Chennai Mathematical Institute

Universal modular properties of generalized Gibbs ensembles and chiral deformations

A bstract We study modular properties of conformal field theories perturbed by holomorphic fields. We prove an asymptotic formula for the modular S-transform of a generalized partition function that includes zero modes of higher spin holomorphic currents. The derivation makes use...

Enhancement of mechanical and antibacterial properties of glass ionomer cement using oyster shell-derived TiO2-hydroxyapatite nanorods for dental restoration application

Glass ionomer cement (GIC) is widely used in restorative dentistry due to its capability to form a chemical bond with tooth tissue and its biocompatibility. Nevertheless, its limited mechanical strength and antibacterial capabilities hinder its long-term success in dental restora...

Robust recognition of Tamil inscription letters using a hybrid model combining recurrent neural networks, graph neural networks, and attention mechanisms

Background Character recognition in ancient Tamil inscriptions is a difficult process because of the complex nature, overlapping, and varied sizes of the characters. Traditional Optical Character Recognition (OCR) methods cannot perform optimally in such situations, making it imp...

Real-time target tracking in passive wireless sensor networks using sensor fusion and Kalman filtering

This work presents a detailed study on passive wireless sensor network tracking for adaptive estimation and control. Existing models mainly use a fixed Kalman framework for data fusion under linear and time-invariant assumptions. These available approaches show limited efficiency...

A comparative finite element study of bioinspired porous hip implant stems optimized using nTopology-based lattice architectures

One major cause of implant loosening after total hip replacement is the mismatch in stiffness properties between the metallic prostheses and the cortical bones. This paper evaluates the structural effectiveness of four different bioinspired porous structures, specifically Honeyco...

Adaptive neuro-fuzzy inference system-based analysis of Maxwell nanofluid flow over an exponentially expanding surface with radiation and multiple slip conditions

Abstract The present communication explores the Darcy-Forchheimer flow of Maxwell nanofluid through an exponentially expanding surface with motile microorganisms and slip conditions. This precise fluid model is employed in several industrial areas, such as polymer extrusion, ener...

Pilot validation of a piezo‑resistive gnathodynamometer for maximum voluntary bite force measurement in adults: a cross sectional comparative study

Maximum voluntary bite force (MVBF) is a key indicator of masticatory system function, influenced by cranio-mandibular biomechanics, neuromuscular coordination, and dental status. Conventional bite force devices, though widely used, are limited by their bulk and potential discomf...