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Manufacture of Raney Ni catalyst with metastable Ni_2.l_3.by high energy milling

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中国有色金属学会会刊：英文版 1999年第3期9卷 562-565页

作者： Teng Ronghou(滕荣厚) 1, Sun Shijie(孙世杰) 1, Liu Silin(刘思林) 1, Liu Xuequan(柳学全) 1, Ma Ruzhang(马如璋) 2.Liu Tao(刘涛) 3.1. Functional Materials institute, Central Iron & Steel Research institute, Beijing 100081, P.R.China 2. Depar Cent Iron & Steel Res Inst Funct Mat Inst Beijing 100081 Peoples R China Univ Sci & Technol Beijing Dept Mat Phys Beijing 100083 Peoples R China Chinese Acad Sci Inst High Energy Phys Beijing Synchrotron Radiat Facil Beijing 100039 Peoples R China

The Ni Al alloy containing Cr, Fe additives were prepared as Raney Ni catalyst by high energy milling. The size and surface state of Ni Al alloy powder were studied by particle size analyzer and sanning electron microscopy, the structure was analyzed by XRD and Mssbauer methods. The results showed that after a high energy milling (HEM), the Ni Al alloy transforms to a nano scale NiAl structure with rich Al. By annealing the alloy, a metastable Ni 2.l {2.phase can be obtained.

关键词： Raney nickel catalyst nano crystal high energy milling

Alkaline diagenesis and its genetic mechanism in the Triassic coal measure strata in the Western Sichuan Foreland Basin,China

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Petroleum Science 2009年第4期6卷 354-365页

作者： Jiang Zaixing Qiu Longwei Chen Guiju College of energy China University of GeosciencesBeijing 100083China College of Earth Resources and Information China University of PetroleumShandong 257062China Sinopec Exploration and Production Research institute Beijing 100083China

The reservoir of the upper Triassic Xujiahe Formation (T3.) in the Western Sichuan Foreland Basin is a set of terrigenous clastic rocks in an environment of coal measure sediments. Diagenesis greatly controls the physical properties of the reservoir through different responses of minerals to acidic and alkaline diagenetic environment. The dissolution of unstable components such as feldspar, rock fragments, carbonate cement, and clay minerals is the major source of secondary pores under acidic diagenesis, while the dissolution of quartz increases the reservoir space in the fault-fold zone of Longmen Mountain and Leikoupo paleo-hills. The dissolution of quartz is a result of cross-formation flow of fluid in the Himalaya epoch and the invasion of alkaline formation water from the Triassic Leikoupo and Jialingjiang formations through fault and fracture systems. In the vertical succession, acidic dissolution occurs at a shallow depth of less than 2.180 m, and alkaline dissolution occurs at a greater depth of more than 2.2.0 m. The reservoir space is formed by the influence of both acidic and alkaline dissolution in the depth interval of 2.180–2.2.0 m.

关键词： Sichuan Basin upper Triassic alkaline diagenesis porosity genetic mechanism

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钢筋网水泥砂浆加固旧砖墙的试验研究

土木工程学报 2009年第4期42卷 77-84页

作者：许清风江欢成朱雷杜刚上海市建筑科学研究院上海200032 上海市工程结构新技术重点实验室上海200032 上海江欢成建筑设计有限公司上海200041

经过长时间使用后,砖砌体易发生由于砖风化、砂浆粉化、墙体裂缝和底层受潮等导致的砖砌体承载力下降、安全性降低,需采取合理的维修加固措施。已有研究表明,钢筋网水泥砂浆是一种砖墙抗震加固的有效方法。通过8片旧墙体的对比试验,研... 详细信息

经过长时间使用后,砖砌体易发生由于砖风化、砂浆粉化、墙体裂缝和底层受潮等导致的砖砌体承载力下降、安全性降低,需采取合理的维修加固措施。已有研究表明,钢筋网水泥砂浆是一种砖墙抗震加固的有效方法。通过8片旧墙体的对比试验,研究钢筋网水泥砂浆加固旧砖墙受压承载力和水平承载力的效果,研究参数包括水泥砂浆层数、掏缝置换等。研究结果表明,采用双侧钢筋网水泥砂浆加固后旧砖墙的受压承载力提高12.%～13.%,而仅采用单侧钢筋网水泥砂浆加固旧砖墙的受压承载力没有明显改善。采用双侧钢筋网水泥砂浆加固后旧砖墙的水平承载力大幅提高,提高幅度达2.0%～612.,同时加固旧墙体的耗能能力明显提高。对原灰缝进行3.mm深掏缝置换可对砖墙的加固效果略有提高。

关键词：旧砖墙钢筋网水泥砂浆加固承载力

Investigation into the rotational bands of ^(185)Pt with the particle-rotor model

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Science China(Physics,Mechanics & Astronomy) 2011年第S1期54卷 114-118页

作者： LI GuangShun1,2. ZHOU XiaoHong1,2. ZHANG ShuangQuan3. ZHANG YuHu1 & MENG Jie3.1 {2. of Modern Physics, Chinese Academy of Sciences, Lanzhou 73.000, China 2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China 3.School of Physics and SK Laboratory of Nuclear Physics & Technology, Peking University, Beijing 100871, China 1. institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 China 2. Graduate University of Chinese Academy of Sciences Beijing 100049 China 3. School of Physics and SK Laboratory of Nuclear Physics & Technology Peking University Beijing 100871 China

Theoretical calculations have been performed for the ν9/2.[62.](i13.2. and ν7/2.[503.(f7/2. bands of 185Pt in the framework of particle-rotor model. The band properties of signature splitting and configuration mixing have been analyzed. The level {2. and signature splitting before the band crossing can be well interpreted by introducing triaxiality. The positive-parity yrast band is pro posed to be dominated by the ν9/2.[62.](i13.2. component, while the negative-parity band shows strong mixing of ν7/2.[503.(f7/2. and ν9/2.[505](h9/2. configurations.

关键词： High-spin states particle-rotor model signature splitting configuration mixing

Correlation of Behavior Changes and BOLD Signal in Alzheimer-like Rat Model

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Acta Biochimica et Biophysica Sinica 2004年第12期36卷 803-810页

作者： Zheng-Hui HU#, Xiao-Chuan WANG1#, Li-Yun LI3. Mai-Li LIU3. Rong LIU1, Zhiqun LING1, Qing TIAN1, Xiao-Wei TANG, Yi-Gen WU2., and Jian-Zhi WANG1* Department of Physics and Bio-X disciplinary Laboratory, Zhejiang University, Hangzhou 3.002.,China 1 Department of Pathophysiology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 43.03., China 2.5} of High energy Physics and Key Laboratory of Nuclear Analysis Techniques, Chinese Academy of Sciences, P.O. Box 918, Beijing 10003., China 3.uhan institute of Physics and Mathematics, State Key Laboratory of Magnetic Resonance and {3. and Molecular Physics, Chinese Academy of Sciences, Wuhan 43.071, China Department of Physics and Bio-X disciplinary Laboratory Zhejiang UniversityHangzhou 310027China Department of Pathophysiology Tongji Medical College Huazhong University of Science and TechnologyWuhan 430030 China Wuhan institute of Physics and Mathematics State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Chinese Academy of SciencesWuhan 430071 China institute of High energy Physics and Key Laboratory of Nuclear Analysis Techniques Chinese Academy of SciencesP.O. Box 918 Beijing 100039 China

To explore a potential means for the early diagnosis of Alzheimer disease, we studied the relationship of resting T2. signal and tau hyperphosphorylation/spatial memory deficit. The rat model with tau hyperphosphorylation and spatial memory deficit was established by bilateral hippocampi injection of isoproterenol (IP). Then, the correlative alteration between resting T2. signal and spatial memory retention was assessed with blood oxygenation level dependent (BOLD) functional magnetic resonance imaging (fMRI) study and Morris Water Maze test, and Western blot was employed to confirm tau hyperphosphorylation. The analysis showed following results. (1) Tau phosphorylation at Ser3.6/Ser404 and Ser199/Ser2.2.was signifi- cantly increased in IP-injected rats as detected by PHF-1 and tau-1, respectively. (2. An AD-like spatial memory retention disturbance was induced at 2. h after isoproterenol injection. (3. A sensitivity threshold of resting T2. signal intensity, which separated the IP-treated rats from vehicle control, was obtained by applying linear regression analysis, and an estimated sensitivity statistical threshold was at 3..62. These results suggest that resting T2. signal may serve as a noninvasive quantitative marker in predicting AD-like spatial memory deficits and tau hyperphosphorylation.

关键词： Alzheimer disease (AD) functional magnetic resonance imaging (fMRI) isoproterenol (IP) Morris Water Maze diagnosis

ADSORPTION BEHAVIOUR OF Mn(Ⅱ) AND Zn(Ⅱ) ON ATTAPULGITE WITH FAAS METHOD

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Chinese Journal of Reactive Polymers 2008年第Z1期 36-41页

作者： LI Bingbing1,3.LI Chunxiang2.LIU Aiqin2.XIAO Bo1,3.1. College of Environmental Science and Technology, Huazhong University of Science and Technology, Wuhan 43.074, China 2. School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang 2.2.13. China 3. Department of Biological Engineering of Pingdingshan institute of Technology, Pingdingshan 467000, China

Active attapulbgite as adsorptive reagent, the adsorptive behavior of Mn(II) and Zn(II) was studied with Flame atomic absorption spectroscopy (FAAS) method. The mainly factors of influencing the adsorption and desorption of Mn(II) and Zn(II) were discussed. The interference of coexisting ions was investigated, and the actual sample determination from adzuki beans, mung beans and phosphating waste water was conducted with good result.

关键词： Attapulgit FAAS method Determination Mn(II) Zn(II) Foodstuff.

The State-of-Art and Development Trends of HSLA Steels in China

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Journal of Iron and Steel Research International 2011年第S1期18卷 1-13页

作者： WENG Yu-qing 1,YANG Cai-fu 2.SHANG Cheng-jia 3.(1.The Chinese Society for Metals,Beijing,PR China 2.Centre Iron and Steel Research institute,Beijing,PR China 3.University of Science and Technology Beijing,Beijing,PR China) Chinese Soc Met Beijing Peoples R China Ctr Iron & Steel Res Inst Beijing Peoples R China Univ Sci & Technol Beijing Beijing 100083 Peoples R China

During the last decade,the adjustment of product segments always is a very important task of iron industry,and upgrading of steel products has been impelled actively by Chinese iron and steel *** rapidly increasing of iron & steel production,a series of research achievements have been made in the technology area of high strengthtoughness steel,and also have been applied successfully in the actual production,*** technology of fine grain and ultra-fine grain steels,the technology for the control of microalloying ***,It is an important strategic goal of "Twelfth Five-year Plan" for Chinese iron and steel industry that the adjustment of steel product segments and meeting the requirements for upgrading of domestic and oversea equipment manufactory *** HSLA steel with better performance,instead of plain steel,could save steel consumption largely,and also release pressures from resource,energy and *** doubt,it is the only way to realize the sustained development of Chinese iron and steel industry by popularizing the application of HSLA steels vigorously.

关键词： HSLA steel microalloying technology Chinese iron and steel industry

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垃圾焚烧飞灰理化特性研究

燃料化学学报 2004年第2期32卷 175-179页

作者：李润东聂永丰李爱民王雷严建华岑可法沈阳航空工业学院清洁能源与环境工程研究所辽宁沈阳110034 清华大学环境科学与工程系北京100084 浙江大学热能工程研究所浙江杭州310027

应用能谱分析、灰熔点炉、XRD、压汞仪等仪器手段对国内外8种垃圾焚烧飞灰的成分、熔点、晶相结构、颗粒特性等物理化学性质进行了系统研究。研究表明,飞灰成分因为受原料、炉型、取样位置等因素影响而差异很大。由于飞灰的成分差异导... 详细信息

应用能谱分析、灰熔点炉、XRD、压汞仪等仪器手段对国内外8种垃圾焚烧飞灰的成分、熔点、晶相结构、颗粒特性等物理化学性质进行了系统研究。研究表明,飞灰成分因为受原料、炉型、取样位置等因素影响而差异很大。由于飞灰的成分差异导致垃圾焚烧飞灰比煤灰更易于熔融,对熔融处理有利,这主要归因于飞灰中SiO2.量以及SiO2.Al2.3.异,熔点与SiO2.量存在正比关系;添加CaO实现助熔是有条件的,不同飞灰由于焚烧条件和飞灰成分不同导致晶相组成有一定差异;飞灰内部孔径主要分布于0.3.m～1.5μm范围内,飞灰的比表面积为2..5m2.g。

关键词：垃圾焚烧飞灰理化特性

Narrow line Seyfert 1 galaxies: where are the broad line regions?

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Science China(Physics,Mechanics & Astronomy) 2010年第12期53卷 2307-2311,2339-2343页

作者： MAO WeiMing 1,2.3., HU Chen 2., WANG JianMin 2., BIAN WeiHao 4 , ZHANG Shu 2.& ZHAO Gang 1 1 Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012. China 2.Key Laboratory for Particle Astrophysics, institute of High {2. Physics, Chinese Academy of Sciences, Beijing 100049, China 3.Graduate University of the Chinese Academy of Sciences, Beijing 100049, China 4 Department of Physics, Nanjing Normal University, Nanjing 2.0011, China 1. Key Laboratory of Optical Astronomy National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China2. Key Laboratory for Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China3. Graduate University of the Chinese Academy of Sciences Beijing 100049 China4. Department of Physics Nanjing Normal University Nanjing 210011 China

A sample consisting of 2.1 narrow line Seyfert 1 galaxies (NLS1s) with high quality spectra from the Sloan Digital Sky Survey (SDSS) is selected to explore where broad line regions are in these objects. We find that the Hβ profile can be fitted well by three (narrow, intermediate and broad) Gaussian components, and the FWHM ratios of the broad to the intermediate components hold a constant of 3.0 roughly for the entire sample. If the broad components originate from the region scaled by the well-determined Hβ reverberation mapping relation, we find that the intermediate components originate from the inner edge of the torus, which is scaled by dust K-band reverberation. We find that the IC and the BC are strongly linked dynamically, but the relation of their covering factors is much more relaxed, implying that both regions are clumpy.

关键词： black hole physics galaxies: evolution quasars: general