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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria Tropical. |
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Data corrente: |
01/09/2010 |
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Data da última atualização: |
09/05/2017 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
NORÕES, A. K. M.; NASCIMENTO, D. M.; MOTA, M. C. G.; SOUZA, N. F.; SOUZA FILHO, M. de S. M. de; MORAIS, J. P. S.; ROSA, M. de F. |
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Afiliação: |
Amanda Kelly Monteiro Norões, UFC; Diego Magalhães Nascimento, UFC; Morgana Cardoso Girão Mota, IFCE; Nágila Freitas Souza, IFCE; MEN DE SA MOREIRA DE SOUZA FILHO, CNPAT; JOAO PAULO SARAIVA MORAIS, CNPA; MORSYLEIDE DE FREITAS ROSA, CNPAT. |
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Título: |
Preparation and characterization of cellulose whiskers from palm, linter, bamboo and coconut fiber. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON FOOD AND AGRICULTURE APPLICATIONS OF NANOTECHNOLOGIES, 1., 2010, São Pedro. Resumos. São Pedro: Food and Agriculture Organization of the United Nations, 2010. |
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Páginas: |
1 CD-ROM. |
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Idioma: |
Inglês |
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Palavras-Chave: |
Cellulose whiskers; Coconut; Fibers. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/34606/1/RE10012.pdf
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Marc: |
LEADER 00790nam a2200217 a 4500
001 1861481
005 2017-05-09
008 2010 bl uuuu u00u1 u #d
100 1 $aNORÕES, A. K. M.
245 $aPreparation and characterization of cellulose whiskers from palm, linter, bamboo and coconut fiber.
260 $aIn: INTERNATIONAL CONFERENCE ON FOOD AND AGRICULTURE APPLICATIONS OF NANOTECHNOLOGIES, 1., 2010, São Pedro. Resumos. São Pedro: Food and Agriculture Organization of the United Nations$c2010
300 $a1 CD-ROM.
653 $aCellulose whiskers
653 $aCoconut
653 $aFibers
700 1 $aNASCIMENTO, D. M.
700 1 $aMOTA, M. C. G.
700 1 $aSOUZA, N. F.
700 1 $aSOUZA FILHO, M. de S. M. de
700 1 $aMORAIS, J. P. S.
700 1 $aROSA, M. de F.
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Registro original: |
Embrapa Agroindústria Tropical (CNPAT) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
08/06/2017 |
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Data da última atualização: |
14/06/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
LINARES, R.; SANTOS, H. C.; BRANDES, A. F. N.; BARROS, C. F.; LISI, C. S.; BALIEIRO, F. de C.; FARIA, S. M. de. |
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Afiliação: |
UFRJ; 2INFN, Laboratori Nazionali del Sud, IT; UFF; UFF; FABIANO DE CARVALHO BALIEIRO, CNPS; SERGIO MIANA DE FARIA, CNPAB. |
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Título: |
Exploring the 14c bomb peak with tree rings of tropical species from the Amazon Forest. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Radiocarbon, v. 59, n. 2, p 303-313, 2017. |
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DOI: |
DOI:10.1017/RDC.2017.10 |
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Idioma: |
Inglês |
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Notas: |
Edition of the Proceedings of the 22nd International Radiocarbon Conference, Dakar, Senegal, Nov. 2015. Selected Papers. |
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Conteúdo: |
In this work we explore the radiocarbon (14C) signal as an independent tool to assess the year of formation of individual tree rings of tropical species in northern Brazil. Three different species were analyzed in this work: Dipteryx magnifica, Enterolobium maximum, and Hymenolobium petraeum. The studied samples are from the stem of only one individual of each species, all cut down in 2008 in Porto Trombetas, Pará, Brazil. Individual tree rings were identified based on wood anatomy and they were counted from bark to pith. Several rings were selected for 14C analysis in order to cover the overall shape of the 14C atmospheric bomb peak (after 1955). The 14C content was measured at Laboratory of Radiocarbon, Universidade Federal Fluminense (LAC-UFF). Results are compared with the Southern Hemisphere 14C atmospheric calibration curves. For E. maximum and H. petraeum the 14C signal exhibits an overall good match with the SH zone 3 and suggests annual seasonality in the growth-ring formation. These species offer suitable characteristics for dendrochronology. The D. magnifica shows mismatches in the 14C measurements that are likely a result of difficulties in identifying ring boundaries with certainty. Additional techniques may be helpful to isentangle the origin of this discrepancy. |
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Palavras-Chave: |
Radiocarbon; Tropical species. |
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Thesaurus NAL: |
dendrochronology. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02114naa a2200253 a 4500
001 2070642
005 2017-06-14
008 2017 bl uuuu u00u1 u #d
024 7 $aDOI:10.1017/RDC.2017.10$2DOI
100 1 $aLINARES, R.
245 $aExploring the 14c bomb peak with tree rings of tropical species from the Amazon Forest.
260 $c2017
500 $aEdition of the Proceedings of the 22nd International Radiocarbon Conference, Dakar, Senegal, Nov. 2015. Selected Papers.
520 $aIn this work we explore the radiocarbon (14C) signal as an independent tool to assess the year of formation of individual tree rings of tropical species in northern Brazil. Three different species were analyzed in this work: Dipteryx magnifica, Enterolobium maximum, and Hymenolobium petraeum. The studied samples are from the stem of only one individual of each species, all cut down in 2008 in Porto Trombetas, Pará, Brazil. Individual tree rings were identified based on wood anatomy and they were counted from bark to pith. Several rings were selected for 14C analysis in order to cover the overall shape of the 14C atmospheric bomb peak (after 1955). The 14C content was measured at Laboratory of Radiocarbon, Universidade Federal Fluminense (LAC-UFF). Results are compared with the Southern Hemisphere 14C atmospheric calibration curves. For E. maximum and H. petraeum the 14C signal exhibits an overall good match with the SH zone 3 and suggests annual seasonality in the growth-ring formation. These species offer suitable characteristics for dendrochronology. The D. magnifica shows mismatches in the 14C measurements that are likely a result of difficulties in identifying ring boundaries with certainty. Additional techniques may be helpful to isentangle the origin of this discrepancy.
650 $adendrochronology
653 $aRadiocarbon
653 $aTropical species
700 1 $aSANTOS, H. C.
700 1 $aBRANDES, A. F. N.
700 1 $aBARROS, C. F.
700 1 $aLISI, C. S.
700 1 $aBALIEIRO, F. de C.
700 1 $aFARIA, S. M. de
773 $tRadiocarbon$gv. 59, n. 2, p 303-313, 2017.
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Embrapa Agrobiologia (CNPAB) |
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