We study complex Dirac structures, that is, structures in the complexified generalized tangent bundle. These include presymplectic foliations, transverse holomorphic CR-related geometries and structures. introduce two invariants, order (normalized) type. show that, together with real index, they allow us to obtain a pointwise classification of For constant order, we prove existence an underlyin...

nowadays, tube bonding in vehicles structure is noticeably considered by many researches. in this paper, local tube compression process by a rubber ring has been studied. firstly, simulation of the process was performed by fem. then, experimental test has been carried out to validate the numerical results. numerical and experimental results were compared showing a good agreement. in the second ...