etd AT Indian Institute of Science: Recent submissions
Now showing items 2041-2060 of 6964
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Studies on thick-GEM UV Photon Detector
Large area photodetectors with single photon counting ability motivates to develop gaseous photomultiplier (GPM), that combine thin film photocathode with electron multipliers for efficient detection of UV photon. This ... -
Probing charge-density waves and superconductivity in low-dimensional systems
The recent advent of two-dimensional materials has led to the discovery of materials with fascinating phase diagrams. These systems have exciting electronic phases which coexist or compete with each other. Here in this ... -
New NMR Methods with high resolution and sensitivity for rapid data analysis
work is focused on: (i) Development of new fast and sensitivity enhanced NMR methods in solution state and their application to metabolomics and (ii) development of novel NMR methods in solution state for the rapid resonance ... -
Regulation of Lateral Mobility of Amyloid Precursor Protein by an Alzheimer’s Disease Risk Gene: Picalm
Amyloid Precursor Protein (APP) is implicated in several functions in neurons, but the altered processing of APP in synapses holds a key to understanding the onset of the molecular progression of Alzheimer’s Disease (AD). ... -
Taming Electrons in 2D Materials: Influence of Substrates, Defects and Moire Superlattices
Two-dimensional materials have been extensively studied in the last decade owing to the rich physics at reduced dimensions and their applications in electronics and optoelectronics. Controlled modifi cation of electronic ... -
Exploring one and two-channel Kondo effect and investigating dielectric properties in ferrimagentic nanocomposites of LaNiO3 and CoFe2O4
The Kondo effect is a well-known and intensely studied phenomenon in condensed matter physics. After the theoretical prediction of Zawadowski and Noizères about the two-channel Kondo (2CK) effect, several successful attempts ... -
On Media-Based Modulation for Wireless Communications
Traditionally, symbols chosen from complex modulation alphabets such as QAM and PSK are used to convey information bits, and complex fades introduced by the channel are viewed as detrimental effects that cause amplitude ... -
Understanding the structural organization of the carrier translocase machinery in regulating mitochondrial biogenesis and organelle quality control
Mitochondria are essential eukaryotic organelles required for diverse cellular functions including, energy homeostasis, iron-sulfur cluster biogenesis, and signaling. Therefore, the maintenance of organelle quality control ... -
Sculpting colloidal membranes through phase transformations
Shaping macroscopic 2-D thin elastic sheets through differential strains in the system is a widely studied phenomenon applicable in diverse areas such as flexible electronics, origami and tissue growth. In contrast, at the ... -
Nonlinear and Geometric Properties of Accreting Compact Sources Based on Spectral and Timing Analyses
We study the spectro-temporal properties of the black hole X-ray binaries (BHXBs) GRS 1915+105 and IGR J17091-3624 with data from RXTE, Chandra and XMM-Newton. From the analysis result, we propose models of accretion ... -
Diversity from the Gut to Species: Phylogeny, Population genetics and Microbiome of the Antilope cervicapra
Evolutionary relationships between members of the Antilopina taxon have been much debated in recent years. The ‘true antelope’ clade is currently comprised of 4 genera viz., Gazella, Nanger, Eudorcas and the monotypic genus ... -
Adaptive charging techniques for Li-ion battery using Reinforcement Learning
Li-ion batteries have become a promising technology in recent years and are used everywhere from low-end devices like mobile phones to high-end ones like electric vehicles. In most applications, the discharge of a battery ... -
Demand Response Planning in a Transitioning Electricity System
Globally, the electricity systems are undergoing major transitions from robust, carbon intensive, and firm power conventional systems to uncertain, intermittent and variable renewable energy integrated low carbon systems. ... -
Probing effect of disorder in the electrical and optical properties on van der Waals heterostructure
In this thesis, we studied the transport properties of single-layer graphene and single-layer to few-layer MoS2. We also studied the optical properties of MoS2 based single-layer, twisted bilayer devices. The main observations ... -
Tectonic evolution and tin mineralisation of the Karagwe–Ankole Belt, Rwanda
Studies of the tectonic evolution and associated ore genesis through time are fundamental to understanding Earth’s crustal growth, evolution, and related enrichment in metal deposits. The present PhD research work has ... -
Investigating Partners of OsMADS1 Transcription Factor and functions for some associated factors for roles in rice inflorescence and floral development
Title: Investigating Partners of OsMADS1 Transcription Factor and functions for some associated factors for roles in rice inflorescence and floral development The classic ABCDE model for floral organ identity show that ... -
Single-channel studies on human TREK-1 (hTREK-1) channels to intracellular ischemia related factors
TREK-1, a member of the two-pore domain family of potassium channels, majorly contributes to the maintenance of resting membrane potential of a cell and has been reported to respond to ischemic levels of intracellular ... -
Cooling, heating and gas evolution in the circumgalactic medium
The Universe at large scales consists of gravitationally bound dark matter halos. Ordinary gas inside the halos emits and also absorbs the radiation from background sources leaving distinct signatures for multi-wavelength ... -
Theoretical Studies of Skewed Spin Ladders and Polycyclic Aromatic Hydrocarbons
This thesis is an effort to understand electronic structure and optical properties of low-dimensional conjugated molecules such as polyatomic aromatic hydrocarbons and nanoribbons composed of perylene monomers in addition ... -
Stochastic Approximation with Markov Noise: Analysis and applications in reinforcement learning
Stochastic approximation algorithms are sequential non-parametric methods for finding a zero or minimum of a function in the situation where only the noisy observations of the function values are available. Two time-scale ...