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Search Results: 1 - 10 of 139197 matches for " Mahanth K Gowda "
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Energy and Throughput Optimized, Cluster Based Hierarchical Routing Algorithm for Heterogeneous Wireless Sensor Networks  [PDF]
Mahanth K Gowda, K. K. Shukla
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2011, DOI: 10.4236/ijcns.2011.45038
Abstract: We propose a novel cluster based distributed routing algorithm in a generalized form for heterogeneous wireless sensor networks. Heterogeneity with respect to number/types of communication interfaces, their data rates and that with respect to energy dissipation model have been exploited for energy and throughput efficiency. The algorithm makes routing assignment optimized for throughput and energy and has a complexity of N/K*logN+k2logk approximately, where N is the number of nodes and k is the number of kcluster heads. Performance experiments confirm the effectiveness of throughput and energy optimizations. The importance of choosing an optimal cluster radius has been shown. The energy consumption in the network scales up well with respect to the network size.
Effect of Particulate Reinforcement on the Mechanical Properties of Al2024-WC MMCs  [PDF]
K. Punith Gowda, J. N. Prakash, Shivashankare Gowda, B. Satish Babu
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2015, DOI: 10.4236/jmmce.2015.36049
Abstract: The present work reveals the study of mechanical properties of Al2024-Tungsten carbide MMCs containing tungsten carbide (WC) particulates. The reinforcing particulates in the Al2024 alloy were varied from 0% to 5% by weight. The vortex method of cast production was employed to fabricate the MMCs, in which the reinforcement was poured into the vortex created by stirring the molten metal by means of a mechanical agitator. The composite so produced was subjected to a series of mechanical tests. The results of this study revealed that as the tungsten carbide particle content was increased, there were significant increases in the ultimate tensile strength, hardness and young’s modulus, compressive strength, accompanied by a reduction in its ductility. An attempt is made in the paper to provide explanations for these phenomena.
2,5-Dichloroanilinium 4-chlorobenzenesulfonate
K. Shakuntala,Sabine Foro,B. Thimme Gowda
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811010518
Abstract: In the crystal of the title compound, C6H6Cl2N+·C6H4ClO3S , the 2,5-dichloroanilinium cations and 4-chlorobenzenesulfonate anions are located on a crystallographic mirror plane and are connected by N—H...O hydrogen bonds. In the crystal, the connectivity of the hydrogen bonds leads to double chains propagating in [010].
4-Chloro-N-phenylbenzenesulfonamide
K. Shakuntala,Sabine Foro,B. Thimme Gowda
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811015108
Abstract: In the crystal of the title compound, C12H10ClNO2S, the asymmetric unit contains two independent molecules. The N—C bonds in the C—SO2—NH—C segments have gauche torsions with respect to the S=O bonds. The molecules are twisted at the S atoms with C—SO2—NH—C torsion angles of 53.8 (3) and 63.4 (3)° in the two molecules. The benzene rings are tilted relative to each other by 69.1 (1) and 82.6 (1)°. The dihedral angle between the sulfonyl benzene rings of the two independent molecules is 23.7 (2)°. The crystal structure features inversion-related dimers linked by N—H...O hydrogen bonds.
N-(2-Methylphenylsulfonyl)acetamide
K. Shakuntala,Sabine Foro,B. Thimme Gowda
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811014218
Abstract: In the molecular structure of the title compound, C9H11NO3S, the N—H and C=O bonds are anti to each other, while the amide H atom is syn with respect to the ortho-methyl group in the benzene ring. The C—S—N—C torsion angle is 58.2 (2)°, indicating a twist in the molecule. In the crystal, N—H...O hydrogen bonds link the molecules into chains along the c axis.
4-Chloro-N-(3-chlorophenyl)benzenesulfonamide
K. Shakuntala,Sabine Foro,B. Thimme Gowda
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811011366
Abstract: In the crystal of the title compound, C12H9Cl2NO2S, the molecule is twisted at the S atom with a C—SO2—NH—C torsion angle of 58.4 (3)°. Furthermore, the N—H bond in this segment is anti to the meta-chloro group. The dihedral angle between the aromatic rings is 77.1 (1)°. The crystal structure features inversion-related dimers linked by N—H...O hydrogen bonds.
N-(2-Chlorophenylsulfonyl)acetamide
K. Shakuntala,Sabine Foro,B. Thimme Gowda
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811012785
Abstract: The asymmetric unit of the title compound, C8H8ClNO3S, contains two independent molecules in which the C—S—N—C torsion angles are 71.7 (3) and 61.2 (3)°. The benzene rings and the SO2—NH—CO—C segments form dihedral angles of 80.2 (1) and 88.1 (2)° in the two independent molecules. In the crystal, intermolecular N—H...O hydrogen bonds link the molecules into chains in the b-axis direction.
N-(3,4-Dichlorophenyl)-4-methylbenzenesulfonamide
K. Shakuntala,Sabine Foro,B. Thimme Gowda
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536810051305
Abstract: In the title compound, C13H11Cl2NO2S, the conformation of the N—C bond in the C—SO2—NH—C segment has gauche torsions with respect to the S=O bonds. The molecule is bent at the S atom with a C—SO2—NH—C torsion angle of 64.3 (4)°. Furthermore, the conformation of the N—H bond and the meta-chloro group in the adjacent benzene ring are anti to each other. The two benzene rings are tilted relative to each other by 82.5 (1)°. In the crystal, molecules are linked by pairs of N—H...O(S) hydrogen bonds, forming inversion dimers.
2-Chloro-N-[(2-methylphenyl)sulfonyl]acetamide
K. Shakuntala,Sabine Foro,B. Thimme Gowda
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811003655
Abstract: In the title compound, C9H10ClNO3S, the amide H atom is syn with respect to the ortho-methyl group in the benzene ring and the C—S—N—C torsion angle is 66.9 (2)°. An intramolecular N—H...Cl hydrogen bond occurs. The crystal structure features inversion-related dimers linked by pairs of N—H...O hydrogen bonds.
N-(2,5-Dichlorophenyl)-4-methylbenzenesulfonamide
K. Shakuntala,Sabine Foro,B. Thimme Gowda
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536810050270
Abstract: In the title compound, C13H11Cl2NO2S, the N—C bond in the C—SO2—NH—C segment has gauche torsion angles with respect to the S=O bonds. The molecule is bent at the S atom with an C—SO2—NH—C torsion angle of 62.1 (2)°. Furthermore, the conformation of the N—H bond is syn to the ortho-chloro group in the adjacent benzene ring. The benzene rings are tilted by 67.8 (1)° relative to each other. The crystal structure features dimers linked by N—H...O hydrogen bonds. An intramolecular N—H...Cl hydrogen bond is also observed.
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