10,167 research outputs found
The effects of multiple repairs on Inconel 718 weld mechanical properties
Inconel 718 weldments were repaired 3, 6, 9, and 13 times using the gas tungsten arc welding process. The welded panels were machined into mechanical test specimens, postweld heat treated, and nondestructively tested. Tensile properties and high cycle fatigue life were evaluated and the results compared to unrepaired weld properties. Mechanical property data were analyzed using the statistical methods of difference in means for tensile properties and difference in log means and Weibull analysis for high cycle fatigue properties. Statistical analysis performed on the data did not show a significant decrease in tensile or high cycle fatigue properties due to the repeated repairs. Some degradation was observed in all properties, however, it was minimal
Temperature dependence of the coercive field in single-domain particle systems
The magnetic properties of Cu97Co3 and Cu90Co10 granular alloys were measured
over a wide temperature range (2 to 300K). The measurements show an unusual
temperature dependence of the coercive field. A generalized model is proposed
and explains well the experimental behavior over a wide temperature range. The
coexistence of blocked and unblocked particles for a given temperature rises
difficulties that are solved here by introducing a temperature dependent
blocking temperature. An empirical factor gamma arise from the model and is
directly related to the particle interactions. The proposed generalized model
describes well the experimental results and can be applied to other
single-domain particle system.Comment: 7 pages, 8 figures, revised version, accepted to Physical Review B on
29/04/200
Importância do uso de sementes de boa qualidade de arroz irrigado para a safra 2011/2012.
bitstream/item/59276/1/qualidade-arroz-Cley.pd
Atenção ao comportamento da ferrugem asiática na safra de soja 2008/2009, para a próxima safra.
bitstream/CPACT-2010/12300/1/soja-Cley.pdfPublicado em: site do Grupo Cultivar, em 23/10/09; site Jurídico Brasil, em 26/10/09; site Portal do Agronegócio, em 26/10109; site Infobibos, em 02/11/2009
Cuidados de Enfermagem ao Doente Ventilado com Óxido Nítrico
A Nitroterapia como forma de tratamento
foi identificada pela primeira vez
em 1987. Nesta data foi identificado o
Óxido Nítrico (ON) como um factor de
relaxamento derivado do endotélio, com
uma acção importante na regulação do
tónus vascular, na função plaquetária,
na acção bactericida e modeladora do
sistema imunitário.
São diversas as situações clínicas
em que se justifica a ventilação com ON
no entanto, é possível estabelecer um
factor comum entre elas : um quadro de
Hipertensão Pulmonar.
Na UCINP do Hospital Maria pia, foi
iniciada a ventilação com ON no ano de
2000 e desde esta data foram já ventilados
seis doentes com este gás, tendo
sido obtidos resultados francamente
satisfatórios.Nitroterapy was identified in 1987
as a way of treatment. In this year Nitric
Oxide (NO) was divulged as a relaxation
factor of the endothelium, with an important
action on regulation of vascular tonus,
plaquetary function, bactericide action
and modeller of immunity system.
Nitric Oxide is used especially in
Pulmonary Hypertension.
Since 2000, in the Intensive Care
Unity of Maria Pia Hospital, six patients
were ventilated using NO with good
results
Avaliação da eficiência agronômica dos fungicidas no controle da ferrugem asiática na cultura da soja.
bitstream/item/31517/1/comunicado-227.pd
On quasi-Jacobi and Jacobi-quasi bialgebroids
We study quasi-Jacobi and Jacobi-quasi bialgebroids and their relationships
with twisted Jacobi and quasi Jacobi manifolds. We show that we can construct
quasi-Lie bialgebroids from quasi-Jacobi bialgebroids, and conversely, and also
that the structures induced on their base manifolds are related via a quasi
Poissonization
Avaliação da reação de resistência à ferrugem da folha e do colmo à campo no germoplasma de azevém da Embrapa, safra 2006.
bitstream/CNPGL/12932/1/comunicado_167.pd
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