1 resultado para Index Terms|Digital Learning Objects|Interactivity
Filtro por publicador
- JISC Information Environment Repository (1)
- Abertay Research Collections - Abertay University’s repository (2)
- Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (1)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (8)
- AMS Tesi di Laurea - Alm@DL - Università di Bologna (2)
- Applied Math and Science Education Repository - Washington - USA (36)
- ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (1)
- Aston University Research Archive (10)
- Biblioteca de Teses e Dissertações da USP (2)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (3)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (18)
- Biblioteca Virtual del Sistema Sanitario Público de Andalucía (BV-SSPA), Junta de Andalucía. Consejería de Salud y Bienestar Social, Spain (4)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (8)
- Boston College Law School, Boston College (BC), United States (4)
- Brock University, Canada (15)
- Bucknell University Digital Commons - Pensilvania - USA (1)
- Bulgarian Digital Mathematics Library at IMI-BAS (17)
- CentAUR: Central Archive University of Reading - UK (27)
- CiencIPCA - Instituto Politécnico do Cávado e do Ave, Portugal (2)
- Cochin University of Science & Technology (CUSAT), India (3)
- Consorci de Serveis Universitaris de Catalunya (CSUC), Spain (81)
- Cor-Ciencia - Acuerdo de Bibliotecas Universitarias de Córdoba (ABUC), Argentina (1)
- CORA - Cork Open Research Archive - University College Cork - Ireland (2)
- CUNY Academic Works (2)
- Dalarna University College Electronic Archive (2)
- Digital Commons - Michigan Tech (2)
- Digital Commons @ DU | University of Denver Research (1)
- Digital Commons at Florida International University (12)
- Digital Peer Publishing (8)
- Diposit Digital de la UB - Universidade de Barcelona (2)
- Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (41)
- Escola Superior de Educação de Paula Frassinetti (2)
- Galway Mayo Institute of Technology, Ireland (1)
- Institute of Public Health in Ireland, Ireland (1)
- Instituto Politécnico de Bragança (1)
- Instituto Politécnico de Castelo Branco - Portugal (2)
- Instituto Politécnico de Viseu (2)
- Instituto Politécnico do Porto, Portugal (83)
- Iowa Publications Online (IPO) - State Library, State of Iowa (Iowa), United States (1)
- Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (1)
- Massachusetts Institute of Technology (2)
- Memoria Académica - FaHCE, UNLP - Argentina (4)
- Ministerio de Cultura, Spain (88)
- Open Access Repository of Association for Learning Technology (ALT) (4)
- Portal de Revistas Científicas Complutenses - Espanha (5)
- Portal do Conhecimento - Ministerio do Ensino Superior Ciencia e Inovacao, Cape Verde (1)
- Publishing Network for Geoscientific & Environmental Data (1)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (1)
- RDBU - Repositório Digital da Biblioteca da Unisinos (10)
- ReCiL - Repositório Científico Lusófona - Grupo Lusófona, Portugal (7)
- REPOSITÓRIO ABERTO do Instituto Superior Miguel Torga - Portugal (1)
- Repositório Alice (Acesso Livre à Informação Científica da Embrapa / Repository Open Access to Scientific Information from Embrapa) (1)
- Repositório Científico da Escola Superior de Enfermagem de Coimbra (3)
- Repositório Científico do Instituto Politécnico de Lisboa - Portugal (13)
- Repositório da Escola Nacional de Administração Pública (ENAP) (2)
- Repositório da Produção Científica e Intelectual da Unicamp (2)
- Repositório de Administração Pública (REPAP) - Direção-Geral da Qualificação dos Trabalhadores em Funções Públicas (INA), Portugal (1)
- Repositorio de la Universidad de Cuenca (1)
- Repositório digital da Fundação Getúlio Vargas - FGV (1)
- Repositório Digital da UNIVERSIDADE DA MADEIRA - Portugal (1)
- REPOSITORIO DIGITAL IMARPE - INSTITUTO DEL MAR DEL PERÚ, Peru (1)
- Repositório do Centro Hospitalar de Lisboa Central, EPE - Centro Hospitalar de Lisboa Central, EPE, Portugal (2)
- Repositório Institucional da Universidade de Aveiro - Portugal (4)
- Repositório Institucional da Universidade de Brasília (1)
- Repositório Institucional da Universidade Estadual de São Paulo - UNESP (1)
- Repositório Institucional da Universidade Federal do Rio Grande - FURG (2)
- Repositório Institucional da Universidade Tecnológica Federal do Paraná (RIUT) (2)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (50)
- Repositorio Institucional Universidad de Medellín (1)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (19)
- Savoirs UdeS : plateforme de diffusion de la production intellectuelle de l’Université de Sherbrooke - Canada (1)
- School of Medicine, Washington University, United States (20)
- Scielo Saúde Pública - SP (13)
- Scielo Uruguai (1)
- Universidad de Alicante (6)
- Universidad del Rosario, Colombia (41)
- Universidad Politécnica de Madrid (22)
- Universidade do Minho (15)
- Universidade dos Açores - Portugal (3)
- Universidade Federal de Uberlândia (1)
- Universidade Federal do Pará (1)
- Universidade Federal do Rio Grande do Norte (UFRN) (4)
- Universidade Metodista de São Paulo (3)
- Universidade Técnica de Lisboa (2)
- Universitat de Girona, Spain (33)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (5)
- Université de Lausanne, Switzerland (36)
- Université de Montréal, Canada (16)
- University of Michigan (13)
- University of Queensland eSpace - Australia (16)
- University of Southampton, United Kingdom (21)
- University of Washington (3)
- WestminsterResearch - UK (2)
- Worcester Research and Publications - Worcester Research and Publications - UK (5)
Resumo:
Digital soil mapping is an alternative for the recognition of soil classes in areas where pedological surveys are not available. The main aim of this study was to obtain a digital soil map using artificial neural networks (ANN) and environmental variables that express soillandscape relationships. This study was carried out in an area of 11,072 ha located in the Barra Bonita municipality, state of São Paulo, Brazil. A soil survey was obtained from a reference area of approximately 500 ha located in the center of the area studied. With the mapping units identified together with the environmental variables elevation, slope, slope plan, slope profile, convergence index, geology and geomorphic surfaces, a supervised classification by ANN was implemented. The neural network simulator used was the Java NNS with the learning algorithm "back propagation." Reference points were collected for evaluating the performance of the digital map produced. The occurrence of soils in the landscape obtained in the reference area was observed in the following digital classification: medium-textured soils at the highest positions of the landscape, originating from sandstone, and clayey loam soils in the end thirds of the hillsides due to the greater presence of basalt. The variables elevation and slope were the most important factors for discriminating soil class through the ANN. An accuracy level of 82% between the reference points and the digital classification was observed. The methodology proposed allowed for a preliminary soil classification of an area not previously mapped using mapping units obtained in a reference area