Pontryagin's principle is used to study the shape of the supersonic part of the nozzle of a carbon dioxide gas-dynamic laser whose gain is maximal. The exact shape is obtained for the uncoupled approximation of Anderson's bimodal model. In this case, if sharp corners are allowed, the ceiling of the supersonic part consists of a slant rectangular sheet followed by a horizontal one; otherwise...

This is an update containing small RNA sequences published during 1991. Approximately two hundred small RNA sequences are available in this and earlier compilations. The hard copy print out of this set will be available directly from us (inquiries should be addressed to R. Reddy). These files are also available on GenBank computer. Sequences from various sources covered in earlier compilations ...

Chilmula (Raj) Reddy, MD, Nephrology, Los Angeles Medical Center, has been caring for patients with Kaiser Permanente (KP) since 1972. Long before joining KP, however, Dr Reddy was living 9000 miles away in a poor farming village outside of Hyderabad, India. Dr Reddy is keenly aware that he did not make his journey alone, and he acknowledges that he would not be where he is today without the su...

One gives a recursive algorithm for the computation of the first and second order derivatives of the entropy of a periodic autoregressive process with respect to the autocovariances. It is an extension of the periodic LevinsonDurbin algorithm. The algorithm has been developed for use at one of the steps of an entropy maximization method developed by the authors. Numerical examples of entropy ma...

A new recursive eigendecomposition algorithm of Complex Hermitian Tœplitz matrices is studied. Based on Trench’s inversion of Tœplitz matrices from their autoregressive analysis, we have developed a fast recursive iterative algorithm that takes into account the rank-one modification of successive order Toeplitz matrices. To speed up the computational time and to increase numerical stability of ...

1 K.Raja Sekhara Reddy, 2 Dr.B.VenkataRamudu, and 3 Prof.A.Mallikarjuna Reddy 1 Assistant Professor, Dept. Of Mathematics, Govt. First Grade College, Pavagada , Karnataka-561202,India. 2 Assistant Professor, Dept. Of Statistics, SSBN Degree & P.G College,(Autonomous), Anantapuramu-515 001. (A.P )India. 3 Professor of Mathematics, Dept. Of Mathematics, S.K.University, Anantapuramu-515 001. (A.P ...

Explicit duration modeling has been shown to increase the eeectiveness of hidden Markov models in automatic speech recognition. Ferguson found the optimum parameters of the duration model for the case where duration is assumed to be distributed according to a non-parametric probability mass function. Levinson determined the best gamma density to model duration. In this paper, duration is assume...

Gregory Lapicki,* G. A. V. Ramana Murty, G. J. Naga Raju, B. Seetharami Reddy, S. Bhuloka Reddy, and V. Vijayan Department of Physics, East Carolina University, Greenville, North Carolina 27858, USA Swami Jnanananda Laboratories for Nuclear Reasearch, Andhra University, Visakhapatnam-530 003, India Institute of Physics, Sachivalaya Marg, Bhubaneswar-751 005, India (Received 9 February 2004; pub...