Global Academy of Technology

Bangalore, India

Global Academy of Technology

Bangalore, India
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Hanji B.R.,Global Academy of Technology | Shettar R.,Rashtreeya Vidyalaya College of Engineering
2016 International Conference on Computation System and Information Technology for Sustainable Solutions, CSITSS 2016 | Year: 2016

The pervasive use of mobile handheld devices popularize Mobile Ad Hoc Network which do not require wired infrastructure for communication. Retaining energy of the network requires QoS routing. The process of flooding route request packets while establishing path is inevitable and it consumes lot of network resources. On Demand Multipath routing is the most promising technique in MANETs. The proposed method finds efficient and stable routes by considering two parameters geographical position and energy of nodes. It reduces the number of Route Request Packets flooded for establishing routes by having multiple routes. Destination node receives many Route Request messages and replies back with Route Replies. The source selects multiple paths. Data transfer starts with one path and then switch to other paths. This method shows better performance in terms of throughput, routing load and network lifetime. The results shows that there is increase in throughput by 25% to 30%, routing load is decreased by 10% to 15% and network lifetime increased by about 10% to 12%. © 2016 IEEE.

Rohini V.,Don Bosco Institute of Technology | Thomas M.,Don Bosco Institute of Technology | Latha C.A.,Global Academy of Technology
2016 IEEE International Conference on Recent Trends in Electronics, Information and Communication Technology, RTEICT 2016 - Proceedings | Year: 2016

Sentiment analysis (SA) is one of the important fieldsof Machine learning Language which involves analysis using natural language processing.The main goal of sentiment analysis is to detect and analyze attitude, opinions or sentiments in the text. Sentiment analysis has reachedits popularity by extracting Knowledge from huge amount data present online. The Process of analysis includes selecting features and opinionwhich is a challenging task in languages other than English. There are very few research works done for determining sentiments in regional languages. ThisPaperaims on domain based sentiment analysis in Regional language specific to moviesusing machine learning algorithm for classification and provide a comparison between analysis using direct Kannada dataset and machine translated English language. © 2016 IEEE.

Kiran Y.M.,Honeywell | Preethi Sharma K.,Global Academy of Technology | Nandihalli R.,Rashtreeya Vidyalaya College of Engineering
Proceedings of the 2016 2nd International Conference on Applied and Theoretical Computing and Communication Technology, iCATccT 2016 | Year: 2017

Diagnosis and detection of faults in a switching regulator plays an important role in safety critical application. This paper briefs about the causes for the failure of semiconductor components used in the power supply design and on the methods used to detect failure of components like MOSFET, diode and output filter capacitor. It also briefs on the approaches followed to indicate power supply failure and on the approaches used to avoid false indications in response to transients. Most of the battery chargers operate at increased switching frequency during the transition from constant current to constant voltage region. This paper applies above method to switching regulators in order to avoid auto restart in response to momentary overload. In this paper, names-power supply, regulator, and switching regulator represent Switched Mode Power Supplies (SMPS). © 2016 IEEE.

Rajagopalachar S.,Reva University | Joshi S.S.,KLE University | Reddy R.P.,Global Academy of Technology
Biofuels | Year: 2017

Garcinia gummi-gutta (L. Robson) seed oil (GGO), a novel feedstock with high oil content (33.5 wt%), was subjected to homogeneous and heterogeneous transesterification using NaOH, KOH and CaO. The low polyunsaturation (1.7 wt%), high monounsaturation (55.2 wt%) and moderate saturation (39.72 wt%) is a promising factor for biodiesel synthesis. A biodiesel yield of 97.2 and 97% was achieved using NaOH and KOH, respectively, during homogeneous transesterification under optimal conditions: catalyst 1.4wt% (NaOH) 1.6wt% (KOH), molar ratio 1:6, stirring rate 800 rpm, temperature 55°C, time 1.5 h. With CaO as basic heterogeneous catalyst, a yield of 96.5% was accomplished under optimal conditions: catalyst wt% 4.5, molar ratio 1:9, stirring rate 1000 rpm, temperature 60°C, time 2.5 h. High stirring rate played a significant role and resulted in better yield at economical catalyst wt%, moderate temperature and low methanol:oil molar ratio in a short interval of time. The reusability of the CaO catalyst offers a more economical, ecofriendly way of biodiesel synthesis compared to homogeneous alkali catalysts. Even after 10 cycles, CaO was effective for transesterification. The separation of biodiesel was easier in the order CaO > KOH > NaOH. The fuel properties were evaluated as per Bureau of Indian Standards. © 2017 Informa UK Limited, trading as Taylor & Francis Group

Prakash Rao C.R.,Global Academy of Technology | Narendraviswanath N.,Global Academy of Technology
Procedia Engineering | Year: 2014

Metal matrix composites being used in automobile, aviation, naval, space and other structural applications because of their unique balance of physical and mechanical properties. The metal matrix composites are produced using diverse technologies in order to meet the market demand such as lower density, higher wear resistance, thermal stability at lower cost per component. Composite materials replace almost all the monolithic material while posing challenges for machining hence are graded as difficult to machine materials. The hetrogeneous structure of the composite materials leads to the failure of cutting tool during machining composites are mainly attributed for the presence of hard particles which leads to higher surface roughness value. Thus, present paper presents the results on surface roughness values of K10 grade carbide and Poly Crystaline Diamond (PCD) inserts while turning Al6061-flyash composites containing 0% to 15% fly ash in step of 5%. Parametric studies have been carried out as per ISO3685 standards following dry machining condition. The machining parameters are cutting speeds of 300m/min to 600m/min in step of 100m/min, feed of 0.06mm/revolution to 0.24mm/revolution in step of 0.06mm/revolution using a constant depth of cut of 1.2 mm which is equal to three times to the nose radius of the cutting tool. The results revealed that PCD inserts exhibits lower surface roughness while turning composites containing 10% filler material when compared with that of K10 grade tungsten carbide insert. © 2014 The Authors.

Mayaja N.A.,Atria Institute of Technology | Srinivasa C.V.,Global Academy of Technology
Proceedings of the 16th International Association for Mathematical Geosciences - Geostatistical and Geospatial Approaches for the Characterization of Natural Resources in the Environment: Challenges, Processes and Strategies, IAMG 2014 | Year: 2014

Kerala, one of the smallest States of South India, is blessed with forty-four rivers. River Pampa is the third largest river in the State of Kerala, 176km long with a catchment area of 2235Sq. km. Recurring tropical monsoon floods during every season, causing substantial damages, is one of the perennial problems experienced in this river basin. Studying rainfall trend in the river basin and its underlying features are vital in understanding the flood phenomena and its socio-economic impacts. The present study evaluates the trend of rainfall in the Pampa river basin, utilizing the data from five gauging stations. The time series of monthly and annual rainfalls for the past twenty two years have been analyzed statistically. Significant changes have been observed in the basin rainfall features - both seasonal and annual rainfall. © 2014, Capital Publishing Company.

Anil P.N.,Global Academy of Technology | Natarajan S.,PES Institute of Technology
ICMLC 2010 - The 2nd International Conference on Machine Learning and Computing | Year: 2010

Road Extraction from satellite imagery is of fundamental importance in the context of spatial data capturing and updating for GIS applications. As fully automatic method for feature extraction is difficult due to the increasing complexity of objects. This paper proposes a semi-automatic road extraction methodology from high resolution satellite imagery using active contour model (Snakes). First the image is preprocessed using relaxed median filter. In the next step the user inputs initial seed points on the road to be extracted. Then the road segment is extracted using active contour model. The method is tested using high resolution satellite imagery and the results are presented in the paper. © 2010 IEEE.

Preethi B.,Global Academy of Technology | Sumangala B.V.,National Institute of Technology Jalandhar
Lecture Notes in Electrical Engineering | Year: 2014

This paper presents the analysis of the FACTS device-thyristor-switched capacitor (TSC) connected on the secondary terminals of the distribution feeder (transformer) in a power system network for effective voltage stability and reactive power control. The FACTS device is advantageous over the mechanical switch operated capacitors in the aspects of faster control, improved system performance, and system voltage stability. The power system network simulations are carried out, and the model of the TSC is realized for a 220 kV transmission line system using Simulink in MATLAB. © 2014 Springer India.

Kangavalli R.,Global Academy of Technology | Vagdevi S.,Global Academy of Technology
Souvenir of the 2015 IEEE International Advance Computing Conference, IACC 2015 | Year: 2015

Cloud computing has been considered as the architectural model for future generation Information Technology. Inspite of its numerous advantages in both technical and business aspects, cloud computing still poses new challenges particularly in data storage security. The main threat here is trustworthiness. Data centers which power a cloud cannot perform computations on encrypted data stored on cloud. With the advances in homomorphic encryption techniques, data stored in cloud can be analyzed without decryption of the entire data. This paper discusses about various homomorphic encryption schemes and their applications on various domains. A homomorphic method with byte level homomorphism has been proposed. © 2015 IEEE.

Hanji B.R.,Global Academy of Technology | Shettar R.,Global Academy of Technology
2015 International Conference on Computer Communication and Informatics, ICCCI 2015 | Year: 2015

Mobile Ad Hoc Network [MANET] is a network that changes location and organize itself on the fly. The low resource availability demands efficient utilization and motivates optimal routing. This paper introduces an Improved AODV (I-AODV) protocol which considers the location and energy of nodes. Route discovery area is restricted based on the source and destination location. The nodes lying in this region are considered for routing. In the proposed method one hop communication takes place when the two nodes lie in the communicating range of each other. If the communicating nodes are far away then the intermediate nodes lying within the 75% communication range of source and having the distance between the selected intermediate node and destination less than other intermediate nodes distance with destination node are selected. The selected intermediate node is also checked for having energy greater than threshold energy which increases the lifetime of the path. Nodes involved in one communication session are not involved in other communication session, since participation of a node in more than one session will drain out energy soon leading to path break. The other nodes out of region do not participate in the routing process. The basic AODV protocol is compared with the proposed Improved-AODV (I-AODV) protocol considering the three metrics: packet delivery ratio, routing overhead & control overhead and energy consumption. The simulation results show that there is an average improvement of 6.72 times in packet delivery ratio, an average improvement of 1.58 times on routing and control overhead and 14.67 times of average reduction in terms of energy consumption with respect to basic AODV protocol. © 2015 IEEE.

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