Flat slabs are less labour intensive, simplify the installation of services and can accommodate more floors within restricted heights. However, the span influencing their design is the longest and they require more steel compared to two-way slabs. Other drawbacks of flat slabs are vulnerability to punching shear failure and higher deflections. To avoid punching shear failure drop panels, column...

This paper utilises non-linear finite-element analysis with three-dimensional (3D) solid elements to gain insight into the role of shear reinforcement in increasing punching resistance at internal columns flat slabs. The element correctly captures experimentally observed gradual decrease concrete contribution slab rotation and failure mode but is very computationally demanding. As an alternativ...

Action recognition has become a very important topic in computer vision, with many fundamental applications, in robotics, video surveillance, human computer interaction, and multimedia retrieval among others and a large variety of approaches have been described. The purpose of this survey is to give an overview and categorization of the approaches used. We concentrate on approaches that aim on ...

The basic relations for calculating the modes of mold punching a cylindrical hollow billet under viscoplastic conditions are given. energy calculation method is used in relation to axisymmetric field displacement velocities. Theoretical calculations work material processing pressure and damage rate performed.

This thesis deals with the relatively unknown phenomena of longitudinal forces in conductors. A survey of relevant experiments is given. Amp ere electrodynamics, which has been proposed to account for the phenomena, is compared with a Maxwell stress approach, and these are found to be equivalent. The relationship between di erent `action at a distance' theories is discussed. The role of relativ...