Results 11 to 20 of about 20,337 (305)

Engineering implementation of permanent magnet uniform spreading system for 3 MeV electron beam accelerator

open access: yesNuclear Engineering and Technology
Electron radiation technology, a significant application of non-power civil nuclear technology, opens up various research opportunities for electron beam accelerators as radiation sources.
Zijian Zhou   +6 more
doaj   +2 more sources

Effects of Anisotropic Turbulent Ocean on Propagation of Asymmetric Bessel-Gaussian Beam

open access: yesIEEE Photonics Journal
Aiming at the propagation of asymmetric vortex beam, we investigate the spreading and wander characteristics of asymmetric Bessel-Gaussian beam in oceanic turbulence. Based on the cross-spectral density and Wigner distribution function of beam field, the
Lin Yu   +3 more
doaj   +2 more sources

The Spreading Residue Harmonic Balance Method for Strongly Nonlinear Vibrations of a Restrained Cantilever Beam [PDF]

open access: yesAdvances in Mathematical Physics, 2017
The exact solutions of the nonlinear vibration systems are extremely complicated to be received, so it is crucial to analyze their approximate solutions.
Y. H. Qian   +3 more
doaj   +2 more sources

On the analysis of switched-beam antennas for the W-CDMA downlink [PDF]

open access: yes, 2004
Smart antennas are widely recognized as an enabling technology for addressing the demand of future wireless network capacity when employed in place of traditional fixed-coverage sector antennas.
Beach, Mark   +5 more
core   +1 more source

New Theoretical Model of the Irradiance Distribution in Water from a Unidirectional Point Source

open access: yesJournal of Marine Science and Engineering, 2020
Formulas are presented for calculating the irradiance field, which is formed in a turbid medium with a narrow scattering phase function and homogeneous optical properties when an infinitely narrow light beam passes through it.
Lev S. Dolin
doaj   +1 more source

Random pulse source with the temporal multi-complex degree of coherence

open access: yesResults in Physics, 2023
Based on the coherence theory, the non-stationary optical fields with the complex degree of coherence (CDOC) are expanded from stationary fields, and random pulse sources with temporal multi-complex degree of coherence (TMCDOC) is introduced. Theoretical
Zhenhua Du, Huilong Liu
doaj   +1 more source

Beam spreading and spatial resolution in thick organic specimens [PDF]

open access: yesUltramicroscopy, 2006
Extended abstract of a paper presented at Microscopy and Microanalysis 2006 in Chicago, Illinois, USA, July 30 – August 3 ...
Jerome K, Hyun   +2 more
openaire   +2 more sources

Accurate measurement of uncorrelated energy spread in electron beam [PDF]

open access: yesPhysical Review Accelerators and Beams, 2021
Physical review accelerators and beams 24(6), 064201 (2021).
Sergey Tomin   +4 more
openaire   +4 more sources

Implant-Defined 3 $\times$ 3 In-Phase Coherently Coupled Vertical Cavity Surface Emitting Lasers Array

open access: yesIEEE Photonics Journal, 2013
Two-dimensional in-phase coherently coupled vertical cavity surface emitting laser (VCSEL) array with high beam quality was fabricated by proton implantation.
Ming-Ming Mao   +8 more
doaj   +1 more source

Unambiguous Wind Direction Estimation Method for Shipborne HFSWR Based on Wind Direction Interval Limitation

open access: yesRemote Sensing, 2023
Due to its maneuverability and agility, the shipborne high-frequency surface wave radar (HFSWR) provides a new way of monitoring large-area marine dynamics and environment information.
Yunfeng Zhang   +3 more
doaj   +1 more source

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