搜索结果: 1-15 共查到“理学 Their Isotopes”相关记录109条 . 查询时间(0.078 秒)
From antimatter to heavy isotopes, data-taking in physics facilities is resuming at CERN（图）
反物质 重同位素 欧洲核子研究中心 物理设施 数据采集
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2023/5/26
As the two-year-long shutdown of CERN’s accelerators comes to an end, some of the Laboratory’s many experiments are not waiting for the Large Hadron Collider (LHC) to wake up before starting to take d...
Geochronology, Geochemistry and Sr-Nd-Pb-Hf Isotopes of No. I Complex from the Shitoukengde Ni–Cu Sulfide Deposit in the Eastern Kunlun Orogen, Western China: Implications for the Magmatic Source, Geodynamic Setting and Genesis
Sr-Nd-Pb-Hf isotopes crustal contamination oceanic slab break-off post-collisional extension Shitoukengde Ni-Cu deposit Eastern Kunlun Orogen
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2018/4/10
The Shitoukengde Ni-Cu deposit, located in the Eastern Kunlun Orogen, comprises three mafic–ultramafic complexes, with the No. I complex hosting six Ni-Cu orebodies found recently. The deposit is host...
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
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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...
Pre-Whaling Genetic Diversity and Population Ecology in Eastern Pacific Gray Whales: Insights from Ancient DNA and Stable Isotopes
Population Ecology Pre-Whaling Genetic Diversity
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2015/12/11
Commercial whaling decimated many whale populations, including the eastern Pacific gray whale, but little is known about
how population dynamics or ecology differed prior to these removals. Of partic...
Carbon isotopes in the ocean model of the Community Earth System Model (CESM1)
ocean model Community Earth System Model
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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 ...
Stable Carbon Isotopes (δ13C) in Coral Skeletons
Coral Skeletons Carbo
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2015/8/5
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...
GEOTRACES—A Global Study of the Marine Biogeochemical Cycles of Trace Elements and Their Isotopes
Marine Biogeochemical Cycles Trace Elements Their Isotopes
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2015/7/28
Since the late 1990s there has been a growing impetus for a comprehensive global study of the marine biogeochemical cycles of trace elements and their isotopes (TEIs). This has led to the development ...
Putting Isotopes to Work:Liquid Scintillation Counters,1950-1970
Isotopes to Work Liquid Scintillation Counters
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2015/3/27
Putting Isotopes to Work:Liquid Scintillation Counters,1950-1970.
Hydrological Processes in the Subsurface Investigated by Water Isotopes and Silica
rainfall to runoff response isotopes
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2015/3/1
The hillslope rainfall-outflow interactions, groundwater fluxes, and hydrological balance were examined in the small mountainous headwater catchment Uhlířská, the jizera Mountains, the Czech Repu...
Semi-Lagrangian transport of oxygen isotopes in polythermal ice sheets: implementation and first results
Semi-Lagrangian transport oxygen isotopes polythermal ice sheets implementation first results
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2014/12/19
Modelling the evolution of the Earth system on long timescales requires the knowledge and understanding of driving mechanisms, such as the hydrological cycle. This is dominant in all components of the...
Stable water isotopes in the coupled atmosphere–land surface model ECHAM5-JSBACH
Stable water isotopes coupled atmosphere–land surface model ECHAM5-JSBACH
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2014/12/12
In this study we present first results of a new model development, ECHAM5-JSBACH-wiso, where we have incorporated the stable water isotopes H218O and HDO as tracers in the hydrological cycle of the co...
δ18O water isotope in the iLOVECLIM model (version 1.0) – Part 3: A palaeo-perspective based on present-day data–model comparison for oxygen stable isotopes in carbonates
δ18O water isotope LOVECLIM model A paleo-perspective present-day data–model comparison oxygen stable isotopes carbonates
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2014/12/12
Oxygen stable isotopes (δ18O) are among the most useful tools in palaeoclimatology/palaeoceanography. Simulation of oxygen stable isotopes allows testing how the past variability of these isotopes in ...
Compound--Specific Hydrogen Isotopes of Lipid Biomarkers in Lake El’gygytgyn, Ne Russia
Arctic Deuterium Organic Geochemistry Paleoclimate Stable Isotopes
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2014/10/22
Recent successful drilling operations at Lake El'gygytgyn, NE Russia have recovered sediment cores back to 3.6Ma, representing the longest time-continuous sediment record of past climate change in the...
Oxygen isotopes as a valuable tool for measuring annual growth in tropical trees that lack distinct annual rings
tropical tree with non-distinct annual rings cellulose oxygen isotopes fractionation model Styrax tonkinensis Ficus semicordata var. semicordata
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2017/4/11
Some trees from tropical areas lack visually detectable and consistent annual growth rings. As such, we have measured
the radial variation of cellulose oxygen isotopes in trees that grow in seasonall...
Revealing organic carbon sources fueling a coral reef food web in the Gulf of Mexico using stable isotopes and fatty acids
Revealing organic carbon sources coral reef food web Gulf of Mexico stable isotopes fatty acids
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2014/4/2
Carbon and nitrogen stable isotopes and fatty acids (FAs) revealed primary producer organic carbon sources that fuel a coral reef food web with river influence. A stable isotope mixing model was used ...