Faculty Publications

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    TRANSYT-12 in the design and analysis of coordinated traffic signaling for three major junctions of Mangalore City
    (2012) George, V.; Hemanth, K.R.
    The present work deals with the application of TRANSYT-12, for the design of a co-ordination of the signals on three main junctions of the signal system for Mangalore city. The road network loop connecting PVS Junction, Hampanakatta, and Jyothi Junction, joining back to PVS Junction was analysed. The other nodes representing Bunts Hostel Junction, Navbharath Circle, and Karnataka Bank Junction are considered for their contribution to the traffic network loop, in addition to the flows arriving from a number of give-ways. The existing scenario, with the present system of fixed time isolated signals was compared to the alternate scenario with the use of coordinated signals, and improvements in the existing network. It was found that the performance of traffic flow in the network could be improved considerably by adopting various remedial measures. Studies were also performed for the year 2012. © 2012 CAFET-INNOVA TECHNICAL SOCIETY.
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    Statistical analysis of flexural modulus of cenospheres-reinforced, recycled poly(ethylene terephthalate) using Taguchi method
    (SAGE Publications Ltd, 2014) Prabhu, B.K.; Dudse, S.; Kulkarni, S.M.
    Statistical methods are playing an important role in the design and analysis of engineering experiments. One such method called Taguchi method is found to provide sufficient information to optimize a process with the use of minimum number of experiments. This article presents systematic application of Taguchi method for optimizing the process parameters of compression moulding process. The response under consideration is flexural modulus. The study includes the use of recycled polyethylene terephthalate reinforced with fly ash cenospheres. The use of these recycled materials is promising to reduce the cost of the engineering parts and help nature by increasing waste utilization. A model for flexural modulus is designed and verified through experiments. The outcome from analysis of variance brings out the facts that moulding pressure, moulding temperature and weight fraction of cenospheres are the three most significant parameters of flexural modulus, contributing 59.44, 21.45 and 7.75%, respectively. The optimum set values for these parameters are found to be 5 MPa, 50°C and 15%. The proposed quadratic model for flexural modulus proves to be well in agreement with the experimental results. © The Author(s) 2013.
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    Design and analysis of dual output flyback converter for standalone PV/battery system
    (International Journal of Renewable Energy Research, 2017) Sabhahit, N.S.; Gaonkar, D.N.; Naik, A.
    In this paper, the cost comparison is carried out among flyback, forward and full bridge converters based upon the number of circuit components. The performance assessment in terms of efficiency of the PV array with MPPT controller using flyback and forward converter is detailed. The design and control of Photovoltaic/battery system using a flyback converter for stand-alone applications is presented. A flyback converter is used to get DC output along with an AC output for high frequency applications without employing an inverter. The PV/battery system uses photovoltaic array as the main source of power and a battery as the storage device. The energy input of the PV system is effectively utilized by adopting an MPPT technique and the storage battery is controlled to balance the load requirements using a bi-directional dc-dc converter. This system ensures that the load demand is satisfied under varying solar irradiance conditions and a constant voltage is maintained for different load conditions. The modelling and control strategy of the implemented system is realized in MATLAB/Simulink environment.
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    A finite element based assessment of static behavior of multiphase magneto-electro-elastic beams under different thermal loading
    (Techno-Press, 2017) Mahesh, M.; Kattimani, S.C.
    In this article, static analysis of a magneto-electro-elastic (MEE) beam subjected to various thermal loading and boundary conditions has been investigated. Influence of pyroeffects (pyroelectric and pyromagnetic) on the direct quantities (displacements and the potentials) of the MEE beam under different boundary conditions is studied. The finite element (FE) formulation of the MEE beam is developed using the total potential energy principle and the constitutive equations of the MEE material taking into account the coupling between elastic, electric, magnetic and thermal properties. Using the Maxwell electrostatic and electromagnetic relations, variation of stresses, displacements, electric and magnetic potentials along the length of the MEE beam are investigated. Effect of volume fractions, aspect ratio and boundary conditions on the direct quantities in thermal environment has been determined. The present investigation may be useful in design and analysis of magnetoelectroelastic smart structures and sensor applications. © 2017 Techno-Press, Ltd.
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    Temperature Detection Using Plasmonic Waveguide Ring Resonator: Design and Analysis
    (Institute of Electrical and Electronics Engineers Inc., 2024) Nausheen, T.A.; Nikhilesh Kumar, C.; Khanna, A.; Singh, M.
    A 3-D-hybrid plasmonic waveguide (HPWG) cascaded ring resonator-based temperature sensor is studied in the infrared (IR) spectral regime. The proposed design achieves high sensitivity and precision in temperature measurements by integrating the unique properties of plasmonic and photonics. The HPWG enhances the interaction between the optical field and the surrounding environment, while the cascaded ring resonators provide a compact and efficient means of modulating the optical signal in response to temperature changes. Our theoretical analysis and numerical simulations demonstrate that the device exhibits a significant shift in resonance wavelength with temperature variations, leading to an enhanced sensitivity (0.37 nm/K) compared to traditional photonic sensors. The potential applications of this temperature sensor span various fields, including environmental monitoring, biomedical diagnostics, and industrial process control. It offers a promising solution for advanced temperature sensing with improved performance and miniaturization. © 1973-2012 IEEE.