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Showing 20 of 263 academic articles

Evaluation of distilled water quality and production costs from a modified solar still integrated with an outdoor solar water heater

Naseer T. Alwan, S.E. Shcheklein, Obed M. Ali • Case Studies in Thermal Engineering (2021)

Solar water distillation is an effective technology for producing potable water using sustainable energy sources. However, the widespread use of this technology in industrial and domestic applications is hindered by low daily production com...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.csite.2021.101216

Spatial Optimization of Wind and Solar Farm Location in Electric Power Systems Considering Power System Flexibility Characteristics

Oleg Sigitov, Iliya Iliev, Hristo Beloev, Ivan Beloev et al. • Energies (2026)

The rapid development of wind and solar energy necessitates a solution to the problem of the optimal spatial placement of wind farms (WFs) and solar farms (SFs) within electric power systems. The non-stationary generation schedules of WFs a...

DOAJ Open Access (DOAJ) DOI: 10.3390/en19122901

Ultrahigh-peak-power laser pulse compression by a double-smoothing grating compressor

Renjing Chen, Wenhai Liang, Yilin Xu, Shuman Du et al. • High Power Laser Science and Engineering (2025)

Spatial intensity modulation in amplified laser beams, particularly hot spots, critically constrains attainable pulse peak power due to the damage threshold limitations of four-grating compressors. This study demonstrates that the double-sm...

DOAJ Open Access (DOAJ) DOI: 10.1017/hpl.2025.28

Guiding the Self-Organization of Cyber-Physical Systems

Carlos Gershenson, Carlos Gershenson, Carlos Gershenson • Frontiers in Robotics and AI (2020)

Self-organization offers a promising approach for designing adaptive systems. Given the inherent complexity of most cyber-physical systems, adaptivity is desired, as predictability is limited. Here I summarize different concepts and approac...

DOAJ Open Access (DOAJ) DOI: 10.3389/frobt.2020.00041

Period of Arrhythmia Anchored around an Infarction Scar in an Anatomical Model of the Human Ventricles

Daria Mangileva, Pavel Konovalov, Arsenii Dokuchaev, Olga Solovyova et al. • Mathematics (2021)

Rotating nonlinear waves of excitation in the heart cause dangerous cardiac arrhythmias. Frequently, ventricular arrhythmias occur as a result of myocardial infarction and are associated with rotation of the waves around a post-infarction s...

DOAJ Open Access (DOAJ) DOI: 10.3390/math9222911

Global variations in funding and use of hemodialysis accesses: an international report using the ISN Global Kidney Health Atlas

Anukul Ghimire, Samveg Shah, Utkarsh Chauhan, Kwaifa Salihu Ibrahim et al. • BMC Nephrology (2024)

Abstract Background There is a lack of contemporary data describing global variations in vascular access for hemodialysis (HD). We used the third iteration of the International Society of Nephrology Global Kidney Health Atlas (ISN-GKHA) to ...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12882-024-03593-z

A Hybrid Power Plant Based on Renewables and Electrochemical Energy Storage and Generation Systems for Decentralized Electricity Supply of the Northern Territories

A.S. Grigoriev, V.V. Skorlygin, S.A. Grigoriev, D.A. Melnik et al. • International Journal of Electrochemical Science (2018)

The goal of this paper is to present hybrid power plant based on photovoltaic panels, wind turbine and electrochemical energy storage and generation systems for decentralized power supply of the customers located remotely in northern territ...

DOAJ Open Access (DOAJ) DOI: 10.20964/2018.02.54

The Investigation of Impact of Complement Policy for Energy Price Policy Reform on Transport Sector in Iran by Computable General Equilibrium

Roholla Mahdavi • Pizhūhishnāmah-i Iqtiṣād-i Inirzhī-i Īrān (2014)

With regard to the ever-increasing need for energy in current societies to satisfy various requirements, scientists and researchers from different countries, such as Iran, have a basic approach in their agenda to achieve renewable energies،...

DOAJ Open Access (DOAJ)

The significance of the Second Hague Peace conference in the development of the institution of peaceful settlement of international disputes

B.V. Nikolaev, N.A. Pavlova • Известия высших учебных заведений. Поволжский регион: Общественные науки (2025)

Background. Domestic diplomacy and international legal science played a leading role in the formation of the institution of peaceful resolution of international disputes. It was Russia that initiated two Hague Peace Conferences in 1899 and ...

DOAJ Open Access (DOAJ) DOI: 10.21685/2072-3016-2025-2-7

Social Network Analysis of Editorial Board Interlocking Phenomena from the Perspective of Astronomy and Astrophysics Journals

Farshid Danesh, Samaneh Kesht Karan, Lili Banihashemi, Somayeh GhaviDel • International Journal of Information Science and Management (2023)

Editorial board members (EBMs) of journals play a pivotal role in authentic international scientific journals. Editorial Board Interlocking (EBI) phenomenon reflects the effectiveness and importance of the scholarly journal's editorial boar...

DOAJ Open Access (DOAJ) DOI: 10.22034/ijism.2022.1977746.0

Combined Effect of the Parameters of Vacuum Interrupter and L-C Circuit Upon Arc Re-Ignition in HVDC Circuit Breakers

Tamer Eliyan, Ali Saeed Almuflih, Z. M. S. Elbarbary, Fady Wadie • IEEE Access (2024)

The new horizons for HVDC systems and their applications has intensified the research in HVDC protection systems. The HVDC circuit breakers (CB) has been the center of the protection systems with vacuum interrupters (VIs) showcasing a great...

DOAJ Open Access (DOAJ) DOI: 10.1109/ACCESS.2024.3450189

FEATURES using reversible logic operations IN MODELING IRREVERSIBLE COMPUTING on the reversibly COMPUTER

Svetlana Anatolevna Inozemtseva • Современная наука и инновации (2022)

Information can be recorded in the quantum state and are transmitted via the physical channel. The theory of quantum coding and information theory quantum computing related. In any information system ( classical or quantum) will always cont...

DOAJ Open Access (DOAJ)

Computational linguistics and discourse complexology: Paradigms and research methods

Valery Dmitrievich Solovyev, Marina Ivanovna Solnyshkina, Danielle S. McNamara • Russian Journal of Linguistics (2022)

The dramatic expansion of modern linguistic research and enhanced accuracy of linguistic analysis have become a reality due to the ability of artificial neural networks not only to learn and adapt, but also carry out automate linguistic ana...

DOAJ Open Access (DOAJ) DOI: 10.22363/2687-0088-31326

Transformer-Based Abstractive Summarization for Reddit and Twitter: Single Posts vs. Comment Pools in Three Languages

Ivan S. Blekanov, Nikita Tarasov, Svetlana S. Bodrunova • Future Internet (2022)

Abstractive summarization is a technique that allows for extracting condensed meanings from long texts, with a variety of potential practical applications. Nonetheless, today’s abstractive summarization research is limited to testing the mo...

DOAJ Open Access (DOAJ) DOI: 10.3390/fi14030069

National Leaders’ Usage of Twitter in Response to COVID-19: A Sentiment Analysis

Yuming Wang, Stephen M Croucher, Stephen M Croucher, Erika Pearson • Frontiers in Communication (2021)

Twitter is a powerful tool for world leaders to disseminate public health information and to reach citizens. While Twitter, like other platforms, affords world leaders the opportunity to rapidly present information to citizens, the discours...

DOAJ Open Access (DOAJ) DOI: 10.3389/fcomm.2021.732399

THE NORTHERN LABOR MARKET IN A RESOURCE-BASED REGIONAL ECONOMY: THE CASE OF THE KHANTY-MANSIYSK AUTONOMOUS OKRUG—YUGRA

Alexander V. Prokopev, Nadezhda V. Puchkova, Natalya V. Timofeeva, Anna V. Simakova et al. • Север и рынок: формирование экономического порядка (2025)

This study examines the labor market of the Khanty-Mansi Autonomous Okrug–Yugra. The relevance of the research stems from the region’s strong dependence on natural resource reserves and production volumes, driven by the dominance of the min...

DOAJ Open Access (DOAJ) DOI: 10.37614/2220-802X.4.2025.90.004

Computer vision methods and algorithms for automatic detection and classification of objects in decision support systems in agriculture

Yablokova Alena, Kovalev Igor, Kovalev Dmitry, Podoplelova Valeria et al. • E3S Web of Conferences (2024)

The paper examines aspects of developing and formalizing the task of applying computer vision methods and algorithms using OpenCV (implemented in Python version 3.13 notation) for automatic detection and classification of objects in decisio...

DOAJ Open Access (DOAJ) DOI: 10.1051/e3sconf/202454803023