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Controllability and Observability of Sylvester Matrix Dynamical Systems on Time Scales
Appa Rao, Bhogapurapu Venkata,Prasad, Krosuri Anjaneya Siva Naga Vara Department of Mathematics 2016 Kyungpook mathematical journal Vol.56 No.2
In this paper, we obtain solution for the first order matrix dynamical system and also we provide set of necessary and sufficient conditions for complete controllability and complete observability of the Sylvester matrix dynamical system.
A Tool for Pair-Wise Alignment Algorithm
Allam Appa Rao KINFORMS 2007 Management Review Vol.2 No.1
Bioinformatics is the application of computational techniques to the management and analysis of biological information. The relationship between a query sequence, commonly termed as probe and o he sequence, known as subject can be quantified and their similarity can be assessed. This similarity can be used to identify the evolutionary relationship between a newly determined sequence and a known gene family. When the degree of similarity is low, the relationship must remain competitive, until eviden e ha be ngath r d. The purpose of this research is to implement various methods for Pair-Wise alignment t chniques and d sign a to l with a good user -interface for aligning two sequences and output the score of the alignment. Thi r sea h u e the va iou pair wis alignment algorithms, like Needleman-Wunsch global alignment, Smith-Waterman algorithm to find the optimum alignment(including gaps) of two sequences. Dynamic programming methods ensure the optimal global alignment by exploring all possible alignments and choosing the best. The user will be p vided a good user-interface for giving the input sequences and opting for the required algorithm. The algorithm uses the BLOSUM50 substitution matrix for computation, and outputs the Functional mat ix(F-mat ix), Optimal Alignment and the score. The total alignment score is calculated as a function of the identity between the aligned residues and the gap penalties incurred. The input sequences can be taken from a file stored on the disk.
Rama Mohan Rao, A.,Appa Rao, T.V.S.R.,Dattaguru, B. Techno-Press 2002 Structural Engineering and Mechanics, An Int'l Jou Vol.14 No.6
Parallel execution of computational mechanics codes requires efficient mesh-partitioning techniques. These mesh-partitioning techniques divide the mesh into specified number of submeshes of approximately the same size and at the same time, minimise the interface nodes of the submeshes. This paper describes a new mesh partitioning technique, employing Genetic Algorithms. The proposed algorithm operates on the deduced graph (dual or nodal graph) of the given finite element mesh rather than directly on the mesh itself. The algorithm works by first constructing a coarse graph approximation using an automatic graph coarsening method. The coarse graph is partitioned and the results are interpolated onto the original graph to initialise an optimisation of the graph partition problem. In practice, hierarchy of (usually more than two) graphs are used to obtain the final graph partition. The proposed partitioning algorithm is applied to graphs derived from unstructured finite element meshes describing practical engineering problems and also several example graphs related to finite element meshes given in the literature. The test results indicate that the proposed GA based graph partitioning algorithm generates high quality partitions and are superior to spectral and multilevel graph partitioning algorithms.
CONTROLLABILITY, OBSERVABILITY, AND REALIZABILITY OF MATRIX LYAPUNOV SYSTEMS
Murty M.S.N.,Rao B.V. Appa,Kumar G. Suresh Korean Mathematical Society 2006 대한수학회보 Vol.43 No.1
This paper presents necessary and sufficient conditions for complete controllability, complete observability and realizability associated with matrix Lyapunov systems under certain smoothness conditions.
Controllability, observability, andrealizability of matrix Lyapunov systems
M. S. N. Murty,B. V. Appa Rao,G. Suresh Kumar 대한수학회 2006 대한수학회보 Vol.43 No.1
This paper presents necessary and sufficient conditions forcomplete controllability, complete observability and realizabilityassociated with matrix Lyapunov systems under certain smoothness conditions.
C21 Pregnane Steroid from Caralluma umbellata (Asclepiadaceae)
Ramesh Mullangi,Bobbala Ravi Kumar,Chandrakanth Kokate,Sama Venkatesh,A.V.N. Appa Rao 한국생약학회 2005 Natural Product Sciences Vol.11 No.2
A C21 steroid has been isolated from the whole plants of Caralluma umbellata (Asclepiadaceae) andits structure was unambiguously asigned by spectroscopy.
Cracking in reinforced concrete flexural members - A reliability model
Rao, K. Balaji,Rao, T.V.S.R. Appa Techno-Press 1999 Structural Engineering and Mechanics, An Int'l Jou Vol.7 No.3
Cracking of reinforced concrete flexural members is a highly random phenomenon. In this paper reliability models are presented to determine the probabilities of failure of flexural members against the limit states of first crack and maximum crackwidth. The models proposed take into account the mechanism of cracking. Based on the reliability models discussed, Eqs. (8) and (9) useful in the reliability-based design of flexural members are presented.