In the present work, the effective degradation of a commonly used textile dyemethylene blue (MB) in the presence of photocatalyst was investigated under visible light irradation. For this, pd-doped WO3 nanoparticles were synthesized via rapid co-precipitation method. The obtained sample was characterized via powder X-Ray diffractometry for crystallinity analysis and phase structure, SEM for morphological analysis,UV-vis spectroscopy for optical studies. The diffraction peaks obtained from XRD pattern are highly intense that shows crystallinity of the sample (average crystallite size of NPs are ∼33 nm). The efficiency of degradation of the MB dye in the presence of W(0.99) Pd(0.01)O3 photocatalyst was (∼97% in 140 min) with rate constant (∼0.021831 min-1). This shows Pd-doped WO3 has high sensitivity to absorb visible light due to its small band gap (Eg∼2.45 eV).In the present work, the effective degradation of a commonly used textile dyemethylene blue (MB) in the presence of photocatalyst was investigated under visible light irradation. For this, pd-doped WO3 nanoparticles were synthesized via rapid co-precipitation method. The obtained sample was characterized via powder X-Ray diffractometry for crystallinity analysis and phase structure, SEM for morphological analysis,UV-vis spectroscopy for optical studies. The diffraction peaks obtained from XRD pattern are highly intense that shows crystallinity of the sample (average crystallite size of NPs are ∼33 nm). The efficiency of degradation of the MB dye in the presence of W(0.99) Pd(0.01)O3 photocatalyst was (∼97% in 140 min) with rate constant (∼0.021831 min-1). This shows Pd-doped WO3 has high sensitivity to absorb visible light due to its small band gap (Eg∼2.45 eV).
{"title":"Investigation of structural, optical and photocatalytic properties of W(0.99)Pd(0.01)O3 nanoparticles","authors":"Vijay Luxmi, Ashavani Kumar","doi":"10.1063/1.5122345","DOIUrl":"https://doi.org/10.1063/1.5122345","url":null,"abstract":"In the present work, the effective degradation of a commonly used textile dyemethylene blue (MB) in the presence of photocatalyst was investigated under visible light irradation. For this, pd-doped WO3 nanoparticles were synthesized via rapid co-precipitation method. The obtained sample was characterized via powder X-Ray diffractometry for crystallinity analysis and phase structure, SEM for morphological analysis,UV-vis spectroscopy for optical studies. The diffraction peaks obtained from XRD pattern are highly intense that shows crystallinity of the sample (average crystallite size of NPs are ∼33 nm). The efficiency of degradation of the MB dye in the presence of W(0.99) Pd(0.01)O3 photocatalyst was (∼97% in 140 min) with rate constant (∼0.021831 min-1). This shows Pd-doped WO3 has high sensitivity to absorb visible light due to its small band gap (Eg∼2.45 eV).In the present work, the effective degradation of a commonly used textile dyemethylene blue (MB) in the presence of photocatalyst was investigated under visible light irradation. For this, pd-doped WO3 nanoparticles were synthesized via rapid co-precipitation method. The obtained sample was characterized via powder X-Ray diffractometry for crystallinity analysis and phase structure, SEM for morphological analysis,UV-vis spectroscopy for optical studies. The diffraction peaks obtained from XRD pattern are highly intense that shows crystallinity of the sample (average crystallite size of NPs are ∼33 nm). The efficiency of degradation of the MB dye in the presence of W(0.99) Pd(0.01)O3 photocatalyst was (∼97% in 140 min) with rate constant (∼0.021831 min-1). This shows Pd-doped WO3 has high sensitivity to absorb visible light due to its small band gap (Eg∼2.45 eV).","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"97 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89267228","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}
The present study aims at the development and characterization of zinc oxide (ZnO) nanoparticles as a carrier for various anti-cancerous drugs viz. 5-Fluorouracil (5-FU), Doxorubicin (DOX) and Daunorubicin (DNR). ZnO nanoparticles were prepared by standard precipitation method. The measurement of optical band gap using UV-Visible Diffuse Reflectance Spectroscopy (DRS) analysis reveals the lowering of ZnO band gap after the drug loading. Crystallite size of free and drug loaded ZnO nanoparticles were determined using X-ray Diffraction (XRD) analysis. The crystallite size of ZnO nanoparticles increases after the drug loading. Both the techniques confirm the adsorption of drug molecules on ZnO surface.The present study aims at the development and characterization of zinc oxide (ZnO) nanoparticles as a carrier for various anti-cancerous drugs viz. 5-Fluorouracil (5-FU), Doxorubicin (DOX) and Daunorubicin (DNR). ZnO nanoparticles were prepared by standard precipitation method. The measurement of optical band gap using UV-Visible Diffuse Reflectance Spectroscopy (DRS) analysis reveals the lowering of ZnO band gap after the drug loading. Crystallite size of free and drug loaded ZnO nanoparticles were determined using X-ray Diffraction (XRD) analysis. The crystallite size of ZnO nanoparticles increases after the drug loading. Both the techniques confirm the adsorption of drug molecules on ZnO surface.
{"title":"Optical band gap and crystallite size investigations of anticancer drug loaded ZnO nanoparticles","authors":"Deepak Kumar, Samanwita Pal","doi":"10.1063/1.5122627","DOIUrl":"https://doi.org/10.1063/1.5122627","url":null,"abstract":"The present study aims at the development and characterization of zinc oxide (ZnO) nanoparticles as a carrier for various anti-cancerous drugs viz. 5-Fluorouracil (5-FU), Doxorubicin (DOX) and Daunorubicin (DNR). ZnO nanoparticles were prepared by standard precipitation method. The measurement of optical band gap using UV-Visible Diffuse Reflectance Spectroscopy (DRS) analysis reveals the lowering of ZnO band gap after the drug loading. Crystallite size of free and drug loaded ZnO nanoparticles were determined using X-ray Diffraction (XRD) analysis. The crystallite size of ZnO nanoparticles increases after the drug loading. Both the techniques confirm the adsorption of drug molecules on ZnO surface.The present study aims at the development and characterization of zinc oxide (ZnO) nanoparticles as a carrier for various anti-cancerous drugs viz. 5-Fluorouracil (5-FU), Doxorubicin (DOX) and Daunorubicin (DNR). ZnO nanoparticles were prepared by standard precipitation method. The measurement of optical band gap using UV-Visible Diffuse Reflectance Spectroscopy (DRS) analysis reveals the lowering of ZnO band gap after the drug loading. Crystallite size of free and drug loaded ZnO nanoparticles were determined using X-ray Diffraction (XRD) analysis. The crystallite size of ZnO nanoparticles increases after the drug loading. Both the techniques confirm the adsorption of drug molecules on ZnO surface.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89814631","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}
Vijender Singh, P. kharangarh, Parveen Kumar, D. Singh, Sanjay, A. Ghosh, Sanjay Kumar
Optical materials exhibiting a large third-order optical nonlinearity are in great demands because of their functional applications in optical limiting, optical switching, optical data storage etc. A well-known single Z-scan technique is employed to determine third-order nonlinear optical properties of nonlinear optical materials. Z-scan is a simple experimental technique to measure intensity dependent nonlinear susceptibilities of third-order nonlinear optical materials. It was originally introduced by Sheik Bahae et.al. In this technique, the sample is translated in the z-direction along the axis of a focused Gaussian beam, and the far field intensity is measured as function of sample position. Consequently, increases and decreases in the maximum intensity incident on the sample produce wavefront distortions created by nonlinear optical effects. This is a simple and sensitive single beam technique to measure the sign and magnitude of both real and imaginary part of the third order nonlinear susceptibility χ(3) of nonlinear optical materials.Optical materials exhibiting a large third-order optical nonlinearity are in great demands because of their functional applications in optical limiting, optical switching, optical data storage etc. A well-known single Z-scan technique is employed to determine third-order nonlinear optical properties of nonlinear optical materials. Z-scan is a simple experimental technique to measure intensity dependent nonlinear susceptibilities of third-order nonlinear optical materials. It was originally introduced by Sheik Bahae et.al. In this technique, the sample is translated in the z-direction along the axis of a focused Gaussian beam, and the far field intensity is measured as function of sample position. Consequently, increases and decreases in the maximum intensity incident on the sample produce wavefront distortions created by nonlinear optical effects. This is a simple and sensitive single beam technique to measure the sign and magnitude of both real and imaginary part of the third order nonlinear susceptibili...
{"title":"Measurements of third-order optical nonlinearity using Z-scan technique: A review","authors":"Vijender Singh, P. kharangarh, Parveen Kumar, D. Singh, Sanjay, A. Ghosh, Sanjay Kumar","doi":"10.1063/1.5122548","DOIUrl":"https://doi.org/10.1063/1.5122548","url":null,"abstract":"Optical materials exhibiting a large third-order optical nonlinearity are in great demands because of their functional applications in optical limiting, optical switching, optical data storage etc. A well-known single Z-scan technique is employed to determine third-order nonlinear optical properties of nonlinear optical materials. Z-scan is a simple experimental technique to measure intensity dependent nonlinear susceptibilities of third-order nonlinear optical materials. It was originally introduced by Sheik Bahae et.al. In this technique, the sample is translated in the z-direction along the axis of a focused Gaussian beam, and the far field intensity is measured as function of sample position. Consequently, increases and decreases in the maximum intensity incident on the sample produce wavefront distortions created by nonlinear optical effects. This is a simple and sensitive single beam technique to measure the sign and magnitude of both real and imaginary part of the third order nonlinear susceptibility χ(3) of nonlinear optical materials.Optical materials exhibiting a large third-order optical nonlinearity are in great demands because of their functional applications in optical limiting, optical switching, optical data storage etc. A well-known single Z-scan technique is employed to determine third-order nonlinear optical properties of nonlinear optical materials. Z-scan is a simple experimental technique to measure intensity dependent nonlinear susceptibilities of third-order nonlinear optical materials. It was originally introduced by Sheik Bahae et.al. In this technique, the sample is translated in the z-direction along the axis of a focused Gaussian beam, and the far field intensity is measured as function of sample position. Consequently, increases and decreases in the maximum intensity incident on the sample produce wavefront distortions created by nonlinear optical effects. This is a simple and sensitive single beam technique to measure the sign and magnitude of both real and imaginary part of the third order nonlinear susceptibili...","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72651044","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}
Gallenene (Ga100), a Ga-based 2D material, is a new member of nanomaterial family. Based on the density functional theory (DFT), we studied the adsorption energy, geometry, charge analysis and electronic structure of Na adatom on mono-layer Ga100. Na is an s valence alkali metal. We find the Na atom invoke an affluent diversity of structural, energetic and electronic properties. Our work demonstrates that Ga100 forms the strong bonds with Na atom. The adsorption energy of Na atom on Ga100 is more than on graphene. These results indicate that Na adsorbed Ga100 can be a promising material in the 2D family.Gallenene (Ga100), a Ga-based 2D material, is a new member of nanomaterial family. Based on the density functional theory (DFT), we studied the adsorption energy, geometry, charge analysis and electronic structure of Na adatom on mono-layer Ga100. Na is an s valence alkali metal. We find the Na atom invoke an affluent diversity of structural, energetic and electronic properties. Our work demonstrates that Ga100 forms the strong bonds with Na atom. The adsorption energy of Na atom on Ga100 is more than on graphene. These results indicate that Na adsorbed Ga100 can be a promising material in the 2D family.
{"title":"Adsorption of Na atom on mono-layer gallenene","authors":"Mohammad Ubaid, A. Aziz, B. Pujari","doi":"10.1063/1.5122481","DOIUrl":"https://doi.org/10.1063/1.5122481","url":null,"abstract":"Gallenene (Ga100), a Ga-based 2D material, is a new member of nanomaterial family. Based on the density functional theory (DFT), we studied the adsorption energy, geometry, charge analysis and electronic structure of Na adatom on mono-layer Ga100. Na is an s valence alkali metal. We find the Na atom invoke an affluent diversity of structural, energetic and electronic properties. Our work demonstrates that Ga100 forms the strong bonds with Na atom. The adsorption energy of Na atom on Ga100 is more than on graphene. These results indicate that Na adsorbed Ga100 can be a promising material in the 2D family.Gallenene (Ga100), a Ga-based 2D material, is a new member of nanomaterial family. Based on the density functional theory (DFT), we studied the adsorption energy, geometry, charge analysis and electronic structure of Na adatom on mono-layer Ga100. Na is an s valence alkali metal. We find the Na atom invoke an affluent diversity of structural, energetic and electronic properties. Our work demonstrates that Ga100 forms the strong bonds with Na atom. The adsorption energy of Na atom on Ga100 is more than on graphene. These results indicate that Na adsorbed Ga100 can be a promising material in the 2D family.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"91 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91169854","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}
The present study was undertaken to compare the chemical characterises of crude and refined edible vegetable oils viz. cotton, flaxseed, groundnut, soybean and mustard. The seeds were collected from farmer’s field at Hisar, Haryana and grounded to powder. Oil was extracted by Soxhlet method using petroleum ether (60-80°C) for 8 h. Solvent extraction processes include basically three steps: preparation, extraction, and desolventizing. Refining of oils was done by chemical method in different steps: degumming, neutralization, bleaching and deodorizing. Samples were studied for oxidative quality indices viz. free fatty acid, peroxide value, p-anisidine value, total oxidation value, conjugated dienes, carotenoid, total tocopherol, thiobarbituric acid value and fatty acid composition. Free fatty acid ranged from 0.9 to 3.49 (% as oleic acid) for crude oils and from 0.3 to 1.98 (% as oleic acid) for refined oils. Peroxide value ranged from 1.26 to 3.4 (meq/kg) for crude oils and for refined oil range was 0.92 t...
{"title":"Comparison of chemical characterises of crude and refined edible vegetable oils","authors":"A. Roshni","doi":"10.1063/1.5122391","DOIUrl":"https://doi.org/10.1063/1.5122391","url":null,"abstract":"The present study was undertaken to compare the chemical characterises of crude and refined edible vegetable oils viz. cotton, flaxseed, groundnut, soybean and mustard. The seeds were collected from farmer’s field at Hisar, Haryana and grounded to powder. Oil was extracted by Soxhlet method using petroleum ether (60-80°C) for 8 h. Solvent extraction processes include basically three steps: preparation, extraction, and desolventizing. Refining of oils was done by chemical method in different steps: degumming, neutralization, bleaching and deodorizing. Samples were studied for oxidative quality indices viz. free fatty acid, peroxide value, p-anisidine value, total oxidation value, conjugated dienes, carotenoid, total tocopherol, thiobarbituric acid value and fatty acid composition. Free fatty acid ranged from 0.9 to 3.49 (% as oleic acid) for crude oils and from 0.3 to 1.98 (% as oleic acid) for refined oils. Peroxide value ranged from 1.26 to 3.4 (meq/kg) for crude oils and for refined oil range was 0.92 t...","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85196599","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}
Triplex is short time vital structures of nucleic acidsformed in many biological processes. The study of triplex structure not only limited to explanation of vital processes but also extended up to its usefulness as biotechnical tools, gene-engineering and bio-nanotechnology. Such enormous application of triplex structure demands TFO(triplex-forming oligonucleotides) with greater binding affinity and stability. In this respect modification in oligonucleotides as LNA(Locked Nucleic Acids), locked sugar in RNA like C3’-endo conformation as RNA form more stable triplex but its application limited in biological environment due to blood clearance. Thus, here in this study, a 15-mer triplex was designed and molecular dynamics of 50ns run to see stability during simulation and QM/MM was done for triplet wise decomposition energy analysis with PM3 and PM6 methodology. The result of study exhibits that LNA triplets play essential role in the form of triplet and binds with greater affinity.Triplex is short time vital structures of nucleic acidsformed in many biological processes. The study of triplex structure not only limited to explanation of vital processes but also extended up to its usefulness as biotechnical tools, gene-engineering and bio-nanotechnology. Such enormous application of triplex structure demands TFO(triplex-forming oligonucleotides) with greater binding affinity and stability. In this respect modification in oligonucleotides as LNA(Locked Nucleic Acids), locked sugar in RNA like C3’-endo conformation as RNA form more stable triplex but its application limited in biological environment due to blood clearance. Thus, here in this study, a 15-mer triplex was designed and molecular dynamics of 50ns run to see stability during simulation and QM/MM was done for triplet wise decomposition energy analysis with PM3 and PM6 methodology. The result of study exhibits that LNA triplets play essential role in the form of triplet and binds with greater affinity.
{"title":"Triplet-wise computational analysis of recombinant triplex formed by LNA-TFO","authors":"V. Mall, R. P. Ojha, Vishnudatt Pandey, R. Tiwari","doi":"10.1063/1.5122639","DOIUrl":"https://doi.org/10.1063/1.5122639","url":null,"abstract":"Triplex is short time vital structures of nucleic acidsformed in many biological processes. The study of triplex structure not only limited to explanation of vital processes but also extended up to its usefulness as biotechnical tools, gene-engineering and bio-nanotechnology. Such enormous application of triplex structure demands TFO(triplex-forming oligonucleotides) with greater binding affinity and stability. In this respect modification in oligonucleotides as LNA(Locked Nucleic Acids), locked sugar in RNA like C3’-endo conformation as RNA form more stable triplex but its application limited in biological environment due to blood clearance. Thus, here in this study, a 15-mer triplex was designed and molecular dynamics of 50ns run to see stability during simulation and QM/MM was done for triplet wise decomposition energy analysis with PM3 and PM6 methodology. The result of study exhibits that LNA triplets play essential role in the form of triplet and binds with greater affinity.Triplex is short time vital structures of nucleic acidsformed in many biological processes. The study of triplex structure not only limited to explanation of vital processes but also extended up to its usefulness as biotechnical tools, gene-engineering and bio-nanotechnology. Such enormous application of triplex structure demands TFO(triplex-forming oligonucleotides) with greater binding affinity and stability. In this respect modification in oligonucleotides as LNA(Locked Nucleic Acids), locked sugar in RNA like C3’-endo conformation as RNA form more stable triplex but its application limited in biological environment due to blood clearance. Thus, here in this study, a 15-mer triplex was designed and molecular dynamics of 50ns run to see stability during simulation and QM/MM was done for triplet wise decomposition energy analysis with PM3 and PM6 methodology. The result of study exhibits that LNA triplets play essential role in the form of triplet and binds with greater affinity.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90286556","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}
A field experiment was conducted to study the persistence behaviour in tomato fruits and soil underneath and effect of processing on the reduction of residues of ready pre-mix formulation (Novaluron 5.25% + Indoxacarb 4.5% SC). Samples of tomato fruits and soil were collected periodically on 0 (1h), 1, 3, 5, 7, 10 and 15 days after applications. Residues were estimated by gas chromatography (GC) equipped with capillary column and electron capture detector (ECD). Per cent recoveries at the fortification levels of 0.01, 0.10 and 0.25 mg kg−1 in tomato fruits and at 0.01 and 0.05 mg kg−1 in soil were in the range of 82-94 per cent depicting validity of methods used for present studies. Limit of detection was 0.005 mg kg−1. Dissipation in tomato fruits followed first order kinetics with half life period from 1.40 - 2.48 days at both the doses of novaluron as well as indoxacarb. Residues decreased substantially during household processing among which peeling was found most effective which resulted 80-89 % reduction. For sandy loam soil under tomato crop, half-life period was found to be in the range of 0.63 to 2.17 days at single and double doses, respectively, for both novaluron as well as indoxacarb following first order kinetics. In leaching experiment carried out under laboratory conditions, 55 - 60% retention of novaluron and 70 - 75% retention of indoxacarb were observed up to 10 cm soil in both the doses, showing their very less mobility in soil. Residues were not detected after 40 cm depth of soil in both the doses. Since, residues of novaluron and indoxacarb were not detected in any of the leachate fractions of soil, hence, these may be safe for soil and ground water contamination.A field experiment was conducted to study the persistence behaviour in tomato fruits and soil underneath and effect of processing on the reduction of residues of ready pre-mix formulation (Novaluron 5.25% + Indoxacarb 4.5% SC). Samples of tomato fruits and soil were collected periodically on 0 (1h), 1, 3, 5, 7, 10 and 15 days after applications. Residues were estimated by gas chromatography (GC) equipped with capillary column and electron capture detector (ECD). Per cent recoveries at the fortification levels of 0.01, 0.10 and 0.25 mg kg−1 in tomato fruits and at 0.01 and 0.05 mg kg−1 in soil were in the range of 82-94 per cent depicting validity of methods used for present studies. Limit of detection was 0.005 mg kg−1. Dissipation in tomato fruits followed first order kinetics with half life period from 1.40 - 2.48 days at both the doses of novaluron as well as indoxacarb. Residues decreased substantially during household processing among which peeling was found most effective which resulted 80-89 % redu...
{"title":"Persistence and dissipation of ready pre-mix formulation (novaluron + indoxacarb) in/on tomato (Lycopersicon esculentum Mill.) and its leaching in soil","authors":"Anita, V. Madan","doi":"10.1063/1.5122390","DOIUrl":"https://doi.org/10.1063/1.5122390","url":null,"abstract":"A field experiment was conducted to study the persistence behaviour in tomato fruits and soil underneath and effect of processing on the reduction of residues of ready pre-mix formulation (Novaluron 5.25% + Indoxacarb 4.5% SC). Samples of tomato fruits and soil were collected periodically on 0 (1h), 1, 3, 5, 7, 10 and 15 days after applications. Residues were estimated by gas chromatography (GC) equipped with capillary column and electron capture detector (ECD). Per cent recoveries at the fortification levels of 0.01, 0.10 and 0.25 mg kg−1 in tomato fruits and at 0.01 and 0.05 mg kg−1 in soil were in the range of 82-94 per cent depicting validity of methods used for present studies. Limit of detection was 0.005 mg kg−1. Dissipation in tomato fruits followed first order kinetics with half life period from 1.40 - 2.48 days at both the doses of novaluron as well as indoxacarb. Residues decreased substantially during household processing among which peeling was found most effective which resulted 80-89 % reduction. For sandy loam soil under tomato crop, half-life period was found to be in the range of 0.63 to 2.17 days at single and double doses, respectively, for both novaluron as well as indoxacarb following first order kinetics. In leaching experiment carried out under laboratory conditions, 55 - 60% retention of novaluron and 70 - 75% retention of indoxacarb were observed up to 10 cm soil in both the doses, showing their very less mobility in soil. Residues were not detected after 40 cm depth of soil in both the doses. Since, residues of novaluron and indoxacarb were not detected in any of the leachate fractions of soil, hence, these may be safe for soil and ground water contamination.A field experiment was conducted to study the persistence behaviour in tomato fruits and soil underneath and effect of processing on the reduction of residues of ready pre-mix formulation (Novaluron 5.25% + Indoxacarb 4.5% SC). Samples of tomato fruits and soil were collected periodically on 0 (1h), 1, 3, 5, 7, 10 and 15 days after applications. Residues were estimated by gas chromatography (GC) equipped with capillary column and electron capture detector (ECD). Per cent recoveries at the fortification levels of 0.01, 0.10 and 0.25 mg kg−1 in tomato fruits and at 0.01 and 0.05 mg kg−1 in soil were in the range of 82-94 per cent depicting validity of methods used for present studies. Limit of detection was 0.005 mg kg−1. Dissipation in tomato fruits followed first order kinetics with half life period from 1.40 - 2.48 days at both the doses of novaluron as well as indoxacarb. Residues decreased substantially during household processing among which peeling was found most effective which resulted 80-89 % redu...","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81379814","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}
In the present paper, a known theorem of Nigam and Sharma (2011) dealing with the degree of approximation of a function belonging to Lip(ξ(t),r)-class by (N, p, q)(E,1) product summability of Fourier series has been generalized for the weighted W(Lr, ξ(t)) -class. Our result is in more general form of the theorem of Nigam and Sharma (2011).In the present paper, a known theorem of Nigam and Sharma (2011) dealing with the degree of approximation of a function belonging to Lip(ξ(t),r)-class by (N, p, q)(E,1) product summability of Fourier series has been generalized for the weighted W(Lr, ξ(t)) -class. Our result is in more general form of the theorem of Nigam and Sharma (2011).
{"title":"A study on degree of approximation of a function belonging to weighted W(Lr, ξ(t)) class by product summability of Fourier series","authors":"K. Sharma, S. Malik","doi":"10.1063/1.5122607","DOIUrl":"https://doi.org/10.1063/1.5122607","url":null,"abstract":"In the present paper, a known theorem of Nigam and Sharma (2011) dealing with the degree of approximation of a function belonging to Lip(ξ(t),r)-class by (N, p, q)(E,1) product summability of Fourier series has been generalized for the weighted W(Lr, ξ(t)) -class. Our result is in more general form of the theorem of Nigam and Sharma (2011).In the present paper, a known theorem of Nigam and Sharma (2011) dealing with the degree of approximation of a function belonging to Lip(ξ(t),r)-class by (N, p, q)(E,1) product summability of Fourier series has been generalized for the weighted W(Lr, ξ(t)) -class. Our result is in more general form of the theorem of Nigam and Sharma (2011).","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90876767","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}
In this research article, we present spectrally accurate time-space pseudospectral method to approximate the solution of one-dimensional Sine/Klein-Gordon equations. The proposed method is implemen...
本文提出了一维正弦/克莱因-戈登方程近似解的光谱精度时空伪谱方法。所提出的方法得到了实现。
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Neelam Berwal, N. Ahlawat, D. Mohan, R. Punia, N. Kishore
In present study, quaternary bismuth borosilicate tellurite glass system with compositions x SiO2-(80-x) Bi2O3-15 B2O3-5TeO2 (x = 0, 5, 10 and 15) has been successfully prepared by melt-quenching technique. The linear refractive index (n0) of prepared glass samples has been observed to decrease with increase in SiO2 content. Third order nonlinear optical properties viz. nonlinear refractive index (n2) and nonlinear absorption coefficient (β) have been estimated by fitting of experimentally observed closed and open aperture Z-scan measurements with theoretical models and found to be dependent on amount of silicate content in studied glass compositions. The third order nonlinear susceptibility (χ(3)) including real and imaginary parts have also been calculated.
{"title":"Non-linear optical properties of SiO2 modified Bi2O3-TeO2-B2O3 glass system","authors":"Neelam Berwal, N. Ahlawat, D. Mohan, R. Punia, N. Kishore","doi":"10.1063/1.5122538","DOIUrl":"https://doi.org/10.1063/1.5122538","url":null,"abstract":"In present study, quaternary bismuth borosilicate tellurite glass system with compositions x SiO2-(80-x) Bi2O3-15 B2O3-5TeO2 (x = 0, 5, 10 and 15) has been successfully prepared by melt-quenching technique. The linear refractive index (n0) of prepared glass samples has been observed to decrease with increase in SiO2 content. Third order nonlinear optical properties viz. nonlinear refractive index (n2) and nonlinear absorption coefficient (β) have been estimated by fitting of experimentally observed closed and open aperture Z-scan measurements with theoretical models and found to be dependent on amount of silicate content in studied glass compositions. The third order nonlinear susceptibility (χ(3)) including real and imaginary parts have also been calculated.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81620353","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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