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ISOLATION AND CHARACTERIZATION OF BACTERIA FOR REMOVAL OF SULFUR IN ORGANIC COMPOUNDS

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化工学报 2000年第S1期51卷 272-275页

作者： Jiang Chengying, Xie Yuchun, Liu Huizhou and Chen Jiayong (Young Scientist Laboratory of Separation Science & Engineering, State Key Laboratory of Biochemical Engineering, institute of Chemical Metallurgy, chinese academy of sciences, beijing 100080,)

Four bacterial strains have been isolated for their ability to growth on dibenzothiophene (DBT), dibenzothiophene sulfone (DBTO2). The results show that different bacteria strains oxidize the DBT to different products through different pathways. R-6 and R-16 metabolize DBT to DBTO2 and HBP; they are identified as species of Bacillus brevis and Bacillus sphaericus. For long time storage, R-9 identified as Nocardia globerula oxidizes DBT to DBT-sulfone (DBTO2) and benzenamine n-phenyl. The optimum temperature and pH for growth of R-16 are 32℃ and 7.02 respectively. The pH of broth decreases during the processes.

关键词： biodegradation biodesulfurization dibenzothiophene

Age of the fossil Dali Man in north-central china deduced from chronostratigraphy of the loess-palosol sequence

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Age of the fossil Dali Man in north-central China deduced fr...

中国科学院地质与地球物理研究所2002学术年会

作者： Jule Xiao~(a,b),Changzhu Jin~c,Yizhi Zhu~b a institute of Geology and Geophysics,chinese academy of sciences,P.O.Box 9825,beijing 100029,china b institute of Earth Environment,chinese academy of sciences,P.O.Box 17,Xi’an 710075,china c institute of Vertebrate Paleontology and Paleoanthropology,chinese academy of sciences,beijing 100044,china

Dali Man,an archaic type of early Homo sapiens,is of great significance to the origin of Homo *** have been made during the past decades in the understanding of the fossil human skull as well as the accompanying mammalian fossils and stone ***,the absolute age of the fossil Dali Man still remains *** on the magnetic susceptibility of loess sediments and the relationship of terracing process with climatic condition,we correlated the loess sequence and the subjacent terrace alluvium at the Dali Man site with the well-studied loess-paleosol sequence at Luochuan in the central part of the chinese Loess *** correlation indicates that the loess-paleosol sequence at the Dali Man site extends down to the paleosol S2,and the underlying fluvial deposits correspond to the loess *** the Dali Man skull appears in the basal gravel layer of the terrace,and because the deposition of the terrace gravels would occur during the transition from S3 paleosol formation to L3 loess accumulation,the age of the fossil Dali Man is inferred to be ca 270 ka,which is equivalent to the age of the boundary between the loess L3 and paleosol S3 on the magnetic susceptibility time series of the Luochuan loess-paleosol sequence.

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Neutral wind-driven gradient drift instability in the low-latitude daytime E region

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Neutral wind-driven gradient drift instability in the low-la...

中国科学院地质与地球物理研究所第11届（2011年度）学术年会

作者： Zhijin Li,Libo Liu,Weixing Wan,and Baiqi Ning 1 beijing National Observatory of Space Environment,institute of Geology and Geophysics,chinese academy of sciences,beijing,china. 2 Graduate University of chinese academy of sciences,beijing,china.

[1]We present strong evidence for the wind-driving,daytime E region field-aligned irregularities(FAIs) on the basis of Sanya VHF radar observations on 29 June 2009. The observed sporadic E(Es) and echoing layers show a clear diurnal tidal descending trend and a gravity-wave-scale oscillation with a period of 40-50 min,which are consistent with the diurnal tidal height evolution seen from the meteor wind observations. The most important finding is that the daytime continuous FAIs are closely related to the negative vertical zonal wind shear,which also forms the dense ion *** observations suggest that the FAIs are generated on both sides of the Es *** echoes form two layers with 10 km vertical distance,about half the vertical wavelength of the diurnal *** results,for the first time,demonstrate that the daytime E region continuous FAIs can be formed by the wind-driven gradient drift *** suggest that the latitudinal variation of the daytime E region FAI morphologies is caused by the dip angle dependence of the instability growth *** echoes observed elsewhere at low latitudes and midlatitudes may also be attributed to the wind effects.

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The Inner Pressure of the Atoms in a Solid in Refined TFD Theory

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The Inner Pressure of the Atoms in a Solid in Refined TFD Th...

2002年微纳米国际会议

作者： Ru-Zeng Zhu Yu-Hua Wei Jin Qian State Key Laboratory of Nonlinear Mechanics (LNM) institute of Mechanics chinese academy of sciences beijing 100080 china Department of physics Tsinghua University beijing 100084 china

＜正＞ The relation between the inner pressure of an atom in a solid and the density of energy of electrons under Refined TFD theory is given.

关键词： Inner pressure TFD theory energy density

CMOS image sensor with optimal video sampling scheme

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Science china(Information sciences) 2012年第6期55卷 1429-1435页

作者： GUAN Ning,ZHANG Xu,LIU Bo,DONG Zan,HUANG BeiJu,GUI Yun,HAN JianQiang,WANG Yuan,ZHANG ZanYun & CHEN HongDa State Key Laboratory on Integrated Optoelectronics,institute of Semiconductors,chinese academy of Science,beijing 100083,china State Key Laboratory on Integrated Optoelectronics Institute of Semiconductors Chinese Academy of Science Beijing China

Time-varying illumination on the focal plane is a three-dimensional *** sam-pling theory proves that the temporal resolution can be optimally improved by a factor of 2～(1/2) while the spatial resolution is reserved by changing the sampling *** on the theory,a prototype multi-field CMOS image sensor (CIS) is designed for a 0.35-μm 2P4M CMOS *** pixels in 4×4-pixel clusters are assembled into 16 fields over the whole *** pins (resets and shutters) of pixels are separated which provides the ability of sampling the illumination with the optimal sampling scheme.

关键词： CMOS image sensors sampling methods deinterlacing high speed photography selective readout

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菌紫质的结构和功能研究进展

生物化学与生物物理进展 2001年第3期28卷 342-347页

作者：万逢义胡坤生中国科学院生物物理研究所北京100101

紫膜中具有质子泵功能的菌紫质 (bR)是整合膜蛋白 ,它是 7个α螺旋跨膜蛋白家族的基本原型 .目前 ,具有光驱动质子泵的bR是最典型的高效离子转运蛋白之一 .它很可能成为其载体转运机制在分子甚至原子水平上被阐明的第一个膜蛋白 .概述... 详细信息

紫膜中具有质子泵功能的菌紫质 (bR)是整合膜蛋白 ,它是 7个α螺旋跨膜蛋白家族的基本原型 .目前 ,具有光驱动质子泵的bR是最典型的高效离子转运蛋白之一 .它很可能成为其载体转运机制在分子甚至原子水平上被阐明的第一个膜蛋白 .概述了近年来对菌紫质结构 ,光循环和质子泵机理研究的进展 .

关键词：菌紫质质子泵结构水分子功能

Long-Term Effect of No-Tillage on Soil Organic Carbon Fractions in a Continuous Maize Cropping System of Northeast china

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Pedosphere 2010年第3期20卷 285-292页

作者： HUANG Shan SUN Yan-Ni RUI Wen-Yi LIU Wu-Ren ZHANG Wei-Jian institute of Applied Ecology Nanjing Agricultural University Nanjing 210095 (China) Jilin academy of Agricultural sciences Changchun 130124 (China) Centre for Agroecology & Farming Systems Institute of Crop Science Chinese Academy of Agricultural Sciences Beijing100081 (China)

Increasing evidence has shown that conservation tillage is an effective agricultural practice to increase carbon （C） sequestration in soils. In order to understand the mechanisms underlying the responses of soil organic carbon （SOC） to tillage regimes, physical fractionation techniques were employed to evaluate the effect of long-term no-tillage （NT） on soil aggregation and SOC fractions. Results showed that NT increased the concentration of total SOC by 18.1% compared with conventional tillage （CT） under a long-term maize （Zea mays L.） cropping system in Northeast china. The proportion of soil large macroaggregates （〉 2 000 μm） was higher in NT than that in CT, while small macroaggregates （250-2 000μm） showed an opposite trend. Therefore, the total proportion of macroaggregates （〉 2 000 and 250-2 000μm） was not affected by tillage management. However, C concentrations of macroaggregates on a whole soil basis were higher under NT relative to CT, indicating that both the amount of aggregation and aggregate turnover affected C stabilization. Carbon concentrations of intra-aggregate particulate organic matter associated with microaggregates （iPOM-m） and microaggregates occluded within macroaggregates （iPOM-mM） in NT were 1.6 and 1.8 times greater than those in CT, respectively. Carbon proportions of iPOM-n and iPOM-mM in the total SOC increased from 5.4% and 6.3% in CT to 7.2% and 9.7% in NT, respectively. Furthermore, the difference in the microaggregate protected C （i. e., iPOM-m and iPOM-mM） between NT and CT could explain 45.4% of the difference in the whole SOC. The above results indicate that NT stimulates C accumulation within microaggregates which then are further acted upon in the soil to form macroaggregates. The shift of SOC within microaggregates is beneficial for long-term C sequestration in soil. We also corroborate that the microaggregate protected C is useful as a pool for assessing the impact of tillage management on SOC storage.

关键词： carbon sequestration conservation tillage particulate organic matter physical fractionation soil aggregates

R & D OF CAST SUPERALLOYS AND PROCESSING FOR GAS TURBINE BLADES IN BIAM

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Acta Metallurgica Sinica(English Letters) 1996年第6期9卷 457-463页

作者： Y.F. Han and R.Z. Chen(institute of Aeronautical Materials, beijing 100095,china ) beijing Inst of Aeronautical Materials Beijing China

Research and development of cast superalloys and processing for turbine blades in BIAM during the last 35 years have been reviewed briefly in this paper.

关键词： cast nickel base superalloy turbine blade ceramic core shell Mold

Duststorms and the Related Disasters

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Duststorms and the Related Disasters

第三届中日韩气象学术会议

作者： ZENG Qing-Cun~1 DONG Chao-Hua~2 PENG Gong-Bing~3 ZHAO Si-Xiong~1 FANG Zong-Yi~2 JIAO Mei-Yan~4 institute of Atmospheric physics chinese academy of sciences beijing 100029 china National Satellite Meteorological Center china Meteorological Administration beijing 100081 china institute of Geographic sciences and Resource Research chinese academy of sciences beijing 100101 china National Meteorological Center china Meteorological Administration beijing 100081 china

＜正＞This is a report describing briefly the“Duststorm monitoring,Predicting and Warming system”.This system was developed by the scientists of china Meteorological Administration,chinese academy of sciences and some universities and applied as a subroutine in the National Satellite Meteorological Center and the National Meteorological Center since 2002,and became an operational one in the daily routine service since *** system consists of the following components: the satellite remote sensing and the ground based observational network,the short- range numerical dust-weather prediction,extra-annual and extraseasonal prediction of anomalies of spring atmospheric circulation and soil moisture,renewable GIS （Geographic Information System）and the information and evaluation of related disasters.

关键词： duststorm monitoring predicting warning disaster evaluation climate prediction