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This paper reports the study of the structural, morphological and magnetic properties of La0.67Sr0.33−xKxMnO3 (x=0–0.15) nanoparticles (NPs), prepared by sol gel method. The Rietveld analysis of the X–ray diffraction data was carried out for crystal structure refinement confirming the rhombohedral structure with R3¯C space group for all samples. From the results of transmission electron microscopy...
Wireless sensor network(WSN) deals with gathering information sensed in a specific region and transmitting it to the Base Station (BS) by using direct or multi hop communication. The key constraint of such network is energy consumption. Therefore it is important to design protocols that provide energy efficiency and robust wireless communication. The objective of this paper is to obtain time critical...
This paper reports the design and simulation of microelectromechanical (MEMS) piezoresistive accelerometer used in a strapdown inertial measurement unit (IMU) for detection of pathological tremor. There is a demand for high performance micromachined accelerometer to build a reliable tremor diagnostic system. The performance mainly depends on geometric design, device sensing mechanism with respect...
This paper reports the design and simulation of FEM based MEMS piezoresistive accelerometer used in a strap-down inertial measurement unit (IMU) for detection of postural tremor in Thyrotoxicosis. A square proofmass with four flexures is used in this design. Eight piezoresistors are implanted for sensing the maximum stress and they are connected in the form of a wheatstone bridge with each arm containing...
Inorganic selenium compounds in the diet have been known to protect against cancer in laboratory animals, but were harmful in high concentrations. In the present work, the relative effects of two salts, sodium selenite and sodium selenate, administered to mice in vivo, in different concentrations and durations of exposure, were compared. Aqueous solutions of each salt (7, 14, 21 and 28 mg Kg−1 bw)...
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