Pub Date : 2019-01-01DOI: 10.13074/jent.2019.03.191340
R. N. R. Neelakantan
Natural disasters have become fast growing epidemics around the world in general, the disasters like earthquakes, landslides, floods, cyclones and other coastal hazards etc., are already crippling the development and growth of the country. In the recent decades, the “Earth Observing Satellites” which are producing unparallel pictures on various spectral, spatial and temporal resolutions, where as the fast emerging “Geospatial Technology” (GIS) has proved its credentials beyond doubt in storing, manipulating, modeling and visualizing various phenomena related to Earth System Dynamics. In this context, the present paper discusses to map the disasters like earthquakes, landslides, soil erosion, floods and cyclone on their pattern and spatial variation. The Geomatics based integrated terrain analysis, leading to the detection of landslide prone areas, causative factors, predictive models leading to the early warning system etc., Flood is yet another major disaster causing greater impediment to country, which are aspiring to grow faster. Though methodologies have been developed for flood hazard zonation mapping, the geomatics has not been utilized to its deserving levels. And concluded that the geospatial data bases which provide important inputs for studies in the emerging areas of environmental monitoring, global warming and climate change.
{"title":"Geoenvironment and Related Disasters - A Geospatial Approach","authors":"R. N. R. Neelakantan","doi":"10.13074/jent.2019.03.191340","DOIUrl":"https://doi.org/10.13074/jent.2019.03.191340","url":null,"abstract":"Natural disasters have become fast growing epidemics around the world in general, the disasters like earthquakes, landslides, floods, cyclones and other coastal hazards etc., are already crippling the development and growth of the country. In the recent decades, the “Earth Observing Satellites” which are producing unparallel pictures on various spectral, spatial and temporal resolutions, where as the fast emerging “Geospatial Technology” (GIS) has proved its credentials beyond doubt in storing, manipulating, modeling and visualizing various phenomena related to Earth System Dynamics. In this context, the present paper discusses to map the disasters like earthquakes, landslides, soil erosion, floods and cyclone on their pattern and spatial variation. The Geomatics based integrated terrain analysis, leading to the detection of landslide prone areas, causative factors, predictive models leading to the early warning system etc., Flood is yet another major disaster causing greater impediment to country, which are aspiring to grow faster. Though methodologies have been developed for flood hazard zonation mapping, the geomatics has not been utilized to its deserving levels. And concluded that the geospatial data bases which provide important inputs for studies in the emerging areas of environmental monitoring, global warming and climate change.","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"83 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87450192","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 new series of structurally diverse azo fused dipyrazolopyridines has been synthesized via one pot pseudo six component reaction of various substituted aryl azo-salicylaldehydes with ethyl acetoacetate, hydrazine hydrate and ammonium acetate using waste orange peel derived carbon modified sulfonic acid (C-SO3H) as a mild, efficient and inexpensive heterogeneous catalyst. The prepared catalyst was characterized by FT-IR, XRD, SEM, EDX and XPS studies. The catalytically synthesized compounds were characterized by FT-IR, H NMR and C NMR. Use of recyclable powder catalyst (C-SO3H) for the excellent yields with rapid formation of the targeted azo fused dipyrazolopyridines with simple work-up procedure are the notable advantages of this protocol.
{"title":"Synthesis of Novel Azo Fused Dipyrazolopyridine Derivatives using Waste Orange Peel Derived C-SO3H Nano-Powder as an Efficient and Reusable Catalyst","authors":"Nagarajan Nagasundaram Nagarajan Nagasundaram, Sivagiri Sumitha Sivagiri Sumitha, Appaswami Lalitha Appaswami Lalitha","doi":"10.13074/jent.2019.12.194383","DOIUrl":"https://doi.org/10.13074/jent.2019.12.194383","url":null,"abstract":"A new series of structurally diverse azo fused dipyrazolopyridines has been synthesized via one pot pseudo six component reaction of various substituted aryl azo-salicylaldehydes with ethyl acetoacetate, hydrazine hydrate and ammonium acetate using waste orange peel derived carbon modified sulfonic acid (C-SO3H) as a mild, efficient and inexpensive heterogeneous catalyst. The prepared catalyst was characterized by FT-IR, XRD, SEM, EDX and XPS studies. The catalytically synthesized compounds were characterized by FT-IR, H NMR and C NMR. Use of recyclable powder catalyst (C-SO3H) for the excellent yields with rapid formation of the targeted azo fused dipyrazolopyridines with simple work-up procedure are the notable advantages of this protocol.","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79914108","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 : 2019-01-01DOI: 10.13074/jent.2019.09.193369
D. S. D. Selvakumari, Nazarene Simon Nazarene Simon, Valarishisha Khrshiing Valarishisha Khrshiing, V. M. V. Mahalakshmi
{"title":"Antibacterial Activity of Various ZnO Nanostructures on Pathogenic Bacteria Found in Selaiyur Lake, Tamil Nadu","authors":"D. S. D. Selvakumari, Nazarene Simon Nazarene Simon, Valarishisha Khrshiing Valarishisha Khrshiing, V. M. V. Mahalakshmi","doi":"10.13074/jent.2019.09.193369","DOIUrl":"https://doi.org/10.13074/jent.2019.09.193369","url":null,"abstract":"","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"BME-18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72613004","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 : 2019-01-01DOI: 10.13074/jent.2019.12.194384
S. S. S. Sumathi, J. S. J. Shakina
{"title":"Synthesis and Thermal Characterization Of Polyurethanes Obtained From Linseed and Oliveoil-Based Polyols","authors":"S. S. S. Sumathi, J. S. J. Shakina","doi":"10.13074/jent.2019.12.194384","DOIUrl":"https://doi.org/10.13074/jent.2019.12.194384","url":null,"abstract":"","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88063812","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 : 2019-01-01DOI: 10.13074/jent.2019.12.194386
T. P. D. T. Praveen Dhar
{"title":"Oligodynamic Effects Copper Against Water Borne Pathogens","authors":"T. P. D. T. Praveen Dhar","doi":"10.13074/jent.2019.12.194386","DOIUrl":"https://doi.org/10.13074/jent.2019.12.194386","url":null,"abstract":"","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86134550","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 : 2019-01-01DOI: 10.13074/jent.2019.03.191356
P. T. P. Thanapackiam, E. P. S. E. P. Subramaniam
{"title":"Corrosion Inhibition of Copper in Acid Media using Sparfloxacin - Electrochemical Study","authors":"P. T. P. Thanapackiam, E. P. S. E. P. Subramaniam","doi":"10.13074/jent.2019.03.191356","DOIUrl":"https://doi.org/10.13074/jent.2019.03.191356","url":null,"abstract":"","PeriodicalId":36296,"journal":{"name":"Journal of Water and Environmental Nanotechnology","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84718109","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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