Results 41 to 50 of about 3,411,943 (277)

A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation

open access: yesAdvanced Engineering Materials, EarlyView.
A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler   +4 more
wiley   +1 more source

The Dust-to-Gas Ratio, Size Distribution, and Dust Fall-Back Fraction of Comet 67P/Churyumov-Gerasimenko: Inferences From Linking the Optical and Dynamical Properties of the Inner Comae

open access: yesFrontiers in Physics, 2020
In this work, we present results that simultaneously constrain the dust size distribution, dust-to-gas ratio, fraction of dust re-deposition, and total mass production rates for comet 67P/Churyumov-Gerasimenko.
Raphael Marschall   +7 more
doaj   +1 more source

Predictions of the solar wind interaction with Comet Grigg-Skjellerup [PDF]

open access: yes, 1992
The planned encounter of the Giotto spacecraft with comet Grigg-Skjellerup on 10th July 1992 promises to extend our knowledge of the solar wind interaction with comets substantially.
Johnstone, AD   +2 more
core  

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Strain Partitioning and Fault Kinematics in the Northern Qilian Shan (NE Tibet) Determined From Bayesian Inference of Geodetic Data

open access: yesGeophysical Research Letters
Oblique convergence across the northern Qilian Shan is accommodated by sub‐parallel strike‐slip and thrust faults that ruptured simultaneously in the Mw 8 Gulang earthquake in 1927.
Yingfeng Zhang   +3 more
doaj   +1 more source

Progress towards COMET Phase-I [PDF]

open access: yes, 2015
The COMET experiment is designed to search for flavour violation in the charged lepton sector, via the coherent neutrinoless process +A e+A, which can probe a wide variety of BSM physics. Using the new high-power proton beam at J-PARC, the sensitivity of
COMET Collaboration, .   +1 more
core   +1 more source

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin   +6 more
wiley   +1 more source

Linking Polyelectrolyte Modification and Enzyme‐Catalyzed Phenolic Acid Functionalization of Cellulose Fiber for Functional Foams

open access: yesAdvanced Materials Technologies, EarlyView.
Cellulose fibers functionalized using cationic poly(Dimethyldiallylammonium chloride) (polyDADMAC) and laccase‐mediated ferulic acid system are processed into foams using different surfactants (Anionic, cationic, and non‐ionic). Fiber–surfactant interactions influence foam stabilization and porous structure formation during convective drying, producing
Abirami Senthil   +4 more
wiley   +1 more source

Recurrent Cometary Activity Discovered on Quasi-Hilda Jupiter Family Comet 362P/(457175) 2008 GO98

open access: yesThe Astrophysical Journal Letters
We report the discovery of recurrent activity on quasi-Hilda comet (QHC) 362P/(457175) 2008 GO _98 . The first activity epoch was discovered during the perihelion passage of 362P in 2016, so we were motivated to observe it for recurrent cometary activity
Kennedy A. Farrell   +7 more
doaj   +1 more source

Comet: An internet based platform for education in measurement [PDF]

open access: yes, 2005
The project COMET provides a multimedia training package for metrology and measurement. The package is developed by a consortium of 10 institutes from 7 European countries.
Regtien, Paulus P.L.   +4 more
core   +2 more sources

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