Division of Electrical, Electronics, and Computer Science (EECS): Recent submissions
Now showing items 21-40 of 1618
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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 ... -
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 ... -
Space- Time block codes with low maximum likelihood decoding complexity and large coding gain
Space-time block coding has been an extensively researched technique to combat multipath fading in multiple-input, multiple-output (MIMO) systems when the channel-state information is available at the receiver but not at ... -
Theoretical study of surface wave characteristics of a circular cyclindrical conductor coated with 2 graded dielectric layers embeoded in isotropic & anisotropic media
The study investigates a cylindrical conductor coated with two dielectric layers, both having radially varying dielectric constants, and the external medium being lossless, either: (a) Isotropic, or (b) Anisotropic The ... -
Non linear vibrations of stretched strings
The viscosity of pure Freon-12 and Freon-22 vapours and their mixtures has been determined by an oscillating disc viscometer at room temperature and pressure. The results agree well with the published data for the pure ... -
Measurements of the ionsation current Growth and the ratio of Diffusion coefficient to mobility for electronics in feebly Attaching gases
For a proper understanding of the mechanism of breakdown in gases, it is essential to have knowledge of the swarm coefficients, namely, the sparking potentials (V?), Townsend's primary (?/N) and secondary (?) ionization ... -
On calculation of corona and breakdown voltages of gaseous insulation with special reference to elecrro-negetive gases and their mixtures
In the design of any insulation system, mechanical, electrical, thermal, and economic considerations are generally of prime importance, and many factors contribute to the type of insulation used in a particular system. In ... -
Gaseous breakdown below paschen minimum in ExB fields
Some investigations about the electric discharge in a coaxial geometry electrode are explained in the transition range, namely, Townsend–Penning discharge for the dry air. The existing theory of 0.05 to 0.3 Torr is extended ... -
Rise and delay time of a vaccum gap triggerd by an exploding wire
Detailed investigations on the rise time (t?) and delay time of a vacuum gap employing an entirely new type of trigger mode using an exploding wire have been reported in this thesis for the first time. A large quantity of ... -
Concurrency control algorithms for database systems exploiting the semantics of read-only transactions.
This thesis proposes new locking-based concurrency control algorithms for both centralized and distributed databases. The concurrency control algorithms proposed exploit the semantics of read-only transactions to improve ... -
Modelling program dynamics : A study on locality of reference
Locality of reference is a phenomenon exhibited by programs and computer systems in general, and refers to the tendency to localize operations to a small subset of the available resources. In the past, this phenomenon has ... -
Pattern recognition via Fuzzy set methods
The main objective of this thesis is the development of a methodology based on fuzzy set theory for several practical pattern recognition problems. Pattern recognition (PR) encompasses a range of problems from feature ... -
Algorithms and characterizations for subclasses of planar perfect graphs
In this thesis, we consider two major subclasses of planar perfect graphs. We exploit certain decomposability and ordering properties to develop new characterizations and efficient algorithms. We study the Hamiltonian cycle ... -
Design of electronic exchanges through decomposition
Decomposition-Based Approaches for Clearing Electronic Exchanges Electronic marketplaces have emerged in recent times as the backbone of important e-commerce and e-business applications to create efficient markets for ...