scholarly journals A Logical Framework for Scientific Research Projects based on Blockchain Technology

2021 ◽  
Vol 10 (5) ◽  
pp. 3028-3036
Keyword(s):  
Quality Assurance ◽  
Supply Chains ◽  
Scientific Research ◽  
Logical Framework ◽  
Research Projects ◽  
Huge Number ◽  
Blockchain Technology ◽  
Smart Contract ◽  
The Cost

The Scientific research projects has encountered severe problems in procurements of supply for research projects in Egypt. Despite the huge number of scientific researches projects annually. The cost of scientific research projects is so high and it has a lot of elements in their supply chains. Due to this, it becomes almost impossible to keep track of each and every record in traditional ways. The lack of transparency and increased cost of projects lead to some of scientific researches not turn into a final product and facing many problems. This paper proposed a logical framework for enhancing the supply of scientific research projects using Blockchain. by analyzing the previous works in Blockchain & Smart Contract, Blockchain & e-commerce, Blockchain & Procurement, and Blockchain & Tender. The researcher built the research point from this analyzing. Using Blockchain in Procurements and Blockchain in Tenders as a method for Build a Framework for effectively lead to increase security, minimize delays in paperwork and increase the transparency and quality assurance.

scholarly journals Blockchain technology for accounting and distribution of contributions from a charitable foundation

2021 ◽  
Vol 5 (2(61)) ◽  
pp. 9-14
Author(s):  
Oksana Herasymenko ◽  
Valeriia Bachynska
Keyword(s):  
Web Application ◽  
Web Applications ◽  
Smart Contracts ◽  
Joint Work ◽  
Non Profit ◽  
Software Application ◽  
Blockchain Technology ◽  
Smart Contract ◽  
Seeking Help ◽  
The Cost

The object of research is software for financial accounting and distribution of funds in a non-profit charitable foundation using smart contracts of the Ethereum platform. The work is aimed at designing and implementing a software application for a charitable foundation, which allows to exclude the misuse of funds of a non-profit charitable foundation. The paper proposes an implementation of the Ethereum smart contract for the software of a charitable foundation. In the app, users can apply for financial aid or make a charitable donation. The request for financial support is confirmed by administrators to avoid abuse by those seeking help. Anyone who has a crypto wallet can become a sponsor by transferring funds from its account to a selected request. The sponsor remains incognito when making a charitable contribution. After collecting the entire declared amount, the funds are automatically transferred to the crypto wallet of the request’s owner. A smart contract and a corresponding decentralized web application for interacting with it were experimentally deployed, and their joint work was tested. To implement the smart contract, the Solidity programming language was chosen; developed smart contract converted to bytecode using remix. The resulting bytecode is ready to be deployed on the Ethereum platform. Decentralized web application for interacting with the contract is implemented using Web3.js, Vue.js. A rough estimate of the cost of deploying a project on the Ethereum platform has been made. The deployment and operation of smart contracts and web applications comes with a certain overhead, which is most dependent on the cost of ether. However, this is a justified price to pay for the transparency of transactions and the shadowing of the turnover of funds of the charitable foundation. The results of the research can be used as a basis for further transformation into full-fledged software with the ability to submit all reporting documents to the relevant government agencies and sponsors.

scholarly journals Blockchain and Smart Contracts: A Solution for Payment Issues in Construction Supply Chains

Informatics ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 36
Author(s):  
Samudaya Nanayakkara ◽  
Srinath Perera ◽  
Sepani Senaratne ◽  
Geeganage Thilini Weerasuriya ◽  
Herath Mudiyanselage Nelanga Dilum Bandara
Keyword(s):  
Supply Chain ◽  
Supply Chains ◽  
Construction Industry ◽  
Primary Data ◽  
Distributed Data ◽  
Smart Contracts ◽  
Blockchain Technology ◽  
Smart Contract ◽  
Industry Applications ◽  
Financial Issues

The construction industry has dynamic supply chains with multiple suppliers usually engaged in short-term relationships. Government legislation, novel types of payment agreements, conventional information technology solutions, and supply chain management best practices have endeavoured to solve payment-related financial issues in the construction industry, which are mainly caused by the complexities of the construction supply chain. Nevertheless, payment-related issues persist as one of the key challenges in the industry. Applications of blockchain technology–a trusted, distributed data storing mechanism–along with smart contracts are gaining focus as solutions for complex interorganisational processes. A smart contract is a self-executing script that codifies a set of rules or agreements between multiple parties and runs across the blockchain network. This paper identifies the suitability of blockchain and smart contract technologies in solving payment issues in the construction industry. An expert forum of construction industry stakeholders served as the primary data collection method through a structured questionnaire. The key finding of the paper is that blockchain and smart contract powered solutions can significantly mitigate the payment and related financial issues in the construction industry, including partial payments, nonpayments, cost of finance, long payment cycle, retention, and security of payments.

scholarly journals Digitalizing the Closing-of-the-Loop for Supply Chains: A Transportation and Blockchain Perspective

2021 ◽  
Vol 13 (5) ◽  
pp. 2895
Author(s):  
Abdelghani Bekrar ◽  
Abdessamad Ait El Cadi ◽  
Raca Todosijevic ◽  
Joseph Sarkis
Keyword(s):  
Supply Chains ◽  
Circular Economy ◽  
Research Study ◽  
Research Directions ◽  
Blockchain Technology ◽  
Smart Contract ◽  
Practical Research ◽  
Physical Internet ◽  
Managerial Implications ◽  
Potential Benefits

The circular economy is gaining in importance globally and locally. The COVID-19 crisis, as an exceptional event, showed the limits and the fragility of supply chains, with circular economy practices as a potential solution during and post-COVID. Reverse logistics (RL) is an important dimension of the circular economy which allows management of economic, social, and environmental challenges. Transportation is needed for RL to effectively operate, but research study on this topic has been relatively limited. New digitalization opportunities can enhance transportation and RL, and therefore further enhance the circular economy. This paper proposes to review practical research and concerns at the nexus of transportation, RL, and blockchain as a digitalizing technology. The potential benefits of blockchain technology through example use cases on various aspects of RL and transportation activities are presented. This integration and applications are evaluated using various capability facets of blockchain technology, particularly as an immutable and reliable ledger, a tracking service, a smart contract utility, as marketplace support, and as tokenization and incentivization. We also briefly introduce the physical internet concept within this context. The physical internet paradigm proposed last decade, promises to also disrupt the blockchain, transportation, and RL nexus. We include potential research directions and managerial implications across the blockchain, transportation, and RL nexus.

The Potential Of Blockchain Technology To Change International Mobile Roaming Business Model

2019 ◽  
Vol 5 (1) ◽  
pp. 15-22
Author(s):  
Ardian Thresnantia Atmaja
Keyword(s):  
Business Model ◽  
Current Situation ◽  
Business Value ◽  
Third Party ◽  
Fundamental Aspect ◽  
Clearing House ◽  
Blockchain Technology ◽  
Smart Contract ◽  
Target Architecture ◽  
Architecture Development

The key objectives of this paper is to propose a design implementation of blockchain based on smart contract which have potential to change international mobile roaming business model by eliminating third-party data clearing house (DCH). The analysis method used comparative analysis between current situation and target architecture of international mobile roaming business that commonly used by TOGAF Architecture Development Method. The purposed design of implementation has validated the business value by using Total Cost of Ownership (TCO) calculation. This paper applies the TOGAF approach in order to address architecture gap to evaluate by the enhancement capability that required from these three fundamental aspect which are Business, Technology and Information. With the blockchain smart contract solution able to eliminate the intermediaries Data Clearing House system, which impacted to the business model of international mobile roaming with no more intermediaries fee for call data record (CDR) processing and open up for online billing and settlement among parties. In conclusion the business value of blockchain implementation in the international mobile roaming has been measured using TCO comparison between current situation and target architecture that impacted cost reduction of operational platform is 19%. With this information and understanding the blockchain technology has significant benefit in the international mobile roaming business.

scholarly journals Research on Blockchain-Based E-Bidding System

2021 ◽  
Vol 11 (9) ◽  
pp. 4011
Author(s):  
Dan Wang ◽  
Jindong Zhao ◽  
Chunxiao Mu
Keyword(s):  
Data Transmission ◽  
Privacy Protection ◽  
Graph Isomorphism ◽  
Third Party ◽  
Business Logic ◽  
Core Concept ◽  
The Core ◽  
Blockchain Technology ◽  
Smart Contract ◽  
Bidding Process

In the field of modern bidding, electronic bidding leads a new trend of development, convenience and efficiency and other significant advantages effectively promote the reform and innovation of China’s bidding field. Nowadays, most systems require a strong and trusted third party to guarantee the integrity and security of the system. However, with the development of blockchain technology and the rise of privacy protection, researchers has begun to emphasize the core concept of decentralization. This paper introduces a decentralized electronic bidding system based on blockchain and smart contract. The system uses blockchain to replace the traditional database and uses chaincode to process business logic. In data interaction, encryption techniques such as zero-knowledge proof based on graph isomorphism are used to improve privacy protection, which improves the anonymity of participants, the privacy of data transmission, and the traceability and verifiable of data. Compared with other electronic bidding systems, this system is more secure and efficient, and has the nature of anonymous operation, which fully protects the privacy information in the bidding process.

Keynote

2021 ◽  
Vol 48 (4) ◽  
pp. 3-3
Author(s):  
Ingo Weber
Keyword(s):  
Cost Estimation ◽  
Estimation Method ◽  
Main Topic ◽  
System Throughput ◽  
Distributed Ledger ◽  
Smart Contract ◽  
Distributed Ledger Technology ◽  
Wide Range ◽  
The Cost ◽  
Application Developers

Blockchain is a novel distributed ledger technology. Through its features and smart contract capabilities, a wide range of application areas opened up for blockchain-based innovation [5]. In order to analyse how concrete blockchain systems as well as blockchain applications are used, data must be extracted from these systems. Due to various complexities inherent in blockchain, the question how to interpret such data is non-trivial. Such interpretation should often be shared among parties, e.g., if they collaborate via a blockchain. To this end, we devised an approach codify the interpretation of blockchain data, to extract data from blockchains accordingly, and to output it in suitable formats [1, 2]. This work will be the main topic of the keynote. In addition, application developers and users of blockchain applications may want to estimate the cost of using or operating a blockchain application. In the keynote, I will also discuss our cost estimation method [3, 4]. This method was designed for the Ethereum blockchain platform, where cost also relates to transaction complexity, and therefore also to system throughput.

scholarly journals Blockchain-Based Application for Certification Management

2020 ◽  
Vol 14 (4) ◽  
pp. 488-492
Author(s):  
Jovan Karamachoski ◽  
Ninoslav Marina ◽  
Pavel Taskov
Keyword(s):  
Supply Chain ◽  
Business Models ◽  
Human Factor ◽  
Computer Code ◽  
Chain Management ◽  
Practical Applications ◽  
Sustainable Technologies ◽  
Blockchain Technology ◽  
Smart Contract ◽  
Crucial Part

Blockchain technology will bring a disruption in plenty of industries and businesses. Recently it proved the robustness, immutability, auditability, in many crucial practical applications. The blockchain structure offers traceability of actions, alterations, alerts, which is an important property of a system needed for development of sustainable technologies. A crucial part of the blockchain technology regarding the optimization of the processes is the smart contract. It is a self-executable computer code, open and transparent, encoding the terms of a regular contract. It is able to automate the processes, thus decreasing the human-factor mistakes or counterfeits. In this paper, we are presenting the feasibility of the blockchain technology in the certification processes, with an application developed for university diploma certification. The example is easily transferable in other areas and business models such as logistics, supply chain management, or other segments where certification is essential.

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