Results 41 to 50 of about 16,280 (210)

Reheating-temperature independence of cosmological baryon asymmetry in Affleck-Dine leptogenesis [PDF]

open access: yes, 2001
In this paper we point out that the cosmological baryon asymmetry in our universe is generated almost independently of the reheating temperature $T_R$ in Affleck-Dine leptogenesis and it is determined mainly by the mass of the lightest neutrino, $m_ ...
A. de Gouvea   +41 more
core   +2 more sources

Ultralight Accidents in the US, UK, and Portugal

open access: yesSafety, 2018
Ultralight accidents are reported to be more severe compared to those in other categories of sports aviation. In the absence of denominator data in the United States (US) but addressing a continuing concern in general aviation safety, this study gives a ...
Alex de Voogt   +4 more
doaj   +1 more source

The Motivation, Architecture and Demonstration of Ultralight Network Testbed [PDF]

open access: yes, 2006
In this paper we describe progress in the NSF-funded Ultralight project and a recent demonstration of Ultralight technologies at SuperComputing 2005 (SC|05).
Bourilkov, Dimitri   +13 more
core  

Stabilization of Miscible Aqueous Phases via Diffusion‐Controlled Multifunctional Nanoparticle‐Ligand Complexation

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a versatile approach to harnessing miscible aqueous domains, enabling liquid‐in‐liquid compartmentalization using a barrier formed in situ rather than bulk immiscibility. The barrier forms upon the complexation of multifunctional nanoparticles and ligands at the contact boundary of aqueous phases.
Seyyed Alireza Hashemi   +7 more
wiley   +1 more source

Light and ultralight electric vehicles [PDF]

open access: yes, 2010
Today electrical vehicles are again considered seriously. However, one is not yet used to their performance. An overview is given in what one can expect from electric vehicles, ranging from electric bicycles to the electrical SUV.
Van den Bossche, Alex
core  

Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control

open access: yesAdvanced Functional Materials, EarlyView.
A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong   +7 more
wiley   +1 more source

Ultralight, Washable, and Antibacterial Ultrafine Fiber Sponges by Direct Electrospinning for High‐Performance Warmth Retention

open access: yesMacromolecular Materials and Engineering
Extreme low temperature imposes huge burden on both societal security and the global economy, thus requiring advanced warmth retention materials to protect human from the cold environment.
Hongyu Wu   +6 more
doaj   +1 more source

Ultralight Magnetic Nanofibrous GdPO4 Aerogel [PDF]

open access: yesACS Omega, 2020
Anisotropic aerogels are promising bulk materials with a porous 3D structure, best known for their large surface area, low density, and extremely low thermal conductivity. Herein, we report the synthesis and some properties of ultralight magnetic nanofibrous GdPO4 aerogels. Our proposed GdPO4 aerogel synthesis route is eco-friendly and does not require
Matas Janulevicius   +8 more
doaj   +4 more sources

PyUltraLight: A Pseudo-Spectral Solver for Ultralight Dark Matter Dynamics

open access: yes, 2018
PyUltraLight simulates the dynamics of ultralight dark matter in a non-expanding background. PyUltraLight can describe the evolution of several interacting ultralight dark matter halos or one or more halos orbiting a central, fixed Newtonian potential ...
Easther, Richard   +3 more
core   +1 more source

Reactive Laser Additive Manufacturing of Hierarchically Structured Aerogels

open access: yesAdvanced Materials, EarlyView.
Reactive laser additive manufacturing transforms printing into a chemically active synthesis step. Salt‐enabled transient reaction environments drive in situ formation of hierarchically structured graphitic aerogels with microtubular and nanoscale features in seconds.
Shuichiro Hayashi   +6 more
wiley   +1 more source

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