etd AT Indian Institute of Science: Recent submissions
Now showing items 1021-1040 of 9462
-
Role of ozone in sun weather relationships
This thesis comprises analytical studies of the relationships between solar/geomagnetic activity and the day-to-day variation of total atmospheric ozone at five selected stations — Resolute, Churchill, Hohenpeissenberg, ... -
Sensitivity studies on the structure of the monsoon desert heat flow.
The sensitivity of the atmospheric response to large-scale summer continental sensible heat sources, such as those prevailing over the great deserts of the Afro-Asian landmass, is studied in this thesis. Understanding this ... -
On numerical solution of first order system of hyperbolic equations
This thesis is based on the investigations carried out by the author on the numerical solution of first-order systems of hyperbolic equations. The thesis has been organized into four chapters. The first chapter is introductory ... -
Effects of solar and geomagnetic activity on stratospheric temperatures
This thesis comprises analytical investigations of temperature variations in the 21–60 km altitude region related to solar and geomagnetic activity. The analyses have been carried out using Meteorological Rocket Network ... -
Studies on effects of solar and geomagnetic activity on mesospheric temperature
This thesis comprises analytical and experimental investigations of the mesosphere, specifically the altitude region 50–90 km. The analytical work consists of correlation analyses of mesospheric temperature data from ... -
Development of Analytic Methods for a Class of Decision Problems in Urban Road Transport Organizations for Efficient Operation of City Buses
In India, road transport is the dominant mode of transport, accounting for a remarkable 87% of all passenger traffic. The increasing number of private vehicles, such as cars, significantly contributes to traffic congestion ... -
Electrochemical - Morphological Evolution of the Positive Electrode in Autonomous Soluble Lead Redox Flow Batteries
The world is witnessing a transition where reliance on renewable energy is increasing. As of 2025, the renewable electricity capacity has risen to roughly 5000 GW (from 2000 GW in 2010). This progressive growth is to be ... -
Development of a Two-LED based Smartphone Footprint device for Sickle Cell Anemia and Hemoglobin Estimation
Anemia is a serious health concern worldwide, with sickle-cell anemia leading to more severe illness and higher mortality. Globally, sickle-cell disease has historically been associated with very high early-childhood ... -
Molecular insights into the regulation of host unfolded protein response and angiogenesis during Mycobacterium tuberculosis pathogenesis
Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis (TB), continues to co-evolve with the human population, rendering it one of the most significant global health threats among infectious diseases. The ... -
Mineral-Inspired Oxides: Synthesis and Structure, Luminescence, and Electrocatalytic Studies.
Transition-metal oxides (TMOs) and mineral-inspired oxides have emerged as versatile materials owing to their rich structural diversity and tunable physical properties. A broad class of oxide materials such as those adopting ... -
Plug in the pupa: Insights into the evolutionary ecology of the complex life cycle of Aedes aegypti
Multiple traits, including antipredator responses, foraging behaviour, development rate and fecundity, contribute towards an organism’s fitness. These diverse traits interact through shared resources allocated to maximise ... -
Flexible Nanostructured Hydrogen Sensors
Hydrogen is rapidly emerging as a key energy carrier and industrial feedstock in the global transition to cleaner energy systems. However, due to its high diffusivity and flammability, even minor leaks can result in ... -
Treebeard: A Schedule Guided Retargetable Compiler for Decision Tree Inference
The proliferation of machine learning together with the rapid evolution of the hardware ecosystem has led to a surge in the demand for model inference on a variety of hardware. Decision tree based models are the most popular ... -
Shared and distinct mechanisms of saccade preparation, external and internal attention
Everyday activities – like reading an email, watching a football match, scrolling through social media, or window-shopping – all involve quickly scanning complex visual scenes using rapid eye movements called “saccades.” ... -
On High-Speed Curved Compression Ramp Air Intakes
A scramjet, i.e., a supersonic combustion ramjet, is an air-breathing engine that enables sustained atmospheric flight in the hypersonic regime. It consists broadly of four key components: the air intake, isolator, combustor, ... -
Global Retrieval of Aerosol Absorption Using Multi-Satellite Retrieval: Algorithm Development And Performance Evaluation
Aerosol absorption, quantified by single scattering albedo (SSA), is an important parameter for assessing the climatic impact of aerosols. While there are several satellites providing aerosol optical depth (AOD), the ... -
Harnessing Packed-bed Biofilm Reactors for High-rate Saline Nitrification: An Innovative Application for Intensive Recirculating Aquaculture Systems
Saline effluents containing ammonia are generated by various human activities, including aquaculture, food processing, chemical industries, landfilling, etc. necessitating treatment to mitigate environmental harm. The ... -
Optical Signal Processing using Nested Ring Resonator Based Photonic Integrated Circuits
The continuous advancement of integrated photonics demands compact, reconfigurable, and multifunctional building blocks capable of supporting a wide range of optical signal processing functionalities within a single platform. ... -
A Study of Convergence, Quasi-Optimality, and Error Analysis of Adaptive Finite Element Methods for a class of PDEs
The central objective of this thesis is to carry out a rigorous analysis of finite element methods for second-order linear elliptic PDEs and for a variety of optimal control problems governed by second-order linear elliptic ...