etd AT Indian Institute of Science: Recent submissions
Now showing items 1481-1500 of 9466
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Physical and mathematical modelling of boron carbide manufacturing process
Boron carbide is produced in a heat?resistance furnace using boric oxide and petroleum coke as the raw materials. In this process, a large current is passed through the graphite rod located at the center of the cylindrical ... -
Corrosion and related electrochemical studies on ziroconium (in nitrate melts, nitrats fluoride melts and aqueous nitrate solutions)
The thesis embodies the results of the investigations on the corrosion of zirconium in nitrate melts. The predicted thermodynamic behaviour of zirconium in 2-component NaNO?-KNO? eutectic melts based on E-pO diagrams ... -
Thermodynamic studies on the systems Ln-Fe-O (Ln = Nd, Sm, Dy)
Ternary oxides in the systems Ln–Fe–O (Ln = Nd, Sm, Dy) have been prepared by the citrate–nitrate route and characterised by X?ray diffraction analysis. The particle sizes of the ternary compounds were estimated to be in ... -
Knowledge-based mining of multi-database for associations
Knowledge Discovery in Databases (KDD) uses knowledge engineering tools and database technology to extract hidden patterns from databases. Data mining is a step in the KDD process that finds useful patterns in the data. ... -
Design and perfomance evaluation of bus access schemes for salan-an experimental local area network
Local Area Networks (LANs) spanning a limited geographic area have emerged of late as a field of wide applicability. One of the prime factors governing the design of a LAN is the Medium Access Control (MAC) scheme which ... -
Combinatorial algorithms for determinant based problems
The thesis started with the early history and development of the theory of determinants. All the important results up to the 1880s were presented through a computing perspective. Pfaffians are closely related to determinants; ... -
Stokes polarimetry and the measurement of vector magnetic fields in solar active regions.
The aim of this thesis has been measurement of Stokes profiles and vector magnetic fields in sunspots using the Kodaikanal Tower/Tunnel Telescope and spectrograph. Although this coelostat telescope had been constructed ... -
Application of finite graph models of context fue languages.
A finite graph model for a context?free language is proposed. The model is called an extended transition system; its nodes encode [pushdown automata state, top stack symbol] pairs and its arcs encode pushdown automaton ... -
Insights into the formulation of PU foam and its mechanical behavior under quasi-static and impact loads
In today’s world, cellular materials find extensive use in many engineering applications including being deployed as energy?absorbing countermeasures for impact safety protection. Polymeric foam is a popular category of ... -
Studies on simple and restricted orifice surgre tanks
This thesis deals with certain basic experimental studies conducted on the phenomenon of mass oscillations in restricted orifice surge tanks. Simple surge tanks were also studied, they being considered an extreme case of ... -
Some characteristics of branch channel flow
This thesis comprises three parts. The first part contains literature survey, the second part the theoretical analysis, experimental verification and results, and the third part the development of a precision point gauge. ... -
Cavitation and cavitation damage
This thesis deals with the study of certain aspects of cavitation damage. In the first part of the thesis, a critical survey of the existing literature has been made, and various theories of cavitation damage have been ... -
Some Studies on branch channel Flow
In the present investigation, methods are suggested to predict the flow into a branch taking off from a main channel, maintaining subcritical flow in the main and supercritical in the branch channel. The methods are based ... -
Ecologically sound integrated regional energy planning
The central theme of the integrated energy plan would be to prepare an area-based decentralised energy plan to meet energy needs for subsistence and development of alternate energy sources at least cost to the economy and ... -
Simulative performance analysis of ATM switching fabrics
Asynchronous Transfer Mode (ATM) has emerged as the major technology paradigm for the implementation of the Broadband Integrated Digital Services Network (B?ISDN). In ATM, all forms of information such as voice, video and ... -
Oxidation of Sulfur Dioxide with Copper (II) catalyst in aqueous solution and on poly-4-vinylpyridine resin
Air pollution by sulfur dioxide is of great concern due to its harmful effects on environment, human beings, fauna and flora. Thermal power plants and industries employing combustion of carbonaceous fuels are the major ... -
Studies on fluidised-bed electrode
Flowing electrolyte The mass transfer coefficient k between the flowing electrolyte and the outer wall of an annulus in streamline flow varies as … The mass?transfer data obtained in streamline flow in this investigation ... -
Oxidation of ortho-xylene
The thesis embodies the work on the vapour?phase oxidation of o-xylene over sintered and compacted vanadium pentoxide catalyst in a fixed?bed reactor (FBR) and a continuous stirred?tank catalytic reactor (CSTCR). A survey ... -
Chemical process deveoopment for sodium dithionite- a kinetic study of sodium formate process
(1) The kinetics of formation of sodium dithionite has been investigated in homogeneous aqueous phase. The rate of hydrolysis of sodium formate has been found to be the rate?controlling step. The following rate equation ...