Yeshwantrao Chavan College of Engineering

About: Yeshwantrao Chavan College of Engineering is a based out in . It is known for research contribution in the topics: Inverter & Microstrip antenna. The organization has 632 authors who have published 586 publications receiving 4037 citations.

ACSU Architecture with High Clock Speed for Viterbi Decoder Using T-Algorithm

Abstract: In this paper, we propose an efficient architecture based on pre-computation for Viterbi decoders incorporating T-algorithm. Through optimization at both algorithm level and architecture level, the new architecture greatly shortens the long critical path introduced by the conventional T-algorithm. The design example provided in this work demonstrates more than twice improvement in clock speed with negligible computation overhead while maintaining decoding performance.

Design of Common Subexpression Elimination Algorithm for Cyclotomic Fast Fourier Transform Over GF (23)

Abstract: The frequency transformation methods like fast fourier transform algorithms can be competently used in realization of discrete fourier transforms over Galois field, which have broad applications in network security and digital communication in error correcting codes. The cyclotomic fast fourier transform (CFFT) is a type of fast fourier transform algorithm over finite fields This method utilizes the benefit of cyclic decomposition. The cyclotomic breakdown of input data is used to reduce the number of operations which can be equally exploited to get a set by set treatment of the input sequence. Common subexpression elimination (CSE) is an useful optimization process to solve the multiple constant multiplication problems. In this paper, common subexpression elimination algorithm for cyclotomic fast fourier transform over fixed field 23 is designed. Using CSE algorithm, we reduce the additive complexities of cyclotomic fast fourier transform. The design of CSE is to spot regular patterns that are present in expressions more than once and replace them with a single variable. Using above method every regular pattern calculates only once, thus minimizing the area of CFFT architecture required in VLSI implementation.

ACSU Architecture with High Clock Speed for Viterbi Decoder Using T-Algorithm

Abstract: In this paper, we propose an efficient architecture based on pre-computation for Viterbi decoders incorporating T-algorithm. Through optimization at both algorithm level and architecture level, the new architecture greatly shortens the long critical path introduced by the conventional T-algorithm. The design example provided in this work demonstrates more than twice improvement in clock speed with negligible computation overhead while maintaining decoding performance.

Electrostatic Potential Distribution by Numerical Method Alternating Direction Implicit Method

Abstract: Charge free electrostatic potential has been calculated from Laplace equation with specific boundaries. Laplace equation is second-order partial differential equation (PDE) widely useful in physics because its solutions occur in problems of electrical, magnetic, and gravitational potentials, of steady-state temperatures, of hydrodynamics and of stress distribution. Solution of Partial Differential Equations (PDEs) is virtually impossible to obtain analytical solution. So, numerical methods are used to approximate the solution of such type of partial differential equation. The Alternating Direction Implicit (ADI) method has been used to solve the two-dimensional Laplace equations on regular (square and rectangular) region with Dirchlet boundary conditions. ADI method is an iterative and unconditionally stable method which is a popular method for solving the large matrix equations that arise in system theory and control theory. The obtained numerical results are compared with analytical solution as well as finite difference method. The results have been shown the better accuracy of ADI method than the finite difference method. The study objective is to check the accuracy of ADI method for the numerical solutions of two-dimensional Laplace equations for calculating potential distribution.

Investigations into Synthetic Fibre Reinforced Concrete Beams

Abstract: Fibre is a small piece of reinforcing material described by a numerical parameter, called aspect ratio which is the ratio of its length to its equivalent diameter (l/d). In the Biblical period Romans introduced the concept of “Fibres” in the building material by using the “HORSE HAIR” as the fibrous material and since then the use of fibres was incorporated. Recently, however, the development of Fibre Reinforced Concrete (FRC) in various fields has provided a technical basis for improving the deficiencies in mortar and concretes. At hydration stage, water tends to escape through various routes and cracks develop on the surface. These leads to water penetration resulting in dampness and need repainting of walls and other repair. The aim of the present experimental investigation is to study the effect of addition of synthetic fibres on the ultimate strength and behavior of the concrete and mortar. The fibre content (by volume) is the main parameter considered in the study. A combination of a low ratio of conventional fibre reinforcement together with synthetic fibers may provide a practical solution, increasing the strength of the beams without causing congestion of the reinforcement. Fibres in the concrete act as crack arresters and considerably enhance the ductility. In the investigation a total of 240 full-scale specimens with and without fibre contents were casted, and tested to failure under symmetrically applied loads. The fibres volume Vf is vary from 0% to 1.5%. As the test was in progress, the development and propagation of cracks, the load at first crack and the mode of failure was noted. The results were compared to control sample and the viability of adding synthetic fibre to concrete and mortar was verified.