Division of Physical and Mathematical Sciences: Recent submissions
Now showing items 221-240 of 901
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Novel Spectral Processing Methods in NMR – Wavelet Transform and Pattern Based Analysis
NMR spectroscopy provides a variety of information leading to an understanding of the properties of different materials. To extract this information from the experiments, one needs to have noise and artifacts free spectra ... -
Ultrafast Study of Layered 3D Topological Insulators, Graphene-Gold Hybrid Plasmonic Nanostructure and Ultrathin Gold Nanowires
In a typical time-resolved pump-probe spectroscopy, ultrafast laser pulses (pulse width ~ 100 fs) are utilized to induce a perturbation in the material of study within a time much shorter than the characterisitic lifetime ... -
Thin Film Electronics on Edible Substrates
The recent years have seen the development biocompatible ingestible and implantable devices for human health monitoring. The major issue is the toxicity of the organic materials (polymers) used in the implants and consequently ... -
Investigation of the Thermoelectric Properties of Single and Double Substituted Cu12Sb4S13 Tetrahedrite
According to the current energy consumption, out of the total energy supplied as input in various sources such as power plants, factories, automobiles, etc., only around 30% of the energy is converted to useful work. The ... -
Application of Experience Mapping based Predictive Controller (EMPC) for Under-damped and Unstable Systems
Experience Mapping based Predictive Controller (EMPC) is a concept based on the principle of Human Motor Control, that was earlier developed and applied to control a well damped Type 1 system. In this thesis, the concepts ... -
Numerical Studies of Spiral- and Scroll-wave Dynamics in Cardiac Tissue: (1) Spiral- and Scroll-Wave Turbulence; (2) Spiral- and Scroll-Wave dynamics in Anatomically and Physiologically realistic Mathematical Models for Canine and Human Ventricular Tissue
A summary of the main results of our studies is given below. In most of our work, we use three mathematical models for cardiac myocytes, namely, the Panfilov model, the Aliev-Panfilov model, and the Hund-Rudy-Dynamic ... -
Applications of Moonshine Symmetry in String Theory
In this thesis we study the applications of Mathieu moonshine symmetry to compacti cations of supersymmetric string theories. These theories are compacti ed on a 6 dimensional manifold K3 T2. The main ingredient in ... -
Tuning Andreev reflection at Graphene - superconductor junction: from zero field to quantum Hall regime
Andreev reflection (AR) is the underlying phenomena that determines the quasiparticle dynamics at the junction of a superconductor with any non-superconducting material, which in turn determines the transport properties ... -
Multiband Modelling and Radio Observations of Gamma Ray Burst Afterglows
The widely popular and successful standard fireball model for Gamma Ray Burst (GRB) afterglows is based on ultra-relativistic external shocks sweeping up matter around the explosion site to accelerate electrons up to GOV ... -
Aspects of Heavy Supersymmetry
The recent discovery of a Higgs boson with a mass around 125 GeV, taken together with experimental results from flavor factories, dark matter direct detection, and searches for SUSY particles in the LHC suggest that ... -
Elucidating Intricate Excited-state Dynamics in Molecular Systems Using Time-resolved Transient Absorption and Ultrafast Raman Spectroscopy
Abstract The excited-state dynamics of molecular materials is of great importance to understand early time photodynamics. We have used Femtosecond Transient Absorption (fs-TA) and Ultrafast Raman Loss Spectroscopy (URLS) ... -
Characterization of Brain Signals Across Scales Using Temporally Modulated Visual Stimuli
Electrical signals from the brain can be recorded at several different scales, ranging from spiking activity to local field potential (LFP) in animals to scalp electroencephalogram (EEG) in humans. Each signal represents ... -
Higgs phenomenology and Dark Matter prospects in MSSM, NMSSM and U(1) extended SM
Particle physics today is at a juncture where all particles predicted within Standard Model (SM) have been discovered at the particle colliders while no particles from the realm of physics beyond the Standard Model (BSM) ... -
Multi-Dimensional Solid State NMR - Methods Development and Application to Materials
In recent years, the scope of application of solid-state NMR to different areas has been witnessing a significant increase. Primarily, this is due to the possibility of routine use of proton NMR spectroscopy at ultrafast ... -
Light and magnetic field induced coherence effects in atoms
In this thesis, we have studied the coherence effects in atoms induced by light and a magnetic field. After giving an introduction to the contents of the thesis, details about the theory and the experimental setup used are ... -
Wearable Sensors using Solution Processed 2D Materials
Wearable sensors, as the name implies, are devices that can be donned onto the body in order to continuously detect, monitor and analyze various signals generated by the subject and the immediate surroundings. Applications ... -
Electric Field Assisted Self-Healing (eFASH)
Circuit failure due to the open faults in the interconnect is the most common problem regarding the reliability of electronic systems. This is particularly true for large-area electronic systems such as display, image ... -
Fabrication and Characterization of Multilayer MoS2 Coated Etched Fiber Bragg Grating Sensors and Side-hole Packaged Fiber Bragg Grating Sensors with Enhanced sensitivity for Different Applications
In summary, MoS2 coated, etched FBG sensors have been used for various applications. Firstly, the strain sensitivity has been studied; a high strain sensitivity of 6.3 pm/μɛ with a linear range of sensing response from 0 ... -
Correlation Functions in the Finite Toom Model
This thesis is divided into four chapters. In Chapter 1, we give some basic definitions and results that we need throughout the thesis. In Chapter 2, we describe the pn0;n1q-Toom model and prove some known results about ... -
Duality for Spaces of Holomorphic Functions into a Locally Convex Topological Vector Space
Consider an open subset O of the complex plane and a function f : O ÝÑ C. We understand the concept of holomorphicity of a complex-valued function. Suppose a function f defined on O takes values in a locally convex ...