Rizalman Mamat
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Carbon fibre for applications in aerospace: A review Open
The aerospace industry increasingly relies on advanced composite materials to enhance structural performance while reducing environmental impact. Among these materials, carbon fibre-reinforced polymers (CFRPs) have emerged as the dominant …
A Bibliometric Review of the Research Progress and Trends in Nanolubricants for Refrigeration Systems (2003-2025) Open
This paper presents the first comprehensive bibliometric review of nanolubricant research, with a focus on its application in refrigeration systems from 2003 to 2025. The study aims to identify emerging research areas, key institutions, an…
Strategic framework for overcoming barriers in renewable energy transition: A multi-dimensional review Open
The global transition to renewable energy is essential for reducing carbon emissions and mitigating climate change. However, its implementation faces persistent challenges in terms of technical, economic, regulatory, social, and environmen…
Thermochemical characterization of cassava peel biocoke for renewable energy at varying pyrolysis temperatures Open
The growing global energy demand and the need for sustainable alternatives have driven the exploration of biomass waste as a renewable energy source. Cassava peel, an abundant agro-industrial residue, holds potential as a feedstock for sol…
A review of oxygen generation through renewable hydrogen production Open
Oxygen production as a by-product from renewable energy-based water electrolysis has great potential to support the clean energy transition. This study reviews the efficiency of electrolysis technologies, oxygen applications, and their env…
Bio-based papers from seaweed and coconut fiber: sustainable materials for a greener future Open
The paper industry’s reliance on deforestation for wood pulp has raised environmental concerns and led to fluctuating prices. This study explores the potential of seaweed (Sargassum wightii) and coconut waste, abundant in Malaysia, as sust…
Development of an energy-efficient hybrid electric vehicle air-conditioning system test rig coupled with nanolubricant Open
The development of an energy-efficient electric automotive air conditioning system is crucial in addressing the growing concerns over energy consumption and environmental impact in the transportation sector. Prior to assessing the impact o…
Quantifying the impact of varied NPK fertilizer levels on oil palm plants during the nursery stage: A Vis-NIR spectral reflectance analysis Open
The utilization of Vis-NIR spectroscopy, coupled with advanced statistical analysis methods, offers enhanced precision in monitoring the nutrient status of plants compared to traditional practices. This research aims to explore the efficac…
Mapping sewage treatment plants for wastewater reclamation and reuse in industrial parks of Peninsular Malaysia: A path towards water security Open
The rapid industrialisation and urbanisation in recent decades have significantly increased global wastewater generation, particularly in industrial parks. Sewage treatment plants (STPs) near these parks are crucial for promoting sustainab…
Smart thermal management of photovoltaic systems: Innovative strategies Open
The efficiency of photovoltaic (PV) panels is significantly affected by environmental factors such as solar irradiance, wind speed, humidity, dust accumulation, shading, and surface temperature, with thermal buildup being the primary cause…
View article: A Review on nanolubricant for refrigeration systems: Stability, thermophysical properties, and performance characteristics
A Review on nanolubricant for refrigeration systems: Stability, thermophysical properties, and performance characteristics Open
Many researchers have introduced nanolubricants in the field of refrigeration systems to improve performance. Nevertheless, academic literature lacks comprehensive explanations of the impact of nanoparticles on the physical phenomena that …
Evaluation of engine performance and emissions using blends of gasoline, ethanol, and fusel oil Open
This study investigates the impact of gasoline, ethanol, and fusel oil blends on engine performance and emissions under varying engine speeds (1000–3000 rpm) and throttle positions (10–40 %). The blends reduced brake power by 3.5–7.1 % and…
Seaweed processing: efficiency, kinetics, and quality attributes under solar drying Open
Traditional open sun drying methods face issues such as weather dependence, contamination risk, inconsistent drying rates, and nutrient loss. This study investigates a novel photovoltaic (PV)-integrated solar dryer designed to improve seaw…
Investigation of heavy metal concentrations for biocoke by using ICP-OES Open
The palm oil industry produces large amounts of empty oil palm bunches (EFB) waste, which can pollute the environment if it contains hazardous heavy metals. This study aims to analyze the concentration of heavy metals in EFB using the Indu…
View article: Recent advances in harnessing biolubricants to enhance tribological performance and environmental responsibility – Bibliometric review (2015–2024)
Recent advances in harnessing biolubricants to enhance tribological performance and environmental responsibility – Bibliometric review (2015–2024) Open
The necessity of conducting research on biolubricants arises from the urgent need to develop sustainable alternatives to conventional petroleum-based lubricants, which contribute to environmental degradation and carbon emissions. As biolub…
Crystallite size and phase purity in Pb <sub>1-x</sub> Sr <sub>x</sub> TiO <sub>3</sub> ferroelectric perovskites for biomedical applications via controlled sintering Open
Lead strontium titanate (Pb1-xSrx)TiO3 (PST) is a ferroelectric perovskite material with tunable properties, including Curie temperature, spontaneous polarization, and high dielectric permittivity, making it promising for advanced biomedic…
Prospects for renewable energy sources from biomass waste in Indonesia Open
This research evaluates energy dependence and dependence on fossil fuels. Indonesia's abundant renewable energy sources can be used as an environmentally friendly and sustainable energy alternative. The potential for renewable energy in In…
Correlation between hardness and SEM-EDS characterization of palm oil waste based biocoke Open
This research investigates the relationship between hardness and microstructure obtained through SEM-EDS analysis of palm oil waste-based biocoke. The mechanical qualities and chemical composition of biocoke are being studied concerning th…