61 resultados para Functional data analysis
Filtro por publicador
- Aberdeen University (1)
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- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (20)
- AMS Tesi di Laurea - Alm@DL - Università di Bologna (15)
- ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (3)
- Archimer: Archive de l'Institut francais de recherche pour l'exploitation de la mer (1)
- Archive of European Integration (1)
- Aston University Research Archive (41)
- Biblioteca de Teses e Dissertações da USP (5)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (22)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (79)
- Bioline International (2)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (53)
- Brock University, Canada (3)
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- Bucknell University Digital Commons - Pensilvania - USA (2)
- Bulgarian Digital Mathematics Library at IMI-BAS (8)
- CaltechTHESIS (1)
- CentAUR: Central Archive University of Reading - UK (37)
- CiencIPCA - Instituto Politécnico do Cávado e do Ave, Portugal (1)
- Cochin University of Science & Technology (CUSAT), India (5)
- Collection Of Biostatistics Research Archive (20)
- Comissão Econômica para a América Latina e o Caribe (CEPAL) (1)
- Consorci de Serveis Universitaris de Catalunya (CSUC), Spain (61)
- CORA - Cork Open Research Archive - University College Cork - Ireland (5)
- Corvinus Research Archive - The institutional repository for the Corvinus University of Budapest (2)
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- Dalarna University College Electronic Archive (6)
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- Digital Commons at Florida International University (13)
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- DigitalCommons@The Texas Medical Center (27)
- DigitalCommons@University of Nebraska - Lincoln (1)
- Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland (15)
- DRUM (Digital Repository at the University of Maryland) (3)
- Duke University (2)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (1)
- Illinois Digital Environment for Access to Learning and Scholarship Repository (2)
- Institutional Repository of Leibniz University Hannover (1)
- Instituto Nacional de Saúde de Portugal (1)
- Instituto Politécnico do Porto, Portugal (13)
- Iowa Publications Online (IPO) - State Library, State of Iowa (Iowa), United States (6)
- Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (1)
- Martin Luther Universitat Halle Wittenberg, Germany (1)
- Ministerio de Cultura, Spain (1)
- National Center for Biotechnology Information - NCBI (1)
- Publishing Network for Geoscientific & Environmental Data (46)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (4)
- RCAAP - Repositório Científico de Acesso Aberto de Portugal (1)
- ReCiL - Repositório Científico Lusófona - Grupo Lusófona, Portugal (1)
- Repositório Científico da Universidade de Évora - Portugal (1)
- Repositório Científico do Instituto Politécnico de Lisboa - Portugal (1)
- Repositório da Produção Científica e Intelectual da Unicamp (26)
- Repositório digital da Fundação Getúlio Vargas - FGV (6)
- Repositório Institucional da Universidade Estadual de São Paulo - UNESP (1)
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- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (69)
- Repositorio Institucional Universidad de Medellín (1)
- Research Open Access Repository of the University of East London. (1)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (22)
- SAPIENTIA - Universidade do Algarve - Portugal (1)
- Savoirs UdeS : plateforme de diffusion de la production intellectuelle de l’Université de Sherbrooke - Canada (1)
- Scielo Saúde Pública - SP (11)
- Scientific Open-access Literature Archive and Repository (2)
- Scottish Institute for Research in Economics (SIRE) (SIRE), United Kingdom (3)
- Universidad de Alicante (6)
- Universidad Politécnica de Madrid (10)
- Universidade Complutense de Madrid (1)
- Universidade do Minho (7)
- Universidade dos Açores - Portugal (5)
- Universidade Federal do Rio Grande do Norte (UFRN) (7)
- Universidade Técnica de Lisboa (1)
- Universita di Parma (2)
- Universitat de Girona, Spain (38)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (4)
- Université de Lausanne, Switzerland (42)
- Université de Montréal, Canada (11)
- University of Canberra Research Repository - Australia (2)
- University of Michigan (36)
- University of Queensland eSpace - Australia (33)
- University of Southampton, United Kingdom (7)
- University of Washington (8)
Resumo:
A new analytical method was developed to non-destructively determine pH and degree of polymerisation (DP) of cellulose in fibres in 19th 20th century painting canvases, and to identify the fibre type: cotton, linen, hemp, ramie or jute. The method is based on NIR spectroscopy and multivariate data analysis, while for calibration and validation a reference collection of 199 historical canvas samples was used. The reference collection was analysed destructively using microscopy and chemical analytical methods. Partial least squares regression was used to build quantitative methods to determine pH and DP, and linear discriminant analysis was used to determine the fibre type. To interpret the obtained chemical information, an expert assessment panel developed a categorisation system to discriminate between canvases that may not be fit to withstand excessive mechanical stress, e.g. transportation. The limiting DP for this category was found to be 600. With the new method and categorisation system, canvases of 12 Dalí paintings from the Fundació Gala-Salvador Dalí (Figueres, Spain) were non-destructively analysed for pH, DP and fibre type, and their fitness determined, which informs conservation recommendations. The study demonstrates that collection-wide canvas condition surveys can be performed efficiently and non-destructively, which could significantly improve collection management.