Results 151 to 160 of about 1,332,482 (305)

The QCD axion sum rule

open access: yesJournal of High Energy Physics
We demonstrate that the true QCD axion that solves the strong CP problem can be found in all generality outside the customary standard QCD band, with QCD being the sole source of Peccei-Quinn breaking.
Belén Gavela   +2 more
doaj   +1 more source

On the Investigation of a Sustainable Two Step Laser‐Based Surface Treatment for the Functionalization of Additive Manufactured Ti–6Al–4V Components

open access: yesAdvanced Engineering Materials, EarlyView.
This study developed a two‐step laser‐based process for sustainable surface treatment of Ti–6Al–4 V components, combining laser polishing and direct laser interference patterning with ns and ps pulses. Key findings include significant roughness reduction, hierarchical patterning with ps pulses, and improved homogeneity. A cost function is developed for
Ignacio Tabares   +7 more
wiley   +1 more source

Searching for axion forces with spin precession in atoms and molecules

open access: yesJournal of High Energy Physics
We propose to use atoms and molecules as quantum sensors of axion-mediated monopole-dipole forces. We show that electron spin precession experiments using atomic and molecular beams are well-suited for axion searches thanks to the presence of co ...
Prateek Agrawal   +4 more
doaj   +1 more source

Designing a New Apparatus for Measuring Particle Sizes of Nanometer Order by Light-scattering (3rd Report)

open access: diamond, 1993
Yuzo Mori   +7 more
openalex   +2 more sources

Magnetoactive Metamaterials: A State‐of‐the‐Art Review

open access: yesAdvanced Engineering Materials, EarlyView.
Magnetoactive metamaterials combine magnetoactive composites with architected metastructures to enable contactless, tunable control of mechanical, acoustic, and elastic properties. This review highlights recent advances in their design, fabrication, and applications in soft robotics, biomedical devices, and adaptive structures and outlines future ...
Seyyedmohammad Aghamiri, Ramin Sedaghati
wiley   +1 more source

Ponderomotive effects of ultralight dark matter

open access: yesJournal of High Energy Physics
I exhibit a new class of quadratic effects of ultralight dark matter. Axions, dark photons, and dilatons can exert rapidly oscillating forces, torques, and mass shifts on Standard Model particles.
Kevin Zhou
doaj   +1 more source

Multimodal Characterization of Sn‐Bi Solder Alloy Solidification Using Synchrotron X‐Ray Microtomography and Energy Dispersive Diffraction

open access: yesAdvanced Engineering Materials, EarlyView.
Real‐time imaging and energy‐dispersive diffraction during solidification of Sn‐Bi alloy interconnect for electronic packaging applications are studied. Sn‐Bi solder alloys have generated significant interest in recent times due to their potential use in electronic packaging.
Amey Luktuke   +3 more
wiley   +1 more source

Bioinspired Materials, Designs, and Manufacturing Strategies for Advanced Impact‐Resistant Helmets

open access: yesAdvanced Engineering Materials, EarlyView.
This review explores how bioinspired materials, structures, and manufacturing strategies transform helmet design to achieve enhanced impact resistance. Drawing inspiration from nacre, porcupine quills, beetle exoskeletons, and skull architectures, it highlights advances in auxetic lattices, nanocomposites, and functionally graded foams.
Joseph Schlager   +4 more
wiley   +1 more source

A Novel Simplified Approach to Physically Simulate Wire‐Arc Directed Energy Deposition Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
Scarcity of specialized titanium alloy wires and high experimental wire production costs impedes wire‐arc directed energy deposition (waDED) adoption in industry. A novel, wireless approach is introduced to accelerate and economize titanium alloy development.
Martin Klein   +4 more
wiley   +1 more source

Light absorption and scattering by particles and CDOM at the New England shelfbreak front [PDF]

open access: bronze, 2005
Robert Vaillancourt   +5 more
openalex   +1 more source

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