Results 111 to 120 of about 13,928,481 (267)

Investigation of a resistive anode detector for astronomical spectroscopy [PDF]

, 2015
A large format two dimensional photon counting detector has been evaluated as a detector for astronomical spectroscopy. The design comprises an 320 photocathode, a tandem MCP gain stage and a circular arc terminated resisitive anode to provide ...
Clampin, Mark
core  

Exceptional Antimodes in Multi‐Drive Cavity Magnonics

Advanced Electronic Materials, EarlyView.
Driven‐dissipative cavity‐magnonics provides a flexible platform for engineering non‐Hermitian physics such as exceptional points. Here, using a four‐port, three‐mode system with controllable microwave interference, antimodes and coherent perfect extinction (CPE) are realized, enabling active tuning to antimode exceptional points.
Mawgan A. Smith, Ryan D. McKenzie, Alban Joseph, Robert L. Stamps, Rair Macêdo   +4 more
wiley   +1 more source

Spin‐Polarized Interfaces Redirect CO2 Reduction From CO to Formate

Angewandte Chemie, EarlyView.
The chiral electrocatalyst exploits the CISS effect to establish a spin‐polarized interface that selectively promotes formate production during CO2 reduction while effectively suppressing the competing hydrogen evolution. ABSTRACT Achieving high product selectivity in electrocatalytic carbon dioxide reduction (CO2RR) remains a critical challenge due to
Fan He, Xingxu Yan, Xiaoqing Pan, Yong Yan, Jing Gu   +4 more
wiley   +2 more sources

Deep Investigation of Neutral Gas Origins (DINGO): Options for the Processing and Storage of Radio Astronomy Data for robust Deep Spectral Line Imaging in the SKA-Era using uv-Grids

The next generation of radio astronomy telescopes are challenging existing data analysis paradigms, as they have an order of magnitude more antennas and larger bandwidth. Foremost amongst these are deep spectral line surveys, because these have the largest number of epochs and spectral channels per dataset.
Williamson, Alexander, Dodson, Richard, Elahi, Pascal J., Rhee, Jonghwan, Gong, Qian, Meyer, Martin, Rozgonyi, Kristof, Wicenec, Andreas, Chen, Jieyang, Podhorszki, Norbert, Klasky, Scott, Mitchell, Daniel   +11 more
openaire   +2 more sources

Selective Tuning of Perpendicular Magnetic Anisotropy and Dzyaloshinskii–Moriya Interaction in Heterostructures Compatible with Magnetic Tunnel Junctions

Advanced Electronic Materials, EarlyView.
ABSTRACT Chirally coupled magnetic tunnel junctions (MTJs) have been proposed as a route toward compact spin logic architectures. Micromagnetic simulations indeed show that chiral coupling between adjacent MTJs with perpendicular magnetic anisotropy (PMA) can be achieved through an in‐plane (IP) interconnection mediated by the Dzyaloshinskii–Moriya ...
Bob Vermeulen, Seongbin Seo, Domenico Giuliano, Jyotirmoy Chatterjee, Giacomo Talmelli, Robert Carpenter, Yann Canvel, Yanan Li, Björn Heinz, Philipp Pirro, Bart Sorée, Kristiaan Temst, Van Dai Nguyen, Gouri Sankar Kar, Siddharth Rao   +14 more
wiley   +1 more source

Tailoring Photochromism Beyond Human Eye Visibility: On/Off Switchable NIR Absorption in an Aluminosilicate

Angewandte Chemie, EarlyView.
A new photochromic material was developed. Its on/off‐switchable absorption band is situated completely outside the human eye's visibility, in the near‐infrared (NIR) region, a feature never reported before. The photochromism mechanism in this aluminosilicate is elucidated by combining experimental as well as computational results, and the material's ...
Bettiina Muurinen, Hannah Byron, Teppo Kreivilä, Roosa Vastamäki, Sami Vuori, Tomasz Galica, Ian P. Machado, Sari Granroth, Basit Ali, Maarit Karppinen, Ivo Heinmaa, Milica Todorović, Raphael Rullan, Stephan Steinmann, Tangui Le Bahers, Mika Lastusaari   +15 more
wiley   +2 more sources

Identifying Dust-lane Spheroidal Galaxies in DESI Legacy Imaging Surveys Using Semisupervised Methods

The Astrophysical Journal Supplement Series
Dust-lane spheroidal galaxies (DLSGs) are unique astrophysical systems that exhibit the morphology of early-type galaxies (ETGs) but are distinguished by prominent dust lanes.
Zhijian Luo, Jianzhen Chen, Wenxiang Pei, Hubing Xiao, Shaohua Zhang, Qifan Cui, Chenggang Shu   +6 more
doaj   +1 more source

Image contrast enhancement based on histogram smoothing and continuous intensity relocation

, 2010
Image contrast enhancement is a fundamental and important pre-processing stage in the application of image processing techniques. Among revenues of possible approaches, histogram equalization is a popular and attractive candidate method to produce ...
Gu Fang, Kwok, NM, Ha, QP, Fang, G, D. Wang, Wang, D, Q. P. Ha, Kwok, Ngai M., N. M. Kwok, Ha, Quang P., Fang, Gu, Jia, X, S. Y. Chen, Chen, SY, Jia, Xiuping, Wang, Dalong, Xiuping Jia, Chen, S. Y.   +17 more
core   +1 more source

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

Kinematics of Supernova Remnants Using Multiepoch Maximum Likelihood Estimation: Chandra Observation of Cassiopeia A as an Example

The Astrophysical Journal
Decadal changes in a nearby supernova remnant (SNR) were analyzed using a multiepoch maximum likelihood estimation (MLE) approach. To achieve greater accuracy in capturing the dynamics of SNRs, kinematic features and point-spread function effects were ...
Yusuke Sakai, Shinya Yamada, Toshiki Sato, Ryota Hayakawa, Nao Kominato   +4 more
doaj   +1 more source