Results 31 to 40 of about 371,884 (292)

Coherent beam-beam interaction with four colliding beams [PDF]

open access: yesPhysical Review E, 1995
The coherent beam-beam interaction in the absence of Landau damping is studied with a computer simulation of four space-charge-compensated colliding beams. Results are presented for the modes, phase space structures, widths, and growth rates of coherent beam-beam resonances.
, Podobedov, , Siemann
openaire   +2 more sources

Nonparaxial accelerating Bessel-like beams [PDF]

open access: yes, 2013
A new class of nonparaxial accelerating optical waves is introduced. These are beams with a Bessel-like profile that are capable of shifting laterally along fairly arbitrary trajectories as the wave propagates in free space.
Chremmos, Ioannis   +5 more
core   +1 more source

Low-dimensional non-metal catalysts: principles for regulating p-orbital-dominated reactivity

open access: yesnpj Computational Materials, 2021
Activation of p-block elements to replace the rare and precious transition metals for renewable energy applications is highly desirable. In this review, we go over recent experimental and theoretical progress on the low-dimensional non-metal materials ...
Si Zhou   +5 more
doaj   +1 more source

Simulation of the beam halo from the beam-beam interaction [PDF]

open access: yesPhysical Review E, 1994
A technique for simulating the beam halo in circular ${\mathit{e}}^{+}$${\mathit{e}}^{\mathrm{\ensuremath{-}}}$ colliders is introduced, tested, and applied. Amplitude space is divided into core and halo regions, and only halo particles are tracked saving a factor of 100 or more in CPU time.
, Chen, , Irwin, , Siemann
openaire   +2 more sources

Investigation of the flat beam model of the beam-beam interaction [PDF]

open access: yesProceedings of the 2003 Bipolar/BiCMOS Circuits and Technology Meeting (IEEE Cat. No.03CH37440), 2003
At the interaction point of a storage ring collider each beam is subject to perturbations due to the electromagnetic field of the counterrotating beam. For flat beams, a well-known approximation models the beam by a current sheet which is uniform in the horizontal plane, restricting the particle motion to the vertical direction. In this classical model
Bjoern S. Schmekel   +2 more
openaire   +3 more sources

Influence of section depth on the structural behaviour of reinforced concrete continuous deep beams [PDF]

open access: yes, 2007
YesAlthough the depth of reinforced concrete deep beams is much higher than that of slender beams, extensive existing tests on deep beams have focused on simply supported beams with a scaled depth below 600 mm.
Yang, Keun-Hyeok, Ashour, Ashraf
core   +1 more source

Effect of Wire-Mesh Type on Strengthening Reinforced Concrete Beams [PDF]

open access: yesEngineering and Technology Journal, 2022
Structural strengthening is a method of application to raise the load-ability capacity of building structures to meet the building's need to carry additional and unexpected loads that were not accounted for in the main design. In this study, Ferro-cement
Basil S. Al-Shathr   +2 more
doaj   +1 more source

Basalt FRP Spike Repairing of Wood Beams [PDF]

open access: yes, 2015
This article describes aspects within an experimental program aimed at improving the structural performance of cracked solid fir-wood beams repaired with Basalt Fiber Reinforced Polymer (BFRP) spikes.
Luca Righetti   +5 more
core   +1 more source

Paroxysmal hemicrania as the clinical presentation of giant cell arteritis

open access: yesClinics and Practice, 2011
Head pain is the most common complaint in patients with giant cell arteritis but the headache has no distinct diagnostic features. There have been no published reports of giant cell arteritis presenting as a trigeminal autonomic cephalalgia.
Jennifer L. Beams, Todd D. Rozen
doaj   +1 more source

Mosques with Flat Beam Ceiling of the Crimean Kha­nate Period

open access: yesЗолотоордынское обозрение, 2021
Research objectives: To study a group of mosques of Crimean Khanate’s period, namely, buildings with a flat beamed ceiling. To highlight various options for planning buildings and to search for their analogies.
Zilivinskaya E.D.
doaj   +1 more source

Home - About - Disclaimer - Privacy