scholarly journals Designing Architecture Blockchain of Hyperledger Fabric for Purchasing Strategy

2021 ◽  
Vol 10 (2) ◽  
pp. 464-468
Keyword(s):  
Data Security ◽  
Raw Materials ◽  
Transaction Processing ◽  
Third Party ◽  
Waste Products ◽  
Technical Problems ◽  
Blockchain Technology ◽  
Fabric Design ◽  
Access Data ◽  
Recycled Waste

Hyperledger Fabric refers to a blockchain technology regulated by the Linux Foundation, which implements a blockchain network, namely the permission blockchain. The network provides a membership service concept, which means that only certain parties can transact and access data. This research will show the blockchain architecture design of the hyperledger fabric, which is designed for the purchasing strategy of recycled waste products. The design will be used to make purchases for managing distributors in buying recycled waste products from waste banks as raw materials to be processed. The traditional purchasing process using the bank as a third party will take longer and will be more expensive. Therefore, this research aims to improve data security and transparency between the authorities and direct the payment process in an instant and dramatically reduce transaction costs. Besides, this design can also be applied to any e-commerce. The method used is blockchain, which focuses on hyperledger fabric design. The position on the hyperledger fabric is only applied to the transaction processing of the hyperledger fabric. This study's results apply a design to a blockchain system using a hyperledger fabric to overcome several technical problems related to blockchains such as throughput, scalability, and interoperability and contribute to purchasing strategies.

ENABLING DATA SECURITY IN CLOUD COMPUTING THROUGH REMOTE DATA INTEGRITY AUDITING

2021 ◽  
pp. 6-9
Author(s):  
Kavya H ◽  
Samyama Gunjal G H
Keyword(s):  
Cloud Computing ◽  
Electronic Health Records ◽  
Data Security ◽  
Data Integrity ◽  
User Privacy ◽  
Health Records ◽  
Essential Information ◽  
Blockchain Technology ◽  
Access Data ◽  
Remote Data

Health-records are an essential information for everyone. User cannot carry all the health records of a patient everywhere whenever required, as it may lead to misplacing of documents and may get placed in the wrong hands. To solve this obstacle, remote data integrity audit proposal has been introduced, that facilitates the sharing of data and hides crucial data ensuring the condentiality of the information stored in the cloud. The proposed system aims at preserving user privacy in an Electronic Health Records (EHR) system using the blockchain technology (EHR-BT). The scheme generates blocks of equal length of the le with condential data and turns the signatures of data blocks into legitimate le access data blocks. With the integrity audit phase, signatures are used to certify the integrity of the le, as well as ensures the privacy and immutability of information.

A Concrete Way to Develop Clinical Research in a Fair Way to the Users/Patients Using Blockchain Technology

2021 ◽  
pp. 228-249
Author(s):  
João Fonseca-Gomes ◽  
Denise Francisco ◽  
João Mota Sequeira
Keyword(s):  
Clinical Research ◽  
Clinical Data ◽  
Data Security ◽  
Health Data ◽  
Third Party ◽  
Potential Solution ◽  
Blockchain Technology ◽  
Hypothetical Scenario ◽  
The One ◽  
Pain Points

Blockchain is being explored as a potential solution to many problems in areas other than the one created initially: cryptocurrency. Blockchain technology allows the authenticity of data, security in transactions, and privacy without the need for a third party. For that main reason, one of the growing interests concerns its application in healthcare, namely in clinical research. Multiple pain points of clinical research might benefit from the implementation of blockchain technology. This chapter shows some examples in which this technology is already implemented, identifying the advantages of its use. One of those advantages is clinical research, with the possibility of the patients managing their own clinical data and being properly rewarded for that. Research about clinical data monetization for patients is currently limited, and this chapter also proposes a hypothetical scenario of health data monetization workflow.

Blockchain in Clinical Trials

2021 ◽  
pp. 278-292
Author(s):  
Shaveta Malik ◽  
Archana Mire ◽  
Amit Kumar Tyagi ◽  
Arathi Boyanapalli
Keyword(s):  
Clinical Trial ◽  
Clinical Trials ◽  
Clinical Research ◽  
Data Sharing ◽  
Study Protocol ◽  
Data Security ◽  
Personal Data ◽  
Third Party ◽  
Report Generation ◽  
Blockchain Technology

Clinical research comprises participation from patients. Often there are concerns of enrolment from patients. Hence, it has to face various challenges related to personal data, such as data sharing, privacy and reproducibility, etc. Patients and researchers need to track a set plan called study protocol. This protocol spans through various stages such as registration, collection and analysis of data, report generation, and finally, results in publication of findings. The Blockchain technology has emerged as one of the possible solutions to these challenges. It has a potential to address all the problem associated with clinical research. It provides the comfort for building transparent, secure services relying on trusted third party. This technology enables one to share the control of the data, security, and the parameters with a single patient or a group of patients or any other stakeholders of clinical trial. This chapter addresses the use of blockchain in execution of secure and trusted clinical trials.

scholarly journals Studies of Conventional and New Technologies for Preparation of Iron Ore Raw Materials at Iron Making Plant of Pao Severstal to Evaluate Prospectives for Reduction of Ecological Load on Environment

2020 ◽  
Author(s):  
T.V. Detkova ◽  
A.A. Kalko ◽  
A.A. Eliseev
Keyword(s):  
Iron Ore ◽  
New Technologies ◽  
Raw Materials ◽  
Chemical Processes ◽  
Recycled Materials ◽  
Waste Products ◽  
Technological Processes ◽  
Sinter Strength ◽  
Recycled Waste ◽  
Qualitative Characteristics

The experts of Centre for Raw Materials Investigations (CRMI) have conducted research into the usage of recycled materials in the following technological processes: sintering and briquetting. Research shows variation in emissions containing sinter gases and qualitative characteristics of the finished product (cold and hot sinter strength). It is suggested that involvement of recycled waste products of steelmaking and chemical processes shall be increased using the method of vacuum extrusion. Keywords: sintering, recycled materials, sinter gas, briquettes

scholarly journals Enhancing Financial Transactions using Blockchain Technology

2020 ◽  
Vol 8 (5) ◽  
pp. 4918-4923
Keyword(s):  
Transaction Processing ◽  
Third Party ◽  
Blockchain Technology ◽  
Peer Network ◽  
Us Dollar ◽  
The Creation ◽  
Financial Transactions ◽  
Processing Mechanisms ◽  
Peer To Peer Network ◽  
Processing Mechanism

Blockchain technology is evolving in each area. Cryptocurrency is one of the prominent fields in which blockchain technology is used extensively. In conventional bank systems using fiat currencies such as Indian rupee, US dollar etc , there is a centralized authority like a bank which do the processing of transactions. Blockchain with its properties like decentralization, distributed, and immutability stands the way out from other transaction processing mechanisms. Moreover, with decentralization property in blockchain-based transactions makes that there is a peer-to-peer network in which one peer can able to transact with others in the network without relying on third party for validating the transactions. Instead, there are a group of miners who does the work of validation with the use of consensus protocols. The paper shows the use of blockchain technology in financial transactions with the help of tokens. The paper shows the creation of a simulated blockchain network and the transaction processing mechanism with the help of the creation of nodes. This paper shows the implementation of blockchain technology and it also shows the limitations and misconceptions involved in blockchain technology

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.

A New User-controlled and Efficient Encrypted Data Sharing Model in Cloud Storage

2019 ◽  
Vol 13 (4) ◽  
pp. 356-363
Author(s):  
Yuezhong Wu ◽  
Wei Chen ◽  
Shuhong Chen ◽  
Guojun Wang ◽  
Changyun Li
Keyword(s):  
Data Sharing ◽  
Data Security ◽  
Cloud Storage ◽  
Screening Program ◽  
Original Data ◽  
Third Party ◽  
Active System ◽  
Encrypted Data ◽  
Active User ◽  
User Data

Background: Cloud storage is generally used to provide on-demand services with sufficient scalability in an efficient network environment, and various encryption algorithms are typically applied to protect the data in the cloud. However, it is non-trivial to obtain the original data after encryption and efficient methods are needed to access the original data. Methods: In this paper, we propose a new user-controlled and efficient encrypted data sharing model in cloud storage. It preprocesses user data to ensure the confidentiality and integrity based on triple encryption scheme of CP-ABE ciphertext access control mechanism and integrity verification. Moreover, it adopts secondary screening program to achieve efficient ciphertext retrieval by using distributed Lucene technology and fine-grained decision tree. In this way, when a trustworthy third party is introduced, the security and reliability of data sharing can be guaranteed. To provide data security and efficient retrieval, we also combine active user with active system. Results: Experimental results show that the proposed model can ensure data security in cloud storage services platform as well as enhance the operational performance of data sharing. Conclusion: The proposed security sharing mechanism works well in an actual cloud storage environment.

THE ALLIED NEUTRAL? PORTUGUESE BALANCE OF PAYMENTS WITH THE UK AND GERMANY IN THE SECOND WORLD WAR, 1939-1945

2020 ◽  
Vol 38 (1) ◽  
pp. 79-110
Author(s):  
Eric Golson
Keyword(s):  
Raw Materials ◽  
Second World War ◽  
Balance Of Payments ◽  
International Standards ◽  
Third Party ◽  
World War ◽  
Portuguese Empire ◽  
Active Choice ◽  
The Uk ◽  
Second World

ABSTRACTIn September 1939, Portugal made a realist strategic choice to preserve the Portuguese Empire maintaining by its neutrality and also remaining an ally of Great Britain. While the Portuguese could rely largely on their colonies for raw materials to sustain the mainland, the country had long depended on British transportation for these goods and the Portuguese military. With the British priority now given to war transportation, Portugal's economy and Empire were particularly vulnerable. The Portuguese dictator Antonio Salazar sought to mitigate this damage by maintaining particularly friendly financial relations with the British government, including increased exports of Portuguese merchandise and services and permission to accumulate credits in Sterling to cover deficits in the balance of payments. This paper gives an improved set of comprehensive statistics for the Anglo-Portuguese and German–Portuguese relationships, reported in Pounds and according to international standards. The reported statistics include the trade in merchandise, services, capital flows, loans and third-party transfers of funds in favour of the British account. When compared with the German statistics, the Anglo-Portuguese figures show the Portuguese government favoured the British in financial relations, an active choice by Salazar to maintain the Portuguese Empire.

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.

scholarly journals Third Party Certification of Agri-Food Supply Chain Using Smart Contracts and Blockchain Tokens

Sensors ◽  
2021 ◽  
Vol 21 (16) ◽  
pp. 5307
Author(s):  
Ricardo Borges dos Santos ◽  
Nunzio Marco Torrisi ◽  
Rodrigo Palucci Pantoni
Keyword(s):  
Supply Chain ◽  
Mobile Application ◽  
Consumer Behaviour ◽  
Economic Incentives ◽  
Third Party ◽  
Smart Contracts ◽  
Proof Of Concept ◽  
Socially Responsible ◽  
The Public ◽  
Blockchain Technology

Every consumer’s buying decision at the supermarket influences food brands to make first party claims of sustainability and socially responsible farming methods on their agro-product labels. Fine wines are often subject to counterfeit along the supply chain to the consumer. This paper presents a method for efficient unrestricted publicity to third party certification (TPC) of plant agricultural products, starting at harvest, using smart contracts and blockchain tokens. The method is capable of providing economic incentives to the actors along the supply chain. A proof-of-concept using a modified Ethereum IGR token set of smart contracts using the ERC-1155 standard NFTs was deployed on the Rinkeby test net and evaluated. The main findings include (a) allowing immediate access to TPC by the public for any desired authority by using token smart contracts. (b) Food safety can be enhanced through TPC visible to consumers through mobile application and blockchain technology, thus reducing counterfeiting and green washing. (c) The framework is structured and maintained because participants obtain economical incentives thus leveraging it´s practical usage. In summary, this implementation of TPC broadcasting through tokens can improve transparency and sustainable conscientious consumer behaviour, thus enabling a more trustworthy supply chain transparency.

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