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5篇 您的检索式:作者名="SIVA U"
    题名 作者 年代 出处 被引量
1Structures, vibrational frequencies and normal modes of Azo Dyes: Infrared, roman and functional calculations 显示文摘NANDITA B SIVA U 2000J Phys Chem A2000,104,:1
2Prooxidant activities of alpha-lipoic acid on oxidative protein damage in the aging rat heart muscle显示文摘CAKATAY U KAYALI R SIVAS A 2005Arch Gerontol Geriatr2005,40,3:1
3Isolation and screening of endophytic aetinomycetes from different part of Emblica officinalis显示文摘Kumar U Singh A Siva Kumar T 2011Annals of Biological Research2011,2,4:1
4A parallel complex divider architecture based on DCD iterations for computing complex division in MVDR beamformer显示文摘This paper presents a hardware architecture using mixed pipeline and parallel processing for complex division based on dichotomous coordinate descent(DCD) iterations. The objective of the proposed work is to achieve low-latency and resource optimized complex divider architecture in adaptive weight computation stage of minimum variance distortionless response(MVDR)algorithm. In this work, computation of complex division is modeled as a 2×2 linear equation solution problem and the DCD algorithm allows linear systems of equations to be solved with high degree of computational efficiency. The operations in the existing DCD algorithm are suitably parallel pipelined and the performance is optimized to 2 clock cycles per iteration. To improve the degree of parallelism, a parallel column vector read architecture is devised.The proposed work is implemented on the field programmable gate array(FPGA) platform and the results are compared with state-of-art literature. It concludes that the proposed architecture is suitable for complex division in adaptive weight computation stage of MVDR beamformer. We demonstrate the performance of the proposed architecture for MVDR beamformer employed in medical ultrasound imaging applications.KIDAV Jayaraj U SIVA Mangai N M PERUMAL M Pillai 2018Journal of Systems Engineering and Electronics2018,29,6:0
5Study of residual stresses and distortions from the Ti6Al4V based thinwalled geometries built using LPBF process显示文摘The current paper focuses on the prediction of residual stresses and distortions in the Laser Powder Bed Fusion(LPBF)built Ti6Al4V thin-walled geometries using Ansys Additive Print(AAP)software which employs a layer-by-layer accumulation of inherent strain to calculate the deformations.Isotropic and anisotropic strain scaling factors were calibrated initially within the APP software for the Ti6Al4V based single cantilever beam geometry.Subsequently,the numerical simulations were performed in APP software and computed the residual stresses and distortions for the varied process parameters including laser power,scan speed and hatch distance while maintaining the layer thickness constant for all the design iterations.The numerical predictions were compared;they were found to match reasonably well with the XRD measurements within the calibrated regime.Jagatheeshkumar S Raguraman M Siva Prasad AVS Nagesha B K Chandrasekhar U 2023Defence Technology(防务技术)2023,28,10:0
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