Discontinuous Joints
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Propagação de fraturas em juntas rugosas não-persistentes / Fracture propagation on rough non-persistent joints
O presente trabalho foi realizado para estudar o efeito sobre a propagação de fraturas em juntas não-persistentes quando existe uma variação da rugosidade nas juntas. Para esta abordagem, foram analisados os modos de coalescência, o ângulo de início das fraturas, a resistência à compressão e deformação de modelos de argamassa contendo juntas nã
Publicado em: 2005
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2. Mapeamento da zona costeria protegida por arenitos de praia (Beachrocks) em Nísia Floresta - RN
The goal of this work comprises the detailed mapping of the coastal zone of the south coast of the State of Rio Grande do Norte. The emphasis of the study is the units of beachrocks and the features of the physical environment associated. The mapping of the beachrocks and of the adjacent coastal features is justified, among other aspects, by the fact that th
Publicado em: 2005
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3. Ultrastructure of transport pathways in stressed synovium of the knee in anaesthetized rabbits.
1. The hydraulic conductance of the synovial lining of a rabbit knee increases greatly when intra-articular pressure (IAP) is raised above approximately 9 cmH2O (yield point). To investigate the cause, synovium was fixed in situ by perfusion at controlled IAP and prepared for transmission electron microscopy. Micrographs of synovium fixed below yield pressur
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4. Hyaluronan secretion into the synovial cavity of rabbit knees and comparison with albumin turnover.
1. Hyaluronan is not only a lubricant but also enhances the synovial lining's resistance to fluid outflow. This finding led to the proposal that hyaluronan (> 2 x 10(6) Da, approximately 210 nm radius) may escape across the synovial lining less freely than smaller solutes (e.g. albumin, 6.7 x 10(4) Da, 3.6 nm radius) or water. Here multiple washouts were use