etd AT Indian Institute of Science: Recent submissions
Now showing items 881-900 of 6569
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Nonlinear Optical Enhancement Studies in Silicon-based Resonant Metasurfaces
Metasurfaces are two dimensional arrangements of building blocks called meta-atoms which have been found to be useful to manipulate amplitude, phase, polarization of light at the nanoscale. Using these properties, functional ... -
Robustness of Neural Activity Dynamics in the Medial Entorhinal Cortex
Biological systems exhibit considerable heterogeneity in their constitutive components and encounter stochasticity across all scales of analysis. Therefore, central questions that span all biological systems are: (a) How ... -
Inverse Problems in 3D Full-wave Electromagnetics
An inverse problem in Electromagnetics (EM) refers to the process of reconstructing the physical system by processing the measured data of its electromagnetic properties. Inverse problems are typically ill-posed, and this ... -
Multi-level Partitioning Algorithms & Reliability Analysis for Transit Networks
Public transit systems are an indispensable part of any metropolitan city. Its success depends on many factors, chief among which is the ease with which users can query for optimal journeys using mobile apps. Conventional ... -
Development of Microneedles for Transdermal and Intradermal Drug Delivery
Transdermal drug delivery has an enormous potential for painless therapeutics. Many drugs designed for systemic action are more efficient when delivered through the skin compared to oral administration as their degradation ... -
Performance Characterization and Optimizations of Traditional ML Applications
Even in the era of Deep Learning based methods, traditional machine learning methods with large data sets continue to attract significant attention. However, we find an apparent lack of a detailed performance characterization ... -
Regional and Local-scale Analysis of Landslides Induced by Rainfall and Earthquakes
Landslides are major natural disasters which pose a significant risk to lives and infrastructure globally. As urbanization is increasing due to the increasing population in mountainous regions, the risk due to landslides ... -
Towards Electronic Scale Dynamics of Chemical Bonding in Isolated Molecules and Solvated Species
The chemical bonding in molecules and molecular clusters is determined by the nature of the electron density distribution between the atoms. Over the past century, different theories such as Lewis’s bond, valence-bond ... -
Optimizing Matrix Multiplication for the REDEFINE Many-Core Co-processor
Matrix-matrix multiplication is an important operation for many applications and hence it is required to be parallelized optimally for the architecture the applications will run on. REDE- FINE is a many-core co-processor ... -
Transport of Intensity Equation based Quantitative Phase Imaging of Red Blood Cells
This thesis reports the characterization of Red Blood Cell (RBC) morphology in a non-contact and label-free manner using a flexible, low-cost continuous imaging system. Detection of abnormalities in red blood cell ... -
Learning to Perceive Humans From Appearance and Pose
Analyzing humans and their activities takes a central role in computer vision. This requires machine learning models to encapsulate both the diverse poses and appearances exhibited by humans. Estimating the 3D poses of ... -
Design, Control and Experimental Validation of a Robust Adaptive Feedback Linearization Controller for a Quadcopter Manipulator System
A quadcopter manipulator system (QMS) is an aerial robot comprising a quadcopter with a three degree of freedom manipulator mounted at the bottom of the vehicle. An aerial robot can reach otherwise inaccessible ... -
Crustal evolution and tectonic processes of the Madras Block, India
The Neoarchaean (2.8–2.5 Ga) era in the earth’s history witnessed significant crustal growth related to the amalgamation and dispersion of ancient continents. The processes leading to the formation and destruction of the ... -
Shock tube experimental and advanced computational investigations on pyrolysis of cyclohexane derivatives and C2 + C2 reaction
My thesis involves studying the pyrolysis/thermal decomposition of cyclohexane derivatives (important constituents of conventional transportation fuel). From the literature as well as the composition analysis of two fuels ... -
C-H Bond Functionalization and Tandem Cyclization with Alkynoates and Maleimides Using Directing Group Strategy
The thesis presents manganese‒ and rhodium‒catalyzed C‒H bond activation and tandem cyclization reactions. These reactions lead to the construction of carbon‒carbon bonds using directing group strategy. The thesis is divided ... -
Design and Characterisation of Rotating Gliding Arc Reactor for Dilute Hydrocarbon Conversion Applications: Experiments and Simulations Studies
In recent years, non-thermal plasma technology is becoming popular for chemical applications involving conversion/abatement/decomposition of compounds of interest. The specialty of non-thermal plasmas is to activate chemical ... -
Mode Coupling and Nonlinearities in Micro/Nano Electromechanical Systems
Micro and nanoelectromechanical systems have shown tremendous potential in applications ranging from sensing to obtaining ultrastable oscillators for timing. They have also opened avenues for fundamental quantum studies ... -
Design and Performance Investigation of Supersonic Air-Intakes
Supersonic air-intake is an essential component of a ramjet engine. Typically, a ramjet powered missile that operate over a range of Mach numbers and maneuverability conditions uses a fixed geometry intake to ensure ... -
Operating System Support for Efficient Virtual Memory
Computers rely on the virtual memory abstraction to simplify programming, portability, physical memory management and ensure isolation among co-running applications. However, it creates a layer of indirection in the ... -
Diversity and distribution of mixed-species foraging groups in the Lakshadweep Islands, India
Species interactions are known to shape biological communities. While antagonistic interactions like competition and predation are well known, cooperative interactions have received comparatively less attention. Mixed-species ...