搜索结果: 1-9 共查到“理学 carbon isotopes”相关记录9条 . 查询时间(0.109 秒)
中国地质大学科学技术发展院宋虎跃BGEG国家重点实验室 Geology (2017) Uranium and carbon isotopes document global-ocean redox-productivity relationships linked to cooling during the Frasnian-Famennian mass extinction
全球；变冷；事件；导致；生物；大灭绝
2021/10/21
近日，中国地质大学生物地质与环境地质国家重点实验室宋虎跃副研究员及合作者在国际地学领域权威期刊《GEOLOGY》上发表题目“Uranium and carbon isotopes document global-ocean redox-productivity relationships linked to cooling during the Frasnian-Famennian mass ex...
Carbon isotopes in the ocean model of the Community Earth System Model (CESM1)
ocean model Community Earth System Model
2015/8/11
Carbon isotopes in the ocean are frequently used
as paleoclimate proxies and as present-day geochemical
ocean tracers. In order to allow a more direct comparison of
climate model results with this ...
Following the highly publicized 1998 E1 Niño event, interest in how climatic events in the tropics affects global climate has grown. However, an understanding of the long-term natural variability...
The succession of Hirnantian events based on data from Baltica:brachiopods,chitinozoans,conodonts,and carbon isotopes
Hirnantian Baltica brachiopods chitinozoans conodonts graptolites carbon isotopes
2009/10/21
The Hirnantian (late Ordovician) environment was complex and dynamic. Understanding the correct order of events and their precise correlation with a time scale are extremely important for the developm...
Controls on the seasonal and interannual dynamics of organic matter stable carbon isotopes in mesotrophic Lake Holzmaar, Germany
interannual dynamics mesotrophic Lake Holzmaar Germany
2014/4/17
We investigated the particulate organic matter (POM) flux and its stable carbon isotope composition in
response to changes in phytoplankton primary production and abiotic environmental affects in mes...
Centennial evolution of the atmospheric methane budget: what do the carbon isotopes tell us?
atmospheric methane budget carbon isotopes
2008/12/8
Little is known about how the methane source inventory and sinks have evolved over recent centuries. New and detailed records of methane mixing ratio and isotopic composition (12CH4, 13CH4 and 14CH4) ...
Long-term field performance of a tunable diode laser absorption spectrometer for analysis of carbon isotopes of CO2 in forest air
tunable diode laser absorption spectrometer carbon isotopes CO2 forest
2008/11/19
Tunable diode laser absorption spectrometry (TDLAS) is gaining in popularity for measuring the mole fraction [CO2] and stable isotopic composition (δ13C) of carbon dioxide (CO2) in air in studies of b...
Exotic Structures of Odd-A Carbon Isotopes in the Deformed
Relativistic Mean-Field Theory
halo nuclei relativistic mean-field theory
2007/8/15
2004Vol.41No.1pp.79-88DOI:
Exotic Structures of Odd-A Carbon Isotopes in the Deformed
Relativistic Mean-Field Theory
JIANG Wei-Zhou,1,3 REN Zhong-Zhou,2 ZHU
Zhi-Yuan,1,3
WANG Ti...
Quasiparticle-Rotor Model Description of Carbon Isotopes
Energy spectra Particle projected BCS model Core excitation Quasiparticle-rotor model
2010/10/13
In this work we perform quasiparticle-rotor coupling model calculations within the usual BCS and the projected BCS for the carbon isotopes 15C, 17C and 19C using 13C as the building block. Owing to th...