[Abstract is restricted for 01 Year, due to IPR related issue]

[Abstract is restricted for 01 Year, due to IPR related issue]

Satyajit Ray (1921-1992) is one of India’s greatest international filmmakers of the twentieth century. His debut film Pather Panchali (Song of the Little Road, 1955) ushered in a colossal shift in India’s otherwise conventionalist style of filmmaking. Ray enjoyed a prolific career spanning nearly four decades, directing several feature films, documentaries, and short films. His works explore a wide gamut of themes, ranging from the depiction of rural life in colonial Bengal in Pather Panchali...

Perovskites are a diverse class of materials that have captured the attention of researchers for a variety of reasons, from advancing our fundamental understanding of solid-state physics to driving innovations in materials engineering for technological applications. Over the past decade, significant progress has been made in the study of Pb-based halide perovskites and organic-inorganic hybrid perovskites, particularly due to their potential for photovoltaic applications. While these material...

Calculating potential energy using density functional theory (DFT) is computationally very expensive. The complexity escalates significantly when determining the first-order derivative of energy with respect to cartesian coordinates and the second-order derivatives of the energy with respect to the external electric field, which is essential for predicting forces and polarizability in metallic nanoclusters. Since force calculations are essential for running molecular simulations, such as mo...

This thesis studies the scripting of celebrity personas in the autobiographical writings of 20th-century Indian actresses by focusing on their identities as professionals. The hypothesis posits that in their autobiographies, 20th-century actresses craft their celebrity personas through self-fashioning, guided by their professional expertise, aimed at impression management1. The work proves this hypothesis through close reading and textual analysis of three key texts chosen as representative c...

[Abstract is restricted for 01 Year, due to IPR related issue]

Supramolecular chemistry forms the foundation of self-assembly, where the structural motifs of individual molecules encode instructions for assembling into larger entities. Molecular self-assembly is the spontaneous organization of molecules into ordered hierarchical structures directed by noncovalent interactions such as hydrogen bonding, π-π stacking, electrostatic interactions, Van-der-Waal forces, and hydrophobic interactions etc. Self-assembly is a widespread phenomenon in nature, where ...

Support vector machines (SVMs), renowned for their robust mathematical and statistical underpinnings, offer optimal classification solutions through the construction of a single hyperplane that maximizes the margin between two classes. Despite their elegance, SVMs face a significant limitation: high computational complexity. This challenge led to the development of the twin support vector machine (TWSVM), a model that is approximately four times faster and employs two non-parallel hyperplanes...

Saddle point problems (SPPs) have gained significant attention due to their diverse applications in computational science and engineering domains. This underscores the need for their efficient and robust solution methods. However, round-off and truncation errors in existing numerical approaches restrict solutions to approximations, raising critical concerns about their accuracy, sensitivity and reliability. To overcome these challenges, this thesis introduces preconditioned iterative methods ...

Climate change poses significant challenges to marginalised communities, particularly in regions with highly vulnerable populations like rural and tribal communities. These communities, highly dependent on natural resources, are disproportionately affected due to their reliance on agriculture, water resources, and traditional practices. Climate change exacerbates existing problems, such as poverty, illiteracy, poor facilities essential services, with marginalised groups facing the burden of i...

Gas sensors have become integral to modern technology, finding applications across various fields such as environmental monitoring, industrial safety, medical diagnostics, and even household appliances. These sensors play a vital role in detecting harmful gases, ensuring human safety, and enhancing the quality of life by monitoring air quality and pollution levels. The growing concerns around climate change, urbanization, and industrial emissions have further driven the demand for reliable an...

The advancement of efficient materials in the detection of toxic gases and volatile organic compounds (VOCs) is crucial for both environmental protection and public health. The sensing materials could be useful in monitoring air quality, managing industrial processes, ensuring food safety, and facilitating the early diagnosis of some diseases. In this context, organic-inorganic frameworks, comprising metal nodes (ions or clusters) and organic linkers, have emerged as strong candidates for hig...