Results 61 to 70 of about 3,790 (296)

Study of Free‐Space Optical Quantum Network: Review and Prospectives

Advanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

Tools of radio astronomy

, 2009
The recent years have seen breathtaking progress in technology, especially in the receiver and digital technologies relevant for radio astronomy, which has at the same time advanced to shorter wavelengths.
Rohlfs, Kristen, Wilson, Thomas L, Hüttemeister, Susanne   +2 more
core   +1 more source

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

Advanced 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, Krissanapat Yomthong, Sopon Butcha, Jonas Fransson, Chularat Wattanakit, Alexander Kuhn   +5 more
wiley   +1 more source

New Water Oxidation Mechanism in Photosystem II Resolves Major Experimental Controversies

Angewandte Chemie, EarlyView.
In Photosystem II Oxygen Evolving Complex, we discovered the O3‐O6 peroxide at lower energy. Assignment of the O3 ligated by histidine (His337) as a slow exchanging substrate and its coupling with O6 give the O─O bond formation mechanism most consistent with all currently available experimental data. Proposal shows how protein environment can steer the
Yulia Pushkar
wiley   +2 more sources

Io’s SO2 and NaCl Wind Fields from ALMA

The Astrophysical Journal Letters
We present spatially resolved measurements of SO _2 and NaCl winds on Io at several unique points in its orbit: before and after eclipse and at maximum eastern and western elongation.
Alexander E. Thelen, Katherine de Kleer, Martin A. Cordiner, Imke de Pater, Arielle Moullet, Statia Luszcz-Cook   +5 more
doaj   +1 more source

JWST’s PEARLS: A JWST/NIRCam View of ALMA Sources

The Astrophysical Journal Letters, 2023
We report the results of James Webb Space Telescope/NIRCam observations of 19 (sub)millimeter sources detected by the Atacama Large Millimeter Array (ALMA).
Cheng Cheng, Jia-Sheng Huang, Ian Smail, Haojing Yan, Seth H. Cohen, Rolf A. Jansen, Rogier A. Windhorst, Zhiyuan Ma, Anton Koekemoer, Christopher N. A. Willmer, S. P. Willner, Jose M. Diego, Brenda Frye, Christopher J. Conselice, Leonardo Ferreira, Andreea Petric, Min Yun, Hansung B. Gim, Maria del Carmen Polletta, Kenneth J. Duncan, Benne W. Holwerda, Huub J. A. Röttgering, Rachel Honor, Nimish P. Hathi, Patrick S. Kamieneski, Nathan J. Adams, Dan Coe, Tom Broadhurst, Jake Summers, Scott Tompkins, Simon P. Driver, Norman A. Grogin, Madeline A. Marshall, Nor Pirzkal, Aaron Robotham, Russell E. Ryan Jr.   +35 more
doaj   +1 more source

Combined Array for Research in Millimeter-wave Astronomy [PDF]

Proceedings of From Planets to Dark Energy: the Modern Radio Universe — PoS(MRU), 2008
The Combined Array for Research in Millimeter-wave Astronomy (CARMA) has been formed from the millimeter-wave antennas of the Owens Valley Radio Observatory (OVRO) and the Berkeley-Illinois-Maryland Association (BIMA) Array. CARMA consists of six 10.4-m and nine 6.1-m diameter antennas on a site at elevation 2200 m in the Inyo Mountains of eastern ...
openaire   +1 more source

Electrostatic Self‐Assembly Induced Nest‐Like MXene Networks on Fabric for Ultra‐Broadband Flexible Absorption

Advanced Science, EarlyView.
In this study, an electrostatically self‐assembled WPU‐MXene@FC flexible fabric constructs a “nest‐like” structure on fibers, building construct MXene multiple loss paths, achieving ultra‐wideband absorption of 25.3–1200 GHz in a thickness of 1.8 mm, while also exhibiting superhydrophobicity, acid and alkali resistance, and bending resistance ...
Min Luo, Zihao Chen, Haotian Li, Kexun Li, Wei Wang, Weishi Jiao, Donghong Wang, Qiye Wen   +7 more
wiley   +1 more source

Imaging Electric Polarization Switching in Multilayer Graphene

Advanced Science, EarlyView.
Domain wall sliding‐induced electric polarization switching is directly observed for the first time in multilayer graphene, enabled by a novel optical readout method. The polarization switching is realized upon application of global and local electric fields, and mechanical forces between neighboring polar domains of opposite out‐of‐plane polarizations
Zhou Zhou, Xiyao Peng, Jianfeng Bi, Jing He, Fei Xue, Jie Jiang, Huizhen Wu, Zhiwen Shi, Haoliang Qian, Toshikaze Kariyado, Sihan Zhao   +10 more
wiley   +1 more source

The science case and challenges of space-borne sub-millimeter interferometry

, 2022
Ultra-high angular resolution in astronomy has always been an important vehicle for making fundamental discoveries. Recent results in direct imaging of the vicinity of the supermassive black hole in the nucleus of the radio galaxy M87 by the millimeter ...

core   +1 more source