Results 11 to 20 of about 16,280 (210)

The Design and Demonstration of the Ultralight Testbed [PDF]

open access: yes2006 3rd International Conference on Broadband Communications, Networks and Systems, 2006
In this paper we present the motivation, the design, and a recent demonstration of the UltraLight testbed at SC|05. The goal of the Ultralight testbed is to help meet the data-intensive computing challenges of the next generation of particle physics ...
Bourilkov, Dimitri   +13 more
core   +4 more sources

Prospect of ultralight airplanes development [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2015
The article presents characteristic of ultralight airplanes, rules and current interest of them. The purpose is to determine prospect of ultralight airplanes development on the basis of Civil Aviation Authority statistics analysis and trend of aviation ...
Adam KONICZEK, Robert KONIECZKA
doaj   +2 more sources

Ultralight Scalars and Spiral Galaxies [PDF]

open access: yesModern Physics Letters A, 2001
We study some possible astrophysical implications of a very weakly coupled ultralight dilaton-type scalar field. Such a field may develop an (approximately stable) network of domain walls.
Dvali G.   +9 more
core   +6 more sources

Mass Generation for an Ultralight Axion [PDF]

open access: yesPhysical Review D, 1999
If a global chiral symmetry is explicitly broken by anomalies in nonabelian gauge theories, a pseudo Nambu-Goldstone boson (axion) associated with a spontaneous breakdown of such a global symmetry acquires a mass through nonperturbative instanton effects.
Nomura, Yasunori   +2 more
core   +5 more sources

Decay of Ultralight Axion Condensates [PDF]

open access: yesJournal of High Energy Physics, 2018
Axion particles can form macroscopic condensates, whose size can be galactic in scale for models with very small axion masses $m\sim10^{-22}$ eV, and which are sometimes referred to under the name of Fuzzy Dark Matter.
Eby, Joshua   +3 more
core   +4 more sources

Thraxions: ultralight throat axions [PDF]

open access: yesJournal of High Energy Physics, 2019
We argue that a new type of extremely light axion is generically present in the type IIB part of the string theory landscape. Its mass is suppressed by the third power of the warp factor of a strongly warped region (Klebanov-Strassler throat), suggesting
Arthur Hebecker   +3 more
doaj   +5 more sources

Strongly-interacting ultralight millicharged particles

open access: yesPhysics Letters B, 2021
We consider the implications of an ultra-light fermionic dark matter candidate that carries baryon number. This naturally arises if dark matter has a small charge under standard model baryon number whilst having an asymmetry equal and opposite to that in
Stephon Alexander   +2 more
doaj   +3 more sources

Ultralight fermionic dark matter [PDF]

open access: yesPhysical Review D, 2021
Conventional lore from Tremaine and Gunn excludes fermionic dark matter lighter than a few hundred eV, based on the Pauli exclusion principle. We highlight a simple way of evading this bound with a large number of species that leads to numerous non-trivial consequences.
Hooman Davoudiasl   +2 more
openaire   +2 more sources

Ultralight Ultrafast Enzymes**

open access: yesAngewandte Chemie, 2023
Abstract Inorganic materials depleted of heavy stable isotopes are known to deviate strongly in some physicochemical properties from their isotopically natural counterparts. Here we explored for the first time the effect of simultaneous depletion of the heavy carbon, hydrogen, oxygen and nitrogen isotopes on the ...
Xuepei Zhang   +11 more
openaire   +3 more sources

Ultralight metal foams [PDF]

open access: yesScientific Reports, 2015
AbstractUltralight (<10 mg/cm3) cellular materials are desirable for thermal insulation; battery electrodes; catalyst supports; and acoustic, vibration, or shock energy damping. However, most of these ultralight materials, especially ultralight metal foams, are fabricated using either expensive materials or complicated procedures, which greatly ...
Bin Jiang   +5 more
openaire   +2 more sources

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