https://dspace.iiti.ac.in/handle/123456789/1 2026-09-21T15:42:09Z https://dspace.iiti.ac.in/handle/123456789/19250 Title: Fabrication of multifunctional electrochromic smart window [RESTRICTED THESIS-01 Year] Authors: Boyat, Jatin Abstract: [Abstract is restricted for 01 Year, due to IPR related issue] 2026-05-22T00:00:00Z https://dspace.iiti.ac.in/handle/123456789/19249 Title: Production of industrial lipase using aspergillus niger via solid-state fermentation Authors: Kalbande, Abhishek Dnyaneshwar Abstract: Lipases (triacylglycerol acyl hydrolases, EC 3.1.1.3) are industrially significant enzymes that catalyze the hydrolysis and synthesis of esters. The present study investigates Acidic lipase production by Aspergillus niger using solid-state fermentation (SSF), employing agro-industrial residues as substrates to develop a cost-effective and sustainable process. Key process parameters, including substrate type [e.g., groundnut oil cake, Mustard deoiled cake, Sesame deoiled cake, Coconut deoiled cake, Wheat bran], with moisture content 15%, pH 5, incubation temperature 32°C, and incubation period 5 days, was carried out to maximize enzyme yield. Under conditions, maximum lipase activity of 0.09 U/g of crude lipase was achieved. Enzyme extraction was performed using e.g., 1% NaCl buffer, followed by centrifugation and partial purification. Lipase activity was determined using the p-nitrophenyl palmitate (pNPP) assay, and enzyme units were expressed as U/g of dry substrate. The results demonstrate that A. niger is an efficient lipase producer under SSF conditions, with significant yield enhancement upon process optimization. The produced enzyme exhibited potential applicability in industrial sectors such as biodiesel production, detergents, and food processing. This study highlights the viability of SSF as an economical and eco-friendly approach for large-scale lipase production. 2026-05-25T00:00:00Z https://dspace.iiti.ac.in/handle/123456789/19248 Title: Nanoparticles and heterojunction for energy storage [RESTRICTED THESIS-05 Years] Authors: Yadav, Himanshu Abstract: [Abstract is restricted for 05 Years, due to IPR related issue] 2026-05-25T00:00:00Z https://dspace.iiti.ac.in/handle/123456789/19247 Title: Adaptive higher-order synchronization in kuramoto systems Authors: Gadariya, Gunjan Abstract: Synchronization in systems of interacting oscillators has been widely studied in nonlinear dynamics because of its relevance to many natural and engineered processes. The Kuramoto model provides a simple mathematical framework for analyzing how collective synchronization emerges in large oscillator populations. While the traditional Kuramoto model considers only pairwise interactions, many realistic systems involve interactions among multiple units simultaneously along with adaptive feedback mechanisms. This thesis investigates synchronization behavior in adaptive higher order Kuramoto oscillator systems containing both pairwise and triadic interactions. The main objective is to understand how adaptive higher order coupling affects the transition from incoherence to synchronization. Analytical and numerical techniques are used to study the collective dynamics of the system. The continuum limit formulation together with the Ott–Antonsen reduction method is employed to derive low-dimensional equations for the synchronization order parameter. Stability analysis and bifurcation analysis are performed to identify different synchronization states and their transition mechanisms. 2026-05-22T00:00:00Z