S. M. Meena

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An isocratic reversed-phase high-performance liquid chromatographic method has been developed for separation and simultaneous determination of COX-2 inhibitors, viz., celecoxib, rofecoxib, valdecoxib, nimesulide and nabumetone, using 4-chloro-2-nitroaniline as internal standard. Good chromatographic separation was achieved using a reversed-phase Inertsil(More)
Nowadays, applications of Frequency Selective Surfaces (FSS) for radar absorbing materials (RAM) are increasing, but it is still a challenge to select a proper FSS for a particular material as well as the dimensions of FSS for optimized absorption. Therefore, in this paper an attempt has been made to optimize the dimensions of FSS for microwave absorbing(More)
In this paper we present two architectures based on the replication sort algorithm (RSA) and rank based network sorting algorithm (RBNS) for implementation of Rank order filer (ROF). This paper focuses on optimization strategies for sorting in terms of operating speed (throughput) and area (no. of comparators). The RSA algorithm achieves maximum throughput(More)
Face recognition involves the extraction of different features of human face and its classification for discriminating it from other persons. Face recognition is quite challenging task because faces are complex, multidimensional visual stimuli and also face recognition rate depends on variations in pose, expression, occlusion, resolution, and illumination.(More)
The Tyre tread pattern can be described as the systematic mesh of blocks, grooves and spaces, moles and channels drawn into the tread to improve its grip on the road. Tread is the topmost layer of any tyre which contacts on the road and it has its contribution towards mileage, traction, low noise and heat built up properties. It would be meaningful to(More)
Dimensionality reduction is vital in many fields, and alignment-based methods for nonlinear dimensionality reduction have become popular recently because they can map the highdimensional data into a low-dimensional subspace with the property of local isometry. However, the relationships between patches in original high-dimensional space cannot be ensured to(More)
In recent years, content based audio indexing has become the key research area, as the audio content defines the content more precisely and has comparatively subservient density. In this paper, we present conversion of audio books into textual information using CMU SPHINX-4 speech transcriber and efficient indexing of audio books using term(More)
Two new simple, selective, sensitive and economical methods (A and B) have been developed for the analysis of mefloquine hydrochloride in pure and pharmaceutical dosage form. The methods were based on ion-pair complexation between drug and dyes like metanil yellow and bromophenol blue at an optimum pH 2.8. The colored chromogens were measured at 410 nm(More)
A simple and rapid reversed-phase high-performance liquid-chromatographic method for the separation and determination of process-related impurities of celecoxib (CXB) in bulk drugs and pharmaceuticals was developed. The separation of impurities viz., 4-methylacetophenone (I), 1-(4-methylphenyl)-4,4,4-trifluorobutane-1,3-dione (II), 4-hydrazinobenzene(More)
Present day mobile phones have evolved as multimedia devices, where users can capture and store photos, videos on their mobile phones. As the amount of digital multimedia content expands, it becomes increasingly difficult to find specific images in the device, giving rise to problems of organization, storing and retrieval of images. To improve human access(More)