuse but also reduces environmental pollution and enhances economic efficiency.However,existing models face significant challenges related to recovery efficiency,cost control,and supply chain coordination.To address these challenges,this study proposes strategies to improve recovery and reuse efficiency,optimize logistics processes,enhance information sharing and collaboration,and encourage active participation from both businesses and consumers.These measures aim to improve the overall efficiency of reverse logistics and support the achievement of sustainable development goals.

Circulating Environmental Logistics Channel for Sustainable Society

This paper suggests the important role of trust as a governance mechanism for the circulating environmental logistics channel for reuse and recycle. Three types of the circulating logistics channels are discussed. The first is the recycle channel, where an actor (a firm) can govern total channel and its flow. In this channel, an actor bears the role of entrance and exit, and processes goods, resources, and waste. It may be called as the closed circulating logistics channel. The second is the recycle channel of kitchen garbage, which is governed by plural actors, such as firms, consumers, and governments, based on trust. This channel may be called as the open circulating logistics channel. The third is the recycle channel with intermediate traders and retailers. This channel may be called as the intermediate circulating logistics channel. It suggests to us that actors with autonomy and volunteerism can promote and make a successful circulating environmental logistic channel under the mutual trust and the cooperative role sharing.

Survey of Sustainable Logistics Services via Text Mining

Environmental sustainability has recently become more and more of a concern in logistics service industry. Although studies on sustainable initiatives among logistics service providers (LSP) have been increasing in the extant literature, still little investigation has been performed between LSPs and shippers. The present paper aims to demonstrate award-gained sustainable logistics service initiatives implemented during the period 2006-2017 in Japan. Different with questionnaire- and interview-based studies employed in literature, we use text mining technique to explore the co-occurring links of data, i.e. connections of the practices, to present the collaborative sustainability actions carried out through providing and requiring logistics services. In contrast to the research regarding green supply chain management focused on manufacturing perspective, this study is positioned in the dual sides of consignors and logistics business operators, to depict their combined effort in achieving sustainability goals. The results of the study showed that text mining technique is useful for summarizing and presenting data in this research area. However, much remains to be learned about how to deal with the data more means-end logically for revealing more indirect associations between the data.

Study on environmental logistics based on sustainable development: a case study of Shandong Province

Traditional logistics takes economic interest as the final goal. The frequency and changes of logistics activities have brought severe negative effects to the environment. At present, logistics industry has become the dominant industry in the third industries, and it is also the main driver for economic development. As more emphasis has been attached to the philosophy of sustainable development, low carbon emission and environmental protection, environmental logistics has become the trend of logistics management. In this paper, basic theories of logistics, development economics etc. are employed, the dialectical relationship between environmental logistics and sustainable development are analyzed through statistics, and proposals are put forward to develop environmental logistics.

Sustainable land management in Mali

This study uses logistic and Poisson regression models to examine the factors influencing the adoption of sustain-able land management(SLM)practices in Mali using two rounds of the nationally representative survey Enquête Agricole de Conjoncture Intégrée aux Conditions de Vie des Ménages.The SLMs considered include the applica-tion of organic fertilizers,the application of inorganic fertilizers,the use of improved seeds,and the practice of intercropping.On average the application of organic fertilizers(39.2%),and inorganic fertilizers(28.7%)are the most frequent SLM practices among Malian farmers,and between 2014 and 2017,we observe a decline in the practice of intercropping.The regression results show that farmers’adoption of different SLMs is significantly associated with biophysical factors(average temperature,climate type,plot size,plot shape,and location),de-mographic factors(age,gender,education,household size),and socioeconomic factors(number of cultivated plots,livelihood diversification,type of crop grown,market access,credit access,economic shocks,and social capital).Our findings suggest that policymakers and agricultural development agencies in Mali need to adopt a multidimensional policy framework to unlock the untapped potential of SLM practices in promoting sustainable agriculture and food security.

Optimization Model of Cold-Chain Logistics Network for Fresh Agricultural Products —Taking Guangdong Province as an Example

Cold-chain demand of fresh agricultural products is increasing in China, while network layout of cold-chain logistics is in disorder and its cost is huge. To address this problem, this paper casts an optimal model of cold-chain logistics network and tackles it with genetic algorithms. This optimal model takes running total cost of logistics network as the objective, and embeds a nonlinear mixed integer programming including two assignment issues. The model determines optimal layout and logistics management for pre-cooling stations and logistics center for fresh agricultural products. Our main contribution is to consider construction cost and operation cost of cold chain logistics simultaneously. Case study illustrates the effectiveness of the model.

Stackelberg Game-Based Resource Allocation with Blockchain for Cold-Chain Logistics System

Cold-chain logistics system(CCLS)plays the role of collecting and managing the logistics data of frozen food.However,there always exist problems of information loss,data tampering,and privacy leakage in traditional centralized systems,which influence frozen food security and people’s health.The centralized management form impedes the development of the cold-chain logistics industry and weakens logistics data availability.This paper first introduces a distributed CCLS based on blockchain technology to solve the centralized management problem.This system aggregates the production base,storage,transport,detection,processing,and consumer to form a cold-chain logistics union.The blockchain ledger guarantees that the logistics data cannot be tampered with and establishes a traceability mechanism for food safety incidents.Meanwhile,to improve the value of logistics data,a Stackelberg game-based resource allocation model has been proposed between the logistics data resource provider and the consumer.The competition between resource price and volume balances the resource supplement and consumption.This model can help to achieve an optimal resource price when the Stackelberg game obtains Nash equilibrium.The two participants also can maximize their revenues with the optimal resource price and volume by utilizing the backward induction method.Then,the performance evaluations of transaction throughput and latency show that the proposed distributed CCLS is more secure and stable.The simulations about the variation trend of data price and amount,optimal benefits,and total benefits comparison of different forms show that the resource allocation model is more efficient and practical.Moreover,the blockchain-based CCLS and Stackelberg game-based resource allocation model also can promote the value of logistic data and improve social benefits.

Quantum Secure Undeniable Signature for Blockchain-Enabled Cold-Chain Logistics System

Data security and user privacy are two main security concerns in the cold-chain logistics system(CCLS).Many security issues exist in traditional CCLS,destroying data security and user privacy.The digital signature can provide data verification and identity authentication based on the mathematical difficulty problem for logistics data sharing in CCLS.This paper first established a blockchain-enabled cold-chain logistics system(BCCLS)based on union blockchain technology,which can provide secure data sharing among different logistics nodes and guarantee logistics data security with the untampered blockchain ledger.Meanwhile,a lattice-based undeniable signature scheme is designed to strengthen the security of logistics data and user privacy against quantum attacks.This scheme is based on the lattice assumption,which can provide anti-quantum security for BCCLS in the future quantum computer age.It also establishes the undeniable mechanism that guarantees that the actual signer cannot deny a valid signature.Then,security proof shows that this undeniable signature scheme is correct and safe,and an efficiency comparison shows that it is more efficient than other schemes in similar literature.The performance evaluations of transaction throughput and latency show that the proposed BCCLS is efficient and practical.This work can improve the security and efficiency of logistics data management and promote the reform and development of the logistics industry.

The Construction of Cold-Chain Logistics Park of Agricultural Products in Sanshui from Two-stage Perspective

This paper firstly analyzed the operation model,market positioning,market demand forecast as well as market competition and challenges,park site selection,and transportation conditions for construction of the Cold-Chain Logistics Park of Agricultural Products in Sanshui.Then,it presented the overall planning scheme for construction of the Cold-Chain Logistics Park of Agricultural Products from a progressive two-stage perspective of overall planning and stage-by-stage implementation.The first stage mainly performs the function as a transaction platform of agricultural products and meanwhile provides customers with agricultural products storage and inspection services.The second stage adds value-added services such as distribution processing,modified atmosphere storage,freezing and refrigeration,market price information distribution,E-commerce of agricultural products and personalized services.It is expected to provide references and suggestions for the construction of the Cold-Chain Logistics Park of Agricultural Products.

Research on the Challenges of Cold-chain Logistics and the Combination Ways with Logistics O2O Operation

In this paper, we conduct research on challenges of cold-chain logistics and combination ways with logistics O2O operation. Because of the cold chain logistics to the high requirement of the equipment, technology as caused the high cost of cold chain logistics. In the overall cost of China’s logistics is on the high side, under the condition of low profi t, many enterprises to enter and don’t have much interest in the field of cold chain logistics. So-called cold chain logistics is frozen food in the production, storage, transportation, sales, remain the regulations to the consumption of each link in the cold chain environment, to ensure the food quality, reduce loss of food and system engineering. Under this basis, we propose the O2O based logistics pattern that will solve the issues well.

Study on Green Logistics Management in the Context of Sustained Development

With the increasingly deepened sustainable development concept in China, the logistics industry is undergoing transformation toward green logistic, requiring relevant logistics companies to fully strengthen green logistics management to accelerate the sustainable development of the logistics industry. This paper is focused on the analysis of green logistics management in the context of sustainable development. The meaning of green logistics management is firstly introduced, and then the importance of green logistics management is discussed. According to the current status of green logistics management, this paper proposes relevant management countermeasures, hoping to provide relevant personnel with certain reference.

Temporal-spatial Distribution Model of Cold Chain Logistics for Vegetables

[Objective] The aim was to study on temporal-spatial distribution model of cold chain logistics for vegetables. [Method] Broccoli was taken as an example. Detailedly, time-space distribution model of cold chain logistics for broccoli was proposed from standpoints of costs and benefits based on changes of time and space, and a comprehensive evaluation was made on timeliness, efficiency, risks, added- value of products and satisfaction of information in cold-chain logistics. [Result] The efficiency of cold chain logistics for vegetable can be greatly improved by temporal- spatial distribution model of cold chain logistics. [Conclusion] Costs and benefits of vegetables in temporal-apstial distribution could be evaluated by the model.

An Analysis of the Cold Chain Logistics concerning Agricultural Products in Chongqing City

Agriculture is the foundation of the national economy. On the one hand,there is increasing demand for fresh and safe refrigerated agricultural products; on the other hand,the current cold chain logistics is relatively underdeveloped and has many problems. This paper does a research on the major large-scale agricultural cold-chain logistics companies in Chongqing,and finds that cold-chain logistics in Chongqing has some problems such as incomplete industrial chain,relatively backward infrastructure,lack of talents,and high logistics costs. Some solutions to these problems are put forward: improving chain logistics infrastructure; strengthening personnel training; building information platform to create a new model of the cold-chain logistics in the Internet era; seeking government's policy and financial support.

基于多元Logistic模型与解释结构模型的乡村旅游可持续发展路径研究

在全面推进乡村振兴战略背景下,乡村旅游成为助推乡村经济高质量的有效路径。基于广西阳朔县23个景区的1005份问卷数据,采用多元Logistic回归模型和解释结构模型,探讨乡村旅游可持续发展因素及内在逻辑关系。研究发现:①旅游资源多样性、特色民俗文化、交通通达度、投资主体结构、管理者的战略视野和进取态度、国家和地方的政策环境都对乡村旅游的可持续性产生显著影响;②旅游资源的多样性和特色民俗文化是影响乡村旅游可持续发展的深层因素,交通通达度和投资主体结构为中层间接因素,而管理者的战略眼光和进取态度、国家及地方政策环境则是直接影响的表层因素;③乡村旅游的可持续发展是由客观环境因素和主观人为因素共同作用的复杂系统,在动态互动中形成了“旅游资源—发展条件—治理环境—乡村旅游的可持续发展”的传导关系。

Strategic Research on China＇s Enterprises Green Logistics

Based on the principle of sustainable development, this paper analyzes the connotation of green logistics, and the problems in the development and the system in China. It also puts forward the strategy in the implement of green logistics of China＇s enterprises.

Themes and Challenges in Making Urban Freight Distribution Sustainable

The purpose of this article is to explore and classify themes and challenges in making urban freight distribution sustainable.The study has a cross sectional design which started by a narrative literature review and analysis of a sample of related literature(like peer-reviewed articles and EU(European Union)documents).It ended with complementary discussion and recommendation for tackling the challenges.The results of the study illustrate eight and seven emerged categories of themes and challenges,respectively.It is concluded that there is great need for a packet of mixed strategies as well as a more holistic perspective where all actors together analyse and design future set-ups and operation of urban freight distribution.Such a holistic view is essential in order to:understand how different actors of the chain look upon sustainable urban freight distribution,avoid sub-optimal policies/governing rules,and suggest close-to-reality solutions for tackling the challenges.Freight distribution in urban areas is the main focus of this article.In addition,the study is demarcated to eco/environmental aspect of sustainability although it is impossible to completely exclude its interaction with economic and social aspects.The results offered in this paper provide a systematic structure for classifying issues related to sustainable urban freight distribution;something which will be beneficial for managers and policy-makers when they approach sustainable supply chain management challenges.This study provides a synthesized classification of themes and challenges which can guide researchers,industries,authorities,and policy-makers in future sustainability efforts.

广义Logistic模型的捕获优化问题

以王寿松所提出的广义 Ｌｏｇｉｓｔｉｃ模型为基础，讨论单种群生物资源的捕获优化问题，分析了被开发生物种群的动力学性质．在单位捕获努力量假定下，以最大可持续捕获量为管理目标，确定了线性捕获下的最优捕获策略，得到了最优捕获努力量，最大可持续收获及相应的最优种群水平的显式表达式，包括著名的Ｓｃｈａｅｆｅｒ模型作为特例，推广了相应的结果．

Logistic模型在旅游业持续发展中的应用——以山西省绵山风景区为案例

在分析旅游资源持续发展理论的基础上,运用Logistic模型,全面、客观地研究了旅游系统的可持续性,并建立了旅游系统持续发展模型和拟合方法,通过对山西省绵山风景区的实证研究,取得了较好的预测数据和很好的拟合结果,为科学地解决旅游区因游客严重超载所产生的一系列环境和社会问题,以及因游客严重不足而导致的旅游资源闲置和资金占用等经济问题提供了理论依据,在此基础上,提出了绵山旅游可持续发展、达到综合效益最优化的发展对策。

基于遗传算法的中国清洁能源需求Logistic预测模型

通过分析中国历年能源需求量变化规律,得出序列近10 a增长趋势与以往明显不同。为准确描述能源需求增长趋势,用整体序列和近10 a序列分别建立Logistic模型,再将两者耦合,并运用遗传算法优化模型参数,由此建立基于遗传算法的能源需求Logistic中长期预测模型。运用该模型对中国2020年能源需求量进行预测,并构建未来社会经济发展情景,结合碳减排目标推求清洁能源需求量,由此建立基于遗传算法的清洁能源Logistic中长期预测模型,并对中国2020年清洁能源需求量进行预测分析。结果表明,该模型物理概念明确,思路清晰,预测结果与中国能源规划目标相符,具有一定的合理性。

城市生态经济系统复合Logistic发展机制的探讨

提出和讨论了城市生态经济系统的复合Ｌｏｇｉｓｔｉｃ发展机制，它的形成、内涵及方程和曲线描述，分析了在这种机制作用下城市生态经济系统的演化规律，以及为保持该系统持续发展的对策措施．