Reset
Showing 20 of 2,514 academic articles

Assessment of the learning environment among medical students at Tabuk University, Saudi Arabia: a cross-sectional study

Albaraa A. Altowijri • Frontiers in Medicine (2026)

BackgroundThe learning environment (LE) is integral to medical students’ academic performance, emotional well-being, and professional development. Students’ perceptions of their learning environment provide valuable insights for identifying...

DOAJ Open Access (DOAJ) DOI: 10.3389/fmed.2026.1816941

A <italic>&#x03BC;</italic>-Synthesis Framework for Multi-Domain Robust Load Frequency Control Under Concurrent Communication Delays and Parametric Uncertainties

Chadi Nohra, Bechara Nehme, Raymond Ghandour, Ossama Dankar et al. • IEEE Access (2026)

The integration of communication networks into modern power systems introduces variable time delays that degrade the performance of traditional Load Frequency Control (LFC), while the shift towards renewable energy sources increases system ...

DOAJ Open Access (DOAJ) DOI: 10.1109/ACCESS.2026.3675126

The Carbon Budget of Land Conversion: Sugarcane Expansion and Implications for a Sustainable Bioenergy Landscape in Southeastern United States

E. Blanc‐Betes, N. Gomez‐Casanovas, C. J. Bernacchi, E. H. Boughton et al. • GCB Bioenergy (2025)

ABSTRACT The expansion of sugarcane onto land currently occupied by improved (IMP) and semi‐native (SN) pastures will reshape the U.S. bioenergy landscape. We combined biometric, ground‐based and eddy covariance methods to investigate the i...

DOAJ Open Access (DOAJ) DOI: 10.1111/gcbb.70058

A Heuristic Home Electric Energy Management System Considering Renewable Energy Availability

Victor J. Gutierrez-Martinez, Carlos A. Moreno-Bautista, Jose M. Lozano-Garcia, Alejandro Pizano-Martinez et al. • Energies (2019)

This paper presents the development of a heuristic-based algorithm for a Home Electric Energy Management System (HEEMS). The novelty of the proposal resides in the fact that solutions of the Pareto front, minimizing both the energy consumpt...

DOAJ Open Access (DOAJ) DOI: 10.3390/en12040671

Life cycle assessment of a renewable energy generation system with a vanadium redox flow battery in a NZEB household

J.R. Gouveia, E. Silva, T.M. Mata, A. Mendes et al. • Energy Reports (2020)

Buildings are responsible for a significant part of the global energy consumption. Besides the need to improve their energy efficiency, new buildings also need to generate their own energy, preferably from renewable sources, to become more ...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.egyr.2019.08.024

The Mode of Constructing Safe Trajectories of Motion of the Unmanned Aerial Vehicle while Monitoring Power Lines Considering the Influence of their Electromagnetic Fields

Shabanova A.R., Tolstoy I.M., Lebedev I.V. • Problems of the Regional Energetics (2019)

The aim of this paper is to increase the flight safety of an unmanned aerial vehicle that monitors power lines under the negative influence of electromagnetic fields on the on-board equipment. This problem was solved with algorithms for pho...

DOAJ Open Access (DOAJ) DOI: 10.5281/zenodo.3562201

Advancing sovereign ESG performance in China through renewable energy industrialization and government effectiveness

Mohammad Ridwan, Jeremy Ko, Afsana Akther, S. Arafat Ayon et al. • Discover Sustainability (2026)

Abstract This study examines the relationship between renewable energy use, industrialization, governance effectiveness, population growth, and technological innovation, and sovereign environmental, social, and governance (ESG) performance,...

DOAJ Open Access (DOAJ) DOI: 10.1007/s43621-026-04105-9

Nanomaterials for renewable energy production and storage

Xiaobo Chen, Can Li, Michaël Grätzel, Robert M. Kostecki et al. • Chemical Society Reviews (2012)

Over the past decades, there have been many projections on the future depletion of the fossil fuel reserves on earth as well as the rapid increase in green-house gas emissions. There is clearly an urgent need for the development of renewabl...

OPENALEX Open Access DOI: https://doi.org/10.1039/c2cs35230c

Lifecycle Environmental Impact Assessment of an Overtopping Wave Energy Converter Embedded in Breakwater Systems

Nicoletta Patrizi, Riccardo M. Pulselli, Elena Neri, Valentina Niccolucci et al. • Frontiers in Energy Research (2019)

Overtopping breakwater systems are among the most promising technologies for exploiting wave energy to generate electricity. They consist in water reservoirs, embedded in piers, placed on top of ramps, higher than sea-level. Pushed by wave ...

DOAJ Open Access (DOAJ) DOI: 10.3389/fenrg.2019.00032

Sustainable clove-derived nitrogen-doped carbon dots with programmable multimodal fluorescence for metal ion and fluoride sensing

Mallika Phull, Mandeep Kaur, Yashika Singla, Urvashi Singh et al. • RSC Advances (2026)

The development of sustainable fluorescent nanomaterials from renewable biomass represents a promising strategy for environmentally benign chemical sensing. In this work, nitrogen-doped carbon dots (N-CDs) were synthesized from clove biomas...

DOAJ Open Access (DOAJ) DOI: 10.1039/d6ra05591e

Laser-induced porous graphene electrodes from polyketimine membranes for paracetamol sensing

Sabrine Baachaoui, Walid Mabrouk, Khaled Charradi, Bechir Slimi et al. • Royal Society Open Science (2023)

The development of cost-effective materials for fabricating electrodes is crucial for drug, pharmaceutical and environmental applications. This paper presents the synthesis and characterization of a novel polyketimine (PKI) membrane obtaine...

DOAJ Open Access (DOAJ) DOI: 10.1098/rsos.230294

Platinum-free counter electrodes of plasma-modified hybrid nanomaterials for dye-sensitised solar cells

Sule Erten-Ela, Melek Kiristi, Ana Varlec, Ferhat Bozduman et al. • International Journal of Sustainable Energy (2018)

Molybdenum disulphide (MoS2) nanotube and tungsten oxide (W18O49) nanowire were coated with poly(3-hexylthiophene) (P3HT) and poly(3,4-ethylenedioxythiophene) (PEDOT) by a radio frequency (RF: 13.56 MHz)-rotating plasma-modification method ...

DOAJ Open Access (DOAJ) DOI: 10.1080/14786451.2017.1333995