etd AT Indian Institute of Science: Recent submissions
Now showing items 2481-2500 of 6965
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Torque transport, mean velocity profiles and turbulent statistics of a wide-gap Taylor Couette flow
Wall-bounded turbulent flows that possess finite curvature of the mean flow streamlines are known to be starkly different from their plane counterparts. One of the primary distinguishing features of such flows is the ... -
Phase Behaviour of Oppositely Charged Nanoparticles : A Study of Binary Nanoparticle Superlattices
Binary nanoparticle superlattices or BNSL’s have been a major area of research in nanotechnology for the last decade. The conventional lithographic techniques are limited to fabricate features only within a plane while ... -
Evaluation of Btex Contamination in Bengaluru Groundwater and Remediation of Contaminated Water Samples
BTEX (benzene, toluene, ethylbenzene, and xylene isomers) are monoaromatic, volatile organic compounds (VOCs) with single benzene ring and various degree of alkylation. US EPA classifies benzene and TEX (toluene, ethylbenzene, ... -
Characterization of high enthalpy flows in the IISc free-piston driven shock tunnel using Two-Colour Ratio Pyrometry
High temperature and its associated effects set the hypersonic flow regime apart from other class of flows. Viscous dissipation raises the internal energy of the high-kinetic-energy gas as it slows down in the boundary ... -
Methodological Developments in NMR for Chiral Analysis using Selective Excitation
The NMR spectroscopy as usually practiced in isotropic achiral solvents is unable to differentiate enantiomers, unless the intermolecular diastereomeric interactions are imposed with an enantiomerically pure reagent. Chiral ... -
Regulation of S100A2 by TGF-B : Role in Epithelial -mesenchymal Transition and Tumor Growth
Transforming growth factor-β (TGF-β) is a multifunctional cytokine that regulates a plethora of functions including cell growth, development, and differentiation. TGF-β plays a major role in the inhibition of normal cell ... -
Dynamics of Actuated and Interacting Swirl Premixed Flames in Model Gas Turbine Combustors
Lean premixed combustion is preferred in gas turbines because of the reduced (NOx) emissions. However, the combustors operating in lean premixed regime could suffer from problems like flame flashback, flame blowoff and ... -
On Learning and Lower Bound Problems Related to the Iterated Matrix Multiplication Polynomial
The iterated matrix multiplication polynomial (IMM) of width w and length d is the 1x1 entry in the product of d square matrices of size w. The w^2d entries in the d matrices are distinct variables. In this thesis, we study ... -
Catalytic Studies with Ru and Ir Half-sandwich Complexes Bearing NHC Ligands
The thesis describes the study of arene-tethered and untethered Ru half-sandwich complexes as catalysts in the addition of hydroelements (E‒H, E = H, B, Si) across unsaturated C-C, C-N and C-O bonds and transfer hydrogenation ... -
Reversible Redox Switching of First Hyperpolarizability (Β) of Metallorganic Complexes
The concept of molecular switches has garnered enormous interest because of the vital role of these switches as components in molecular electronic/photonic devices, signal transmission and optical communication. Compounds ... -
A Method of Designing Museum Services Handling System for Ubiquitous Visitors
Advances in mobile computing technologies have enabled the personal ubiquitous computing environment for ubiquitous visitors. In the case of museum services, a ubiquitous visitor is free to access his/her interested exhibit ... -
Transient Vector Estimator Based High Dynamic Performance Control and Kalman Filter based Self Commissioning of Induction Motor Drives for Electric Vehicle Applications
Induction machine, the work horse of the industry, has been widely used in industrial drives. The most common and efficient way to control the speed of induction machine is with variable frequency drives. The variable ... -
Mesoscopic Heat engines beyond the Limits of Thermodynamics
Despite the central role that Equilibrium thermodynamics has played in our understanding of many body systems, the underlying theoretical construct is strictly correct only in the ‘Thermodynamic Limit’. On the other hand, ... -
Next Generation High Electron Mobility Transistor based on InGaN Quantum Well Channel
In past two decades and more, III-N based high electron mobility transistors (HEMTs) have generally used GaN as the channel layer. During this period, the quest for operating it at higher frequencies has resulted in the ... -
AlGaN/GaN Heterojunction Based Hall Sensors for Magnetic Field Sensing over Wide Temperature Range
Hall sensor has proved to be an attractive solution for sensing requirements in electric machines for direct measurement of fields or indirect estimation of physical quantities such as current, speed and torque. Current ... -
Transcriptional Regulation of Fatty Acid Transport by Sirtuin 2
The heart is a highly dynamic organ and under normal physiological conditions, it is heavily dependent on fatty acid oxidation to meet its energy requirements (Abumrad and Goldberg 2016). Fatty acid transport is a crucial ... -
Concentration Gradient Driven Natural Convection in Soluble Lead Redox Flow Batteries
Low cost and long cycle-life energy storage systems are needed to harness renewable sources of energy at large scale. Among the options available, redox ow batteries (RFB) offer the maximum potential. The vanadium based ... -
Exploration of New Materials and Processes for Ion Sensitive Field Effect Transistors
Ion Sensitive Field Effect Transistors (ISFETs) find applications as front end transducers in the biomedical domain as a biosensor. The favourable characteristics of ISFETs like sensitivity, speed, miniaturization, easy ... -
Oleosin, a Bifunctional Enzyme is Phosphoregulated by a Protein Kinase
In eukaryotic cells, lipids are indispensable principal components that vitiate biological life. Lipids are classified into two major groups, polar and non-polar lipids. Polar lipids are phospholipids, whereas non-polar ... -
Ecology of predator-prey interactions in the context of mate searching
Animals communicating in the context of mate searching benefit by increasing their likelihood of encountering mates. Mate searching begins the important process of individuals of opposite sexes forming pairs, which is ...