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Journal of Contemporary Educational Research 2024年第10期8卷 294-299页

作者： Liangliang Zhang Liefu Ai Xin Zheng xianyang Wang Qingfeng Tang School of Computer and Information Anqing Normal UniversityAnqing 246133Anhui ProvinceChina

The teaching mode of the Computer Composition Principles includes theoretical and practical *** present,there is a problem of inconsistency in the teaching content of the two methods in our *** this end,this paper conducts online and offline hybrid teaching based on the learning platform and the virtual simulation experiment platform,and cleverly applies ideological and political elements to theoretical and practical teaching to practice ideological and political ***,the combination of theoretical and practical teaching modes can further help students firmly grasp the core knowledge points and improve the teaching quality and level of this course.

关键词： Theoretical teaching Practical teaching Ideological and political education Online and offline

X-ray spectra induced by slow highly charged Ar^(q+) ions in collision with Nb surface

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Science china(phys.cs,Mechanics & Astronomy) 2008年第10期51卷 1463-1469页

作者： YANG ZhiHu1, CUI Ying2. CHEN XiMeng2. SONG ZhangYong1, SHAO JianXiong2. RUAN FangFang1, ZHANG HongQiang2. DU Juan2. LIU YuWen2. GAO ZhiMing2. ZHANG XiaoAn3, ZHU KeXin1, YU DeYang1 & CAI XiaoHong1 1 Institute of Modern phys.cs, Chinese Academy of Sciences, Lanzhou 730000, china 2.Department of Modern phys.cs, Lanzhou University, Lanzhou 730000, china 3 Department of phys.cs, xianyang normal college, xianyang 712.00, china 1. Institute of Modern phys.cs Chinese Academy of Sciences Lanzhou 730000 China 2. Department of Modern phys.cs Lanzhou University Lanzhou 730000 China 3. Department of phys.cs Xianyang Normal College Xianyang 712000 China

The X-ray spectra of Nb surface induced by Arq+ (q =16,17) ions with the energy range from 10 to 2. keV/q were studied by the optical spectrum technology. The experimental results indicate that the multi-electron excitation occurred as a highly charged Ar16+ ion was neutralized below the metal surface. The K shell electron of Ar16+ was excited and then de-excited cascadly to emit K X-ray. The intensity of the X-ray emitted from K shell of the hollow Ar atom decreased with the increase of projectile kinetic energy. The intensity of the X-ray emitted from L shell of the target atom Nb increased with the increase of projectile kinetic energy. The X-ray yield of Ar17+ is three magnitude orders larger than that of Ar16+.

关键词： highly charged ion hollow atom multi-electron X-ray

X-ray spectra induced in highly charged 40Ar^q+ interacting with Au surface

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Science china(phys.cs,Mechanics & Astronomy) 2006年第2期49卷 203-212页

作者： ZHANG Xiao’an1,2. XIAO Guoqing1, YANG Zhihu1, CHEN Ximeng3, ZHAO Yongtao1, LI Fuli4, ZHANG Yinping1, CUI Ying3, ZHANG Hongqiang3, XU Xu3, SHAO Jianxiong3 & ZHAN Wenlong11. Institute of Modern phys.cs, Chinese Academy of Sciences, Lanzhou 730000, china 2. Department of phys.cs, xianyang normal University, xianyang 712.00, china 3. Department of Modern phys.cs, Lanzhou University, Lanzhou 730000, china 4. Department of Applied phys.cs, Xi’an Jiaotong University, Xi’an 710049, china 1. Institute of Modern phys.cs Chinese Academy of Sciences Lanzhou 730000 China 2. Department of phys.cs Xianyang Normal University Xianyang 712000 China 3. Department of Modern phys.cs Lanzhou University Lanzhou 730000 China 4. Department of Applied phys.cs Xi’an Jiaotong University Xi’an 710049 China

By use of optical spectrum technology, the spectra of X-ray induced by highly charged 40Arq+ ions interacting with Au surface have been studied. The results show that the argon Kα X-ray were emitted from the hollow atoms formed below the surface. There is a process of multi-electron exciting in neutralization of the Ar16+ion, with electronic con-figuration 1s2.in its ground state below the solid surface. The yield of the projectile Kα X-ray is related to its initial electronic configuration, and the yield of the target X-ray is related to the projectile kinetic energy.

关键词： highly charged ion hollow multi-electron excitation X- ray.

Kinetic energy and charge state effects in the X-ray emission of Mo surface induced by Xe^(q+)(q=2.,2.) ions

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Science china(phys.cs,Mechanics & Astronomy) 2008年第9期51卷 1240-1244页

作者： CUI Ying1,YANG ShengSheng2.YANG ZhiHu3,XU JinZhang1,ZHANG HongQiang1,XU Xu1,SHAO JianXiong1,LIU ZhaoYuan1,XIAO GuoQing3,ZHANG XiaoAn4,ZHAO YongTao3,ZHANG YanPing3 & CHEN XiMeng1 1 Department of Modern phys.cs,Lanzhou University,Lanzhou 730000,china 2.National Key Laboratory of Vacuum & Cryogenics Technology and phys.cs,Lanzhou 730000,china 3 Institute of Modern phys.cs,Chinese Academy of Sciences,Lanzhou 730000,china 4 normal college of xianyang,xianyang 713000,china Department of Modern phys.cs Lanzhou University Lanzhou 730000 China National Key Laboratory of Vacuum & Cryogenics Technology and phys.cs Lanzhou 730000 China Institute of Modern phys.cs Chinese Academy of Sciences Lanzhou 730000 China normal college of {2. Xianyang 713000 China

L-shell X-ray spectra of Mo surface induced by Xe2.+ and Xe2.+ were measured. The X-ray intensity was obtained in the kinetic energy range of the incident ions from 350 to 600 keV. The relationship of X-ray intensity ... 详细信息

关键词： X-ray surface kinetic energy and charge state effect Xeq+

X-ray spectra induced by ^(12.)Xe^(q+) impacting the metal surface

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Science china(phys.cs,Mechanics & Astronomy) 2008年第1期51卷 82-89页

作者： ZHANG XiaoAn 1,2.,XIAO GuoQing 1 ,YANG ZhiHu 1 ,CHEN XiMeng 3 ,ZHAO YongTao 1 , LI FuLi 4 ,WANG Li 1,2.,CUI Ying 3 ,ZHANG HongQiang 3 &ZHAN WenLong 1 1Institute of Modern phys.cs,Chinese Academy of Sciences,Lanzhou 730000,china 2.epartment of phys.cs,xianyang normal University,xianyang 712.00,china 3Department of Modern phys.cs,Lanzhou University,Lanzhou 730000,china 4Department of Applied phys.cs,Xi’an Jiaotong University,Xi’an 710049,china 1. Institute of Modern phys.cs Chinese Academy of Sciences Lanzhou 730000 China 2. Department of phys.cs Xianyang Normal University Xianyang 712000 China 3. Department of Modern phys.cs Lanzhou University Lanzhou 730000 China 4. Department of Applied phys.cs Xi’an Jiaotong University Xi’an 710049 China

Using the slow highly charged ions 12. Xe q+ (q=2.,2.,2.;initial kinetic T0≤4.65 keV/a.u.)to impact Au surface,the Au atomic Mαcharacteristic X-ray spectrum is *** result shows that as long as the charge state of projectile is high enough,the heavy atomic characteristic X-ray can be effectively excited even though the incident beam is very weak(nA magnitude),and the X-ray yield per ion is in the order of 10-8and increases with the kinetic energy and potential energy of *** measuring the Au Mα-X-ray spectra,Au atomic N-level lifetime is estimated at about 1.33×10-18s based on Heisenberg uncertainty relation.

关键词： slow highly charged ions characteristic X-ray level lifetime

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

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Science china(phys.cs,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 phys.cs, xianyang {2. University, xianyang 712.00, china 2.Institute of Modern phys.cs, Chinese Academy of Sciences, Lanzhou 730000, china Department of phys.cs Xianyang Normal University Xianyang 712000 China Institute of Modern phys.cs 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

Micro-plate magnetic chemiluminescence immunoassay and its applications in carcinoembryonic antigen analysis

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Science china Chemistry 2010年第4期53卷 812-819页

作者： LI ZhiYong1, ZHANG QianYun2. ZHAO LiXia1, LI ZhenJia3, HU GuoMao3, LIN Jin-Ming2.& WANG Shan4 1State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, china 2.epartment of Chemistry, Tsinghua University, Beijing 100084, china 3Beijing Chemclin Biotech Co., Ltd., Beijing Academy of Science and Technology, Beijing 100094, china 4School of Chemistry and Chemical Engineering, xianyang normal college, xianyang 712.00, china 1. State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China2. Department of Chemistry Tsinghua University Beijing 100084 China3. Beijing Chemclin Biotech Co. Ltd. Beijing Academy of Science and Technology Beijing 100094 China4. School of Chemistry and Chemical Engineering of Xianyang Normal College Xianyang 712000 China

A micro-plate magnetic chemiluminescence immunoassay was developed for rapid and high throughput detection of carcinoembryonic antigens (CEA) in human sera. This method was based on a sandwich immunoreaction of fluorescein isothiocyanate (FITC)-labeled anti-CEA antibodies, CEA antigens, and horseradish peroxidase (HRP)-conjugated anti-CEA antibodies in mi- cro-plate. The immunomagnetic particles coated with anti-FITC antibodies were used as the solid phase for the immunoassay. The separation procedure was carried out by a magnetic plate adaptor and the luminol-hydrogen peroxide (H2.2.-HRP system was employed for the chemiluminescence detection. The proposed method combined the advantages of the micro-plate reactor and magnetic particle separation technology with the linear range of 5-2.0 ng mL·1. The detection limit of CEA was 0.61 ng mL·1. The coefficient of the variation was less than 7% and 13% for intra-assay and inter-assay precision, respectively. Compared with the commercial micro-plate chemiluminescent kit, the proposed method showed a good correlation.

关键词： micro-plate magnetic chemiluminescence immunoassay carcinoembryonic antigen tumor marker

Scenario simulation and forecast of land use/cover in northern china

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Chinese Science Bulletin 2008年第9期53卷 1401-1412页

作者： LI YueChen 1,2.3 & HE ChunYang 3 1 college of Geographical Science, Chongqing normal University, Chongqing 400047,{2. 2.college of Resources and Environmental Science, Chongqing University, Chongqing 400044,{2. 3 college of Resources Science & Technology, Beijing normal University, Beijing 100875,{2. college of Geographical Science Chongqing Normal University Chongqing 400047 China college of Resources and Environmental Science Chongqing University Chongqing 400044 China college of Resources Science & Technology Beijing Normal University Beijing 100875 China

Modeling land use/cover scenario changes and its potential impacts on structure and functions of ecosystem in typical regions are helpful to understanding the interactive mechanism between land use/cover system and ecosystem. Based on the analysis of the existing land use/cover simulation and forecast models, a land use/cover scenario dynamics model by the integration of System Dynamics (SD) model, Back Propagation Neural Network (BPNN) and Cellular Automata (CA) model is developed with land use/cover scenario changes in northern china in the next 30 years and simulated in this paper. The model is to simulate the land use/cover scenario demands by using a SD model at first, and then allocating the land use scenario patterns at the local scale with the considerations of land use/cover suitability, inheritance ability and neighborhood effect by using BPNN-CA model to satisfy the balance between land use/cover scenario demands and supplies. It integrates the advantages of SD, BPNN and CA. Macro-driving factors and the micro-spatial pattern are also fully taken into account. The BPNN simplifies the identification of the factors’ weights used in CA model and improves the reliability of the simulation results. The simulation accuracy of the model developed in this paper was found to be about 74%. It suggests that the model has the ability to reflect the complexity of land use/cover system at different scales to some extent and it is a useful tool for assessing the potential impacts of land use system on ecosystem. The simulated results also indicate that the urban land, water area and forest will increase significantly, and farmland and unable land will decrease gradually. Obvious land use/cover changes will take place in the farming-pastoral zone and the southeast area of northern china.

关键词：土地利用中国北方细胞自动机系统动力学

Spectral anomalies and spectral switches of partially coherent and polychromatic light diffracted at an aperture

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Science china(phys.cs,Mechanics & Astronomy) 2004年第1期47卷 24-35页

作者： Lü Baida1, 3 & PAN Liuzhan1, 2.1. Institute of Laser phys.cs and Chemistry, Sichuan University, Chengdu 610064, china 2. Department of phys.cs, Luoyang normal college, Luoyang 47102., china 3. State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, china Correspondence should be addressed to L Baida (email: badalu@***) Received July 10, 2.03 1. Institute of Laser phys.cs and Chemistry Sichuan University 610064 Chengdu China 2. State Key Laboratory of Laser Technology Huazhong University of Science and Technology 430074 Wuhan China 3. Department of phys.cs Luoyang Normal College 471022 Luoyang China

Based on the propagation theory of partially coherent light in the space-frequency domain, the anomalous spectral behavior and spectral switches in the far field of partially coherent and polychromatic light diffracted at an aperture are studied. It is shown that, as compared with spatially fully coherent and polychromatic light whose spectral anomalies are induced only by aperture diffraction, the spectral anomalies and spectral switches of partially coherent and polychromatic light depend on the aperture diffraction, spatial correlationβ and bandwidth of the original spectrum. Detailed numerical calculations are made to illustrate the behavior of spectral switches of partially coherent and polychromatic light, and the results for spatially fully coherent and polychromatic light are treated as a special case ofβ=1 and included in our theory.

关键词： spectral anomaly spectral switch partially coherent and polychromatic light far field aperture diffraction

Quantum secret sharing between m-party and n-party with six states

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Science china(phys.cs,Mechanics & Astronomy) 2009年第8期52卷 1191-1202页

作者： GAO Ting1,YAN FengLi2.3 & LI YouCheng2.3 1 college of Mathematics and Information Science,Hebei normal University,Shijiazhuang 050016,{2. 2.college of phys.cs and Information Engineering,Hebei normal University,Shijiazhuang 050016,{2. 3 Hebei Advanced Thin Films Laboratory,Shijiazhuang 050016,{2. college of Mathematics and Information Science Hebei Normal University Shijiazhuang 050016 China college of phys.cs and Information Engineering Hebei Normal University Shijiazhuang 050016 China Hebei Advanced Thin Films Laboratory Shijiazhuang 050016 China

A quantum secret sharing scheme between an m-party group and an n-party group is proposed using three conjugate bases.A sequence of single photons,each of which is prepared in one of the six states,is used directly to encode classical information in the quantum secret sharing *** this scheme,each of all m members in group 1 chooses randomly his/her own secret key individually and independently,and directly encodes his/her respective secret information on the states of single photons via unitary operations,then the last one sends 1/n of the resulting qubits to each member of group *** measuring their respective qubits,all members in group 2.share the secret information shared by all members in group *** renders impossible a Trojan horse attack with a multi-photon signal,a fake-signal attack with EPR pairs,an attack with single photons,and an attack with invisible *** give the upper bounds on the average success probabilities for dishonest agent eavesdropping encryption using the fake-signal attack with any two-particle entangled states.

关键词： quantum secret sharing security EPR pairs