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| Le Gall, Maelenn; Davies, Peter; Martin, Nicolas; Baley, Christophe. |
| Density is one of the fundamental properties of fibres which reinforce polymer matrix composites, and is used both to estimate composite weight and to evaluate fibre content for property predictions. For traditional composites, reinforced by glass or carbon fibres, unique density values are well known for a particular fibre grade and provide reliable fibre content estimations and composite property predictions. However, this is not the case for natural fibres. This paper first reviews published density values for flax (Linum usitatissimum L.) fibres and describes the limitations of techniques used to measure fibre density. Significant variations in published densities are found, which can be related to the measurement method. New data quantify the... |
| Tipo: Text |
Palavras-chave: Density; Flax; Archimedes; Pycnometer; Volume fraction; Tensile modulus. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00427/53875/55082.pdf |
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| Inuwa,I. M.; Hassan,M. O.; Ziada,A. M.. |
| This study was designed to test the possible effects of a combination of physical and pharmacological therapy intervention on myocardial structure of the left ventricle in spontaneously hypertensive rats (SHR). Twelve weeks old spontaneously hypertensive rats (n = 40) were divided into four groups of sedentary, (Sed) as controls, exercise only (Exer), lisinopril only 20mg/kg/day (Lis), and exercise + lisinopril (LisExer). Exercise training was performed on a treadmill (5m/min.) for 60 minutes/day, 5 days/week for 10 weeks. At the end of 10 weeks, all the rats were terminally anaesthetised, the heart was arrested in diastole by intravenous procaine and whole animal perfusion fixation through the abdominal aorta was carried out using Karnovsky's fixative (pH... |
| Tipo: Journal article |
Palavras-chave: Myocardium; Hypertrophy; ACE-inhibitor; Volume fraction; Exercise. |
| Ano: 2005 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022005000200010 |
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