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Improvement of reversible compressibility of ultralight carbon nanotube/carboxymethyl cellulose materials through hydrophobic surface treatment [PDF]

open access: yesScience and Technology of Advanced Materials
The mechanical properties of ultralight materials are influenced by their constituent materials, internal porous structures, and surface states. The surface chemical state is particularly crucial for materials composed of hydrophilic polymers such as ...
Reo Yanagi   +4 more
doaj   +2 more sources

Solar Radio Emissions and Ultralight Dark Matter

open access: yesUniverse, 2023
Ultralight axions and dark photons are well-motivated dark matter candidates. Inside the plasma, once the mass of ultralight dark matter candidates equals the plasma frequency, they can resonantly convert into electromagnetic waves, due to the coupling ...
Haipeng An, Shuailiang Ge, Jia Liu
exaly   +3 more sources

Rib‐Reinforced Ultralight and Ultra‐Strong Shell Lattices [PDF]

open access: yesAdvanced Science
Shell lattices are promising candidates for lightweight multifunctional applications for their geometric uniqueness and distinct mechanical properties. However, due to the transition from yielding‐to‐buckling failure mode, shell lattices exhibit notably ...
Winston Wai Shing Ma   +6 more
doaj   +2 more sources

Ultralight Ceramic Fiber Aerogel for High-Temperature Thermal Superinsulation

open access: yesNanomaterials, 2023
Emerging fiber aerogels with excellent mechanical properties are considered as promising thermal insulation materials. However, their applications in extreme environments are hindered by unsatisfactory high-temperature thermal insulation properties ...
Fengqi Liu   +6 more
doaj   +1 more source

Constraints on ultralight scalar dark matter with quadratic couplings

open access: yesJournal of High Energy Physics, 2023
Ultralight dark matter is a compelling dark matter candidate. In this work, we examine the impact of quadratically-coupled ultralight dark matter on the predictions of Big Bang Nucleosynthesis.
Thomas Bouley   +2 more
doaj   +1 more source

Determination of loads in the ultralight helicopter blades

open access: yesAviation, 2023
The article describes research that was carried out on coaxial a single-seat ultralight helicopter Rotorschmiede VA-115 which is manufactured by German firm RS Helikopter GmbH.
Vitaly Dudnik
doaj   +1 more source

Universal mass scale for bosonic fields in multi-brane worlds

open access: yesPhysics Letters B, 2022
In this paper we find an universal mass scale for all q-forms in multi-brane worlds model. It is known that this model provides an ultralight mode for the fields. However, to get this, the Lagrangians considered in the literature are not covariant.
R.I. de Oliveira Junior, G. Alencar
doaj   +1 more source

Light-induced levitation of ultralight carbon aerogels via temperature control

open access: yesScientific Reports, 2021
We demonstrate that ultralight carbon aerogels with skeletal densities lesser than the air density can levitate in air, based on Archimedes' principle, when heated with light.
Reo Yanagi   +3 more
doaj   +1 more source

The Ultralight project: the network as an integrated and managed resource for data-intensive science [PDF]

open access: yes, 2005
Looks at the UltraLight project which treats the network interconnecting globally distributed data sets as a dynamic, configurable, and closely monitored resource to construct a next-generation system that can meet the high-energy physics community's ...
Bunn, Julian   +12 more
core   +1 more source

Quantum enhanced metrology in the search for fundamental physical phenomena

open access: yesSciPost Physics Lecture Notes, 2022
These notes summarize lectures given at the 2019 Les Houches summer school on Quantum Information Machines. They describe and review an application of quantum metrology concepts to searches for ultralight dark matter.
Konrad W. Lehnert
doaj   +1 more source

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