etd AT Indian Institute of Science: Recent submissions
Now showing items 961-980 of 6865
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Magnetically powered helical nanoswimmers
From flocking birds to migrating cells, ‘active matter’ is ubiquitous in the natural world. Almost all known life forms are based on self-propelled entities working collectively to create large-scale structures, networks, ... -
Anthropogenic Influence on River Water Quality
Anthropogenic factors such as climate change, land use land cover change and industrial and population growth can influence river water quality. Climate change affects water quality due to changes in stream temperature and ... -
A study of the evolution of the bulges and disks of spiral galaxies in interacting and isolated environments
Galaxies are usually found in groups and clusters where they interact with each other gravitationally. These interactions affect the internal dynamics of the galaxies. In this thesis, we have studied the effect of flyby ... -
Novel Neural Architectures based on Recurrent Connections and Symmetric Filters for Visual Processing
Artificial Neural Networks (ANN) have been very successful due to their ability to extract meaningful information without any need for pre-processing raw data. First artificial neural networks were created in essence to ... -
Short Circuit and Open Circuit Natural Frequencies of 3-Φ Transformers: Derived Analytical Expressions and its Applications
Frequency Response Analysis (FRA) method is perhaps the most sensitive tool that can detect even the slightest of winding/core movements. High sensitivity, non-invasiveness, non-destructiveness, and on-site capability are ... -
Interfacial Engineering of Hierarchical Carbon Fiber Reinforced Epoxy Laminates for Mechanical Property Enhancement and Self-healing Ability
Carbon fiber-reinforced epoxy (CFRE) laminates have become a significant component in aircraft industries over the years due to their superior mechanical and highly tunable properties. However, the interfacial area between ... -
HBS Constrained Antiparallel β-Sheets and Flat Toroid Turns; Homoserine, Thioamide and 1,3-Thiazine Containing Peptidomimetics: Design, Synthesis, Conformational Analyses and applications
In chemical biology, short peptidomimetic biological active models have been widely used for anti-microbial activity, drug development, catalysis, and amyloidogenesis. In this thesis, I have synthesized several unnaturally ... -
Development of A Reconfigurable Synchronous Machine Emulation Platform
Studying the dynamic behaviour of non-linear complex power systems in a laboratory is very challenging. Early experimental platforms used micro-alternators to emulate the behaviour of fixed steam and hydro turbine models. ... -
B, N containing π- conjugated systems: room temperature phosphorescence, fullerene complexation, and cell differentiation
Advances in heteroatom (B, N, and B-N) incorporated π-conjugated systems have attracted considerable attention because of their desirable properties and widespread applications. Substitution of isoelectronic B–N units for ... -
Interaction of bubble(s) and buoyant rigid particles with vortical structures: Towards understanding bubbly turbulent flows
Bubbly turbulent flows occur in many places, such as in chemical reactors and geophysical applications, besides interest from the drag reduction perspective using injected bubbles in a (water) boundary layer. In these ... -
Electronic, Magnetic and Local structure of Some Selected Strongly Correlated Systems
According to independent electron band structure theories, transition metal oxides (TMOs) with partially filled 3d valence band are predicted to be metallic in nature. Though in reality, most of them are insulators. Mott ... -
Enantioselective Annulation Reactions: From Fischer Indolization to de novo Arene Construction
In summary, we have developed the first decarboxylative [4+2]-annulation of ethynyl benzoxazinanones with azlactones for the enantioselective synthesis of cyclic α-quaternary α-acylaminoamides.25 This direct and modular ... -
Epigenetic modulation of Foam cell generation during Mycobacterium tuberculosis/ Cryptococcus neoformans infection
Foamy macrophages or Foam cells are a critical cellular component of the granuloma formed during pulmonary infection. These lipid rich cells generally contain neutral lipids, Cholesteryl Esters (CE) and/or Triglycerides ... -
Electron Microscopy Investigations on Solution Grown Stannous Oxide Nanosheets
In this thesis, motivated by the possibility of studying rich scientific phenomena using morphology controlled single crystals, experimental observation of new features in the growth and structure of layered oxide materials ... -
Comprehensive Study on Synthesis and Characterization of Nanocellulose Reinforced Green Composites
Environmental issues caused by the non-biodegradability of synthetic thermoplastics have increased interest in more environmentally friendly alternatives that should be derived from renewable resources. This work focuses ... -
Metabolic Regulation of Gametocytogenesis in Malaria
Plasmodium sp. is an obligate intracellular protozoan parasite causing malaria and is responsible for more than 500,000 human deaths annually. P. falciparum and P. vivax are the two major species causing malaria in humans. ... -
Developing an Analytical Model to Predict Customer Churn for Customer Satisfaction (CS) and Customer Loyalty (CL) with respect to Automobile After Sales Service Centres (AASSC)
Customer Satisfaction has always been a key to success for any automobile after sales service centre (AASSC). To retain customer satisfaction (CS) and customer loyalty (CL), it is crucial for any AASSC to track the important ... -
Structure of Turbulent, Swirling Round Jets
The present study deals with the numerical analysis of the effect of the swirl in the self-preservation region of the turbulent round jet. However, a large number of literature exists for the analysis of near-exit regions—very ... -
Metal Ion Mediated Riboswitch Folding and Cognate Ligand Sensing
Riboswitches are noncoding RNA molecules that can control gene expression upon cognate ligand binding. Riboswitches are primarily present in bacteria and are crucial for bacteria's survival, which makes riboswitches ... -
Scanning Probe microscopy of van der Waals heterostructures and non-equilibrium magnetotransport in graphene
Graphene is a two-dimensional semimetal that has linear dispersion in energy-momentum space. When graphene is subjected to a perpendicular magnetic field, the dispersion is no longer linear, resulting in discrete energy ...