Results 51 to 60 of about 14,611,742 (406)
Phase induced transparency mediated structured beam generation in a closed-loop tripod configuration [PDF]
Phys. Rev. A 96, 033811 (2017), 2017 We present a phase induced transparency based scheme to generate structured beam patterns in a closed four level atomic system. We employ phase structured probe beam and a transverse magnetic field (TMF) to create phase dependent medium susceptibility. We show that such phase dependent modulation of absorption holds the key to formation of a structured
arxiv +1 more source
Jurnal Teknik Sipil dan Perencanaan, 2021 The research is aimed to figure out the comparison of the strength capacity and economic value comparison of castellated steel beam to its equivalent IWF beam.
Listiyono Budi +5 more
doaj +1 more source
Towards linear modal analysis for an L-shaped beam: equations of motion [PDF]
, 2013 We consider an L-shaped beam structure and derive all the equations of motion considering also the rotary inertia terms. We show that the equations are decoupled in two motions, namely the in-plane bending and out-of-plane bending with torsion.
Balachandran +14 more
core +1 more source
Design and verification of a wide range and high precision electron gun system
He jishu, 2022 BackgroundGrid-controlled electron guns mostly use mesh grid and extract pulsed beam current; there is little research on the wide-range direct current beam.PurposeThis study aims to design a wide-range high-accuracy direct current electron gun to meet ...
ZHANG Haowei +3 more
doaj +1 more source
Laser Interaction with a Dielectric Block [PDF]
, 2010 Some optical experiments provide the easiest way to test quantum mechanical predictions. Such a situation applies to a laser beam traversing a dielectric structure. The dielectric structure mir- roring quantum mechanical potentials. The simplest of these,
De Leo, Stefano, Rotelli, Pietro
core +1 more source
Poincaré Bessel beams: structure and propagation [PDF]
Journal of Optics, 2019 Non-separable superpositions of polarization and spatial modes in Gaussian beams have shown rich patterns of spatially-variable polarization encoded in the transverse mode of the light, with the potential for many applications. In this work we investigate encoding similar types of superpositions in Bessel beams.
Brianna M Holmes, Enrique J Galvez
openaire +3 more sources
Atom Indonesia, 2015 Neutron diffraction measurement of powder α-Fe sample at 295 K was carried out at the high resolution powder diffractometer installed at Japan Proton Accelerator Research Complex (J-PARC). Crystal parameters were determined from Rietveld analysis.
Y. Ishikawa +5 more
doaj +1 more source
Effects of Structural Parameters on the Dynamics of a Beam Structure with a Beam-Type Vibration Absorber [PDF]
Advances in Acoustics and Vibration, 2012 A beam-type absorber has been known as one of the dynamic vibration absorbers used to suppress excessive vibration of an engineering structure. This paper studies an absorbing beam which is attached through a visco-elastic layer on a primary beam structure.
Mothanna Y. Abd +3 more
openaire +2 more sources
Energy Science & Engineering, 2019 The mechanism and fracture aperture of thick hard roof failure were theoretically analyzed from the perspective of elastoplastic mechanics. A uniform load cantilever beam was established by considering the voussoir beam structure and stress condition ...
Chunwang Zhang +7 more
semanticscholar +1 more source
Symplectic Modeling of Beam Loading in Electromagnetic Cavities [PDF]
Phys. Rev. Accel. Beams 20, 052002 (2017), 2016 Simulating beam loading in radiofrequency accelerating structures is critical for understanding higher-order mode effects on beam dynamics, such as beam break-up instability in energy recovery linacs. Full wave simulations of beam loading in radiofrequency structures are computationally expensive, while reduced models can ignore essential physics and ...
arxiv +1 more source