Browsing Division of Physical and Mathematical Sciences by Title
Now showing items 843-862 of 1368
-
Planar Hall Effect : Detection of Ultra Low Magnetic Fields and a Study of Stochasticity in Magnetization Reversal
(2018-08-09)In the present thesis, we have explored multiple aspects concerning the stochasticity of magnetic domain wall motion during magnetization reversal, all of which originated from our initial study of magnetic field sensing ... -
Planar tunneling in twisted moire heterostructures
Quantum tunneling is a phenomenon that has excited physicists for many decades. With the ability to exfoliate two-dimensional (2D) materials from the bulk, including graphene, hexagonal boron nitride (hBN), and transition ... -
A Platform for Handheld Ultrafast PCR
The Polymerase Chain Reaction (PCR) is one of the most sensitive and specific diagnostic tools available today. Yet, it stands out of reach for many vulnerable populations because commercial solutions are expensive, bulky, ... -
Platform Technologies for In vitro Point-of- Care Diagnostics
In vitro diagnostic (IVD) tests are critical for making informed clinical decisions. These tests are performed outside the body using specimens such as blood, sputum, saliva, and urine. IVD tests are usually performed ... -
Point-of-Care High-throughput Optofluidic Microscope for Quantitative Imaging Cytometry
(2018-03-15)Biological research and Clinical Diagnostics heavily rely on Optical Microscopy for analyzing properties of cells. The experimental protocol for con-ducting a microscopy based diagnostic test consists of several manual ... -
Point-of-need analyte detection using dsDNA-templated fluorescent copper nanoparticles
The detection of various types of pollutants, toxins, and adulterants that are detrimental to the environment and human health is essential for monitoring air, water, soil, and food quality. Technologies that enable the ... -
Polarized Light Based Photoacoustics for Deep-Tissue Chiral Biomolecular Sensing
Sensing methodologies are indispensable for detecting and quantifying physical, chemical, and biological parameters with precision, especially for biomedical applications. These techniques enable early disease detection, ... -
Polarized Line Formation In Turbulent And Scattering Media
(2010-10-13)This thesis is devoted to improve our knowledge on the theory of polarized line formation in a magneto-turbulent medium, and in a scattering dominated magnetized medium, where partial redistribution (PRD) effects become ... -
Poly-Vinylidene Fluoride Based Vibration Spectrum Sensors and Energy Harvestors
(2017-12-07)Mechanical vibrations in large structures such as buildings, bridges, dams and critical frequencies in large machinery generally have low frequencies (100Hz-1000Hz). To monitor large areas of such structures we need huge ... -
Polymer Assisted Dispersion of Carbon Nanotubes (CNTs) and Structure, Electronic Properties of CNT - Polymer Composite
(2018-05-21)Carbon nanotubes possess various unique and interesting properties. They have very high thermal and electrical conductivities, high stiffness, mechanical strength, and optical properties. Due to these properties, CNTs are ... -
Polyvinylidene Fluoride Nasal Sensor : Design, Development and Its Biomedical Applications
(2018-04-16)The growth of sensors and sensing technologies have made significant impact in our day-to-day life. The five principle sensory organs of our body should perform effectively, so that we can lead a good healthy life. Apart ... -
Positivity preservers forbidden to operate on diagonal blocks
The question of which functions acting entrywise preserve positive semidefiniteness has a long history, beginning with the Schur product theorem [Crelle 1911], which implies that absolutely monotonic functions (i.e., ... -
Positivity properties of the deformed Hermitian-Yang--Mills and related equations
In the first part of the talk, we briefly introduce the deformed Hermitian-Yang-Mills (dHYM) equation and discuss a result regarding the solvability of the twisted dHYM equation on compact Kähler three-folds with slightly ... -
A Posteriori Error Analysis of Discontinuous Galerkin Methods for Elliptic Variational Inequalities
(2018-02-15)The main emphasis of this thesis is to study a posteriori error analysis of discontinuous Galerkin (DG) methods for the elliptic variational inequalities. The DG methods have become very pop-ular in the last two decades ... -
Precise Frequency Measurements Of Atomic Transitions
(2011-08-02) -
Precision Measurements of the Radio Background at Long Wavelengths
(2018-05-09)The study of continuum sky background spectrum at low radio frequencies has achieved specific importance in present day observational cosmology . At these low frequencies the sky continuum is contributed by the extragalactic ... -
A Preliminary Investigation Of The Role Of Magnetic Fields In Axially Symmetric rf Ion Traps
(2013-07-16)Axially symmetric rf ion traps consists of a mass analyser having three electrodes, one of which is a central ring electrode and the other two are endcap electrodes. In the ideal Paul trap mass spectrometer, the electrodes ... -
A Preliminary Study Of Fields In Split-Electrode Ion Traps
(2014-08-20)Ion traps used in mass spectrometers are of two classes. One class consists of traps having three electrode geometries which have rotational symmetry about central axis. They are called axially symmetric ion traps. Paul ...