etd AT Indian Institute of Science: Recent submissions
Now showing items 1-20 of 6754
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Exploring Topological Semimetallic Phases of Matter through First-Principles Calculations
In recent years, the study of topological phases of matter have received immense interest. Following the discovery of topological insulators, topological band theory has been extended to topological semimetals, characterized ... -
RSMA Architectures for Downlink Communication Systems
Demand for the internet is increasing day by day, and the number of internet users is also growing drastically. Multiple access (MA) plays an important role in the fifth-generation (5G) and upcoming sixth-generation (6G) ... -
Electronic Devices using Low-Dimensional van der Waals Materials and Their Heterojunctions
As the state of the art in computation, communication and sensing advances, there is an ever-increasing search for novel materials and device architectures to satisfy the growing demands for more functionality, performance, ... -
Towards Data-constrained Data-driven Digital Twin for Design and Manufacturing
This thesis addresses the issue of data availability in building data-driven models for digital twins in manufacturing and design. Digital twins enable the transition of computer models of products, assets and processes ... -
Design, Simulation, Microfabrication and Characterization of a 16 MHz 1D-pMUT-Array
Ultrasound transducers are being used in a variety of biomedical applications. Conventional ultrasound transducers used currently for medical imaging are quite bulky, these transducers also consume considerable amounts of ... -
Dielectric, AC Conductivity, and EMI Shielding studies of PEDOT-PSS Nanocomposites with Carbon based Fillers
Polymer nanocomposites (PNCs) have emerged as a significant material for addressing two critical contemporary challenges: the escalating global energy demand and the pervasive electromagnetic interference (EMI) issues. The ... -
Exploring Application of Dendrimer in Energy Storage, Uranyl Extraction and Drug Delivery through Molecular Modelling
This thesis explores the potential applications of poly(amidoamine) (PAMAM) dendrimers, a class of highly branched polymers, using atomistic molecular dynamics simulations. We investigate the use of PAMAM dendrimers in ... -
Unravelling the spindle-independent function of cortical force-generating machinery (LIN-5/GPR-1/2) during cleavage furrow formation and abscission in C. elegans embryos
Cytokinesis marks the final stage of cell division, where a single mother cell divides into two daughter cells. This intricate process begins with the assembly of an actomyosin-based cleavage furrow at the equatorial ... -
Global Methods for Camera Motion Estimation
This thesis is a contribution towards the problem of Structure-from-Motion (SfM), which has been of interest to the 3D computer vision community for many decades. Structure-from-Motion falls under the class of 3D reconstruction ... -
Immune cell surveillance and death on silicone catheter surfaces drives bacterial biofilm formation
Silicone venous catheters are among the most used medical devices in the world with a prevalence of up to 80% in hospitalised patients. While they are used for several life-saving applications, they are also prone to ... -
Identifying and Disentangling Different Sources of Variability in Travel Choice Models
Random utility maximization (RUM)-based discrete choice models are widely used for analyzing individual choice behaviour across diverse fields, including transportation, economics, market research, healthcare, and environmental ... -
Some investigations into the methods and applications of modern Feynman Integral evaluation
Feynman Integrals appear in perturbative quantum field theories and have been the focus of intensive study for over half a century. With the rise of the Standard Model of particle physics and its various extensions and the ... -
Investigation of the oxyfuel fluidized bed combustion characteristics of high ash Indian coal
Coal continues to be an important source of energy in developing countries like India. However, Indian coal has high ash content, which causes it to have high burnout time and, hence, lower combustion efficiency in ... -
Iridium-Catalyzed Enantioselective Alkylation of Enols and Their Surrogates
This thesis, entitled “Iridium-Catalyzed Enantioselective Alkylation of Enols and their Surrogates” is divided into four chapters. In Chapter 1, the examples of the utilization of vinyl azide as amide and ketone enolate ... -
Assimilation of near-surface soil temperature and soil moisture in an unsaturated flow model: State and parameter estimation using synthetic and field experiments
Soil moisture is a key variable governing land surface hydrology, agricultural productivity, and climate dynamics, influencing crucial processes such as evapotranspiration, infiltration, and surface runoff. Accurate ... -
Development of Inorganic Perovskite Nanocrystals for Optoelectronic Applications
Metal Halide Perovskites (APbX3) have garnered appreciable attention from researchers because of their fascinating optoelectronic properties. These properties include high absorption coefficient, defect tolerance, long ... -
Insights on the Evaporation and Precipitation of Pathogen-Laden Respiratory Droplets on Inanimate Surfaces
Disease transmission via fluid ejections from infected individuals is a critical public health concern, particularly in high-risk environments like hospitals, public transport, restaurants, and schools. Respiratory droplets ... -
Investigations on Pulse Width Modulation Techniques for Split-Phase Induction Motor Drives
A split-phase induction motor (SPIM) has two sets of identical three-phase windings. These two sets of windings are separated by 30◦ in space, which are, typically fed by a three-phase voltage source inverter (VSI) each. ... -
Semi-analytical solution for eigenvalue problems of lattice models with boundary conditions
Closed-form relations for limiting eigenvalues of an infinite k-periodic spatial lattice in any number of dimensions d, and its semi-analytical extensions for any given size n of the lattice with free-free boundary ... -
Application of Finite Element Limit Analysis and Other Means to Deal with Problems Involving Foundations and Excavations
The finite elements limit analysis (FELA) is an important tool to solve any stability problem in geomechanics. This method provides lower and upper bounds on the true solution for a material following an associated flow ...