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Discovery of Paleogene marine stratum along the southern side of Yarlung-Zangbo suture zone and its implications in tectonics

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Science China Earth Sciences 2005年第5期48卷 647-661页

作者： LI Guobiao 1., WAN Xiaoqiao 1., LIU Wencan 1., LIANG Dingyi 1.& Hyesu Yun 2.1. China University of Geosciences, Beijing 1.0083, China 2. chungnam national University,{2., 305-350, korea 1. China University of Geosciences 100083 Beijing China 2. {1. national University 305-350 Daejon Korea

The Jiachala Formatiom is a new lithostratigraphic unit set up in this paper. This is the first report on the Paleogene marine sequences and microfaunas in Gyangze to the southern side of the Yarlung-Zangbo suture zone. On the basis of fossil abundance, species diversity, dominant species and first and last occurrences of key species, three dinoflagellate assemblages and three polynological assemblages were recognized in the Jiachala Formatiom. They are in ascending order as follows: Apectodinium quinquelatum-Apectodinium hyperacanthum, Cannin- gia chinensis-Palaeoperidinium pyrophorum and Cymatiosphaera reticulosa-Samlandia chla- mydophora dinoflagellate assemblages, and Arliaceoipollenites baculatus-Anacolosidites sub- trudens, Aglaoreidia cyclops-Pinuspollenites microinsigis, and Elaeangnacites asper-Ilexpol- lenites iliacus polynological Assemblages. According to the assemblages, the age of the Jiachala Formation is referred to Paleocene-early Eocene. The preliminary study on the Jiachala Forma- tion shows that this group of Paleogene deposits accumulated in an underfilled peripheral fore- land basin which was in response to the load of the crust thickening resulted from the Asia-India collision. The stratigraphic evidences provided by the evolution of foreland basin indicate that the India-Asia initional collision should occure near the Cretaceous/Paleogene boundary. The de- velopment and evolution of the southern Tibet foreland basin was under the control of the stress field from the subduct-collision between India and Asia and the structure pattern of the basement. The withering of Tethys Sea might occur after early Eocene in the Gyangze basin and should be after Priabonian of late Eocene in southern Tibet.

关键词： Paleogene marine strata, Jiachala Formation, microfossils, underfilled peripheral foreland basin, initional collision, Gyangze.

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Parentage determination of an isolated Yangtze finless porpoise population Neophocaena phocaenoides asiaeorientalis in the Yangtze Tian-e-Zhou Baiji national Natural Reserve based on molecular data

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Progress in Natural Science:Materials International 2005年第2期15卷 54-61页

作者： XIA Junhong 1.2. ZHENG Jinsong 1.2. XU Limei 1.2.and WANG Ding1.(1. Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072. China 2. Graduate School of the Chinese Academy of Sciences, Beijing 1.0039, China) Institute of Hydrobiology Chinese Academy of Sciences Wuhan 430072 China. Graduate School of the Chinese Academy of Sciences Beijing 100039 China

Reproductive behaviors are poorly known for the Yangtze finless porpoise Neophocaena phocaenoides asiaeorientalis. In this study, the parentage of an isolated Yangtze finless porpoise population inhabiting the Yangtze Tian-e-Zhou Baiji national Natural Reserve is determined by analysis of microsatellite loci and mitochondrial DNA (mtDNA) control region sequences, and the porpoise's reproductive behaviors are studied. Overall 4 full parentage assignments and additional 3 single parentage assignments were determined for the population of {1. individuals. The analysis shows that their estimated reproductive cycle is shorter than that reported previously and there probably exists an overlapping between gestation and lactation period. The study also shows that the female does not show fidelity to a particular male for breeding and vice versa, the oldest males did not monopolize mating and the dominance rank could not be so strict for the porpoise society. Moreover, the porpoise's mating pattern and relatedness among candidate parents are discussed here. These results provide important information for making guidelines of management and conservation for this protected population.

关键词： Yangtze finless porpoise isolated population reproductive behavior parentage

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北京市统计局国家统计局北京调查总队关于印发《北京市统计行政处罚裁量基准》的通知(京统发[2.2.]1.3号)

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北京市人民政府公报 2024年第19期 54-71页

作者： 1.北京市统计局 2.国家统计局北京调查总队北京市统计局国家统计局北京调查总队

市局所属各单位、总队各处室,各区统计局、经济社会调查队,北京经济技术开发区经济发展局、经济社会调查队,国家统计局各区调查队:根据《国家统计局关于进一步规范统计行政处罚裁量基准制定的指导意见》(国统字[2.2.]1.7号)要求,北京市... 详细信息

市局所属各单位、总队各处室,各区统计局、经济社会调查队,北京经济技术开发区经济发展局、经济社会调查队,国家统计局各区调查队:根据《国家统计局关于进一步规范统计行政处罚裁量基准制定的指导意见》(国统字[2.2.]1.7号)要求,北京市统计局、国家统计局北京调查总队结合北京统计调查工作及经济社会发展实际,对《北京市统计行政处罚裁量基准(2.2.年版)》进行了修订,并经北京市统计局第54次党组会议和国家统计局北京调查总队第38次党组会议审议通过。现将《北京市统计行政处罚裁量基准》印发给你们,请认真执行。

关键词：裁量基准党组会议国家统计局经济发展局北京经济技术开发区经济社会调查通知印发

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CORROSION AND MECHANICAL BEHAVIOR OF COPPER-NIOBIUM NANO-FILAMENTARY MICRO-COMPOSITES FOR HIGH PERFORMANCE ELECTRICAL CONDUCTOR WIRE

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Acta Metallurgica Sinica(English Letters) 2002年第2期15卷 154-159页

作者： Y Choi1., T.W.Lim1. and S.I. Hong2. 1.Department of Metallurgical Engineering, Sunmoon University, Asan {1. 336-840, korea 2.Department of Metallurgical Engineering, {1. national University, Taedok Science Town, Daejeon 305-764,korea Department of Metallurgical Engineering Sunnioon University Department of Metallurgical Engineering Chungnam National University

Corrosion behavior of heavily drawn bundled Copper-niobium filamentarymicro-composite was studied as a function of niobium content to develop the relationship betweenmicrostructure and corrosion behavior in aqueous 30 percent HCl-FeCl_3 solution. TEM observationrevealed that niobium filaments were distributed regularly in copper matrix along the sides of atriangular unit cell in the transverse section and more sub-grain boundaries were absorbed atcopper/niobium phase boundaries with increasing niobium content. The corrosion potential and rate inaqueous 30 percent HCl-1. percent FeCl_3 was-680.3m V_(SHE) and 1.1.9 X 1.^(-5)A/cm^2. Thecorrosion potential and rate decreased as increasing niobium content and FeCl_3. The yield stresscan be described as the sum of the substructure strengthening component due to elongated grains,subgrains and/or cells, the phase boundary strengthening term associated with the Hall-Petch typeinteraction between dislocations and phase boundaries and precipitate strengthening component.

关键词： Cu-Nb micro-composites corrosion microstructure

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Some key technics of drop tower experiment device of national Microgravity Laboratory (China) (NMLC)

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Science China(Technological Sciences) 2005年第3期48卷 305-316页

作者： ZHANG Xiaoqian 1., YUAN Longgen 1., WU Wendong 1., TIAN Lanqiao 2.& YAO Kangzhuang 2.1. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 1.0080, China 2. Institute of Mechanics, Chinese Academy of Sciences, Beijing 1.0080, China 1. Institute of Engineering Thermophysics Chinese Academy of Sciences 100080 Beijing China 2. Institute of Mechanics Chinese Academy of Sciences 100080 Beijing China

Drop tower is an important ground based facility for microgravity science experiment. The technical performances of the drop tower NMLC are advanced compared with similar facilities in the US, Germany and Japan. The main components such as drop capsule, deceleration devices, release mechanism present its advantages and creativities.

关键词： drop tower facility,drop capsule,deceleration devices,release mechanism.

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GENERALIZED SIMPLE NONCOMMUTATIVE TORI

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Chinese Annals of Mathematics,Series B 2002年第4期23卷 539-544页

作者： C. G. PARKDepartment of Mathematics, chungnam {1. Uinversity, Taejon {2.-764, South korea. Department of Mathematics Chungnam National Uinversity Taejon 305-764 South Korea

The generalized noncommutative torus Tkp of rank n was defined in [4] by the crossed product Am/k ×a3 Z ×a4 … ×an Z, where the actions ai of Z on the fibre Mk(C) of a rational rotation algebra Am/k are trivial, and C*(kZ × kZ) ×a3 Z ×a4 ... ×an Z is a completely irrational noncommutative torus Ap of rank n. It is shown in this paper that Tkp is strongly Morita equivalent to Ap, and that Tkp (?) Mp∞ is isomorphic to Ap (?) Mk(C) (?) Mp∞ if and only if the set of prime factors of k is a subset of the set of prime factors of p.

关键词： Noncommutative torus Equivalence bimodule UHF-algebra Cuntz algebra Crossed product

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High Coercive NdFeB Thin Film Obtained by Diffusion Annealing

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Journal of Materials Science & Technology 2000年第2期16卷 111-112页

作者： MJ.Kim and Y.B.Kim (korea Research Institute of Standards and Science, Taejon {1.-600,{2.) C.B.Song (Kongju national University, Kongju 31.-701. chungnam,{2.) Y.Li, D.S.Suhr, C.O.Kim and T.K.Kim (chungnam national University, Taejon {1.-340,{2.) korea Research Institute of Standards and Science Taejon 305-600 South Korea Kongju national University Kongju 314-701 Chungnam South Korea chungnam {1. University Taejon 305-340 South Korea

The magnetic properties and microstructure of diffusion annealed [Ta/Nd/NdFeB/Nd/Ta]thin films have been investigated. The films were deposited on Si substrate with various thickness ratio of Nd/NdFeB layer (R=0～3.3), then diffused and crystallized by annealing at 650℃ for 1. min. The film without Nd layer showed soft magnetic behavior and high content of a-Fe phase. The films with R > =1.showed good hard magnetic properties with the high coercivity of about 2. kOe.

关键词： Thin NdFeB High Coercive NdFeB Thin Film Obtained by Diffusion Annealing

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An integrated decision method for prediction of tropical cyclone movement by using genetic algorithm

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Science China Earth Sciences 2005年第3期48卷 429-440页

作者： YANG Yuanqin1.& WANG Jizhi2.1. {1. Meteorological Center, Beijing 1.0081.China 2. Chinese Academy of Meteorological Sciences, Beijing 1.0081. China 1. national Meteorological Center 100081 Beijing China 2. Chinese Academy of Meteorological Sciences 100081 Beijing China

In this study an integrated decision method for the multi-prediction results of tropical cyclone movements by using genetic algorithm (GA) has been adopted. A genetic learning artifi- cial neural network (GLANN) as a learning mechanism for track prediction was developed through training with the huge samples of typhoon tracks from 1.84 to 2.02. The prediction of typhoon motion is to consider how to suit the dynamic change of environment, where typhoon passed through. The neural network structure is described by GA. A fitness function for choice of GA is given to approach the maximum of fitness (the minimum of the errors). Parallel comparing analyses for prediction abilities of unusual typhoon tracks in recent years by GLANN with multi-forecast methods were conducted. More types of cases were employed in the comparing analyses, which consist of the typhoon, Winnie, No.1., in 1.97, characterized by a long life over the ocean and in the mainland with severe effect on China, the 1. unusual typhoon tracks in the 1.90s, the tracks with landfall and affected action in 1.98 and the typhoons born in the Northwestern Pacific and the South China Sea in 2.00, including the 2.—48 h forecast, etc. The results indicated that for prediction ability of typhoon tracks, specially for unusual typhoons, GA decision-making developed in this study is superior to the others.

关键词： genetic algorithm, integrated decision, prediction of tropical cyclone.

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Serpentine Jade(Bowenite) in korea

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Journal of Earth Science 2000年第2期19卷 11-14页

作者： Kim Won Sa Department of Geology, chungnam {1. University, Taejon {2.-764, korea

A bowenite deposit, recently discovered in Booyo County, Republic of korea, is the first of its kind in the country. This deposit is located along the contacts of garnet veins intruding the serpentinite. The bowenite is translucent, dark green in color, greasy in luster, 5 in Mohs ’ scale of hardness, ～{1.57 in SG , {1.58 in RI , and 1.56 in N D . The X ray powder diffraction analysis identified the bowenite as antigorite of the serpentine group minerals, whose major chemical compositions are composed of SiO {1.(4{1.49 %), MgO (39.08 %), Fe {1. 3 (3.85 %), and H {1. (1..87 %) and whose important trace elements include Cr ({1.1.8×1. -6 ), Ni (1.1.0×1. -6 ), and Co (58×1. -6 ). The IR spectrum shows the absorptions at 3 670 (OH stretching), 1.1.0, 1.070, 980 (SiO stretching) and 61. cm -1. (OH bending). The DTA/TGA thermogram shows the peaks at 343, 755 and 830.1.℃. The endothermic reaction at 755 ℃ denotes expulsion of structural water, and the strong exothermal reaction at 830.1.℃ is related to the formation of olivine. Black inclusions finely dispersed in the mineral are identified, with X ray Gandolfi camera method, as magnetite.

关键词： bowenite serpentine serpentinite Booyo korea.

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Persistent anomalous flows over the subtropical western Pacific insummer

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Chinese Science Bulletin 1998年第8期43卷 672-675页

作者： ZHUANG Shiyu\+1.and JI Liren\+2.1. {1. Meteorological Centre, China Meteorological Administration, Beijing 1.0081. China 2. LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 1.0080, China national Meteorological Ccntre China Meteomlcgical Administration Beijing China LASG Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China

The distribution of global persistent anomalies shows that the subtropical western Pacific is a key region with high_frequency occurrence of persistent anomalies. Analyses of streamfunction anomalies, OLR anomalies etc. suggest that the convective heating related to Indian monsoon might be responsible for the development of WPA. The results of numerical experiment by two linear barotropic models support the observation.

关键词： persistent anomalies subtropical high Indian monsoon anomalous forcing.

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