Tomographic reconstruction of a wide range of materials and biological samples can be accomplished via serial-section broad-ion-beam tomography (SSBIB) – alternately ion-polishing away material and imaging the remaining polished surface with optical or scanning electron microscopy (SEM) [1]. Under computer control it is practical to acquire 2-D images of hundreds of sections without user interv...

Nonlinear beam dynamics is an important issue in accelerator systems. The Poincar e section map plays a basic role in characterizing and analyzing such a nonlinear system. Although many kinds of nonlinear beam dynamics experiments have been conducted, no direct measurement of a nonlinear map has been reported for an accelerator in normal operation mode. In this paper, we will show that it appea...

In order to analyze and simulate the collapse of reinforced concrete (RC) elements under fire, a novel numerical model based on the fiber beam model is proposed in this paper. By dividing the cross section of beam element into many small concrete and steel fibers and assigning different materials to each fiber, this model can consider the non-uniform temperature distribution across the section ...

The purpose of this research to present for the first time a practical plan to cost optimize the composite metal floor deck, so that the designer, by having the dimensions of the main beam framing, will be able to come to the most design including: the section of composite steel beam, the beam span, the thickness of metal deck sheets and the thickness of the concrete slab. The main method of op...