Universiti Malaysia Pahang (literally meaning University of Malaysia of Pahang, abbreviated as UMP) is a public technical university in Pahang, Malaysia. It was formerly known as Kolej Universiti Kejuruteraan dan Teknologi Malaysia (English: University College of Engineering & Technology Malaysia) (KUKTEM).On 28 November 2015, UMP had been granted an autonomous status where controls towards the financial, human resources and administration had been fully passed to the university.
This study investigates the rheological, thermal, and microstructural performance of clay-based geopolymer cement for geotechnical and oil well cementing applications. Kuala Rompin Clay (KRC) was used as the primary aluminosilicate precursor and activated with potassium hydroxide extracted from empty fruit bunch ash (EFBA) combined with sodium silicate. Bauxite, magnesium oxide (MgO), and calcium carbonate (CaCO3) were incorporated as functional additives at replacement levels ranging from 0 to 100
To investigate the effects of fractional order ( α ), nanoparticle volume fraction ( φ ), magnetic field strength ( M ), and Brinkman permeability ( Br ) on both flow and heat transfer characteristics, a detailed parametric and statistical analysis is conducted. The statistical regression analysis shows that the volume fraction of nanoparticles and temperature have a strong positive correlation (coefficient = 0.94, p = 0.021) indicating that Mo2C MXene is an excellent heat absorption. On the other hand, the fractional parameter α has a strong negative effect on temperature field (coefficient = − 0.086, p < 0.001), which emphasizes its importance in describing the effects of thermal memory. The findings also indicate that, although MXene nanoparticles significantly increase thermal transport, an augmentation in magnetic field strength and Brinkman resistance cause a resistive Lorentz force and frictional drag, respectively, to prevent fluid flow. These results are physically informative about non-Fourier heat transfer in MXene-based nanofluids as well as offer invaluable information to developing high-performance thermal management systems and solar-energy applications.
This study delivers an exhaustive exploration of novel and hybrid power systems for Unmanned Aerial Vehicles (UAVs) aimed at improving endurance, efficiency, and mission performance. In the wake of increasing requirements for long-endurance and high-performance UAVs, traditional battery systems are limited by their energy density and lifetime. To overcome this, the research compares four primary power sources: hydrogen fuel cells, lithium-based batteries, photovoltaic cells, and supercapacitors, with a focus on their hybrid architecture integration. The originality of this research is in the relative comparison of these power sources in multi-mode UAV operations, with an emphasis on their performance, energy management approaches, and trade-offs under real-flight conditions. Key contributions include UAV energy requirement categorization, conceptual designs for long endurance and high-altitude missions, and a hybrid power system integration roadmap. The results enable the innovation of next-generation UAVs to achieve extended duration of flight, higher payload capacity, and power-efficient flight.
This work demonstrates a sustainable strategy for stabilizing and functionalizing ginger essential oil (GEO) Pickering nanoemulsions using cellulose nanocrystals (CNCs) derived from microcrystalline cellulose via a green deep eutectic solvent (DES) system. The CNCs were isolated with a high yield (95.87
The advancement of electrochemical energy storage (EES) technologies is critical to meeting increasing demands for high energy capacity, superior power output, and extended cycle life. Despite significant progress, most existing EES systems remain unsuitable for large-scale commercialization due to performance and design limitations. This review uniquely bridges the gap between material engineering and device-level optimization by critically examining how innovations in electrode materials, electrolyte systems, and interface design translate into enhanced electrochemical performance at the device scale. Special attention is given to the emerging class of supercapattery known as hybrid devices that synergistically integrate the rapid charge-discharge characteristics of supercapacitors with the high energy density of battery. By elucidating the interplay between Faradaic and non-Faradaic processes, the review demonstrates how tailored material properties and structural engineering can be leveraged to optimize device architectures for improved energy and power densities, cycling stability, and charge retention. These insights offer a comprehensive perspective on the design of next-generation energy storage systems and support future research and commercialization strategies for high-performance supercapatteries.
