Results 61 to 70 of about 532,100 (342)

Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control

Advanced Engineering Materials, EarlyView.
This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian, Frédéric Demoly, Mohammad Lakhi, Bernard Rolfe, Mahdi Bodaghi   +4 more
wiley   +1 more source

Single-shot determination of spin-polarization for ultrarelativistic electron beams via nonlinear Compton scattering

, 2019
Impacts of spin-polarization of an ultrarelativistic electron beam head-on colliding with a strong laser pulse on emitted photon spectra and electron dynamics have been investigated in the quantum radiation regime.
Guo, Ren-Tong, Hatsagortsyan, Karen Z., Li, Jian-Xing, Li, Yan-Fei, Shaisultanov, Rashid   +4 more
core   +1 more source

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

Beam Dynamics Design of a Multi-Ion RFQ for Medical Application

Applied Sciences
Particle radiotherapy based on the medical accelerator is emerging as a major treatment for cancer. To enhance the clinical flexibility of particle radiotherapy and further promote the use of medical accelerators, the Shanghai Institute of Applied ...
Xinran Wang, Guiling Cao, Wenzhi Zhang
doaj   +1 more source

Femtosecond timing-jitter between photo-cathode laser and ultra-short electron bunches by means of hybrid compression

New Journal of Physics, 2016
The generation of ultra-short electron bunches with ultra-low timing-jitter relative to the photo-cathode (PC) laser has been experimentally proved for the first time at the SPARC_LAB test-facility (INFN-LNF, Frascati) exploiting a two-stage hybrid ...
R Pompili, M P Anania, M Bellaveglia, A Biagioni, G Castorina, E Chiadroni, A Cianchi, M Croia, D Di Giovenale, M Ferrario, F Filippi, A Gallo, G Gatti, F Giorgianni, A Giribono, W Li, S Lupi, A Mostacci, M Petrarca, L Piersanti, G Di Pirro, S Romeo, J Scifo, V Shpakov, C Vaccarezza, F Villa   +25 more
doaj   +1 more source

Beam exchange of a circulator cooler ring with an ultrafast harmonic kicker

Physical Review Accelerators and Beams, 2021
In this paper, we describe a harmonic kicker system used in the beam exchange scheme for the circulator cooling ring (CCR) of the Jefferson Lab Electron-Ion Collider.
Gunn Tae Park, Jiquan Guo, Robert A. Rimmer, Haipeng Wang, Shaoheng Wang   +4 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Short-Pulse, Compressed Ion Beams at the Neutralized Drift Compression Experiment

, 2016
We have commenced experiments with intense short pulses of ion beams on the Neutralized Drift Compression Experiment (NDCX-II) at Lawrence Berkeley National Laboratory, with 1-mm beam spot size within 2.5 ns full-width at half maximum.
Barnard, John J, Davidson, Ronald C, Friedman, Alex, Gilson, Erik P, Grote, David, Ji, Qing, Kaganovich, I D, Persaud, Arun, Schenkel, Thomas, Seidl, Peter A, Waldron, William L   +10 more
core   +1 more source

Linac Beam Dynamics Code Benchmarking

Journal of Modern Physics, 2015
The code benchmarking for hadron linac using the 3D Particle-In-Cell (PIC) code is an important task in the European framework “High Intensity Pulsed Proton Injector” (HIPPI). PARMILA and HALODYN are two of the codes involved in this work. Both of these codes have been developed and used for linac design and beam dynamics studies.
Yin X., Bayer W., Franchi A.
openaire   +3 more sources

Adjustment of Coatings Morphology and Particle Distribution of Layered Silicates by Freeze‐Drying for Improved Gas Barriers

Advanced Engineering Materials, EarlyView.
Freeze‐drying of layered silicate is the key to get coatings with superior gas barrier. Freeze‐drying of layered silicates modified with dodecylamine (DDA) is a highly effective technique for the preparation of barrier pigments that significantly mitigate the permeation of oxygen, water vapor, and hydrogen through polymer films containing these ...
Joshua Lommes, Moritz Bätcher, Andrea Deißenberger, Volkmar Stenzel, Andreas Hartwig   +4 more
wiley   +1 more source