- Antenna Design and Analysis
- Energy Harvesting in Wireless Networks
- Graphene research and applications
- Global Health Care Issues
- Climate Change and Health Impacts
- Advanced Antenna and Metasurface Technologies
- Pulmonary Hypertension Research and Treatments
- Medical and Agricultural Research Studies
- Metamaterials and Metasurfaces Applications
- Antenna Design and Optimization
- Satellite Communication Systems
- Electromagnetic wave absorption materials
- Advanced Sensor and Energy Harvesting Materials
- Nanomaterials and Printing Technologies
- Green IT and Sustainability
- Cardiac Imaging and Diagnostics
- Aerogels and thermal insulation
- Cardiac, Anesthesia and Surgical Outcomes
- Glass properties and applications
- Graphene and Nanomaterials Applications
- Chemical and Physical Properties of Materials
- Advanced Materials and Mechanics
- High-pressure geophysics and materials
- COVID-19 and healthcare impacts
Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology
2017-2025
Institute for Health Metrics and Evaluation
2024
University of Washington
2024
City, University of London
2024
Abstract In this study, discarded neem ( Azadirachta indica ) mature-wood twigs are charred at 473 K to yield charcoal ash. Material characterizations reveal that the ash is composed of various minerals and organic functionalities has a flaky, macroporous surface consisting protrusions. Elementary property analyses performed, twig compared characteristically with similar wood-derived, organic, bottom ashes. The inherently gray color (∼50 % absorbance ∼50 reflectance) changes reddish when...
In this paper, the Radiating element of a patch antenna for energy harvesting application was fabricated using graphene ink-based screen printed method. Wax-coated paper and polyester were investigated as flexible substrates to mount radiating element. FR4, typical material used in electronic circuitry also considered substrate comparison. The performance measured by standard method Vector network analyzer. Simulation carried out material-based software tool, COMSOL Multiphysics simulated...
In this project, a nano material based printed patch antenna structure has been integrated with solar panel without affecting the optical efficiency of panel. The proposed prototype is having property both and module functionality. A Graphene CPW fed E-Shaped microstrip which return loss -48.43dB at resonant frequency 2.1GHz best suitable for UMTS-2100 Band (2.15GHz – 2.18GHz), GSM 2.18GHz) applications on using screen printing technique. conventional copper-based antennas are replaced...
Heat is the transit in energy from a high temperature region (or) entity to lower region. Magnetism physical phenomenon associated with charges motion. It consequence of alteration spin elementary object, ie electrons. Thermomagnetism by which magnetism produced as result heat Magnetic Seebeck Effect. can be observed insulators, are solids that offer very resistance flow electric current virtue large forbidden gap between energies valence The materials chosen for study easily available and...
The aim of this work is to study the qualitative effect temperature on magnetic field generated due differential heating insulators. variations thermomagnetic field, with respect temperature, are studied by analysing thermal profile for various radiations. Thermo-magnet a device, which can generate between two insulators varying resistivity. dependent gradient (ΔT), distance (d), dielectric constant (k) and relative permeability (µr) medium insulators, resistivity both (RλA RλB) This will be...