Results 241 to 250 of about 207,262 (276)

A 650-Myr history of Earth's axial precession frequency and the evolution of the Earth-Moon system derived from cyclostratigraphy. [PDF]

Sci Adv
Wu Y, Malinverno A, Meyers SR, Hinnov LA.   +3 more
europepmc   +1 more source

The Rayleigh-Taylor instability in a binary quantum fluid. [PDF]

Sci Adv
Geng Y, Tao J, Zhao M, Mukherjee S, Eckel SP, Campbell GK, Spielman IB.   +6 more
europepmc   +1 more source

Climate-carbon-cycle interactions and spatial heterogeneity of the late Triassic Carnian pluvial episode. [PDF]

Nat Commun
Zhao X, Xue N, Yang H, Zheng D, Peng J, Frieling J, De Vleeschouwer D, Fu X, Jia W, Fang Y, Li S, Wang M, Zhao X, Wang Q, Zhang H, Sha J, Jenkyns HC, Claeys P, Wang B.   +18 more
europepmc   +1 more source

Analysis of polarization aberrations of the off-axis pupil freeform optical system. [PDF]

iScience
Gong C, Zhang Y, Liu W, Wang J, Fu Q, Shi H.   +5 more
europepmc   +1 more source

Jurassic constraints on the chaotic Mars-Earth eccentricity cycle linked to the volcanically induced Jenkyns event. [PDF]

Proc Natl Acad Sci U S A
Fang Y, Olsen PE, Sha J, Whiteside JH, Guan C, Ikeda M, Li S, Zheng D, Zhang H, Wang B.   +9 more
europepmc   +1 more source

Astronomical terms coined by Matteo Ricci and Lǐ Zhīzǎo 李之藻

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ABSTRACTS

Precision Radiation Oncology, EarlyView.
wiley   +1 more source

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AstroBase: Distributed Long-Term Astronomical Database

2019
China’s self-developed GWAC is different from previous astronomical projects. GWAC consists of 40 wide-angle telescopes, collecting image data of the entire sky every 15 s, and requires data to be processed and alerted in real time within 15 s. These requirements are due to GWAC.
Kenan Liang, Wei Guo, Lizhen Cui, Meng Xu, Qingzhong Li   +4 more
openaire   +1 more source

Some Astronomical Terms

Publications of the Astronomical Society of the Pacific, 1939
After twenty years1 experience in teaching astronomy to thousands of students in the University of California and elsewhere, the writer submits the following not necessarily original definitions of a few fundamental astronomical terms and suggestions concerning their use.
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Long-Term Citation Histories of Astronomical Papers

Publications of the Astronomical Society of the Pacific, 1981
We studied the citation histories of 326 papers published in 1961 and cited in the 18 subsequent years. On the average the citations reached a maximum five years after publication, followed by a slow decline such that 20 years after publication the citation rate is half the maximum rate. Theoretical papers show the same rate of decline as observational
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