Consulta: subjectFacets:"Immersion"
Registros recuperados: 12
Data/hora: 04/06/2024 03:48:38

Emergência e vigor de sementes de guaraná submetidas a pré-embebição e ao pré-esfriamento.
Provedor de dados: Informação Tecnológica em Agricultura (Infoteca-e)
Autores: FRAZÃO, D. A. C.; CARVALHO, J. E. U. de; FIGUEIREDO, F. J. C.; KATO, A. K.
bitstream/item/31925/1/CPATU-BP59.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Belem; Pará; Brasil; Immersion; Seed; Beedlings.; Imersão; Guaraná; Paullinia Cupana; Plântula; Semente; Temperatura.; Amazonia; Temperature.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/382821

Apport en substances dangereuses par le dragage et le clapage. Sous-région marine Méditerranée occidentale. Evaluation initiale DCSMM.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Le Guyader, Céline.
Tipo: Text
Palavras-chave: Méditerranée; Substances dangereuses; Dragage; Clapage; Sédiments; Immersion.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00331/44235/43804.pdf

Apport en substances dangereuses par le dragage et le clapage. Sous-région marine Golfe de Gascogne. Evaluation initiale DCSMM.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Le Guyader, Céline.
Tipo: Text
Palavras-chave: Golfe de Gascogne; Substances dangereuses; Dragage; Clapage; Sédiments; Immersion.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00329/44052/43623.pdf

Environmental degradation of composites for marine structures: new materials and new applications
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Davies, Peter.
This paper describes the influence of seawater ageing on composites used in a range of marine structures, from boats to tidal turbines. Accounting for environmental degradation is an essential element in the multi-scale modelling of composite materials but it requires reliable test data input. The traditional approach to account for ageing effects, based on testing samples after immersion for different periods, is evolving towards coupled studies involving strong interactions between water diffusion and mechanical loading. These can provide a more realistic estimation of long-term behaviour but still require some form of acceleration if useful data, for 20 year lifetimes or more, are to be obtained in a reasonable time. In order to validate extrapolations...
Tipo: Text
Palavras-chave: Seawater; Immersion; Durability; Damage; Coupling.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00340/45167/44603.pdf

Influence of Sea Water Aging on the Mechanical Behaviour of Acrylic Matrix Composites
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Davies, Peter; Le Gac, Pierre-yves; Le Gall, Maelenn.
A new matrix resin was recently introduced for composite materials, based on acrylic resin chemistry allowing standard room temperature infusion techniques to be used to produce recyclable thermoplastic composites. This is a significant advance, particularly for more environmentally-friendly production of large marine structures such as boats. However, for such applications it is essential to demonstrate that composites produced with these resins resist sea water exposure in service. This paper presents results from a wet aging study of unreinforced acrylic and glass and carbon fibre reinforced acrylic composites. It is shown that the acrylic matrix resin is very stable in seawater, showing lower property losses after seawater aging than those of a...
Tipo: Text
Palavras-chave: Acrylic; Thermoplastic; Infusion; Seawater; Immersion.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00347/45815/45541.pdf

Fatigue Behaviour of Acrylic Matrix Composites: Influence of Seawater
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Davies, Peter; Arhant, Mael.
The recent introduction of liquid acrylic thermoplastic matrix resins which can impregnate fibre reinforcements using traditional infusion moulding offers significant potential for future composite structures in marine applications, such as marine energy devices. However, to date very few results are available to evaluate the long term durability of these composites in a marine environment. This paper describes results from a series of cyclic loading tests on glass and carbon fibre reinforced acrylic composites under both tension and four point flexural loading. Tests were performed before and after aging in natural seawater. The results were compared to results for a glass/epoxy used today in marine structures, and show a lower loss of both static and...
Tipo: Text
Palavras-chave: Acrylic; Fatigue; Immersion; Seawater.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00444/55596/57249.pdf

Apport en substances dangereuses par le dragage et le clapage. Sous-région marine Manche - Mer du Nord. Evaluation initiale DCSMM.
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Le Guyader, Céline.
Tipo: Text
Palavras-chave: Manche; Mer du Nord; Substances dangereuses; Dragage; Clapage; Sédiments; Immersion.
Ano: 2012
URL: https://archimer.ifremer.fr/doc/00327/43866/43440.pdf

Influence of Seawater Ageing on Fracture of Carbon Fiber Reinforced Epoxy Composites for Ocean Engineering
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Le Guen-geffroy, Antoine; Davies, Peter; Le Gac, Pierre Yves; Habert, Bertrand.
Carbon fiber reinforced composite materials are finding new applications in highly loaded marine structures such as tidal turbine blades and marine propellers. Such applications require long-term damage resistance while being subjected to continuous seawater immersion. However, few data exist on which to base material selection and design. This paper provides a set of results from interlaminar fracture tests on specimens before and after seawater ageing. The focus is on delamination as this is the main failure mechanism for laminated composites under out-of-plane loading. Results show that there are two contributions to changes in fracture toughness during an accelerated wet ageing program: effects due to water and effects due to physical ageing. These are...
Tipo: Text
Palavras-chave: Composite; Delamination; Seawater; Immersion; Ageing.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00652/76410/77458.pdf

Humic substances, purified MAP and hydrogel in the development and survival of Eucalyptus urograndis
Provedor de dados: Revista Brasileira de Engenharia Agrícola e Ambiental
Autores: Silva,Rodrigo J. da; Ferreira Junior,José M.; Silva,Flavia A.; Santos,Antonio C. M. dos; Lima,Saulo de O.; Silva,Rubens R. da.
ABSTRACT The development and survival of Eucalyptus urograndis plants may be influenced by products based on humic fractions of the organic matter, purified MAP and soil conditioners, such as hydrogel. Thus, the present study aimed to evaluate the effect of the commercial products Fertiactyl®, based on humic substances, purified MAP and hydrogel on the post-planting development and survival of Eucalyptus urograndis. The experiment was conducted in a randomized block design, with 25 treatments and four replicates, each of which consisted of 6 plants. The immersion of the tubes in solution with doses of Fertiactyl® and purified MAP promoted the increase in the development and survival of the plants. In the preparation of the hydrogel, the use of solution...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Electrical conductivity; Hydration; Immersion.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000700625

Quality of the mulberry (Morus sp.) in function of storage systems of the branches in pos-harvest
Provedor de dados: Revista de Educação Continuada em Medicina Veterinária e Zootecnia do CRMV-SP
Autores: Porto, Antonio José.
The quality of the mulberry, measured by moisture in the branch, leaf and stem and by leaf nutrient composition, was evaluated in fresh material and after storage of the branches in five systems (branches depository - 24 hours, system of wet cover and immersion in water-C/I - 24 hours, C/I – 48 hours, C/I – 72 hours and C/I – 96 hours). It was used a completely randomized design, with six treatments and six replications. The moisture and nutrient composition in the mulberry leaf were maintained at levels appropriate for feeding of silkworm, as in the branches stored in depository as in systems of cover and immersion for up 72 hours.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cover; Immersion; Silkworm; Moisture; Nutritional value cobertura; Imersão; Bicho-da-seda; Umidade; Valor nutricional.
Ano: 2011
URL: http://www.revistamvez-crmvsp.com.br/index.php/recmvz/article/view/464

Methods for overcoming dormancy and seed storage of Enterolobium contortisiliquum
Provedor de dados: Acta Scientiarum: Agronomy
Autores: Ferraz, Denes; Ramalho, Werther Pereira; Vale, Luís Sérgio Rodrigues.
The production of forest species that present seedlings with exogenous dormancy is limited by low germination rates, which can be overcome by rupturing or weakening the tegument. This study aimed to evaluate the efficiency of low-cost methods of overcoming dormancy and determine the effect of storage on the seeds of Enterolobium contortisiliquum. Four storage periods were used, freshly collected seeds (0), stored for 6, 12 and 18 months, and four methods were applied, mechanical scarification and immersion in water (EI), mechanical scarification (ES), immersion in water (IM) and control (TE). We obtained the percentage values of seedling emergence (EP) and the mean emergence time (TME). Conductivity and moisture were obtained as indicators of the physical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exogenous dormancy; Immersion; Mechanical scarification; Leguminous plants; Seedling production; Pacara earpod tree.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42602

Methods for overcoming dormancy and seed storage of Enterolobium contortisiliquum
Provedor de dados: Acta Scientiarum: Agronomy
Autores: Ferraz, Denes; Ramalho, Werther Pereira; Vale, Luís Sérgio Rodrigues.
The production of forest species that present seedlings with exogenous dormancy is limited by low germination rates, which can be overcome by rupturing or weakening the tegument. This study aimed to evaluate the efficiency of low-cost methods of overcoming dormancy and determine the effect of storage on the seeds of Enterolobium contortisiliquum. Four storage periods were used, freshly collected seeds (0), stored for 6, 12 and 18 months, and four methods were applied, mechanical scarification and immersion in water (EI), mechanical scarification (ES), immersion in water (IM) and control (TE). We obtained the percentage values of seedling emergence (EP) and the mean emergence time (TME). Conductivity and moisture were obtained as indicators of the physical...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Exogenous dormancy; Immersion; Mechanical scarification; Leguminous plants; Seedling production; Pacara earpod tree.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42602