Results 71 to 80 of about 1,063,912 (284)

The sky brightness and transparency in i-band at Dome A, Antarctica

open access: yes, 2011
The i-band observing conditions at Dome A on the Antarctic plateau have been investigated using data acquired during 2008 with the Chinese Small Telescope ARray. The sky brightness, variations in atmospheric transparency, cloud cover, and the presence of
A. M. Moore   +33 more
core   +1 more source

Infrared Nanocrystals for Space Application: Hardness to Irradiations

open access: yesAdvanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret   +22 more
wiley   +1 more source

Sky

open access: yes
This chapter assesses the possibility of a liberated sky, or a sky that is no longer the exclusive domain of humanistic projections of meanings, concepts, and futures. It considers Virginia Woolf's final, unfinished novel as proto-Anthropocenic thought and as a means of imagining (with) the other side of human extinction.
Daniel Kunth, Elena Terlevich
  +6 more sources

Observing Visibility and Sky Color [PDF]

open access: yes, 2003
The purpose of this activity is to observe, document, and classify changes in visibility and sky color over time and to understand the relationship between sky color, visibility, and aerosols in the atmosphere.
The GLOBE Program, UCAR (University Corporation for Atmospheric Research)
core  

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

open access: yesAdvanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky   +3 more
wiley   +1 more source

‘The Plastic Nile’: First Evidence of Microplastic Contamination in Fish from the Nile River (Cairo, Egypt)

open access: yesToxics, 2020
The presence of microplastics (MPs) in the world’s longest river, the Nile River, has yet to be reported. This small-scale study aimed to provide the first information about MPs in the Nile River by sampling the digestive tracts of two fish species,
Farhan R. Khan   +6 more
doaj   +1 more source

A note on the large-angle anisotropies in the WMAP cut-sky maps

open access: yes, 2007
Recent analyses of the WMAP data seem to indicate the possible presence of large-angle anisotropy in the Universe. If confirmed, these can have important consequences for our understanding of the Universe.
A. BERNUI   +10 more
core   +1 more source

My Blue Sky

open access: yesNew England Journal of Medicine, 2020
My Blue Sky This Graphic Perspective tells the story of a pregnant nurse who goes into labor in the midst of the Covid-19 pandemic.
Jayawardena, Asitha D. L.   +1 more
openaire   +2 more sources

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

open access: yesAdvanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa   +3 more
wiley   +1 more source

Full-sky CMB lensing reconstruction in presence of sky-cuts

open access: yes, 2013
We consider the reconstruction of the CMB lensing potential and its power spectrum of the full sphere in presence of sky-cuts due to point sources and Galactic contaminations. Those two effects are treated separately.
Benabed, Karim   +5 more
core   +3 more sources

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