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Comparison of eastern paleo-Tethyan ophiolites and its geodynamic significance--Evidence from Dur'ngoi ophiolite

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Science China Earth Sciences 2004年第4期47卷 378-384页

作者： CHEN Liang1,2, SUN Yong1,2, PEI Xianzhi2, Feng Tao2 & Zhang Guowei2 1. Open Laboratory of Continental Dynamics, Ministry of Education, Northwest University, Xi抋n 710069, China 2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China Open Laboratory of Continental Dynamics Ministry of Education Northwest University Xi’an 710069 China Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China

Nd-Pb isotopic geochemistry of metabasalt from Dur抧goi ophiolite, Qinghai Prov-ince, NW China reveals the presence of DMM mixing with EMII components in its upper mantle source, which is comparable with present Indian MORB. Comparisons indicate that the geo-chemistry, chronology and source characteristics of Dur抧goi ophiolite coincide with Pa-leo-tethyan ophiolites from 揝anjiang?area. Together with evidences from regional geology in adjacent areas, this study proves that independent paleo-tethyan basins evolved contemporarily, the dynamics of which is attributed to the interaction of mantle plume with over-riding lithosphere.

关键词： ophiolite, Paleo-Tethys, DUPAL anomaly, Indosinian movement.

Evaluation for Adhesion Strength of Coating and Substrateby Burying Beforehand Specimen

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Journal of Wuhan University of Technology(Materials Science) 2003年第1期18卷 31-32,36页

作者：廖义德 WuhanInstituteofChemicalTechnology

Adhesion strength is an important target in evaluating the quality of coating *** traditional way of adhesion strength test is bonding pull off method for thick layers and scratch test for thin *** drawbacks of these two methods are discussed in this paper,and an evaluating method for adhesion strength of coating by burying beforehand specimen is *** adhesion strength of samples is measured with two *** dispersity of testing data is lower than that in the ASTM C663 79 Standard.

关键词： coating adhesion strength specimen measure

Variations of plant life form diversity along the Northeast China Transect and its direct gradient analysis

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Journal of Environmental Sciences 2002年第4期14卷 547-551页

作者： WANGRen-zhong GAOQiong2 TANGHai-ping： LaboratoryofQuantitativevegetationEcology InstituteofBotanyChineseAcademyofSciencesBeijing100093China InstituteofResourcesScience BeijingNormalUniversityBeijing100875China

Plant life form diversity and its direct gradient analysis on a larger scale climate change gradient were tested, based on the data from Northeast China Transect platform. The results showed that the species numbers, life form richness and life form diversity were relative higher at the eastern forests and the ecotone between typical vegetation, while those on the meadow grasslands and typical steppes were lower. Although plant life forms can reflect the climate variations, life form diversity is not consistent with the major global gradient along the NECT.

关键词： northeast China transect plant life form diversity ecotone gradient analysis

The characteristic spectral lines of target atoms in the impact of^(40)Ar^(q+)ions on metal surfaces

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Science China(Physics,Mechanics & Astronomy) 2004年第6期47卷 729-736页

作者： ZHANG Xiao’an1,2,ZHAO Yongtao1,2,LI Fuli1,YANG Zhihu2,XIAO Guoqing2 & ZHAN Wenlong2 1.Department of Applied Physics,Xi’an Jiaotong University,Xi’an 710049,China 2.Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China Department of Applied Physics Xi'an Jiaotong University Xi'an 710049 China Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 China

We report the measured results of the 200 nm—1000 nm characteristic spectral lines of target atoms when highly charged ions40Ar q+(6≤q≤14) with the same kinetic energy and40Ar6+ with different kinetic energies are incident upon Al, Ti, Ni, Ta and Au surfaces, respectively. The results for129Xe6+,129Xe10+ and129Xe15+ with the same kinetic energy (150 keV) incident upon a Ta surface are also reported. These results show that when the projectile and target are properly selected (40Ar12+ impinges on Al,129Xe6+ impinges on Ta), the spectral intensity of characteristic spectral lines of the target atom is effectively enhanced, and is not strongly dependent on the kinetic energy of the incident ions.

关键词： highly charged ion, hollow atom, characteristic spectrum, spectral intensity.

Virtual ChuanDian--A parallel numerical modeling of Sichuan-Yunnan regional strong earthquake activities: Model construction and parallel simulation

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Science China Earth Sciences 2009年第10期52卷 1585-1598页

作者： ZHANG Huai1, WU ZhongLiang1,2, ZHANG DongNing2, LIU Jie2, WANG Hui2, YAN ZhenZhen1,2 & SHI YaoLin11 Laboratory of Computational Geodynamics, Graduate University of Chinese Academy of Sciences, Beijing 100049, China 2 Institute of Geophysics, Chinese Earthquake Administration, Beijing 100081, China 1. Laboratory of Computational Geodynamics Graduate University of Chinese Academy of Sciences Beijing 100049 China 2. Institute of Geophysics Chinese Earthquake Administration Beijing 100081 China

Reasonable use of mathematical modeling and numerical simulation of regional earthquake activities has attracted more and more attentions in realistic seismicity studies in recent years. The inherent nature of their attendant multi-scale properties, from either the temporal or the spatial direction, necessitates the use of the cutting-edge massive parallel data processing techniques. Our study here is focused on the model construction and numerical simulation of the regional stress evolution after large earthquake sequences along the fault zones in Sichuan and Yunnan areas, using large-scale parallel finite element approximations with tens of millions of unstructured meshes on the distributed systems. The objective of our study is to provide a state-of-the-art model and a large-scale numerical simulation platform, on which estimation of the risk of large earthquake triggering sequences can be carried out in a middle or long-term time scale with realistic data and constrains inputted from field observation and geological survey.

关键词： Sichuan-Yunan area seismic processing parallel simulation initial stress field

Overview on the Development of Nanostructured Thermal Barrier Coatings

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Journal of Materials Science & Technology 2007年第4期23卷 449-456页

作者： Xianliang JIANG2 Chunbo LIU Feng LIN School of Materials Science and Engineering Central South University Changsha 410083 China General Research Institute of Mining and Metallurgy Beijing 100044 China

Thermal barrier coatings （TBCs） have successfully been used in gas turbine engines for increasing operation temperature and improving engine efficiency. Over the past thirty years, a variety of TBC materials and TBC deposition techniques have been developed. Recently, nanostructured TBCs emerge with the potential of commercial applications in various industries. In this paper, TBC materials and TBC deposition techniques such as air plasma spray （APS）, electron beam physical vapor deposition （EB-PVD）, laser assisted chemical vapor deposition （LACVD） are briefly reviewed. Nanostructured 7-8 wt pct yttria stabilized zirconia （7-8YSZ）TBC by air plasma spraying of powder and new TBC with novel structure deposited by solution precursor plasma spray （SPPS） are compared. Plasma spray conditions, coating forming mechanisms, microstructures,phase compositions, thermal conductivities, and thermal cycling lives of the APS nanostructured TBC and the SPPS nanostructured TBC are discussed. Research opportunities and challenges of nanostructured TBCs deposited by air plasma spray are prospected.

关键词： Zirconia Thermal barrier coating Plasma spray Nanostructure

“融青春聚能量向未来”两岸青年发展交流营成功举办

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两岸关系 2024年第6期 38-39页

作者： 1.海峡两岸交流中心 2.浙江省台办海峡两岸交流中心浙江省台办

4月15日至22日,海峡两岸交流中心联合浙江省台办成功举办“融青春聚能量向未来”两岸青年发展交流营浙江行活动,来自台北、新北、金门、苗栗的40余位两岸台青、网红博主积极参与,两岸青年在活动中互学互鉴、交流交心。注重沉浸式体验,... 详细信息

4月15日至22日,海峡两岸交流中心联合浙江省台办成功举办“融青春聚能量向未来”两岸青年发展交流营浙江行活动,来自台北、新北、金门、苗栗的40余位两岸台青、网红博主积极参与,两岸青年在活动中互学互鉴、交流交心。注重沉浸式体验,感受中华文化魅力,唤起共有文化基因参访浙江共同富裕示范村,看到花园村先进的智慧系统、邻里互助信息平台、矛盾纠纷解决方案。

关键词：两岸青年信息平台海峡两岸交流花园村沉浸式体验矛盾纠纷互学示范村

Adsorption and Desorption of Thiophene Vapor on NaY/NiY Zeolites

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China Petroleum Processing & Petrochemical Technology 2010年第2期12卷 45-50页

作者： Liu Daosheng~(1,2) Song Lijuan~2 Ju Xiufang~2 Duan Linhai~2 Sun Zhaolin~(1,2) (1.College of Chemistry & Chemical Engineering,China University of Petroleum(East China),Dongying 257061 2.Liaoning Key Laboratory of Petrochemical Engineering,Liaoning Shihua University) China Univ Petr E China Coll Chem & Chem Engn Dongying 257061 Peoples R China Liaoning Shihua Univ Liaoning Key Lab Petrochem Engn Liaoning Peoples R China

FT-IR spectrometry, TPD and adsorption isotherms of thiophene on NaY/NiY zeolites were carried out and the diffusion coefficient was obtained by means of its real-time dynamic curves. The loading of thiophene adsorbed on the NaY zeolite decreased with an increasing temperature, which was ascribed to the patterns of physical adsorption. Both physical and chemical adsorption phenomena were detected on the NiY zeolite, with the 0 complexation and S-M interaction existing during the chemical adsorption. The loading of thiophene adsorbed on the NiY zeolite at 302 K and 335 K was equal, but it decreased at 373 K. The diffusion coefficient of thiophene on the NaY zeolite decreased when the loading increased to more than 0.02 mmol/g, and on the contrary that of thiophene on the NiY zeolite did not change obviously with the loading adsorbed.

关键词： adsorption diffusion coefficient temperature-programmed desorption (TPD)

Pattern phenomena in an rf discharge dusty plasma system

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Science China(Physics,Mechanics & Astronomy) 2006年第5期49卷 588-596页

作者： HUANG Feng1,2, YE Maofu2 & WANG Long2 1. College of Science, China Agricultural University, Beijing 100083, China 2. Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China 1. College of Science China Agricultural University Beijing 100083 China 2. Institute of Physics Chinese Academy of Sciences Beijing 100080 China

Various dust patterns are observed in an rf discharge dusty plasma system. According to the dust growth process from small to large in size, the formation of different dust patterns can be divided into two stages: the small-particle stage (or dust cloud stage), and the large-particle stage (or dust crystal stage). The evolution relations between different dust patterns with gas pressure changing are investigated. Dust voids, dust acoustic waves and strong turbulence modes are presented at the small-particle stage. The self-organized dust lattices and dust clusters are investigated at the large-particle stage. The static structure of a dust lattice is characterized by means of the pair correlation function. Dust clusters formed by particles with different numbers and the regular evolution of the clusters with gas pressure are also investigated. The packing sequences of dust clusters are verified through two-dimensional confined molecular dynamics simulations.

关键词： dusty plasma dust patterns