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Design of Low Power Signed Multiplier Based on EMBR Techniques
J. Venkata Suman,K. N. Narendra Swamy 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.11
Multiplier is the major component for processing of large amount of data in DSP applications. Using different recoding schemes in Fused Add-Multiply (FAM) design for the reduction of power and look up tables. The performances of 8-bit, 12-bit & 16-bit signed multipliers were designed and obtained results are tabulated using Efficient Modified Booth Recoding (EMBR) techniques, which can be used for low power applications.
Dr. J. M. Mallikarjuna,Mr. S. Swami Nathan,Prof. A Ramesh 한국자동차공학회 2007 International journal of automotive technology Vol.8 No.5
.It is becoming increasingly difficult for engines using conventional fuels and combustion techniques to meet stringent emission norms. The homogeneous charge compression ignition (HCCI) concept is being evaluated on account of its potential to control both smoke and NOx emissions. However, HCCI engines face problems of combustion control. In this work, a single cylinder water-cooled diesel engine was operated in the HCCI mode. Diesel was injected during the suction stroke (0° to 20° degrees aTDC) using a special injection system in order to prepare a nearly homogeneous charge. The engine was able to develop a BMEP (brake mean effective pressure) in the range of 2.15 to 4.32 bar. Extremely low levels of NOx emissions were observed. Though the engine operation was steady, poor brake thermal efficiency (30% lower) and high HC, CO and smoke were problems. The heat release showed two distinct portions: cool flame followed by the main heat release. The low heat release rates were found to result in poor brake thermal efficiency at light loads. At high brake power outputs, improper combustion phasing was the problem. Fuel deposited on the walls was responsible for increased HC and smoke emissions. On the whole, proper combustion phasing and a need for a wellmatched injection system were identified as the important needs.
Nathan, S. Swami,Mallikarjuna, J.M.,Ramesh, A. The Korean Society of Automotive Engineers 2007 International journal of automotive technology Vol.8 No.5
It is becoming increasingly difficult for engines using conventional fuels and combustion techniques to meet stringent emission norms. The homogeneous charge compression ignition(HCCI) concept is being evaluated on account of its potential to control both smoke and NOx emissions. However, HCCI engines face problems of combustion control. In this work, a single cylinder water-cooled diesel engine was operated in the HCCI mode. Diesel was injected during the suction stroke($0^{\circ}$ to $20^{\circ}$ degrees aTDC) using a special injection system in order to prepare a nearly homogeneous charge. The engine was able to develop a BMEP(brake mean effective pressure) in the range of 2.15 to 4.32 bar. Extremely low levels of NOx emissions were observed. Though the engine operation was steady, poor brake thermal efficiency(30% lower) and high HC, CO and smoke were problems. The heat release showed two distinct portions: cool flame followed by the main heat release. The low heat release rates were found to result in poor brake thermal efficiency at light loads. At high brake power outputs, improper combustion phasing was the problem. Fuel deposited on the walls was responsible for increased HC and smoke emissions. On the whole, proper combustion phasing and a need for a well- matched injection system were identified as the important needs.
Jagadeesh Pujari,J.C. Karur,Shashidhar Hugar,Kumar Swamy V 보안공학연구지원센터 2016 International Journal of Signal Processing, Image Vol.9 No.2
Animal image recognition, classification and retrieval from a database based on shape features are of research interest in image processing. This paper proposes a combined graph and texture based approach for recognition of animal contour images. The methodology uses texture features of the complete graph image obtained from the contour of an object. MPEG-7 database is used for testing. The recognition accuracy of 96% is achieved and is an improvement over the state-of-the-reported results. The work has potential applications in image retrieval from databases.
Design of 16-bit Multiplier Using Efficient Recoding Techniques
K. N. Narendra Swamy,J. Venkata Suman 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.10
Multiplier is the major component for processing of large amount of data in DSP applications. Using different recoding schemes in Fused Add-Multiply (FAM) design for the reduction of power and look up tables. The performance of 16-bit signed and unsigned multipliers were designed and obtained results are tabulated using Efficient Modified Booth Recoding (EMBR) techniques, which can be used for low power applications.
A new species of genus Dendrophthoe Mart. (Lorantheae-Loranthaceae) from the Peninsular India
Lal Ji Singh,Vinay Ranjan,L. Rasingam,J. Swamy 국립중앙과학관 2020 Journal of Asia-Pacific Biodiversity Vol.13 No.3
Dendrophthoe gamblei (Loranthaceae) a new species from the Peninsular India is described and illustratedalong with conservation status. Apparently, new species is similar to Dendrophthoe memecylifolia(Wight and Arn.) Danser but strictly differs in respect to its morphology of vegetative and floral characters. A taxonomic key to the species of Dendrophthoe Mart. from India is also provided.