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Artikel Jurnal
Experimental investigation of PCM–geothermal integrated roof cooling systems for enhanced thermal performance
In Iraq, solar radiation on building roofs can exceed 1100 W/m2, affecting indoor thermal comfort. This study aims to reduce the heat gain in buildings in hot climates. Thus, it introduces an experimental method to enhance roof thermal performance by integrating phase change material in aluminum…
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Artikel Jurnal
Recent advances in integrating geothermal energy into building HVAC systems: Focus on energy pile applications
Geothermal energy has become a viable renewable resource in the global drive for carbon neutrality and increased energy efficiency, especially in energy-intensive industries like Heating, Ventilating, and Air Conditioning. It is perfect for incorporation into sustainable energy systems because of…
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Artikel Jurnal
Employing novel machine learning to achieve precise Klinkenberg slippage factor predictions in gas reservoir characterization
Accurate prediction of the Klinkenberg slippage factor (KSF) is crucial for characterizing low permeability gas reservoirs, but conventional laboratory determination methods are prohibitively costly and time-consuming, constituting a major research gap. This study addresses this limitation by…
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Artikel Jurnal
Organic-inorganic composite phase change gels for cold chain preservation of fruits and vegetables
In recent years, phase change materials have attracted increasing attention for cold chain logistics. However, many conventional organic or inorganic phase change materials suffer from critical limitations in low-temperature applications, including severe supercooling, poor cycling stability…
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Artikel Jurnal
Quantifying economic viability and carbon mitigation potential of carbon-dioxide sequestration in shale reservoirs using machine learning
The increasing concentration of atmospheric CO2 since the Industrial Revolution has driven research into subsurface storage as a viable solution. This study focuses on developing machine learning models to estimate net present value and carbon footprint in a combined gas production and CO2…
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Artikel Jurnal
A new approach to hybrid renewable energy: Boosting economic and environmental efficiency with smart management in arid and desert environments
This paper presents the development and optimization of a hybrid energy system integrating solar and wind power with diesel generators as a backup, specifically tailored for arid, semi-arid, and desert climates. The system is supported by a dual-phase strategy that combines intelligent load…
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Artikel Jurnal
An orthogonal transcription system enables high-efficiency rescue of measles virus-based vaccine vectors against multiple pathogens
Recombinant measles virus (rMeV) vectors are promising platforms for vaccine development against emerging infectious diseases due to their safety, stability, and potent immunogenicity. However, conventional rMeV rescue systems frequently exhibit low efficiency, thereby constraining their…
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Artikel Jurnal
Transfer of chloroplast rbcL and atpB genes to nucleus enables partial rescue of photoautotrophic growth of Chlamydomonas
An ancient cyanobacterium has evolved through endosymbiosis to form extant chloroplasts of eukaryotic algae and higher plants. During this process, most genes have been transferred to the nuclear genomes. The chloroplast gene sets of different photosynthetic species are relatively conserved yet…
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Artikel Jurnal
Techno-economic analysis of biogas production: a literature review and bibliometric analysis
The accelerating global energy transition and the development of the circular economy have established biogas as a key renewable energy source that can reduce greenhouse gas emissions, improve waste management, and contribute to the Sustainable Development Goals. From this perspective, the…
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Artikel Jurnal
Bubble evolution and stability of foamy bitumen in the puff stage of CO2 huff-n-puff process: An image-based analysis
The CO2 huff-n-puff process offers dual benefits by enhancing bitumen recovery while contributing to carbon capture, utilization, and storage. This study investigates the evolution and stability of CO2 gas bubbles during the puff stage and their contribution to the volumetric expansion of foamy…
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Artikel Jurnal
New insights into lithium recovery from unconventional water resources
The recovery of lithium from unconventional water resources is a complex physicochemical process influenced by numerous non-linear variables, making the optimization of adsorption materials through traditional experimental methods time-consuming and costly. This study aims to develop a robust…
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Artikel Jurnal
Multi-horizon solar irradiance forecasting under variable sky conditions through CNN–TCN feature learning and XGBoost
Multi-horizon solar irradiance nowcasting is highly sensitive to rapidly varying atmospheric conditions. Traditional statistical models such as persistence and autoregressive integrated moving average are computationally efficient but often degrade under strong atmospheric variability, whereas…
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Artikel Jurnal
QLRUN: Integrating Q-learning and covariance matrix learning into Runge–Kutta optimization for engineering design problems
This paper proposes a hybrid metaheuristic Q-learning Runge–Kutta Optimization (QLRUN) for solving complex, high-dimensional, rotated, and constrained engineering optimization problems. The proposed framework integrates the gradient-guided search mechanism of the Runge–Kutta Optimization (RUN)…
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Artikel Jurnal
Geochemical characteristics and constraints on organic matter enrichment of Paleocene shales in a typical oil-rich lacustrine rift sag, Bohai Bay basin
Unraveling the mechanisms of organic matter (OM) enrichment in lacustrine rift basins is critical for optimizing shale oil exploration in continental sedimentary systems. However, these mechanisms remain poorly understood due to complex interactions among paleoenvironmental factors. The Gubei area…
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Artikel Jurnal
Flexible scheduling of renewable energy systems with building thermal inertia using Chaotic Harris Hawks optimization
The increasing integration of renewable energy sources such as solar, wind, and biomass into smart grids poses significant challenges for system stability, due to their inherent variability and uncertainty. Traditional scheduling methods often overlook the potential of demand-side flexibility…
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Artikel Jurnal
Hybrid TiO2–Fe3O4 nanofluid and hinged bending turbulators for high-efficiency PVT flat-plate collectors: Experimental assessment of heat transfer, energy, and exergy performance
This study presents a combined enhancement approach to improve the thermal and electrical performance of a photovoltaic–thermal collector by utilizing a 50% TiO2–50% Fe3O4 hybrid nanofluid at 0.5% concentration and perforated twisted tape turbulators with different twist ratios. An experimental…
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Artikel Jurnal
Design implications of ground properties and operating conditions for geothermal cooling in hot-humid and arid regions: A case study of Bahrain
This study assesses the feasibility of geothermal cooling for residential buildings in hot-humid and arid regions, using Bahrain as a representative case. Unlike studies relying on commercial software, this evaluation utilizes a fundamental analytical approach based on ASHRAE guidelines to…
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Artikel Jurnal
Numerical investigation of the melting and solidification of a novel dual-air PCM unit for power saving in air conditioning systems
A novel dual-air phase change material (PCM) unit is introduced to enhance the thermal performance of air-conditioning (AC) systems and minimize cooling coil power consumption. The numerical model is validated against experimental and numerical data from the literature. A comprehensive parametric…
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Artikel Jurnal
Techno-economic analysis and sizing of a hybrid PV-geothermal system for building energy sustainability: A case study under Egyptian climatic conditions
This study presents a techno-economic and environmental assessment of a hybrid Earth-Air Heat Exchanger (EAHE) and photovoltaic (PV) system for a residential F2-type building under the hot-arid conditions of Cairo, Egypt (ASHRAE 2 B and Köppen-Geiger BWh). The analysis combines Meteonorm Typical…
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Artikel Jurnal
Designing wave farms to support mangrove restoration: A coupled hydro-morphodynamic and habitat suitability modelling approach
Wave farms are increasingly proposed for hybrid coastal infrastructure, offering both renewable energy generation and shoreline protection. However, their potential to enable ecological restoration, particularly for mangrove restoration, remains underexplored. This study presents a novel framework…
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