Results 61 to 70 of about 2,410,070 (200)

Dry‑Contact Trimming for All‑Perovskite Tandem Solar Cells via Solid‑Solution Homogenization

Advanced Energy Materials, EarlyView.
Narrow‐bandgap Sn–Pb perovskites are promising bottom absorbers for all‐perovskite tandems but suffer from Sn‐rich surfaces and depth‐dependent lattice/compositional inhomogeneity. Layered‐perovskite‐assisted dry‐contact trimming removes Sn‐rich surface species and reconfigures the Sn–Pb absorber, enabling efficient charge collection, reduced voltage ...
Woocheol Han, Hyojin Hong, Chan Young Kim, Chan Ho Shin, Sung Yong Kim, So Eun Shin, Minhyeok Park, Giseon Yu, Sohyun Kang, Seungmin Lee, Jun Hong Noh   +10 more
wiley   +1 more source

ULTRASAT: A Wide-field Time-domain UV Space Telescope

The Astrophysical Journal
The Ultraviolet Transient Astronomy Satellite (ULTRASAT) is scheduled to be launched to geostationary orbit in 2027. It will carry a telescope with an unprecedentedly large field of view (204 deg ^2 ) and near-ultraviolet (NUV; 230–290 nm) sensitivity ...
Y. Shvartzvald, E. Waxman, A. Gal-Yam, E. O. Ofek, S. Ben-Ami, D. Berge, M. Kowalski, R. Bühler, S. Worm, J. E. Rhoads, I. Arcavi, D. Maoz, D. Polishook, N. Stone, B. Trakhtenbrot, M. Ackermann, O. Aharonson, O. Birnholtz, D. Chelouche, D. Guetta, N. Hallakoun, A. Horesh, D. Kushnir, T. Mazeh, J. Nordin, A. Ofir, S. Ohm, D. Parsons, A. Pe’er, H. B. Perets, V. Perdelwitz, D. Poznanski, I. Sadeh, I. Sagiv, S. Shahaf, M. Soumagnac, L. Tal-Or, J. Van Santen, B. Zackay, O. Guttman, P. Rekhi, A. Townsend, A. Weinstein, I. Wold   +43 more
doaj   +1 more source

Temperature‐Tunable Cholesteric Liquid Crystal Optical Combiners for Extended Reality Applications

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Recent advancements in extended reality highlight their potential to enhance traditional displays like liquid crystal displays and organic light‐emitting diode screens. This article introduces an innovative cholesteric liquid crystal‐based optical combiner for head‐mounted displays, enabling seamless transitions between augmented reality, virtual ...
Yuanjie Xia, Haobo Li, Marija Vaskeviciute, Daniele Faccio, Affar S. Karimullah, Hadi Heidari, Rami Ghannam   +6 more
wiley   +1 more source

The genesis of solar radio astronomy in Australia [PDF]

, 2006
In late 1945, O.B. Slee at RAAF Radar Station 59 near Darwin and staff from the CSIRO's Division of Radiophysics in Sydney were involved in Australia's first investigation of radio emission form the Sun.
Slee, Bruce, Orchiston, Wayne, Burman, Ron   +2 more
core   +1 more source

Assessment of In Vitro Nano‐Cytotoxicity Through Fluorescence Microscopy via Neural Network‐Based Live/Dead Cell Classification

Advanced Intelligent Systems, EarlyView.
FluoAI is a two‐stage, label‐free method for quantifying nanomaterial‐induced cytotoxicity from conventional fluorescence microscopy images. Mask R‐CNN segmentation and DenseNet‐121 classification provide rapid live/dead classification matching human accuracy.
Ugur C. Topkiran, Ali Gasimli, Lal Durmaz, Diya Vashani, Himish Paul, Giridhar R. Akkaraju, Anton V. Naumov   +6 more
wiley   +1 more source

Laboratory Spectral Characterization of Ribbeck Aubrite: Meteorite Sample of Earth-impacting Near-Earth Asteroid 2024 BX1

The Planetary Science Journal
Characterization of near-Earth objects (NEOs) is critical for Earth-impact hazard assessment. Particularly crucial to our physical understanding of NEOs are laboratory spectral measurements of meteorites as they are the best and most widely available ...
David C. Cantillo, Kaycee I. Ridenhour, Adam Battle, Thomas Joyce, Juliana Nunez Breceda, Neil Pearson, Vishnu Reddy   +6 more
doaj   +1 more source

Water Production Rates of the Interstellar Object 3I/ATLAS

The Astrophysical Journal Letters
We report the detection of water activity in the third confirmed interstellar object, 3I/ATLAS, based on ultraviolet imaging with the Neil Gehrels Swift Observatory’s Ultraviolet/Optical Telescope. Assuming a reddening of 29% between 3325.7 and 5437.8 Å,
Zexi Xing, Shawn Oset, John Noonan, Dennis Bodewits   +3 more
doaj   +1 more source

Bioverse: Potentially Observable Exoplanet Biosignature Patterns under the UV Threshold Hypothesis for the Origin of Life

The Astrophysical Journal
A wide variety of scenarios for the origin of life have been proposed, with many influencing the prevalence and distribution of biosignatures across exoplanet populations.
Martin Schlecker, Dániel Apai, Antonin Affholder, Sukrit Ranjan, Régis Ferrière, Kevin K. Hardegree-Ullman, Tim Lichtenberg, Stéphane Mazevet   +7 more
doaj   +1 more source

Astronomy Education Research Down Under [PDF]

, 2005
A review of research conducted in Australasia into students' concept development in astronomy identifies a number of learning difficulties pertinent to astronomy, such as the lack of prior knowledge, intuitive or naive beliefs, juxtaposition and frames ...
Ginns, Ian S., Broadfoot, John, Ginns, Ian, Broadfoot, John M.   +3 more
core  

Thermal Conduction in Laser‐Driven Tin Plasmas and the Sensitivity of Plasma Properties to the Flux Limiter

Contributions to Plasma Physics, EarlyView.
ABSTRACT We study the role of thermal conduction in laser‐produced tin plasma sources of extreme ultraviolet (EUV) light using radiation‐hydrodynamic simulations. Adopting the flux‐limited Spitzer–Härm approach, we investigate the sensitivity of the electron temperature, electron density, net in‐band emissivity, and conversion efficiency to the choice ...
S. Aggarwal, J. Gonzalez, S. J. J. de Lange, J. Sheil   +3 more
wiley   +1 more source