{"title":"Influence of Pixel Quality, Land Cover, and Hydroclimatic Cycle on Moderate Resolution Imaging Spectroradiometer Inundation Monitoring Performance in the Pantanal, Brazil","authors":"S. Silveira, Ibraim Fantin-Cruz, P. Zeilhofer","doi":"10.4236/gep.2023.112007","DOIUrl":"https://doi.org/10.4236/gep.2023.112007","url":null,"abstract":"","PeriodicalId":58477,"journal":{"name":"地球科学和环境保护期刊(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70597706","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}
{"title":"Potentiality of Solar Photovoltaic Energy in Paraiba, Brazil, and the Relation with Sustainable Development","authors":"J. D. R. L. Júnior, H. A. D. Almeida","doi":"10.4236/gep.2023.115008","DOIUrl":"https://doi.org/10.4236/gep.2023.115008","url":null,"abstract":"","PeriodicalId":58477,"journal":{"name":"地球科学和环境保护期刊(英文)","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70598732","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}
O. Awolesi, Natalie Matherne, Victoria Horton, Mattie Prosser, P. Oni, O. Lawal
{"title":"Understanding the Perceptions and Practices of Homeowners in the Event of Hurricane: A Case Study of University Employees in Louisiana","authors":"O. Awolesi, Natalie Matherne, Victoria Horton, Mattie Prosser, P. Oni, O. Lawal","doi":"10.4236/gep.2023.115015","DOIUrl":"https://doi.org/10.4236/gep.2023.115015","url":null,"abstract":"","PeriodicalId":58477,"journal":{"name":"地球科学和环境保护期刊(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70600703","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}
Jie Tan, Zhang Zhang, Tingli Li, Jingmin Guo, Mo Zhang
{"title":"Study on Remaining Oil at High Water Cut Stage of the Offshore Strong Bottom Water Reservoir","authors":"Jie Tan, Zhang Zhang, Tingli Li, Jingmin Guo, Mo Zhang","doi":"10.4236/gep.2023.116005","DOIUrl":"https://doi.org/10.4236/gep.2023.116005","url":null,"abstract":"","PeriodicalId":58477,"journal":{"name":"地球科学和环境保护期刊(英文)","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70605738","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}
J. F. Sabouang, J. F. B. Ateba, C. J. G. Shouop, Josué Maya, Cedric Tayou Kamkumo, Lawan Loubou Mohamadou, A. Simo
In this work the performance of a screening analytical method for Energy Dispersive X-Ray Fluorescence (EDXRF) analysis in terms of accuracy and precision was evaluated through analysis of rock standard reference materials. The method allowed the division of elements into four groups taking into account the excitation energies and measurement conditions of the sample. Two standard reference materials were used and 15 sample replicates were prepared and analyzed, then statistics were applied to assess the precision and accuracy of analytical results. The obtained results show that major compounds or elements (SiO 2 , P 2 O 5 , K 2 O, CaO, Fe 2 O 3 , Ti) can be determined in fine powder sample with a deviation lower than 15%, and a relative standard deviation in the range (1 - 10)%. The deviation was found to be lower than 5% for major compounds such as K 2 O, and CaO, which suggest that the EDXRF is accurate in evaluating major elemental concentrations in rock samples. It was also found that the method seems to be more accurate and precise for major elements than for trace element investigation. This screening analytical method can be used for routine analysis with acceptable results, even though the method should be optimized to increase its precision and accuracy.
{"title":"Accuracy and Precision of Energy Dispersive X-Ray Fluorescence (EDXRF) Analysis of Trace and Major Elements in Rock Standard Reference Materials Using Fine Powder","authors":"J. F. Sabouang, J. F. B. Ateba, C. J. G. Shouop, Josué Maya, Cedric Tayou Kamkumo, Lawan Loubou Mohamadou, A. Simo","doi":"10.4236/gep.2023.116006","DOIUrl":"https://doi.org/10.4236/gep.2023.116006","url":null,"abstract":"In this work the performance of a screening analytical method for Energy Dispersive X-Ray Fluorescence (EDXRF) analysis in terms of accuracy and precision was evaluated through analysis of rock standard reference materials. The method allowed the division of elements into four groups taking into account the excitation energies and measurement conditions of the sample. Two standard reference materials were used and 15 sample replicates were prepared and analyzed, then statistics were applied to assess the precision and accuracy of analytical results. The obtained results show that major compounds or elements (SiO 2 , P 2 O 5 , K 2 O, CaO, Fe 2 O 3 , Ti) can be determined in fine powder sample with a deviation lower than 15%, and a relative standard deviation in the range (1 - 10)%. The deviation was found to be lower than 5% for major compounds such as K 2 O, and CaO, which suggest that the EDXRF is accurate in evaluating major elemental concentrations in rock samples. It was also found that the method seems to be more accurate and precise for major elements than for trace element investigation. This screening analytical method can be used for routine analysis with acceptable results, even though the method should be optimized to increase its precision and accuracy.","PeriodicalId":58477,"journal":{"name":"地球科学和环境保护期刊(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70605752","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}
Wanderson Luiz‐Silva, Fabricio Polifke da Silva, C. Dereczynski, J. R. França
{"title":"Towards a Link between Climate Extremes and Thermodynamic Patterns in the City of Rio de Janeiro-Brazil: Climatological Aspects and Identified Changes","authors":"Wanderson Luiz‐Silva, Fabricio Polifke da Silva, C. Dereczynski, J. R. França","doi":"10.4236/gep.2023.118008","DOIUrl":"https://doi.org/10.4236/gep.2023.118008","url":null,"abstract":"","PeriodicalId":58477,"journal":{"name":"地球科学和环境保护期刊(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70610164","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}
Emeka Maduabuchi, J. Ugbebor, Gogomary Oyet Israel
{"title":"Needs and Challenges of Nigeria Petroleum Industry in Assessing Process Safety Cumulative Risk","authors":"Emeka Maduabuchi, J. Ugbebor, Gogomary Oyet Israel","doi":"10.4236/gep.2023.117013","DOIUrl":"https://doi.org/10.4236/gep.2023.117013","url":null,"abstract":"","PeriodicalId":58477,"journal":{"name":"地球科学和环境保护期刊(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70610545","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}
Ada Florence Ogli, M. Ahmed, A. Itodo, R. Wuana, R. Sha’Ato
{"title":"GIS Mapping, Biomonitoring and Distribution of Heavy Metal Concentrations Using Neem (<i>Azadirachta indica</i>) Bark in Makurdi Town, Benue State, Nigeria","authors":"Ada Florence Ogli, M. Ahmed, A. Itodo, R. Wuana, R. Sha’Ato","doi":"10.4236/gep.2023.117015","DOIUrl":"https://doi.org/10.4236/gep.2023.117015","url":null,"abstract":"","PeriodicalId":58477,"journal":{"name":"地球科学和环境保护期刊(英文)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70610566","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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