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| Lopes Neto,José P.; Nascimento,José W. B. do; Marques,Jordânio I.; Costa,Carlos A. da. |
| ABSTRACT For the calculation of silos structures it has been used new methods and computational tools that require mechanical properties knowledge that are still unknown for most storable materials, especially grains. In this context, we aimed to determine the mechanical properties of rice and beans grains with moisture contents of 10, 12, and 14% by applying four compressive loads (5, 10, 15 and 20). The determined mechanical properties were Poisson's ratio (ν), Modulus of Elasticity (E), and the dilatancy angle (ψ). The procedure consisted in the application of the load in compression cell, adapted from MOLENDA & STASIAK, aiming to simulate loading and unloading of silos. We observed that the Poisson's ratio calculated for both loading and unloading,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Poisson’s coefficient; Compression; Modulus of elasticity; Silos; Simulation. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000400573 |
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| Lopes Neto,José P.; Marques,Jordânio I.; Furtado,Dermeval A.; Lopes,Fernanda F. de M.; Borges,Valéria P.; Araújo,Tiago G. P.. |
| ABSTRACT Goats are homeothermic animals considered as rustic from the bioclimatic point of view, but the reduction of their productive efficiency may occur in unfavorable thermal conditions. The present study was carried out to evaluate pupil dilation as an indicator of thermal stress in Boer crossbred goats maintained under controlled environmental conditions. Six male crossbred goats of the Boer breed were distributed in a completely randomized design submitted to temperatures of 26, 29 and 33 °C. The pupillary dilation and pupillary temperature, respiratory frequency, heart rate, surface and rectal temperatures were monitored. The significant increase in physiological responses occurred in response to the increase in air temperature. An increase of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Physiology; Pupillometry; Thermal stress; Physiological responses. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018001200866 |
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