etd AT Indian Institute of Science: Recent submissions
Now showing items 3081-3100 of 8174
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Structured Sparse Signal Recovery for mmWave Channel Estimation: Intra-vector Correlation and Modulo Compressed Sensing
This thesis contributes new theoretical results and recovery algorithms for the area of sparse signal recovery motivated by applications to the problem of channel estimation in mmWave communication systems. The presentation ... -
Ab initio Quantum Chemical Studies on Kinetic Fractionation during the analysis of Carbonates for the Clumped Isotope Thermometry
Stable and clumped isotopic compositions of molecules and minerals carry the signatures of temperatures and other physical and chemical conditions of the time of their formation. Isotopic compositions of such precipitate ... -
Aerodynamics of Nose Mounted Propeller Aircraft
The thesis deals with the aerodynamic analysis of a nose-mounted propeller aircraft using the flow solver HiFUN. Unsteady RANS simulations using sliding mesh technology is performed on aircraft with the propeller. The study ... -
The Effectiveness of Technology Business Incubation: An Empirical Analysis in the Indian Context
Entrepreneurship is key to drive innovation, create wealth and jobs in any economy. Entrepreneurial startups hold the promise of high growth, yet they encounter high failure rates due to uncertainties, particularly in ... -
Structural Insights into Peptide Foldamers Containing β or γ Amino Acid Residues Gained Using NMR Spectroscopy
The work reported in this thesis is focused on understanding the conformational properties of peptide foldamers containing β or γ amino acid residues. Chapter 1 includes a brief state-of-the-art literature review on peptide ... -
Understanding spontaneous emission in the strong coupling regime of an emitter and absorbing matter
This thesis proposes a partition of optical states into radiative and non-radiative parts when an emitter is proximal to resonant absorbing nanostructures. The conventional partition is valid only for the weak coupling ... -
Novel Pathways for Beyond Standard Model Physics
In the light of discovering the Higgs boson and null results at the LHC, we look for new pathways for Beyond Standard Model Physics, which could accommodate at least one of the Standard Model shortcomings. (i) Unification ... -
Magnetically arrested advective accretion flows around black holes and their implications to ultraluminous X-ray sources and blazars
Black hole (BH) accretions are very powerful sources of energy in the universe. In accretion phenomena, the surrounding gas spirals down towards the central BH and forms a disc or quasi-spherical structure based on the ... -
Modeling and Analysis of Hybrid Renewable Energy for Power Generation
Renewable energy-based power has gained significant global momentum—to minimize fossil-fuel use, combat climate change, and ensure energy security. While renewable energy (RE) is fast-growing, stand-alone single resource-based ... -
Tuning of Spin Reorientation and Compensation Transitions in Ferrites
Ferrites have attracted the attention of scientists and engineers in the last few years because of a combination of ferrimagnetic and insulating character. This makes them suitable for high frequency devices in telecommunication ... -
Algorithmic and Hardness Results for Fundamental Fair-Division Problems
The theory of fair division addresses the fundamental problem of dividing a set of resources among the participating agents in a satisfactory or meaningfully fair manner. This thesis examines the key computational challenges ... -
Wave Propagation in Adhesively Bonded Single Lap Joints: Solution of Forward and Inverse Problems
The use of adhesives for bonding composites as well as metals is rapidly increasing since it provides uniform load transfer and is free of stress concentration seen around the drilled holes in bolted or riveted joints. ... -
Scaling Blockchains Using Coding Theory and Verifiable Computing
The issue of scalability has been restricting blockchain from its widespread adoption. The current transaction rate of bitcoin is around seven transactions/second while its size has crossed the 300 GB mark. Although many ... -
Dynamics of glass forming liquids with emphasis on vibrational modes
The potential energy landscape (PEL) description is regarded as one of the fundamental landmarks in the theory of glass transition, which has found wide applications not only in the understanding of disordered materials ... -
Studies on Processed Granulated Blast Furnace Slag as Fine Aggregate in Mortars and Concrete
Fine aggregate is essential for the preparation of mortar and concrete. There are attempts to find alternatives to the river sand as the natural sources for fine aggregates are dwindling. Currently, sand mining from river ... -
Lignin and Extractive Tracing - an Alternative approach to Assess and Predict Biogas Yields and Production Rates among Tropical Biomass Feedstocks
Predicting biogas yields from the composition of biomass feedstocks has been difficult primarily due to the variations found in their chemical composition and structure of lignocellulosics. This study aims at understanding, ... -
Development of high throughput methodologies to isolate stabilized mutants and to identify interfacial residues
When eukaryotic or unstable proteins are overexpressed in bacteria, these often form insoluble aggregates called inclusion bodies (IB). Refolding the proteins from inclusion bodies can be challenging, resulting in low ... -
Industry 4.0 Maturity and Readiness Assessment: A case of a Manufacturing Organization
The manufacturing sector is the economic backbone of a country and has traditionally played a key role in the growth of almost every country in the world. In India, the manufacturing sector contributes 17 percent to the ... -
New Algorithmic and Hardness Results in Learning, Error Correcting Codes and Constraint Satisfaction Problems
Approximation algorithms are a natural way to deal with the intractability barrier that is inherent in many naturally arising computational problems. However, it is often the case that the task of solving the approximation ... -
Design of Curved Aggressive Annular Diffusers
For economical air transportation, aero engines with lower specific fuel consumption, lower emissions and lower noise levels are required. To this end, the use of turbofan engine with high bypass ratio is an option. With ...