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370篇 您的检索式:作者名="Lakes R"
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1Preliminary discussion of low-salinity hydrothermal fluid mineralization显示文摘REVIEWING the history of the geology of mineral deposits, we may find that in the first fifty years of thetwentieth century the magmatic-hydrothermal theory of ore deposition was the most prevalent, whichgave impetus to the development of the geology of mineral deposits. In the 1960s, the drilling of theSalton Sea geothermal field, California, the United States, and discovery and study of the Red Sea seafloor hot brines and large amounts of metal sulfides removed therefrom led to the rise of the brine theory ofmineral deposition, thus elucidating the origin of massive metal sulfides and promoted the discoveryand exploration of metal deposits. After the 1970s and the 1980s, through a study of the hydrothermal ore fluids of modern hotsprings. geologists came to realize that there exist low-salinity hydrothermal ore fluids other thanZHENG Mianping R & D Center of Saline Lake and Epithermal Deposits, Chinese Academy of Geological Sciences, Beijing 100037, China 1999Chinese Science Bulletin1999,44,S2:5
2The effects of K^+ growth conditions on the accumulation of cesium by the bacterium Thermus sp. TibetanG6显示文摘The accumulation of cesium by the bacterium Thermus sp. TibetanG6 was examined under different K+ growth conditions. The effects of external pH and Na+ on the accumulation of ce-sium were also studied, and the mechanism involved was discussed. K+ regimes played an important role in the accumulation of cesium by the strain TibetanG6. The quantity of cesium accumulated (24 h) was much higher in K+-deficient regime than that in K+-sufficient regime. The pH and Na+ had different effects on the accumulation of cesium in the two K+ regimes. IR spectra analyses indicated that the biosorption is a process of homeostasis with cesium initially accumulated on the cell wall.WANG Hailei1,2,3, KONG Fanjing1,2,3 & ZHENG Mianping1,2,3 1. R&D Center for Saline Lake and Epithermal Deposits, Chinese Academy of Geological Sciences, Beijing 100037, China 2. Key Open Laboratory of Saline Lake Resources and Environment, Chinese Academy of Geological Sciences, Beijing 100037, China 3. Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China 2006Science China(Life Sciences)2006,49,2:3
3Cesium accumulation by bacterium Thermus sp. TibetanG7:hints for biomineralization of cesium-bearing geyserite in hot springs in Tibet,China显示文摘The bacterium Thermus sp. TibetanG7, isolated from hot springs in Tibet, China, was examined for the ability to accumulate cesium from solutions. Environmental conditions were simulated and the effects of pH, K+, Na+ and K+-regimes were then studied to determine the possible role of the bacterium in the formation of cesium-bearing geyserite around these hot springs. In despite of the inhibition of K+ and Na+, the bacterium Thermus sp. TibetanG7 revealed noticeable accumulation of cesium from solutions, with maximum accumulations of 53.49 and 40.41 μmol Cesium/g cell dry weight in Na+ and K+ inhibition experiments, respectively. The accumulation of cesium by this microorganism is rapid, with 40%―50% accumulated within the first 5 min. K+-deficient cells showed a much higher capacity of cesium accu- mulation compared with K+-sufficient cells. It is evident that the bacteria within the genus thermus play a significant role in the cesium assembly. The formation of cesium-bearing geyserite is also considered.WANG HaiLei1,2,3, ZHENG MianPing1,2,3 & HUANG XiaoXing4 1 Institute of Mineral Resources, Chinese Academy of Geological Sciences (CAGS), Beijing 100037, China 2 R&D Center for Saline Lake and Epithermal Deposits, CAGS, Beijing 100037, China 3 Open Laboratory of Saline Lake Resourses and Environment, CAGS, Beijing 100037, China 4 Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100081, China 2007Chinese Science Bulletin2007,52,19:2
4Nitrogen isotope ratios in estuarine biota collected along a nutrient gradient in Narragansett Bay, Rhode Island, USA 显示文摘Pruell R J Taplin B K M Lake J L Jayaraman S 2006Marine Pollution Bulletin2006,52,6:1
5Modelling environmental influences on property prices in an urban environment 显示文摘Iain R Lake etc 1998Computer Environment and Urban System1998,22,2:1
6Journal of Materials Science显示文摘Chen C P Lakes R S 199126(2):53971991,26,2:1
7Enteric nervous system develop- ment: migration, differentiation, and disease显示文摘Lake J I Heuckeroth R O 2013Am J Physi- ol Gastrointest Liver Physiol2013,305,1:1
8Management of retained colorectalforeign bodies: predictors of operative intervention显示文摘Lake JP Essani R Petrone P 2004Dis Colon Rectum2004,47,10:1
9Balancing of Rotating Systems during Operation显示文摘Van De Vegte J Lake R T 1978Journal of Sound and Vibration1978,,57:1
10Isotope fractionation and atmospheric oxygen: Implications for phan- erozoic 02 evolution显示文摘Berner R A Petsch S T Lake J A Beerling D J 2000Science2000,287,:1
11Six weeks of training does not change running mechanics or improve running economy显示文摘Lake M J Cavanagh P R 1996Med Sci Sports Exerc1996,28,7:1
12Balancing of rotating system during operation显示文摘Van de Vegte J Lake R T 1978Journal of Sound and Vibration1978,57,2:1
13Foam structure with a negative Poisson's ratio显示文摘LAKES R S 1987Science1987,,235:1
14Changing indications for livertransplantation显示文摘LAKE J R 1993Gastroenterol Clin North Am1993,22,2:1
15Negative Poisson's ratio polymeric and metallic foams 显示文摘FRIIS E A LAKES R S PARK J B 1988Journal of Material Science1988,,23:1
16Australian futures:Aquatic ecosystems and human water usage显示文摘Lake P S Bond N R 0,,39:1
17Development of a passively deployed roll-out solar array显示文摘Barret R Campbell D Lake M S 2006AIAA Journal2006,4011,:1
18NOTCH signaling: cell fate control and signal integration in development显示文摘Artavanis Tsakonas S Rand M D Lake R J 1999Science1999,284,5415:1
19Pattern analysis of dune- field parameters显示文摘Ewing R C Kocurek G Lake L W 2006Earth Surface Processes and Landforms2006,31,:1
20Balancing of rotating system during operation显示文摘Van de Vegte J Lake R T 1978Journal of Sound and Vibration1978,51,2:1
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