T. S. N. Murthy

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Multi-band orthogonal frequency division multiplexing (MB-OFDM) is an efficient approach for ultrawideband (UWB). However, MB-OFDM is characterized by poor spectral properties that cause a high degree of spectral leakage and cyclic prefix symbol extension leads to a reduction of the bandwidth efficiency. Multicarrier transmission schemes without cyclic(More)
ABSTARCT This paper envisages the optimal setting of process parameters which influences the surface roughness during the machining operation of En 41B alloy steel with cermet tool. Experiments have been carried out by using Taguchi design. The surface roughness is considered as quality characteristic while the process parameters considered are speed, feed(More)
When the former method is employed for production, enriched uranium irradiated for 2-3 weeks in the nuclear reactor is dissoivoc! in nitric acid and the iodine-131 is distilled and collected. '*) But separation of iodine-1 31 from pile irradiated tellurium targets is the most commonly used method of production. The methods <d Reparation varies for different(More)
Flat bones of human skeleton were subjected to dynamic indentation with ball indenters. The impacted surface was studied under high magnification and also by using the technique of multiple beam interferometry. The impulse caused the pile up of material at a little distance from the edge of the indent. The diameter of indent is found to increase as fourth(More)
Multi-band orthogonal frequency division multiplexing (MB-OFDM) is an efficient approach for ultra-wideband (UWB). However, MB-OFDM is characterized by poor spectral properties that cause a high degree of spectral leakage and cyclic prefix symbol extension leads to a reduction of the bandwidth efficiency. Multicarrier transmission schemes without cyclic(More)
Carvedilol (BCS Class II drug) is a nonselective β-adrenergic blocking agent with α1-blocking activity and it is mainly used in the management of hypertension. Two commercial brands of carvedilol drug, of strength 12.5mg were used for the Invitro dissolution studies. In the present study four dissolution media [pH 1.2 (0.1 N Hcl), pH 4.5 Acetate buffer, pH(More)
Multi-band orthogonal frequency division multiplexing (MB-OFDM) is an efficient approach for ultra-wideband (UWB). However, MB-OFDM is characterized by poor spectral properties that cause a high degree of spectral leakage and cyclic prefix symbol extension leads to a reduction of the bandwidth efficiency. Hence, Multicarrier transmission like orthogonal(More)
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