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Mathapati B.S.,APPA Institute of Engineering and Technology
ICIME 2010 - 2010 2nd IEEE International Conference on Information Management and Engineering | Year: 2010

Extensive research has been done on reliable data forwarding in sensor networks. Existing protocols provide reliability at the cost of high energy consumption. In this paper, we propose to develop an Adaptive Energy Efficient Forwarding Protocol (AEEFP) with the aim of keeping the energy consumption low while achieving high reliability. In our proposed protocol, the data forwarding probability is adaptively determined based on the measured loss conditions. Since energy consumption is minimized, the network lifetime is maximized. Since the source rebroadcast the data, until the packet loss is minimized, high data reliability is achieved. By simulation results we show that the proposed protocol achieves high reliability while ensuring low energy consumption and overhead. © 2010 IEEE.


Naduvinamani N.B.,Gulbarga University | Siddangouda A.,Appa Institute of Engineering and Technology | Biradar S.N.,Cb College
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology | Year: 2015

In this paper, a theoretical study of the combined effects of surface roughness and the variation of viscosity with pressure on the squeeze film lubrication between sphere and a flat plate is presented. Based on the Christensens stochastic theory for the hydrodynamic lubrication of rough surfaces, two types of one-dimensional surface roughness (radial and azimutal) patterns are considered. The generalized averaged Reynolds equation for Stokes couple stress fluids accounting for the pressure dependent viscosity is mathematically derived for the problem under consideration. The standard perturbation technique is used to solve the averaged nonlinear Reynolds equation and an approximate analytical solution for the fluid film mean pressure is obtained for the two types of one-dimensional roughness patterns. It is found that, the effects of couple stresses and pressure dependent viscosity variation are to improve the squeeze film characteristics. © Institution of Mechanical Engineers.


Savadi A.,Appa Institute of Engineering and Technology
Proceedings of the 2016 IEEE International Conference on Wireless Communications, Signal Processing and Networking, WiSPNET 2016 | Year: 2016

this present paper deals with the exhaustive review of literature based on different algorithms for design of high speed digital signal processor. To make an efficient and effective processor the features like pipelining, parallelism and hazard handling capabilities are used. High speed multipliers, divider and adders are prime requirement for DSP operations. The multiplier has been designed using Urdhva triyakbhyam algorithm and binary division can be implemented using NND and Paravartya method. It requires less time, power and gives results faster. © 2016 IEEE.


Siddangouda A.,Appa Institute of Engineering and Technology | Biradar T.V.,Sharnbasveshwar Science College | Naduvinamani N.B.,Gulbarga University
Journal of the Brazilian Society of Mechanical Sciences and Engineering | Year: 2014

In this paper, theoretical analysis of combined effects of micropolarity and surface roughness on the performance characteristics of hydrodynamic lubrication of slider bearings with various film shapes such as plane slider bearing, exponential slider bearing, secant-shaped slider bearing and hyperbolic slider bearing is presented. A stochastic random variable with non-zero mean, variance and skewness is assumed to mathematically model the surface roughness of the slider bearing. The Eringen's (J Math Mech 16:1-18, 1) micropolar fluid is used to characterize the rheological behavior of the lubricant with polymer additives. The averaged modified Reynolds equation is derived and the closed form of expressions for the bearing characteristics such as load carrying capacity, frictional force, center of pressure are obtained. Numerical results are compared for various film shapes under consideration, the negatively skewed surface roughness increases the load carrying capacity, frictional force and temperature. © 2013 The Brazilian Society of Mechanical Sciences and Engineering.


Naduvinamani N.B.,Gulbarga University | Apparao S.,Appa Institute of Engineering and Technology
Journal of Marine Science and Technology | Year: 2010

In this paper, a theoretical analysis of the effect of surface roughness on the lubrication characteristics of inclined stepped composite bearings with micropolar fluid is examined. A generalized form of surface roughness is mathematically modeled by a stochastic random variable with non-zero mean, variance and skewness. The generalized average Reynolds type equation is derived for the rough inclined stepped composite bearings with micropolar fluid. The closed form expressions are obtained for the fluid film pressure, load carrying capacity, frictional force. These expressions can be utilized to obtain the performance characteristics of four different types of bearing system viz; rough plane inclined slider, rough composite tapered land bearing, rough stepped bearing and rough composite tapered concave bearing. The numerical computations of the results show that the negatively skewed surface roughness pattern increases fluid film pressure, load carrying capacity and decreases the coefficient of friction whereas adverse effects were found for the positively skewed surface roughness pattern. Further, the rough inclined stepped slider bearing provides the largest load carrying capacity and the least coefficient of friction as compared to the other three geometries under consideration.


Malipatil S.,APPA Institute of Engineering and Technology | Rekha S.,APPA Institute of Engineering and Technology
2015 International Conference on Pervasive Computing: Advance Communication Technology and Application for Society, ICPC 2015 | Year: 2015

Network on chip is an emerging technology which provides data reliability and high speed with less power consumption. With the technological advancements a large number of devices can be integrated into a single chip. So the communication between these devices becomes vital. The network on chip (NoC) router is used for such communication. This paper focuses on the design analysis of 10 port router. The delay (2.571ns) and power (80.98mW) is minimized by using crossbar switch. The proposed architecture of 10 port router is simulated and synthesized in Xilinx ISE 14.4 software. © 2015 IEEE.


Siddangouda A.,Appa Institute of Engineering and Technology
Lubrication Science | Year: 2012

In this paper, the effect of surface roughness on the performance characteristic of porous inclined stepped composite bearings is studied. A generalised form of surface roughness is mathematically modelled by a stochastic random variable with non-zero mean, variance and skewness. The generalised average Reynolds-type equation is derived for the rough porous inclined stepped composite bearings with micropolar fluid. The closed-form expressions are obtained for the fluid film pressure, load-carrying capacity and frictional force. The results are presented for three different types of bearing system. The numerical computations of the results show that the negatively skewed surface roughness pattern increases fluid film pressure and load-carrying capacity and decreases the coefficient of friction, whereas adverse effects were found for the positively skewed surface roughness pattern. Further, the rough porous inclined stepped composite bearing provides the largest load-carrying capacity and the least coefficient of friction as compared with the porous plane slider and porous composite tapered concave bearings. Copyright © 2012 John Wiley & Sons, Ltd.


Siddangouda A.,Appa Institute of Engineering and Technology
Tribology in Industry | Year: 2015

In this paper, the theoretical study of squeeze film characteristics between porous parallel stepped plates with non-Newtonian micropolar fluid is presented. The lubricant in the film region and also in the porous is modeled as Eringen’s micropolar fluid. A non-Newtonian modified Reynolds equation is derived for porous parallel stepped plates and applied to obtain solution of squeeze film characteristics. Comparing with the classical Newtonian lubricant case, the influence non-Newtonian micropolar fluids are found to enhance the load carrying capacity and lengthen the approaching the time of porous parallel stepped plates. The load capacity decreases as the step height increases. © 2015 Published by Faculty of Engineering.


Sonnad S.,APPA Institute of Engineering and Technology
Proceedings of the 2016 IEEE International Conference on Wireless Communications, Signal Processing and Networking, WiSPNET 2016 | Year: 2016

The purpose of satellite image fusion of multispectral and panchromatic images is a method to combine the desirable characteristic of high spatial panchromatic (PAN) image and low spatial multispectral (MS) image to obtain single multispectral image with high spatial resolution and high spectral resolution. This paper furnish a survey on various image fusion algorithms of MS and PAN images such as, Brovey transform, Intensity-Hue-Saturation(IHS) transform, Principal Component Analysis (PCA), Highpass Filtering, Wavelet transform, Integration of different transform methods with IHS, fusion method based on PCA and feature product of Wavelet transform, Fourier transform, General Intensity- Hue-Saturation (GIHS) transform, Optimal Filter design, modified Wavelet Averaging Merging method and modified Bi-cubic Interpolation method in non Subsampled Contourlet transform, improved IHS and PCA merges based on Wavelet decomposition, etc. © 2016 IEEE.


Nawaldgi S.,APPA Institute of Engineering and Technology
Proceedings of the 2016 IEEE International Conference on Wireless Communications, Signal Processing and Networking, WiSPNET 2016 | Year: 2016

Glaucoma, an eye disease, is often referred to as the silent thief of sight. The damage done by glaucoma is irreversible. Early detection and treatment of glaucoma is the only solution. Till date many works have been done towards automatic glaucoma detection using Color Fundus Images (CFI) and Optical Coherence Tomography (OCT) images by extracting structural features. Structural features can be extracted from optic nerve head (ONH) analysis in case of CFI and Retinal Layers (RL) analysis in OCT images for glaucoma assessment. But unfortunately, the works till date fall short of expected accuracy in this regard. A review of automated glaucoma detection techniques is presented in this paper. The paper also discusses various structural features that are relevant to CFI and OCT images respectively for automated glaucoma detection. The paper concludes that combining structural features from both CFI and OCT images would result in more accurate glaucoma assessment. © 2016 IEEE.

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