Anna University is a public state university located in Tamil Nadu, India. The main campus is in Chennai. It was originally established on 4 September 1978 and was named after C. N. Annadurai, the former Chief Minister of Tamil Nadu.
The continuous increase in power density and packaging density of electronic devices has imposed stringent requirements on thermal interface materials (TIMs) to deliver high thermal conductivity, electrical insulation, processability, and long-term reliability. In this study, an hBN-rich hybrid TIM is developed by integrating graphene oxide (GO), zinc oxide (ZnO), silicon carbide (SiC), and hexagonal boron nitride (hBN) within a silicone matrix without employing silane-based surface modification. The formulation strategy relies on multi-dimensional filler synergy to construct efficient heat-conduction networks while preserving dielectric integrity. The optimized hybrid composition (12 wt
The escalating release of synthetic dyes from textile and allied industries has become a pressing global environmental issue due to their toxicity, persistence, and resistance to biodegradation. Among the various treatment strategies, adsorption has emerged as one of the most efficient, economical, and sustainable techniques for dye removal from aqueous environments. This review highlights recent advances in bio-derived adsorbents-particularly raw biomass powders, biochars, and activated carbons-developed from renewable waste sources such as agricultural residues, fruit peels, shells, and plant fibers. It systematically discusses adsorption mechanisms, the influence of process parameters, kinetic and thermodynamic models, and regeneration performance. Furthermore, the review emphasizes the superior adsorption efficiency and cost-effectiveness of biomass-derived carbons compared to conventional adsorbents. The integration of surface modification, magnetization, and nanocomposite formation has further enhanced dye uptake and reusability. Overall, this study underscores the potential of biomass-derived materials as sustainable alternatives for wastewater treatment and environmental remediation.
The purpose of this experiment was to evaluate the effect of incorporating biochar into a polyester-based composite reinforced with lyocell bamboo fiber. Biochar was successfully extracted from peach pit husks through a pyrolysis process. Composite laminates were fabricated using the hand layup technique, and their properties were evaluated according to ASTM standards. The mechanical properties assessed included tensile, flexural, impact, surface hardness, and edgewise compression strengths, along with thermal conductivity and water absorption behaviour. Among all the specimens, the PB3 composite (containing 40 vol.
The advancement of electric vehicle technology increasingly depends on effective power management of hybrid energy storage systems that combine fuel cells, batteries, and supercapacitors. Traditional rule-based and optimization-based control strategies often fail to fully exploit these energy sources, especially under rapidly changing load conditions. This paper presents a reinforcement learning-based power management strategy, specifically using a Q-learning framework, to address these challenges. The proposed method eliminates the need for detailed system modeling by enabling the agent to learn optimal power distribution policies through continuous interaction with the environment. It dynamically considers battery state-of-charge, supercapacitor voltage, and instantaneous load demand to determine the most energy-efficient control actions. The proposed controller is trained with a carefully formulated reward function aimed at reducing hydrogen consumption, minimizing battery degradation, and effectively using the super capacitor for transient load compensation. Simulation results demonstrate that the proposed method outperforms conventional and optimization-based strategies. This controller achieves the lowest hydrogen consumption of just 15.58 g. Furthermore, it delivers the highest system efficiency of 99.67
The main objective of the present analysis is to investigate the effect of incorporating silane-treated Helianthus annuus waste derived cellulose into sugarcane leaf fiber-reinforced vinyl ester composites. Both the fiber and filler materials were effectively surface treated using 3-aminopropyltrimethoxysilant. The composites were prepared and their interlaminar shear strength (ILSS), wear resistance, water absorption, and flammability properties were evaluated in accordance with ASTM standards. The test results revealed that silane treatment significantly influenced the overall performance of the composites. Among the tested specimens, the BSC5 composite, which was treated with silane and reinforced with 1 vol
