KCG College of Technology

About: KCG College of Technology is a based out in . It is known for research contribution in the topics: Adsorption & Diesel fuel. The organization has 427 authors who have published 381 publications receiving 2193 citations.

Level shifting voltage copier for hybrid electric vehicles

Abstract: As the number of Plug in hybrid vehicles(PHEVs) are on increase, researches on Multiple input multiple output dc-dc converters have been taken up to increase the efficiency and to improve the lifetime of the batteries. In recent years, multiport dc-dc converters are widely used in PHEVs to enhance the power train electrification. The level shifting multiple input multiple output resonant voltage copier proposed can be implemented especially for parallel hybrid electric vehicles which transmits power from two distinct sources. The summation, subtraction, double, half and inverting circuits are to be studied to implement this dc-dc converter. Each circuit includes only six to seven electronic components therefore ensuring the simplicity and reliability of the voltage copier. The switching losses are reduced by introducing a resonant tank circuit. Therefore a high-efficiency resonant voltage copier circuit is introduced which minimizes the current stress and the pulsation current which are found in the classical circuits. Simulation and experimental results verify the performance of the resonant voltage copier. The circuit is simulated in MATLAB Simulink.

Laser performance of rhodamine B and methyl violet B base dye mixture in solid and liquid media

Abstract: The performance of a distributed feedback dye laser (DFDL) by employing methyl methacrylate (MMA) co-doped with rhodamine B and methyl violet B base dyes was investigated. The dye mixture was incorporated into a solid polymeric matrix and then in a liquid medium and a laser pulse was pumped into it using a 532 nm Nd:YAG laser. Characteristics of energy transfer DFDL and its output powers on various pump powers and acceptor concentration were evaluated both theoretically and experimentally. Slope efficiency of the dye laser as well as wavelength tunability in both liquid and solid media was studied.

Design and Development of XY Micro-Positioning Stage Using Modified Topology Optimization Technique

Abstract: XY positioning stages are fundamental components during precision manipulation of micro sized objects. A compliant mechanism based mechanism is the appropriate choice for the design of XY stage. Topology optimization techniques are utilized to design the compliant mechanism. During the process of topology optimization, senseless regions are appearing from the manufacturability perspective. Senseless regions are staircase boundaries and node to node connectivity which is impossible to manufacture. Interpolation function is included in the topology optimization to minimize the effect of senseless regions. However topologically developed design is post processed to attain the manufacturability. Structural performance of the post processed final design is validated through Finite Element Method (FEM) and experimental technique.

Node set optimization problem for complete Josephus cubes

Abstract: The problem of finding an optimal node set in an interconnection network plays an important role in minimizing the layout of embedding the network into linear chassis. In this paper we find the nested optimal node sets for a complete Josephus cube, a recently proposed fault-tolerant node cluster architecture variant of the binary hypercube which has the same number of nodes as the hypercube but exhibits enhanced embedding, fault tolerance and communications performance than the hypercube and many of its variants. As a byproduct we obtain the minimum layout of embedding the complete Josephus cube into a path, 1-rooted complete binary tree, sibling tree and caterpillar.