Results 81 to 90 of about 3,754,015 (306)

Beam-dust interactions in an e^{+}e^{−} collider

Physical Review Accelerators and Beams
In recent electron-positron colliders designed and operated with very low emittance and high current, the energy density of the beam has increased significantly compared to earlier designs.
Kazuhito Ohmi, Hitoshi Fukuma, Shinji Terui   +2 more
doaj   +1 more source

Beam ion instability: Measurement, analysis, and simulation

Physical Review Special Topics. Accelerators and Beams, 2013
A weak vertical coupled-bunch instability with oscillation amplitude of the order of a few μm has been observed in SPEAR3 at nominal vacuum pressure. The instability becomes stronger with increasing neutral gas pressure as observed by turning off vacuum ...
L. Wang, J. Safranek, Y. Cai, J. Corbett, R. O. Hettel, T. O. Raubenheimer, J. Schmerge, J. Sebek   +7 more
doaj   +1 more source

Filling pattern dependence of regenerative beam breakup instability in energy recovery linacs

Physical Review Accelerators and Beams, 2021
Beam breakup instability is a potential issue for all particle accelerators and is often the limiting factor for the maximum beam current that can be achieved.
S. Setiniyaz, R. Apsimon, P. H. Williams   +2 more
doaj   +1 more source

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

Advanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier, Moritz Blum, Luana Caron, Alisa Chirkova, Philipp Cimiano, Basil Ell, Inga Ennen, Michael Feige, Maik Gaerner, Thomas Hilbig, Andreas Hütten, Günter Reiss, Tapas Samanta, Sonja Schöning, Christian Schröder, Lennart Schwan, Chris Taake, Martin Wortmann   +17 more
wiley   +1 more source

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

, 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, Allen, Ben, Allen, BH, Beach, M, Beach, MA, Allen, B   +5 more
core   +1 more source

Dust-induced beam losses in the cryogenic arcs of the CERN Large Hadron Collider

Physical Review Accelerators and Beams, 2022
The interaction of dust particles with the LHC proton beams accounts for a major fraction of irregular beam loss events observed in LHC physics operation.
A. Lechner, P. Bélanger, I. Efthymiopoulos, L. Grob, B. Lindstrom, R. Schmidt, D. Wollmann   +6 more
doaj   +1 more source

Coherent beam-beam interactions in electron-positron colliders [PDF]

Physical Review Letters, 1991
We present the results of a new calculational technique that evaluates the beam-beam force due to an arbitrary charge distribution. We find coherent instabilities that dominate at certain operating points and depend strongly on the degree of damping in the system.
, Krishnagopal, , Siemann
openaire   +2 more sources

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Mitigation of the kink instability in the energy recovery linac based electron-ion collider

Physical Review Special Topics. Accelerators and Beams, 2013
Beam-beam effects in eRHIC, the proposed energy recovery linac (ERL)-based electron-ion collider (EIC) at BNL, have several unique features distinguishing them from those in hadron and lepton colliders.
Yue Hao, Vladimir N. Litvinenko, Vadim Ptitsyn   +2 more
doaj   +1 more source

The PRIMA Thesaurus for Materials Science and Engineering

Advanced Engineering Materials, EarlyView.
The PRIMA Thesaurus is a structured vocabulary designed to improve how materials science data is described and shared. Developed with input from multiple experts, it enables clear documentation of research workflows, data exchange, and reuse across platforms.
Rossella Aversa, Alexey Boubnov, Dario De Angelis, Catriona Eschke, Maximilian Kabbe, Felix Kraus, Mirco Panighel, Richard Thelen, Davide Valentinis   +8 more
wiley   +1 more source