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笔谈:透视台湾地区2.2.年“两项选举”

台湾研究 2024年第1期 1-14页

作者： Institute of Taiwan Studies, chinese {2. of Social sciences 中国社会科学院台湾研究所

2.2.年1月13日,台湾地区领导人和立法机构“二合一”选举落下幕。民进党籍候选人赖清德、萧美琴当选台湾地区正副领导人。台湾地区立法机构总额113席中,中国国民党获52.,民进党获51席,民众党获8席,无党籍及未经政党推荐者获2..

关键词：中国国民党民进党立法机构台湾地区民众党推荐者二合一候选人

Properties and applications of cold supersonic gas jet

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Science China(physics,Mechanics & Astronomy) 2006年第6期49卷 709-715页

作者： ZHANG Shaofeng1,2.MA Xinwen1,2.LIU Huiping2.LI Bin1,2.& ZHU Xiaolong1,2.1. Institute of modern {2.,chinese academy of sciences,lanzhou 73.000,China 2. Graduate University of chinese academy of sciences,Beijing 100049,China 1. Institute of modern {2. Chinese Academy of Sciences Lanzhou 730000 China 2. Graduate University of chinese academy of sciences Beijing 100049 China

By analyzing the formation mechanism of a supersonic gas jet,a set of equations which describe the atomic beam properties were established. The influence of initial temperature,initial pressure,background gas pressure and pumping speed was discussed in detail. A simulation program was developed based on the equations,and the results under different initial conditions were obtained. The results are in good agreement with the experimental data,and suggest that,in order to get much smaller transverse momentum in collision experiments,it is necessary to lower the initial temperature and the initial pressure of the supersonic gas jet,together with increasing the pumping speed. These results are very instructive for construction of a new generation of cold supersonic gas jets.

关键词： cold supersonic gas jet,zone of silence,nozzle,skimmer.

Strengthening of the boreal winter Hadley circulation and its connection with ENSO

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Progress in Natural Science:Materials International 2007年第11期17卷 1327-1333页

作者： Ma Jie1,2.and Li Jianping2.1. College of Atmospheric sciences, lanzhou University,{2., China 2. LASG, Institute of Atmospheric physics, chinese academy of sciences, Beijing 10002., China) College of Atmospheric sciences Lanzhou University Lanzhou 730000 China LASG Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China

Empirical orthogonal function (EOF) analysis is carried out for the year-to-year variability of the boreal winter (DJF) mass stream function of the mean meridional circulation (MMC) during the period 1948—2.05. The results demonstrate that it is dominated by the equatorially asymmetric and symmetric modes. Further analysis shows that the former mode is linked with the boreal winter Hadley cell mainly on the decadal time-scale, and the latter on the interannual time-scale. The asymmetric mode index (AMI) with a clear upward trend contributes to the decadal strengthening of the boreal Hadley circulation, and is closely correlated with the tropical SST warming, especially in the region of Indo-west Pacific warm pool (INWP). Furthermore, the AMI also contributes to the abrupt change of the correlation coefficient between the boreal Hadley circulation and ENSO after 1976. The symmetric mode index (SMI) with robust and stable linkage with ENSO shows a significant interannual variability, suggesting that the variability of the Hadley circulation is mainly associated with ENSO on the interannual time-scale.

关键词： the Hadley circulation interannual time-scale decadal time-scale

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 {2. physics,chinese academy of sciences,lanzhou 73.000,China Department of Applied physics Xi'an Jiaotong University Xi'an 710049 China Institute of modern {2. Chinese Academy of Sciences Lanzhou 730000 China

We report the measured results of the 2.0 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 for12.Xe6+,12.Xe10+ and12.Xe15+ 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,12.Xe6+ 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.

Rem-meter correction factor for measuring high energyneutrons outside concrete shielding

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Nuclear Science and Techniques 1998年第2期9卷 109-112页

作者： Li Gui-Sheng (Institute of modern {2., the chinese academy of sciences, lanzhou 73.000) Inititute of modern physics Chinese Academy of Sciences Lanzhou 730000 China

Correction factors of both Rem-meters, the 10 inch diameter single-sphere Remmeter and the standard A-B Rem-meter, were estimated for measuring high energy neutron dose equivalent outside a concrete shielding wall and the effects that the emitted neutron spectra become remarkably "harder" penetrated through a concrete shielding wall, and the energy response of the Rem-meter were taken in account. The estimated results could be applied in the measurement of neutron dose equivalent for the intermediate energy heavy ion reactions to avoid the difficulty induced by the energy response of the Rem-meters.

关键词：高能中子混凝土屏蔽雷姆米修正因子

Anomalous Phenomena in E<18 keV Hydrogen Ion Beam Implantation Experiments on Pd and Ti

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chinese journal of nuclear physics 1997年第4期19卷 244-249页

作者： Wang Tieshan~(1) Piao Yubo~(2. Hao Jifang~(1) Wang Xuezhi~(2. Jin Genming~(1) Niu Zhanqi~(2. (1)Institute of modern {2.,the chinese academy of sciences,lanzhou 73.000 (2.Department of modern {2. of lanzhou University,lanzhou 73.000 中科院近代物理所甘肃兰州兰州大学现代物理系甘肃兰州

Implantation experiments of low energy（1 keVmax1.2.mA/cm2.and lowbeam density(Jmin0.02.mA/cm2..Palladium and titanium foils（plates）are bombarded withproton and deuteron beams in order to compare the atomic and nucl... 详细信息

Implantation experiments of low energy（1 keVmax1.2.mA/cm2./sup>)and lowbeam density(Jmin0.02.mA/cm2./sup>).Palladium and titanium foils（plates）are bombarded withproton and deuteron beams in order to compare the atomic and nuclear interactions between dif-ferent ion beams.X-ray and charged particles are measured,and neutron and gamma doses arealso monitored during the implantation *** anomalous peak in X-spectra,whoseenergy is about four times the beam energy,is observed during the high beam density *** peak moves from about 40 keV to 62.keV and FWHM reduces rapidly,while thebeam energy and intensity *** wide peak with over twice the beam energy is mea-sured in experiment with low beam *** is located between 16 keV and 30 keV,and itspeak energy increases with the increase of implantation dose（implantation time）.Some anoma-lous intensities of neutrons correlated with a charged particle peak（2.93,3.85 MeV）are alsoobserved in the deuteron-palladium *** highest neutron intensity reaches about8×104 n/s,while the beam energy and intensity are about 15 keV and 1.0 mA,respectively.

关键词： Hydrogen ion beam Low energy Implantation Palladium and titanium foils

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邓小平新时期军队建设思想的伟大历史贡献

党的文献 2024年第4期 81-86页

作者： academy of Military sciences 中国人民解放军军事科学院

邓小平新时期军队建设思想,是新时期我们党领导筹划国防和军队现代化建设的根本依据和指导方针。邓小平科学判断战争与和平态势,实行国防和军队建设指导思想战略性转变,明确军队在国家大局中的定位与使命,探索和平时期军队建设新特点规... 详细信息

邓小平新时期军队建设思想,是新时期我们党领导筹划国防和军队现代化建设的根本依据和指导方针。邓小平科学判断战争与和平态势,实行国防和军队建设指导思想战略性转变,明确军队在国家大局中的定位与使命,探索和平时期军队建设新特点规律;调整积极防御的军事战略方针,将战略态势上的防御性同军事指导上的积极性统一起来,与时俱进创新军事战略指导;提出建设一支强大的现代化、正规化的革命军队总目标,指明人民军队建设发展的正确方向,为我军全面建设和长远发展提供行动纲领;坚定不移走中国特色精兵之路,科学处理军队建设中数量与质量的辩证关系,创新国防和军队建设发展模式。今天我们回顾和纪念邓小平的伟大军事贡献,关键是学习他在历史大转折时期领导筹划国防和军队现代化建设的新思路新方法,进而深入领会习近平主席在世界百年未有之大变局和中华民族伟大复兴战略全局交织激荡之际与时俱进带领全军进行的伟大理论创造和实践探索,坚定不移在习近平强军思想的科学指导下更加奋发有为地推进强军兴军事业。

关键词：邓小平新时期军队建设思想国防和军队现代化军事战略强军兴军

The solid lubricating material experiment device for Shenzhou-7 Spaceship

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Science China(Technological sciences) 2010年第9期53卷 2521-2527页

作者： WANG Ke1,2.REN WeiJia1,WANG ShiDa1 & WENG LiJun3 1 academy of Opto-Electronics,chinese academy of sciences,Beijing 100190,China 2.Graduate University of chinese academy of sciences,Beijing 100049,China 3 lanzhou Institute of Chemical physics,chinese academy of sciences,lanzhou {12.,China 1. academy of Opto-Electronics Chinese Academy of Sciences Beijing 100190 China2. Graduate University of Chinese Academy of Sciences Beijing 100049 China3. Lanzhou Institute of Chemical Physics Chinese Academy of Sciences Lanzhou 730000 China

A solid lubricating material exposure experiment in space is one of the missions during the seventh manned spaceflight of China,and the key is to develop a device which can be fixed reliably outside of the orbital module and can be fetched conveniently by an astronaut during space *** solid lubricating material experiment device needs to be locked reliably in a vibrating and impacting environment during the launch phase,and should meet the requirement that it can be unlocked and fetched reliably by the astronaut wearing an extravehicular spacesuit via simple operations in orbit in an environment of high and low *** for the device we developed,the environmental characteristic of the mission was analyzed,the mechanical analysis and thermal analysis were carried out,and then a mechanism with functions of mechanical locking,structural self-locking and manual unlocking was *** device was verified by a sequence of experiments and was fetched by the astronaut during the flight of the Shenzhou-7 Spaceship.

关键词： manned spaceflight exposure experiment mechanism unlock

Near infrared lights emission of ^(40)Ar^(16+) impacting on metal surfaces

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Science China(physics,Mechanics & Astronomy) 2009年第7期52卷 1021-1026页

作者： ZHANG XiaoAn1,2. XIAO GuoQing2. YANG ZhiHu2. WANG Li1 & ZHAN WenLong2.1 Department of physics, Xianyang Normal University, Xianyang 712.00, China 2.Institute of {2. physics, chinese academy of sciences, lanzhou 73.000, China Department of physics Xianyang Normal University Xianyang 712000 China Institute of modern {2. Chinese Academy of Sciences Lanzhou 730000 China

The highly charged ion 40Ar16+ with the velocity (kinetic energy EK=150 keV, velocity V=8.5×105 m/s) smaller than Bohr velocity (VBohr=2.9×106 m/s) was found to hove impacts on the surfaces of metals Ni, Mo, Au and Al, and the Ar atomic infrared light lines and X-rays spectra were simultaneously measured. The experimental results show that the highly charged ion that captures electrons is neutralized, and the multiply-excited hollow atom forms. The hollow atom cascade decay radiates lights from infrared to X-ray spectrum. The intensity of infrared lights shows that the metallic work functions play an important role in the neutralization process of highly charged ions during their interaction with metallic surfaces, which verifies the classical over-the-barrier model.

关键词： infrared light lines X-ray neutralization highly charged ions