Results 101 to 110 of about 1,249,922 (287)

Biomimetic Polymerization of Tellurocysteine: Breaking the Natural Amino Acid Radioprotection Limitation

open access: yesAdvanced Science, EarlyView.
Inspired by natural amino acid polymer‐melanin systems, this study strategically incorporated tellurocysteine to develop advanced radiation‐shielding materials. This approach transformed the primary interaction mechanism between melanin‐based materials and incident photons from Compton scattering to the photoelectric effect. Tellurocysteine‐polymerized
Wei Chen   +6 more
wiley   +1 more source

Dwarf Galaxy Integral-field Survey (DGIS): Survey Overview and the Results of a Global Mass–Metallicity Relation

open access: yesThe Astrophysical Journal Supplement Series
Low-mass galaxies are the building blocks of massive galaxies in the framework of hierarchical structure formation. To enable detailed studies of galactic ecosystems in dwarf galaxies by spatially resolving different galactic components, we have carried ...
Xin Li   +13 more
doaj   +1 more source

The ROSAT-ESO Flux Limited X-ray Galaxy Cluster Survey (REFLEX II) I. Newly identified X-ray luminous clusters at z>=0.2

open access: yes, 2011
We report 19 intermediate redshift clusters newly detected in the ROSAT All-Sky survey that are spectroscopically confirmed. They form a part of 911 objects in the REFLEX II cluster catalogue with a limiting flux of 1.8\times10^12 erg/s/cm2 in the 0.1-2 ...
Abell   +16 more
core   +1 more source

Chiral‐Encoded Pt‐Ir Surfaces as Apparent Spin Filter for Enhanced Oxygen Reduction

open access: yesAdvanced Science, EarlyView.
The Chiral‐Induced Spin Selectivity (CISS) effect is employed in chiral‐encoded mesoporous Platinum‐Iridium (Pt‐Ir) electrocatalysts to enhance the oxygen reduction reaction (ORR). A break in spin symmetry leads to a substantial antagonistic difference in activity (>200%) when comparing two enantiomorphs of the same electrode.
Zikkawas Pasom   +5 more
wiley   +1 more source

Strong Prevalence of Hammerhead Velocity Distributions Close to the Heliospheric Current Sheet

open access: yesThe Astrophysical Journal Letters
The solar wind undergoes nonadiabatic heating as it travels away from the Sun. The velocity phase-space distribution of nonequilibrium ions in the solar wind indicates a source of free energy that could contribute significantly to this heating.
Srijan Bharati Das   +15 more
doaj   +1 more source

Multi-wavelength analysis of the dust emission in the Small Magellanic Cloud

open access: yes, 2004
We present an analysis of dust grain emission in the diffuse interstellar medium of the Small Magellanic Cloud (SMC). This study is motivated by the availability of 170 microns ISOPHOT data covering a large part of the SMC, with a resolution enabling to ...
Aguirre   +51 more
core   +2 more sources

Memristive Physical Reservoir Computing

open access: yesAdvanced Science, EarlyView.
Memristors’ nonlinear dynamics and input‐dependent memory effects make them ideal candidates for high‐performance physical reservoir computing (RC). Based on their conductance modulation, memristors can be classified as electronic or optoelectronic types.
Dian Jiao   +9 more
wiley   +1 more source

HST SHEL: Enabling Comparative Exoplanetology with HST/STIS

open access: yesThe Astronomical Journal
The Hubble Space Telescope (HST) has been our most prolific tool to study exoplanet atmospheres. As the age of JWST begins, there are a wealth of HST archival data that are useful to strengthen our inferences from JWST.
Natalie H. Allen   +14 more
doaj   +1 more source

Synergies between exoplanet surveys and variable star research

open access: yesEPJ Web of Conferences, 2017
With the discovery of the first transiting extrasolar planetary system back in 1999, a great number of projects started to hunt for other similar systems. Because the incidence rate of such systems was unknown and the length of the shallow transit events
Kovacs Geza
doaj   +1 more source

Background Rejection in Atmospheric Cherenkov Telescopes using Recurrent Convolutional Neural Networks

open access: yes, 2019
In this work, we present a new, high performance algorithm for background rejection in imaging atmospheric Cherenkov telescopes. We build on the already popular machine-learning techniques used in gamma-ray astronomy by the application of the latest ...
Ohm, S., Parsons, R. D.
core   +1 more source

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