etd AT Indian Institute of Science: Recent submissions
Now showing items 361-380 of 7804
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synthesis of some naturally occurring sesquiterpenes
Syntheses of Some Naturally Occurring Sesquiterpenes” consists of six chapters. Chapter 1 describes the first total syntheses of marmelerin (10) (isolated from Croton sonderianus Muell. Arg.), its positional isomer 12, and ... -
Acid catalysed cyclisation of steroidal seco-diones-total synthesis of racemic copacamphor & their Ylangocamphor & their G-homologues..
The thesis entitled “Acid-Catalysed Cyclisation of Steroidal Seco-Diones – Total Synthesis of Racemic Copacamphor and Ylangocamphor and Their C?-Homologues” consists of three chapters. The bicyclo[3.2.1]octane ring system ... -
Synthesis and reactions of oxygen and nitrogen heterocycles..
The thesis is entitled “Synthesis and Reactions of Oxygen and Nitrogen Heterocycles” and is presented in five chapters. Chapter I deals with the synthesis of spironaphthalenones (1b) and (1c). 4-Methyl-2-naphthol was ... -
Studies on enzyme models.
The thesis entitled "Studies on Enzyme Models" is divided into three chapters. The first chapter deals with a general introduction on the mechanism of enzyme action and study of enzyme models mimicking some enzymes. The ... -
studies in opium alkaloids
The thesis entitled "STUDIES IN OPIUM ALKALOIDS: (i) SYNTHETIC UTILITY OF AMINE QUATERNIZATION (ii) MICROBIAL TRANSFORMATIONS OF MORPHINE" consists of four chapters. CHAPTER 1: CONVENIENT METHOD FOR REPLACEMENT OF TERTIARY ... -
Synthetic studies in natural products
The thesis entitled "Synthetic Studies in Natural Products (Terpenes & Lignans)" is divided into three parts consisting of nine chapters. Chapter 1 gives a review of the chemistry of aromatic hemiterpenoids of 2,2-dimethylchromene ... -
Studies on synthetic drugs : Investigations on synthetic estrogens
PART I Section A After briefly reviewing the work on synthetic estrogens, the various methods for the synthesis of 2-methyl-2-carbomethoxy-5-(p-methoxyphenyl)-cyclohexanone are detailed. This ketone has been synthesized ... -
Wiener-hopf technique and allied methods in a class of scattering problems
This thesis is devoted to the study of a class of boundary value problems arising in the scattering of electromagnetic and acoustic waves by means of the Wiener–Hopf technique and related methods. The contents are organized ... -
Efficient Signal and Modulation Classification for High Mobility Wireless Communication System
The escalating demand for high-mobility applications, such as vehicle-to-everything (V2X) networks, high-speed rail, and internet of things (IoT), drives the evolution of sixth-generation (6G) wireless communication ... -
Adsorption of gases on catalysts of technical importance
Studies have been carried out in their entirety concerning the adsorption of carbon monoxide on cobalt catalysts containing Co 100, Thoria 10, and Kieselguhr 200#. Progression of small aggregate cobalt oxide on the catalyst ... -
Studies on catalytic of technical importance carbon monoxide at high pressures
A comprehensive study has been made on the pressure-vapour phase synthesis of (i) Acetic acid by the reaction of methyl alcohol and carbon monoxide, and (ii) Propionic acid by the reaction of ethyl alcohol and carbon ... -
Studies in the catalytic conversion of ethanol to butadeine
Ethanol obtained from molasses (a by-product of the Indian sugar industry) can be utilized for the production of butadiene. Butadiene can readily be polymerized to yield synthetic rubber, which is of great significance ... -
Local area teacher groups : a new paradigm for human resource development in higher education
We would like to conclude the thesis by rigorously distinguishing among what we consider three major models of teacher improvement that have been or can be envisaged: training, development, and growth. As a transitive verb, ... -
Controversy as a explanatory category in scientific metatheory: an argument & an illustration
The focus of our analysis so far has been to demonstrate that the history of the science of science has been marked by a gradual broadening of its concerns. Initially, the exclusive attention of positivism to the logic ... -
Application of programming languages for processing natural languages with special reference to english and tamil
The program development has led to the following applications: i) Linguists working on various aspects of language, and ii) computer users who would like to use one of their own languages for linguistic data processing. Among ... -
Contrastive linguistic analysis of English, Russian and Telugu with special and restricted reference to the field of algebra
The present work is an attempt at studying mathematical terms and concepts in English, Russian, and Telugu, with special reference to the field of degree-level Algebra, from a contrastive linguistic perspective. The purpose ... -
Regulation of industrial wages and its significance to wage structures
The Problem of Wage Detennination - State Regulation of Wages - lessons of Experience - Conceptual Background to Wage Regulation in India - Wage Regulation through the System of Compxilsory Arbitration - Supplementary Wages ...