Now showing items 1-20 of 12939

• Single-Molecule Optical Imaging with Improved Spatial Resolution and Chiral Fingerprinting for Disease Biophysics 

  Aravinth, S

  Optical light microscopy has a limitation in resolving finer details below the diffraction limit. This diffraction limit is explained by Abbe and Rayleigh, and it depends on the Numerical Aperture and wavelength of ...

• Polarization-Resolved Wave Propagation in Uniaxial Crystals: Interface Phenomenon, Prism Geometry and Photonic Crystal Applications 

  Sain, Priyank

  The propagation and control of electromagnetic waves in anisotropic media are governed by the tensorial nature of their dielectric response, giving rise to propagation characteristics that differ fundamentally from those ...

• Exploring Oscillating Air-Liquid Interface Based Microfluidic Platforms for Lab-On-A-Chip Applications 

  Vinaya

  This thesis presents a microfluidic platform that employs an oscillating air-liquid in terface (ALI), actuated using low-frequency, high-amplitude flexural waves, to enable multiple lab-on-a-chip functionalities. The ALI ...

• Spatiotemporal Modelling of Extreme Hydro-climatological Events 

  Lekha, Posa Poornima Chandra

  Extreme hydroclimate events, particularly intense rainfall and floods, are becoming increasingly frequent and unpredictable under the combined influence of natural climate variability and anthropogenic climate change. ...

• Interaction of a Vortex Ring With a Single Bubble/Rigid Buoyant Particle: Effect of Particle Shape and Vortex Curvature 

  Dixit, Manoj N

  Multiphase turbulent flows are found in many natural flow settings like plankton and air bubbles in the upper ocean, formation of ice clouds, sediment-laden river flows, vapour bubbles in geysers, and industrial applications ...

• Collective Escape Dynamics and Leadership in Group-living Animals 

  Jadhav, Vivek

  Group-living organisms across taxa coordinate their movement to evade threats or predators. However, how information about threats, often available only to a few individuals within the group, efficiently propagates among ...

• Integration of AlGaN/GaN HEMTs on Silicon Substrates for RF Applications 

  Gowrisankar, Aniruddhan

  Gallium nitride (GaN) represents the next leap in power semiconductor technology, due to a favorable combination of a large energy bandgap and superior electron transport properties. Additionally, the ability to form high ...

• From Diet to Fitness: Nutritional Ecology of Behaviour, Physiology, and Life-History in Indian Spiny-Tailed Lizards 

  Joshi, Mihir Makarand

  Animals must consume nutrients in optimal amounts and ratios to maximize their fitness. However, most animals face various constraints to foraging optimally in their natural habitats. While studies conducted in the lab and ...

• What Really Limits GPU Query Execution? Analyzing Query Execution Using a Learned Performance Bottleneck Model 

  Ravindranath, Chethan

  GPUs are increasingly used for analytical query processing due to their massive parallelism and high memory bandwidth. While most existing GPU query engines rely on library-based execution, we argue that compilation is ...

• Advancing Visual Reasoning Capabilities of Multimodal LLMs Beyond Natural Images 

  Gupta, Rishi

  Artificial Intelligence is undergoing a paradigm shift with the emergence of Large Language Models (LLMs) and Multimodal Large Language Models (MLLMs). Although many of these models demonstrate remarkable capabilities on ...

• High-Field Transport, Electro-Optical Dynamics, and the Interplay with Defects in 2D Transition Metal Dichalcogenides 

  Verma, Rupali

  Atomically thin Transition Metal Dichalcogenides (TMDs) are leading candidates for post-silicon logic and memory devices, and next-generation optoelectronics. They are also highly promising for emerging quantum technologies, ...

• Permanence of River Flows and Societal Advancements using Non-Electric Hydro Powered Pumps -The Taipadar River Basin Story- 

  Tripathi, Shivangi

  This work critically examines a pioneering 16-year experience in which non-electric pumping has been formulated and implemented. The central question being discussed is: Can non-electric pumping improve human lives without ...

• Analysis of free convection heat transfer over smooth and rough surfaces 

  Mahapatra, Omshree

  Heat transfer in flows created by buoyancy, or natural convection, is a widely studied topic across various disciplines spanning the natural flows as well as those with engineering applications. The convective heat transfer ...

• Mechanistic and Stereochemical Insights into Dirhodium and Enzyme Catalyzed Reactions 

  Harariya, Mahesh Singh

  Transition metal–catalyzed carbene generation from diazo compounds constitutes a powerful strategy for constructing C–X bonds (X = N, O, S, Si, B, etc.), employing catalysts such as Rh, Pd, Cu, Fe, Au, and enzymes. Amongst ...

• Enhancing Precise Label Prediction and Imbalance Robustness in Multi Label Learning 

  Mishra, Sourav

  Multi-label learning (MLL) addresses learning problems in which a single data instance can belong to multiple semantic categories simultaneously. This setting naturally arises in many real-world applications such as image ...

• Unraveling magnetic features from laboratory to astrophysical domains: Quantum and classical effects 

  Aggarwal, Srishty

  Magnetic fields play a fundamental role in governing the dynamics of physical systems across laboratory and astrophysical environments, operating at both quantum and classical levels. At the quantum scale, we examine the ...

• A Functional Insights into Beadex: A Novel Regulator of Phagocytosis and Immune Signalling in Drosophila melanogaster 

  Jain, Sakshi

  Transcription factors regulate development by controlling spatial and temporal gene expression, and their dysregulation is linked to malignancies such as leukemia. The LIM-domain only (LMO) family of transcriptional ...

• Multicomponent Diffusion Analysis: Development of a Novel Estimation Method with Strategic Experimental Design and PINN-Based Numerical Inverse Modelling 

  Sadhu, Suman

  Historically, quantitative multicomponent diffusion analysis was considered impossible due to the complex, serpentine nature of diffusion paths, which could not be intersected in multicomponent space to estimate diffusion ...

• Exploring Emergent Quantum Phenomena in Two-dimensional Materials 

  Mishra, Subhendu

  The most crucial aspect of modern electronics is to replace conventional charge transport with an alternative source, such as spin or valley, to design a compact and non-volatile storage system. In light of this, ...

• In Silico Study on Equilibrium Dynamics of Macromolecules in Dilute Solutions 

  Pattnayak, Prabeen Kumar

  Brownian motion serves as a connecting link between the physical and biological sciences, observed in phenomena ranging from the random jittery movements of simple pollen grains in water to the intricate thermal motion of ...