【Author】 Erol, Ismail Neuhofer, Irem Onder Dogru, Tarik (Dr. True) Oztel, Ahmet Searcy, Cory Yorulmaz, Ali C.

【Source】TOURISM MANAGEMENT

【影响因子】12.879

【主题类别】

区块链应用-实体经济-旅游领域

【Abstract】The tourism industry is extremely important to the world economy; yet, the industry falls short when it comes to economic, social, and environmental issues. Blockchain as an information technology can be utilized to help solve these issues and establish sustainable tourism globally. However, the challenges to blockchain adoption in the tourism industry have not yet been examined systematically. The goal of this study, therefore, is three-fold: we first identify the challenges to blockchain using literature review and expert opinions. Then, we examine them using the proposed rough Interpretive Structural Modeling - Cross-Impact Matrix Multiplication based on expert judgments. Finally, we link these challenges to diffusion of innovation theory. The results suggest that "lack of technical maturity" and "lack of interoperability" are the most important challenges of blockchain in the tourism industry. The findings of the study support macro- and micro-level decision-making in tourism industry's prospective applications of blockchain.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Tourism industry; Blockchain; Diffusion of innovation; Rough-ISM; MICMAC

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 实证数据

【DOI】 10.1016/j.tourman.2022.104628

【Author】 Kim, Myeonghyun Lee, Joonyoung Oh, Jihyeon Park, Kisung Park, Youngho Park, Kilhoum

【Source】APPLIED ENERGY

【影响因子】11.446

【主题类别】

区块链应用-实体经济-能源领域

【Abstract】A blockchain-based energy trading system is a new paradigm of grid infrastructure, which allows that energy purchaser and seller can efficiently exchange the energy through two-way communication. However, because energy trading services are provided through public networks, these systems are vulnerable to potential security breaches. This paper proposed a privacy-preserving blockchain-based energy trading scheme for vehicle-to-vehicle to resolve the security issues of contemporary systems and provide secure energy trading services. The proposed scheme has high efficiency by applying decentralized identifiers and verifiable credentials technologies because the records of energy trading are not stored on blockchain and blockchain is only utilized in the validation of users. After completing the energy trading, the vehicle issues a verifiable credential to the counterpart to prove the legitimacy of the transaction. We also perform informal and formal security analysis to demonstrate its security and achieve secure mutual authentication, confidentiality, and session key security. Furthermore, we implement AVISPA simulation to show that our scheme is resistant to man-in-the-middle and replay attacks. As a result, the proposed scheme can be used in distributed smart grid environments.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Energy trading; Decentralized identifier; Blockchain; Verifiable credential

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 实验仿真

【DOI】 10.1016/j.apenergy.2022.119445

【Author】 Kumar, Shashank Raut, Rakesh D. Agrawal, Nishant Cheikhrouhou, Naoufel Sharma, Mahak Daim, Tugrul

【Source】TECHNOVATION

【影响因子】11.373

【主题类别】

区块链应用-实体经济-供应链

【Abstract】Blockchain (BLC) and the Internet of Things (IoT) are two emerging technologies that have become popular among practitioners for improving the transparency, adaptability, and safety of any industry. This is especially critical for food security, as COVID-19 highlighted the vulnerability of food supply chain (FSC). However, Indian organizations are experiencing problems in implementing the integrated form of BLC-IoT due to limited knowledge and insufficient research. The current study aims to propose a conceptual framework to reduce the impact of adoption barriers against BLC-IoT in FSC. Thirteen key barriers were identified after a thorough literature review and consultation with experts. The relationship among barriers was established using Inter-pretive structural modeling (ISM) and Decision-making trial and evaluation laboratory (DEMATEL) methods. The analysis shows that the lack of government regulation and workers' low competency significantly influence BLC-IoT adoption. The results also indicate the intricacy of decision-making by demonstrating that 9 of the 13 barriers were a part of the linkage cluster. The study outcome will help practitioners in developing and planning stra-tegies for effective adoption of BLC-IoT in FSC.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain; Decision-making trial andevaluation; laboratory; Food supply chain; Internet ofthings; Interpretive structural modeling

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 实验仿真

【DOI】 10.1016/j.technovation.2022.102589

【Author】 Paul, Samit Adhikari, Arnab Bose, Indranil

【Source】INFORMATION & MANAGEMENT

【影响因子】10.328

【主题类别】

区块链治理-市场治理-市场分析

【Abstract】We investigate the impact of the announcement of the COVID-19 pandemic on the market value and trading volume of supply chain finance (SCF) firms. Using an event study, we observe a significant valuation loss and higher trading volume of SCF firms. However, blockchain-enabled SCF firms are protected from such valuation loss and volatility in trading. We find that higher research and development (R&D) and capital expenditures by firms prevent the loss. Moreover, the firm value of blockchain-enabled SCF firms is impacted by their membership in a blockchain consortium and progress in blockchain implementation. Investors' confidence in blockchain reduces the market uncertainty.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain; COVID-19; Event study; Pandemic; Supply chain finance; Trading volume; Valuation

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 实证数据

【DOI】 10.1016/j.im.2022.103661

【Author】 Long, Huaigang Demir, Ender Bedowska-Sojka, Barbara Zaremba, Adam Shahzad, Syed Jawad Hussain

【Source】FINANCE RESEARCH LETTERS

【影响因子】9.848

【主题类别】

区块链治理-市场治理-市场分析

【Abstract】We examine the role of geopolitical risk in the cross-sectional pricing of cryptocurrencies. We calculate cryptocurrency exposure to changes in the geopolitical risk index and document that coins with the lowest geopolitical beta outperform those with high geopolitical beta. Our findings suggest that risk-averse investors require additional compensation as motivation to hold cryptocurrencies with low and negative geopolitical betas, and they are willing to pay a premium for assets with high and positive geopolitical betas. The effect cannot be explained by known return predictors and is robust to many considerations.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Cryptocurrencies; The cross-section of returns; Asset pricing; Geopolitical risk; Return predictability

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 实证数据

【DOI】 10.1016/j.frl.2022.103131

【Author】 Ciner, Cetin Lucey, Brian Yarovaya, Larisa

【Source】FINANCE RESEARCH LETTERS

【影响因子】9.848

【主题类别】

区块链治理-市场治理-数字货币

【Abstract】We consider a relatively large set of predictors and investigate the determinants of cryptocurrency returns at different quantiles. Our analysis exclusively focuses on the highly volatile period of COVID-19. The innovation in the paper stems from the fact that we employ the LASSO penalty in a quantile regression framework to select informative variables. We find that US government bond indices and small company stock returns, a new predictor introduce in this study, signifi-cantly impact the tail behavior of the cryptocurrency returns.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】LLASSO; Quantile regression; Cryptocurrency; COVID-19

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 实证数据

【DOI】 10.1016/j.frl.2022.102990

【Author】 Mansour, Romany F.

【Source】EXPERT SYSTEMS WITH APPLICATIONS CCF-C

【影响因子】8.665

【主题类别】

区块链应用-实体经济-物流领域

【Abstract】Industry 4.0 has the potential to create new industrial revolution by offering intelligent, secure, independent, and self-adaptive Industrial Internet of Things (IIoT) networks. These IIoT nodes can be grouped via the clustering process into clusters to enhance networks' efficiency, lifetime, and scalability. However, it offers several benefits but still security is a primary concern, which can be resolved by Intrusion Detection Systems (IDS) and blockchain technology. Therefore, an effective Blockchain-Assisted Cluster-based Intrusion Detection System for IIoT, called the BAC-IDS technique has been devised. The proposed BAC-IDS model aims to cluster the IIoT devices for detecting the intrusions and enabling blockchain-based secure data transmission. BAC-IDS technique involves Harris Hawks Optimization (HHO)-based clustering technique to choose the Cluster Heads (CH) effectively and construct clusters accordingly. In addition, Chicken Swarm Optimization with Gated Recurrent Unit-based intrusion detection is also followed to determine the presence of intrusions in IIoT environment. Moreover, blockchain technology enables secure data transmission from Cluster Members (CMs) to CHs. The design of HHO clustering and CSO-based hyperparameter optimization for the IIoT environment represents the novelty of the proposed work. A wide range of simulations are performed under different aspects. From experimental results, it has been observed that the BAC-IDS approach has gained a TNR (99.97%), AUC (99.96%), precision (99.99%), recall (99.97%), accuracy (99.98%), F-score (99.98%) and error rate (0.03) on NSL-KDD2015 dataset. Further, on CICIDS 2017 dataset, it has obtained TNR (99.96%), AUC (99.98%), precision (99.96%), recall (99.98%), accuracy (99.97%), F-score (99.96%), and error rate (0.04). The experimental results highlight the supremacy of the proposed BAC-IDS technique over current state-of-art techniques.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Industrial IoT; Clustering; Intrusion detection system; Deep learning; Blockchain; Cluster Heads

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 实验仿真

【DOI】 10.1016/j.eswa.2022.117995

【Author】 Bhubalan, Kesaven Tamothran, Arularasu Muthaliar Kee, Seng Hon Foong, Shin Ying Lam, Su Shiung Ganeson, Keisheni Vigneswari, Sevakumaran Amirul, Al-Ashraf Ramakrishna, Seeram

【Source】ENVIRONMENTAL RESEARCH

【影响因子】8.431

【主题类别】

区块链应用-实体经济-环境领域

【Abstract】Blockchain-integrated waste management and circular economy are emergent concepts that target minimising waste generation and fluctuations of resource commodity. Blockchain can support a circular economy and green principles by enabling information transparency, reliability and automation. Redesigning plastics by molecular tagging is the way forward to ensure synthetic plastics are kept in an infinite loop and support closed-loop recycling. The involvement of major corporations in product development and blockchain-integrated closed-loop recycling has resulted in several successful green chemical approaches toward circular plastic economy projects. Government policies and legislations are progressively supporting plastic redesigning for improving the plastic circular economy. Nevertheless, a systematic approach is required in addressing blockchain technology and plastic redesigning to effectively leverage circular economy initiatives.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain technology; Plastic circular economy; Waste management; Sustainability

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 观点阐述

【DOI】 10.1016/j.envres.2022.113631

【Author】 Yahaya, Adamu Sani Javaid, Nadeem Zeadally, Sherali Farooq, Hassan

【Source】VEHICULAR COMMUNICATIONS

【影响因子】8.373

【主题类别】

区块链应用-实体经济-通信领域

【Abstract】In the study, we propose a double blockchain based vehicular system for optimizing data storage and securing communication in Internet of Vehicles (IoV) networks. We propose an incentive mechanism and a reputation system to reduce the selfish and distrustful behavior of IoV nodes. Moreover, we propose an encryption technique to protect the proposed system from passive and active attacks. The proposed technique is a hybrid of Rivest Shamir Adleman and Advanced Encryption Standard-256 (AES-256+RSA). We use this hybrid approach to efficiently and secretly share the users' secret keys. To address the issues of high resource consumption and communication delay, we propose a cache memory technique for miner and controller nodes. In addition, we propose an authentication mechanism to remove malicious nodes from the system. The simulation results depict that our system provides security, scalability, optimized data storage, node's trustworthiness, and transparent data sharing. (C) 2022 Elsevier Inc. All rights reserved.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain; Double spending attack; IoT; IoVs; WSN

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 实验仿真

【DOI】 10.1016/j.vehcom.2022.100502

【Author】 Tran, Nguyen Khoi Babar, M. Ali Walters, Andrew

【Source】JOURNAL OF NETWORK AND COMPUTER APPLICATIONS CCF-C

【影响因子】7.574

【主题类别】

区块链技术-核心技术-扩展方案

【Abstract】A blockchain network is a distributed system established by mutually distrusting participants to operate a blockchain, enabling them to manage critical information such as account balances or asset ownership without a centralised third party. Blockchain network deployment and evaluation have become prevalent due to the emerging blockchain use cases by enterprises, governments, and Internet of Things (IoT) applications, which demand private blockchains rather than participating in public ones. A blockchain network architecture drives deployment and evaluation activities. Nevertheless, practitioners must learn and perform error-prone activities to transform architecture into a blockchain network and evaluate it. Therefore, it is beneficial to automate these activities so that practitioners can focus on the architecture design, a valuable and hard-to -automate activity. The key challenges of such an automation framework are keeping up with the advances in blockchain technologies and the increasing complexity of blockchain network architecture. This paper proposes NVAL, a software framework that implements a novel architecture-driven, community-supported approach to automate blockchain network deployment and evaluation. NVAL accepts blockchain network architecture as input. It supports complex multi-channel blockchain networks, an increasingly prevalent architecture for private blockchain. The framework keeps up with blockchain technologies by leveraging platform-specific automation programmes developed by a practitioner community via runtime composition to handle new networks. We evaluated NVAL with a case study and showed that the framework requires only seven automation programmes to deploy 65 blockchain networks with 12 diverse architectures and generate 295 evaluation datasets. Furthermore, it consumes only 95.5 ms to plan and orchestrate the deployment and evaluation, which is minuscule compared to the total time required for deploying and benchmarking a blockchain network.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain; Distributed Ledger; Deployment; Evaluation; Automation; Framework

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 理论模型

【DOI】 10.1016/j.jnca.2022.103460

【Author】 Lu, Wei Jiang, Yu Chen, Zhixin Ji, Xiang

【Source】COMPUTERS & INDUSTRIAL ENGINEERING

【影响因子】7.180

【主题类别】

区块链应用-实体经济-供应链

【Abstract】The ongoing boom in platform retailing has been accompanied by widespread counterfeiting. Blockchain technology has attracted much attention as a way to combat this practice. We consider a supply chain system consisting of one brand seller, one counterfeiter and one platform retailer and examine how blockchain adoption affects the decisions of firms in this system and the performance of the whole system. We show that the platform's use of blockchain reduces both products' selling price and increases the brand seller's demand while also increasing the counterfeiter's demand under certain conditions when a wholesale contract is adopted. Moreover, we find that blockchain technology could be an effective anticounterfeit tool but that the platform does not always use it, even if its implementation is costless. The platform is more willing to use blockchain when imitation good's quality is relatively low, and an agency contract can better incentivize the platform to deploy blockchain than a wholesale contract if the commission fee is large. Finally, consumer surplus and social welfare may decrease after the platform adopts blockchain, but the whole supply chain system can perform better through the platform's blockchain implementation if the imitation good's quality and consumers' trust in the platform are low.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Supply chain system; Blockchain technology; Counterfeit; Distribution contract

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 观点阐述

【DOI】 10.1016/j.cie.2022.108408

【Author】 Xu, Jinying Lu, Weisheng Wu, Liupengfei Lou, Jinfeng Li, Xiao

【Source】SAFETY SCIENCE

【影响因子】6.392

【主题类别】

区块链应用-实体经济-建筑领域

【Abstract】It is an unfortunate fact that, in pursuing occupational safety and health (OSH), privacy as a core value is often traded away. Blockchain technology has unexplored potential in tackling this dilemma through its cryptography, decentralization, and consensus mechanisms. This research aims to develop a blockchain-enabled framework to balance privacy protection and advancement of OSH management by focusing on the construction industry. It does so by adopting design science research as the overall methodology, under which specific methods such as literature review, industrial engagement, brainstorming, cross-sectoral learning, case study, and prototyping and experiment are organized. Underpinning the framework is the principle that personal privacy data should be encrypted, classified, and safeguarded in decentralized repositories while non-sensitive safety behavior data should be readily accessible to enable OSH management. Based on the principle, a blockchain-enabled deployment framework of privacy protection in OSH management named P-OSH is proposed. Its functional layers and protocols are elaborated. Through a series of prototyping and experiments in a modular construction project case study, it is found out that the framework, with proper deployment, can be developed into an operable P-OSH system to minimize the risk of infringing workers' privacy without undermining OSH management. The major contributions of this research are: (a) highlighting the importance of privacy protection while pursuing OSH excellence; (b) devising an information channeling mechanism; and (c) developing a deployable P-OSH framework. The research lays a steppingstone for further studies and practical explorations that apply blockchain technology in OSH management without sacrificing privacy.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain; Occupational health and safety; Privacy; Consortium blockchain framework; Construction worker

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 理论模型

【DOI】 10.1016/j.ssci.2022.105860

【Author】 Holden, Richard Malani, Anup

【Source】MANAGEMENT SCIENCE FT50 UTD24

【影响因子】6.172

【主题类别】

区块链治理-市场治理-市场分析

【Abstract】Blockchain technology offers firms a novel method of raising capital via so-called initial coin offerings (ICOs). In the most common form of an ICO, a firm creates digital assets called "utility tokens" that are tracked on a blockchain-based ledger, requires that its product be purchased only with those tokens, and then, raises capital by selling these tokens to investors prior to creating any saleable product. (Some nonfungible tokens (NFTs) may function in a similar fashion.) We model a fundamental paradox with the use of ICOs involving utility tokens and similar structures. To increase capital raised by an ICO, the firm may attempt to reduce blockchain operating costs, thus expanding the quantity of goods sold. However, because of the mechanics of miner compensation, doing so increases the number of utility token transactions that take place in any time interval (i.e., increases token velocity and thus, the effective supply of tokens). By Fisher's equation, this lowers the dollar value of tokens and the amount investors are willing to pay for them. We show that this paradox limits the value of utility token ICOs as an alternative to traditional financing options. We discuss alternatives to and variations of utility tokens that can mitigate the conundrum and promote ICOs as a more viable form of financing.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】blockchain; initial coin offerings; security token offerings; cryptoeconomics; utility token; equation of exchange; transactions costs; cryptocurrencies

【发表时间】

【收录时间】2022-08-22

【文献类型】 实证数据

【DOI】 10.1287/mnsc.2022.4314

【Author】 Luong, Nguyen Cong Anh, Tran The Xiong, Zehui Niyato, Dusit Kim, Dong In

【Source】COMPUTER NETWORKS CCF-B

【影响因子】5.493

【主题类别】

区块链应用-实体经济-通信领域

【Abstract】In this paper, we develop a new framework called blockchain-and backscatter-aided Internet of Things (IoT) system. In the framework, IoT devices as secondary transmitters transmit their sensing data to a secondary gateway by using an RF-powered backscatter cognitive radio technology. The data collected at the gateway is then sent to a blockchain network for further verification, storage and processing. As such, the framework enables an IoT system to simultaneously optimize the spectrum usage and maximize the energy efficiency. Moreover, the framework ensures that the data collected from the IoT devices is verified, stored and processed in a decentralized but in a trusted manner. To achieve the goal, we formulate a stochastic optimization problem for the gateway under dynamics of the primary channel, uncertainty of the IoT devices, and unpredictability of the blockchain environment. In the problem, the gateway jointly decides (i) time scheduling, i.e., the energy harvesting time, backscatter time, and transmission time, among the IoT devices, (ii) the blockchain network, and (iii) a transaction fee rate to maximize the network throughput while minimizing the cost. To solve the stochastic optimization problem, we then propose to employ, evaluate, and assess a Deep Reinforcement Learning (DRL) algorithm with Dueling Double Deep Q-Networks (D3QN) to derive the optimal policy for the gateway. Simulation results clearly show that the proposed solution outperforms the conventional baseline approaches such as the conventional Q-Learning algorithm and non-learning algorithms in terms of network throughput and convergence speed. Furthermore, the proposed solution guarantees that the data is stored in the blockchain network at a reasonable cost.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Cognitiveradio; Ambientbackscatter; RFenergyharvesting; Blockchain; Timescheduling; Deepreinforcementlearning; IoT

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 实验仿真

【DOI】 10.1016/j.comnet.2022.109135

【Author】 De Carvalho, Paulo R. V. Naoum-Sawaya, Joe Elhedhli, Samir

【Source】APPLIED MATHEMATICAL MODELLING

【影响因子】5.336

【主题类别】

区块链应用-实体经济-供应链

【Abstract】Supply chains have often benefited from breakthroughs in information technology. Blockchain, in particular, is a recent technology that is promising to revolutionize the way supply chains are designed and operated. This paper proposes a framework to optimize the adoption of blockchain jointly with the design of the supply chain network. A new form of product differentiation is enabled through blockchain adoption where blockchain-certified products are sold at a premium price to a growing segment of customers. The proposed framework allows supply chain managers to monetize data which has traditionally been used to improve supply chain efficiency. The framework is evaluated using a realistic case study inspired by the global supply chain of fresh-cut flowers. The results show that by strategically using blockchain at certain locations in the supply chain network, significant cost savings are realized compared to fully deploying blockchain throughout the supply chain. These cost savings lead to increased demand, better consumer surplus, and higher supply chain profit. Furthermore, the proposed data-enabled product differentiation leads to fresher products in the market.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Routing; Supply chain network design; Blockchain; Fresh -cut flowers

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 理论模型

【DOI】 10.1016/j.apm.2022.06.011

【Author】 Zhao, Sixiang Wang, Yachao Jiang, Zhenyu Hu, Tianshu Chu, Fengming

【Source】ENERGY REPORTS

【影响因子】4.937

【主题类别】

区块链应用-实体经济-能源领域

【Abstract】As a representative of clean energy, photovoltaic is expected to become a major supplier of electricity in the future. The combination of electric vehicle (EV) battery and charging station provides a feasible way to promote the effective consumption of photovoltaic. However, the efficiency of mobile power supply is limited by information asymmetry and security problems, and it is urgent to optimize the distribution process. Firstly, the article introduces the energy blockchain to improve the security level of electricity transaction, and designs the photovoltaic-energy storage-charging supply chain. Secondly, based on the selected road network and the actual situation of EV mobile power emergency distribution, the distribution logistics network with 50 distribution points is built. Thirdly, taking the delivery time and comprehensive cost as objective functions, the mathematical model of emergency distribution route optimization for EV mobile power supply is established, and the adaptive NSGA-II algorithm is adopted for example analysis. Finally, the parameter variation of NSGA-II and comparison with two algorithms of GA and MOPSO are carried out to validate the feasibility and applicability of proposed method. The purpose of the research is to quickly and effectively select the optimal distribution route of mobile power supply from many roads by maximizing customer demands and reducing costs, so as to promote the photovoltaic consumption. (C) 2022 The Author(s). Published by Elsevier Ltd.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Energy blockchain; Photovoltaic-energy storage-charging supply chain; Electric vehicle; Distribution optimization of mobile power; NSGA-II

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 实证数据

【DOI】 10.1016/j.egyr.2022.05.010

【Author】 Yavaprabhas, Kongmanas Pournader, Mehrdokht Seuring, Stefan

【Source】ANNALS OF OPERATIONS RESEARCH

【影响因子】4.820

【主题类别】

区块链应用-实体经济-供应链

【Abstract】This paper aims to investigate the impact of blockchain application on trust levels in supply chains. Through the systematic review of the relevant literature, three dimensions of trust, i.e., the trustor-trustee perspective, forms of trust, and time orientation, are investigated. Our findings show that, first, there are three pairs of trustors and trustees involved in blockchain implementation: (a) the user and the blockchain, (b) two supply chain partners, and (c) the consumer/public and a supply chain unit. Second, the two forms of trust, namely cognition-based and institution-based trust, are likely to be enhanced by blockchain execution, while affect-based trust may not be directly impacted by the technology. Third, the presence of blockchain technology would facilitate swift trust-building between unknown supply chain partners under specific circumstances. Moreover, we also find contradicting assertions among scholars on the implications of blockchain for trust in supply chains. While some studies pointed out that blockchain will enable a trustless trusted scheme, others expected the reinforcement of interorganizational trust. To test these assertions, we develop the blockchain-entrusted supply chain models to present the three-step process of how trust is developed through the blockchain and diffused to supply chain partners and external stakeholders.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain; Trust; Supply chain; Systematic review

【发表时间】

【收录时间】2022-08-22

【文献类型】 观点阐述

【DOI】 10.1007/s10479-022-04868-0

【Author】 Mirsaraei, AmirHossein Ghafouri Barati, Ali Barati, Hamid

【Source】JOURNAL OF PARALLEL AND DISTRIBUTED COMPUTING CCF-B

【影响因子】4.542

【主题类别】

区块链技术-协同技术-物联网

【Abstract】Today, many users' extensive use of the Internet of Things (IoT) has made authentication an inevitable issue in the IoT. The currently existing authentication methods are subjected to many challenges by various factors such as the limited resources, the lack of authorization, and the need for a light-weighted authentication process. Therefore, it is essential to provide a security framework and protect the users' privacy at the lowest cost. This paper proposes a three-factor-based authentication scheme, called defense-in-depth, for the IoT environments on the blockchain platform. The proposed protocol applies mutual authentication with user authorization using smart card registration on a private blockchain without the need for a trustable server. The use of Elliptic-Curve Cryptography (ECC) and the analysis of the security of the proposed protocol using AVISPA tool, formal/informal security analysis altogether indicate that the proposed scheme is more secure and efficient in terms of computational and communications costs. (C) 2022 Elsevier Inc. All rights reserved.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Internet of Things; Security; Authentication; Elliptic-Curve Cryptography(ECC); Blockchain

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 理论模型

【DOI】 10.1016/j.jpdc.2022.06.011

【Author】 Halfpenny, William Baxter, Sally L.

【Source】CURRENT OPINION IN OPHTHALMOLOGY

【影响因子】4.299

【主题类别】

区块链应用-实体经济-医疗领域

【Abstract】Purpose of review The purpose of this review is to provide an overview of updates in data standardization and data privacy in ophthalmology. These topics represent two key aspects of medical information sharing and are important knowledge areas given trends in data-driven healthcare. Recent findings Standardization and privacy can be seen as complementary aspects that pertain to data sharing. Standardization promotes the ease and efficacy through which data is shared. Privacy considerations ensure that data sharing is appropriate and sufficiently controlled. There is active development in both areas, including government regulations and common data models to advance standardization, and application of technologies such as blockchain and synthetic data to help tackle privacy issues. These advancements have seen use in ophthalmology, but there are areas where further work is required. Summary Information sharing is fundamental to both research and care delivery, and standardization/privacy are key constituent considerations. Therefore, widespread engagement with, and development of, data standardization and privacy ecosystems stand to offer great benefit to ophthalmology.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】artificial intelligence; interoperability; ophthalmology; privacy; standards

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 理论模型

【DOI】 10.1097/ICU.0000000000000878

【Author】 Celik, Dogan Meral, Mehmet Emin Waseem, Muhammad

【Source】ELECTRIC POWER SYSTEMS RESEARCH

【影响因子】3.818

【主题类别】

区块链应用-实体经济-能源领域

【Abstract】Taking into consideration of substantial role of energy system and sustainable development goals (SDGs) in modern society, it is critical to analyse current situation and forthcoming renewable energy development strategies under the impact of COVID-19. For this purpose, this paper provides significant new insights to assess effective approaches, opportunities, challenges and future potential capabilities for the development of energy systems and SDGs under on-going pandemic and in case of a future global crisis. The digital energy systems with Industry 4.0 (I4.0), which provide noteworthy solutions such as enhancing energy efficiency policy, providing clean, secure and efficient energy and achieving SDG targets, has been discussed and evaluated. Integration of the smart grid (SG) architecture with blockchain-Internet of Things (IoT)-based technologies is also offered. Alongside the various discussions, short-term, mid-term and long-term plans have been suggested in determining the well-defined renewable energy development and SDGs targets, struggling with climate change, transition to a more sustainable energy future and reaching global net-zero emissions. To achieve SDGs and provide more strong and sustainable energy systems under the continuing pandemic and in case of potential risk of forthcoming global crisis, this paper reveals significant perceptions that inform politicians and legislators in performing successful policy decisions.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Digital energy system; Sustainable development goal; Smart grid; Blockchain technology; Industry 4; 0; COVID-19

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 综述

【DOI】 10.1016/j.epsr.2022.108251

【Author】 Nicolas, Maxime L. D.

【Source】PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS

【影响因子】3.778

【主题类别】

区块链治理-市场治理-市场分析

【Abstract】In this paper, we estimate an agent-based model (ABM) to investigate herding behaviors in the formation of investor sentiment. We formalize a simple opinion dynamics model in a social network framework and rely on a numerical method to estimate its parameters. We derive a sentiment proxy from the weekly aggregation of online messages concerning 15 US stocks and 5 cryptocurrencies. Our empirical results suggest a strong impact of herding behavior on the formation of sentiment toward highly volatile assets. For such assets, we simultaneously find limited impacts of financial returns and investor attention on the opinion formation process, suggesting that investor sentiment is explained by social interactions. On the other hand, we find a limited influence of social interactions on sentiment regarding less volatile assets, whose formation process is instead explained by the strong influence of financial returns and investor attention. In particular, we find that herding behavior was significantly higher and played a major role in the sentiment formation process regarding cryptocurrencies when the bubble occurred. (C) 2022 Elsevier B.V. All rights reserved.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Agent -based model; Investor sentiment; Herding behavior; Social network

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 实证数据

【DOI】 10.1016/j.physa.2022.127884

【Author】 Qushtom, Haytham Misic, Jelena Misic, Vojislav B. Chang, Xiaolin

【Source】PEER-TO-PEER NETWORKING AND APPLICATIONS CCF-C

【影响因子】3.488

【主题类别】

区块链技术-协同技术-物联网

【Abstract】We describe a two-layer architecture suitable for wide area IoT systems that use blockchain technology. The lower layer is comprised of several clusters in which nodes are interconnected with a number of virtual overlays which allow multiple consensus rounds that validate incoming data blocks to proceed concurrently and without contention. Validated data blocks are then ordered by the upper layer cluster, a virtual cluster formed by nodes from lower layer clusters (one from each cluster), and linked in the replicated blockchain ledger. In each cluster, a modified Practical Byzantine Fault Tolerance (PBFT) protocol is used to achieve consensus. The use of layered architecture, virtual overlays, and multiple-leader capability lead to increased resiliency to consensus leader misbehavior as well as performance improvement over traditional PBFT, which are confirmed through a discrete time Markov chain (DTMC) model linked to an M/G/1 queuing model in a wide range of parameter values.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Multi-layer architecture; Internet-of-Things; Blockchain technology; PBFT consensus

【发表时间】

【收录时间】2022-08-22

【文献类型】 理论模型

【DOI】 10.1007/s12083-022-01363-y

【Author】 Liu, Yue Lu, Qinghua Yu, Guangsheng Paik, Hye-Young Zhu, Liming

【Source】INFORMATION SYSTEMS CCF-B

【影响因子】3.180

【主题类别】

区块链治理-法律治理-区块链监管制度

【Abstract】Blockchain eliminates the need for trusted third-party intermediaries in business by enabling decentralised architecture design in software applications. However, the vulnerabilities in on-chain autonomous decision-makings and cumbersome off-chain coordination lead to serious concerns about blockchain's ability to behave in a trustworthy and efficient way. Blockchain governance has received considerable attention to support the decision-making process during the use and evolution of blockchain. Nevertheless, the conventional governance frameworks do not apply to blockchain due to its distributed architecture and decentralised decision process. These inherent features lead to the absence of a clear source of authority in blockchain ecosystem. Currently, there is a lack of systematic guidance on the governance of blockchain. Therefore, in this paper, we present a comprehensive blockchain governance framework, which elucidates an integrated view of the degree of decentralisation, decision rights, incentives, accountability, ecosystem, and legal and ethical responsibilities. The above aspects are formulated as six high-level principles for blockchain governance. We demonstrate a qualitative analysis of the proposed framework, including case studies on five extant blockchain platforms, and comparison with existing blockchain governance frameworks. The results show that our proposed framework is feasible and applicable in a real-world context. (c) 2022 Elsevier Ltd. All rights reserved.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain; Governance; Decision rights; Accountability; Incentive; Ecosystem

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 观点阐述

【DOI】 10.1016/j.is.2022.102090

【Author】 Wu, Junhua Jin, Zhenyu Li, Guangshun Xu, Zhuqing Fan, Cang Zheng, Yuanwang

【Source】WORLD WIDE WEB-INTERNET AND WEB INFORMATION SYSTEMS

【影响因子】3.000

【主题类别】

区块链应用-实体经济-交通领域

【Abstract】Because of a large number of vehicles in Internet of Vehicle(IoV), distributed nodes and complex driving environment, data security and certification speed are easily affected. Blockchain enables different devices that do not trust each other to work together, maintain the general state in the process of information dissemination and sharing, and protect the privacy of devices. However, at present, the speed of vehicle certification in IoV is slow, and the use of idle resources is not considered. To address this problem, this paper provides a blockchain-based vehicle identity verification scheme by using a hybrid identity code verification method to ensure the nodes in the network securely share information. Meanwhile, a task processing algorithm based on time window is proposed to optimize the utilization of idle resources. In addition, the method is evaluated by simulation experiment, and the designed scheme can reduce malicious behavior of a registered vehicle in the network, and can shorten the processing task delay.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchian; Internet of Vehicle (IoV); Certification mechanism; Task assignment

【发表时间】

【收录时间】2022-08-22

【文献类型】 理论模型

【DOI】 10.1007/s11280-022-01078-3

【Author】 Ramesh, Prasanna Devadas, Aji Ray, Prajnya Ramesh, Shruthy Joshua, Tensingh Priyan, Vinoth Ramesh, Meena Rajasekaran, Ramesh

【Source】INDIAN JOURNAL OF OPHTHALMOLOGY

【影响因子】2.969

【主题类别】

区块链应用-实体经济-医疗领域

【Abstract】Big data has been a game changer of machine learning. But, big data is a form of centralized version of data only available and accessible to the technology giants. A way to decentralize this data and make machine learning accessible to the smaller organizations is via the blockchain technology. This peer-to-peer network creates a common database accessible to those in the network. Furthermore, blockchain helps in securing the digital data and prevents data tampering due to human interactions. This technology keeps a constant track of the document in terms of creation, editing, etc., and makes this information accessible to all. It is a chain of data being distributed across many computers, with a database containing details about each transaction. This record helps in data security and prevents data modification. This technology also helps create big data from multiple sources of small data paving way for creating a well serving artificial intelligence model. Here in this manuscript, we discuss about the usage of blockchain, its current role in machine learning and challenges faced by it.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain; Artificial Intelligence; Big Data Management; Cryptocurrency; Permissionless; Big Blockchain Network; Permissioned Blockchain

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 观点阐述

【DOI】 10.4103/ijo.IJO_143_22

【Author】 Rizvi, Syed Wasiul Hasan Agrawal, Saurabh Murtaza, Qasim

【Source】ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS

【影响因子】2.902

【主题类别】

区块链应用-实体经济-其他

【Abstract】The integration of circular economy and Industry 4.0 components like blockchain technology results in a faster induction of 'circularity' and leads to new strategies on resource utilization, making the world more sustainable. It is a 'key-enabler' in meeting tomorrow's circularity challenges. Literature revealed research gaps in a yet unexplored area of how 'circularity' building gets impacted by blockchain, especially in the Indian auto sector. Moreover, the nonavailability of its evaluation tool also necessitated present research. The main objective was to explore, from the auto stakeholders' perception viewpoints, the potential of the application of blockchain technology with special reference to the issue of 'sustainability and circularity' in the Indian context. The study involved a literature search, building a new circular economy-based blockchain model for the auto industry, and, finally, a case study in which the hypotheses about circularity and blockchain technology nexus impacts on the Indian auto industry were structured and tested through a research instrument, designed and sent to 45 auto stakeholders for evaluation of the said nexus. The data analyzed through the Best-Worst method revealed the 'potential' (weight: 0.393) and 'application' (weight: 0.262) impacts on CE are the most important yardsticks. The proposed model appears to be more reliable and secure and might help the managers of auto firms in forging new circularity-based strategies to exploit I4.0 efficiently.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Circular economy; industry 4; 0; blockchain technology; auto industry; best worst method

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 实证数据

【DOI】 10.1080/15567036.2022.2107119

【Author】 Kovalchuk, Lyudmila Kostanda, Volodymyr Marukhnenko, Oleksandr Pozhylenkov, Oleksii

【Source】MATHEMATICS

【影响因子】2.592

【主题类别】

区块链技术-协同技术-隐私计算

【Abstract】Among the most significant problems that almost any blockchain faces are the problems of increasing its throughput (i.e., the number of transactions per unit of time) and the problem of a long waiting time before block confirmation. Thus, for example, in the most common BTC blockchain, according to various estimates, throughput is from 3 to 7 tps (transactions per second), and the average block confirmation time (block is considered confirmed if it has at least 6 blocks over it) is 1 h. At the same time, it is impossible to solve these problems directly by increasing the block size or increasing block generation intensity because this leads to essentially a decrease in the security of the blockchain in the first turn against double spend and splitting attacks. Such problems lead to the inconvenience of the practical use of cryptocurrencies to pay for goods and services. Proposed a few years ago, the PoP consensus protocol potentially helps to solve the problem of increasing blockchain throughput, although it was originally intended to ensure the stability of "young" blockchains, with "small" PoW, through the use of a secure blockchain, such as BTC. A blockchain that has provable security is called the security-provided blockchain (SPB), and one that uses SPB to achieve its security is called the security-inherited blockchain. In this paper, we give explicit formulas which describe how the number of confirmation blocks in the security-inherited blockchain, which is sufficient to achieve a given security level of this blockchain to a double spend attack, depends on the parameters of both blockchains. It is essential that we use a realistic model to obtain the results, taking into account the synchronization times of both blockchains. Such a model is much closer to the real situation, but at the same time, it leads to significant analytical difficulties in obtaining results. The obtained formulas are convenient for numerical calculations, the numerous examples of which are also given in this work.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】PoP consensus; non-zero synchronization; blockchain security

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 实证数据

【DOI】 10.3390/math10142422

【Author】 Khezr, Seyednima Yassine, Abdulsalam Benlamri, Rachid

【Source】CLUSTER COMPUTING-THE JOURNAL OF NETWORKS SOFTWARE TOOLS AND APPLICATIONS

【影响因子】2.303

【主题类别】

区块链技术-协同技术-物联网

【Abstract】Massive internet of things (IoT) data generated by IoT edge devices are shaping the data economy. Monetizing the stream of IoT data has enabled the development of IoT data trading systems, which allow individuals to sell and exchange data. This article presents a blockchain-based system for IoT data trading using fog computing. We propose crowdsourcing fog nodes on the edge network to communicate and collect data from IoT edge device owners. This paper focuses on developing a secure and dependable blockchain-based system that allows data providers and consumers to engage in data trading process. Through experimental results, we evaluate the performance of the proposed model with respect to transaction throughput, latency, and resource consumption metrics under varied scenarios and parameters using Hyperledger blockchain.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Internet of things; Blockchain technology; Fog computing; Data crowdsourcing; Data trading; Performance evaluation

【发表时间】

【收录时间】2022-08-22

【文献类型】 实验仿真

【DOI】 10.1007/s10586-022-03669-1

【Author】 Revathy, G. Raj, K. Bhavana Kumar, Anil Adibatti, Spurthi Dahiya, Priyanka Latha, T. M.

【Source】THEORETICAL COMPUTER SCIENCE CCF-B

【影响因子】1.002

【主题类别】

区块链应用-实体经济-政务领域

【Abstract】An Election is a method of selection of individuals to hold the public office in democracy. Ballot is basically a piece of paper that is used to cast vote during election. In ballot paper voting system each voter uses a ballot paper which is not shared and basically it is a paper printed with the name and symbols of the candidates. The Electronic Voting Machine is basically a memory recorder which records the vote casted by the voters. In this paper, main advantages of E-voting systems for country is highlighted. For constructing E-voting systems, every countries need to do great attention to Verification and Validation requirements. In this research, E-voting scheme with face recognition using deep learning technique is proposed. The process of casting vote is accomplished by blockchain technology and blind signature mechanism. The main objective of the proposed scheme is to explore the positive effects of security and safety in online voting system. (c) 2022 Elsevier B.V. All rights reserved.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】E-voting; CNN; Blockchaintechnology; Securitymechanism; Deeplearning; Andballotpaper

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 观点阐述

【DOI】 10.1016/j.tcs.2022.05.005

【Author】 Long, Yujiang Li, Xun Wei, Wei Long, Na

【Source】INTEGRATED FERROELECTRICS

【影响因子】0.836

【主题类别】

区块链应用-实体经济-通信领域

【Abstract】As the traditional grid data architecture develops with enterprises, its security risks will become greater and greater, and it will not be able to satisfy customers' differentiated services. Predecessors' research on the application of blockchains and nanomaterials is still insufficient. To solve the various shortcomings of the traditional power grid data governance architecture, a new type of sensor designed using blockchain technology and nanomaterials is designed through new technical means. It is applicable to the current digital grid data management architecture. The study found that the scale of the system gradually increased from 4 nodes to 16 nodes, and the TPS entered the smoothing stage after about 10, 50, 70, and 100 s, and stabilized at a small fluctuation point. We found that for every 4 nodes increase in the cluster size, the throughput drops by about 8%. Clusters of different sizes have entered a state of stable throughput. Although TPS has shown an overall downward trend of 8%, the peak situation of TPS has shown a certain different trend. This shows that the digital grid data governance network framework designed through blockchain technology and nanomaterial technology can meet the various needs of modern digital grid data centers for data center networks, such as: business scalability, reliability, security, etc.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain technology; nano material technology; digital grid; data architecture

【发表时间】2022

【收录时间】2022-08-22

【文献类型】 实证数据

【DOI】 10.1080/10584587.2022.2072120