scholarly journals SESCF: A Secure and Efficient Supply Chain Framework via Blockchain-Based Smart Contracts

2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Menghui Lou ◽  
Xiaolei Dong ◽  
Zhenfu Cao ◽  
Jiachen Shen
Keyword(s):  
Supply Chain ◽  
Radio Frequency Identification ◽  
Large Scale ◽  
Distributed Storage ◽  
Smart Contracts ◽  
Supply Chain System ◽  
Chain System ◽  
Unique Identity ◽  
Frequency Identification

The demands for the fairness, security, and efficiency of the supply chain have grown significantly due to the rise of globalization. However, some problems of the information flow, logistics, and capital flow in the supply chain remain a challenge, such as the information asymmetry between upstream and downstream, substandard quality of goods, difficulty in traceability, and default of payment. Therefore, this paper proposes a blockchain-based supply chain framework (SESCF), which solves the supply chain problems securely and efficiently. First, the use of blockchain and smart contracts ensures the information symmetry in the supply chain system. Second, the radio frequency identification (RFID) provides a unique identity of goods, which helps in real-time quality monitoring. Additionally, the immutability and distributed storage of the blockchain play an important role in tracking the origin of goods. Third, the efficient payment channel is used to solve the problem of payment defaults. Furthermore, simulations of smart contracts along with the security analyses are presented in this paper. We also implement a blockchain-based supply chain system (SescfDapp), which is built upon a Consortium blockchain. Large-scale experiments and detailed analysis prove the feasibility and efficiency of our proposed system.

scholarly journals The Value Proposition of RFID Technology in Tall Prefabricated Timber Buildings

2019 ◽  
pp. 181-188
Author(s):  
Perry Forsythe ◽  
Alireza Ahmadian Fard Fini ◽  
Alireza Jalali Yazdi
Keyword(s):  
Supply Chain ◽  
Radio Frequency Identification ◽  
Large Scale ◽  
Field Trials ◽  
Added Value ◽  
Value Proposition ◽  
Rfid Technology ◽  
Frequency Identification ◽  
Tracking Model ◽  
Full Benefit

The full benefit of prefabricated timber systems in the construction of multi-story buildings depends on integration and efficiency in the upstream logistics and supply chain. The purpose of this research is therefore to determine the potential value that the use of Radio-Frequency Identification technology (RFID) can contribute to the prefabricated construction of timber, and to undertake the basic development of a RFID tracking model for this purpose. The methods used in this study not only build on the knowledge gained from previous literature, but also include interviews with industry experts, field trial design and field trials. The research showed that the RFID tracking system's value proposition tends to be strongest where there are large scale and vertically integrated supply chains, logistics complexity between a limited number of discrete but partnered supply chain links and/or internal logistical complexity problems. Therefore, five distinct added value stages of RFID applications have been found in incoming delivery logistics, factory panel production, outgoing delivery logistics, on-site installation and third parties who can inspect the finished construction work. Application of RFID technology in prefabrication factory environments, where fixed readers can be used in predefined processes, was found promising. However, due to the temporary nature of the sites and the associated investment, the capacity for high automation levels is thought to be more limited on site.

scholarly journals Demand Allocation and Profit Sharing to Improve Salt Farmer’s Revenue: A Cooperative Game Approach

2021 ◽  
Author(s):  
Iffan Maflahah ◽  
Budi Santoso Wirjodirdjo ◽  
Putu Dana Karningsih
Keyword(s):  
Supply Chain ◽  
Cooperative Game ◽  
Bargaining Power ◽  
Cooperative Game Theory ◽  
Positive Impact ◽  
Profit Sharing ◽  
Supply Chain System ◽  
Savings And Loans ◽  
Chain System

Abstract The main problem of the salt supply chain system is the oligopoly market structure dominated by middlemen which reduces the bargaining power of farmers. It has, however, been discovered that vertical collaboration (farmers to cooperatives) and horizontal collaboration (farmers to farmers) models have the ability to increase farmers' revenue. Therefore, this research was conducted to determine the effect of both horizontal and vertical collaboration models on the salt supply chain system with the expectation to increase farmers' revenue. This involved the application of the cooperative game theory with Shapley's value used as the basis for decision making. The result showed that the collaboration of stakeholders in the salt supply chain system has the ability to increase farmers' revenue, especially when they sell a maximum of 20% of their products through cooperatives and the rest through middlemen. This means the existence of farmers as cooperative members has a positive impact as observed in the revenue increment. Therefore, it is recommended that cooperatives improve their functions and roles as providers of savings and loans and market seekers, determine the appropriate prices for salt, and improve the quality of the products produced by their members. Moreover, a collaboration between farmers is mutually beneficial and this means efforts should be made to ensure cooperation, especially for small farmers.

scholarly journals A Traceable and Reliable Electronic Supply Chain System Based on Blockchain Technology

2020 ◽  
Vol 4 (2) ◽  
pp. 132
Author(s):  
Shaniar Tahir Mohammed ◽  
Jamal Ali Hussien
Keyword(s):  
Supply Chain ◽  
Real Time ◽  
Tracking System ◽  
Supply Chain System ◽  
Chain System ◽  
Blockchain Technology ◽  
Hash Algorithm ◽  
Unique Identity ◽  
Secure Hash Algorithm ◽  
Drug Supply Chain

Electronic supply chain (ESC) is a network among the parties of a supply chain system, such as manufacturers, suppliers, and retailers. It recodes all the processes involved in the distribution of specific products until transported to final customers. Blockchain (BC) technology is a decentralized network that records all the transactions in real-time and is used in many areas such as cryptocurrency. In this paper, we work on an ESC system that records all the transactions based on BC technology using a drug supply chain system as a case study. The recording of the transactions consists of three main stages. First, all the parties of the ESC system are represented in the BC network as clients with unique identities. Second, all the information related to a specific drug is recorded inside the transaction and each transaction has its own signature. Finally, all the transactions of the drug from the manufacture to the patient are recorded inside a block with a unique identity for each block. These steps inside the BC are performed based on security cryptography mechanisms, such as rivest-shamir-adleman (RSA) and secure hash algorithm SHA. The results illustrate that the proposed approach protects the drugs from counterfeiting, ensures the reliability, and provides a real-time tracking system for the transactions that have occurred among ESC parties.

scholarly journals A Blockchain-Based Secure Radio Frequency Identification Ownership Transfer Protocol

2022 ◽  
Vol 2022 ◽  
pp. 1-12
Author(s):  
M. Vijayalakshmi ◽  
S. Mercy Shalinie ◽  
Ming Hour Yang ◽  
Shou-Chuan Lai ◽  
Jia-Ning Luo
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Radio Frequency Identification ◽  
Product Life Cycle ◽  
Supply Chain System ◽  
Chain Management ◽  
Administrative Costs ◽  
Ownership Transfer ◽  
Frequency Identification ◽  
Transfer Protocol

Supply chain management (SCM) governance is the streamline of the IoT product life cycle from its production to delivery. Integrating blockchain with supply chain management is essential to ensure end-to-end tracking, trustiness between manufacturers and customers, fraud and counterfeit elimination, and customizing administrative costs and paperwork. This paper proposes an RFID ownership transfer protocol with the help of zk-SNARKs (Zero Knowledge-Succinct Noninteractive Arguments of Knowledge) using Ethereum blockchain. When the owner performs RFID transfer, the transferred information will be recorded on the blockchain using smart contracts. When using a smart contract to transfer ownership on the Ethereum blockchain, because the content on the blockchain will not be tampered with, all accounts in the Ethereum can view the transfer results and verify them. The privacy of the supply chain is attained by generating the proof of product code via zk-SNARKs algorithm. This algorithm also enhances the scalability of the supply chain system by creating a trusted setup in off-chain mode.

scholarly journals Modeling Relief Demands in an Emergency Supply Chain System under Large-Scale Disasters Based on a Queuing Network

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Xinhua He ◽  
Wenfa Hu
Keyword(s):  
Supply Chain ◽  
Large Scale ◽  
Mathematical Problem ◽  
Distribution Centers ◽  
Supply Chain System ◽  
Time Model ◽  
Chain System ◽  
Emergency Rescue ◽  
Rescue Center ◽  
Emergency Supply

This paper presents a multiple-rescue model for an emergency supply chain system under uncertainties in large-scale affected area of disasters. The proposed methodology takes into consideration that the rescue demands caused by a large-scale disaster are scattered in several locations; the servers are arranged in multiple echelons (resource depots, distribution centers, and rescue center sites) located in different places but are coordinated within one emergency supply chain system; depending on the types of rescue demands, one or more distinct servers dispatch emergency resources in different vehicle routes, and emergency rescue services queue in multiple rescue-demand locations. This emergency system is modeled as a minimal queuing response time model of location and allocation. A solution to this complex mathematical problem is developed based on genetic algorithm. Finally, a case study of an emergency supply chain system operating in Shanghai is discussed. The results demonstrate the robustness and applicability of the proposed model.

scholarly journals Improving the Quality of the Goods Delivery Supply Chain System with the Integration of Lean Six Sigma and AHP Methods

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Muhammad Iqbal Maulana ◽  
Hana Catur Wahyuni
Keyword(s):  
Supply Chain ◽  
Quality Improvement ◽  
Six Sigma ◽  
Lean Six Sigma ◽  
Research Needs ◽  
Supply Chain System ◽  
Chain System ◽  
Logistics Service ◽  
Selection For

Astrans Putra Logistik Ltd. is a logistics service company with shipping routes in Sidoarjo, Denpasar, Lombok and NTB. Some of the problems that occur, such as delays in the pick-up process of goods to the load that large but not enough for departure, cause the quality of the supply chain system to be poor. So this research needs to be done with the aim of knowing the point of waste in the supply chain, identifying the sigma value, and determining the priority for its improvement. Quality improvement is carried out using the Lean Six Sigma method with AHP integration as a priority selection for improvement. From the research results, it was found that there was waste that caused 3 (three) CTQ, namely delivery was delayed, goods were damaged or leaked, and there was a difference in the number of goods. The company's DPMO value is 34272 with a sigma value of 3.34. The priority for improvements that can be made based on AHP weight, namely check the package packages before they are sent (0,353), make SOP for the preparation of goods (0,167), and apply SOP for goods checking documents (0,142).

scholarly journals Analysis and framework for agricultural supply chain improvement: a case study of california papaya in cikarang

2019 ◽  
Vol 3 (2) ◽  
pp. 107
Author(s):  
Johan K. Runtuk ◽  
Anstasia L. Maukar
Keyword(s):  
Supply Chain ◽  
Modified Atmosphere Packaging ◽  
Field Studies ◽  
Chain Process ◽  
Supply Chain System ◽  
Chain System ◽  
Supply Chain Process

Excessive waste is one of the problems in the food supply chain system. This study aims to identify supply chain players, map, and reduce waste that occurs in the Papaya California agribusiness supply chain process in Cikarang, Bekasi. Data collection was obtained from the results of field studies and interviews with parties involved in the supply chain such as farmers, distributors, retailers, and consumers. Increasing the effectiveness of Papaya's supply chain network is by improving the quality of packaging (modified atmosphere packaging (MAP), smart packaging, active packaging, and intelligent packag­ing), sharing data among chain players supply, implement refri­ge­ration and monitor transportation technology and promote the long term.  Good coordination between parties involved in the Papaya supply chain has a significant role in creating an effective and effici­ent supply chain system.

scholarly journals Evaluating Pallet Investment Strategy Using Fuzzy Analytic Network Processes: A Case in Chinese Chain Supermarkets

Mathematics ◽  
2021 ◽  
Vol 9 (24) ◽  
pp. 3210
Author(s):  
Hung-Lung Lin ◽  
Yu-Yu Ma ◽  
Chin-Tsai Lin
Keyword(s):  
Supply Chain ◽  
Resource Sharing ◽  
Large Scale ◽  
Analytic Network Process ◽  
Investment Strategy ◽  
Automatic Equipment ◽  
Supply Chain System ◽  
Actual Case ◽  
Chain System ◽  
Network Process

Presently in Chinese chain supermarkets, many enterprises have built automatic equipment and information facilities in the logistics center of their supply chain systems. Modern logistics technology and equipment largely depend on the resource integration of each role in the chain (such as suppliers, manufacturers, wholesalers, and retailers), especially logistics facilities and equipment resources, to realize the circulation of products. The pallet, which is an indispensable basic tool for a supply chain system in the process of product circulation, is most often used in the handling, stacking, storage, and transportation of products. The process of building automation and informationization in the supply chain system of Chinese supermarket chains requires the solving of the problems of cost and sharing pallets in logistics operations. Large-scale enterprises often spend millions of dollars on investment, the failure of which can cause significant harm to the enterprise. Therefore, the authors of this paper adopted the fuzzy analytic network process (FANP), combining fuzzy and ANP models to evaluate our studied case. We utilized an actual case as the research object to resolve the important decisions regarding pallet resource sharing investment in the supply chain system. Importantly, it is expected that the proposed method can provide an important reference standard or a new idea for decision makers in the chain supermarket industry or related industries.

scholarly journals Pricing-Decision and Coordination Contract considering Product Design and Quality of Recovery Product in a Closed-Loop Supply Chain

2015 ◽  
Vol 2015 ◽  
pp. 1-14 ◽  
Author(s):  
Qingming Zou ◽  
Guangyu Ye
Keyword(s):  
Supply Chain ◽  
Closed Loop ◽  
Wholesale Price ◽  
Retail Price ◽  
Recycling Rate ◽  
Supply Chain System ◽  
Closed Loop Supply Chain ◽  
Chain System ◽  
Total Profit

In a closed-loop supply chain consisting of a manufacturer and a retailer, this paper studies the pricing strategies and coordination mechanism of supply chain when the remanufacturing cost is random caused by the proportion of reusability parts in design stage and quality condition of recycling product. The results show that the wholesale price and retail price are negative correlation, while the recycling rate and total profit of supply chain system are positive correlation with the proportion of reusability component designed in new product and quality of recycling product. Moreover, there are conclusions that the wholesale price and retail price are lower while the recycling rate and total profit of supply chain system are higher with centralized decision. Then, in order to coordinate the closed-loop supply chain, this paper develops a revenue-sharing contract, in which the revenue share parameter is determined based on absolute deviation approach. The theoretical results are illustrated by a numerical example.

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