Pub Date : 2019-04-30DOI: 10.26438/ijsrpas/v7i2.108117
G. S. Somesha, Govindaraju, M. Vinaya, S. Govindaiah
Several pegmatite bodies of Precambrian age are located in and around the Holenarasipura and Karighatta schist belts of Hassan and Mandya districts respectively in the Dharwar Craton in Karnataka, These are ranging in size from few centimeters to more than 10 meters in width, with a maximum extension of about one kilometer. The pegmatites in the study area are of tabular, lensoidal and lenticular bodies, within the country rocks. Most of the pegmatites are found to be as concordant and few are discordant type of intrusions. Based on the mineralogical assemblage, the pegmatites of the study area are classified into simple and complex pegmatites. The characterization has been made for pegmatites on the basis of their petrographic, modal analysis, X-ray diffraction studies and also by field observation. The modal analysis has shown that the pegmatites fall mainly in the field of alkali feldspar granite, granite and granodiorite in QAP diagram with an indication of feldspar-rich composition followed by quartz, muscovite, biotite, garnet, zircon and apatite in decreasing abundance throughout the area. KeywordsPegmatites, Petrography, X-ray diffraction, Modal analysis, Holenarasipura and Karighatta
{"title":"Mica bearing pegmatites of Holenarasipura and Karighatta Schist belts of Western Dharwar Craton, Karnataka, India.","authors":"G. S. Somesha, Govindaraju, M. Vinaya, S. Govindaiah","doi":"10.26438/ijsrpas/v7i2.108117","DOIUrl":"https://doi.org/10.26438/ijsrpas/v7i2.108117","url":null,"abstract":"Several pegmatite bodies of Precambrian age are located in and around the Holenarasipura and Karighatta schist belts of Hassan and Mandya districts respectively in the Dharwar Craton in Karnataka, These are ranging in size from few centimeters to more than 10 meters in width, with a maximum extension of about one kilometer. The pegmatites in the study area are of tabular, lensoidal and lenticular bodies, within the country rocks. Most of the pegmatites are found to be as concordant and few are discordant type of intrusions. Based on the mineralogical assemblage, the pegmatites of the study area are classified into simple and complex pegmatites. The characterization has been made for pegmatites on the basis of their petrographic, modal analysis, X-ray diffraction studies and also by field observation. The modal analysis has shown that the pegmatites fall mainly in the field of alkali feldspar granite, granite and granodiorite in QAP diagram with an indication of feldspar-rich composition followed by quartz, muscovite, biotite, garnet, zircon and apatite in decreasing abundance throughout the area. KeywordsPegmatites, Petrography, X-ray diffraction, Modal analysis, Holenarasipura and Karighatta","PeriodicalId":14348,"journal":{"name":"International Journal of Scientific Research in Physics and Applied Sciences","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72718397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-30DOI: 10.26438/ijsrpas/v7i2.16
V. Harshavardhan, R. J. Kumar, P. Nagaraju, Y. Vijayakuma
Received: 15/Feb/2019, Accepted: 12/Mar/2019, Online: 30/Apr/2019 Abstract—SnO2 nanostructured thin films were deposited on ultrasonically cleaned glass substrates at different substrate temperatures using the spray pyrolysis technique. The influence of substrate temperature on structural, morphological, electrical and optical properties of thin films have been investigated by X-ray diffraction (XRD), scanning electron microscopy(SEM), energy dispersive spectroscopy (EDAX), two probe method and UV-Vis spectroscopy respectively. It was found that the deposited thin films were showing a tetragonal structure with a preferred orientation along (200) direction. Scanning electron microscopy results have shown that the substrate temperature influenced the growth mechanism of the SnO2 thin films. Optical properties of thin films were analyzed by UV-Vis spectrophotometer. Optical band gap values were determined using Tauc extrapolation at different substrate temperatures. As the substrate temperature increased from 350 o C to 450 o C, optical band gap was found to increase from 3.14 eV to 3.67 eV. The figure of merit has been calculated from transmission spectra and the electrical properties are analysed and discussed.
{"title":"Influence of Substrate Temperature on Structural, Electrical and Optical Properties of Nanostructured SnO2 thin Films Deposited by Spray Pyrolysis Technique","authors":"V. Harshavardhan, R. J. Kumar, P. Nagaraju, Y. Vijayakuma","doi":"10.26438/ijsrpas/v7i2.16","DOIUrl":"https://doi.org/10.26438/ijsrpas/v7i2.16","url":null,"abstract":"Received: 15/Feb/2019, Accepted: 12/Mar/2019, Online: 30/Apr/2019 Abstract—SnO2 nanostructured thin films were deposited on ultrasonically cleaned glass substrates at different substrate temperatures using the spray pyrolysis technique. The influence of substrate temperature on structural, morphological, electrical and optical properties of thin films have been investigated by X-ray diffraction (XRD), scanning electron microscopy(SEM), energy dispersive spectroscopy (EDAX), two probe method and UV-Vis spectroscopy respectively. It was found that the deposited thin films were showing a tetragonal structure with a preferred orientation along (200) direction. Scanning electron microscopy results have shown that the substrate temperature influenced the growth mechanism of the SnO2 thin films. Optical properties of thin films were analyzed by UV-Vis spectrophotometer. Optical band gap values were determined using Tauc extrapolation at different substrate temperatures. As the substrate temperature increased from 350 o C to 450 o C, optical band gap was found to increase from 3.14 eV to 3.67 eV. The figure of merit has been calculated from transmission spectra and the electrical properties are analysed and discussed.","PeriodicalId":14348,"journal":{"name":"International Journal of Scientific Research in Physics and Applied Sciences","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83283296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-30DOI: 10.26438/ijsrpas/v7i2.118131
A. Mishra, S. Tewari
{"title":"Density functional theory approach towards bioactivity analysis of Isovallesiachotamine natural bio molecule","authors":"A. Mishra, S. Tewari","doi":"10.26438/ijsrpas/v7i2.118131","DOIUrl":"https://doi.org/10.26438/ijsrpas/v7i2.118131","url":null,"abstract":"","PeriodicalId":14348,"journal":{"name":"International Journal of Scientific Research in Physics and Applied Sciences","volume":"135 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73257635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-30DOI: 10.26438/ijsrpas/v7i2.1223
A. S. Meshram, Y. D. Tembhurkar, O. Chimankar
Received: 21/Mar/2019, Accepted: 11/Apr/2019, Online: 30/Apr/2019 AbstractSpray pyrolysis is one of the most convenient, economical, inexpensive and simple methods for depositing large area semiconducting thin films. Semiconducting ternary CuInS2 thin films have been deposited onto the glass substrate by varying substrate temperature from 275 0 C, at the interval of 25 to 350 0 C by using aqueous solution of Cupric chloride, Indium trichloride and thiourea of 0.02 M and Seems to be one of the more important parameters affecting the physical properties of the semiconductor. The lattice parameter a and c at room temperature of the tetragonal unit cell were calculated for all these samples by Bruker AXS D8 Advance X-ray diffraction (XRD) techniques with Cu Kα (wavelength = 1.5418 Å) radiation.Conductivity of thin films determined by Four Probe method and hot probe technique wasdetermined to exhibit ptype conductivity. Due to temperature effect, shows the atoms are arrange regular in compound of these samples prepared at various temperatures 250, 300 and 350 0 C. As the films are not doped intentionally defect observed in intrinsic nature operative to be produced by Sulphur interstitials. Grain sizes were studied by Scanning Electron Microscope.
{"title":"Variation of some physical properties of CuInS2 films by substrate temperature","authors":"A. S. Meshram, Y. D. Tembhurkar, O. Chimankar","doi":"10.26438/ijsrpas/v7i2.1223","DOIUrl":"https://doi.org/10.26438/ijsrpas/v7i2.1223","url":null,"abstract":"Received: 21/Mar/2019, Accepted: 11/Apr/2019, Online: 30/Apr/2019 AbstractSpray pyrolysis is one of the most convenient, economical, inexpensive and simple methods for depositing large area semiconducting thin films. Semiconducting ternary CuInS2 thin films have been deposited onto the glass substrate by varying substrate temperature from 275 0 C, at the interval of 25 to 350 0 C by using aqueous solution of Cupric chloride, Indium trichloride and thiourea of 0.02 M and Seems to be one of the more important parameters affecting the physical properties of the semiconductor. The lattice parameter a and c at room temperature of the tetragonal unit cell were calculated for all these samples by Bruker AXS D8 Advance X-ray diffraction (XRD) techniques with Cu Kα (wavelength = 1.5418 Å) radiation.Conductivity of thin films determined by Four Probe method and hot probe technique wasdetermined to exhibit ptype conductivity. Due to temperature effect, shows the atoms are arrange regular in compound of these samples prepared at various temperatures 250, 300 and 350 0 C. As the films are not doped intentionally defect observed in intrinsic nature operative to be produced by Sulphur interstitials. Grain sizes were studied by Scanning Electron Microscope.","PeriodicalId":14348,"journal":{"name":"International Journal of Scientific Research in Physics and Applied Sciences","volume":"281 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79043774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-30DOI: 10.26438/ijsrpas/v7i2.711
B. Dikshit
{"title":"Avoiding infinity in Quantum field theory without use of renormalization","authors":"B. Dikshit","doi":"10.26438/ijsrpas/v7i2.711","DOIUrl":"https://doi.org/10.26438/ijsrpas/v7i2.711","url":null,"abstract":"","PeriodicalId":14348,"journal":{"name":"International Journal of Scientific Research in Physics and Applied Sciences","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80302625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-30DOI: 10.26438/ijsrpas/v7i2.8588
R. Kumar
{"title":"Shape coexistence in near Magic shell nucleus 52Cr","authors":"R. Kumar","doi":"10.26438/ijsrpas/v7i2.8588","DOIUrl":"https://doi.org/10.26438/ijsrpas/v7i2.8588","url":null,"abstract":"","PeriodicalId":14348,"journal":{"name":"International Journal of Scientific Research in Physics and Applied Sciences","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82530517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-30DOI: 10.26438/ijsrpas/v7i2.3137
S. Senthilkumar, C. Raja, R. Manimekalai
{"title":"Growth and Characterization of Bio-semiorganic (Ficus religiosa Chlorophyll-a) Doped Potassium Dihydrogen orthophosphate (KDP) Crystal","authors":"S. Senthilkumar, C. Raja, R. Manimekalai","doi":"10.26438/ijsrpas/v7i2.3137","DOIUrl":"https://doi.org/10.26438/ijsrpas/v7i2.3137","url":null,"abstract":"","PeriodicalId":14348,"journal":{"name":"International Journal of Scientific Research in Physics and Applied Sciences","volume":"111 3S 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73434771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-30DOI: 10.26438/ijsrpas/v7i2.5561
S. Baglari, D. Sarkar
Received: 09/Mar/2019, Accepted: 04/Apr/2019, Online: 30/Apr/2019 AbstractThis paper reports the synthesis of Polyaniline-Silver (Pani/Ag) nanocomposites by an in-situ chemical polymerization method using ammonium persulphate (APS) as an oxidizing agent. The prepared Pani/Ag nanocomposite were characterized by XRD, EDAX, FESEM, TEM, TGA, UV-vis spectroscopy. The XRD patterns indicated that the crystalline phase of Ag is cubic with average crystallite size of 26 nm. UV–vis spectroscopy analysis indicated that the Ag nanoparticles have some effect on the Pani matrix. The TGA result showed that thermal stability of the nanocomposite was increased after incorporation of Ag nanoparticles. Pani/Ag nanocomposite showed superior DC conductivity when compared to pure Pani. The Pani/Ag nanocomposite also showed excellent chloroform sensing behaviour than pure Pani, which might be due to increase in the surface area of Pani in the presence of Ag nanoparticles.
{"title":"High Electrical Conductivity, Thermal Stability and Gas Sensing Studies on Silver-Polyaniline Nanocomposite","authors":"S. Baglari, D. Sarkar","doi":"10.26438/ijsrpas/v7i2.5561","DOIUrl":"https://doi.org/10.26438/ijsrpas/v7i2.5561","url":null,"abstract":"Received: 09/Mar/2019, Accepted: 04/Apr/2019, Online: 30/Apr/2019 AbstractThis paper reports the synthesis of Polyaniline-Silver (Pani/Ag) nanocomposites by an in-situ chemical polymerization method using ammonium persulphate (APS) as an oxidizing agent. The prepared Pani/Ag nanocomposite were characterized by XRD, EDAX, FESEM, TEM, TGA, UV-vis spectroscopy. The XRD patterns indicated that the crystalline phase of Ag is cubic with average crystallite size of 26 nm. UV–vis spectroscopy analysis indicated that the Ag nanoparticles have some effect on the Pani matrix. The TGA result showed that thermal stability of the nanocomposite was increased after incorporation of Ag nanoparticles. Pani/Ag nanocomposite showed superior DC conductivity when compared to pure Pani. The Pani/Ag nanocomposite also showed excellent chloroform sensing behaviour than pure Pani, which might be due to increase in the surface area of Pani in the presence of Ag nanoparticles.","PeriodicalId":14348,"journal":{"name":"International Journal of Scientific Research in Physics and Applied Sciences","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74847524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-30DOI: 10.26438/ijsrpas/v7i2.2730
H. I. Ikeri, A. Onyia, O. J. Vwavware
{"title":"The Dependence of Confinement Energy on the Size of Quantum Dots","authors":"H. I. Ikeri, A. Onyia, O. J. Vwavware","doi":"10.26438/ijsrpas/v7i2.2730","DOIUrl":"https://doi.org/10.26438/ijsrpas/v7i2.2730","url":null,"abstract":"","PeriodicalId":14348,"journal":{"name":"International Journal of Scientific Research in Physics and Applied Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83285718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-04-30DOI: 10.26438/ijsrpas/v7i2.7584
. K.Dhoot, Mukesh Vyas, D. H. Gadani, T. Pandit
{"title":"Dielectric response of sandstones of Rajasthan in the frequency range 200 MHz-20 GHz","authors":". K.Dhoot, Mukesh Vyas, D. H. Gadani, T. Pandit","doi":"10.26438/ijsrpas/v7i2.7584","DOIUrl":"https://doi.org/10.26438/ijsrpas/v7i2.7584","url":null,"abstract":"","PeriodicalId":14348,"journal":{"name":"International Journal of Scientific Research in Physics and Applied Sciences","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82381824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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