We have used a low repetition rate (1 kHz), femtosecond laser amplifier in combination with a spatial light modulator (SLM) to write optical waveguides with controllable cross-section inside a phosphate glass sample. The SLM is used to induce a controllable amount of astigmatism in the beam wavefront while the beam ellipticity is controlled through the propagation distance from the SLM to the f...

This paper sheds more light on the co-rotational element formulation for beams with uniform cross-section. The co-rotational elements are commonly used in problems in which a structure undergoes a large deformation. In this study, the foregoing element obeys the Euler-Bernoulli beam assumptions. Unlike the formulations presented in the literature, in this paper, a number of local nodal coordina...

Collocation methods are popular in providing numerical approximations to complicated governing equations owing to their simplicity in implementation. However, point collocation methods have limitations regarding accuracy and have been modified upon with the application of B-spline approximations. The present study reports the stress and deformation behavior of shear deformable functionally grad...

1 Executive Summary E12-09-017 plans to make precise measurements of cross sections of semi-inclusive charged-pion (π ±) electroproduction at deep inelastic scattering kinematics and low transverse momentum (P h⊥) from hydrogen and deuterium targets. The experiment will simultaneously, albeit with a factor of ten lower rates, accumulate charged-kaon (K ±) cross secion measurements, and obtain h...

The Bistrita city bypass crosses obliquely at km 14+162 the Bistrita river and a local road. In the area where the bridge is situated the river has a width of about 50.00m and the local road has 5.00m, being located at 12.00m from the bank of Bistrita. The bridge should provide a roadway that is 7.80m wide and two sidewalks of 1.50m. The challenge is to design a bridge that allows the crossing ...

We consider sharp focusing of a linearly polarized light beam. Using the Richards-Wolf formalism, we show that before and after focal plane there are cross-section regions in which polarization is circular (elliptical). When passing through plane, direction rotation vector reversed. If focus left-hand at definite region beam cross-section, then exactly becomes linear this region, becoming right...