| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Territorial. |
|
Data corrente: |
11/04/2012 |
|
Data da última atualização: |
18/01/2013 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
LU, D.; CHEN, Q.; WANG, G.; MORAN, E.; BATISTELLA, M.; ZHANG, M.; LAURIN, G. V.; SAAH, D. |
|
Afiliação: |
DENGSHENG LU, INDIANA UNIVERSITY; QI CHEN, ZHEJIANG A&F UNIVERSITY; GUANGXING WANG, SOUTHERN ILLINOIS UNIVERSITY AT CARBONDALE; EMILIO MORAN, INDIANA UNIVERSITY; MATEUS BATISTELLA, CNPM; MAOZHEN ZHANG, ZHEJIANG A&F UNIVERSITY; GAIA VAGLIO LAURIN, UNIVERSITY OF TOR VERGATA; DAVID SAAH, SPATIAL INFORMATICS GROUP. |
|
Título: |
Aboveground forest biomass estimation with Landsat and LiDAR data and uncertainty analysis of the estimates. |
|
Ano de publicação: |
2012 |
|
Fonte/Imprenta: |
International Journal of Forestry Research, v. 2012. p. 16, 2012 |
|
Páginas: |
16 p. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Landsat Thematic mapper (TM) image has long been the dominate data source, and recently LiDAR has offered an important new structural data stream for forest biomass estimations. On the other hand, forest biomass uncertainty analysis research has only recently obtained sufficient attention due to the difficulty in collecting reference data. This paper provides a brief overview of current forest biomass estimation methods using both TM and LiDAR data. A case study is then presented that demonstrates the forest biomass estimation methods and uncertainty analysis. Results indicate that Landsat TM data can provide adequate biomass estimates for secondary succession but are not suitable for mature forest biomass estimates due to data saturation problems. LiDAR can overcome TM?s shortcoming providing better biomass estimation performance but has not been extensively applied in practice due to data availability constraints. The uncertainty analysis indicates that various sources affect the performance of forest biomass/carbon estimation. With that said, the clear dominate sources of uncertainty are the variation of input sample plot data and data saturation problem related to optical sensors. A possible solution to increasing the confidence in forest biomass estimates is to integrate the strengths of multisensor data. |
|
Thesagro: |
Biomassa. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/57333/1/MateusFR.pdf
|
|
Marc: |
LEADER 01955naa a2200229 a 4500
001 1922003
005 2013-01-18
008 2012 bl uuuu u00u1 u #d
100 1 $aLU, D.
245 $aAboveground forest biomass estimation with Landsat and LiDAR data and uncertainty analysis of the estimates.
260 $c2012
300 $a16 p.
520 $aLandsat Thematic mapper (TM) image has long been the dominate data source, and recently LiDAR has offered an important new structural data stream for forest biomass estimations. On the other hand, forest biomass uncertainty analysis research has only recently obtained sufficient attention due to the difficulty in collecting reference data. This paper provides a brief overview of current forest biomass estimation methods using both TM and LiDAR data. A case study is then presented that demonstrates the forest biomass estimation methods and uncertainty analysis. Results indicate that Landsat TM data can provide adequate biomass estimates for secondary succession but are not suitable for mature forest biomass estimates due to data saturation problems. LiDAR can overcome TM?s shortcoming providing better biomass estimation performance but has not been extensively applied in practice due to data availability constraints. The uncertainty analysis indicates that various sources affect the performance of forest biomass/carbon estimation. With that said, the clear dominate sources of uncertainty are the variation of input sample plot data and data saturation problem related to optical sensors. A possible solution to increasing the confidence in forest biomass estimates is to integrate the strengths of multisensor data.
650 $aBiomassa
700 1 $aCHEN, Q.
700 1 $aWANG, G.
700 1 $aMORAN, E.
700 1 $aBATISTELLA, M.
700 1 $aZHANG, M.
700 1 $aLAURIN, G. V.
700 1 $aSAAH, D.
773 $tInternational Journal of Forestry Research$gv. 2012. p. 16, 2012
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Territorial (CNPM) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria de Alimentos. Para informações adicionais entre em contato com ctaa.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
|
Data corrente: |
06/05/2019 |
|
Data da última atualização: |
10/10/2019 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
SANTOS, A. M. N.; MOREIRA, A. P. D.; CARVALHO, C. W. P. de; LUCHESE, R.; RIBEIRO, E.; MCGUINNESS, G. B.; MENDES, M. F.; OLIVEIRA, R. N. |
|
Afiliação: |
Antonia Monica Neres Santos, UFRRJ; Ana Paula Duarte Moreira, UFRJ; CARLOS WANDERLEI PILER DE CARVALHO, CTAA; Rosa Luchese, UFRRJ; Edlene Ribeiro, UFRRJ; Garrett B. McGuinness, Dublin City University; Marisa Fernandes Mendes, UFRRJ; Renata Nunes Oliveira, UFRJ. |
|
Título: |
Physically Cross-Linked Gels of PVA with Natural Polymers as Matrices for Manuka Honey Release in Wound-Care Applications. |
|
Ano de publicação: |
2019 |
|
Fonte/Imprenta: |
Materials, v. 12, n. 559, p. 1-22, 2019. |
|
DOI: |
10.3390/ma12040559 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Manuka honey is a well-known natural material from New Zealand, considered to have properties beneficial for burn treatment. Gels created from polyvinyl alcohol (PVA) blended with natural polymers are potential burn-care dressings, combining biocompatibility with high fluid uptake. Controlled release of manuka honey from such materials is a possible strategy for improving burn healing. This work aimed to produce polyvinyl alcohol (PVA), PVA?sodium carboxymethylcellulose (PVA-CMC), PVA?gelatin (PVA-G), and PVA?starch (PVA-S) cryogels infused with honey and to characterize these materials physicochemically, morphologically, and thermally, followed by in vitro analysis of swelling capacity, degradation/weight loss, honey delivery kinetics, and possible activity against Staphylococcus aureus. The addition of honey to PVA led to many PVA crystals with defects, while PVA?starch?honey and PVA?sodium carboxymethylcellulose?honey (PVA-CMC-H) formed amorphous gels. PVA-CMC presented the highest swelling degree of all. PVA-CMC-H and PVA?gelatin?honey presented the highest swelling capacities of the honey-laden samples. Weight loss/degradation was significantly higher for samples containing honey. Layers submitted to more freeze?thawing cycles were less porous in SEM images. With the honey concentration used, samples did not inhibit S. aureus, but pure manuka honey was bactericidal and dilutions superior to 25% honey were bacteriostatic, indicating the need for higher concentrations to be more effective. MenosManuka honey is a well-known natural material from New Zealand, considered to have properties beneficial for burn treatment. Gels created from polyvinyl alcohol (PVA) blended with natural polymers are potential burn-care dressings, combining biocompatibility with high fluid uptake. Controlled release of manuka honey from such materials is a possible strategy for improving burn healing. This work aimed to produce polyvinyl alcohol (PVA), PVA?sodium carboxymethylcellulose (PVA-CMC), PVA?gelatin (PVA-G), and PVA?starch (PVA-S) cryogels infused with honey and to characterize these materials physicochemically, morphologically, and thermally, followed by in vitro analysis of swelling capacity, degradation/weight loss, honey delivery kinetics, and possible activity against Staphylococcus aureus. The addition of honey to PVA led to many PVA crystals with defects, while PVA?starch?honey and PVA?sodium carboxymethylcellulose?honey (PVA-CMC-H) formed amorphous gels. PVA-CMC presented the highest swelling degree of all. PVA-CMC-H and PVA?gelatin?honey presented the highest swelling capacities of the honey-laden samples. Weight loss/degradation was significantly higher for samples containing honey. Layers submitted to more freeze?thawing cycles were less porous in SEM images. With the honey concentration used, samples did not inhibit S. aureus, but pure manuka honey was bactericidal and dilutions superior to 25% honey were bacteriostatic, indicating the need for higher concentrations to ... Mostrar Tudo |
|
Palavras-Chave: |
Burn care; Manuka honey; Natural polymers; PVA blends. |
|
Thesaurus NAL: |
Food technology. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02340naa a2200277 a 4500
001 2108762
005 2019-10-10
008 2019 bl uuuu u00u1 u #d
024 7 $a10.3390/ma12040559$2DOI
100 1 $aSANTOS, A. M. N.
245 $aPhysically Cross-Linked Gels of PVA with Natural Polymers as Matrices for Manuka Honey Release in Wound-Care Applications.$h[electronic resource]
260 $c2019
520 $aManuka honey is a well-known natural material from New Zealand, considered to have properties beneficial for burn treatment. Gels created from polyvinyl alcohol (PVA) blended with natural polymers are potential burn-care dressings, combining biocompatibility with high fluid uptake. Controlled release of manuka honey from such materials is a possible strategy for improving burn healing. This work aimed to produce polyvinyl alcohol (PVA), PVA?sodium carboxymethylcellulose (PVA-CMC), PVA?gelatin (PVA-G), and PVA?starch (PVA-S) cryogels infused with honey and to characterize these materials physicochemically, morphologically, and thermally, followed by in vitro analysis of swelling capacity, degradation/weight loss, honey delivery kinetics, and possible activity against Staphylococcus aureus. The addition of honey to PVA led to many PVA crystals with defects, while PVA?starch?honey and PVA?sodium carboxymethylcellulose?honey (PVA-CMC-H) formed amorphous gels. PVA-CMC presented the highest swelling degree of all. PVA-CMC-H and PVA?gelatin?honey presented the highest swelling capacities of the honey-laden samples. Weight loss/degradation was significantly higher for samples containing honey. Layers submitted to more freeze?thawing cycles were less porous in SEM images. With the honey concentration used, samples did not inhibit S. aureus, but pure manuka honey was bactericidal and dilutions superior to 25% honey were bacteriostatic, indicating the need for higher concentrations to be more effective.
650 $aFood technology
653 $aBurn care
653 $aManuka honey
653 $aNatural polymers
653 $aPVA blends
700 1 $aMOREIRA, A. P. D.
700 1 $aCARVALHO, C. W. P. de
700 1 $aLUCHESE, R.
700 1 $aRIBEIRO, E.
700 1 $aMCGUINNESS, G. B.
700 1 $aMENDES, M. F.
700 1 $aOLIVEIRA, R. N.
773 $tMaterials$gv. 12, n. 559, p. 1-22, 2019.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agroindústria de Alimentos (CTAA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
