In-Depth

SIMULATING COVID-19 TRANSMISSION ON THE PARAMSHAKTI SUPERCOMPUTER

SIMULATING COVID-19 TRANSMISSION ON THE PARAMSHAKTI SUPERCOMPUTER

How do airborne diseases spread? What happens when two people in close proximity talk? How exactly does the air exchange take place? To answer all these questions and many more on the spread of the COVID-19 pathogen,  Prof. Sandeep Saha of Aerospace Engineering, his students at the institute, and collaborators in CNRS, France, Imperial College, London, UK, and Princeton University, USA  have performed a high-end simulation to study the transmission patterns of the COVID-19 pathogen by using the Paramshaakti Supercomputer. The Simulation The study, which has now been published in The Journal Of Fluid Mechanics, observed airflow and exchange between…
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PAXgene for molecular diagnostics applications on oral pre-cancer and cancer tissues—described by IIT Kharagpur researchers for the first time in India

PAXgene for molecular diagnostics applications on oral pre-cancer and cancer tissues—described by IIT Kharagpur researchers for the first time in India

Recently, a scientific study has revealed the applicability of a new, non-toxic, formalin-free tissue fixation system PAXgene (QIAGEN-PreAnalytix, Germany) in studying oral pre-cancer/cancer biopsies with an aim to reduce processing damage incurred by conventional formalin-fixation and improve the quality of molecular pathology assays. Dr. Pooja Lahiri, the Postdoctoral Fellow at School of Medical Science and Technology (SMST) and Professor Jyotirmoy Chatterjee, Head of SMST along-with senior authors, Professor Basudev Lahiri and Professor Shailendra K Varshney from Electronics and Electrical Communication Engineering at IIT Kharagpur , said — “To the best of our knowledge, we are the first research group in…
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Shocked Indian meteorites provide clues to Earth’s inaccessible lower mantle

Shocked Indian meteorites provide clues to Earth’s inaccessible lower mantle

The team of researchers from IIT Kharagpur along with its collaborators have completed a set of complex analyses of the shocked Indian Kamargaon meteorite, sucked by Earth’s Gravity. In a recent study, a team of researchers from Indian Institute of Technology Kharagpur analysed a shocked meteorite called Kamargaon, fell on November 13, 2015, near the town of Kamargaon, located 27 km away from the Golaghat district of Assam, India. The scientists classified it as a chrondite, a variety of stony meteorite. In this study, the detailed investigations were carried out by Prof. Sujoy Ghosh and his student, Kishan Tiwari from…
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IIT Kharagpur unveiled the increasing ozone pollution in Antarctica

IIT Kharagpur unveiled the increasing ozone pollution in Antarctica

IIT Kharagpur researchers revealed significant increase of ozone pollution in the Antarctic troposphere for the past 25 years, which is a concern as the region is far from the industries and continental emission sources. A recent scientific study analysed the significant increase of Surface Ozone and Tropospheric Ozone in Antarctica for the past 25 years. The research findings were supported by surface-based and ozonesonde measurements in Antarctica. “The increasing trend in ozone pollution across Antarctica would have a profound impact on the future climate of one of the most climate-sensitive regions on the Earth, as tropospheric ozone has warming feedback…
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Bonobo’s several interesting facts have paved the way to the solution of the optimization problem

Bonobo’s several interesting facts have paved the way to the solution of the optimization problem

Prof. Dilip Kumar Pratihar along with his student Mr. Amit Kumar Das from the Department of Mechanical Engineering of IIT Kharagpur has proposed an intelligent and adaptive metaheuristic optimization algorithm, namely “BONOBO OPTIMIZER (BO)” to solve the complex optimization problems, being inspired from the social behavior and reproductive strategies of bonobos. BO uses a unique and adaptive selection scheme, namely fission-fusion technique for selecting the mating bonobo, which has made the algorithm intelligent, robust and good performer. It is an intelligent and adaptive heuristic with self-adjusting controlling parameters. It is able to maintain a good balance between exploration and exploitation…
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Worldwide increase in extreme precipitation: A manifestation of climate change

Worldwide increase in extreme precipitation: A manifestation of climate change

Since the 1970s, global climate change and consequent warming of atmospheric system have led to a significant increase in extreme precipitation across the world, revealed by the IIT Kharagpur researchers through a global analysis. “The global climate change and consequent warming of atmospheric system have altered the regular spatio-temporal distribution of precipitation. Our researchers also found that, the extent of increase in precipitation extremes is comparatively less near equator and reaches peak around mid-latitudes.”, mentioned the lead researcher, Prof Rajib Maity, Department of Civil Engineering. The researchers have considered gridded observational- reanalysis precipitation dataset (1948-2012) and two important extreme precipitation…
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A new approach for direct visualization of nanoscale waterways in rocks using the Atomic Force Microscope and its consequence on water percolation

A new approach for direct visualization of nanoscale waterways in rocks using the Atomic Force Microscope and its consequence on water percolation

The researchers use Atomic Force Microscope to directly observe the width and the physical nature of grain boundary domains in rocks on the nanoscale for the first time and this study is among very few in the world that have applied this technique to geological samples, and the first of its kind in India. In a recent study, a team of researchers led by Prof Saibal Gupta, Professor of Geology and Geophysics Department and Prof Rabibrata Mukherjee, Professor of Chemical Engineering Department along with the research scholars Ritabrata Dobe and Anuja Das from the Department of Geology & Geophysics and…
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The Beauty of Graphene nanoplatelets improving Tyre Performance properties

The Beauty of Graphene nanoplatelets improving Tyre Performance properties

A recent study has investigated the effect of nanofillers on air impermeability properties of Brominated isobutylene-isoprene rubber (BIIR)/ Epoxidized natural rubber (ENR) blend for automotive applications. A team of researchers led by Prof Kinsuk Naskar from Rubber Technology Centre at IIT Kharagpur along with his student, Ms. Aswathy T R and the collaborator, Mr. Sujith Nair, the vice president of R&D, CEAT Tyre Limited have developed rubber nanocomposites by blending BIIR with ENR 25 and ENR 50 (25% and 50% epoxidation) at the optimized weight proportion, and thereafter different levels of carbon black have been replaced by graphene nanoparticles (GNP).…
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IIT Kharagpur Study Predicts River Basin-wise Agricultural Droughts-North India Shows High Vulnerability

IIT Kharagpur Study Predicts River Basin-wise Agricultural Droughts-North India Shows High Vulnerability

With inputs from Rituparna Chakraborty Highlights: The study predicts future status climate change-induced agricultural droughts across India. More intense droughts in North, North-East and Central India are expected as compared to South India. About 20 and 50% of the area in India is expected to face extreme and moderate agricultural droughts, respectively, by the end of the 21st century. Farmers in India’s north, north-east and central regions may have to be more cautious of agricultural droughts in the future - reveals IIT Kharagpur study. The data shows a geographically contrasting change in future drought patterns that indicates more intense agricultural…
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Research scholar Jyotsana Priyadarshani talks about ‘organ-on-a-chip’ research

Research scholar Jyotsana Priyadarshani talks about ‘organ-on-a-chip’ research

For over two decades, researchers at IIT Kharagpur have been working on the development of affordable, portable and remote technology in the healthcare domain. The School of Medical Science and Technology and the Microfluidics Lab at the Dept. of Mechanical Engineering have collaborated on several such projects. In a similar work research scholar, Jyotsana Priyadarshani is pursuing her PhD in the area of “organ-on-a-chip” under the supervision of Prof. Soumen Das at the School of Medical Science & Technology and Prof. Suman Chakraborty at the Microfluidics Lab. Her research focuses on utilizing the frugal fabrication technique and microfluidic applications to…
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