etd AT Indian Institute of Science: Recent submissions
Now showing items 1261-1280 of 9462
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Spin-statistics correletions in various noncommutative field theories
Intuitive arguments involving standard quantum?mechanical uncertainty relations suggest that at length scales close to the Planck length, strong gravity effects will limit the spatial as well as temporal resolution to ... -
Thermodynamic properties of p-xylene - chloroethans
The importance of accurate thermodynamic data of pure substances and mixtures in research and industry hardly needs any emphasis. Apart from their utility in process design calculations, such data are useful in theoretical ... -
studies on oxidation of anthracene
Anthraquinone is an important dye intermediate. The demand for anthraquinone in India is likely to go up in the next few years, making its manufacture promising. Among the various methods, vapour phase catalytic oxidation ... -
Studies in dehydrochlorination of 1,1, 2, 2 Tetrachloroethane
Dehydrochlorination of tetrachloroethane is studied both in homogeneous as well as in heterogeneous phases. The feasibility of the reaction has been evaluated from thermodynamic considerations. The reaction is found to ... -
Analysis of breakage and coalescence of drops in agitated liquid-liquid dispersions
Abstract not available -
Thermodynamic properties of toluene chloroethane systems
The thesis embodies experimental data on (i) vapour pressure, (ii) vapour–liquid equilibria, (iii) heats of mixing at 25 and 35°C, and (iv) latent heats of vaporization for the systems toluene and chloroethanes. Vapour–liquid ... -
Studies on dealkylation of alkyl aromatic hydrocarbons Part II- Demithylation of xylene isomers and ethylebezene to benzene
The demand for benzene is increasing. The possibilities of preparing it from substituted benzene by dealkylation are investigated in the present work. From the literature pertaining to dealkylation processes, the vapour?phase ... -
Oxidation of Aromatic hydrocarbons
TITLE: THE OXIDATION OF AROMATIC HYDROCARBONS. The literature on the oxidation of benzene, phenol, p-quinone and maleic anhydride has been reviewed. Various kinetic models have been presented for oxidation of benzene but ... -
Studies in gas-solid catalytic reactions : redox kinetics in pore-diffusion regime
Knowledge about the effect of diffusional intrusion on the kinetics of a gas–solid catalytic reaction-very common in process industries-is essential for a better understanding of these reactions in industrial reactors. The ... -
Heat and mass transfer studies in solid state fermentations
Solid-state fermentation (SSF) processes have long been employed in the production and preservation of a variety of foods, and in the production of enzymes, organic acids, antibiotics and other microbial products. They are ... -
Estimation of thermophysical properties of binary organic solutions- surface tensions
Thermophysical properties present an interesting field of research to understand molecular nature and behaviour. The primary reason is that these properties mirror any change at the molecular level. One such property is ... -
Computational fluid dynamics(CFD): Studies on Centrifugal contactors
Annular centrifugal contactors find application in liquid–liquid extraction processes in various industries such as reprocessing of spent nuclear fuel, hydrometallurgy, petrochemicals, pharmaceuticals, etc. The special ... -
Vapour phase oxidation of p-xylene
The kinetic study on the oxidation of p-xylene has been carried out. The oxidation of p-xylene on the following two catalysts has been studied: (a) tin vanadate (b) ferric molybdate (Boreskov’s composition) Ferric molybdate ... -
Analytical and experimental studies on stratified flows
Stratified flows are the fluid motions caused or influenced by the density differences. The density currents, the intrusion of salt wedge, the gravitational circulation, diffusion and dispersion of pollutants in estuaries ... -
Studies on the irreversible thermal denaturation of Rnase A
“STUDIES ON THE IRREVERSIBLE THERMAL DENATURATION OF RIBONUCLEASE A” SUBMITTED BY GIRISH SAHNI FOR THE Ph.D. DEGREE OF THE INDIAN INSTITUTE OF SCIENCE, BANGALORE–560012, INDIA** Processes whereby proteins and enzymes are ... -
Matabolism of phenylacetic acid by aspergillus niger
The metabolism of phenylacetic acid by Aspergillus niger was studied. The culture filtrates of A. niger grown on phenylacetate for 40 hours exhibited the presence of 2? and 3?hydroxyphenylacetic acids, 3?hydroxybenzyl ... -
Some aspects of the metabolism of mandelic acid by pseudomonas convexa, Ph.D. Thesis
The metabolism of mandelic acid (phenylglycolic acid) has been studied in detail in several bacteria, and it has been shown that the side chain of mandelic acid is first degraded, resulting in the formation of benzoic acid, ...