Results 71 to 80 of about 141,058 (288)

Flexible and High‐Performance Perovskite‐Polymer Composites for Dual X‐Ray and Proton Direct Detection

Advanced Optical Materials, EarlyView.
A polymer–perovskite composite obtained by mechanochemical synthesis enables thick, tunable active layers for efficient absorption of highly penetrating ionizing radiation. Vertical‐electrode detectors achieve low X‐ray detection limits and high sensitivity direct 5 MeV proton sensing.
Camilla Bordoni, Bas A. H. Huisman, Joost W. C. Reinders, Ilaria Fratelli, Massimo Chiari, Laura Basiricò, Henk J. Bolink, Andrea Ciavatti, Michele Sessolo, Beatrice Fraboni   +9 more
wiley   +1 more source

Multi‐Dielectric Metasurfaces for Ultrabright, Tunable Structural Color and Reconfigurable Optical Filtering with Extraordinarily Large Color Span

Advanced Optical Materials, EarlyView.
Structural color generation is an emerging field for digital display and printing applications. This report presents a novel truncated‐cone design and the first use of GaP sandwiched between two layers of TiO2, demonstrating ultra‐bright, tunable colors with a record color gamut.
Md Rumon Miah, Yavuz Selim Aydın, Hilmi Volkan Demir   +2 more
wiley   +1 more source

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

Advanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino, Phuoc Thien Phan, James Davies, Bibhu Sharma, Tianruo Guo, Chi Cong Nguyen, Nigel H. Lovell, Thanh Nho Do   +7 more
wiley   +1 more source

Characterizing the Instrumental Profile of LAMOST

The Astronomical Journal
The instrumental profile (IP) of a telescope is of great significance for spectroscopic analyses, especially for wavelength calibration and stellar parameter measurements. The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) employs arc
Qian Liu, Zhongrui Bai, Ming Zhou, Mingkuan Yang, Xiaozhen Yang, Ziyue Jiang, Hailong Yuan, Ganyu Li, Yuji He, Mengxin Wang, Yiqiao Dong, Haotong Zhang   +11 more
doaj   +1 more source

Identifying seasonal stars in Kaurna astronomical traditions

, 2015
Early ethnographers and missionaries recorded Aboriginal languages and oral traditions across Australia. Their general lack of astronomical training resulted in misidentifications, transcription errors, and omissions in these records.
Hamacher, Duane W.
core  

A Bifunctional T3SS‐Effector Simultaneously Cleaves Host MAP Kinase and Inhibits PPM1A Phosphatase

Advanced Science, EarlyView.
Pathogenic bacteria exploit the metalloprotease effector NleD to subvert host defenses. Structural, biochemical, and infection analyses reveal a bifunctional mechanism by which NleD binds and inhibits the host phosphatase PPM1A while preserving its proteolytic activity against MAPKs.
Yaakov Socol, Lihi Gur‐Arie, Netanel Tzarum, Tamara Wellins, Naama Katsowich, Miriam Ravins, Michal Bejerano‐Sagie, Klil Cohen, Oded Livnah, Joshua N. Adkins, Ernesto Nakayasu, Alexei Savchenko, Yeu Khai Choong, Nikhil Kumar Tulsian, Saturo Machida, Sigal Ben‐Yehuda, Yael Litvak, J. Sivaraman, Ilan Rosenshine   +18 more
wiley   +1 more source

2D Copper MOF Membranes with Precise Pores for Ionic Memory

Advanced Science, EarlyView.
 . ABSTRACT Biological ion channels play a critical role in the complex physiological processes of living organisms. Inspired by these natural systems, we demonstrate the fabrication of ultrathin 2D copper‐based metal‐organic framework (CuMOF) films and their application to mimic key functionalities of biological membranes. Using a liquid–air interface
Hiran Jyothilal, Raj Kumar Gogoi, Yuchen Liu, Vikas Sharma, Solleti Goutham, Michael Hutton, Rachel C. Kilbride, Daniel T.W. Toolan, Ashok Keerthi, Boya Radha   +9 more
wiley   +1 more source

Solid Harmonic Wavelet Bispectrum for Image Analysis

Advanced Science, EarlyView.
The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown, Mathilda Avirett‐Mackenzie, Carolin Villforth, Georgios Exarchakis   +3 more
wiley   +1 more source

Quantifying the Contamination from nearby Stellar Companions in Gaia DR3 Photometry

The Astronomical Journal
Identifying and removing binary stars from stellar samples is a crucial but complicated task. Regardless of how carefully a sample is selected, some binaries will remain and complicate interpretation of results, especially via flux contamination of ...
Kendall Sullivan, Adam L. Kraus, Travis A. Berger, Daniel Huber   +3 more
doaj   +1 more source

A foldable 4.27 meter (14 foot) spacecraft antenna [PDF]

, 1972
The problems and solutions associated with the design, fabrication, and testing of a large, lightweight, radial-rib, folding, spacecraft antenna reflector are discussed.
Starkey, D. J.
core   +1 more source