搜索结果: 1-15 共查到“理学 sulfur”相关记录64条 . 查询时间(0.063 秒)
High in the atmosphere of Venus, a swirl of sulfur-containing clouds blankets the planet. Dark spots in these clouds correspond with areas of high ultraviolet light absorption, but researchers have ye...
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...
While many scientists are hard at work on "green chemistry" projects that will benefit the environment, there are a handful of researchers at the University of Arizona who are starting a trend of thei...
The Sulfur Cycle
Sulfur Cycle Earth
2015/7/22
The ocean represents a major reservoir of sulfur on Earth, with large quantities in the form of dissolved sulfate and sedimentary minerals (e.g., gypsum and pyrite). Sulfur occurs in a variety of vale...
Simultaneous determinations of fluorine, chlorine, and sulfur in rock samples by ion chromatography combined with pyrohydrolysis
pyrohydrolysis halogen sulfur ion chromatography geological reference material
2017/4/10
We present a simplified method for simultaneous determinations of fluorine (F), chlorine (Cl), and sulfur (S) contents
and isotopic abundances in rock samples. After using pyrohydrolysis to extract F...
Systemic regulation of sulfur homeostasis in Medicago truncatula
Medicago Root morphology Split-root system Sulfur defiiency Sulfate transporters Systemic response
2015/2/5
Sulfur (S) is an essential macronutrient for plants, and defiiency in soil S availability limits plant growth. Adaptive strategies have been evolved by plants to respond to S defiiency by coordinating...
Investigation of a sulfur-utilizing perchlorate-reducing bacterial consortium
bacterial consortium Beta-Proteobacteria bioreactor bioremediation perchlorate sulfur
2015/1/28
We present research investigating how, with in depth knowledge of the community, microbial communities may be harnessed for bioremediation of hazardous water contaminants. We focused on the bacterial ...
WRF-Chem modeling of sulfur dioxide emissions from the 2008 Kasatochi Volcano
WRF-Chem volcano sulfur dioxide model emissions
2015/8/18
We simulate the dispersion and chemical evolution of the sulfur dioxide (SO2) plume following the eruption of Kasatochi Volcano in Alaska, USA, on August 7th, 2008 with the Weather Research Forecastin...
Effects of environmental factors on dimethylated sulfur compounds and their potential role in the antioxidant system of the coral holobiont
Effects of environmental factors dimethylated sulfur compounds their potential role antioxidant system coral holobiont
2014/4/2
Biogenic dimethylsulfide (DMS) and its main precursors, dimethylsulfoniopropionate (DMSP) and dimethylsulfoxide (DMSO), are potential scavengers of reactive oxygen species in marine algae, and these d...
Lipids in a sulfur-rich lacustrine sediment from the Nördlinger Ries (southern Germany) with a focus on free and bound sterols
Nö rdlinger Ries lacustrine environment core sediments 4-methyl sterols steroidal ketones dinoflagellates
2017/4/11
The distribution of free sterols in a sulfur-rich lacustrine sediment of Miocene age deposited in the ancient crater lake
of the Nördlinger Ries (southern Germany) was investigated and compared ...
Sulfur, oxygen, and hydrogen isotope compositions of precipitation in Seoul, South Korea
sulfur isotope oxygen hydrogen pollution precipitation sulfate Korea East Asia
2017/4/11
To evaluate the source of sulfur and the extent of seasonal and local characteristics in Seoul’s precipitation chemistry,
we measured sulfur, oxygen, and hydrogen isotopic ratios of precipitation. Th...
Sulfur isotopic study of ore minerals and altered host rocks of Neogene–Quaternary overprinting hydrothermal systems in the Toyoha–Muine area, southwest Hokkaido, Japan
sulfur isotopes overprinting hydrothermal systems ore minerals alteration Toyoha–Muine
2017/4/11
Sulfur isotopes in vein sulfides (galena, sphalerite, and pyrite) and pyrite sulfur derived from overprinting hydrothermal
systems in the altered volcanic host rocks of the Toyoha–Muine area are dete...
Estimation of sulfur, fluorine, chlorine and bromine fluxes at Mid Ocean Ridges using a new experimental crushing and extraction method
degassing flux sulfur halogen helium Mid Ocean Ridge basalts
2017/4/11
We measured helium-3 (3
He), sulfur (S), fluorine (F), chlorine (Cl) and bromine (Br) concentrations in vesicles of Mid
Ocean Ridge Basalts (MORBs) and Back-Arc Basin Basalts (BABBs). The aim of thi...
Seasonal change in microbial sulfur cycling in monomictic Lake Fukami-ike, Japan
Seasonal change microbial sulfur cycling monomictic Lake Fukami-ike Japan
2014/4/4
Sulfur budgets and seasonal progression of sulfur cycling processes were investigated in Lake Fukami-ike, a small monomictic lake in Japan. The sulfur isotopic mass balance shows that the main sulfur ...
Seasonal change in microbial sulfur cycling in monomictic Lake Fukami-ike, Japan
Seasonal change microbial sulfur cycling monomictic Lake Fukami-ike Japan
2014/4/3
Sulfur budgets and seasonal progression of sulfur cycling processes were investigated in Lake Fukami-ike, a small monomictic lake in Japan. The sulfur isotopic mass balance shows that the main sulfur ...