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296 Results Found

  • Article
  • Open Access
13 Citations
4,396 Views
21 Pages

Stakeholders’ Preferences towards Contract Attributes: Evidence from Rice Production in Vietnam

  • Mai Chiem Tuyen,
  • Prapinwadee Sirisupluxana,
  • Isriya Bunyasiri and
  • Pham Xuan Hung

16 March 2022

Contract farming is typically considered an appropriate measure for small-scale farmers to solve their constraints and problems. However, despite positive effects, low participation in and high dropout rates from contract farming schemes remain chall...

  • Article
  • Open Access
3 Citations
3,078 Views
29 Pages

The Impact of the Expansion and Contraction of China Cities on Carbon Emissions, 2002–2021, Evidence from Integrated Nighttime Light Data and City Attributes

  • Jiaqi Qian,
  • Yanning Guan,
  • Tao Yang,
  • Aoming Ruan,
  • Wutao Yao,
  • Rui Deng,
  • Zhishou Wei,
  • Chunyan Zhang and
  • Shan Guo

3 September 2024

Exploring the impact of urbanization on carbon emissions is crucial for formulating effective emission reduction policies. Using nighttime light data and attribute data from 68 Chinese cities (2002–2021), this paper develops an urban developmen...

  • Article
  • Open Access
9 Citations
2,842 Views
23 Pages

With the rapid development of Internet of Things technology, sharing data safely and efficiently in different Internet of Things enterprises is becoming increasingly urgent. Traditional schemes usually use third-party centralized cloud storage and a...

  • Article
  • Open Access
1,396 Views
15 Pages

Blockchain-Enabled GDPR Compliance Enforcement for IIoT Data Access

  • Amina Isazade,
  • Ali Malik and
  • Mohammed B. Alshawki

The General Data Protection Regulation (GDPR) imposes additional demands and obligations on service providers that handle and process personal data. In this paper, we examine how advanced cryptographic techniques can be employed to develop a privacy-...

  • Article
  • Open Access
7 Citations
2,368 Views
13 Pages

Green contracting mechanisms are utilized to integrate sustainable and environmentally protective goals into business objectives. This study proposes a framework for the design of green contract mechanisms in forestry supply chain management. We assu...

  • Article
  • Open Access
19 Citations
4,084 Views
22 Pages

9 August 2023

The reliable circulation of automotive supply chain data is crucial for automotive manufacturers and related enterprises as it promotes efficient supply chain operations and enhances their competitiveness and sustainability. However, with the increas...

  • Review
  • Open Access
9 Citations
3,021 Views
20 Pages

Advancing Compliance with HIPAA and GDPR in Healthcare: A Blockchain-Based Strategy for Secure Data Exchange in Clinical Research Involving Private Health Information

  • Sabri Barbaria,
  • Abderrazak Jemai,
  • Halil İbrahim Ceylan,
  • Raul Ioan Muntean,
  • Ismail Dergaa and
  • Hanene Boussi Rahmouni

15 October 2025

Background: Healthcare data interoperability faces significant barriers, including regulatory compliance complexities, institutional trust deficits, and technical integration challenges. Current centralized architectures demonstrate inadequate mechan...

  • Article
  • Open Access
5 Citations
2,704 Views
22 Pages

A New Blockchain-Based Multi-Level Location Secure Sharing Scheme

  • Qiuhua Wang,
  • Tianyu Xia,
  • Yizhi Ren,
  • Lifeng Yuan and
  • Gongxun Miao

4 March 2021

Currently, users’ location information is collected to provide better services or research. Using a central server to collect, store and share location information has inevitable defects in terms of security and efficiency. Using the point-to-point s...

  • Review
  • Open Access
19 Citations
6,296 Views
27 Pages

Empirical Evaluation of Privacy Efficiency in Blockchain Networks: Review and Open Challenges

  • Aisha Zahid Junejo,
  • Manzoor Ahmed Hashmani and
  • Mehak Maqbool Memon

29 July 2021

With the widespread of blockchain technology, preserving the anonymity and confidentiality of transactions have become crucial. An enormous portion of blockchain research is dedicated to the design and development of privacy protocols but not much ha...

  • Article
  • Open Access
33 Citations
5,003 Views
16 Pages

SEMRAchain: A Secure Electronic Medical Record Based on Blockchain Technology

  • Halima Mhamdi,
  • Manel Ayadi,
  • Amel Ksibi,
  • Amal Al-Rasheed,
  • Ben Othman Soufiene and
  • Sakli Hedi

6 November 2022

A medical record is an important part of a patient’s follow-up. It comprises healthcare professionals’ views, prescriptions, analyses, and all information about the patient. Several players, including the patient, the doctor, and the phar...

  • Article
  • Open Access
590 Views
15 Pages

A Blockchain Architecture for Hourly Electricity Rights and Yield Derivatives

  • Volodymyr Evdokimov,
  • Anton Kudin,
  • Vakhtanh Chikhladze and
  • Volodymyr Artemchuk

24 December 2025

The article presents a blockchain-based architecture for decentralized electricity trading that tokenizes energy delivery rights and cash-flows. Energy Attribute Certificates (EACs) are implemented as NFTs, while buy/sell orders are encoded as ERC-11...

  • Article
  • Open Access
13 Citations
3,218 Views
32 Pages

SDACS: Blockchain-Based Secure and Dynamic Access Control Scheme for Internet of Things

  • Qinghua Gong,
  • Jinnan Zhang,
  • Zheng Wei,
  • Xinmin Wang,
  • Xia Zhang,
  • Xin Yan,
  • Yang Liu and
  • Liming Dong

2 April 2024

With the rapid growth of the Internet of Things (IoT), massive terminal devices are connected to the network, generating a large amount of IoT data. The reliable sharing of IoT data is crucial for fields such as smart home and healthcare, as it promo...

  • Article
  • Open Access
62 Citations
9,710 Views
26 Pages

An Attribute-Based Access Control for IoT Using Blockchain and Smart Contracts

  • Syed Yawar Abbas Zaidi,
  • Munam Ali Shah,
  • Hasan Ali Khattak,
  • Carsten Maple,
  • Hafiz Tayyab Rauf,
  • Ahmed M. El-Sherbeeny and
  • Mohammed A. El-Meligy

23 September 2021

With opportunities brought by the Internet of Things (IoT), it is quite a challenge to maintain concurrency and privacy when a huge number of resource-constrained distributed devices are involved. Blockchain have become popular for its benefits, incl...

  • Article
  • Open Access
15 Citations
3,332 Views
22 Pages

13 August 2022

Searchable encryption enables users to enjoy search services while protecting the security and privacy of their outsourced data. Blockchain-enabled searchable encryption delivers the computing processes that are executed on the server to the decentra...

  • Article
  • Open Access
8 Citations
3,192 Views
27 Pages

A Novel Blockchain-Based Encryption Model to Protect Fog Nodes from Behaviors of Malicious Nodes

  • Mohammed Alshehri,
  • Brajendra Panda,
  • Sultan Almakdi,
  • Abdulwahab Alazeb,
  • Hanan Halawani,
  • Naif Al Mudawi and
  • Riaz U. Khan

16 December 2021

The world has experienced a huge advancement in computing technology. People prefer outsourcing their confidential data for storage and processing in cloud computing because of the auspicious services provided by cloud service providers. As promising...

  • Article
  • Open Access
5 Citations
3,110 Views
20 Pages

5 November 2023

Digital transformation of the logistics industry triggered by the widespread use of Internet of Things (IoT) technology has prompted a significant revolution in logistics companies, further bringing huge dividends to society. However, the concurrent...

  • Article
  • Open Access
46 Citations
12,384 Views
26 Pages

11 July 2019

Contract farming is considered as institutional arrangements that manage the coordination of production and distribution between smallholder farmers and agro-industrial firms. Under the market reforms and industrialization process, contract farming l...

  • Article
  • Open Access
12 Citations
3,273 Views
17 Pages

24 February 2023

In view of the principal–agent relationship between local government and pollution enterprise in environmental governance, this paper established a multitask principal–agent model, gave the optimal contract form of local government incent...

  • Article
  • Open Access
4 Citations
1,762 Views
15 Pages

11 August 2023

This study investigates the influence of expectations and trust on farmers’ decisions regarding contractual choices in land transfer. The dataset used for analysis consists of 1101 households in a province in western China. The research focuses...

  • Article
  • Open Access
3 Citations
1,624 Views
23 Pages

Today, with the presence of 5G communication systems, including Internet of Things (IoT) technology, there is a high demand for mobile devices (especially smartphones, tablets, wearable technology, and so on). Regarding this proliferation and high de...

  • Article
  • Open Access
16 Citations
12,064 Views
20 Pages

A Blockchain and Zero Knowledge Proof Based Data Security Transaction Method in Distributed Computing

  • Bowei Zhang,
  • Heng Pan,
  • Kunyang Li,
  • Ying Xing,
  • Jiaxiang Wang,
  • Dongdong Fan and
  • Wenjie Zhang

30 October 2024

In distributed computing, data trading mechanisms are essential for ensuring the sharing of data across multiple computing nodes. Nevertheless, they currently encounter considerable obstacles, including low accuracy in matching trading parties, ensur...

  • Article
  • Open Access
19 Citations
5,559 Views
22 Pages

Hyperledger Fabric Access Control for Industrial Internet of Things

  • Dong-Her Shih,
  • Ting-Wei Wu,
  • Ming-Hung Shih,
  • Guan-Wei Chen and
  • David C. Yen

18 March 2022

The Industrial Internet of Things (IIoT) plays an important role in Industry 4.0, but the existing IIoT systems could be vulnerable to a single point of failure and malicious attacks, failing to provide reliable services. IIoT devices have some parti...

  • Article
  • Open Access
37 Citations
9,794 Views
26 Pages

Smart Contract Engineering

  • Kai Hu,
  • Jian Zhu,
  • Yi Ding,
  • Xiaomin Bai and
  • Jiehua Huang

2 December 2020

A smart contract is the algorithmic description of a contractual transaction protocol that is automatically executed together with the information provided by its parties. It is written in a simplified programming language that is specific to a parti...

  • Article
  • Open Access
6 Citations
2,387 Views
13 Pages

Numerical Model Validation of the Blood Flow through a Microchannel Hyperbolic Contraction

  • Filipe Barbosa,
  • Jorge Dueñas-Pamplona,
  • Cristiano S. Abreu,
  • Mónica S. N. Oliveira and
  • Rui A. Lima

30 September 2023

A computational fluid dynamics (CFD) model of blood flow through hyperbolic contraction with a discrete phase model (DPM) was experimentally validated. For this purpose, the positions and velocities of red blood cells (RBCs) flowing in a microchannel...

  • Article
  • Open Access
2 Citations
2,833 Views
17 Pages

Adverse medical events (AMEs) often occur in the healthcare workplace, and studies have shown that a positive atmosphere can reduce their incidence by increasing peer report intention. However, few studies have investigated the effect and action mech...

  • Article
  • Open Access
1 Citations
1,841 Views
19 Pages

29 June 2023

Australia’s tropical savannas are a vast landscape of grasslands with high biodiversity value. Effective biodiversity conservation in this landscape requires private contributions to complement the under-sized formal conservation estate. The la...

  • Article
  • Open Access
3,788 Views
14 Pages

25 October 2023

Social contract theory has long been at the center of political theory, and one of the inheritors of the social contract tradition, liberalism, reverberates through contemporary political life. And yet, an overlooked element of liberalism are the bib...

  • Article
  • Open Access
5 Citations
7,947 Views
25 Pages

15 April 2014

In 2006, the Netherlands commenced market based reforms in its health care system. The reforms included selective contracting of health care providers by health insurers. This paper focuses on how health insurers may increase their market share on th...

  • Article
  • Open Access
8 Citations
2,380 Views
28 Pages

MedAccessX: A Blockchain-Enabled Dynamic Access Control Framework for IoMT Networks

  • Guoyi Shi,
  • Minfeng Qi,
  • Qi Zhong,
  • Ningran Li,
  • Wanxin Gao,
  • Lefeng Zhang and
  • Longxiang Gao

17 March 2025

The integration of Internet of Things (IoT) devices in healthcare has enhanced medical efficiency but poses challenges such as data privacy risks and internal abuse. Traditional IoT data access frameworks suffer from centralization, limited scalabili...

  • Article
  • Open Access
3 Citations
1,954 Views
16 Pages

Consumer Preferences for Wood-Pellet-Based Green Pricing Programs in the Eastern United States

  • Sydney Oluoch,
  • Pankaj Lal,
  • Andres Susaeta,
  • Meghann Smith and
  • Bernabas Wolde

10 April 2024

Co-firing wood pellets with coal is an attractive alternative energy generation method with economic, social, and environmental benefits for the US energy generation sector. One way to sustainably use wood pellets for co-firing is to create consumer-...

  • Article
  • Open Access
7 Citations
3,377 Views
14 Pages

13 November 2020

The increasing request for food sustainability is affecting the pasta sector in Italy. This phenomenon introduces different sources of uncertainties that, in turn, put pressure on all the stages of the supply chain, with a consequent emerging need fo...

  • Viewpoint
  • Open Access
1 Citations
905 Views
23 Pages

6 May 2025

Contracting farmers are the main entities in cultivated land protection. From the perspective of contractual rights, improving the ecological compensation standards for cultivated land under the “Separation of Three Rights” system helps c...

  • Article
  • Open Access
1,245 Views
24 Pages

Ascertaining Susceptibilities in Smart Contracts: A Quantum Machine Learning Approach

  • Amulyashree Sridhar,
  • Kalyan Nagaraj,
  • Shambhavi Bangalore Ravi and
  • Sindhu Kurup

4 September 2025

The current research aims to discover applications of QML approaches in realizing liabilities within smart contracts. These contracts are essential commodities of the blockchain interface and are also decisive in developing decentralized products. Bu...

  • Article
  • Open Access
19 Citations
5,650 Views
12 Pages

Myocardial Contraction during the Diastolic Isovolumetric Period: Analysis of Longitudinal Strain by Means of Speckle Tracking Echocardiography

  • Vicente Mora,
  • Ildefonso Roldán,
  • Elena Romero,
  • Assumpció Saurí,
  • Diana Romero,
  • Jana Pérez-Gozalbo,
  • Natalia Ugalde,
  • Javier Bertolín,
  • Melisa Rodriguez-Israel and
  • Jorge A. Lowenstein
  • + 1 author

Background: According to the ventricular myocardial band model, the diastolic isovolumetric period is a contraction phenomenon. Our objective was to employ speckle-tracking echocardiography (STE) to analyze myocardial deformation of the left ventricl...

  • Article
  • Open Access
4 Citations
2,671 Views
22 Pages

18 July 2023

Model evaluation is critical in deep learning. However, the traditional model evaluation approach is susceptible to issues of untrustworthiness, including insecure data and model sharing, insecure model training, incorrect model evaluation, centraliz...

  • Proceeding Paper
  • Open Access
817 Views
4 Pages

Efficient Network Representation: Graph Contraction Strategies in Water Distribution Networks

  • Daniel Barros,
  • Jordana Alaggio,
  • Gustavo Meirelles,
  • Bruno Brentan and
  • Edevar Luvizotto

4 September 2024

Water distribution networks (WDNs) are becoming more interconnected with other networks, such as energy and the Internet networks, complicating their analysis. This article proposes an alternative method for reducing the WDN search space and skeleton...

  • Article
  • Open Access
12 Citations
5,873 Views
21 Pages

31 December 2021

Innovation is a very important attribute of energy companies. Its level largely depends on employees’ attitudes and behaviours, which are determined on the one hand by individual factors (e.g., psychological contract) and on the other hand by o...

  • Review
  • Open Access
19 Citations
8,269 Views
17 Pages

29 January 2023

The research program on oxytocin started in 1895, when Oliver and Schafer reported that a substance extracted from the pituitary gland elevates blood pressure when injected intravenously into dogs. Dale later reported that a neurohypophysial substanc...

  • Communication
  • Open Access
26 Citations
3,277 Views
9 Pages

29 April 2021

Superhydrophobic materials are significant for engineering applications in the anti-icing field because of their non-wetting property. The interface physical mechanisms of non-wetting properties are important to promote real applications of superhydr...

  • Article
  • Open Access
17 Citations
4,765 Views
16 Pages

14 July 2023

Proactivity is a particularly important attribute of knowledge-intensive companies, where work that requires enhancing the potential of knowledge-intensive employees in a sustainable working environment is crucial. Another important challenge for the...

  • Review
  • Open Access
20 Citations
6,295 Views
28 Pages

9 August 2023

Despite the lack of blockchain systems being utilized in modern IoT environments, the prevalence of blockchain technology is increasing, due to its high level of security and accountability. The integration of blockchain technology and access control...

  • Article
  • Open Access
17 Citations
3,682 Views
23 Pages

Blockchain-Based Access Control in a Globalized Healthcare Provisioning Ecosystem

  • Stavros Salonikias,
  • Marie Khair,
  • Theodoros Mastoras and
  • Ioannis Mavridis

25 August 2022

The COVID-19 pandemic further outlined the importance of global healthcare services provisioning for diagnosing and treating patients who tend to travel and live for large periods away from home and can be anywhere at any given time. Advances in tech...

  • Article
  • Open Access
2 Citations
4,018 Views
11 Pages

28 December 2023

Warranty is one of the most important attributes of any product, from both manufacturer and consumer points of view. Although the retailers connect manufacturers to customers by selling goods, traditionally, they have isolated themselves from warrant...

  • Article
  • Open Access
7 Citations
2,544 Views
24 Pages

24 April 2024

The implementation of prefabricated housing (PH) has become prevalent in China recently due to its advantages in enhancing production and energy-saving efficiency within the construction system. However, stakeholders may not always fully realize the...

  • Article
  • Open Access
1 Citations
2,045 Views
12 Pages

Intermittent Preventive Treatment of Malaria in Pregnancy and the Impact on Neonates in African Countries as Assessed by Entropy Weight and TOPSIS Methods

  • Maria Tzitiridou-Chatzopoulou,
  • Georgia Zournatzidou,
  • Eirini Orovou,
  • Lazaros Lavasidis,
  • Arsenios Tsiotsias,
  • Panagiotis Eskitzis and
  • Dimitrios Papoutsis

18 October 2024

Background/Objectives: In regions of Africa with a high prevalence of malaria, pregnant women in their first or second trimester should be administered intermittent preventive treatment in pregnancy (IPTp). However, infants may contract malaria despi...

  • Article
  • Open Access
3 Citations
2,046 Views
21 Pages

17 August 2023

In serving as a pivotal strategy for curbing urban sprawl, large-scale urban green belts, being a significant constituent of the urban green space, have been ubiquitously employed in the scheming and fabrication of green space systems in global megac...

  • Article
  • Open Access
5,385 Views
16 Pages

29 April 2021

There exists a consensus in academic literature regarding the centrality of engraved prototypes for the production of colonial paintings in the Spanish Americas. In Peru, these artistic models were written into legal contracts between painters and cl...

  • Article
  • Open Access
10 Citations
7,375 Views
13 Pages

Kinetics of Holographic Recording and Spontaneous Erasure Processes in Light-Sensitive Liquid Crystal Elastomers

  • Marko Gregorc,
  • Hui Li,
  • Valentina Domenici,
  • Gabriela Ambrožič,
  • Martin Čopič and
  • Irena Drevenšek-Olenik

25 April 2012

The optical mechanism for imprinting one-dimensional grating structures into thin films of a light-sensitive monodomain liquid crystal elastomer is investigated by analyzing the time dependence of optical diffraction properties. The recording kinetic...

  • Review
  • Open Access
2 Citations
2,569 Views
16 Pages

The developmental changes in the excitation–contraction mechanisms of the ventricular myocardium of small animals (guinea pig, rat, mouse) and their sympathetic regulation will be summarized. The action potential duration monotonically decrease...

  • Article
  • Open Access
7 Citations
3,590 Views
18 Pages

TSInsight: A Local-Global Attribution Framework for Interpretability in Time Series Data

  • Shoaib Ahmed Siddiqui,
  • Dominique Mercier,
  • Andreas Dengel and
  • Sheraz Ahmed

5 November 2021

With the rise in the employment of deep learning methods in safety-critical scenarios, interpretability is more essential than ever before. Although many different directions regarding interpretability have been explored for visual modalities, time s...

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