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- 저자 : Santhosh P.N. (검색결과 3 건)
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Spatial Analysis of Ground water and their treatment with Low-Cost Ceramic membrane
K. Santhosh Kumaar,N. Muralimohan,P. Kulanthaivel,S. Sathiskumar 한양대학교 청정에너지연구소 2022 Journal of Ceramic Processing Research Vol.23 No.6
Urbanisation is major reason for the contamination of Ground Water (GW) due to the movement of people from rural areato urban areas. The GW quality worsening due to the water security issues in Erode by the rapid growth of number of Tanneryand Dyeing industries around the city limits. These waters contain harmful chemicals and toxins which makes the water moredegrades the quality of water which affects the aquatic animals and plants. Now a days, People in urban cities are exposedto more polluted water without realizing its potential danger to health. The Spatial analysis of GW which is determined bythe values of pH, Turbidity, TDS, TSS, Alkalinity, Nitrate, Sulphate, Chlorides, Phosphates, Dissolved Oxygen, Chromium andLead and mapping done with sample taken from different locations. The intensity of the chemical parameters above thepermissible limits which cause disturbance in living beings. With the help of GIS technologies, identifies the areas where theground water quality is depleted more. The GW is treated with help of Ceramic membranes as it has good chemical stability,as heavy metal plays a major role in water treatment. Heavy metal ion separations from contaminated water are all discussedas low-cost ceramic membrane applications. This study highlights the upcoming technologies and hurdles of updating low-costceramic membranes that aid the treatment of water pollution levels at various sampling locations in Erode municipalcorporation with the goal of creating a water quality map identifying areas that are highly polluted using Arc GIS 10.3.
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Sathish K.V.,Sridhar K.N.,Seenappa L.,Manjunatha H.C.,Vidya Y.S.,Chinnappa Reddy B.,Manjunatha S.,Santhosh A.N.,Munirathnam R.,Raj Alfred Cecil,Damodara Gupta P.S.,Sankarshan B.M. 한국원자력학회 2023 Nuclear Engineering and Technology Vol.55 No.5
For the first time Aluminium-BariumeZinc oxide nanocomposite (ZABONC) was synthesized by solution combustion method where calcination was carried out at low temperatures (6000 C) to study the electromagnetic (EM) (X/g) radiation shielding properties. Further for characterization purpose standard techniques like PXRD, SEM, UV-VISIBLE, FTIR were used to find phase purity, functional groups, surface morphology, and to do structural analysis and energy band gap determination. The PXRD pattern shows (hkl) planes corresponding to spinel cubic phase of ZnAl2O4, cubic BaðNO3Þ2, a and g phase of Al2O3 which clearly confirms the formation of complex nano composite. From SEM histogram mean size of nano particles was calculated and is in the order of 17 nm. Wood and Tauc’s relation direct energy band gap calculation gives energy gap of 2.9 eV. In addition, EM (X/g) shielding properties were measured and compared with the theoretical ones using standard procedures (NaI (Tl) detector and multi channel analyzer MCA). For energy above 356 keV the measured shielding parameters agree well with the theory, while below this value slight deviation is observed, due to the influence of atomic/crystallite size of the ZABONC. Hence synthesized ZABONC can be used as a shielding material in EM (X/g) radiation shielding
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Wagh Aditya A.,Bhat Shwetha G.,Anusree V.K.,Santhosh P.N.,Elizabeth Suja,Kumar P.S. Anil 한국물리학회 2023 Current Applied Physics Vol.49 No.-
The rare-earth chromates, RECrO3 and manganites REMnO3 (RE = Eu, Y, Dy, Ho, Gd) are considered potential room temperature multiferroics. However, artefacts and undesirable signals pose a severe challenge in confirming the ferroelectric (FE) phase, especially in pyroelectric current measurement technique. We propose a simple modified approach to the technique, named as 4-segment thermal cycling protocol. This protocol assists in isolating the irreversible thermally stimulated current from those associated with spontaneous and reversible nature of the electric polarization in FE phase. Here, we have compared simulated response of two hypothetical materials; an FE material and a paraelectric material. Further, we experimentally verify the protocol in a single crystal of prototype FE material, Glycine Phosphite. Using the proposed protocol, we investigated polycrystalline materials, HoCrO3 (reported multiferroic earlier) and DyFe0.5Mn0.5O3. Our results expound on the absence of reversible spontaneous electric polarization in temperature ranges tested.
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