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| 1 | Elemental and isotopic compositions of the hydrothermal sulfide on the East Pacific Rise near 13°N显示文摘The mineralogical,elemental,and isotopic characteristics of a hydrothermal sulfide sample from one dredge station (12°42.30'N,103°54.48'W,water depth 2655 m) on the East Pacific Rise near 13°N were analyzed.The hydrothermal sulfide was composed mainly of sphalerite,chalcopyrite,and pyrite and was a Zn-rich sulfide;in layer ep-s-1,goethite formed by secondary oxidation was found.The concentrations of rare elements,such as Li (0.15×10-6-0.30×10-6),Be (0.01×10-6-0.05×10-6),Zr (73.8×10-9-1344×10-9),Nb (8.14×10-9-64.7×10-9),Hf (2.54×10-9-28.0×10-9),and Ta (0.203×10-9-1.21×10-9),were far lower in the hydrothermal sulfide than in the ocean crust,whereas the content of Au was higher and the contents of Co,Ni,Sr,Cs,Ba,Bi,and U were low.The correlations between Zn and Cr,Cd and Ga,Cu and P,P and In (R2 > 0.8) were positive,whereas those between Zn and Fe,Cu,and Ba (R2 > 0.8) were distinctly negative.From low-temperature mineral assemblages to high-temperature mineral assemblages,the spatial distributions of dispersive and rare elements (e.g.In,Li,Cs) in the hydrothermal sulfide displayed corresponding variations.The variations observed in some elements (e.g.,Cd,Cs,P) are controlled by Zn,Fe,and Cu sulfides,respectively.Seafloor weathering accounts for the enrichment of V,Mn,and rare earth elements (REE) in the henna sulfide-oxidation layer that bears the secondary oxide mineral,leading to identical REE patterns for this layer (ep-s-1) and seawater.Seafloor weathering also distinctly affects the correlations between the element ratios of the hydrothermal sulfide.From high-temperature mineral assemblages to low-temperature mineral assemblages,Fe content and δ 34S value of the hydrothermal sulfide increase gradually,and Zn content and lead isotopic ratios decrease gradually on the contrary,which indicate the influences of seawater on elements and the sulfur and lead isotopic compositions enhance gradually during the formation of hydrothermal sulfides. | ZENG ZhiGang1,CHEN DaiGeng1,2,YIN XueBo1,WANG XiaoYuan1,ZHANG GuoLiang1,2 & WANG XiaoMei1,2 1 Seafloor Hydrothermal Activity Laboratory of the Key Laboratory of Marine Geology and Environment,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China 2 Graduate School of Chinese Academy of Sciences,Beijing 100049,China | 2010 | Science China Earth Sciences2010，53，2： | 12 |
| 2 | Origin of a native sulfur chimney in the Kueishantao hydrothermal field, offshore northeast Taiwan显示文摘Analyses of rare earth and trace element concentrations of native sulfur samples from the Kueishantao hydrothermal field were performed at the Seafloor Hydrothermal Activity Laboratory of the Key Labo-ratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences. Using an Elan DRC II ICP-MS, and combining the sulfur isotopic compositions of native sulfur samples, we studied the sources and formation of a native sulfur chimney. The results show, when comparing them with native sulfur from crater lakes and other volcanic areas, that the native sulfur content of this chimney is very high (99.96%), the rare earth element (REE) and trace element constituents of the chimney are very low (ΣREE<21×10?9), and the chondrite-normalized REE patterns of the native sulfur samples are similar to those of the Kueishantao andesite, implying that the interaction of subseafloor fluid-andesite at the Kueishantao hydrothermal field was of short duration. The sulfur isotopic compo-sitions of the native sulfur samples reveal that the sulfur of the chimney, from H2S and SO2, originated by magmatic degassing and that the REEs and trace elements are mostly from the Kueishantao ande-site and partly from seawater. Combining these results with an analysis of the thermodynamics, it is clear that from the relatively low temperature (<116 ℃ ), the oxygenated and acidic environment is favorable for formation of this native sulfur chimney in the Kueishantao hydrothermal field. | ZENG ZhiGang1, LIU ChangHua1,2, CHEN ChenTung A3, YIN XueBo1, CHEN DaiGeng1,2, WANG XiaoYuan1,2, WANG XiaoMei1,2 & ZHANG GuoLiang1,2 1 Seafloor Hydrothermal Activity Laboratory of the Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3 Institute of Marine Geology and Chemistry, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, China | 2007 | Science China Earth Sciences2007，50，11： | 10 |
| 3 | 活性氧化铝除氟研究显示文摘针对目前活性氧化铝饮水除氟中存在的问题,进行了生产性试验研究,通过采用原水投加CO_2气体降低pH值、小颗粒活性氧化铝、大流量短历时的NaOH循环再生法等新技术,提高了活性氧化铝的吸附容量和处理水的能力,克服滤料板结和假疲劳,除氟效果稳定可靠,水质好,再生时间短,用药省,降低了基建投资和运转费用。 | North China Municipal Engineering Design Institute A full-scale plant was set up for studying the existing problems on the fluoride removal from drinking water by activated alumina. Some new methods was adopted,such as the addition of CO2to reduce water pH value,the use of small-sized activated alumina,and the employment of a cyclic regeneration at large flow rate with NaOH as regenerant,which result in the improvement of adsorption capacity of activated alumina and treatment capacity, the elimination of the hardening of filtration materials and false fatigue,stable and reliable effectiveness,good quality in water,short regeneration time,small consumption of regenerant. And then the capital and openational costs were reduced. | 1989 | 中国给水排水1989，5，3： | 5 |
| 4 | Thermal analysis of the baffle structure of the Solar Space Telescope显示文摘The SST(Space Solar Telescope) is an astronomical telescope with a primary mirror of 1 m in diameter.It observes the sun with a small view field to ensure that its high spatial resolution imaging has 0.1″-0.15″ and high SNR(signal to noise ratio).Surrounding the small view field is still the sun,which is an intense source of both heat and stray light.The baffles(the main baffle,the aperture,and the outer baffle),which are used to eliminate the stray light,will change the thermal flux in the SST and will weaken the effect of the thermal control design.In this study,the compatibility analysis of the thermal effect of baffle structures in SST is performed.The GCF(Geometry Composing Function) and BRDF(Bidirectional Reflectance Distribution Function),which are two inherent related parameters in the compatibility analysis,are derived.The objective and method of the compatibility analysis are determined.With the thermal analysis software,the temperature fields are calculated for different lengths of the main baffle,different radii of apertures,different lengths of the outer baffle with a 3' tilt angle and 16' tilt angle,and different tilt angles of the outer baffle with a 200 mm length.A series of configurations and sizes of the baffles are studied with the goals of both thermal control and elimination of stray light.The design of the baffle structure of SST is achieved:the main baffle of length 4100 mm,the internal shield of radius 494 mm,the outer baffle of length 200 mm,and the outer baffle of tilt angle 3' are successfully designed.This paper presents the relationship between the thermal control design and stray light elimination plan in the SST.The aims of the optimal design of the baffle structure of SST are reached.The thoughts and methods of the optimal analysis are also useful for similar optical telescopes designed for solar observation. | LI Rong1,2,3 & WANG Sen1,3 1 National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China 2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3 Key Laboratory of Solar Activity,National Astronomical Observatories of Chinese Academy of Sciences,Beijing 100012,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，9： | 3 |
| 5 | What does the Sun tell and hint now?显示文摘Some historical records,which have held since the beginning of modern solar activity cycles,are being broken by the present Sun:cycle 23 records the longest cycle length and fall time;latitudes of high-latitude sunspots belonging to a new cycle around the minimum time of the cycle are statistically the lowest at present,compared with those of other cycles;there are only one or no sunspots in a month appearing at high latitudes for 58 months,which is the first time that such a long duration has been observed.The solar dynamo is believed to be slowing down due to:(1) the minimum smoothed monthly mean sunspot number is the smallest since cycle 16 onwards,and even probably among all modern solar cycles;and (2) once the time interval between the first observations of two neighboring sunspot groups is larger than 14d,it should be approximately regarded as an observation of no sunspots on the visible solar disk,called a spotless event.Spotless events occur with the highest frequency around the minimum time of cycle 24,and the longest spotless event also appears around the minimum time for observations of the Sun since cycle 16.Cycle 24 is expected to have the lowest level of sunspot activity from cycle 16 onwards and even probably for all of the modern solar cycles. | Ke-Jun Li1,2 1 National Astronomical Observatories /Yunnan Observatory,Chinese Academy of Sciences,Kunming 650011,China 2 Key Laboratory of Solar Activity,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China | 2009 | Research in Astronomy and Astrophysics2009，9，9： | 3 |
| 6 | BLIND AND INTERNET显示文摘BLINDANDINTERNETBLINDANDINTERNETZhaoGuanglu(ChineseAcademyofMedicalSciencesandPekingUnionMedicalCollege,Beijing100730China)In... | Qin-zhang Ding(The Department of Neuropsychiatry.Second Affiliated Hospital of Hebei Medical UniversityShijiazhuang. Heibe, 050000 China)In china a and all of the world, it is always using cloth bands to restrain activities of thelimbs in the patient | 1995 | Chinese Journal of Biomedical Engineering(English Edition)1995，4，4： | 2 |
| 7 | Bactericidal oils and some of their isolated constituents against Campylobacter jejuni, Escherichia coli, Listeria monocytogenes and Salmonella enterica 显示文摘 | Friedman M Henika PR activities of plant essential Mandrell RE | 2002 | J Food Prot2002，65，10： | 1 |
| 8 | Results of the TIMI IIIB显示文摘 | TIM/IIIB investigators effects of tissue plasrninogen activator and comparison of early Invasive and conservative st rategies in unstable angina and Non-Q-wave myocardial infraction | 1994 | Circulation1994，89，： | 1 |
| 9 | Interneuroticism, and social relationships on subjective well-being 显示文摘 | Hotard S R MeFatter R M active effects of extraversion MeWhirter R M | 1989 | Journal of Personality and Social Psychology1989，57，2： | 1 |
| 10 | A Study on The Structure/Phase Transformation of Titanate Nanotubes Synthesized at Various Hydrothermal Temperatures显示文摘 | Activity of TiO2 Thin of Titanate Nanotube Seo H K Kim G S Ansari S G | 2008 | Solar Energy Materials and Solar Cells2008，92，11： | 1 |
| 11 | 50 carotenoids, sarcinaxanthin, sar- cinaxanthin monoglucoside, and sarcinaxanthin diglucoside, ob- tained from Mlerococcm yunnanen~la 显示文摘 | Osawa A Ishii Y Sasamura N et aL Characterization and an- tio~ddative activities of rare C | 2010 | J Oleo Sci2010，59，12： | 1 |
| 12 | American Academy of Clinical Toxicology; European Association of Poisons Centres and Clinical Toxicologists 显示文摘 | Position statement and practice guidelines on the use of multi-dose activated charcoal in the treatment of acute poisoning | 1999 | J Toxicol Clin Toxicol1999，37，6： | 1 |
| 13 | Rationale and design of ACTIVE: The atrial fibrillation Clopidogrel trial with irbesartan for prevention of vascular events 显示文摘 | The Active Steering Committee | 2006 | Am Heart J2006，151，6： | 1 |
| 14 | Clopidogrel plus aspirin versus oral anticoagulation for atrial fibrillation in the Atrial fibrillation Clopidogrel Trial with Irbesartan for prevention of Vascular Events ( ACTIVE W) : a randomised controlled trial 显示文摘 | ACTIVE Writing Group of the ACTIVE Investigators Connolly S Pogue J Hart R | 2006 | Lancet2006，367，9526： | 1 |
| 15 | EORTC Early Clinical Trials Group显示文摘 | Catimel G Verweij J Mattijssen V Docetaxel (Taxotere):an active drug for the treatment of patients with advanced squamous cell carcinoma of the head and neck | 1994 | Ann Oncol1994，5，： | 1 |
| 16 | Composition analysis and polysaccharides from Den- drobium chrysotoxum显示文摘 | Sun Y D Wang Z H Ye Q anti-proliferation activity of S | 2013 | International Journal of Biologi- cal Macromolecules2013，62，： | 1 |
| 17 | leaf extracts显示文摘 | N Ozsoy A Can R Yanardag Antioxidant activity of Smilax excelsa L | 2008 | Food Chemistry2008，110，： | 1 |
| 18 | in diabetic caucasians: Identification of a P12A PPARγ2 Missense Mutation 显示文摘 | Yen CJ Beamer BA Negri C Molecular scanning of the human peroxisome proliferator activated receptorγ gene 8 | 1997 | Biochem Biophys Res Commun1997，241，： | 1 |
| 19 | Enzymatic activity in the 显示文摘 | Frφlund B Griebe T Nielsen activated sludge floe matrix P H | 1995 | Applied Microbiological Biotechnology1995，43，： | 1 |
| 20 | Clinical practice guideline : ADHD : clini- cal practice guideline for the diagnosis, evaluation, and treatment of Attention Deficit/Hyperactivity Disorder in children and adolescents 显示文摘 | American Academy of Pediatrics Committee on Quality Im- provement and Subcommittee on Attention-Deficit/Hyper- activity Disorder | 2011 | Pediatrics2011，128，5： | 1 |
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