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Identification of ten new Galactic HII regions

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Science china(Physics,Mechanics & Astronomy) 2010年第6期53卷 1144-1152页

作者： RUAN GuiPing 1,2 & SHI WeiBin 1,2 1 Shandong Provincial key laboratory of optical Astronomy and Solar-Terrestrial environment,School of Space Science and Physics,Shandong University at Weihai,Weihai 264209,china 2 key laboratory of optical Astronomy,national Astronomical Observatories,Chinese Academy of Sciences,beijing 100012,china Shandong Provincial key laboratory of optical Astronomy and Solar-Terrestrial environment School of Space Science and Physics Shandong University at Weihai Weihai China key laboratory of optical Astronomy National Astronomical Observatories Chinese Academy of Sciences Beijing China

We discovered ten large HII regions in the Sino-German λ6 cm polarization survey of the Galactic plane. They have been identified according to their flat spectral indexes and the high ratio between the 60 μm infrared emission and the λ6 cm emission. The integrated flux densities as well as the sizes of these sources are given at 4800 MHz. Cross-identifications are made with other major radio catalogs.

关键词： radio continuum general-methods observational-HII regions

Characterization and Corrosion Resistance of Laser Clad-ding Al_2O_3-13%TiO_2 Coating on AZ91D Magnesium Alloy

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稀有金属材料与工程 2011年第S4期40卷 221-225页

作者： Qian Jiangang1,Zhang Jiaxiang1,2,Xu Min1,2,Li Shuqing2 1School of Chemistry and environment,beijing University of Aeronautics and Astronautics,beijing 100191,china2national key laboratory for High Energy Density Beam Processing Technology,beijing 100024,china beijing Univ Aeronaut & Astronaut Sch Chem & Environm Beijing 100191 Peoples R China Natl key Lab High Energy Dens Beam Proc Technol Beijing 100024 Peoples R China

An Al2O3-13%TiO2 (AT-13) ceramic coating was prepared on an AZ91D Mg alloy substrate by the laser plasma hybrid spraying technique.X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to identify the phases and to study the morphology,*** adhesion strength and the metallographic structure of the coating were measured by using a tensile testing machine and an optical microscope (OM),*** microhardness was measured using a micro Vickers hardness *** results show that after laser remelting,metallurgic bonding occurred at the interface between the Al transition layer and the *** adhesion strength of the coating increased from 17.01 to 28.47 *** coating became *** metastable γ-Al2O3 phase in the coating without laser remelting transformed completely into the stable α-Al2O3 *** microhardness was improved from HV0.05210 to HV0.05425 and the time of salt spraying increased from 288 to 336h.

关键词： laser plasma hybrid spraying Mg alloy corrosion resistance

Estimation of suspended sediment concentration based on bio-optical mechanism and HJ-1 image in Chaohu Lake

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Science china Earth Sciences 2010年第S1期53卷 58-66页

作者： WANG Qiao1,2,JIN Xin2,LI YunMei2,WU ChuanQing1,Lü Heng2,WANG YanFei2,ZHANG Hong2,YIN Bin2 & ZHU Li1 1Satellite environment Center,Ministry of environmental Protection,beijing 100029,china 2key laboratory of Virtual Geographic environment of Education Ministry,Nanjing Normal University,Nanjing 210046,china Satellite environment Center Ministry of Environmental Protection Beijing China key laboratory of Virtual Geographic environment of Education Ministry Nanjing Normal University Nanjing China

Synchronization experiment was conducted in June,2009 to get Inherent optical Properties(IOP) of water component in Chaohu *** bio-optical mechanism was studied combined with multispectral data of environmental Satellite 1(CCD),and then inversion models of total suspended matter(TSM),inorganic suspended matter(ISM) and organic suspended matter(OSM) concentration were *** data indicated that:the absorption ratio of suspended particulate matter and CDOM to total were almost no change from band 1 to band 2 with about 85% and 9%,*** ratio of pure water to total increased from 0.4% to 5.6%.Water reflectance in these two bands were influenced by absorption of three kinds of components:algae particles absorption surpassed non-algal particles in band 3,and so played an important role in total absorption with about 35.7%;the proportion of pure water absorption and particles matter backscattering both were 99% in band 4,so these two components decided the main inherent optical properties in band *** models of TSM and ISM concentration inversion based on band combination(band 3 + band 4)/(band 1 + band 2) were built,while OSM concentration was estimated by band 4/(band 1 + band 2) *** by image data,RE of TSM concentration between modeled and measured was 33.4%,and RMSE was 18.68 mg/*** of ISM and OSM concentration were 39.9% and 35.2% *** inversion was more accurate when satellite-ground data were just in the same *** this situation,RE of ISM concentration dropped to 25.4%,and that of TSM and OSM reduced to 26.5% and 26.8% as well.

关键词： HJ-1 Satellite bio-optical property Chaohu Lake suspended matter

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基于XML仿真资源库的研究与实现

系统仿真学报 2009年第22期21卷 7135-7138,7142页

作者：柳寒冰宿红毅柴旭东张晗战守义北京理工大学计算机科学技术学院北京100081 北京仿真中心北京100854 导弹控制系统仿真国防科技重点实验室北京100854

建模与仿真资源库(MSRR)为仿真应用提供底层数据服务,对于仿真的正常运行至关重要。随着计算机与军事应用的发展,仿真资源呈现出分布、异构的特点,现有的MSRR很难实现对这些资源的最大化重用、互操作以及动态集成、分配等的统一管理。... 详细信息

建模与仿真资源库(MSRR)为仿真应用提供底层数据服务,对于仿真的正常运行至关重要。随着计算机与军事应用的发展,仿真资源呈现出分布、异构的特点,现有的MSRR很难实现对这些资源的最大化重用、互操作以及动态集成、分配等的统一管理。通过对分布式作战仿真及其仿真资源特点的研究,总结了分布式作战仿真中MSRR的特点和需求,提出了以XML为核心、开放可扩展的MSRR体系结构。并以分布式作战仿真环境中的自然资源为例,对基于XML的资源标准化描述、集成以及交互的实现做了重点研究。该系统现已应用于某分布式空防对抗仿真环境,实际应用表明该系统满足了对分布式作战仿真应用中资源重用、互操作等的需求,具有灵活的伸缩性和良好的访问效率。

关键词：分布作战仿真建模与仿真资源库仿真与建模资源管理 XML(eXtensible Markup Language)

On the major proposals for carbon emission reduction and some related issues

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Science china Earth Sciences 2010年第12期53卷 159-172页

作者： DING ZhongLi1,DUAN XiaoNan2,GE QuanSheng3 & ZHANG ZhiQiang4 1 CAS key Lab of Cenozoic Geology and environment,Institute of Geology and Geophysics,Chinese Academy of Sciences,beijing 100029,china 2 The General Office of Chinese Academy of Sciences,beijing 100864,china 3 Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,beijing 100101,china 4 The Lanzhou Branch of the national Science Library,Scientific Information Center for Resources and environment of CAS,Lanzhou 730000,china CAS key Lab of Cenozoic Geology and environment Institute of Geology and Geophysics Chinese Academy of Sciences Beijing China The General Office of Chinese Academy of Sciences Beijing China Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China The Lanzhou Branch of the national Science Library Scientific Information Center for Resources and Environment of CAS Lanzhou China

We evaluated and ran simulations for seven proposals for the reduction of global CO2 emissions (e.g.,those of the Intergovernmental Panel on Climate Change (IPCC),United Nations Development Program,and Organization for Economic Cooperation and Development).All the proposals ignored the fact that the cumulative CO2 emissions per capita for developed countries were 7.54 times those for developing countries in the historical period of *** proposals further deliberately allocate 2006-2050 emission quotas to developed countries that are 2.3-6.7 times those to developing *** will seriously violate the development rights of developing *** paper clearly states that proposals such as that of the IPCC are not suitable references for future international climate change negotiations as they violate the fundamentals of fairness and equity in international relationships and the UNFCCC principle of "common but differentiated responsibilities".Comparing estimates of emissions in china in the scenario of rapid development with low-CO2-emission technology in the period 2006-2050 with estimates for other countries and groups,we find that china can logically and morally argue for equivalent emission rights even in the case of the strict CO2 concentration target of 450-470 ppmv.

关键词： CO2 emission reduction cumulative CO2 emission per capita emission rights

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Design and implementation of an optical simulation environment for bioluminescent tomography studies

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Progress in Natural Science:Materials International 2007年第1期17卷 87-94页

作者： LI Hui, TIAN Jie, LUO Jie, LU Yujie, CONG Wenxiang and WANG Ge ( Department of Education Technology, Capital Normal University, beijing 100037, china key laboratory of Complex Systems and Intelligence Science, Institute of Automation, Chinese Academy of Sciences, beijing 100080, china Bioluminescent Tomography laboratory, Department of Radiology & Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa 52242, USA) Department of Education Technology Capital Normal University Beijing 100037 China key laboratory of Complex Systems and Intelligence Science Institute of Automation Chinese Academy of Sciences Beijing 100080 China Bioluminescent Tomography laboratory Department of Radiology & Department of Biomedical Engineering University of Iowa Iowa City Iowa 52242 USA

As a challenging task for bioluminescent tomography simulation, a virtual optical environment is needed to solve the forward problem accurately, that is, to achieve a high precision for bioluminescent signal synthesis on the external body surface of a small animal. The molecular optical simulation environment named MOSE is implemented using the C++ programming language and the OpenGL techniques, including a user-friendly interface with interactive tools facilitating users' operations. The accuracy of the virtual optical environment is verified by error analysis of mesh simplification and comparison between MOSE results and experimental data. This virtual optical environment is accurate, flexible and efficient to simulate the photon propagation in complicated tissues, which has a great potential to become a software platform for bioluminescent tomography studies and other molecular imaging applications.

关键词： molecular imaging biolumlnescent tomography photon propagation Monte Carlo method.

The application of hyperspectral remote sensing to coast environment investigation

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Acta Oceanologica Sinica 2009年第2期28卷 1-13页

作者： ZHANG Liang ZHANG Bin CHEN Zhengchao ZHENG Lanfen TONG Qingxi State key laboratory of Remote Sensing Science Institute of Remote Sensing Applications Chinese Academy of Science Beijing 100101 China Naval Institute of Hydrographic Surveying and Charting Tianjin 300061 China Center for Earth Observation and Digital Earth Chinese Academy of Science Beijing 100190 China

Requirements for monitoring the coastal zone environment are first summarized. Then the appli- cation of hyperspectral remote sensing to coast environment investigation is introduced, such as the classification of coast beaches and bottom matter, target recognition, mine detection, oil spill identification and ocean color remote sensing. Finally, what is needed to follow on in application of hyperspectral remote sensing to coast environment is recommended.

关键词： hyperspectral remote sensing coastal zone ocean color remote sensing

Monitoring Glacier and Supra-glacier Lakes from Space in Mt. Qomolangma Region of the Himalayas on the Tibetan Plateau in china

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Journal of Mountain Science 2009年第3期6卷 211-220页

作者： YE Qinghua ZHONG Zhenwei KANG Shichang Alfred Stein WEI Qiufang LIU Jingshi key laboratory of Tibetan environment Changes and Land Surface Processes Institute of Tibetan Plateau Research Chinese Academy of Sciences (CAS) Beijing 100085 China State key laboratory of Remote Sensing Science Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University Beijing 100101 China International Institutefor Geo-Information Science and Earth Observation (ITC) PO Box 67500 AA Enschede The Netherlands

Because of the large number and remoteness, satellite data, including microwave data and optical imagery, have commonly been used in alpine glaciers surveys. Using remote sensing and Geographical Information System （GIS） techniques, the paper presents the results of a multitemporal satellite glacier extent mapping and glacier changes by glacier sizes in the Mt. Qomolangma region at the northern slopes of the middle Himalayas over the Tibetan Plateau. Glaciers in this region have both retreated and advanced in the past 35 years, with retreat dominating. The glacier retreat area was 3.23 km2 （or o.75 km^2 yr^-1 during 1974 and 1976, 8.68 km^2 （or 0.36 km^2 yr^-1 during 1976 and 1992, 1.44 km^2 （or 0.12 km^2 yr^-1） during 1992-2ooo. 1.14 km^2 （or 0.22 km^2 yr^-1 during 2000-2003, and 0.52 km^2 （or 0.07 km^2 yr^-1 during 2003-2008, respectively. While supra-glacier lakes on the debris-terminus of the Rongbuk Glacier were enlarged dramatically at the same time, from 0.05 km^2 in 1974 increased to 0.71 km^2 in 2008, which was more than 13 times larger in the last 35 years. In addition, glacier changes also showed spatial differences, for example, glacier retreat rate was the fastest at glacier termini between 5400 and 5700 m a.s.l than at other elevations. The result also shows that glaciers in the middle Himalayas retreat almost at a same pace with those in the western Himalayas.

关键词： Glacier lake Remote Sensing Mr. Qomolangma region Himalayas Tibetan Plateau

The roles of heterogeneous chemical processes in the formation of an air pollution complex and gray haze

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Science china Chemistry 2011年第1期54卷 145-153页

作者： ZHU Tong,SHANG Jing & ZHAO DeFeng State key Joint laboratory of environmental Simulation and Pollution Control College of environmental Sciences and Engineering,Peking University,beijing 100871,china State key Joint laboratory of environmental Simulation and Pollution Control College of environmental Sciences and Engineering Peking University Beijing China

Urban and regional air pollutions are characterized by high concentrations of secondary pollutants such as photo-oxidants （mainly ozone） and fine particulate matter, which are formed through chemical reactions of the primary pollutants emitted from various sources. The accumulation of these pollutants under stagnant meteorological conditions results in the formation of gray haze, reducing visibility and causing major impacts on human health and climate. In an air pollution complex, the co- existence of high concentrations of primary and secondary gaseous and particulate pollutants provides a large amount of reac- tants for heterogeneous reactions on the surface of fine particles; these reactions change the oxidizing capacity of the atmos- phere, as well as chemical compositions along with the physicochemical and optical properties of particulate matter, thereby accelerating formation of the air pollution complex and gray haze. Using in situ technologies, such as diffuse reflectance infra- red Fourier-transform spectroscopy and single-particle Raman spectroscopy, we systematically investigated the reaction kinet- ics and mechanisms of gaseous pollutants （i.e., NO2, SO2, 03, and formaldehyde） on the surfaces of the major components of atmospheric particles such as CaCO3, kaolinite, montmorillonite, NaC1, sea salt, A1203, and Tit2. We found that the main re- action products were sulfate, nitrate, or formate, which can change the hygroscopicity and light extinction parameters of those particles significantly. By analyzing the reaction kinetics of these heterogeneous reactions, we identified synergetic mechanisms of the three ternary reaction systems, ,i.e., NOE-particles-H2O, SO2-particles-O3, and organics/SO2-particles-UV illumination. These synergetic mechanisms can provide experimental and theoretical bases for understanding the feedback mechanisms and nonlinear processes in the formation of an air pollution complex and gray haze.

关键词： fine particles secondary pollutants oxidizing capacity ternary reaction nonlinear processes