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2. Effect of Integrated Soil Management Practices (ISMP) on Soil Properties and Soil Quality Indices in Hot Moist Semi-Arid Red Alfisol Soils of Bangalore Region

Author

Sharma, K.L., Chary, G. Ravindra, Reddy, K. Sammi, Indoria, A.K., Chandrika, D. Suma, Lal, Munna, Grace, J. Kusuma, Ramachandrappa, B.K., Mudalagiriyappa, Rao, Ch. Srinivasa, Gopinath, K.A., Narsimlu, Boini, Kumar, T. Satish, Thimmegowda, M.N., Chandrappa, M., Vasanthi, B.G., Devaraja, K., Vasavi, M., and Haindavi, P.

Published
2018
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18. A Fuzzy Differential Evolution Algorithm for Job Scheduling on Computational Grids

Author

Rao, Ch. Srinivasa and Babu, B. Raveendra

Subjects
Computer Science - Distributed, Parallel, and Cluster Computing
Abstract

Grid computing is the recently growing area of computing that share data, storage, computing across geographically dispersed area. This paper proposes a novel fuzzy approach using Differential Evolution (DE) for scheduling jobs on computational grids. The fuzzy based DE generates an optimal plan to complete the jobs within a minimum period of time. We evaluate the performance of the proposed fuzzy based DE algorithm with Genetic Algorithm (GA), Simulated Annealing (SA), Differential Evolution and fuzzy PSO. Experimental results have shown that the new algorithm produces more optimal solutions for the job scheduling problems compared to other algorithms., Comment: 6 pages, 9 figures

Published
2014
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19. Robust Video Watermarking Schemes in Phase domain Using Binary Phase Shift Keying

Author

Meenakshi, K., Rao, Ch. Srinivasa, and Prasad, K. Satya

Subjects
Computer Science - Multimedia, Computer Science - Cryptography and Security
Abstract

This paper presents a robust video watermarking scheme in Discrete Fourier Transform (DFT) and Sequencyordered Complex Hadamard Transform (SCHT). The DFT and SCHT coefficients are complex and consist of both magnitude and phase and are well suited to adopt phase shift keying techniques to embed the watermark. In the proposed schemes, the phases of DFT and SCHT coefficients are modified to convey watermark information using binary phase shift keying in cover video. Low amplitude block selection (LABS) is used to improve transparency, amplitude boost to improve the resistance of watermark from signal processing and compression attacks and spread spectrum technique is used for encrypting watermark in order to protect it from third party. It is observed that both algorithms showing more or less same robustness but SCHT offers high transparency, simple implementation and less computational cost than DFT., Comment: 13 pages

Published
2014

23. Content Based Image Retrieval Using Exact Legendre Moments and Support Vector Machine

Author

Rao, Ch. Srinivasa, Kumar, S. Srinivas, and Mohan, B. Chandra

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

Content Based Image Retrieval (CBIR) systems based on shape using invariant image moments, viz., Moment Invariants (MI) and Zernike Moments (ZM) are available in the literature. MI and ZM are good at representing the shape features of an image. However, non-orthogonality of MI and poor reconstruction of ZM restrict their application in CBIR. Therefore, an efficient and orthogonal moment based CBIR system is needed. Legendre Moments (LM) are orthogonal, computationally faster, and can represent image shape features compactly. CBIR system using Exact Legendre Moments (ELM) for gray scale images is proposed in this work. Superiority of the proposed CBIR system is observed over other moment based methods, viz., MI and ZM in terms of retrieval efficiency and retrieval time. Further, the classification efficiency is improved by employing Support Vector Machine (SVM) classifier. Improved retrieval results are obtained over existing CBIR algorithm based on Stacked Euler Vector (SERVE) combined with Modified Moment Invariants (MMI)., Comment: 11 Pages, IJMA

Published
2010
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24. Enhanced Direct Torque Control for DFIM-Based Wind Turbines: Voltage Dip Resilience and Crowbar Protection Elimination.

Author

Kiran, Gudala Sai, Rao, Ch. Srinivasa, and Kumar, T. Anil

Subjects
WIND turbines, TORQUE control, VOLTAGE, WIND power, ELECTRIC power distribution grids, TURBINES
Abstract

This paper explores wind energy control systems, with a special emphasis on the implementation of Enhanced Direct Torque Control (DTC) in wind turbines that use Doubly Fed Induction Machines (DFIM). The main goals are to improve the turbines' ability to withstand voltage fluctuations in the power grid and remove the need for crowbar protection by including an LCL filter. The study highlights the crucial importance of Enhanced DTC in ensuring the steady functioning of turbines under demanding grid circumstances, including as voltage swings. The use of an LCL filter is crucial in reducing high-frequency elements, thereby minimizing the effects of voltage dips. Furthermore, the research emphasizes the enhanced control structure produced via the removal of crowbar protection, eventually enhancing the dependability of the system. Finally, the proposed work enhances the optimization of wind turbines that use DFIM technology by using sophisticated control algorithms. This adds to improving the efficiency and sustainability of wind energy production. [ABSTRACT FROM AUTHOR]

Published
2024
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42. Soil bacterial community structure and functioning in a long-term conservation agriculture experiment under semi-arid rainfed production system.

Author

Pratibha, G., Manjunath, M., Raju, B. M. K., Srinivas, I., Rao, K. V., Shanker, Arun K., Prasad, J. V. N. S., Rao, M. Srinivasa, Kundu, Sumanta, Indoria, A. K., Kumar, Upendra, Rao, K. Srinivasa, Anna, Shivakumar, Rao, Ch. Srinivasa, Singh, V. K., Biswas, A. K., and Chaudhari, S. K.

Subjects
SOIL microbial ecology, BACTERIAL communities, NUTRIENT cycles, GREENHOUSE gases, CLIMATE change mitigation, ACID phosphatase, CROPPING systems
Abstract

Soil microbial communities are important drivers of biogeochemical cycling of nutrients, organic matter decomposition, soil organic carbon, and Greenhouse gas emissions (GHGs: CO2, N2O, and CH4) and are influenced by crop and soil management practices. The knowledge on the impact of conservation agriculture (CA) on soil bacterial diversity, nutrient availability, and GHG emissions in semiarid regions under rainfed conditions is vital to develop sustainable agricultural practices, but such information has not been systemically documented. Hence, studies were conducted for 10 years in rainfed pigeonpea (Cajanus cajan L.)-- castor bean (Ricinus communis L.) cropping system under semi-arid conditions to assess the effects of tillage and crop residue levels on the soil bacterial diversity, enzyme activity (Dehydrogenase, urease, acid phosphatase, and alkaline phosphatase), GHG emissions, and soil available nutrients (Nitrogen, phosphorus, and potassium). Sequencing of soil DNA through Illumina HiSeqbased 16S rRNA amplicon sequencing technology has revealed that bacterial community responded to both tillage and residue levels. The relative abundance of Actinobacteria in terms of Operational Taxonomic Unit (OTUs) at phyla, class as well as genera level was higher in CA (NTR1: No Tillage + 10 cm anchored residue and NTR2 NT + 30 cm anchored residue) over CT (conventional tillage without crop residues). CA resulted in higher enzyme activities (dehydrogenase, urease, acid phosphatase, and alkaline phosphatase) and reduction in GHG emissions over CT. CA recorded 34% higher and 3% lower OC, as compared to CT, and CTR1, respectively. CA recorded 10, 34, and 26% higher available nitrogen, phosphorus, and potassium over CT and CTR1, respectively. NTR1 recorded 25 and 38% lower N2O emissions as compared to CTR1 and CTR2, respectively. Whereas only NT recorded 12% higher N2O emissions as compared to CT. Overall, the results of the study indicate that CA improves the relative abundance of soil bacterial communities, nutrient availability, and enzyme activities, and may help to contribute to the mitigation of climate change, and sustainability in rainfed areas. [ABSTRACT FROM AUTHOR]

Published
2023
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