etd AT Indian Institute of Science: Recent submissions
Now showing items 181-200 of 6749
-
Heterogeneous Integration of Functional Oxides on Silicon
The epitaxial growth of perovskite-structure oxide thin films on silicon (Si) substrates presents an avenue for integrating diverse electronic, optoelectronic, and acoustic functionalities into the well-established, ... -
Novel spin, charge, and lattice dynamics in pyrochlore iridates : Raman and X-ray diffraction studies at low temperatures and high pressure
This thesis investigates phonon dynamics, electronic, and spin excitations along with structural instabilities and phase transitions in rare earth pyrochlore iridates, A2Ir2O7 (A = Pr, Gd, Dy, and Er) and Bi-doped Sm2Ir2O7 ... -
Interfacial engineering to reduce switching current in perpendicularly magnetized Pt/Co/Pt system for memory applications
Tuning the interfacial properties of heavy metal (HM)/ Ferromagnet (FM)/ heavy metal (HM) thin film systems with perpendicular magnetic anisotropy (PMA) has attracted massive attention in the recent past because of their ... -
Neuromorphic Silicon Retinas: Analog and Digital Models
Silicon retinas are artificial retinal devices designed to replicate the functionality of the biological retina using silicon-based technologies. These retinas aim to address visual impairment by capturing and processing ... -
Modeling and Experimental Studies on Nucleation & Growth of Crystals Using Super-Cooled Liquids
Crystallization of active pharmaceutical ingredients (APIs) is a critical processing step in the pharmaceutical industry. It traditionally involves supercooling mother liquor in jacketed vessels to induce crystallization ... -
Power Swing Blocking Protection in Presence of Large Scale Grid Following PV Generation
The increasing penetration of Inverter-Based Resources (IBRs) in power grids, driven by environmental concerns, has significantly altered the system's dynamic behavior. Unlike traditional Synchronous Generators (SGs), IBRs ... -
Modeling of Supercritical Carbon Dioxide Centrifugal Compressors for Brayton Power Cycles
Due to several perceived advantages, supercritical Carbon dioxide (sCO2) cycles are viewed as potential replacements for steam-based power generation. Their successful deployment depends on several factors - one important ... -
Investigating DJ-1 homologs in maintaining genome integrity through glycation repair of macromolecules: Implications in regulating mitochondrial health
The current thesis work focuses on DJ-1 superfamily proteins and their role in protection against toxic glycating carbonyls such as Methylglyoxal (MG) and Glyoxal (GO). Our study reveals that yeast DJ-1 homologs (Hsp31 ... -
Gallium Oxide based High Voltage Diode : Design, Fabrication, Characterization and Modelling
High-efficiency power electronic devices intend to play a significant role in curbing global warming and enhancing energy conservation. Owing to its superior material properties, Gallium oxide (Ga2O3) has emerged as a new ... -
Optical and Structural Studies of Nanocrystal Assemblies
In my thesis I have delved into studying nanoparticle assemblies that can be applied to different types of applications. For example, certain types of nanoparticles can be utilized as quantum light sources or a different ... -
Synthesis and Physicochemical Characterizations of 3d Transition Metal Based Anisotropic Complexes: A Building Block Approach for Designing Multifunctional Materials
Molecule-based magnetic materials have been a popular choice in recent times, to generate multifunctional materials1. An inherent property in such systems is molecular bistability which enables a system to interchange ... -
Theoretical Studies of Dynamics in Complex Systems: Liquids, Polymer Dimerization and Non-Equilibrium FRET
The thesis presents theoretical and computer simulation studies of dynamics in several complex systems, namely, electrolyte solutions, aqueous binary mixtures, nanoconfined binary mixtures, polymer dimerization, and ... -
Asymptotic Modelling of Carbon Nanotube (CNT) and CNT-Reinforced Composite Structures Using Strain Gradient Formulations
Carbon nanotubes (CNTs) have garnered attention for their remarkable mechanical, thermal, and electrical properties, making them valuable in various applications. CNTs are particularly advantageous in aerospace structures ... -
Numerical Modeling of Sediment Transport using ANUGA Sed: Application to Mahanadi River Basin, India
Soil erosion and sediment transport are natural processes primarily driven by water. However, excessive human interference through agriculture, urbanization, and the construction of water storage reservoirs has significantly ... -
Structural and functional studies on the hypothetical protein TTHA1873 from Thermus thermophilus
This thesis reports a detailed study on the structural and functional characterization of the hypothetical protein (TTHA1873) from Thermus thermophilus. In this study, both the structure and function of TTHA1873 were ... -
Lagrangian dispersion statistics of compressible turbulence
Turbulent transport of mass, momentum and energy are ubiquitous across physical processes spanning a vast expanse of scales, from the formation of clouds, the transport of pollutants and nutrients across oceans, and the ... -
Predictive modelling of key performance indicators for a data-driven digital twin of CNC machining processes
This thesis introduces a novel Digital Twin architecture for modelling CNC machining processes for better decision-making by predicting key performance indicators (KPIs) with data-driven modelling. The proposed data-driven ... -
The Momentum Construction Method for Higher Extremal Kähler and Conical Higher cscK Metrics
This thesis consists of two parts. In both the parts we study two new notions of canonical K\"ahler metrics on compact K\"ahler manifolds which were introduced by Pingali, viz. `higher extremal K\"ahler metric' and ... -
Interfacial Phase Change Phenomenon during Crystallization and Boiling in Droplets
Two-phase interaction of droplets on heated substrates is ubiquitous and has applications in power plants, industrial cooling, and particle drying. At temperatures significantly higher than the saturation temperature of ... -
A divide-and-conquer distance geometry method to model protein structures from NMR spectroscopy
Nuclear Magnetic Resonance (NMR) spectroscopy provides insights into the dynamic behavior of proteins in solution, eliminating the need for crystallization. NMR experiments can spatially probe nuclei within 6 Angstroms of ...