Nanocrystalline Manganese Substituted Nickel Ferrite Thick Films as PPM Level H2S Gas Sensors

A simple sol-gel auto combustion technique is introduced for the synthesis of nanocrystalline manganese substituted nickel ferrite dry powders. These dry powders were mechano-chemically mixed with organic binders to prepare thixotropic pastes. Thixotropic pastes of as prepared ferrite powders were formulated and screen printed on glass substrates to form thick films, followed by firing at 450oC. The crystal structure, phase, surface morphology and topography of the samples were characterized by X-ray diffraction study, scanning electron microscopy, transmission electron microscopy, etc. The gas sensing behavior of the samples were characterized by exposing the films to various inflammable and toxic gases like LPG, NH3, CO2, ethanol, H2S and Cl2. It was found that the sensors made from the composition containing x=1.0, exhibits highly selective and most sensitive towards 20 ppm of H2S gas at 3500C. The effect of operating temperature, gas concentration, type of gases, etc. on gas response were studied and discussed. DOI: 10.17762/ijritcc2321-8169.15082

A Review of Self Healing Smart Grids Using the Multiagent System

This paper is trying review different techniques used for self healing of the smart grid network. A smart grid has taken a very high importance in the last ten years or so. Then the advancement in smart grid has taken a major importance. One of the most important aspects in the field of smart grid is a self healing of fault, and this attracted the researchers. As described in many research papers, one of the main requirements of the electrical grid is to maintain zero gap between generation and distribution [2, 3, 4]. However deregulation and decentralized generation has given with the information and communication technology (ICT). This paper will summarize latest available techniques for self healing smart grid

MODEL DESIGN AND SIMULATION OF AUTOMATIC COUNTING MACHINE USING PROXIMITY SENSOR

The project deals with the designing a system which will monitor a different aspects of the juice machine, more particularly quantity, quality, and output t i.e. packet of juice to reach a final destination through an aid of conveyor belt. The system is designed with the ultimate object that a packet of juice will be filled automatically and the number of juice packet will be get counted automatically. In order to reach a definite conclusion a system is also designed with the aid of different type of sensors like inductive, capacitive, Infrared (IR). The system is designed in a such a way that the desired object i.e. juice packet will passed through metal detector test so that ultimately it will be in a pure condition means without any metal particles

“WIRELESS BILLING TROLLEY”

Nowadays, in mall there are moe rush of peoples for shopping so there customers are collecting items and always compaire with budget. and then standing in queue for billing and that time customer waste there valuable time so overcome that problem we found new concept ”WIRELESS BILLING TROLLEY”

Interface Engineering Driven Stabilization of Halide Perovskites against Moisture, Heat, and Light for Optoelectronic Applications

Moisture, heat, and light instabilities of halide perovskites (HPs) represent a serious Achilles' heel that must be overcome, to enable future advancements in perovskite-based optoelectronic devices such as solar cells and light-emitting diodes. The instabilities are attributed to the unavoidable fragile ionic bonding between cationic and anionic parts of HPs during their formation. Surface passivation of HPs by various surface-passivating materials has proven to be an attractive approach to stabilize perovskites against moisture, heat, and light, keeping intact their structural integrity and ionic bonding. Herein, the experimental and theoretical background for degradation mechanisms of HPs is reviewed along with various surface passivating materials to stabilize HPs. Finally, the existing challenges associated with thin-film and device fabrication and an outlook for improving the stability of perovskites in optoelectronics are presente

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