Now showing items 11-20 of 58
Evaluation of the dose perturbation caused by tungsten shielding in a Fletcher Suit Delclos gynecological applicator during an HDR brachytherapy treatment
Purpose. To study the effect of tungsten shields present in ovoids on the dose delivered to areas representative of bladder and rectum points, during High Dose Rate (HDR) brachytherapy procedures for cervical cancer. Methods ...
Infrared spectroscopic analysis of restorative composite materials surfaces and their saline extracts
Introduction . Tooth-colored resin fillings have become increasingly popular as restorative materials. This increase makes it important to differentiate among the materials for forensic and biological purposes. For the ...
Grid-based and meshless methods for the computation of the curvatures and related local geometric quantities of a three-dimensional surface
Various applications in computer graphics require accurate estimation of local quantities such as the principal curvatures or principal directions. Other local quantities such as the surface energy or chemical potential ...
Imaginary-time formulation of strongly correlated nonequilibrium
Strongly correlated nanostructures and lattices of electrons are studied when these systems reside in a steady-state nonequilibrium. Much of the work done to date has made use of the nonequilibrium real-time Keldysh Green ...
Reactions between phases and surface segregation in a two component mixed electronic ionic conducting ceramic membrane
The work reported in this thesis involves the study of the solid state chemical interactions between Strontium doped Lanthanum Manganate (LSM) and Scandia doped Zirconia (SDZ). Dual phase composite disks (60% SDZ by weight) ...
Enhancement of hole mobility in lead sulfide nanoparticle doped polymer
In recent years there has been increasing interest in the applications of hybrid organic-inorganic materials in electrical devices such as solar cells, photo detectors, field-effect transistors, light-emitting diodes etc. ...
Limitations of the pH sensitive probe seminapthorhodafluor
By incorporating proteinaceous 'drugs', such as cytokines and growth factors, into biodegradable polymers (BP), one can deliver these to sustain and accelerate wound repair. However, as the BP degrades, the local, microscopic ...
Copper(II) facilitated aminofunctionalization of alkenes for the synthesis of nitrogen heterocycles
Several methods for the aminofunctionalization of alkenes have been developed that utilize copper(II) salts in either catalytic or stoichiometric amounts.
Diastereo- and enantioseletive copper(II)-catalyzed intramolecular carboamination of alkenes for the synthesis of benz[f]indoles and related heterocycles
The carboamination of alkenes is a well-studied method toward the synthesis of nitrogen heterocycles. This reaction involves the concurrent formation of C-N and C-C bonds across an olefin. Recent studies involving palladium ...
Enantioselective tandem cyclopropanation/Cope rearrangement of heteroaryldiazoacetates and their applications in natural product synthesis
The first section of this thesis focuses on the use of heteroaryldiazoacetates in the tandem cyclopropanation/Cope rearrangement. This reaction was found to be highly successful with various heteroaryldiazoacetates including ...