R. R. Venkata Raju

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A GIS-based method is proposed for computation of temporal variation of sediment yield during isolated storm events. Data from three Indian catchments, namely Karso and Nagwa in Jharkhand and Kharkari in Rajasthan, have been used. The Integrated Land and Water Information System (ILW1S) GIS package was used for (a) catchment discretization into cell areas(More)
The project aims to study tensile softening behavior of fiber reinforced concrete .Concrete is very much weak in tension but by addition of randomly oriented short crimped steel fibers will change the behavior from brittle to ductile. In the present work, the steel fibers were added at the volume fraction, being 0%, 0.5%, 1%, 1.5% to the normal strength(More)
This paper investigates siltation problems in a 60 kilometer reach of Ibrahymia Canal in Upper Egypt. Compilation of field data and historical records indicated that the canal was influenced by human intervention and siltation which reduced the conveyance capacity of the canal. Flow rate and stage data along with the application of a one-dimensional(More)
A sensorless speed estimation scheme for a three phase squirrel cage induction machine is investigated in this paper. The Model Reference Adaptive Scheme (MRAS) based sensorless speed estimator uses the error in instantaneous reactive power for speed estimation. The Q-MRAS based method is computational simple and its closed loop nature reduces steady state(More)
The essential oil was obtained from the flowers of Curcuma neilgherensis, studied for antimicrobial activity, and characterized chemically. Curcuma neilgherensis Wt., (Zingiberaceae) is a wild turmeric species and is known as kondapasupu by the primitive tribes in the forested areas of Eastern Ghats, India. It is one of the endangered medicinal plants in(More)
To describe the synthetic strategy and structural characterization of certain novel spiro compounds containing thiazolidinone and 1,3,4-oxadiazole moieties and pertaining antimicrobial evaluation. Structural characterization was done based on elemental analysis, IR spectral, 1H NMR spectral and 13C NMR spectral data. The antimicrobial activity of the newly(More)