Davangere, India
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Sunil K.B.S.,GM Institute of Technology | Manjunath A.S.,Siddaganga Institute of Technology | Christopher S.,DRDO
2016 International Conference on Computation System and Information Technology for Sustainable Solutions, CSITSS 2016 | Year: 2016

Scalable video coding has been highlighted by the High Efficiency Video Coding (HEVC) which has efficient techniques to compress the video size considerably. However, video transmissions over wireless network have remained a challenge due to its limitations on bandwidth and time varying nature of its parameters. This paper presents a novel Inter Frame-Rate Distortion (IF-RD) optimization method for video compression in HEVC using a technique that produces the relationship between levels of transform coefficient and its samples by linear signal model. A quadratic program is used to optimize this problem, however, RD optimization is done on mode selection scheme. The results are presented in the form of Bit rate, PSNR, complexity of computation. The RD improvisation is indicated by Structural Similarity Index (SSI) with respect to Bit rate. Finally the results show a greater improvisation in PSNR, reduction in Computational complexity and increase in SSI. The encoded video can be transmitted in low bandwidth channels like wireless medium. © 2016 IEEE.

Chowdhury I.,GM Institute of Technology | Dasgupta S.P.,Indian Institute of Technology Kharagpur
Indian Geotechnical Journal | Year: 2017

Prevailing practice for computation of bearing capacity of soil under seismic force allows for an increase in its allowable capacity by a factor of 1.25 as recommended in a number of codes around the world. However research and post reconnaissance survey of structures after earthquake shows contradicting evidence to the abovementioned assumption. A number of researchers have thus tried to develop the dynamic bearing capacity factors (Nc, Nq, N) under seismic loading to establish a realistic mathematical model for estimation of ultimate bearing capacity based on assumption that the seismic force is pseudo-static in nature. Present paper attempts to develop a mathematical model based on modal response analysis that shows that bearing capacity of soil varies with mode and actually there are nothing called dynamic bearing capacity factors. The allowable bearing capacity under service load condition is actually augmented by the vibrating soil mass and goes on to reduce the factor of safety provided to the ultimate bearing capacity and under conducive conditions can well reduce the factor of safety below 1.0 inducing failure to the foundation. © 2016, Indian Geotechnical Society.

Venkateshappa S.C.,GM Institute of Technology | Puttiah P.K.W.,Nitte Meenakshi Institute of Technology
Advances in Polymer Technology | Year: 2012

In the present work, the mechanical properties of composites obtained by using areca fibers in epoxy matrix have been investigated. The areca fibers extracted from the areca husk are alkali-treated with potassium hydroxide to get better interfacial bonding between fibers and matrix. The test specimens are prepared with different values of weight ratio of fiber to matrix, the fibers being randomly oriented. The test specimens are cured for different periods of time to study the effect of curing time on the mechanical properties. The results of tests such as water absorption, tension, compression, bending, impact, and hardness conducted on the test specimens are herein reported. It is found that the mechanical properties of the composites tested are greatly influenced by (i) alkali treatment of fiber, (ii) weight ratio of fiber-matrix, and (iii) curing time. © 2011 Wiley Periodicals, Inc. Adv Polym Techn 31: 319-330, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/adv.20255 Copyright © 2011 Wiley Periodicals, Inc.

Ramadevi P.,Jawaharlal Nehru Technological University | Ramadevi P.,KLE University | Sampathkumar D.,Jawaharlal Nehru Technological University | Sampathkumar D.,KLE University | And 2 more authors.
BioResources | Year: 2012

Environmentally beneficial composites can be made by replacing synthetic fibers with various types of cellulosic fibers. Fibers from pine wood, coir, sisal, abaca, coir, etc. are all good candidates. The most important factor in finding good fiber reinforcement in the composites is the strength of adhesion between matrix polymer and fiber. Due to the presence of hydroxyl groups and other polar groups in various constituents of abaca, the moisture absorption is high, which leads to poor wettability and weak interfacial bonding between fibers and the more hydrophobic matrices. Therefore, it is necessary to impart a hydrophobic nature to the fibers by suitable chemical treatments in order to develop composites with better mechanical properties. In the present work, the effect of alkali treatment on the moisture absorption tendency of single abaca fiber was investigated. The results shown that the alkali treated fiber absorbs less moisture than the untreated raw fiber.

Pasha M.,GM Institute of Technology | Pasha M.,Davangere University | Kaleemulla M.,Davangere University
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology | Year: 2013

Metal matrix composites are being increasingly used in aerospace and automobile industries attributed to their improved properties such as elastic modulus, hardness, tensile strength at room and elevated temperatures, wear resistance combined with significant weight savings over unreinforced alloys. Because of these capabilities it can be applied for aviation industries, where the most critical areas of an aircraft to be affected by corrosion are engine inlets, control surfaces landing gear doors, radome, and aerodynamic fairings. They are subjected to wear and corrosion processes, which can occur simultaneously. This article critically reviews the present and past state of understanding of the erosive wear behavior of metals and alloy. First of all, the different types of reinforcing with different coated metal matrix composites are reviewed. The accuring failure mechanisms are discussed. This is followed by discussion of the essential features of erosive wear. Various predictions and models developed by different investigators describing the erosion rate are presented. Finally, the relevant areas for future studies are indicated. © IMechE 2013.

Bharath K.N.,Gm Institute Of Technology | Basavarajappa S.,Davangere University
Science and Engineering of Composite Materials | Year: 2016

Biocomposites (natural fiber composites) from local and renewable resources offer significant sustainability; industrial ecology, eco-efficiency, and green chemistry are guiding the development of the next generation of materials, products, and processes. Considerable growth has been seen in the use of biocomposites in the domestic sector, building materials, aerospace industry, circuit boards, and automotive applications over the past decade, but application in other sectors until now has been limited. Nevertheless, with suitable development, the potential exists for biocomposites to enter new markets and thus stimulate an increase in demand. Many types of natural fibers have been investigated with polymer matrices to produce composite materials that are competitive with synthetic fiber composites which require special attention. The agricultural wastes can be used to prepare fiber-reinforced polymer composites for commercial use and have marketing appeal. The growing global environmental and social concern, high percentage of exhaustion of petroleum resources, and new environmental regulations have forced the search for new composites, compatible with the environment. Many references to the current status of research work on the applications of biocomposites are cited in this review. © 2016 by De Gruyter.

Hamsa N.S.,GM Institute of Technology | Nair V.P.,GM Institute of Technology | Chandramohan V.,Siddaganga Institute of Technology | Patel S.J.,GM Institute of Technology
Asian Journal of Pharmaceutical and Clinical Research | Year: 2013

Inflammatory bowel diseases such as Ulcerative Colitis (UC) are becoming common in this aging society throughout the world which includes formation of ulcers or open sores. Since, there is no known medical cure for UC; the therapeutic armamentarium is aimed at reducing the signs and symptoms associated with the disorder. The role of antibiotics in the treatment of severe active UC is controversialbecause the clinically used anti-inflammatory drugs suffer from the disadvantage of side effects and high cost of treatment. In the present study, NF-kB p50/p65 is docked in two different ways, one with the glucocorticoid receptor protein using ZDOCK in Accelrys Discovery Studio 3.5 and the other is screening and docking of 400 anti-inflammatory natural compounds derived from plant source which offer a great hope in the identification of lead compounds.These compounds were investigated for their inhibitory activity by molecular docking studies and ADME/T properties of the compounds were analyzed for drug like candidates by using the commercial software's Accelrys Discovery Studio, Lead-IT and Gold 5.1. Based on the docking results and toxicity analysis using TOPKAT, the best compounds determined are Ginkgetin, Bilobetin and Mesuaxanthone_B. The Pharmacophore studies have also shown that these compounds are having very less side effects and further investigations are requiredto take into clinical trials.

Nagaraja B.G.,GM Institute of Technology | Jayanna H.S.,Siddaganga Institute of Technology
International Journal of Signal and Imaging Systems Engineering | Year: 2016

In this paper, recognising the speaker in the multilingual context is demonstrated. Multilingual speaker recognition is useful in countries like India, Canada and South Africa where multiple languages are used for communication. In such countries, use of the monolingual speaker recognition system may not yield the expected level of performance. This is because a speaker may change his training and test languages whenever it is necessary. As a result, the system yields poor performance due to variation in language parameters. Therefore, developing a robust multilingual speaker recognition system is an issue in many countries. Researchers in the field of speaker recognition have made a few attempts to identify the speaker in a multilingual context. This paper gives an overview of various techniques developed for monolingual, crosslingual and multilingual speaker recognition systems. Copyright © 2016 Inderscience Enterprises Ltd.

Neelambike S.,GM Institute of Technology | Chandrika J.,Malnad College of Engineering
2015 IEEE International Conference on Computational Intelligence and Computing Research, ICCIC 2015 | Year: 2015

Recent development in communication of wireless communication for automobile industry have aided the growth of ITS (Intelligent Transport System) which solves numerous vehicular mobility concerns like traffic congestion, accidental mishap etc. VANET (Vehicular Ad-hoc Network) a characteristic class of MANET (Mobile ad-hoc Network) which is a fundamental element of Intelligent Transport System in which the moving vehicles inter connected and communicates with each other remotely. Wireless technologies play an important part in assisting both Vehicle to Infrastructure (V2I) and Vehicle to Vehicle (V2V) correspondence in VANET. The existing scheduling technique does not consider the environmental factor which affects the throughput performance and increases packet drop rate which intern incur packet delay. Here in this work the author propose a RHU (Rural, Highway and Urban) environment model considering the environmental factor. The efficient environmental model algorithm is incorporated into slotted aloha in IEEE 802.11p MAC protocols which aided as a spine for assisting both safety application and non-Safety applications. The 802.11p also known as DSRC/WAVE technologies support low latency V2I communication. Experiments are conducted for collision and throughput efficiency. The experimental result shows the proposed environmental model impact on collision and throughput efficiency for varied environment and thus improving QoS for VANET application. © 2015 IEEE.

Srinivasa C.V.,GM Institute of Technology | Bharath K.N.,GM Institute of Technology
Journal of Materials and Environmental Science | Year: 2011

Natural Fibers composites are considered to have potential use as reinforcing material in polymer matrix composites because of their good strength, stiffness, low cost, environmental friendly and biodegradable. In present study, mechanical properties for natural fiber composites were evaluated. Here, areca fiber is used as new natural fiber reinforcement and epoxy resin as matrix. The extracted areca fibers from areca husk were chemically treated to get better interfacial bonding between fiber and matrix. Composite were prepared with randomly orientated fibers with different proportions of fibers and matrix ratio. Mechanical tests i.e. impact and hardness tests were performed and the results are reported. The results showed that, as the fiber volume fraction and composite post curing time increases the mechanical properties of the composite increases.

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