搜索结果: 1-15 共查到“知识库 理学 sulfur”相关记录58条 . 查询时间(0.38 秒)
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 ...
Sulfur stable isotope indicators of residency in estuarine fish
Sulfur stable isotope indicators of residency estuarine fish
2014/4/4
Estuarine fish may remain as residents in areas with favorable conditions for feeding and refuge, but become mobile and transient where conditions are less favorable. We developed a new approach invol...
Anthropogenic sulfur dioxide emissions: 1850–2005
Sulfur aerosols anthropogenic global regional sulfur dioxide
2011/2/25
Sulfur aerosols impact human health, ecosystems, agriculture, and global and regional climate. A new annual estimate of anthropogenic global and regional sulfur dioxide emissions has been constructed ...
Genotype networks, innovation, and robustness in sulfur metabolism
Genotype networks innovation robustness sulfur metabolism
2010/11/15
Metabolic networks are complex systems that comprise hundreds of chemical reactions which synthesize biomass molecules from chemicals in an organism's environment. The metabolic network of any one org...