Browsing Division of Physical and Mathematical Sciences by thesis submitted date"2006"
Now showing items 1-20 of 26
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Crystal Structures Of Native And Xylosaccharides-Bound Alkali Thermostable Xylanase From An Alkalophilic Bacillus SP. NG-27: Structural Insights Into Alkalophilicity. Analysis Of C-H...O Hydrogen Bonds In Helices Of Globular Proteins
(2007-11-21)Xylanases are xylan-degrading enzymes, belong to glycosyl hydrolases (GH). Xylanases from the two major families 10 (GH10) and 11 (GH11) catalyze the hydrolysis of internal β-, bonds of xylan backbone. Xylan is the second ... -
Development Of Point-Contact Surface Acoustic Wave Based Sensor System
(Indian Institute of Science, 2007-05-16)Surface Acoustic Waves (SAW) fall under a special category of elastic waves that need a material medium to propagate. The energy of these waves is confined to a limited depth below the surface over which they propagate, ... -
Gas Sensors - Micro-Heater Designs And Studies On Sensor Film Deposition
(2009-03-03)Current gas sensor technology, although meeting the minimum requirements in many instances, suffers for a number of limitations. Hence, there is currently a considerable volume of research being undertaken at many ... -
Growth And Characterization Of Technologically Important Nonlinear Optical Crystals: Cesium Lithium Borate And Potassium Di-Deuterium Phosphate
(2008-09-30)Present day advanced technologies heavily rely on one particular class of matter, i.e. the crystals. It is the periodic nature of the atoms and the properties arising due to the periodicity in crystals that is exploited ... -
Light Scattering Investigations Near The Critical Point In Some Solvophobic Systems And The Design And Analysis Of A Microkelvin Thermostat For Critical Phenomena Studies
(Indian Institute of Science, 2007-05-21)This thesis reports light-scattering experiments and visual investigations close to the critical point, in the solvophobic systems, 3-methylpyridine (3MP) + heavy water (D2O) + sodium bromide (NaBr) and methyl ethyl ketone ... -
Multiband Modelling and Radio Observations of Gamma Ray Burst Afterglows
The widely popular and successful standard fireball model for Gamma Ray Burst (GRB) afterglows is based on ultra-relativistic external shocks sweeping up matter around the explosion site to accelerate electrons up to GOV ... -
Nature Of Criticality, Structuring, And Phase Behavior Of Complex Fluids
(2009-03-04)This thesis is mainly concerned with some important properties of complex fluids, and how these properties are influenced by structures in the nano/mesoscopic scale. Short-range assembly of the constituent molecules results ... -
Nonlinear Dynamics Of Resonances In, And Ejection From Paul Traps
(2008-09-26)This thesis presents results of investigations that have been carried out to understand dynamics in nonlinear Paul trap mass spectrometers. Of the three problems that have been taken up for study in this thesis, the first ... -
De Novo Design Of Protein Secondary And Super Secondary Structural Elements: Investigation Of Interaction Patterns From The Crystal Structure Analysis Of Oligopeptides Containing α,β-Dehydrophenylalanine Crystal Structure Analysis Of Double Mutant M37L, P40S Thioredoxin From E.Coli
(2007-12-06)ΔPhe an analogue of a coded amino acid phenylalanine (Phe) residue but with double bond between Cα and Cβ atoms, is one of the well studied residue among all the dehydro amino acids, as a conformation constraining amino ... -
On The Peak-To-Average-Power-Ratio Of Affine Linear Codes
(2008-01-25)Employing an error control code is one of the techniques to reduce the Peak-to-Average Power Ratio (PAPR) in an Orthogonal Frequency Division Multiplexing system; a well known class of such codes being the cosets of ... -
Orbit Model Analysis And Dynamic Filter Compensation For Onboard Autonomy
(2009-03-04)Orbit of a spacecraft in three dimensional Inertial Reference Frame is in general represented by a standard set of six parameters like Keplerian Orbital Elements namely semimajor axis, eccentricity, inclination, ... -
Pressure Sensor Development Using Hard Anodized Aluminum Diaphragm And Thin Film Strain Gauges
(2008-01-16)The sensor is a device that converts a form of energy concerning which the information is sought, called the measurand, to a form (electrical) in which it can be usefully processed or interpreted. Sensors rely on physical ... -
Quantum Information Processing By NMR : Relaxation Of Pseudo Pure States, Geometric Phases And Algorithms
(2009-04-13)This thesis focuses on two aspects of Quantum Information Processing (QIP) and contains experimental implementation by Nuclear Magnetic Resonance (NMR) spectroscopy. The two aspects are: (i) development of novel methodologies ... -
A Radio Study Of Gas Loss Processes In Nearby Galaxies
(2008-10-17)The work in this thesis involves detailed multi-frequency radio continuum (from 325 MHz to 15 GHz) and Hi spectroscopic studies of a few represent tative nearby galaxies which are experiencing gas-loss from their disks ... -
Resistance Fluctuations And Instability In Metal Nanowires
(2009-03-13)The principal aim of this thesis is to study the electrical transport properties of metal nanowires. Specifically, we have focussed on investigating the resistance fluctuations of Ag and Cu nanowires of diameters ranging ... -
Semi Conducting Metal Oxide Gas Sensors: Development And Related Instrumentation
(Indian Institute of Science, 2007-05-21)A sensor is a technological device or biological organ that detects, or senses, a signal or physical condition and chemical compounds. Technological developments in the recent decades have brought along with it several ... -
Soft Matter : Routes To Rheochaos, Anomalous Diffusion And Mesh Phases
(2008-10-06)Soft condensed matter (SCM) systems are ubiquitous in nature. SCM systems contain mesoscopic structures in the size range 10 nm to 1 am that are held together by weak entropic forces. These materials are therefore easily ... -
Studies Of Phosphorus-Functionalized Calix[4]arenes And Their Palladium Complexes
(2009-03-31)Calixarenes, particularly calix[4]arenes, continue to attract considerable attention in synthetic chemistry, notably as platforms for designing sophisticated molecular cages and claw-like ligands. Incorporation of phosphorus ... -
Studies On Growth And Physical Properties Of Certain Nonlinear Optical And Ferroelectric Crystals
(2007-10-24)Nonlinear optics and ferroelectrics have been recognized for several decades as promising fields with important applications in the area of opto-electronics, photonics, memory devices, etc. High performance electro-optical ... -
Studies On The Effect Of Closed Loop Controls On The Stability Of High Repetition Rate Copper Vapour Laser Pumped Dye Laser
(2009-04-01)Copper vapour laser (CVL) pumped high repetition rate narrow bandwidth dye laser is an important source of tunable radiation. It finds numerous applications in spectroscopic investigations and selective material processing ...