Results 11 to 20 of about 511,715 (269)
Frictional interactions for non‐localized beam‐to‐beam and beam‐inside‐beam contact [PDF]
International Journal for Numerical Methods in Engineering, 2021 AbstractThis contribution presents the extensions of beam‐to‐beam and beam‐inside‐beam contact schemes of the same authors towards frictional interactions. Since the schemes are based on the beams' true surfaces (instead of surfaces implicitly deduced from the beams' centroid lines), the presented enhancements are not only able to account for ...
Magliulo, Marco +3 more
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Coherent beam-beam tune shift of unsymmetrical beam-beam interactions with large beam-beam parameter [PDF]
Physical Review E, 2005 Coherent beam-beam tune shift of unsymmetrical beam-beam interactions was studied experimentally and numerically in HERA where the lepton beam has a very large beam-beam parameter (up to $ξ_y=0.272$). Unlike the symmetrical case of beam-beam interactions, the ratio of the coherent and incoherent beam-beam tune shift in this unsymmetrical case of beam ...
Jin, Lihui +2 more
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The coherent beam-beam interaction [PDF]
Conference Record of the 1991 IEEE Particle Accelerator Conference, 2002 The authors present the results of a new beam-beam simulation program that allows for a self-consistent calculation of the electromagnetic fields of the beams by treating general (non-Gaussian) beam distributions. The simulation program calculates the fields from the coordinates of the test-particles, and does not impose any restrictions on the beam ...
Krishnagopal, S., Siemann, R.H.
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To beam or not to beam: that is the question [PDF]
Dentomaxillofacial Radiology, 2013 After reading the articles by Lione et al,1,2 I was very upset and concerned about the way the authors intentionally misused ionizing radiation to assess the effectiveness of an orthodontic treatment. Both studies were published at a similar time and cover the same unfortunate 17 pre-pubertal children, who had a mean age of only 11.2 years (range 8–14 ...
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Coherent beam-beam interaction with four colliding beams [PDF]
Physical 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
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Simulation of the beam halo from the beam-beam interaction [PDF]
Physical 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
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Investigation of the flat beam model of the beam-beam interaction [PDF]
Proceedings 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
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Behavior of reinforced concrete beams loaded by transversal bending forces [PDF]
Facta Universitatis. Series: Architecture and Civil Engineering, 2013 Based on the experimental research on the beams MB 25 and MB 80 to short term load and long term load, the assumption that the truss theory is based on the actual behavior of reinforced concrete beams loaded by bending until failure cannot be ...
Radojičić Vladimir
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Vibrations of cracked reinforced and prestressed concrete beams [PDF]
Facta Universitatis. Series: Architecture and Civil Engineering, 2008 The dynamic behaviour of bent reinforced concrete beams in elastic range is significantly influenced by cracks caused by former loads. Considering this fact a more accurate calculation of the eigenfrequencies of the beams is available.
Huszár Zsolt
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Cumhuriyet Science Journal, 2021 The present paper is concerned with the determination of the frequency equation and sensitivity of the eigenfrequencies of a fixed-free longitudinally vibrating rod and transversally vibrating beam carrying a tip mass by using several methods.
Aydın Demir
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