Advancement in physics and electronics
Download as PPTX, PDF0 likes170 views
This document discusses several topics related to research including: 1. It identifies three main types of research: application oriented, fundamental, and bio-mimicking. It provides examples of bio-mimicking research inspired by animals. 2. It summarizes research on capturing the 21 cm hydrogen line to study interstellar gas and using infrared telescopes to see through dust clouds. 3. It outlines nanotechnology research including using nanoparticles for cancer hyperthermia treatment, targeted drug delivery, detoxification, and removable catalysis. Diagrams and TEM images are shown.
Advancement in physics and electronics
- 1. Advancement in physics and electronics Antilen Jacob G, Senior Research Fellow, Magnetic Materials Laboratory, Department of physics, NIT-Trichy.
- 2. Critical thinking and questioning 1. You should think out of your box 2. Some equations are only valid in certain domain 3. Don’t constrain your thinking in fixed space 4. Always ask the question why?
- 3. Major types of Research Application Orientated Research. • Civil ,Mechanical, Electrical, other engineering • Energy, Environment and Sustainability Fundamental research • Inventing something novel from the existing fundamental • Most Noble Prize oriented research Bio- mimicking • biologically inspired research(Ecological) • Inter-Disciplinary or Multi-disciplinary?????
- 4. Wind turbines (humpback whale) Cephalopod camouflage (Chameleon) Bullet train front head Kingfisher Black box Woodpecker head bone Desert Beetle shell like structure employed for water harvest Termite habitat Passive and active cooling
- 5. The gecko tape phenomena gecko has many microscopic hairs, or setae (singular seta), that increase the Van der Waals forces These setae are fibrous structural proteins that protrude from the epidermis, which is made of β-keratin
- 6. strength of spider silk. The tensile strength of spider silk ranges from 1.3 G Pa. The tensile strength steel is 1.65 G Pa.
- 7. Morphological adaption of bee clusters • Honeybee Apis mellifera swarms • Influence of dynamic mechanical forcing is unknown • Measuring the response of a cluster to an impulsive pendula excitation shows that flattened cones deform less and relax faster than the elongated ones
- 8. Encyclopedia of knowledge (Observation) Virupaksha Temple The Vijaya Vittala The Wheel of the Konark Sun Temple Chariot
- 9. Capturing 21 cm Hydrogen line • This line is created by a change in the energy state of neutral hydrogen atoms which has precise frequency of 1,420,405,751.7667±0.0009 Hz • This line can penetrate the large clouds of interstellar cosmic dust that are opaque to visible light • Atomic transition of an electron between the two hyperfine levels of the hydrogen 1 s ground state • This transition is highly forbidden with an extremely small transition rate of 2.9×10−15 s−1, and a mean lifetime of around 10 million years • extremely small natural width • The Pioneer plaque and golden disc (ETI)
- 10. Our design (VISION-2019) Filter and LNA 10 mm Al sheet for waveguide Copper probe VNA Spectrum Analyzer Finalized Design
- 11. IR telescope for look through dust. James Webb Space Telescope (JWST or "Webb") The JWST will provide improved infrared resolution and sensitivity over Hubble, and will enable a broad range of investigations across the fields of astronomy and cosmology Eighteen 1.32-meter (4.3 ft; 52 in) hexagonal mirror segments made of gold-plated beryllium which combine to create a 6.5-meter The telescope must be kept very cold in order to observe in the infrared without interference deployed in space near the Earth–Sun L2 Lagrangian point, and a large sunshield made of silicon- and aluminum-coated Kapton will keep its mirror and instruments below 50 K
- 12. Nanotechnology • Coarse particle –smaller than 10 micron • Fine particle- smaller than 2.5 micron • Ultrafine particle- smaller than 0.1 micron • Nanoparticle dimensions between 1-100 nm
- 13. Nanotechnology The glass appears green when illuminated from the outside (a) and purple-red when illuminated from the inside (b). Nanomaterials have been in use since ancient times, since the 4th century AD It was found that the dichroism (two colors) is observed due to the presence of nanoparticles, silver 66.2%, 31.2% gold, and 2.6% copper, up to 100 nm in size, dispersed in a glass matrix Red due to absorption of light (∼520 nm) by the gold particles, the green color by scattering with colloidal dispersions of silver particles with size >40 nm
- 14. Hyperthermia new generation cancer therapy . • Tissue is exposed to high temperatures (up to 113°F), such temperatures can damage and kill cancer cells • Heating is due to Brownian and Neel relaxation of nanoparticles • Hof should be less than 5 × 109Am−1 s−1 J. Shebha Anandhi, G. Antilen Jacob, and R. Justin Joseyphus, Mater. Res. Express 6, (2019).
- 15. Targeted Drug delivery and Detoxification • 137Cs with a half-life of 30.1671 years. • Surface modified magnetite nanoparticles with Prussian blue • It can be magnetically separated
- 16. Removable Catalysis in CTH reaction
- 17. TEM micrographs Figure shows a) Fe90Co10 b) Fe50Co50
- 18. Facilities in our Lab TEM (Technai Version) VSM (Lakshore) TGA/DTA Contact me : antilenjacob@gmail.com, antilen@nitt.edu 04312504623, 9789178830