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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
05/09/2018 |
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Data da última atualização: |
05/09/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
REIS, P. C. M. dos R.; SOUZA, A. L. de; REIS, L. P.; CARVALHO, A. M. M. L.; FREITAS, L. J. M. de; RÊGO, L. J. S.; LEITE, H. G. |
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Afiliação: |
Pamella Carolline Marques dos Reis Reis, UFV; Agostinho Lopes de Souza, UFV; Leonardo Pequeno Reis, Instituto de Desenvolvimento Sustentável Mamirauá; Ana Márcia Macedo Ladeira Carvalho, UFV; LUCAS JOSE MAZZEI DE FREITAS, CPATU; Lyvia Julienne Sousa Rêgo, UFV; Helio Garcia Leite, UFV. |
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Título: |
Artificial neural networks to estimate the physical-mechanical properties of amazon second cutting cycle wood. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Maderas. Ciencia y tecnología, v. 20, n. 3, p. 343-352, 2018. |
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DOI: |
10.4067/S0718-221X2018005003501 |
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Idioma: |
Inglês |
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Conteúdo: |
Timber from the second cutting cycle may make up the majority of future crop volumetric. However, there are few studies of the physical and mechanical properties of this timber, which are important to support the consolidation of new species. This study aimed to use Artificial Neural Networks to estimate the physical and mechanical properties of wood from the Amazon, based on basic density. The properties were: shrinkage (tangential, radial and volumetric), static bending, parallel and perpendicular to the fiber compression, parallel and transverse to the fibers, Janka hardness, traction, splitting and shear. The estimate followed the tendency of the data observed for the tangential, radial and volumetric shrinkage. The network estimated the mechanical properties with significant accuracy. Distribution of errors, static bending, parallel compression and perpendicular to the fiber compression also showed significant accuracy. Artificial Neural Networks can be used to estimate the physical and mechanical properties of wood from Amazon species. |
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Palavras-Chave: |
Inteligência artificial; Modelagem. |
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Thesagro: |
Madeira; Tecnologia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/182447/1/0718-221X-maderas-03501.pdf
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Marc: |
LEADER 01851naa a2200253 a 4500
001 2095097
005 2018-09-05
008 2018 bl uuuu u00u1 u #d
024 7 $a10.4067/S0718-221X2018005003501$2DOI
100 1 $aREIS, P. C. M. dos R.
245 $aArtificial neural networks to estimate the physical-mechanical properties of amazon second cutting cycle wood.$h[electronic resource]
260 $c2018
520 $aTimber from the second cutting cycle may make up the majority of future crop volumetric. However, there are few studies of the physical and mechanical properties of this timber, which are important to support the consolidation of new species. This study aimed to use Artificial Neural Networks to estimate the physical and mechanical properties of wood from the Amazon, based on basic density. The properties were: shrinkage (tangential, radial and volumetric), static bending, parallel and perpendicular to the fiber compression, parallel and transverse to the fibers, Janka hardness, traction, splitting and shear. The estimate followed the tendency of the data observed for the tangential, radial and volumetric shrinkage. The network estimated the mechanical properties with significant accuracy. Distribution of errors, static bending, parallel compression and perpendicular to the fiber compression also showed significant accuracy. Artificial Neural Networks can be used to estimate the physical and mechanical properties of wood from Amazon species.
650 $aMadeira
650 $aTecnologia
653 $aInteligência artificial
653 $aModelagem
700 1 $aSOUZA, A. L. de
700 1 $aREIS, L. P.
700 1 $aCARVALHO, A. M. M. L.
700 1 $aFREITAS, L. J. M. de
700 1 $aRÊGO, L. J. S.
700 1 $aLEITE, H. G.
773 $tMaderas. Ciencia y tecnología$gv. 20, n. 3, p. 343-352, 2018.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
07/04/2015 |
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Data da última atualização: |
30/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
COUTO, L. D.; TIBIRIÇA, S. H. C.; PINHEIRO, I. O.; MITTEROFHE, A.; LIMA, A. C.; CASTRO, M. F.; GONÇALVES, M.; SILVA, M. R.; GUIMARÃES, R. J. P. S.; ROSA, F. M.; COIMBRA, E. S. |
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Afiliação: |
LUZIDALVA D. COUTO, UFJF; SANDRA H. C. TIBIRIÇA, UFJF; IZABELLA O. PINHEIRO, Secretaria de Estado da Saúde de MG; ADALBERTO MITTEROFHE, Secretaria de Estado da Saúde de MG; ADILSON C. LIMA, Secretaria de Estado da Saúde de MG; MILTON F. CASTRO, Secretaria de Estado da Saúde de MG; MURILO GONÇALVES, Secretaria de Estado da Saúde de MG; MARCIO ROBERTO SILVA, CNPGL; RICARDO J. P. S. GUIMARÃES, Instituto Evandro Chagas; FLORENCE M. ROSA, UFJF; ELAINE S. COIMBRA, UFJF. |
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Título: |
Neglected tropical diseases: prevalence and risk factors for schistosomiasis and soil-transmitted helminthiasis in a region of Minas Gerais State, Brazil. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Transactions of The Royal Society of Tropical Medicine and Hygiene, v. 108, n. 6, p. 363-71, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
Background: Among the neglected tropical diseases (NTDs), schistosomiasis and the three main soil-transmitted helminthiases (STHs), i.e., ascariasis, trichuriasis and hookworm infection, represent the most common infections in developing countries. In Brazil, there is a lack of epidemiological data in many parts of the country, which favors the unawareness of the real situation concerning these diseases. Due to this, we investigated the occurrence of schistosomiasis and STHs in a region of Minas Gerais State, Brazil. Methods: One stool sample was collected from 503 individuals, whose ages ranged from 0.1 to 91.2 years, and screened using both the Kato-Katz and the Formol-Ether methods. In parallel, a malacological survey was carried out in the main water bodies of the district, and Biomphalaria susceptibility assays and kernel-based techniques were also performed. Results: No individual was found infected with Ascaris lumbricoides or hookworm. Schistosoma mansoni was the most common parasite found (1.6%). The prevalence was higher in males and the chance of acquiring the disease increased by 43.35 times with contact with a body of water. None of the Biomphalaria tenagophila and B. glabrata specimens were found naturally infected, but B. glabrata was highly susceptible to infection with Schistosoma mansoni. Using kernel-based techniques, clusters of Biomphalaria were found near the households where the infected individuals lived. Conclusions: Schistosomiasis was the most prevalent parasitic infection found. Our findings show that the occurrence of this disease has been underestimated by the local health care service, and highlight the importance of epidemiological surveillance in areas of low prevalence for schistosomiasis. MenosBackground: Among the neglected tropical diseases (NTDs), schistosomiasis and the three main soil-transmitted helminthiases (STHs), i.e., ascariasis, trichuriasis and hookworm infection, represent the most common infections in developing countries. In Brazil, there is a lack of epidemiological data in many parts of the country, which favors the unawareness of the real situation concerning these diseases. Due to this, we investigated the occurrence of schistosomiasis and STHs in a region of Minas Gerais State, Brazil. Methods: One stool sample was collected from 503 individuals, whose ages ranged from 0.1 to 91.2 years, and screened using both the Kato-Katz and the Formol-Ether methods. In parallel, a malacological survey was carried out in the main water bodies of the district, and Biomphalaria susceptibility assays and kernel-based techniques were also performed. Results: No individual was found infected with Ascaris lumbricoides or hookworm. Schistosoma mansoni was the most common parasite found (1.6%). The prevalence was higher in males and the chance of acquiring the disease increased by 43.35 times with contact with a body of water. None of the Biomphalaria tenagophila and B. glabrata specimens were found naturally infected, but B. glabrata was highly susceptible to infection with Schistosoma mansoni. Using kernel-based techniques, clusters of Biomphalaria were found near the households where the infected individuals lived. Conclusions: Schistosomiasis was the most prev... Mostrar Tudo |
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Palavras-Chave: |
Diagnosis; Kato-Katz; Low-transmission area; STH infections. |
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Thesaurus NAL: |
schistosomiasis. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02719naa a2200301 a 4500
001 2012918
005 2024-01-30
008 2014 bl uuuu u00u1 u #d
100 1 $aCOUTO, L. D.
245 $aNeglected tropical diseases$bprevalence and risk factors for schistosomiasis and soil-transmitted helminthiasis in a region of Minas Gerais State, Brazil.$h[electronic resource]
260 $c2014
520 $aBackground: Among the neglected tropical diseases (NTDs), schistosomiasis and the three main soil-transmitted helminthiases (STHs), i.e., ascariasis, trichuriasis and hookworm infection, represent the most common infections in developing countries. In Brazil, there is a lack of epidemiological data in many parts of the country, which favors the unawareness of the real situation concerning these diseases. Due to this, we investigated the occurrence of schistosomiasis and STHs in a region of Minas Gerais State, Brazil. Methods: One stool sample was collected from 503 individuals, whose ages ranged from 0.1 to 91.2 years, and screened using both the Kato-Katz and the Formol-Ether methods. In parallel, a malacological survey was carried out in the main water bodies of the district, and Biomphalaria susceptibility assays and kernel-based techniques were also performed. Results: No individual was found infected with Ascaris lumbricoides or hookworm. Schistosoma mansoni was the most common parasite found (1.6%). The prevalence was higher in males and the chance of acquiring the disease increased by 43.35 times with contact with a body of water. None of the Biomphalaria tenagophila and B. glabrata specimens were found naturally infected, but B. glabrata was highly susceptible to infection with Schistosoma mansoni. Using kernel-based techniques, clusters of Biomphalaria were found near the households where the infected individuals lived. Conclusions: Schistosomiasis was the most prevalent parasitic infection found. Our findings show that the occurrence of this disease has been underestimated by the local health care service, and highlight the importance of epidemiological surveillance in areas of low prevalence for schistosomiasis.
650 $aschistosomiasis
653 $aDiagnosis
653 $aKato-Katz
653 $aLow-transmission area
653 $aSTH infections
700 1 $aTIBIRIÇA, S. H. C.
700 1 $aPINHEIRO, I. O.
700 1 $aMITTEROFHE, A.
700 1 $aLIMA, A. C.
700 1 $aCASTRO, M. F.
700 1 $aGONÇALVES, M.
700 1 $aSILVA, M. R.
700 1 $aGUIMARÃES, R. J. P. S.
700 1 $aROSA, F. M.
700 1 $aCOIMBRA, E. S.
773 $tTransactions of The Royal Society of Tropical Medicine and Hygiene$gv. 108, n. 6, p. 363-71, 2014.
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