etd AT Indian Institute of Science: Recent submissions
Now showing items 41-60 of 9462
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Structure reactivity correlations in organic solid state chemistry photo chemical hydrogen abstraction
The thesis entitled "Structure-Reactivity Correlations in Organic Solid State Chemistry: Photochemical Hydrogen Abstraction" has been divided into two parts. Part I deals with the Xray analyses of four aromatic nitro ... -
Transformation of progesterone by fungal systems : studies on the 11 -hydroxy;ase system from aspergillus ochraceus
Transformation of Progesterone by Fungal Systems: Studies on the 11 Hydroxylase System from Aspergillus ochraceus.” Microbial hydroxylations of steroids have gained industrial importance since these reactions are commonly ... -
Assesment of Quality of Udergraduate Engineering Programmes in India
There has been a steep increase in the growth of technical institutions in India over the last two decades. This unprecedented expansion has led to several challenges regarding the quality of technical education. To ensure ... -
Investigations into the sythesis, structural, dielectric and optical properties of multifunctional M2NaNb5O15 (M=Ba,Sr) nanocrystal composites
Transparent 2BaO–0.5 Na₂O–2.5 Nb₂O₅–4.5 B₂O₃ (BNNB) glass system was fabricated and characterized for their structural and various physical properties. These glasses on controlled heat treatment at appropriate temperatures ... -
Regionalization of arsenic release mechanics in the Bengal basin using fuzzy clustering approach
India is predominantly an agro-oriented country where water has always played a vital role. In the Ganges delta, which covers nearly one-third of India’s total area, surface water was the primary source for irrigation and ... -
Multifunctional transparent glass nano/ microcomposites
Borate-based glass nano/microcomposites comprising members of the Aurivillius family of ferroelectric oxides (Bi VO . , SrBi Nb O ) along with LiNbO have been successfully fabricated. The crystallite size of the active ... -
MOCVD, optical, and electrical properties of CuCrO2 : a novel transparent and p-type conducting oxide with delafossite structure
Deposition and Optoelectronic Properties of CuCrO Thin Films by MOCVD Abstract and Synopsis Introduction This thesis focuses on the deposition of phase-pure thin films of the delafossite-type oxide CuCrO using Metal-Organic ... -
Multifunctional glass nanocomposites comprising aurivillius family of layered ferroelectric oxides
Structural, Dielectric, and Optical Properties of Lithium Tetraborate and Lithium Borate-Bismuth Tungstate Glass Nanocomposites Abstract and Synopsis Introduction Lithium tetraborate (LBO) glasses were fabricated ... -
Evolution and characterization of ferroelectric LiTaO3 phase in LiBO2-Ta2O5 glass system
Electrical Transport and Dielectric Properties of LiBO -Ta O Glasses Abstract and Synopsis LiBO glass was characterized for its electrical transport properties. Activation energies were calculated based on different ... -
Current-limiting and voltage-limiting properties of ceramic based on n-BaTiO3 solid solutions
Abstract Not Available -
Studies angiospermic root parasite santalum album and its experimental host dolichos lablab
While most of the plants are autotrophic and are the main sustenance of life on this planet, a few plants have acquired the parasitic habit and thrive on other plants. The extent of this dependence varies, and so also the ... -
Studies on the metabolism of ethionamide, a second line antitubercular drug
Ethionamide (2-ethyl, 4-thioisonicotinamido) is an active tuberculostatic second-line drug, which plays an important role in the treatment of pulmonary tuberculosis resistant to one or more of the classical drugs. The drug ... -
Studies on experimental cancer immunosuppressive activity and mechanisms of action of mithramycin
As a first step in evaluating the chemotherapeutic efficacy of mithramycin, an antitumor antibiotic, and correlating its toxic, antitumor, and immunosuppressive properties, the following studies were carried out: The ... -
Some myxobacteria and their activities
Among the fruiting forms, Myxococcus species were more common in soils. They were also comparatively easy to isolate and cultivate. i 20 : Therefore, it was decided to carry out further work on these species. As mentioned ... -
Studies on areca catechulinn with special ref to ganooerma lucidum : a fungal pathogen of area palm
The fungus Ganoderma lucidum is one of the common pathogens of a number of tropical palms such as coconut, arecanut etc. Although the pathogenicity of the fungus on a wide range of hosts has been recorded, there are ... -
Astrochemistry and combustion studies with shock waves
Shockwaves and polycyclic aromatic hydrocarbons (PAHs) are ubiquitous in the interstellar medium (ISM) and on Earth. Combustion chemistry provides the fundamental reaction routes and mechanisms for PAH formation. ... -
Optimising Management of Energy, Traffic and Sensor Data in Urban Aerial Systems
Urban Air Mobility (UAM) presents a promising solution to alleviate ground congestion by integrating Unmanned Aerial Vehicles (UAVs) and Passenger Aerial Vehicles (PAVs) into urban transportation networks. However, the ... -
Studies on fatigue corrosion and corrosion fatigue of ductile iron.
Ductile iron offers the combined advantages of good castability with high strength and toughness, and during the past few years has become one of the most widely used engineering materials. The failure of a component of ...