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Urban forest loss using a GIS-based approach and instruments for integrated urban planning:A case study of Jo?o Pessoa,Brazil

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Journal of Geographical Sciences 2021年第10期31卷 1529-1552页

作者： leandro ismael de azevedo lacerda JoséAugusto Ribeiro da SILVEIRA Celso Augusto Guimarães SANTOS Richarde Marques da SILVA Alexandro Medeiros SILVA Thiago Victor Medeiros do NASCIMENTO Edson Leite RIBEIRO Paulo Vitor Nascimento de FREITAS Federal University of Paraíba Laboratory of Urban and Built Environment-LAURBE58051-900 João PessoaParaíbaBrazil Federal University of Paraíba Department of Architecture and Urbanism58051-900 João PessoaPBBrazil Federal University of Paraíba Department of Civil and Environmental Engineering58051-900 João PessoaPBBrazil Federal University of Paraíba Department of Geosciences58051-900 João PessoaPBBrazil Ministry of Cities Setor de Autarquias SulQuadra 01Lote 01/06Bloco HEd.Telemundi II70070-010 BrasíliaDFBrazil

Urban forests play an important role in the thermal comfort and overall life of local populations in large-and medium-sized *** study analyzes urban forest loss and maps land use and land cover(LULC)changes between 1991 and 2018 by evaluating the use of urban planning instruments for the mitigation of urban forest loss in Jo?o Pessoa,*** this purpose,satellite-derived LULC images from 1991,2006,2010 and 2018 and data on urban forest loss areas obtained using the Google Earth Engine were *** addition,this paper also discusses the instruments used for integrated urban planning,which are(a)the legal sector,responsibility and nature;(b)the urban expansion process;and(c)the elements of urban *** results show a clear shift in land use in the study *** major changes in LULC classes occurred in urban areas and herbaceous vegetation,while the greatest loss was in arboreal/shrub ***,an increase in the pressure to occupy zones intended for environmental preservation could be *** results showed similar accuracies with other studies and more spatial *** characteristics of the patterns,traces,and hotspots of urban expansion and forest cover loss were *** highlighted the potential use of this proposed framework to be applied and validated in other parts of the world to help better understand and quantify various aspects of urban-related problems such as urban forest loss mapping using instruments for integrated urban planning and low-cost approaches.

关键词： integrated planning mapping thematic synthesis urban afforestation urban planning

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Early Failure detection in Power Transformers

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Journal of Power and Energy Engineering 2013年第5期1卷 30-40页

作者： Luiz Eduardo Borges da Silva Erik leandro Bonaldi Levy Ely de lacerda de Oliveira Germano Lambert-Torres Giscard F. C. Veloso ismael Noronha Felipe dos Santos Moreira José Nielze Caminha Itajuba Federal University Itajuba Brazil 2PS Solutions Itajuba Brazil 3Termopernambuco Thermal Power Plant Recife Brazil.

This paper presents equipment for early detection of failures in the insulation of power transformers, checking existing partial discharges inside. The equipment involves hardware, control and signal acquisition software, and signal analysis software. This equipment has a set of algorithms that were made with intelligent extraction techniques and interpretation of data. The degradation diagnosis of the equipment insulation is based on digital signal processing algorithms for extraction of features and also in artificial intelligence algorithms that allies a mining involving all the data linked to the equipment throughout its operating life can make an assessment of the operating conditions of the equipment and suggest interventions and provide an estimated time so that they have to be made.

关键词： Transformers Measuring System Signal Processing Partial Discharges Predictive Maintenance

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