etd AT Indian Institute of Science: Recent submissions
Now showing items 741-760 of 6752
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Investigation of Au-free AlGaN/GaN HEMT on Silicon with substrate transfer process: From Ohmic contacts to RF performance
The technological importance of III-nitride based high electron mobility transistors (HEMTs) for power switching and RF applications is growing rapidly, owing to two advantageous electrical properties. While high sheet ... -
Structural and functional insights into hybrid AT-less megaenzyme synthase (NRPS) and DNA-MsDps2 complexes using single particle cryo-EM
Microorganisms, mainly bacteria and fungi, are the producers of structurally diverse, complex organic compounds called as secondary metabolites. These metabolites include polyketides (PKs), non-ribosomal peptides (NRPs), ... -
ALE-based Monolithic Finite Element Strategies for Fluid Structure Interaction Problems
Fluid-structure interactions (FSI) represent a class of engineering problems which involve a two-way coupling between the solid motion and the fluid flow. The deformation of the solid caused by the fluid forces at the ... -
On the creep behaviour of Ni based solid solution alloys from binary to quaternary
On the creep behavior of Ni based solid solution alloys from binary to quaternary A power-law relationship between the steady state strain rate (𝜀̇) and imposed stress (σ) is well established so that the 𝜀̇∝𝜎^𝑛, at a ... -
Modeling of Lightning Attachment to Aircraft and a Novel Methodology to Quantify Strike Rate
Air transport plays a vital role in global economic growth and long-distance commutation. The aviation industry is found to double its fleet size every fifteen years. According to Air Transport Action Group (ATAG), 45 ... -
Electronic behavior of epitaxial thin films of doped rare-earth nickelates
Rare-earth nickelates (RENiO3), a family of transition metal oxides, exhibit a complex phase diagram involving electronic, magnetic, and structural phase transitions. While LaNiO3 remains paramagnetic, metallic down to ... -
Experimental and Theoretical Insights into Impact Phenomena of Small Scale Liquid Interfacial Systems
This work explores impact phenomena experimentally and theoretically for various interfacial systems ranging from medical diagnostics to drop impacts on solids and immiscible liquids. We study a hitherto unexplored impact ... -
Investigation of Growth, Structural and Optical properties of different phases of Ga2O3
Among the semiconducting sesquioxides, Ga2O3 has attracted considerable research attention in recent years due to its excellent properties, including direct ultra wide band gap, optical transparency, high excitonic binding ... -
Identification of crystalline structures of clathrate hydrates during molecular simulations using machine learning
Molecular simulation is a powerful tool that links a system’s microscopic behaviour to its macroscopic observable features. The data obtained from a molecular simulation act as a digital microscope, i.e., it contains ... -
Numerical Analysis to Understand Influence of Ventilation Systems on Thermal Comfort Parameters, Quality of Air, and Local Sweating
The body’s heat exchange mechanisms include sensible heat transfer at the skin surface (also called “Dry Heat exchange”) due to temperature differences (via conduction, convection, and radiation (long-wave and short-wave)), ... -
Hybrid Physics-Data Driven Models for the Solution of Mechanics Based Inverse Problems
Inverse problems pose a significant challenge as they aim to estimate the causal factors that result in a measured response. However, the responses are often truncated, partially available, and corrupted by measurement ... -
Diabetogenesis and Albumin Molecular Modifications Newer Biological Insights and Clinical Implications
To address the many unmet scientific needs in diabetes care (pathogenesis pathways, earliest diagnosis, efficient monitoring, safer and better therapies and importantly prevention approaches), our research focussed on: (a) ... -
True Random Number Generators based on Amplified Spontaneous Emission
Low-cost, high-speed quantum random number generators (QRNGs) are imperative to develop in order to have a widespread application in areas ranging from cryptography and stochastic simulations to banking and internet. ... -
Experimental and Numerical Studies on High-pressure Trapped Vortex Combustion
Recent climate change issues demand stringent emission standards for natural gas-fired power generation applications. The Trapped Vortex Combustor (TVC) is a relatively new concept where the flame is stabilized using a ... -
Low Light Image Restoration: Models, Algorithms and Learning with Limited Data
The ability to capture high quality images under low-light conditions is an important feature of most hand-held devices and surveillance cameras. Images captured under such conditions often suffer from multiple distortions ... -
Investigating the role of AMPK in mammary gland alveologenesis and lactation
AMP-activated kinase (AMPK) is an energy sensor that regulates cell growth and metabolism. Reports from our laboratory and others have shown the context-specific role of AMPK signaling in breast cancer. However, its role ... -
Structural and functional insights into hybrid AT-less megaenzyme synthase (NRPS) and DNA-MsDps2 complexes using single particle cryo-EM
Microorganisms, mainly bacteria and fungi, are the producers of structurally diverse, complex organic compounds called as secondary metabolites. These metabolites include polyketides (PKs), non-ribosomal peptides (NRPs), ... -
Structure-Property Correlation in Additively Manufactured High-Temperature Materials: Insights from Nickel-Based Superalloy IN718 & Nickel-Based Eutectic High Entropy Alloy AlCoCrFeNi2.1
High-temperature alloys are technically very important materials that possess higher resistance toward mechanical and chemical degradation at 0.4-0.6 TM for a constant/cyclic load. These attributes make them candidate ... -
A Multiscale Study of the Thermodynamics and Kinetics of Vacancy–grain-boundary Interactions
Grain boundaries (GBs) influence many physical and mechanical properties of crystalline materials. This is primarily because of their interactions with other kinds of defects, such as point and line defects. Such interactions ... -
Structural Health Monitoring Accounting for Thermal Variability and Damage using Approximate Bayesian Computation
In structural engineering, damage is characterized as a change in material property, boundary condition, or geometry. The changes in these properties/parameters lead to a change in the measured response. The difference ...