etd AT Indian Institute of Science: Recent submissions
Now showing items 1921-1940 of 6964
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Revisiting Statistical Techniques for Result Cardinality Estimation
The Relational Database Management Systems (RDBMS) constitute the backbone of today's information-rich society, providing a congenial environment for handling enterprise data during its entire life cycle of generation, ... -
An Investigation into the Ancillaries, Parallel Operation of Machines with Voltage Source Inverters, and Development of Switched Capacitor Converters for a Microgrid
With the increase in energy demand worldwide, there is a push towards integrating distributed generation (DG) in parallel with the utility grid at the distribution level. The DGs are integrated into the electrical network ... -
Low Power Resistive Photon- and Gas- Sensors
Sensors, be it for temperature, pressure, acoustic, light or gas to name a few have become an indispensable part of human life. Light sensors or photodetectors have widespread usage in modern portable electronics as camera ... -
Overcoming Challenges Associated with Designing of Thermoelectric Materials: DFT and Machine Learning Approaches
Search for clean and renewable energy resources has driven recent interest in designing thermoelectric materials that convert the waste heat to useful electricity. High performance thermoelectric materials require excellent ... -
Polyvinylidene fluoride (PVDF) based Nanocomposites with Multi-layered Architecture Containing Core-shell Nanomaterials for Electromagnetic Interference Shielding
With the emergence of smart electronic devices, we have witnessed a rapid surge in the growth and subsequent drive-in for the miniaturization of electronic interfaces. Any electronic gadget that transmits, distributes, or ... -
Topological Derivative-based Optimization of Fiber-reinforced Structures, Coupled Thermoelastic Structures, and Compliant Mechanisms
The topological derivative of a functional quantifies the sensitivity with respect to an infinitesimal domain perturbations such as a hole, an inclusion, a source term, a crack, etc. In this thesis, topological derivatives ... -
Non-ergodicity in Interacting Quasiperiodic Systems and Disordered Fock Lattice Models
In this thesis, we study different aspects of many body localization in closed quantum systems. Many body localized systems are isolated interacting quantum systems that fail to thermalize on their own (non-ergodic) and ... -
Structural and Solvent Effects on Excited State Dynamics of Rhenium(I) Tricarbonyl α-Diimine Complexes: A Time-Resolved Spectroscopic and Computational Study
The nature of the lowest excited state in rhenium(I) complex with 1,10-phenathroline as ligand was first reported by Mark Wrighton and David. L. Morse. Since then many rhenium(I) complexes with different ligands having ... -
Statistical Inference in Biological and Diagnostic Systems
Biological systems are exceptionally good at sensing their environment with extraordinary precision. Certain single cellular organisms are even capable of detecting chemicals of the order of a single molecule. To achieve ... -
Translational readthrough of AGO1 mRNA and its regulation by let-7a microRNA
During translation, the message encoded in mRNAs is decoded by ribosomes to synthesize proteins following strict canonical decoding rules. This process is tightly regulated and several mechanisms exist in cells that ensure ... -
Performance improvement of meshless methods for practical time domain electromagnetic analyses.
Solution of Maxwell's equations for practical antennas, filters, waveguides and other microwave devices requires use of numerical methods. Popular numerical methods include the finite difference time domain method (FDTD), ... -
Synthesis and Functionalization of Carbon and Sulfur-based Nanomaterials: Physical Properties and Molecular Recognition
In recent years carbon-based nanomaterials are growing rapidly in the field of science and technology, due to the tunable optical and physical properties such as electronic arrangement, photostability, flexibility and ... -
Molecular Dynamics Investigations of Hybrid Nanopores for Single Molecule DNA Sequencing
High throughput methods accelerate the drug discovery, biomolecule detection and sequencing applications pipeline. Single molecule detection technique facilitates the implementation of high throughput methods by eliminating ... -
Design and Development of Novel Fiber Bragg Grating based devices for various Biomedical applications
Sensors have always been an integral part of human life. Apart from the numerous inherent sensors which the human body possesses, there are various man-made sensors which has been studied and implemented widely to fulfill ... -
Roles of the ribosomal protein uS12 and the initiation factor 3 in the maintenance of fidelity of translation in Escherichia coli
The flow of genetic information within biological systems according to the central dogma of molecular biology entails protein synthesis as the last step towards deciphering the message encrypted in the genetic code in ... -
Electrochemical and Spectroscopic Investigations of Some Redox Active Biomolecules
The thesis attempts to ask a few questions related to heme electrochemistry and provide possible answers to these in terms of experimental results obtained and reported in the current literature. It is expected that the ... -
Microstructure, mechanical behavior, and thermal stability of in-situ polymer-derived ceramic reinforced Al-based composites
Al-based metal matrix composites (MMCs) show a high strength-to-weight ratio which makes them attractive for the aerospace and automobile industries. The reinforcements for the same have conventionally been micron-sized ... -
Shape-constrained Biomedical Image Segmentation and Applications
The detection, segmentation, and delineation of the targeted regions of interest in biomedical images are fundamental steps for computer-aided assessment and prescreening. In this thesis, we focus on shape-constrained ... -
Synergetic effect of electrostatic gating and interfacial states in molecular switching operation in molybdenum disulfide based thin hetero-interfaces
Nowadays, two-dimensional (2D) materials have stimulated intensive research due to their intriguing physical properties and excellent electronic application. van der Waals (vdW) semiconductors are attractive for electrically ... -
Ethylene Glycol in the Liquid State: Structure, Conformation and Dynamics - A Study Using Ab Initio Molecular Dynamics Simulations
Ethylene glycol (EG) is an important organic molecule with unique properties and a wide range of applications. The EG molecule shares a structural motif with many biomolecules and serves as a part of the training set for ...