Results 61 to 70 of about 20,337 (305)

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

Fabrication of phosphor micro-grids using proton beam lithography

, 2006
A new nuclear microscopy technique called ion photon emission microscopy or IPEM was recently invented. IPEM allows analysis involving single ions, such as ion beam induced charge (IBIC) or single event upset (SEU) imaging using a slightly modified ...
Wegdén, Marie, Elfman, Mikael, Kristiansson, Per, Rossi, P, Hearne, SJ, Pallon, Jan,, Elfman, Mikael,, Antolak, AJ, Malmqvist, Klas, Provencio, PP, Doyle, BL, Auzelyte, Vaida, Nilsson, Christer, Kristiansson, Per,, Pallon, Jan   +14 more
core   +2 more sources

Plasma-wave generation and acceleration of electrons by a nondiverging beating optical beam

Physical Review Accelerators and Beams, 2023
Plasma waves can be used to create efficient and small-sized electron accelerators. Despite the already demonstrated success in reaching GeV-scale energy gain in the motion of electrons, laser-induced wakefields still suffer from the transverse spreading
Evgeniia Ponomareva, Andriy Shevchenko
doaj   +1 more source

Wigglers, beam emittance and energy spread [PDF]

, 1979
Wigglers are used in storage rings to increase the beam emittance for maximum luminosity. If, however, a storage ring is used as a synchrotron light source a beam emittance as small as possible is desired. Also in special cases in high energy physics research a large luminosity achieved with wigglers may not be the optimum running configuration ...
openaire   +2 more sources

Down-link beamforming effects on the code orthogonality in UTRA-FDD systems

, 2002
A novel approach in quantifying code orthogonality factor for UTRA-FDD systems is extended in this paper to include the impact of down-link beamforming.
M. Beach, Beach, Mark, Allen, Ben, Hunukumbure, Mythri, B. Allen, Hunukumbure, MR, Beach, MA, Allen, B, M. Hunukumbure   +8 more
core   +1 more source

Code orthogonality for wideband CDMA systems with multiple transmit antennas [PDF]

, 2007
Code orthogonality is a useful indicator in determining the performance of the synchronous downlink of third generation Universal Mobile Telecommunication System (UMTS) Terrestrial Radio Access systems.
Beach, Mark, Mark A. Beach, Allen, Ben, Hunukumbure, Mythri, Allen, BH, Hunukumbure, MR, Mythri Hunukumbure, Beach, MA, Ben Allen   +8 more
core   +1 more source

Beam steering in waveguide arrays

, 2022
S.3247-3249We demonstrate that highly efficient beam steering and switching can be achieved with thermo-optic waveguide arrays. For a given initial excitation, we find the position of the output field to depend on the transverse temperature gradient.
Pertsch, T., Zentgraf, T., Lederer, F., Peschel, U., Bräuer, A.   +4 more
core   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

On compensating tune spread induced by space charge in bunched beams [PDF]

Physical Review Special Topics - Accelerators and Beams, 2014
Space charge effects play significant role in modern-day accelerators. These effects frequently constrain attainable beam parameters in an accelerator - or - in an accelerator chain. They also could limit the luminosity of hadron colliders operating either at low energies or with a sub-TeV high brightness hadron beams.
Vladimir N. Litvinenko, Gang Wang
openaire   +4 more sources

Models of stress at mid-ocean ridges and their offsets [PDF]

, 2000
This thesis aims to investigate the stresses at mid-ocean ridge offsets, and particularly at the particular class of offsets represented by oceanic microplates. Amongthese, the Easter microplate is one of the best surveyed.
Neves, Maria C., Neves, M.C.
core