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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
22/12/1999 |
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Data da última atualização: |
22/12/1999 |
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Autoria: |
CRUVINEL, P. E.; CRESTANA, S. |
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Afiliação: |
EMBRAPA-CNPDIA. |
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Título: |
The use of X and gamma rays dedicated computerized minitomography scanner in agriculture due to the limitations imposed by medical computerized tomography scanners. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
In: WORKSHOP ON CYBERNETIC VISION, 2., Dec. 1996, Sao Carlos, SP. Proceedings... Los Alamitos: IEEE Computer Society, 1997. |
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Páginas: |
p. 208-212. |
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Idioma: |
Inglês |
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Conteúdo: |
X-rays computerized tomography (CT) is becoming a popular method of obtaining cross-sectional images of objects. Many commercial CT scanners using continuous spectrum X-rays from either an X-ray tube or y-ray source are now available, mainly for medical use. Additionally to its use in medicine, today CT technique, for example, is being widely used for non-medical applications. The main limitations in using medical CT scanners in non-medical applications is not only the complexity and the high cost of the CTs but mainly due to its response in energy. Besides, the medical CT scanners are always very busy, and dedicated to be used for patients. In 1987 was developed at the Center for Instrumentation (CNPDIA) of the Brazilian Enterprise for Agricultural Research Center (EMBRAPA) and X- and g- rays computerized minitomography scanner for multidisciplinary use. Since 1987 several multidisciplinary works have been carried out from CNPDIA, mainly related to applications to soil physics. In the present study, the importance of the use of dedicated CT scanners and data processing is demonstrated for the evaluation of soil bulk density. Besides, for comparison, it is also outlined measurements using a third generation medical computerized tomography scanner. Results show the usefulness of the use of a dedicated CT scanner, mainly due to image contrast characteristics and cost. |
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Palavras-Chave: |
Agricultural instrumentation; Congresses; Congressos; Gamma-ray; Instrumentacao agropecuaria; Medical tomography; Minitomografia; Minitomography; Tomografo medico; X-ray. |
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Thesagro: |
Raio Gama; Raio X; Tomografia. |
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Thesaurus Nal: |
tomography. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02382naa a2200313 a 4500
001 1027161
005 1999-12-22
008 1997 bl --- 0-- u #d
100 1 $aCRUVINEL, P. E.
245 $aThe use of X and gamma rays dedicated computerized minitomography scanner in agriculture due to the limitations imposed by medical computerized tomography scanners.
260 $c1997
300 $ap. 208-212.
520 $aX-rays computerized tomography (CT) is becoming a popular method of obtaining cross-sectional images of objects. Many commercial CT scanners using continuous spectrum X-rays from either an X-ray tube or y-ray source are now available, mainly for medical use. Additionally to its use in medicine, today CT technique, for example, is being widely used for non-medical applications. The main limitations in using medical CT scanners in non-medical applications is not only the complexity and the high cost of the CTs but mainly due to its response in energy. Besides, the medical CT scanners are always very busy, and dedicated to be used for patients. In 1987 was developed at the Center for Instrumentation (CNPDIA) of the Brazilian Enterprise for Agricultural Research Center (EMBRAPA) and X- and g- rays computerized minitomography scanner for multidisciplinary use. Since 1987 several multidisciplinary works have been carried out from CNPDIA, mainly related to applications to soil physics. In the present study, the importance of the use of dedicated CT scanners and data processing is demonstrated for the evaluation of soil bulk density. Besides, for comparison, it is also outlined measurements using a third generation medical computerized tomography scanner. Results show the usefulness of the use of a dedicated CT scanner, mainly due to image contrast characteristics and cost.
650 $atomography
650 $aRaio Gama
650 $aRaio X
650 $aTomografia
653 $aAgricultural instrumentation
653 $aCongresses
653 $aCongressos
653 $aGamma-ray
653 $aInstrumentacao agropecuaria
653 $aMedical tomography
653 $aMinitomografia
653 $aMinitomography
653 $aTomografo medico
653 $aX-ray
700 1 $aCRESTANA, S.
773 $tIn: WORKSHOP ON CYBERNETIC VISION, 2., Dec. 1996, Sao Carlos, SP. Proceedings... Los Alamitos: IEEE Computer Society, 1997.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| Registros recuperados : 548 | |
| 82. |  | CRESTANA, S.; SOUSA, I. S. F. Agricultura tropical no Brasil. In: ALBUQUERQUE, A. C. S.; SILVA, A. G. da. (Ed.). Agricultura tropical: quatro décadas de inovações tecnológicas, institucionais e políticas. Brasília, DF: Embrapa Informação Tecnológica, 2008. p. 41-63.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Instrumentação. |
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| 83. | | VIVALDINI, A.; WATANABE, A.; CRESTANA, S. Avaliação e monitoramento da perda de solo utilizando argila marcada com terras raras como traçador. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 12., 2020, São Carlos, SP. Anais... São Carlos: Embrapa Instrumentação: Embrapa Pecuária Sudeste, 2020. Editores técnicos: Cristiane Sanchez Farinas, Daniel Souza Corrêa, José Manoel Marconcini, Maria Fernanda Berlingieri Durigan, Paulo Sérgio de Paula Herrmann Junior. 58 Embrapa Instrumentação. Documentos, 71.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 89. | | CRESTANA, S.; MASCARENHAS, S.; POZZI-MUCELLI, R. Efeitos da compactação e do umidecimento prévio do solo na infiltração vertical da água. In: REUNIÃO ANUAL DA SBPC, 37., 1985, Belo Horizonte, MG. Ciência e Cultura, Sao Paulo, v.37, n.7, p.359, jul. 1985. Suplemento. Resumos. ref.05-D.1.12.| Biblioteca(s): Embrapa Instrumentação. |
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| 90. | | FERREIRA, F. N. G.; CRESTANA, S. Confinamentos de gado de corte no estado de São Paulo: legislação ambiental e automação. In: SIMPÓSIO NACIONAL DE INSTRUMENTAÇÃO AGROPECUÁRIA, 2014, São Carlos, SP Anais do SIAGRO: ciência, inovação e mercado 2014. São Carlos, SP: Embrapa Instrumentação, 2014. p. 735-738. Editores: Carlos Manoel Pedro Vaz, Débora Marcondes Bastos Pereira Milori, Silvio Crestana.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 94. | | CRESTANA, S.; MASCARENHAS, S.; CESAREO, R. Minitomografo para aplicacoes em ciencia do solo: algumas caracteristicas. In: REUNIAO ANUAL DA SBPC, 38., 1986, Curitiba, PR. Ciencia e Cultura, Sao Paulo, v.38, n.7, p.431, jul. 1986. Suplemento. Resumos. ref.31-D.1.10.| Biblioteca(s): Embrapa Instrumentação. |
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| 100. | | JORGE, L. A. C.; CRESTANA, S. Measurement of root length by digital image analysis. In: GAZZINELLI, R.; MOREIRA, R.L.; RODRIGUES, W.N., ed. Physics and industrial development: bridging the gap. Singapore: World Scientific, 1997. p. 370-375. Proceedings of the 2nd International Conference, July 1997, Belo Horizonte, MG.| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 548 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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