Geographical Indications and Regional Public Brands of the Whole Rice Industry Chain in the Yangtze River Economic Belt

The Yangtze River Economic Belt is the main rice producing area in China.The rice industry chain is the agricultural pillar industry chain of this economic belt and it is the key to ensuring national food security and promoting comprehensive rural revitalization.This study discusses the entire rice industry chain in the Yangtze River Economic Belt from the national rice production functional zones,agricultural product quality and safety,national famous and excellent new agricultural products,national specialty agricultural products,"China s good grain and oil"products,and national advantageous characteristic industrial clusters.Then,it discusses the geographical indications of rice and its products in this economic belt from geographical indication products,geographical indication trademarks,agricultural geographical indications,geographical indication standards,geographical indication special indications,national geographical indication product protection demonstration zones,and Chinese geographical indication products protected by the European Union.In addition,it analyzes the five main problems between geographical indications and public brands,such as the limited use of geographical indication specific signs and the imperfect intellectual property protection system for geographical indications.Finally,it proposes eight strategies,including promoting the high-quality development of the entire rice industry chain,creating a geographical indication regional public brand for rice and its products,and implementing geographical indication protection projects.

Research on Alliance Decision of Dual-Channel Remanufacturing Supply Chain Considering Bidirectional Free-Riding and Cost-Sharing

This study delves into the formation dynamics of alliances within a closed-loop supply chain(CLSC)that encom-passes a manufacturer,a retailer,and an e-commerce platform.It leverages Stackelberg game for this exploration,contrasting the equilibrium outcomes of a non-alliance model with those of three differentiated alliance models.The non-alliance model acts as a crucial benchmark,enabling the evaluation of the motivations for various supply chain entities to engage in alliance formations.Our analysis is centered on identifying the most effective alliance strategies and establishing a coordination within these partnerships.We thoroughly investigate the consequences of diverse alliance behaviors,bidirectional free-riding and cost-sharing,and the resultant effects on the optimal decision-making among supply chain actors.The findings underscore several pivotal insights:(1)The behavior of alliances within the supply chain exerts variable impacts on the optimal pricing and demand of its members.In comparison to the non-alliance(D)model,the manufacturer-retailer(MR)and manufacturer-e-commerce platform(ME)alliances significantly lower both offline and online resale prices for new and remanufactured goods.This adjustment leads to an enhanced demand for products via the MR alliance’s offline outlets and the ME alliance’s online platforms,thereby augmenting the profits for those within the alliance.Conversely,retailer-e-commerce platform(ER)alliance tends to increase the optimal retail price and demand across both online and offline channels.Under specific conditions,alliance behavior can also increase the profits of non-alliance members,and the profits derived through alliance channels also exceed those from non-alliance channels.(2)The prevalence of bidirectional free-riding behavior largely remains constant across different alliance configurations.Across these models,bidirectional free-riding typically elevates the equilibrium prices in offline channel while negatively affecting the equilibrium prices in other channel.(3)The effect of cost-sharing shows relative uniformity across the various alliance models.Across all configurations,cost-sharing tends to reduce the manufacturer’s profits.Nonetheless,alliances initiated by the manufacturer can counteract these negative impacts,providing a strategic pathway to bolster CLSC profitability.

A Novel GLS Consensus Algorithm for Alliance Chain in Edge Computing Environment

Edge computing devices are widely deployed.An important issue that arises is in that these devices suffer from security attacks.To deal with it,we turn to the blockchain technologies.The note in the alliance chain need rules to limit write permissions.Alliance chain can provide security management functions,using these functions to meet the management between the members,certification,authorization,monitoring and auditing.This article mainly analyzes some requirements realization which applies to the alliance chain,and introduces a new consensus algorithm,generalized Legendre sequence(GLS)consensus algorithm,for alliance chain.GLS algorithms inherit the recognition and verification efficiency of binary sequence ciphers in computer communication and can solve a large number of nodes verification of key distribution issues.In the alliance chain,GLS consensus algorithm can complete node address hiding,automatic task sorting,task automatic grouping,task node scope confirmation,task address binding and stamp timestamp.Moreover,the GLS consensus algorithm increases the difficulty of network malicious attack.

Rethinking counterfeit medical supply chains:A critical review of the current literature

The medical device and pharmaceutical industries include a range of drugs,machines,instruments,and apparatuses used to prevent,diagnose,treat disease and illness,or aid in rehabilitation for patients,and are expected to grow substantially in the coming years.However,they are often targets of criminal organizations who manufacture and profit from fraudulent products,infiltrating the market with counterfeit medical supply chains.In this paper,we discuss and analyze the extent and nature of this problem and make suggestions for mitigation and prevention of this worldwide challenge.Ultimately,we argue that a holistic approach is essential to addressing this problem,including the creation and dissemination of reliable and good quality data,developing healthcare systems to be more robust,establishing/enhancing intra‐and international cooperation around this issue,and employing effective technological solutions,such as digital tracing.

Creating Inclusive Global Value Chains under the BRI from the Perspective of Public Goods Supply and Demand

Supply and demand of public goods provide a brand-new theoretical framework for research on the creation of inclusive global value chains(GVCs)under the Belt and Road Initiative(BRI).The supply of international public goods is an important positive variable for creating global value chains under the BRI,in which China and other developing countries involved,as well as their small and medium-sized enterprises(SMEs),are microscopic entities.When the BRI’s supply of instrumental,institutional,and conceptual international public goods is in equilibrium with the demand of GVC entities for public goods,the BRI creates necessary conditions for the extension of GVCs.GVCs created under the BRI are of great value in promoting inclusiveness,fair income distribution,balanced regional development,and the restructuring of international economic governance.Under the current GVC system,some developed countries have been wary about the BRI and even developed misgivings and biases.Nevertheless,developed countries may play an active role in bridging gaps in the BRI’s development and complement their respective strengths with developing countries for win-win cooperation.

A Blockchain-Based Authentication Protocol for WLAN Mesh Security Access

In order to deploy a secure WLAN mesh network,authentication of both users and APs is needed,and a secure authentication mechanism should be employed.However,some additional configurations of trusted third party agencies are still needed on-site to deploy a secure authentication system.This paper proposes a new block chain-based authentication protocol for WLAN mesh security access,to reduce the deployment costs and resolve the issues of requiring key delivery and central server during IEEE 802.11X authentication.This method takes the user’s authentication request as a transaction,considers all the authentication records in the mesh network as the public ledger and realizes the effective monitoring of the malicious attack.Finally,this paper analyzes the security of the protocol in detail,and proves that the new method can solve the dependence of the authentication node on PKI and CA.

突发公共卫生事件对中国与东盟制造业全球价值链影响研究

以中国与东盟为研究对象,测算其全球价值链参与指数,实证检验突发公共卫生事件对中国与东盟制造业全球价值链的影响。突发公共卫生事件对中国与东盟制造业全球价值链的负向影响显著,且资本密集型相较于劳动密集型和知识密集型制造业全球价值链更易受突发公共卫生事件影响。突发公共卫生事件对人力资本国际流动和国际资本流动的抑制是其阻碍中国与东盟制造业全球价值链参与度深化的内在机制,但自由贸易协定具有缓解作用。据此,提出完善突发公共卫生事件应对机制,加大科教投入,优化对外直接投资和完善营商环境等对策建议。

Consensus algorithm for medical data storage and sharing based on master–slave multi-chain of alliance chain

The safe storage and sharing of medical data have promoted the development of the public medical field.At the same time,blockchain technology guarantees the safe storage and sharing of medical data.However,the consensus algorithm in the current medical blockchain cannot meet the requirements of low delay and high throughput in the large-scale network,and the identity of the primary node is exposed and vulnerable to attack.Therefore,this paper proposes an efficient consensus algorithm for medical data storage and sharing based on a master–slave multi-chain of alliance chain(ECA_MDSS).Firstly,institutional nodes in the healthcare alliance chain are clustered according to geographical location and medical system structure to form a multi-zones network.The system adopts master–slave multi-chain architecture to ensure security,and each zone processes transactions in parallel to improve consensus efficiency.Secondly,the aggregation signature is used to improve the practical Byzantine fault-tolerant(PBFT)consensus to reduce the communication interaction of consensus in each zone.Finally,an efficient ring signature is used to ensure the anonymity and privacy of the primary node in each zone and to prevent adaptive attacks.Meanwhile,a trust model is introduced to evaluate the trust degree of the node to reduce the evil done by malicious nodes.The experimental results show that ECA_MDSS can effectively reduce communication overhead and consensus delay,improve transaction throughput,and enhance system scalability.

网络舆情视角下物流与供应链研究综述

互联网以及社交媒体的不断发展为网络舆情的产生提供了广阔的平台,包含的舆情信息涉及各个行业和领域,对于物流与供应链也造成了极大影响。文章基于知网上查阅到的涉及网络舆情的物流与供应链相关的文献,从网络舆情对供应链的影响、网络舆情视角下物流与供应风险识别与监测、网络舆情视角下物流与供应链策略与治理三个方面对已有文献进行了梳理分析,发现当前涉及网络舆情的物流与供应链相关研究所存在的不足之处,以期为学者对该领域的研究提供参考。

公共数据开发利用中公益性和盈利性的冲突及其应对

公共数据授权运营引入市场力量,探索用于产业发展、行业发展的公共数据有条件有偿使用,有助于释放市场创新活力,优化公共数据资源配置。如何建立激励机制平衡好公益性和盈利性,是促进公共数据资源开发利用的关键。公共数据公益性在于满足公众对公共资源公开、共享和使用的合法需求,以及享有公共数据价值释放后的分配权利。公共数据授权运营为公共数据市场化配置提供了可行路径,但市场主体的介入给这种做法贴上盈利性标签,引发公共数据公益性受损的担忧。借鉴数据价值链理论,构建公共数据公益价值链和盈利价值链的“双链”理论模型,发现“双链”间呈现出并存互补与此消彼长的复杂平衡关系。公益价值链通过保障公共数据的公益性,推动社会公平和共同富裕;盈利价值链则通过发挥市场主体的优势,提高公共数据的使用效率和经济效益。部分主体出于盈利的本能性考量致使公益价值链不活跃,长期以往将导致盈利价值链垄断,破坏双链(公益价值链和盈利价值链)平衡。从公平与效率的视角来看,双链平衡的理想状态是各类主体对参与双链不同生产活动拥有同等的意愿,并实现利益共享和风险共担。平衡好双链在于清晰划定公益价值链与盈利价值链的边界,并做好公益价值链反馈和补偿机制。实践中,我国公共数据公益性存在缺乏源头制度保障、公益性应用端运管机制有待完善与公共数据开放的反馈与补偿机制缺位的三大现实困境。当前,授权运营亟待以理论指导实践,从文化激励、制度激励和经济激励三个维度构建公共数据公益性开发利用激励机制。应从构建多元化公众参与模式、适度超前建设普惠性高质量开放数据集及基础设施、健全公共数据供给管理机制、加强公益性场景研发激励等方面,增强公共数据公益性保障,促进公共数据的合理利用和价值最大化。

国有企业对民营企业稳就业的影响--基于供应链的视角

在经济下行加剧和突发事件频出的背景下,国有企业作为“经济稳定器”如何筑牢民营企业“就业蓄水池”的关键作用愈发凸显。文章基于供应链的视角,选取2016—2022年中国A股上市民营企业及其供应链上下游企业的面板数据,采用固定效应模型实证分析了国有企业对民营企业稳就业的影响。研究发现,供应链中存在国有企业会显著促进上下游民营企业稳就业的效果。机制分析表明,上述效果主要通过民营企业调整业务模式、缓解融资约束和提高薪酬比例予以实现。异质性分析显示,资本密集型、高成长性、金融化程度低区域内的民营企业稳就业效果更明显。研究为政府如何稳定和保障就业提供企业层面的理论依据和行动指南。

基于区块链技术的高校图书馆数字资源共建共享研究

图书馆数字资源建设与管理面临着安全存储、版权保护、共建共享等诸多问题,区块链技术的独特优势为高校图书馆的资源建设与管理提供了一种创新性的解决方案。文章分析了目前高校图书馆数字资源建设现存问题,探析了区块链的技术架构及其与数字资源共建共享的契合度,构建了基于区块链的数字资源多元共建共享平台架构、联盟链架构、数字资源生命周期的信息安全保护机制,以期为高校图书馆数字资源共建共享新生态提供新路径。

基于区块链技术的档案数据治理策略研究

加强档案数据治理,推进档案治理体系和能力现代化是新时代档案工作的发展要求,也是提高档案数据价值、促进档案资源开发利用的重要途径。而区块链的去中心化存储访问、时间戳与数字签名技术、智能合约、共识机制等技术能确保档案数据真实、可靠、完整、安全、共享,适用于档案数据治理。文章分析了档案数据治理的内涵要求和意义,从顶层设计、基于档案数据联盟链的共享平台、法规标准建设、复合型人才培养等方面探索了档案数据治理策略,以期为基于区块链技术的档案数据治理的开展实施提供参考。

一种基于区块链的医疗数据隐私保护方法

为解决医疗数据的泄露或恶意被窜改以及医疗纠纷问题,提出一种基于区块链的医疗数据隐私保护方法。利用哈希算法加密患者的身份信息,治疗结果通过AES(advanced encryption standard)算法加密,而AES的密钥使用ECC(ellipse curve ctyptography)算法加密,所有的加密密钥、治疗结果、患者身份信息存储到联盟链上。采用群签名技术追溯签名医院,群管理员可以解密医疗数据,将其作为重要依据协助第三方解决医疗纠纷。效率分析表明,在安全性相同的情况下,该方法的加/解密效率比对比方案分别提高了14%和46%,同时分析了群签名各类算法的时间开销。通过与同类方法对比,该方法既可实现患者身份、医疗数据的分类隐私保护,又可保证交易存储开销是合理的,在医疗数据隐私保护领域具有一定的应用价值。

On the "chain system and grassroots sites of libraries" service system construction of public libraries in the western region of China:The example of the service system design of public libraries in Baoji

In the context of constructing national public cultural demonstration areas all over China and taking the system innovation history of Baoji as an example,this paper studies the path choices and service system design of the development of service system of public libraries in the western region of China.The results show that the key issue the China public library service system is facing is to promote system innovation;the 'chain system and grassroots sites of libraries' is a new synthesized innovative program on public library service system in accordance with the actual situations of Baoji area and other areas in the western region of China;the service system design of local public libraries should insist on seeking truth from facts,and carrying out an integrated,simple and feasible reform according to local conditions.

基于区块链的医联体护理协同管理系统的设计与实现

目的:设计一种基于区块链的医联体护理协同管理系统,为实现医联体护理协同管理提供技术支持。方法:该系统基于联盟链的5层技术架构进行设计,通过Linux系统搭建Fabric开发环境及网络配置,采用智能合约和Java语言软件开发工具包实现用户界面操作,使用Bootstrap和Jquery等技术搭建前端Web界面、Spring Boot搭建系统后端,并通过加密算法、哈希运算、智能合约、共识机制等技术实现联盟链成员管理、业务管理、数据存储与共享、患者病历管理及平台监管5个功能模块。结果:该系统完善了优质护理资源下沉与连续性护理机制,重构了积分激励机制,促进了护理共生网络协同进化,并使多节点交互,形成了协同合力。结论:该系统顺应全新模式下医联体整合型护理服务的发展趋势,对提升护理核心竞争力等方面起到重要推动作用,同时为构建适用于医联体场景的区块链方案提供了借鉴。

创新链视角下地方公益农业类科研机构创新效率测度研究

文章基于创新链理论,将公益农业类科研机构划分为科技研发阶段和成果转化阶段,采用DEA-Malquist指数法测算2011—2020年21家福建省属公益农业类科研机构不同阶段科技创新效率。结果表明:10年间,科技研发阶段和成果转化阶段的创新效率均表现为退步状态,科技研发阶段创新效率下降5.10%,成果转化阶段下降3.20%,可见两阶段均有较大提升空间;21家机构不同阶段创新效率差距明显,47.62%的机构科技研发效率处于退步状态,创新指数最大差距达0.756,38.10%的机构成果转化效率处于退步状态,创新指数最大差距达0.919;机构创新发展模式差距大,23.81%为集约型,9.52%为粗放型,28.57%为研发高效-转化低效型,38.10%为研发低效-转化高效型。在此基础上,结合加快推进科技政策创新、科技体制改革等外部因素,引导机构形成学科布局、技术积累与产业经济发展格局相适应科研组织模式等内部因素,分类提出有针对性的对策建议。

考虑韧性的两阶段应急物资供应链决策优化

为保障应急物资供应能力、降低供应链中断风险,使应急物资供应链在遭受自然灾害冲击时快速恢复到正常状态,将韧性概念引入应急物资供应链的决策中,在政企联合的基础上,采用多源采购和产能储备的组合韧性策略提升应急物资供应链的韧性。以供应链的总需求满足率最大化和总成本最小化为目标,构建一个均衡供应链韧性与成本的两阶段双目标混合整数优化模型,解决灾前政府的实物储备及灾后不同情境下应急物资的生产与分配问题;以洪涝灾害为背景,通过算例分析、对比分析和灵敏度分析验证了模型的有效性及可行性。结果表明:均衡韧性与成本的应急物资供应链模型的总需求满足率可达95.75%,比传统供应链模型提升15.30百分点,且总成本仅增加0.52%,比同等条件下仅以成本为导向的供应链的总需求满足率提升15.65百分点,且总成本仅增加3.70%;多源采购策略和产能储备策略二者同时采用比分别单独采用,能更大程度地保证应急物资供应链在平稳运行的基础上,既高效应对自然灾害又花费较低的成本。

网络舆情事件链演化分析

为防范舆情风险,分析网络舆情的细粒度演化,提出一种去冗余的衍生事件内容关联演化分析框架。通过文本挖掘技术从海量文本流中提取主要的衍生事件,将舆情内容压缩到人工可判读的数量级;利用词移距计算相邻两个时间片上的衍生事件相似度,构建反映演化关系的衍生事件链图。以“上海特斯拉自燃”事件为例进行事件链演化分析,得到微博网络舆情事件发展不同阶段涉事主体在各个衍生事件中的话题转移关系,最后鲁棒性分析的结果验证了该分析方法具有降低微博短文本冗余信息的能力,提高了事件演化关联识别分析的准确性。该研究方法为舆情事件的事后复盘、同类舆情事件的预判和介入、衍生事件的科学研判提供了决策支持。

突发公共卫生事件背景下医疗器械供应链脆弱性研究

突发公共卫生事件使医疗器械供应链表现出较强的脆弱性,有必要对脆弱性影响因素进行判断和评估。本文采用扎根理论与问卷调查相结合的方法对医疗器械供应链的脆弱性指标进行识别和筛选,基于2020年医疗器械的相关数据,采用组合赋权法对脆弱性指标赋权,运用云模型方法进行供应链脆弱性评价。评价结果显示,突发公共卫生事件等级是影响医疗器械供应链脆弱性的首要因素,医疗器械短期需求激增是造成供应链脆弱性增加的重要原因,事件冲击使供应链节点间的协同运作失调。因此,需要对突发公共卫生事件切实做好动态监控和管理工作,控制事件影响的时空范围,对需求变异需要建立必要的应急储备,并提高产能储备,建立动态柔性的应急供应链体系,增强供应链协调性。