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RISS 인기검색어
- 검색키워드
- 저자 : Karthickeyan, S.M.K. (검색결과 4 건)
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Darlington Based 8T CNTFET SRAM Cells with Low Power and Enhanced Write Stability
M. Elangovan,D. Karthickeyan,M. Arul Kumar,R. Ranjith 한국전기전자재료학회 2022 Transactions on Electrical and Electronic Material Vol.23 No.2
In this paper, a novel low power and high write margin Darlington based NCNTFET Darlington 8T SRAM cell is proposed. The power consumption of the proposed Darlington SRAM cell is compared with that of conventional 6T CNTFET and conventional 8T CNTFET SRAM cells. The power consumption of the proposed Darlington SRAM cells is very less as compared to that of conventional 6T and 8T CNTFET SRAM cells for all write, hold, and read operations. The write static noise margin (WSNM) of the proposed NCNTFET Darlington 8T cell is found to increase by 70.83% than that of both conventional 6T and 8T CNTFET SRAM cell. Eff ect of CNTFET parameters such as chiral vectors (m,n), gate oxide thickness (Hox), dielectric constant of gate oxide material (Kox), temperature, pitch value, number of carbon nano tubes (CNTs) and supply voltage (VDD), on the power performance, drain current (I D ) and drain to source voltage (VDS) of the novel proposed Darlington SRAM cell are investigated. The write, hold, and read power consumption of proposed NCNTFET Darlington 8T SRAM cell is compared with that of some of the existing SRAM cells. The simulation is carried out using Stanford University 32 nm CNTFET model.
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Molecular Characterisation of Nilagiri Sheep (Ovis aries) of South India Based on Microsatellites
Girish, Haris,Sivaselvam, S.N.,Karthickeyan, S.M.K.,Saravanan, R. Asian Australasian Association of Animal Productio 2007 Animal Bioscience Vol.20 No.5
Genetic variation in Nilagiri sheep, the only apparel wool breed in South India was studied using 25 FAO recommended ovine-specific microsatellite markers. The number of observed alleles ranged from 3 to 8 with a mean of 5 across all loci. The size of alleles ranged from 72 to 228 bp. The frequency of alleles ranged from 0.0104 to 0.5781. In total, 125 alleles were observed at the 25 loci studied. The effective number of alleles ranged from 2.18 to 6.49. The mean number of effective alleles was 3.84 across all loci. All the 25 loci were found to be highly polymorphic. The PIC values ranged from 0.4587 to 0.8277 with a mean of 0.6485. Of 25 microsatellites studied, 17 were in Hardy-Weinberg Equilibrium proportions. The observed heterozygosity ranged from 0.4222 to 1.000 with a mean value of 0.7610 whereas the expected heterozygosity ranged from 0.5415 to 0.8459 with a mean value of 0.7213. Except six loci, the other loci revealed negative within-population inbreeding estimates (FIS) indicating excess of heterozygotes in the population of Nilagiri sheep.
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Genetic characterization of Barbari goats using microsatellite markers
J. Ramamoorthi,K. Thilagam,S. M. K. Karthickeyan,S. N. Sivaselvam 대한수의학회 2009 Journal of Veterinary Science Vol.10 No.1
Genetic variation in Barbari goats, a highly prolific breed distributed widely in the northern part of India, known for better milk and meat quality, was studied as a part of genetic characterization and conservation. The genomic DNA from 50 unrelated Barbari goats were amplified via PCR with a panel of 21 microsatellite markers, and resolved through 6 per cent denaturing polyacrylamide gel electrophoresis followed by silver staining. The number of alleles ranged from 4 to 11, with allele sizes ranging from 88 to 220 bp. The distribution of allele frequencies was between 0.0104 and 0.5208. Polymorphism information content varied from 0.5563 to 0.8348. The population was not in Hardy-Weinberg equilibrium for all except two microsatellite loci (ILSTS044 and ILSTS060). The observed heterozygosity ranged from 0.8478 to 1.0000 while the expected heterozygosity ranged from 0.6208 to 0.8509. Based on the results of the present study, there is a good scope for exploiting the genetic variability in the Barbari goats for further improvement of performance.
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Molecular Characterization of Hallikar Breed of Cattle Using Microsatellite Markers
Kumar, S. Naveen,Jayashankar, M.R.,Nagaraja, C.S.,Govindaiah, M.G.,Saravanan, R.,Karthickeyan, S.M.K. Asian Australasian Association of Animal Productio 2006 Animal Bioscience Vol.19 No.5
Molecular characterization of Hallikar, the native cattle breed of Karnataka, was undertaken using 19 cattle specific, highly polymorphic microsatellite markers recommended by FAO. The genomic DNA was subjected to PCR amplification and alleles were resolved through six per cent denaturing PAGE with a 10 bp DNA ladder followed by silver staining. Genotyping of animals was done based on allele size. The number of alleles ranged from three to nine with allele sizes ranging from 102 bp to 294 bp. These alleles were distributed in the frequency range between 0.0306 and 0.8673 in the population. The mean observed number of alleles was $6.368{\pm}1.4225$. The mean observed and expected heterozygosities were $0.7515{\pm}0.1734$ and $0.7850{\pm}0.1381$, respectively. The high heterozygosity observed implies presence of higher genetic variability within Hallikar breed. The PIC (Polymorphism Information Content) values ranged from 0.2322 (ETH152) to 0.8654 (ETH225). The percentage of polymorphic loci obtained was 100 as all the 19 microsatellite markers were found to be polymorphic. Except for ETH152, all the other loci had high PIC values, indicating that these markers are highly informative for characterization of Hallikar breed. The population was tested for Hardy-Weinberg equilibrium at 19 microsatellite loci, and at 74 per cent of the loci the population was found to be in disequilibrium.
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