Division of Physical and Mathematical Sciences: Recent submissions
Now showing items 1-20 of 1383
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Investigation of Thermal Stability and Functional Dynamics of Nucleic Acid Nanostructures using Molecular Dynamics Simulations
DNA has emerged not only as the carrier of genetic information but also as one of the most studied and most versatile nanoscale materials in modern science. Since Ned Seeman first proposed the concept of DNA nanotechnology ... -
Growth and characterisation of Indium antimonide and its heterosturctures
In conclusion, InSboriented layers have been grown on InSb and GaAs by LPE. While stepcooling yielded good homoepitaxial layers, it was necessary to use the rampcooling technique to grow InSb on GaAs. The narrow rockingcurve ... -
Studies on selected semiorganic and organic nonlinear optical crystals
Good opticalquality LAP and dLAP crystals were grown from aqueous solutions by solvent evaporation and slow cooling. Problems associated with crystal growth, such as microbial growth in the solution, were systematically ... -
Electriacl and theramal studies on metal doped germanium telluride glasses
Cu-Ge-Te Glasses (i) Bulk, meltquenched CuGeTe glasses are found to exhibit a single glass transition and a singlestage crystallization upon heating. (ii) The composition dependence of the glasstransition temperature, ... -
Crystal growth and characterization of some nonlinear optical materials
Single crystals of LAP were grown from aqueous solution under different growth conditions. The undesirable growth of microorganisms was avoided by protecting the surface of the solution by placing a thick layer of nhexane ... -
White dwarf pulsators-a study with the whole earth telescope
We have presented in this thesis the first observational results on the location of the driving region and the processes involved in white dwarf pulsations. We selected one object from each of the three main instability ... -
Experimental investigations on the structure and transport properties of amorphous and nano-crystalline carbon nitride
In this chapter, we summarize our results and present concluding remarks on our investigations. Key findings on amorphous carbon nitride are followed by results on crystalline carbon nitride. Carbon and its allotropes ... -
Investigations on the radioactivity and the geological ages of indian rocks & minerals
Abstract Not Available -
Studies on thermal contact conductance across contacts of metal matrix composites
Thermal contact resistance plays an important role in many mechanical, aerospace, electrical, and electronic systems when heat transfer from or to the equipment is critical. Metal Matrix Composites (MMCs) are of interest ... -
Design, development and performance evaluation of a digital quartz crystal monitor for thin film deposition.
Thinfilm technology has provided a variety of devices with tailormade properties suited to applications in microelectronics, integrated optics, superconductivity, corrosion, lubrication, solar energy, sensors, and lasers. ... -
Particle image velocimetry studies in small aspect ratio elliptic jets
1. Introduction 2. Experiments 2D PIV measurements were carried out in the near flow field of 2:1 (major axis: minor axis) aspect ratio elliptic jets issuing from both nozzle and orifice. The nominal jet exit velocity ... -
Improving the precision of strong interaction at low and high energies
A fundamental goal of elementary particle physics is to understand the structure and behavior of strongly interacting matter in terms of its fundamental constituents and to search for physics beyond the Standard Model (SM). ... -
Huygens Method of Construction of Weakly Nonlinear Wavefronts and Shockfronts with application to Hyperbolic Caustics
This thesis embodies the results of investigations of the effect of nonlinearity on the propagation of weakly nonlinear and arbitrarily curved wavefronts and shockfronts. It is classified into six chapters, of which Chapter ... -
Spectroscopic studies on polymerized and doped fullerenes and pressure induced phase transition in BaTiO3
In conclusion, we have observed pressure induced polymerization in the case of C but not in C . This calls for detailed theoretical analysis, incorporating the changes in electronic structure with the application of ... -
Bulk and thin growth of pure and substitued indium antimonide for infrared detector applications
InSb single crystals were grown by the vertical and horizontal Bridgman techniques. About 81 experimental runs were carried out altogether (for 8 mm, 10 mm and 20 mm diameter InSb crystals). Among them, as many as 47 runs ... -
Investigations of electroporation physics using optically transparent polymer devices and molecular dynamics simulation
New technologies have emerged in the medical field over the last decade to treat problems such as cancer and tumors. Electroporation is one such technique that has been extensively used in electrochemotherapy, drug delivery, ... -
Design and performance testing of a PC-based control system for nuclear waste vitrification
The high computing and informationprocessing power of a General Purpose Digital Computer (GPDC) in the form of a Personal Computer (PC) has become available throughout the world, leading to the emergence of the PC as a ... -
Studies on design parameters and construction of parabolic trough concentrators for an industrial process heat system
Line focus solar concentrating collector systems of the parabolic trough type with single axis tracking are being increasingly used for Industrial Process Heat (IPH) applications such as the production of process steam and ...