Instrumentation and Applied Physics (IAP): Recent submissions
Now showing items 181-200 of 217
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Studies On Atmospheric Glow Discharge For Surface Modification Applications
(2010-10-22)The properties of materials, especially of solids, can be attributed mainly to the phenomena occurring at the surface. Surface engineering deals with altering the surface properties of materials to realize useful functionalities ... -
Fiber Bragg Grating Interrogation Systems
(2010-10-21)This thesis work deals with the development of three different categories of interrogation techniques for Fiber Bragg Grating based sensor networks. Such networks are used for structural health monitoring and other ... -
ECR Plasma Deposition Of Carbon - Studies On DLC Coatings And Carbon Nanotubes
(2010-10-13)Recent developments in the field of nano-structured materials for technological as well as scientific prospective are quite interesting. In this context carbon plays a dominant role. Few examples such as carbon nanotubes ... -
Studies On Carbon Nanotubes
(2010-09-21)The unique electronic, mechanical and physical properties led Carbon nanotubes (CNTs) to be potential candidate for field emitter, hydrogen storage, sensors, nano electronic devices, nano electromechanical systems, polymer ... -
Instrumentation For Reverse Iontophoresis And Biosensor Capacitance Measurement
(2010-09-15)Iontophoresis is a method to enhance and regulate the transdermal drug delivery by application of an electric field to the skin. Application of small electric current (µ A) enhances transport of both charged and neutral ... -
Thermal And Electrical Properties Of Silver And Iodine Doped Chalcogenide Glasses
(2010-09-13)Silver containing chalcogenide glasses have been extensively studied during the last few decades; the main interest in these materials being their electrical conductivity which changes by several orders of magnitude upon ... -
Studies On The Development Of Piezoelectric Thin Flm Based Impact Sensor
(2010-07-20)Sensors is one of the major areas of current research. Thin film micro/nano sensors are gaining attention worldwide, as there is necessity of miniaturization. There are varieties of sensors available by utilizing different ... -
Small Angle Sensing/Measurement Using 'Pattern Imaging' Method - Few Investigations
(2010-07-14)The present thesis concerns with a few investigations on sensing/measurement of small angle rotation/tilt using Pattern Imaging Method. The methodology involves looking at the tailored-objects located adjacent to the ... -
Development Of Instrumentation For Electrical Switching Studies And Investigations On Switching And Thermal Behavior Of Certain Glassy Chalcogenides
(2010-07-08)The absence of long-range order in glassy chalcogenides provides the convenience of changing the elemental ratios and hence the properties over a wide range. The interesting properties exhibited by chalcogenide glasses ... -
A New Method To Determine Optimal Time-Delays Between Switching Of Digital VLSI Circuits To Minimize Power Supply Noise
(2010-06-01)Power supply noise, which is the variation in the supply voltage across the on-die supply terminals of VLSI circuits, is a serious performance degrader in digital circuits and mixed analog-digital circuits. In digital VLSI ... -
All-Fiber Sensing Techniques For Structural Health Monitoring And Other Applications
(2010-03-02)In this thesis, we explore the four aspects of fiber Bragg grating sensors: mathematical modeling of Fiber Bragg Grating response/spectral characteristics, fabrication using phase mask, application and interrogation. ... -
Development Of A Tin Oxide Based Thermoelectric Gas Sensor For Volatile Organic Compounds
(2009-09-22)Today there is a great deal of interest in the development of gas sensors for applications like air pollution monitoring, indoor environment control, detection of harmful gases in mines etc. Based on different sensing ... -
Small Angle Measurement Using Optical Caustics From Hollow Cylinders - Few Investingations
(2009-09-15)‘Optical Caustics’ represent some of the most visually striking patterns of the light in nature.They occur when light rays from a source, such as the sun, get refracted, or reflected by curved media so as to bend and alter ... -
Electrical Switching And Thermal Studies On Certain Ternary Telluride Glasses With Silicon Additive And Investigations On Their Suitability For Phase Change Memory Applications
(2009-09-11)The Phase Change Memories (PCM) based on chalcogenide glasses are being considered recently as a possible replacement for conventional Non Volatile Random Access Memories (NVRAM). The main advantages of chalcogenide phase ... -
Study of Subharmonic Oscillations In Resonance Excitation Experiments In Nonlinear Paul Traps
(2009-07-08)This thesis presents the results of studies on the problem of subharmonic oscillations in nonlinear Paul trap mass spectrometry. The objective of this thesis is to determine whether the subharmonic oscillations of ions in ... -
Design And Development Of A Liquid Scintillator Based System For Failed Fuel Detection And Locating System In Nuclear Reactors
(2009-07-02)Failed fuel refers to the breach in the fuel-clad of an irradiated fuel assembly in a nuclear reactor. Neutron detection or gamma detection is commonly used in Failed Fuel Detection and Locating (FFDL) system to monitor ... -
Investigations On Topological Thresholds In Metal Doped Ternary Telluride Glasses
(2009-06-16)The ability to tune the properties over a wide range of values by changing the additives, composition, etc., has made chalcogenide glassy semiconductors, most interesting from both fundamental physics as well as technology ... -
Design, Fabrication And Testing Of A Versatile And Low-Cost Diffuse Optical Tomographic Imaging System
(2009-06-16)This thesis reports the work done towards design and fabrication of a versatile and low cost, frequency domain DOT (Diffuse Optical Tomography) Imager. A design which uses only a single fiber for the source and a single ... -
Denoising And Inpainting Of Images : A Transform Domain Based Approach
(2009-05-25)Many scientific data sets are contaminated by noise, either because of data acquisition process, or because of naturally occurring phenomena. A first step in analyzing such data sets is denoising, i.e., removing additive ... -
Geometry Optimization Of Axially Symmetric Ion Traps
(2009-05-13)This thesis presents numerical optimization of geometries of axially symmetric ion trap mass analyzers. The motivation for this thesis is two fold. First is to demonstrate how the automated scheme can be applied to achieve ...