Following the Northridge earthquake of 1994, a significant number of steel moment resisting structural systems were damaged. Several studies have been conducted to improve the seismic performance of steel structures and specially their beam-to-column connections. One of the proposed connections for special moment-resisting frames included AISC-358 is Kaiser bolted bracket moment connection, bri...

We demonstrate the generation of two high-power laser beams whose frequencies are separated by the ground state hyperfine transition frequency in (87)Rb. The system uses a single master diode laser appropriately shifted by high frequency acousto-optic modulators and amplified by semiconductor tapered amplifiers. This produces two 1 W laser beams with a frequency spacing of 6.834 GHz and a relat...

Physics with neutrino beams has played a crucial role in establishing the standard model and its structure, specifically in leading to the discovery of weak neutral currents and of their properties. Currently, while the physics of neutrinos gives us the first evidence of physics beyond the standard model, the use of neutrinos as probes appears to be the only way of accessing subtle details of t...

An overview of two types of beam solutions is presented, Gaussian beams and Bessel beams. Gaussian beams are examples of non-localized or diffracting beam solutions, and Bessel beams are example of localized, non-diffracting beam solutions. Gaussian beams stay bounded over a certain propagation range after which they diverge. Bessel beams are among a class of solutions to the wave equation that...

Tapered beams are more effective than uniform because they offer a superior distribution of mass and strength also satisfy unique functional requirements in many engineering applications. This study calculates the mode shapes natural frequencies straight various tapered Euler-Bernoulli by finite elements using ANSYS 16.5 software. The dynamic response for cantilever beam was obtained different ...

Cylindrical vector beams and vortex beams, two types of typical singular optical characterized by axially symmetric polarization helical phase front, possess the unique focusing property ability carrying orbital angular momentum. We discuss formation mechanisms such in few-mode fibers under basis show recent advances generating techniques that are mainly based on long-period fiber gratings, mod...