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Quantum properties of the binomial state field interacting with a two-level atom

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Science china(Physics,Mechanics & Astronomy) 2010年第5期53卷 864-869页

作者： JIANG DaoLai,REN XueZao,CONG HongLu & LI Lei school of Science,southwest university of Science and Technology,Mianyang 621010,china 1. school of Science Southwest University of Science and Technology Mianyang 621010 China

By the method of coherent-state orthogonalization expansion,the atomic inversion and the anti-bunching effect in a two-level atomic system interacting with binomial state field are studied under the Jaynes-Cummings model without rotating wave *** influence of the parameter and the detuning on the anti-bunching effect are discussed,and the anti-bunching effect is also discussed under the conditions of strong *** studies show that the second order coherence degrees are quite different between the situations of with and without-rotating wave *** the latter when the detuning increases,the duration of the bunching effect increases at the beginning and then decreases,and finally the light field displays anti-bunching effect completely.

关键词： coherent state orthogonalization expansion binomial state field Jaynes-Cummings model without-rotating wave approximation atomic inversion

Beyond the relativistic mean-field theory:configuration mixing of three-dimensional angular momentum projected states

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Beyond the relativistic mean-field theory:configuration mixi...

Study on the Reliability Evaluation of Qualitative Indices in Multi-Objective Decision

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： Jiangming Yao~(1)) school of Physical Science and Technology,southwest university,chongqing 400715,china

In recent years several accurate and efficient models and algorithms have been developed that perform the restoration of symmetries broken by the static nuclear mean field and take into account fluctuations around the mean-field *** most effective approach to configuration mixing calculations is the generator coordinate method(GCM).With the simplifying assumption of axial symmetry,GCM configuration mixing of one-dimensional angular-momentum projected(1DAMP) and even particle-number projected(PNP) quadrupole-deformed mean-field states,has become a standard tool in nuclear structure studies with Skyrme energy density functionals,the density-dependent Gogny force,and relativistic density functionals. Recently,the 1DAMP+GCM framework has been extended to include triaxial *** 3DAMP+GCM models with PNP have been developed,based on the self-consistent Hartree-Fock-Bogoliubov approach with Skyrme forces and the Gogny force.

关键词： relativistic mean-field theory angular momentum projection generator coordinate method triaxiality low-lying states

来源： cnki会议评论

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Journal of Systems Engineering and Electronics 2002年第2期13卷 60-63页

作者： Zhang Mingshan , Tang Xiaowo & He Dequan( school of Economics and Management, southwest university for Nationalities, Chengdu 610041, P.R.china school of Management, university of Electronics Science and Technology, Chengdu 610054, P.R.china school of school of Economics and Management Southwest University for Nationalities Chengdu 610041 P. R. China school of Management University of Electronics Science and Technology Chengdu 610054 P. R. China school of Economics and Management Huadong Polytechnic University Shanghai 200237 P. R. China

Qualitative indices in multi-objective decision can usually be evaluated and measured by mathematical methods or models, but the obtained results are sometimes inaccurate because of fuzziness of indices. To improve the accuracy and reliability of the evaluation results, set-value statistic principle is applied, and accordingly four evaluation methods are obtained. Meanwhile, these methods are compared briefly.

关键词： Evaluation Fuzzy sets Mathematical models Reliability

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社会游戏情境在幼儿遮挡绘画中的作用

心理科学 2004年第4期27卷 884-886页

作者：高雪梅李红郑持军西南师范大学心理学院重庆400715 西南师范大学出版社重庆400715

该研究以 90名 4— 5岁幼儿为被试 ,考察了遮挡方式、社会性游戏情境以及年龄对幼儿遮挡绘画的影响 ,结果表明 :(1 )幼儿遮挡绘画表征策略的发展不是以“全”或“无”的方式进行的 ,而是多种策略并存 ;(2 )部分遮挡、完全遮挡这两种遮... 详细信息

该研究以 90名 4— 5岁幼儿为被试 ,考察了遮挡方式、社会性游戏情境以及年龄对幼儿遮挡绘画的影响 ,结果表明 :(1 )幼儿遮挡绘画表征策略的发展不是以“全”或“无”的方式进行的 ,而是多种策略并存 ;(2 )部分遮挡、完全遮挡这两种遮挡方式的难易程度有很大的差异 ;(3)设置社会性游戏情境提高了幼儿遮挡绘画的表征策略水平 ;(4)与年龄相关的成熟水平是影响儿童遮挡绘画表征水平的重要因素。

关键词：遮挡绘画社会性游戏幼儿心理自我中心主义

Effect of surface nanocrystallization on the corrosion behavior of Zircaloy-4

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Science china(Technological Sciences) 2009年第8期52卷 2227-2231页

作者： ZHU YuTao1,2 & ZHANG XiYan1,2,3 1 College of Materials Science and Engineering, chongqing university, chongqing 400045, china 2 National Engineering Research Center for Magnesium Alloys, chongqing university, chongqing 400044, china 3 school of Physical Science and Engineering Technology, Guangxi university, Nanning 530004, china 1. College of Materials Science and Engineering Chongqing University Chongqing 400045 China 2. National Engineering Research Center for Magnesium Alloys Chongqing University Chongqing 400044 China 3. school of Physical Science and Engineering Technology Guangxi University Nanning 530004 China

The contrastive corrosion experiments between surface nanocrystallined Zircaloy-4 and coarse-grained Zircaloy-4 under the condition of 673 K/10.3 MPa in pure water are carried out, and the microstructure of oxide films has been studied. The results indicate that the growth rate of oxide films formed on the nanocrystalline Zircaloy-4 is lower than that of oxide films formed on the coarse-grained Zircaloy-4. Simultaneously, the oxide/metal interface of the former is more regular and glossy than that of the latter. For nanocrystalline Zircaloy-4, the low oxygen diffusion rate through the oxide/metal interface can hinder the reaction of oxygen ion with metal ion. Furthermore, more tetragonal ZrO2 are observed in the oxide films, which can delay the martensite phase transition from tetragonal to monoclinic phase in oxide films.

关键词： nanocrystalline Zircaloy oxide film microstructure

Ferroelectric properties of Bi_(3.4)Ho_(0.6)Ti_3O_(12) thin films prepared by sol-gel method

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Science china(Technological Sciences) 2008年第9期51卷 1439-1444页

作者： FU ChengJu1, HUANG ZhiXiong1, LI Jie2 & GUO DongYun3 1 school of Materials Science and Technology, Wuhan university of Technology, Wuhan 430070, china 2 school of Mechanical Engineering, chongqing university of Science and Technology, chongqing 400050, china 3 Department of Physics, Wuhan university, Wuhan 430072, china school of Materials Science and Technology Wuhan University of Technology Wuhan 430070 China school of Mechanical Engineering Chongqing University of Science and Technology Chongqing 400050 China Department of Physics Wuhan University Wuhan 430072 China

We have prepared the Ho-substituted bismuth titanate (Bi3.4Ho0.6Ti3O12, BHT) thin films on Pt/Ti/SiO2/Si substrates using sol-gel method. The crystal structure and morphology of the films were characterized using X-ray diffraction and atomic force microscopy. The BHT film shows a single phase of Bi-layered Aurivillius structure and dense microstructure. The 2Pr and 2Ec of the 600-nm-thick BHT film were 38.4 μC/cm2 and 376.1 kV/cm, respectively at applied electric field 500 kV/cm. The dielectric constant and dielectric loss are about 310 and 0.015 at a frequency of 1 MHz, respectively. The Pr value decreased to 93% of its pre-fatigue values after 4.46×109 switching cycles at 1 MHz frenquency, and the BHT film shows good in-sulating behavior according to the test of leakage current.

关键词： Bi3.4Ho0.6Ti3O12 thin film sol-gel method ferroelectric property fatigue dielectric constant

The Young's moduli prediction of random distributed short-fiber-reinforced polypropylene foams using finite element method

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Science china(Technological Sciences) 2009年第1期52卷 72-78页

作者： WANG Bo1, WANG RongXiu2 & WU Yong1 1 school of Mathematic Science, chongqing Institute of Technology, chongqing 400050, china 2 Department of Computer Science and Information Engineering, chongqing Technology and Business university, chongqing 400067, china school of Mathematic Science Chongqing Institute of Technology Chongqing 400050 China Department of Computer Science and Information Engineering Chongqing Technology and Business University Chongqing 400067 China

The elastic moduli of short-fiber-reinforced foams depend critically on the fiber content and fiber length, as well as on the fiber orientation distribution. Based on periodic tetrakaidecahedrons, the finite element models with short-fiber reinforcement were proposed in this paper to examine the effects of the fiber content and fiber length on Young's modulus. The fiber length distribution and fiber orientation distribution were also considered. The proposed models featured in a three-dimensional diorama with random short-fiber distribution within or on the surfaces of the walls and edges of the closed-cells of polypropylene (PP) foams. The fiber length/orientation distributions were modeled by Gaussian prob-ability density functions. Different fiber volume fractions, different lengths, and different distributions were investigated. The predicted Young's moduli of the PP foams with short-glass-fiber or short-carbon-fiber reinforcement were compared with other theoretic and experimental results, and the agreement was found to be satisfactory. The proposed finite element models were proved to be acceptable to predict the Young's moduli of the grafted closed-cell PP foams with short-fiber reinforcement.

关键词： short-fiber reinforcement Young’s modulus finite element Gaussian distribution

Semantic theory of finite lattice-valued propositional logic

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Science china(Information Sciences) 2010年第10期53卷 2022-2031页

作者： PAN XiaoDong 1,2 & XU Yang 2 1 school of Maths, southwest Jiaotong university, Chengdu 610031, china 2 Intelligent Control Development Center, southwest Jiaotong university, Chengdu 610031, china 1. school of Maths Southwest Jiaotong University Chengdu 610031 China2. Intelligent Control Development Center Southwest Jiaotong University Chengdu 610031 China

Based on the methodology of Pavelka’s fuzzy propositional logic, in this paper, by combining L-fuzzy set and classical two-value propositional logic theory, a kind of graded semantic theory in lattice-valued propositional logic based on finite lattice implication algebras is established. The notions of L-tautology and L-contradiction are introduced, and several theorems about the relations among different kinds of L-tautologies are given. From the viewpoint of uncertainty reasoning, the notion of satisfiability with certain level for a set of formulas is also defined. On this basis, the semantic consequence operation concerning a set of formulas is proposed, and the properties of semantic consequence operation and the consistency of fuzzy information are discussed.

关键词： lattice-valued propositional logic semantic theory L-tautology consistency lattice implication algebra

重庆市南开两江中学与意大利安东尼奥·佩森蒂国立中学签署合作备忘录

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重庆与世界 2024年第7期 54-55页

作者：陈果重庆市南开两江中学

7月9日，重庆市南开两江中学校与意大利安东尼奥·佩森蒂国立中学在市外事大楼通过视频会议签署姊妹学校合作备忘录，开启全新的教育交流和合作历程。市政府外办副主任张娅茜、意大利驻重庆总领事施启帆出席活动并致辞。张娅茜在致辞中...

7月9日，重庆市南开两江中学校与意大利安东尼奥·佩森蒂国立中学在市外事大楼通过视频会议签署姊妹学校合作备忘录，开启全新的教育交流和合作历程。市政府外办副主任张娅茜、意大利驻重庆总领事施启帆出席活动并致辞。张娅茜在致辞中表示，在全球化的大背景下，教育的意义已经远远超越了知识传授的范畴，成为连接不同文化、不同民族的桥梁。期待通过合作，中意两国学生能树立国际理解意识，学会尊重和欣赏不同的文化，为构建人类命运共同体贡献自己的力量。

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