RMD Engineering College

About: RMD Engineering College is a based out in . It is known for research contribution in the topics: Cloud computing & Scheduling (computing). The organization has 349 authors who have published 446 publications receiving 2766 citations.

A state of the art review on the Internet of Things (IoT) history, technology and fields of deployment

Abstract: Internet and its applications have become an integral part of today's human lifestyle It has become an essential tool in every aspect Due to the tremendous demand and necessity, researchers went beyond connecting just computers into the web These researches led to the birth of a sensational gizmo, Internet of Things (IoT) Communication over the internet has grown from user — user interaction to device — device interactions these days The IoT concepts were proposed years back but still it's in the initial stage of commercial deployment Home automation industry and transportation industries are seeing rapid growth with IoT Yet not many articles have been published in this field of study This paper aims in structuring a state of the art review on IoT The technology, history and applications have been discussed briefly along with various statistics

Li doped and undoped ZnO nanocrystalline thin films: a comparative study of structural and optical properties

Abstract: Thin films of ZnO were grown by the sol–gel method using spin-coating technique on (0001) sapphire substrates. The effect of doping after annealing on the structural and optical properties has been investigated by means of X-ray diffraction (XRD), cathodoluminescence (CL) spectrum, scanning electron microscopy (SEM) and atomic force microscopy (AFM). The films that were dried at 623 K and then post annealed at 873 K showed (0002) as the predominant orientation. Two emission bands have been observed from CL spectrum. Lithium doped film shows shift in the near band edge UltraViolet emission peak and suppressed defect level emission peak in the visible range. SEM analysis of the films exhibits many spherical shaped nanoparticles. Roughness of the films determined using atomic force microscopy.

Growth and characterization of NLO active lithium sulphate monohydrate single crystals

Abstract: Single crystals of the NLO active lithium sulphate monohydrate were grown successfully by slow evaporation technique. The as-grown crystal was clear, transparent and the size of the crystal attained was 14 x 8 x 5 mm3 within a period of 4 weeks. The crystal was subjected to Fourier transform infrared spectroscopy (FTIR), Thermal analysis (TG/DTA), UV-Vis analysis, mechanical and dielectric studies. Theoretical calculations for band gap energy were made. An attempt was made to calculate polarizability by Penn analysis and compare with the traditional method and results are tabulated. (© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Optical and structural characterisation of zinc oxide thin films prepared by sol‐gel process

Abstract: Zinc oxide thin films have been prepared on different substrates by the sol-gel method using 2-methoxyethanol solution of zinc acetate dihydrate stabilized by monoethanolamine. The photoluminescence spectra of the films show the band-edge and sub-band transitions. The intensity of the band edge emission peak increases, while the intensity of the deep level emission peak decreases in the films coated on sapphire substrate. Transmittance spectra show that the films are transparent beyond 400 nm. The structural property of the films has been evaluated using X-ray diffraction. The X-ray peak intensity of the film (002) grown on sapphire substrate is higher than the films grown on glass and quartz substrates. The AFM images show improvement in the surface of the annealed films as compared to the as-grown ZnO films coated on sapphire substrates. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)