Results 141 to 150 of about 3,130,711 (363)

Statistical properties of single-mode fiber coupling of satellite-to-ground laser links partially corrected by adaptive optics.

Journal of The Optical Society of America A-optics Image Science and Vision, 2018
In the framework of satellite-to-ground laser downlinks, an analytical model describing the variations of the instantaneous coupled flux into a single-mode fiber after correction of the incoming wavefront by partial adaptive optics (AO) is presented ...
L. Canuet, N. Védrenne, J. Conan, C. Petit, G. Artaud, A. Rissons, J. Lacan   +6 more
semanticscholar   +1 more source

Adenosine A3 receptor antagonists as anti‐tumor treatment in human prostate cancer: an in vitro study

FEBS Open Bio, EarlyView.
The A3 adenosine receptors (A3ARs) are overexpressed in prostate cancer. AR 292 and AR 357, as A3AR antagonists, are capable of blocking proliferation, modulating the expression of drug transporter genes involved in chemoresistance, ferroptosis, and the hypoxia response, and inducing cell death.
Maria Beatrice Morelli, Andrea Spinaci, Cui Chang, Rosaria Volpini, Catia Lambertucci, Matteo Landriscina, Vincenza Conteduca, Consuelo Amantini, Cristina Aguzzi, Laura Zeppa, Martina Giangrossi, Laura Soverchia, Matteo Santoni, Massimo Nabissi, Giorgio Santoni, Carlo Polidori   +15 more
wiley   +1 more source

NFIRAOS adaptive optics for the Thirty Meter Telescope

Astronomical Telescopes + Instrumentation, 2018
NFIRAOS (Narrow-Field InfraRed Adaptive Optics System) will be the first-light multi-conjugate adaptive optics system for the Thirty Meter Telescope (TMT).
J. Crane, G. Herriot, D. Andersen, J. Atwood, P. Byrnes, A. Densmore, J. Dunn, J. Fitzsimmons, T. Hardy, B. Hoff, K. Jackson, D. Kerley, O. Lardière, Malcolm J. Smith, Jonathan Stocks, J. Véran, C. Boyer, Lianqi Wang, G. Trancho, Melissa Trubey   +19 more
semanticscholar   +1 more source

Adaptive optics imaging of the retina

Indian Journal of Ophthalmology, 2014
Adaptive optics is a relatively new tool that is available to ophthalmologists for study of cellular level details. In addition to the axial resolution provided by the spectral-domain optical coherence tomography, adaptive optics provides an excellent lateral resolution, enabling visualization of the photoreceptors, blood vessels and details of the ...
Rajani Battu, Anjani Khanna, Supriya Dabir, Anupama Kiran Kumar, Abhijit Sinha Roy   +4 more
openaire   +3 more sources

Optical turbulence forecast in the Adaptive Optics realm [PDF]

OSA Conference 2018, 2019
(35-words maximum) In this talk I present the scientific drivers related to the optical turbulence forecast applied to the ground-based astronomy supported by Adaptive Optics, the state of the art of the achieved results and the most relevant challenges for future progresses.
arxiv  

A Content-Adaptive Method for Image Denoising

IEEE Access, 2019
In this paper, we firstly analyze the statistical distribution of simultaneous sparse coding errors (SSCE), which reflects the local correlation and non-local correlation characteristics of natural images.
Hao Chen, Yi He, Ling Wei, Xiqi Li, Jinsheng Yang, Yudong Zhang   +5 more
doaj   +1 more source

Iterative tomography with digital adaptive optics permits hour-long intravital observation of 3D subcellular dynamics at millisecond scale

Cell, 2021
Jiamin Wu, Zhi Lu, Dong Jiang, Yuduo Guo, Hui Qiao, Yi Zhang, Tianyi Zhu, Yeyi Cai, Xu Zhang, Karl Zhanghao, Hao Xie, Tao Yan, Guoxun Zhang, Xiaoxu Li, Zheng Jiang, Xing Lin, Lu Fang, Bing Zhou, P. Xi, Jingtao Fan, Li Yu, Qionghai Dai   +21 more
semanticscholar   +1 more source

High loop rate adaptive optics flood illumination ophthalmoscope with structured illumination capability.

Applied Optics, 2018
The design and performance of an adaptive optics flood illumination ophthalmoscope (AO-FIO) platform, based on eye motion and dynamic aberrations experimental analysis, are described.
Elena Gofas-Salas, P. Mecê, C. Petit, Jessica Jarosz, L. Mugnier, A. Montmerle Bonnefois, K. Grieve, J. Sahel, M. Pâques, S. Meimon   +9 more
semanticscholar   +1 more source

Anisotropic Filtering Based on the WY Distribution and Multiscale Energy Concentration Accumulation Method for Dim and Small Target Enhancement

Remote Sensing
In ground-based infrared optical remote sensing systems, the target signal is very weak due to the dynamic strong light background and the movement of dim and small targets.
Yang Wang, Nian Pan, Ping Jiang
doaj   +1 more source

SFFNet: Shallow Feature Fusion Network Based on Detection Framework for Infrared Small Target Detection

Remote Sensing
Infrared small target detection (IRSTD) is the process of recognizing and distinguishing small targets from infrared images that are obstructed by crowded backgrounds.
Zhihui Yu, Nian Pan, Jin Zhou
doaj   +1 more source