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The Stability of Triaxial Superdeformed Shapes in Odd-Odd 160～168Lu Isotopes

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The Stability of Triaxial Superdeformed Shapes in Odd-Odd 16...

Microstructure and Tribological Performances of 25NiCr-Cr_3._2 Coatings Prepared by Laser-Hybrid Plasma Spraying Technology

第十三届全国核结构研讨会暨第九次全国“核结构与量子力学”专题讨论会

作者： Tu Ya~(1 1)) CHEN Yong-Shou~(2,3.2)) YU Shao-Ying~(4.) SHEN Cai-Wan~(4.) 1(College of Physics science and Technology,ShenYang Normal university,ShenYang 11003.,china) 2(china Institute of Atomic Energy,P.O.Box 275(18),{3. 1024.3.china) 3.Institute of Theoretical Physics,Chinese Academy of sciences,{3. 100080,china) 4.school of Science,Huzhou Teachers College,Huzhou 3.3.00,china)

The trixial superdeformed（TSD） rotational states in the odd-odd Lu isotopes are investigated by performing the configuration dependent three dimensional total routhian surface（TRS） calculations with the explicit treatment of the deformation driving effects of the high-j intruder *** fifty low lying TSD bands have been found for these odd-odd nuclei within the excitation energy of 3.MeV above the ND yrast *** configurations of calculated TSD bands have been assigned based on the TRS calculations and the analysis of *** in the rotating *** calculated equihbrium elongation and triaxial deformations for these TSD bands are close toε = 0.4.andγ=20°,respectively,which are the typical quadrupole deformations for the wobbling bands observed in the neighboring odd-even Lu *** detailed comparisons for the calculated TRS and the deformation driving effects of the intruder high-j orbits made between odd-odd Lu nuclei and the odd-even Lu wobbling nuclei result in the similar stability of the TSD shapes,indicating the possibility to observe the wobbling excitation in the former ***,the wobbling mode as an unique signature for the triaxiality has not been discovered in the odd-odd Lu isotopes,but observed in the neighboring nuclei *** explain this puzzle based on the examination of the TSD band structure in odd-odd Lu isotopes,and found that the high level density at the second minimum in the TRS surface is the main reason for the difficulty to discover experimentally the wobbling bands in odd-odd Lu isotopes.

关键词： TRS theory triaxial superdeformation wobbling band

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稀有金属材料与工程 2011年第S4期40卷 194-198页

作者： Li Shuqing1,2,Li Qilian2,Gong Shuili2 1Department of Materials Processing Engineering,school of Materials Science & Engineering,Dalian university of Technology,Dalian 116085,china 2National Key Laboratory of Science and Technology on Power Beam Processes,{3. Aeronautical Manufacturing Technology Research Institute,{3. 100024.china Dalian Univ Technol Sch Mat Sci & Engn Dept Mat Proc Engn Dalian 116085 Peoples R China beijing Aeronaut Mfg Technol Res Inst Natl Key Lab Sci & Technol Power Beam Proc Beijing 100024 Peoples R China

The 25NiCr-Cr3.2 coatings are deposited on 3.CrMoAl substrate by air plasma spraying and laser-hybrid plasma spraying (LHPS) technologies,the coatings' microstructures and tribological performances were studied using an optical microscope,a scanning electron microscope,an X-ray diffraction,and an SRV high-temperature friction and wear *** the same time,the coating's bonding strength,microhardness are tested and *** test results indicate that the LHPS 25NiCr-Cr3.2 coating achieves metallurgy bonding and has higher bonding strength and higher microhardness than the air plasma spraying coating for the addition of the laser *** laser power makes the 25NiCr-Cr3.2 powders melt more sufficiently and has good fluidity and uniformity and therefore the LHPS 25NiCr-Cr3.2 coating's microstructures become more compact and there are no big cracks and cavities in *** the above changes,the LHPS 25NiCr-Cr3.2 coating has more excellent anti-high temperature abrasion performance and its friction coefficient is low and very stable,its main failure mechanism is a good combination of mild scratching and plastic deformation.

关键词： laser hybrid plasma spraying 25NiCr-Cr3.2 coating performance

The Optimization of Regional Logistics Development Based on the Economic Integration of beijing,Tianjin and Hebei

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The Optimization of Regional Logistics Development Based on ...

ECSTM study of adsorption of C60,C70,C86 and Y@C82 on Au（111）

第十一届全国经济管理院校工业技术学研究会

作者： Wenyi LI 1,Meiqing ZHANG 2 1 beijing Jiaotong university,school of Economics and Management,beijing,{4. 2 beijing Jiaotong university,school of Economics and Management,beijing,{4.

Logistics industry and regional economy influence each other in all stages of development,each link in the variety,quantity,progress,and input-output coordination,closely together,that there is significant coordination between *** paper will be based on system dynamics theory,and establish the system dynamic model of the logistics industry and regional economic coordination relations,then use system dynamics software to simulation,to explore regional logistics industry how can coordinate with economic development,which is in the context of the beijing-Tianjin-Hebei economic *** a waste of resources,nor the slow development of the logistics industry can’t keep up with the needs of the economy and hinder the healthy development of the economy,and put forward some reasonable and effective countermeasures and suggestions.

关键词： beijing-Tianjin-Hebei Regional Economic Regional Logistics System Dynamics

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Science china Chemistry 2010年第8期 1705-1710页

作者： SU GuiJin1,JIA ManKe1,GAN LiHua2 & SHI RuiFang1 1State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental sciences,Chinese Academy of sciences,beijing 100085,{3. 2{4. of Chemistry and Chemical Engineering,Southwest university,Chongqing 4.0715,{3.

The adsorption of a variety of fullerenes (C60,C70,C86,Y@C82) on Au(111) electrode surfaces was comprehensively investigated in 0.1 M HClO4.by electrochemical scanning tunneling microscopy (ECSTM).In the ordered C60's adlayer,C60 molecules formed either (2(1/3. × 2 3.(1/3.)or "in-phase" *** high resolution STM image shows that the C60 cage is not simply round but shows a bifurcated *** adsorption orientation of C60 on Au(111) is tentatively *** the ordered C70's adlayer,the perpendicular fullerene molecules are the main adsorption mode and form (2 3.(1/3. × 2 3.(1/3.) ***,for C86 and Y@C82,the ordered adlayer could not be obtained on Au(111) under the present *** differences may be due to the different molecular shapes and sizes,and the encapsulated metal atom which affects the lattice matches with the *** adsorption of fullerene molecules on Au(111) from disorder to order could be tuned simply by steering the dimensional sizes or shapes of the fullerenes used.

关键词： C60 C70 C86 Y@C82 ECSTM Au(111)

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FGS视频均等质量流化算法

计算机工程与应用 2004年第22期40卷 32-33,41页

作者：梅峥宁华李锦涛中国科学院计算技术研究所中国科学院研究生院北京100080

细粒度扩展编码(FGS:Fine-Granularity-Scalability)由于具有很强的灵活性和较好的视频流化性能已经被MPEG-4.H.26L等标准所采用。论文在相关研究的基础上,采用了基于滑动窗口的算法来进行FGS视频的均等质量流化。该算法通过FGS的失真... 详细信息

细粒度扩展编码(FGS:Fine-Granularity-Scalability)由于具有很强的灵活性和较好的视频流化性能已经被MPEG-4.H.26L等标准所采用。论文在相关研究的基础上,采用了基于滑动窗口的算法来进行FGS视频的均等质量流化。该算法通过FGS的失真模型,使用二分法对当前窗口中的所有帧进行速率分配。实验表明,该算法可以较好地实现速率的优化分配,使连续图像质量的变化更加平滑。

关键词： MPEG-4.粒度扩展均等质量失真模型

Evaluation of Impact of Major Causes of Death on Life Expectancy Changes in china,1990-2005

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Biomedical and Environmental sciences 2009年第5期22卷 430-441页

作者： YAN-HONG WANG LI-MING LI Department of Epidemiology&Biostatistics School of Public HealthPeking University Health Science CenterBeijing 100191China

Objective To evaluate the impact of major causes of death on changes of life expectancy in china. Methods Life expectancy was calculated by standard life table techniques using mortality data from the national censuses in 1990 and 2000 and the 1% National Population Sampling Surveys in 1995 and 2005, Mortality data about the major causes of death from VR-MOH were used as reference values to estimate their death proportions of the specific age groups by sex and regions, as well as all-cause mortality and age-specific mortality rates of major causes of death. Decomposition method was used to quantitatively evaluate the impact. Results Three key findings were identified in our study. First, china's health challenge was shifted from diseases related to living conditions to those related to behavior and lifestyle, with rural areas relatively lagged behind urban areas, Second, the impacts of cardiovascular diseases and neoplasm on the middle aged and elderly population were stressed. Third, compared to the urban population, the rural population tended to have increasing mortality of neoplasm and cardiovascular diseases, especially in adults at the age of 15-3. years. Conclusion Further efforts should be made to reduce the incidence of neoplasm and cardiovascular diseases, especially in rural areas, by promoting healthy behavior and lifestyle and providing appropriate therapies for all patients in need.

关键词： china Life expectancy Cardiovascular disease Neoplasm

Deformation Control of Deep Excavation Pit and Numerical Simulation with Finite Element Method

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Journal of china university of Geosciences 2002年第3期13卷 278-288页

作者： Li Yun’an Engineering Faculty, china university of Geosciences, Wuhan 4.3}074.{3. of Civil Engineering and Mechanics, Shanghai Jiaotong university, Shanghai 20003. Ge Xiurun {3. of Civil Engineering and Mechanics, Shanghai Jiaotong university, Shanghai 20003. tang Huiming Engineering Faculty, china university of Geosciences, Wuhan 4.3}074 Engineering Faculty China University of Geosciences Wuhan 430074 school of Civil Engineering and Mechanics Shanghai Jiaotong University Shanghai 200030 school of Civil Engineering and Mechanics Shanghai Jiaotong University Shanghai 200030 Engineering Faculty China University of Geosciences Wuhan 430074

The authors firstly introduce deformation control of deep excavation pit indetail, and then put forward new conceptions such as: effective coefficient of excavation pit,effective area, ineffective area and critical line, and also put forward the referential criteria ofdeformation control. The System of Optimization Design with Deformation Control of Deep ExcavationPit and Numerical Simulation with Finite Element Method (SDCDEFEM) is also briefly *** influencing deformation of excavation pit are analyzed by the system. The measured andsimulated data of maximum deformations (settlement, displacement and upheaval) and their positionsare analyzed and discussed. The statistic formula estimating maximum deformations and theirpositions was gained, and economical-effective measures of deformation control were brought forward.

关键词： deep excavation pit deformation control finite element effectivecoefficient of excavation pit

A SEMI-ACTUATOR DISK THEORY FOR PREDICTION OF STALL FLUTTER IN AXIAL FLOW COMPRESSORS

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Chinese Journal of Aeronautics 1989年第4期 241-246页

作者： Yang Xiaodong, tang Zhiming and Zhou Sheng beijing university of Aeronautics and Astronautics

One of the practical methods for predicting blade stall flutter in turbomachinery isa semi-empirical one (deformed actuator disk method). The reliability and simplicityof this method have been verified by the authors. Because the unsteady flow withinthe cascade channel is neglected in the actuator disk method, there are some errorsin computation by it. In order to improve this method, the authors developed a semi-actuatordisk method which can be used for stall flutter prediction. The simplifiedunsteady flow solution within the channel improves the solution by the actuator diskmethod. An example of computation has indicated that the predicting accuracy ofthe semi-actuator disk method is better than that of the actuator disk method.

关键词： A SEMI-ACTUATOR DISK THEORY FOR PREDICTION OF STALL FLUTTER IN AXIAL FLOW COMPRESSORS SEMI

Post-marketing Surveillance for Combined Oral Contraceptive Containing Desogestrel(Marvelon~) in Chinese Rural Areas

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Journal of Reproduction and Contraception 2008年第4期19卷 193-200页

作者： Hong-yan tang Ying LI Yu-lin WU Jian ZHOU Lei BA Xiao-ping GU Wei-dong WANG Hui YAO Nai-xiu REN Jian-hong CHEN Lian-fang XU Department of Epidemiology and Biostatistics School of Public Health Nanjing Medical University Nanjing 210029 China NPFPC Contraceptives Adverse Reaction Monitoring Center Nanjing 210036 China Jiangsu Research Centre for Reproductive Health in Humans Nanjing 210036 China Jianhu Institute of Family Planning Technical Instruction Yancheng 224700 China Gaoyou Institute of Family Planning Technical Instruction Yangzhou 225600 China Rudong Institute of Family Planning Technical Instruction Nantong 226400 China Taicang Institute of Family Planning Technical Instruction Suzhou 215400 China Jintan Institute of Family Planning Technical Instruction Changzhou 213200 China Changzhou Center for Disease Control and Prevention Changzhou 213003 China

To assess the side effects and the continuation rate of combined oral contraceptive （COC） containing desogestrel （Marvelon） during 12 months. Methods This was a post-marketing surveillance study on Marvelon COC among 870 healthy rural women in 5 different counties of Jiangsu Province during 12 months. Results About 24.02% of the women who used Marvelon COC experienced side effects during 12 months. Gastrointestinal disorder, bleeding/spotting and chloasma were ranked the first three in the side effects. The rate of side effects of Marvelon COC users during the first 3.months in southern area of Jiangsu was significantly higher than that of users in northern area of Jiangsu. Most of the users did not experience obvious weight changes i.e., loss or increase in weight of more than 5 kg during 12 months. Blood pressure and biochemical indicators of almost 99% among users were within the normal range. The gross cumulative continuation rate for 12 months was 83.14.; the most common medical reason for discontinuation was gastrointestinal disorder. There was an increased risk of discontinuation use among women with lower educational level. Conclusion Marvelon COC brought fewer side effects and was well accepted when applied in Chinese rural women.

关键词： combined oral contraceptive desogestrel side effects continuation rate