This study presents the shear performance and the modes of failure of reinforced concrete (RC) beams strengthened with externally bonded carbon fiber reinforced polymer (CFRP) wraps. The experimental program consisted of testing twenty-seven, full-scale, RC beams. The variables investigated in this research study included steel stirrups (i.e., beams with and without steel stirrups), shear span-...

Abstract We investigated the beam profiles and polarization states in low-temperature photoluminescence from vertical GaAs/InGaAs/GaAs core-multishell nanowire (NW) under continuous-wave pulsed excitations. In profile excitation, a doughnut-shaped intensity distribution was confirmed. The shown to exhibit an axisymmetric polarization. These observations indicate that cylindrical vector beams we...

In the current practices of structural design, the concept of moment redistribution in conjunction with linear analysis is well known and widely accepted. There are numerous studies and various references that deal with the issue and different codes propose various provisions for the amount of permissible redistribution. Despite numerous advantages, there are some limitations in the available w...

3 The universal CMB 4 3.1 The reactant beam generation . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1.1 The beam specificity . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1.2 Continuous and pulsed supersonic beams of transient species . . . . 6 3.1.3 Reagent state-selection . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.2 The product detection and characterization . . ...

A scheme for generating continuous beams of atoms in nonclassical or entangled quantum states is proposed and analyzed. For this the recently suggested transfer technique of quantum states from light fields to collective atomic excitation by stimulated Raman adiabatic passage [M. Fleischhauer and M. D. Lukin, Phys. Rev. Lett. 84, 5094 (2000)] is employed and extended to matter waves.