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Performance prediction and optimization of a high-efficiency tessellated diamond fractal MIMO antenna for terahertz 6G communication using machine learning approaches

Kamal Hossain Nahin, Jamal Hossain Nirob, Akil Ahmad Taki, Md Ashraful Haque et al. • Scientific Reports (2025)

Abstract This paper introduces the design and exploration of a compact, high-performance multiple-input multiple-output (MIMO) antenna for 6G applications operating in the terahertz (THz) frequency range. Leveraging a meta learner-based sta...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41598-025-88174-2

Lightweight Anonymous Group Authentication and Quantum-Cloud Key Distribution Based on PUF for Classical Network Environments

Huanjie Zhang, Yang Chen, Shenghao Chen, Zilong Zhao et al. • Sensors (2026)

With the rapid development of quantum computing, in response to its disruptive threats to traditional cryptosystems and the urgent demand for lightweight and highly scalable secure group communication among resource-constrained devices in l...

DOAJ Open Access (DOAJ) DOI: 10.3390/s26154840

Optical Quantum Computing

Jeremy L. O’Brien • Science (2007)

In 2001, all-optical quantum computing became feasible with the discovery that scalable quantum computing is possible using only single-photon sources, linear optical elements, and single-photon detectors. Although it was in principle scala...

OPENALEX Open Access DOI: https://doi.org/10.1126/science.1142892

Quantum computing

Andrew M. Steane • Reports on Progress in Physics (1998)

The subject of quantum computing brings together ideas from classical information theory, computer science, and quantum physics. This review aims to summarize not just quantum computing, but the whole subject of quantum information theory. ...

OPENALEX Open Access DOI: https://doi.org/10.1088/0034-4885/61/2/002

Dendritic boron and nitrogen doped high-entropy alloy porous carbon fibers for high-efficiency hydrogen evolution reaction

Jin-Hua Liu, Jie Zheng, Mang Niu, Xuehao Li et al. • iScience (2024)

Summary: Among various electrocatalysts, high-entropy alloys (HEAs) have gained significant attention for their unique properties and excellent catalytic activity in the hydrogen evolution reaction (HER). However, the precise synthesis of H...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.isci.2024.109616

Multi-regional energy sharing approach for shared energy storage and local renewable energy resources considering efficiency optimization

Wenyang Deng, Dongliang Xiao, Mingli Chen, Muhammad Faizan Tahir et al. • International Journal of Electrical Power & Energy Systems (2025)

As distributed photovoltaic and shared energy storage systems expanded on the user side, developing an energy-sharing mechanism across different regions became crucial for fully utilizing local renewable energy resources and maximizing the ...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.ijepes.2025.110592

Voltage Stability and Power Sharing Control of Distributed Generation Units in DC Microgrids

Kafeel Ahmed, Irfan Hussain, Mehdi Seyedmahmoudian, Alex Stojcevski et al. • Energies (2023)

Advancements in power conversion efficiency and the growing prevalence of DC loads worldwide have underscored the importance of DC microgrids in modern energy systems. Addressing the challenges of power-sharing and voltage stability in thes...

DOAJ Open Access (DOAJ) DOI: 10.3390/en16207038

Empowering Sustainability: The Crucial Role of IoT-Enabled Distributed Learning Systems in Reducing Carbon Footprints

Anjana M S, Aryadevi Remanidevi Devidas, Maneesha Vinodini Ramesh • IEEE Access (2025)

Electrical energy plays a pivotal role in modern society by powering homes, industries, and transportation systems. However, the production of electricity is associated with significant carbon emissions, primarily from fossil fuel-based pow...

DOAJ Open Access (DOAJ) DOI: 10.1109/ACCESS.2025.3539333

Pore-Throat-Adaptive Transport and Flow-Redistribution Mechanisms of Deformable Hydrogel Particles in Tight Reservoirs of the Ordos Basin

Hongguang Li, Hujun Gong • Gels (2026)

Tight reservoirs commonly exhibit strong pore-throat confinement and flow heterogeneity, which cause injected water to preferentially migrate through connected high-conductivity pathways while a large fraction of movable fluids remains unde...

DOAJ Open Access (DOAJ) DOI: 10.3390/gels12100924

Load Sharing in Distributed Systems

Yung-Terng Wang, Morris • IEEE Transactions on Computers (1985)

An important part of a distributed system design is the choice of a load sharing or global scheduling strategy. A comprehensive literature survey on this topic is presented. We propose a taxonomy of load sharing algorithms that draws a basi...

OPENALEX DOI: https://doi.org/10.1109/tc.1985.1676564

The effect of government decisions on the efficiency of the investment funds market in Poland

Dorota Witkowska, Krzysztof Kompa, Grzegorz Mentel • Journal of Business Economics and Management (2019)

Polish government introduced crucial changes concerning conditions of the pension funds functioning in the years 2011–2014. This article focuses on explaining the impact of these political decisions on efficiency of investment fund market i...

DOAJ Open Access (DOAJ) DOI: 10.3846/jbem.2019.9861

Asymptotic Statistics

Aad van der Vaart • Cambridge University Press eBooks (1998)

This book is an introduction to the field of asymptotic statistics. The treatment is both practical and mathematically rigorous. In addition to most of the standard topics of an asymptotics course, including likelihood inference, M-estimati...

OPENALEX DOI: https://doi.org/10.1017/cbo9780511802256

A Novel Slow-Growing Gross Error Detection Method for GNSS/Accelerometer Integrated Deformation Monitoring Based on State Domain Consistency Theory

Ao Sun, Qiuzhao Zhang, Zhangjun Yu, Xiaolin Meng et al. • Remote Sensing (2022)

The accuracy and integrity of structural deformation monitoring can be improved by the GNSS/accelerometer integrated system, and gross error detection is the key to further improving the reliability of GNSS/accelerometer monitoring. Traditi...

DOAJ Open Access (DOAJ) DOI: 10.3390/rs14194758

A Bloom filter-based dynamic symmetric searchable encryption scheme over cloud data

Xing Zhang, Haozhe Wang, Junqing Lu, Tianning Li et al. • Cybersecurity (2026)

Abstract In this paper, a searchable encryption scheme for cloud data is proposed to address the limitations of existing schemes, which suffer from inefficient index construction and search process, as well as a lack of support for dynamic ...

DOAJ Open Access (DOAJ) DOI: 10.1186/s42400-025-00448-4

Structural analysis of inclusive metaverse spaces for the sustainability of future smart cities (Case study: Tehran Metropolis)

Leily Bakhtiari • جغرافیا و آینده پژوهی منطقه‌ای (2026)

The Metaverse, as a hypothetical virtual environment utilizing advanced technologies such as Artificial Intelligence and the Internet of Things, has the potential to contribute to the sustainability of future smart cities, enhancing urban e...

DOAJ Open Access (DOAJ) DOI: 10.30466/grfs.2025.56183.1118