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- 저자 : P. Anandan (검색결과 5 건)
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N. Pugazhenthiran,S. Murugesan,H. Valdés,M. Selvaraj,P. Sathishkumar,P.G. Smirniotis,S. Anandan,R.V. Mangalaraja 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.105 No.-
In this study, 250 nm sized porous anatase TiO2 nanospheres (TiO2 NSPs) composed of 10 nm sized anataseTiO2 nanoparticles are obtained through a green synthetic route and their surfaces have been decoratedwith 3–4 nm sized plasmonic silver nanoparticles (AgNPs). Photoluminescence studies confirm thatthe AgNPs presence on TiO2 NSPs surface effectively inhibits the radiative charge recombination and thusfacilitates charge separation process at the Ag-TiO2 NSPs interface, causing an enhanced photocatalyticactivity. About 92% of the ceftiofur sodium (CFS) antibiotic taken initially is oxidized by Ag-TiO2 NSPsupon 90 min white light irradiation, while Ag loaded Degussa P25 TiO2 nanoparticles effects only 71%CFS oxidation. The synergistic effect given by plasmonic AgNPs and the continuous framework of anataseTiO2 NPs contributes to inhibit the electron-hole recombination in the Ag-TiO2 NSPs. Oxidation productsof CFS in different water sources and their eco-toxicity effects identified through LC-MS and microtoxbioassays,respectively, indicate that the obtained oxidation products are non-toxic compared to pureCFS. Therefore, porous Ag-TiO2 NSPs could be successfully applied in photocatalytic oxidation technologies,exploiting sunlight for the effective removal of pharmaceutical pollutants from wastewater.
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P. Anandan,N. Mohankumar 대한전기학회 2014 Journal of Electrical Engineering & Technology Vol.9 No.4
The low frequency noise in Silicon Nanowire Field Effect Transistors is analyzed by characterizing the gate electrode dependence on various geometrical parameters. It shows that gate electrodes have a strong impact in the flicker noise of Silicon Nanowire Field effect transistors. Optimization of gate electrode was done by comparing different performance metrics such a DIBL, SS, Ion / Ioff and fringing capacitance using TCAD simulations. Molybdenum based gate electrode showed significant improvement in terms of high drive current, Low DIBL and high Ion/Ioff. The noise power sepctral density is reduced by characterizing the device at higher frequencies. Silicon Nanowire with Si3N4 spacer decreases the drain current spectral density which interms reduces the fringing fields there by decreasing the flicker noise.
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Anandan, P.,Mohankumar, N. The Korean Institute of Electrical Engineers 2014 Journal of Electrical Engineering & Technology Vol.9 No.4
The low frequency noise in Silicon Nanowire Field Effect Transistors is analyzed by characterizing the gate electrode dependence on various geometrical parameters. It shows that gate electrodes have a strong impact in the flicker noise of Silicon Nanowire Field effect transistors. Optimization of gate electrode was done by comparing different performance metrics such a DIBL, SS, $I_{on}/I_{off}$ and fringing capacitance using TCAD simulations. Molybdenum based gate electrode showed significant improvement in terms of high drive current, Low DIBL and high $I_{on}/I_{off}$. The noise power sepctral density is reduced by characterizing the device at higher frequencies. Silicon Nanowire with Si3N4 spacer decreases the drain current spectral density which interms reduces the fringing fields there by decreasing the flicker noise.
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R. Anandan,K.H. Sabeena Farvin,S. Hari Senthil Kumar,K.S. Shiny,Suseela Mathew,T.V. Sankar,P.G. Viswanathan Nair 한국식품영양과학회 2006 Journal of medicinal food Vol.9 No.4
We studied the cardioprotective effect of squalene on isoprenaline-induced myocardial infarction in male al-bino rats with respect to changes in the levels of lipid components in plasma and heart tissue. Prior administration of 2% squa-lene in feed for 45 days significantly reduced the isoprenaline-induced elevation in the levels of cholesterol, triglycerides, andfree fatty acids in plasma and heart tissue of rats following myocardial infarction. It exerted an anitlipidemic effect by re-ducing the level of low-density lipoprotein cholesterol with a parallel rise in the level of high-density lipoprotein cholesterolin plasma of experimental rats. A tendency to prevent the isoprenaline-induced depletion of phospholipids in the myocardiumof experimental rats was also observed. In the present study, the pretreatment with squalene significantly counteracted the iso-prenaline-induced lipid peroxidation and maintained the rats at near normal status. The results of the present study indicatethat the overall cardioprotective effect of squalene is probably related to an inhibition of lipid accumulation by its hypolipi-demic properties and/or its antioxidant properties.
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Effect of Mg/Co on the properties of CdS thin films deposited by spray pyrolysis technique
R. Murugesan,S. Sivakumar,K. Karthik,P. Anandan,M. Haris 한국물리학회 2019 Current Applied Physics Vol.19 No.10
Mg, Co doped and (Mg, Co) co-doped CdS thin films were prepared using chemical spray pyrolysis method. It is observed from the X-ray diffraction study that the deposited film exhibit cubic phase of CdS with preferred orientation along the (111) plane and incorporation of Mg and Co has been confirmed form energy dispersive analysis and XPS analysis as well. The doped and codoped CdS thin films exhibit 1LO and 2LO vibrations as confirmed by Raman spectrum. The core level XPS spectra ensures the incorporation of doping elements precisely. The morphological variations due to the incorporation of Co and Mg in CdS thin films have been observed by FE-SEM. The particle sizes and crystalline nature have been revealed from HRTEM images and corresponding SAED patterns. The co-doped CdS thin films show a significant shift blue in absorption spectrum. Improved magnetic properties have been observed for the co-doped CdS thin films
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