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Showing 20 of 1,679 academic articles

A novel chaotic flower pollination algorithm for function optimization and constrained optimal power flow considering renewable energy sources

Fatima Daqaq, Fatima Daqaq, Mohammed Ouassaid, Salah Kamel et al. • Frontiers in Energy Research (2022)

This study presents an improved chaotic flower pollination algorithm (CFPA) with a view to handle the optimal power flow (OPF) problem integrating a hybrid wind and solar power and generate the optimal settings of generator power, bus volta...

DOAJ Open Access (DOAJ) DOI: 10.3389/fenrg.2022.941705

Sc doped WSe2 monolayer: a candidate for enhanced adsorption and detection of SF6 decomposition gases

Yan Liu, Jinying Zhou, Lei Xu, Jun Long et al. • Journal of Materials Research and Technology (2022)

The fault type of GIS during running is related to the decomposition of the insulating gas SF6. In this paper, the adsorption behavior of three representative gases (SO2, SOF2, and SO2F2) decomposed by SF6 under unfavorable conditions at hi...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.jmrt.2022.01.074

Effect of chemical treatment on the mechanical and thermal performance of flax fiber reinforced aluminium 6082 laminate: a machine learning-enhanced investigation

M. Vinod, B. S. Nithyananda, Shrishail B. Sollapur, Satish Gajbhiv et al. • Scientific Reports (2026)

Abstract This work examined the role of alkaline and epoxy-based surface chemical treatments on the mechanical and thermal properties of flax fiber reinforced Aluminum Alloy 6082 hybrid Fiber Metal Laminates (FMLs), integrated with machine ...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41598-026-58852-w

Strengthening Crypto-1 Cipher Against Algebraic Attacks

Farah Afianti, Ari M. Barmawi • Journal of ICT Research and Applications (2015)

In the last few years, several studies addressed the problem of data security in Mifare Classic. One of its weaknesses is the low random number quality. This causes SAT solver attacks to have lower complexity. In order to strengthen Crypto-...

DOAJ Open Access (DOAJ) DOI: 10.5614/itbj.ict.res.appl.2015.9.1.5

Energy characterization of residential and office buildings in a tropical location

Jorge Cárdenas-Rangel, German Osma-Pinto, Julián Jaramillo-Ibarra • Heliyon (2023)

Governments have established regulations to reduce energy consumption and polluting gas emissions from buildings. In Colombia, the government issued Resolution 0549 in 2015, a regulation that imposed savings percentages on different types o...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.heliyon.2023.e16048

Accurate detection of selective forwarding attack in wireless sensor networks

Qiong Zhang, Wenzheng Zhang • International Journal of Distributed Sensor Networks (2019)

Selective forwarding attack in wireless sensor networks shows great impact on network performance and consumes limited energy resource. In previous countermeasures, it is assumed that all nodes in the communication range can detect misbehav...

DOAJ Open Access (DOAJ) DOI: 10.1177/1550147718824008

Bayesian ANN-Based Prediction and Multi-Objective Optimization of Tribological Behavior in Magnesium Alloy AZ91D at Elevated Temperature Using Pareto GA

Beniyel Muthuraj, Sivapragash Murugesan, Rajesh Rajamony, Michael Thomas Rex Francis • Materials Research (2025)

This study uses an artificial neural network (ANN) model to predict the wear rate and friction coefficient of the magnesium alloy AZ91D, based on experimental data from a pin-on-disc tribometer. The model includes three essential process pa...

DOAJ Open Access (DOAJ) DOI: 10.1590/1980-5373-mr-2025-0388

Development of Power-to-X Catalytic Processes for CO<sub>2</sub> Valorisation: From the Molecular Level to the Reactor Architecture

Luis F. Bobadilla, Lola Azancot, Ligia A. Luque-Álvarez, Guillermo Torres-Sempere et al. • Chemistry (2022)

Nowadays, global climate change is likely the most compelling problem mankind is facing. In this scenario, decarbonisation of the chemical industry is one of the global challenges that the scientific community needs to address in the immedi...

DOAJ Open Access (DOAJ) DOI: 10.3390/chemistry4040083

Higher Education, Innovation, and Regional Economic Development in Kazakhstan: Panel-Data and Difference-in-Differences Evidence, 2010–2024

Aigerim Lambekova, Azamat Zhanseitov, Yuliya Sayfullina, Valentina Berezyuk et al. • Economies (2026)

This study examines the relationship between higher education development, innovation capacity, and regional economic performance across Kazakhstan’s regions during the 2010–2024 period. The analysis is motivated by the growing role of high...

DOAJ Open Access (DOAJ) DOI: 10.3390/economies14070261

A review of photovoltaic/thermal (PV/T) incorporation in the hydrogen production process

Hussein A. Kazem, Miqdam T. Chaichan, Ali H.A. Al-Waeli, K. Sopian et al. • Global Energy Interconnection (2025)

Integrating the photovoltaic/thermal (PV/T) system in green hydrogen production is an improvement in sustainable energy technologies. In PV/T systems, solar energy is converted into electricity and thermal energy simultaneously using hot wa...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.gloei.2025.03.001

Analysis and optimal design of low frequency road noise based on new energy MPV vehicle

BIN Shibo; XIE Yunhe; ZHENG Weiguang; WEI Shangjun; GAO Ting; LIU Xuewen • Nantong Daxue xuebao. Ziran kexue ban (2025)

Low-frequency road noise is a primary contributor to in-cabin noise and directly affects overall vehicle comfort. With the rapid development of electric vehicles, this issue has attracted increasing attention from the automotive industry. T...

DOAJ Open Access (DOAJ) DOI: 10.12194/j.ntu.20240724001

Torque-Preserving Flux-Weakening Control for IPMSM Based on q-Axis Current Compensation and Adaptive Voltage Regulation

Xiao Ju, Bo Huang, Shen Xu, Jishun Neng et al. • World Electric Vehicle Journal (2026)

A torque-preserving flux-weakening control strategy combining q-axis current compensation with a bandwidth-based speed-adaptive voltage regulator is proposed for interior permanent magnet synchronous motor (IPMSM) drives. The conventional n...

DOAJ Open Access (DOAJ) DOI: 10.3390/wevj17090444

Exogenous gibberellin and spermidine optimize flowering time and ornamental quality by regulating antioxidant capacity, soluble nutrient levels, and endogenous hormone balance of Primula forbesii

Zhuo Lv, Keying Ding, Wenbao Ma, Wenyu Li et al. • Scientia Horticulturae (2026)

Primula forbesii Franch. is a biennial ornamental species increasingly used in flower landscape design, potted displays, and cut flower production. Nevertheless, studies on its flowering regulation remain limited. This study investigated th...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.scienta.2026.114731

Water conservation in arid and semi-arid basins exhibits a nonlinear effect on water quality improvement

Junde Ming, Rui Xia, Lina Li, Yao Wang et al. • Journal of Hydrology: Regional Studies (2026)

Study region: The Weihe River Basin (WRB), a typical arid and semi-arid basin in China. Study focus: Water conservation regulates hydrological processes and pollutant transport, yet the response mechanisms of water quality to water conserva...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.ejrh.2026.104111

Techno-economic feasibility analyses of grid- connected solar photovoltaic power plants for small scale industries of Punjab, Pakistan

Monib Ahmad, Abraiz Khattak, Abdul Kashif Janjua, Ahmad Aziz Alahmadi et al. • Frontiers in Energy Research (2022)

The globally soaring energy prices and electricity shortfall are major hurdles in the economic development of Pakistan. To cope with periodic power outages, small and medium enterprise (SME) business owners have to fall back on alternate po...

DOAJ Open Access (DOAJ) DOI: 10.3389/fenrg.2022.1028310

Evaluation of the performance of several cultivars of bean (Vicia faba L.) for yield and its components under three different cultivation distances

Mohammed Alatawi, Yousif Abd Alhamed Alhajoj, Raeed Mejbel Abdullah • Tikrit Journal for Agricultural Sciences (2024)

This study was conducted in the center of Kirkuk governorate in the farms of a farmer for the agricultural season 2020/2021. The study included two factors, the first is the distance between the meadows, where the following distances were u...

DOAJ Open Access (DOAJ) DOI: 10.25130/tjas.24.3.20