How old the Universe is, is one of the most curious questions. In modern cosmology, the age of the Universe refers to the time elapsed since the Big Bang. The current generally accepted age of the Universe is about 13...
supported by the National Natural Science Foundation of China(1149056312125509U18672111196114100311775133and 12175152);the Continuous Basic Scientific Research Project No.WDJC-2019-13;the Equipment Research and Development Project of Chinese Academy of Sciences(28Y531040);research fund of CNNC。
The ^(25)Mg(p,γ)^(26)Al reaction plays an important role in the study of cosmic 1.809 MeV γ-ray as a signature of ongoing nucleosynthesis in the Galaxy.At astrophysical temperature around 0.1 GK,the ^(25)Mg(p,γ)^(2...
In this study,the correlation between Tm,a key variable in GNSS water vapor inversion,and surface temperature(Ts)was calculated on a global scale based on the global geodetic observing system(GGOS)atmosphere Tmdata an...
supported by the National Basic Research Program of China (2010CB428602 and 2010CB950802)
GPS radio occultation data from the Constellation Observing System for Meteorology, Ionosphere, and Climate(COSMIC) mission were used to validate the measurements of the advanced microwave sounding unit-A(AMSU-A) in t...
This work was supported by the Science Foundation of Civil Aviation Administration of China (Grant No. 99-3-3).
This study looks into the influence of cosmic radiation at high altitudes on human bodies. Results reveal that the cytokinesis-block micronuclei (CBMN) and conventional cultured micronuclei in peripheral blood lymphoc...
the National Natural Science Foundation of China;the Analytical Foundation of Center for Modern Analysis, Nanjing University.
Since the discovery of cosmic dust from Suzhou A-type granite, a following new problem is whether cosmic dust is preserved in only one type granite or in different types. In order to make the problem clear, the author...
Project supported by the Xi'an Lab of Loess;Quaternary Geology.
The Quaternary loess deposits in the arid-semiarid area in northwestern China are composed of eolian sedimemts which are continuous in terms of sedimentation and have undergone little alternation after deposition.They...
Project Supported by the National Natural Science Foundation of China;the Analytical Foundation of Centre for Modern Analysis,Nanjing University.
Spinel-group minerals are richly preserved in cosmic dusts, which have been reported to occur in chondritic microspherules of deep sea sediments and polar ice,and considered to be formed by the ablation of extraterres...
It is well known that thermodynamics of the black hole whose space-time isasymptotically flat obeys the four laws proposed by Bardeen, Carter and Hawking.But for the Schwarzschild type black hole whose space-time is n...
Project supported by the National Natural Science Foundation of China
Several of the known over 3000 minerals possess great typomorphic implication and experienced twists and turns of their discovery. Ringwoodite is the most outstanding of them. In 1931, Goldshmidt suggested that the cr...