etd AT Indian Institute of Science: Recent submissions
Now showing items 2541-2560 of 6965
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Bile Salts in Supramolecular Chemistry: Synthesis of Fluorescent Nanoclusters, Oxide Nanoflowers, and Anion Effect on Metallogels
In summary, we have explored an interesting pH-dependent sensitization of Tb(III) using methyl salicylate (MS) as a sensitizer in aqueous media. Methyl salicylate was found to be a specific sensitizer for Tb(III) but not ... -
Evolution of Crystallographic Texture and Microstructure in Sputter Deposited NiMnGa Thin Films and Their Influence on Magnetic Properties
Shape memory alloys are the promising candidate materials for sensing and actuator-based applications. Amongst a variety of shape memory alloys, NiMnGa based magnetic shape memory alloys are technologically most important ... -
Design Flood Estimation at Ungauged Locations using Geomorphological Characteristics
Estimates of design flood are necessary at locations of hydrologic structures (e.g., flood control dams, barrages) in studies related to their planning, design and risk assessment. In situations, where failure of hydrologic ... -
Numerical Simulations on the Indentation Behaviour of Shape Memory Alloys
Shape Memory Alloys (SMAs) are increasingly being used as micro actuators, sensors, as self expanding cardiovascular stents and in MEMs based devices because of their ability to recover large values of imposed strain. ... -
Weakly cemented granular materials: study at multiple length scales
Cemented granular systems are encountered at various scales in nature and artificially. We present an experimental study carried out on the structure and mechanical behaviour of weakly cemented granular materials. We study ... -
Understanding Multi-Wavelength Signatures of Galactic Outflows Through 3-D Simulations
Evolution of galaxies is a phenomenon that affects the formation and composition of galaxies, and the intergalactic medium. It is mediated by processes that establish a symbiotic relationship between a galaxy and the ... -
Phase-field modeling of equilibrium shapes of precipitate and growth instabilities in the presence of coherency stresses
Precipitation-hardened alloys are one of the most technologically significant materials that are used for structural applications, where an important mode of strengthening is due to the impediment to the movement of ... -
Hyperspectral Remote Sensing for Land Cover Classification and Chlorophyll Content Estimation using Advanced Machine Learning Techniques
In the recent years, remote sensing data or images have great potential for continuous spatial and temporal monitoring of Earth surface features. In case of optical remote sensing, hyperspectral (HS) data contains abundant ... -
Unidirectional High-Frequency-Link DC to Three-Phase AC Conversion: Topology, Modulation and Converter Design
In recent years, stringent restrictions on greenhouse gas emission due to the present global warming scenario is driving governments and power utilities worldwide behind electricity generation using renewable energy ... -
One-Shot Coordination of First and Last Mode Service in Multi-Modal Transportation
In this thesis, we propose a coordination of the rst and last mode connectivity in a multi- modal transportation system. In particular, we consider a one-shot problem wherein the passengers must be transported to or ... -
Power Electronic Converters for Condition Monitoring and Voltage Equalization of Batteries
Power converters are used in battery-based storage systems in many applications. Apart from the task of regulating the charging and discharging, the power electronic converters can also help to monitor battery condition ... -
Regioselective C-H Amidation Reactions using Directing Group Strategy and its Application in Organic Synthesis
The thesis represents an approach for the C-H bond activation using directing group strategy. The C-H activation happens through five/six-membered metallacycle through concerted metallation deprotonation. Further ... -
Equivalence test for the trace iterated matrix multiplication polynomial
An m-variate polynomial f is affine equivalent to an n-variate polynomial g if m > n and there is a full rank n * m matrix A and a n-dimensional vector b such that f(x) = g(Ax + b). Given blackbox access to f and g (i.e ... -
Optimal Numerical Integration Method for Higher Order Polygonal Finite Elements and its application in microstructure modeling
In conventional Finite Element Method (FEM), triangular and quadrilateral elements are commonly used finite elements and their counterparts with tetrahedral and hexahedral elements in three-dimensions to discretize the ... -
Embryonic Expression of Cytokines: Functional Role of Il-1β During Blastocyst Hatching
The detailed investigation on the embryo-endometrial cytokine expression, in both mouse and hamster, was carried out during the peri-hatching development and it is described in chapter 2. We hypothesize that, for a ... -
Efficient Transceiver Techniques for Media-based Modulation Systems
Conventionally, information bits are conveyed in a communication system by transmitting symbols from a complex modulation alphabet such as QAM or PSK. The wireless fading channel is viewed as a signal distorting medium ... -
Development of a low modulus Ti-Nb-Ta-O alloy for orthopedic applications
Ti-Nb-Ta-Zr based β-Titanium alloys are currently projected as potential candidates for use in orthopaedic implants owing to their low elastic modulus and use of non-toxic elements. However, most of these alloys contain ... -
Harvesting Solar Photon Using TiO2-CdS Nanostructured Semiconductor Assemblies
Abstract The present Thesis discusses various Titanium dioxide (TiO2) - Cadmium Sulfide (CdS) assemblies for efficient harvesting of the solar photon. Inorganic semiconductor nanocrystals such as CdS have attracted ... -
Investigations of Borocarbonitrides and Nanocarbons
The thesis consists of three parts of which Part 1 describes the investigations of borocarbonitrides. In this Part, Section 1.1 provides the synthesis and characterization of different compositions of borocarbonitrides. ... -
Studies on Alkaline Iron Electrodes for Nickel-Iron Accumulators
A battery is a companion whose interests are world-wide and whose society has never-ending interests. Batteries have applications in cars to space and there is ever growing addiction to batteries. A battery consists of two ...