Results 41 to 50 of about 35,861 (225)

Interferometry and Synthesis in Radio Astronomy [PDF]

, 2001
astronomy; physics; communications; radio ...
Thompson, A. Richard, Moran, James M., Swenson, George W.   +2 more
openaire   +4 more sources

Linking Device Performance to Nanoscale Photoactivation of Grain Boundaries in 2D Hybrid Halide Perovskites

Advanced Materials Technologies, EarlyView.
The opto‐electronic response of polycrystalline (PEA)2PbBr4 thin films is investigated by correlating macroscopic photodetector performance with nanoscale mapping techniques. Grain boundary density is systematically tuned through crystallization control and linked to device responsivity.
Camilla Bordoni, Lorenzo Calcaterra, Andrea Ciavatti, Silvia Milita, Valentina Bonino, Lorenzo Margotti, Sara Cepić, Marisa Di Sabatino, Federico Boscherini, Daniela Cavalcoli, Beatrice Fraboni   +10 more
wiley   +1 more source

A Radio-interferometric Imaging Method Based on the Wavelet Tight Frame

The Astronomical Journal
Reconstructing the signal from measured visibilities in radio interferometry is an ill-posed inverse problem. In this paper, we present a novel radio-interferometric imaging method based on the wavelet tight frame aimed at efficiently obtaining an ...
Xiaocheng Yang, Xiang You, Lin Wu, Jingye Yan, Feng Liu, Mingfeng Jiang, Junbao Zheng   +6 more
doaj   +1 more source

Redshift, Time, Spectrum - the most distant radio quasars with VLBI

, 2012
The highest-redshift quasars are still rare and valuable objects for observational astrophysics and cosmology. They provide important constraints on the growth of the earliest supermassive black holes in the Universe, and information on the physical ...
Frey, S., Gabanyi, K. E., Gurvits, L. I., Paragi, Z.   +3 more
core   +1 more source

Biolipid Film‐Fused Electrochemiluminescence for Multipurpose In Situ Bioassays

Advanced Science, EarlyView.
An ECL‐emissive, membrane‐interactive scaffold was fabricated, and facilely fused with natural and non‐native phospholipids into multifactorial mimicries of cytomembranes and vesicles for in vitro representative membrane‐process probing. Such a biointerface‐based, state‐sensitive ECL paradigm not only pinpointed proximal phenomena, including channeling
Jialiang Chen, Bin Li, Yingying Wang, Fulin Zhu, Wenxuan Yang, Xuanyu Fu, Tiantian Man, Qiuyue Wu, Kewei Ren, Shengyuan Deng   +9 more
wiley   +1 more source

A Radio-interferometric Imaging Method Based on Adaptively Learned Sparsifying Basis

The Astronomical Journal
In radio interferometry, the process of reconstructing the signal from measured visibilities is an ill-posed inverse problem. Although the compressive sensing (CS) technology has been successfully applied in radio interferometry, the conventional CS ...
Xiaocheng Yang, Yixin Zhang, Lin Wu, Jingye Yan, Mingfeng Jiang, Haixiang Zhang, Xuning Lv, Yang Yang, Li Deng   +8 more
doaj   +1 more source

A Data Exchange Standard for Optical (Visible/IR) Interferometry

, 2005
This paper describes the OI Exchange Format, a standard for exchanging calibrated data from optical (visible/infrared) stellar interferometers. The standard is based on the Flexible Image Transport System (FITS), and supports storage of the optical ...
Cotton, W. D., Monnier, J. D., Pauls, T. A., Young, J. S.   +3 more
core   +1 more source

Cells Dynamically Adapt Their Nuclear Volumes and Proliferation Rates During Single to Multicellular Transitions

Advanced Science, EarlyView.
It is currently not well understood how cells regulate basic properties, e.g., volume and mechanics within dense multicellular environments like tumors. Here, we show that different cell types of cancer and also normal cells largely decrease their nuclear and cellular volumes in emerging cell clusters and that this is partly driven by cell cycle shifts.
Vaibhav Mahajan, Keshav Gajendra Babu, Markus Mukenhirn, Antje Garside, Vinita Ajit Kini, Trishla Adhikari, Timon Beck, Byung Ho Lee, Kyoohyun Kim, Carsten Werner, Raimund Schlüßler, Alf Honigmann, Sebastian Aland, Anna Verena Taubenberger   +13 more
wiley   +1 more source

Modeling Atmospheric Phase Corruptions in High-frequency Very-long-baseline Interferometry Using Gaussian Processes

The Astronomical Journal
Using very-long-baseline interferometry (VLBI) observations at (sub)millimeter wavelengths, the Event Horizon Telescope (EHT) currently achieves the finest angular resolution of any astronomical facility, necessary for imaging the horizon-scale structure
Uri Rolls, Dominic W. Pesce, Paul Tiede, Lindy Blackburn, Iniyan Natarajan, Sheperd S. Doeleman   +5 more
doaj   +1 more source

Deep learning-based imaging in radio interferometry

Astronomy & Astrophysics, 2022
Context.The sparse layouts of radio interferometers result in an incomplete sampling of the sky in Fourier space which leads to artifacts in the reconstructed images. Cleaning these systematic effects is essential for the scientific use of radiointerferometric images.Aims.Established reconstruction methods are often time-consuming, require expert ...
K. Schmidt, F. Geyer, S. Fröse, P.-S. Blomenkamp, M. Brüggen, F. de Gasperin, D. Elsässer, W. Rhode   +7 more
openaire   +2 more sources