etd AT Indian Institute of Science: Recent submissions
Now showing items 1261-1280 of 6777
-
The multiphase interstellar medium: A study of various physical and kinematical properties
Interstellar medium (ISM) is the relatively empty space in between the stars. It has different phases, like, neutral, molecular, and ionized. Neutral interstellar medium, which is pervaded all over the galaxy, is sometimes ... -
Exploring Nature's Inventory: Investigating the Role of Amide to Thioamide Substitution on Protein Stability
The peptide backbone holds a protein together and plays a crucial role in guiding its three-dimentional structure. The tertiary structure of proteins regulates several biological processes. Therefore, peptide bond modification ... -
Role of Friction in Microswimmer and Active Filament Motion
Friction is pervasive in all fields of science. It is the key factor that emerging technologies involving autonomous motion at micron scales such as micro-bots need to overcome in order to be efficient. They fall in the ... -
Identification, characterization, structure, and assembly of type III toxin-antitoxin systems from Escherichia coli
Bacteria adopt several defense strategies to enable their survival against the environmental threats they encounter from time to time. Toxin-antitoxin (TA) systems are being understood as a key bacterial defense mechanism ... -
Role of Fiber Orientations in the Mechanobiology of Cells under Stretch
Fiber reinforcement plays an important role in the structure and function of biological materials. Soft connective tissues in human body like artery, heart tissues, skin etc. exhibit anisotropic material responses due to ... -
Evolution of recrystallization texture in face-centered cubic materials: Role of twin boundaries
The phenomenon of recrystallization and corresponding texture evolution in metallic systems has been studied for several decades yet not understood completely. The complexity of the problem arises due to its dependence on ... -
Stable isotope and biogeochemical study of arsenic contamination in shallow groundwater at seasonal time intervals from West Bengal (Nadia district)
Seasonal monitoring of groundwater is essential to ascertain safe water for the population and ecosystem for drinking, irrigation, domestic purposes and to keep track of groundwater quality with natural (climate change ... -
Electromechanical properties of PbTiO3 based piezoelectric ceramics and energy harvesting application of their flexible polymer composites
Ferroelectric and piezoelectric polycrystalline ceramics exhibiting large electromechanical response are sought after in electronic devices such as actuators, transducers in sonar, sensors, accelerators, aerospace, ... -
Macroscopic crowd flow and risk modelling in mass religious gathering
Understanding the principles and applications of crowd dynamics in mass gatherings is very important, specifically with respect to crowd risk analysis and crowd safety. Historical trends from India and other countries ... -
Exploring carrier dynamics in van-der-Waals heterostructures with shot noise spectroscopy, thermoelectricity and opto-electronic study
In the last two decades, there has been tremendous progress in two-dimensional (2D) - material research. It is mainly due to the availability of a large selection of 2D-materials and their van-der-Waals heterostructures. ... -
Allylic Halogenation Route to Latent-Active Trans-Glycosylation of Allyl Glycoside Donors
Allylic halogenation of allyl glycosides as a new route to allyl glycoside donors in glycosylations is investigated in this thesis. Allyl functionality is one of the commonly adopted protecting groups to hydroxyl groups ... -
Aqueous Binary Mixtures: A Study Using NMR Measurements and ab initio Molecular Dynamics Simulations
Binary mixtures having a combination of hydrophobic and hydrophilic groups, such as waterdimethyl sulfoxide (DMSO), water-methanol, water-ethanol, water-tertiary butyl alcohol (TBA), water dioxane, and water-glycerol, ... -
Experimental and Numerical Studies on Chemically Active Flame Inhibitors
Fire hazards pose an increasingly potent threat to modern societies. Early identification and mitigation of fire hazards are crucial to avoid the loss of human lives and property. Recent research suggests that finely-atomized ... -
Tailoring optical and electrical characteristics of layered materials through van der Waals heterojunctions
The feasibility of isolation of layered materials and arbitrary stacking of different materials provide plenty of opportunities to realize van der Waals heterostructures (vdWhs) with desired characteristics. In this thesis, ... -
Design and Development of Fiber Bragg Grating Tactile Sensing Devices for Novel Applications in Engineering and Biomedical Fields
Among the five human basic senses, touch is thought to be the sense that makes the world 'real' to us. Tactile sensors are a category of artificial sensors that acquire information through physical touch. Tactile sensors ... -
Low Power Machine Learning Systems for Energy Efficient Edge Devices
Energy-efficient devices are essential in the world of edge computing and the tiny Machine Learning (tinyML) paradigm. Edge devices are often constrained by the available compu- tational power and hardware resource. To ... -
Development of Graphene Palladium Nanocomposite based Flexible Sensors for Strain and Temperature Measurement
In recent years, device manufacturing technology has been shifted from bulk and thin-film materials to nanomaterials, which are emerged as a unique class of materials. Among all the two-dimensional (2D) nanomaterials, ... -
Large Time Behaviour and Metastability in Mean-Field Interacting Particle Systems
This thesis studies the large time behaviour and metastability in weakly interacting Markov processes with jumps. Our motivation is to quantify the large time behaviour of various networked systems that arise in practice. The ... -
Theoretical Studies on Excited-State Photodynamics: N-H Dissociation in Aniline and Intermolecular H atom Transfer in the 2-Amino Pyridine Dimer
DNA is composed of light-absorbing molecular units like adenine, guanine, thymine, cytosine, etc. It is well-known that DNA as a whole is photostable upon exposure to sunlight. The photostability of biomolecules suggests ... -
A study on Expatriate's adjustment stressors and coping strategies
Adjustment to the cross-cultural environment is inherently taxing for expatriates. Researchers have investigated the implications of cultural stress on occupational stress. However, gaps remain, as follows: (i) There are ...