搜索结果: 1-15 共查到“理学 transient”相关记录99条 . 查询时间(0.076 秒)
中国地质大学科学技术发展院王海洋(博士研究生)，李超* 等, BGEG国家重点实验室，Geochimica et Cosmochimica Acta(2019), Spatiotemporal redox heterogeneity and transient marine shelf oxygenation in the Mesoproterozoic ocean
中元古代；海洋高度；时空差异；氧化还原状态；短暂；陆架；氧化事件
2021/10/15
近日，中国地质大学生物地质与环境地质国家重点实验室李超教授团队在国际著名地球化学期刊《Geochimica et Cosmochimica Acta》(Nature Index)上发表题为“Spatiotemporal redox heterogeneity and transient marine shelf oxygenation in the Mesoproterozoic ocean”（中...
中国地质大学科学技术发展院石炜(博士生),李超等 BGEG国家重点实验室 Geology, January 24,2018, Sulfur isotope evidence for transient marine-shelf oxidation during the Ediacaran Shuram Excursion
早期地球；海洋；氧化模式；地球；碳循环；
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李超教授团队在国际著名地学期刊《Geology》上发表了题为“Sulfur isotope evidence for transient marine-shelf oxidation duringthe Ediacaran Shuram Excursion”的学术论文，该论文通过定量数值模拟的方法首次发现了埃迪卡拉纪碳循环剧烈扰动时期（又称“Shu...
Zwicky Transient Facility Opens Its Eyes to the Volatile Cosmos（图）
Zwicky Transient Facility Opens Its Eyes Volatile Cosmos
2017/11/24
A new robotic camera with the ability to capture hundreds of thousands of stars and galaxies in a single shot has taken its first image of the sky, an event astronomers refer to as "first light." The ...
中国地质大学科学技术发展院程猛, 李超BGEG国家重点实验室 Geochimica et Cosmochimica Acta， 2017. Transient Deep-Water Oxygenation in the Early Cambrian Nanhua Basin, South China
寒武纪；南华盆地；深水；短暂；充氧；事件
2021/10/21
2017年4月，国际著名期刊《Geochimica et Cosmochimica Acta》刊发了中国地质大学生物地质与环境地质国家重点实验室李超教授团队的研究文章--南华盆地寒武纪早期深水短暂充氧事件（Transient deep-water oxygenation in the early Cambrian Nanhua Basin, South China）。程猛助理研究员为本文的第一作者...
Constraints on mechanisms of chondrule formation from chondrule precursors and chronology of transient heating events in the protoplanetary disk
chondrules refractory inclusions chondrule precursors transient heating
2017/4/10
The mineralogy, petrography, and oxygen-isotope compositions of porphyritic chondrules—dominant chondrule type
in most chondrite groups—suggest formation by incomplete melting of isotopically diverse...
Effects of transient water mass redistribution associated with a tsunami wave on Earths pole path
arth rotation pole path variation tsunami wave Sumatra earthquake
2015/9/2
We have quantified the effects of a water mass redistribution associated with the propagation of a tsunami wave
on the Earths pole path and on the Length-Of-Day (LOD) and applied our modeling results...
Post-seismic stress relaxation with a linear transient rheology
Transient rheology Geodynamics Stress tensor Coulomb failure function Post-seismic relaxation
2015/8/28
We performed an analysis of post-seismic stress relaxation, taking into account generalized linear rheologies. We compared the stress field (and its derived functions) obtained with a classical Maxwel...
Chandra Observations of the Bursting X-Ray Transient SAX J1747.0–2853 during Low-Level Accretion Activity
SAX J1747.0–2853 stars
2014/12/26
We present Chandra/ACIS observations of the bursting X-ray transient SAX J1747.0-2853 performed on 2001 July 18. We detected a bright source at the position of R.A. = 17h47m02.s60 and decl. = -28°52'5...
Supernova caught in the act by Palomar Transient Factory
Supernova caught in the act Palomar Transient Factory
2014/6/12
Supernovae—stellar explosions—are incredibly energetic, dynamic events. It is easy to imagine that they are uncommon, but the universe is a big place and supernovae are actually fairly routine. The pr...
Electromagnetic follow-up of gravitational wave transient signal candidates
Electromagnetic follow-up gravitational wave transient signal candidates
2012/2/24
Pioneering efforts aiming at the development of multi-messenger gravitational wave and electromagnetic astronomy have been made. An electromagnetic observation follow-up program of candidate gravitati...
We investigated carrier-relaxation dynamics of femtosecond laser annealed (FLA) polycrystalline silicon (poly-Si). The correlation between morphology and electrical properties of poly-Si after femtose...
Variable and Transient Radio Sources in the FIRST Survey
Variable Transient Radio Sources FIRST Survey
2011/10/20
A comprehensive search for variable and transient radio sources has been conducted using ~55,000 snapshot images of the FIRST survey. We present an analysis leading to the discovery of 1,627 variable ...
A Transient but Protracted Geomagnetic Anomaly in the Sudbury Basin Following Two Near-Contiguous Intense Geomagnetic Storms
Anomalous Transients Sudbury Basin Magnetic Storm Periodicity
2013/3/7
During the maintained quiescence between solar cycle 23 and 24, two unusually intense (K-indices = 7) global geomagnetic disturbances separated by 6 days occurred. They were followed by a protracted i...
Impurity-trapped excitons and electron traps in CaF$_2$:Yb$^{2+}$ and SrF$_2$:Yb$^{2+}$ probed by transient photoluminescence enhancement
rare-earth Yb2+ CaF2 two-color spectroscopy exciton electron trap
2011/8/18
Abstract: CaF$_2$:Yb$^{2+}$ and SrF$_2$:Yb$^{2+}$ crystals have been investigated by a two-color UV + IR transient photoluminescence enhancement technique. The enhancement gives information about both...
The unusual radio transient in M82: an SS 433 analogue?
stars:radio:continuum – stars:X-rays:binaries – Galaxies:individual:M82– X-rays:galaxies
2011/10/19
In this paper we discuss the recently discovered radio transient in the nuclear region of M\,82. It has been suggested that this source is an X-ray binary, which, given the radio flux density, would r...