Results 21 to 30 of about 88,706 (269)

Comparison and Validation of the Ionospheric Climatological Morphology of FY3C/GNOS with COSMIC during the Recent Low Solar Activity Period

Remote Sensing, 2019
With the accumulation of the ionospheric radio occultation (IRO) data observed by Global Navigation Satellite System (GNSS) occultation sounder (GNOS) onboard FengYun-3C (FY3C) satellite, it is possible to use GNOS IRO data for ionospheric climatology ...
Weihua Bai, Guangyuan Tan, Yueqiang Sun, Junming Xia, Cheng Cheng, Qifei Du, Xianyi Wang, Guanglin Yang, Mi Liao, Yan Liu, Xiangguang Meng, Danyang Zhao, Congliang Liu, Yuerong Cai, Dongwei Wang, Yingqiang Wang, Cong Yin, Peng Hu, Ziyan Liu   +18 more
doaj   +1 more source

Global Maps of Equatorial Plasma Bubbles Depletions Based on FORMOSAT‐7/COSMIC‐2 Ion Velocity Meter Plasma Density Observations

Space Weather, 2023
FORMOSAT‐7/COSMIC‐2 is the largest equatorial multi‐satellite constellation of six full‐size satellites to study the equatorial ionosphere. Each satellite is equipped by an ion velocity meter (IVM) instrument to provide high rate in situ plasma density ...
Irina Zakharenkova, Iurii Cherniak, John J. Braun, Qian Wu   +3 more
doaj   +1 more source

Cosmic topology [PDF]

Physics Reports, 1995
General relativity does not allow one to specify the topology of space, leaving the possibility that space is multi-- rather than simply--connected. We review the main mathematical properties of multi--connected spaces, and the different tools to classify them and to analyse their properties.
Lachieze-Rey, M., Luminet, J. P.
openaire   +2 more sources

Cosmic Hail [PDF]

Das Questões, 2021
This poem takes the form of an ode to a speck of cosmic dust, tracking its journey across deep time and orbital space to its encounter with a living Earth.
openaire   +2 more sources

Development and preliminary validation of a machine learning system for thyroid dysfunction diagnosis based on routine laboratory tests

Communications Medicine, 2022
Hu et al. develop a machine learning approach for diagnosis of thyroid disorders based on routine clinical laboratory measurements. The approach is tested on data from multiple institutions and can distinguish patients with hyper- or hypothyroidism from ...
Min Hu, Chikashi Asami, Hiroshi Iwakura, Yasuyo Nakajima, Ryousuke Sema, Tsuyoshi Kikuchi, Tsuyoshi Miyata, Koji Sakamaki, Takumi Kudo, Masanobu Yamada, Takashi Akamizu, Yasubumi Sakakibara   +11 more
doaj   +1 more source

Statistical validation of ionospheric electron density profiles retrievals from GOES geosynchronous satellites

Journal of Space Weather and Space Climate, 2023
In this paper, we discuss a novel retrieval of ionospheric electron density profiles using the Radio Occultation (RO) technique applied to measurements captured by the Global Positioning System (GPS) receivers onboard two Geostationary Operational ...
Zakharenkova Irina, Cherniak Iurii, Gleason Scott, Hunt Douglas, Freesland Douglas, Krimchansky Alexander, McCorkel Joel, Ramsey Graeme, Chapel Jim   +8 more
doaj   +1 more source

Design and operation of a 1500-m laser strainmeter installed at an underground site in Kamioka, Japan

Earth, Planets and Space, 2017
A laser strainmeter with a 1500-m baseline was constructed at an underground site in Kamioka, Gifu Prefecture, Japan, and has been operating since August 2016. The laser interferometer measures the change in distance between two retroreflectors housed in
Akito Araya, Akiteru Takamori, Wataru Morii, Kouseki Miyo, Masatake Ohashi, Kazuhiro Hayama, Takashi Uchiyama, Shinji Miyoki, Yoshio Saito   +8 more
doaj   +1 more source

COSMIC‐2 Radio Occultation Constellation: First Results

Geophysical Research Letters, 2020
Initial data from the Formosa Satellite‐7/Constellation Observing System for Meteorology Ionosphere and Climate (FORMOSAT‐7/COSMIC‐2, hereafter C2), a recently launched equatorial constellation of six satellites carrying advanced radio occultation ...
W.S. Schreiner, J.P. Weiss, R.A. Anthes, J. Braun, V. Chu, J. Fong, D. Hunt, Y.‐H. Kuo, T. Meehan, W. Serafino, J. Sjoberg, S. Sokolovskiy, E. Talaat, T.K. Wee, Z. Zeng   +14 more
doaj   +1 more source

Evaluation of Tropospheric Moisture Characteristics Among COSMIC-2, ERA5 and MERRA-2 in the Tropics and Subtropics

Remote Sensing, 2021
Global navigation satellite system (GNSS) radio occultation (RO) receivers onboard the recently-launched COSMIC-2 (C2) satellite constellation provide an unprecedented number of high vertical resolution moisture profiles throughout the tropical and ...
Benjamin R. Johnston, William J. Randel, Jeremiah P. Sjoberg   +2 more
doaj   +1 more source

Cosmic superstrings

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2008
Cosmic superstrings are expected to be formed at the end of brane inflation, within the context of brane-world cosmological models inspired from string theory. By studying the properties of cosmic superstring networks and comparing their phenomenological consequences against observational data, we aim to pin down the successful and natural inflationary
openaire   +4 more sources