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Multiparty simultaneous quantum identity authentication with secret sharing

Science china(physics,{2. & Astronomy) 2008年第3期51卷 321-327页

作者： YANG YuGuang1,2.WEN QiaoYan3 & ZHANG Xing4,5 1 College of Computer Science and Technology,Beijing University of Technology,Beijing 10002.,china 2.State Key Laboratory of Information Security (Graduate University of the Chinese academy of Sciences),Beijing 100049,china 3 School of Science,Beijing University of Posts and Telecommunications,Beijing 100876,china 4 Institute of Electronic Technology,Information engineering University,Zhengzhou 450004,china 5 Trusted Computing Laboratory,Beijing University of Technology,Beijing 10002.,china College of Computer Science Technology Beijing University of Technology Beijing 100022 China State Key Laboratory of Information Security [Graduate University of the Chinese academy of Sciences] Beijing 100049 China School of Science Beijing University of Posts Telecommunications Beijing 100876 China Institute of Electronic Technology Information Engineering University Zhengzhou 450004 China Trusted Computing Laboratory Beijing University of Technology Beijing 100022 China

Two multiparty simultaneous quantum identity authentication (MSQIA) protocols based on secret sharing are presented. All the users can be authenticated by a trusted third party (TTP) simultaneously. In the first protocol,the TTP shares a random key K with all the users using quantum secret sharing. The ith share acts as the authentication key of the ith user. When it is necessary to perform MSQIA,the TTP generates a random number R secretly and sends a sequence of single photons encoded with K and R to all the users. According to his share,each user performs the corresponding unitary operations on the single photon sequence sequentially. At last,the TTP can judge whether the impersonator exists. The sec-ond protocol is a modified version with a circular structure. The two protocols can be efficiently used for MSQIA in a network. They are feasible with current technol-ogy.

关键词： quantum identity authentication secret sharing quantum cryptography

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The behavior of attractors for damped Schrdinger-Boussinesq equation

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Communications in Nonlinear Science and Numerical Simulation 2001年第1期 54-60页

作者： Boling GUO and Xianyun DU (Institute of Applied physics and Computational Mathematics, Beijing 100088, china Graduate School, Chinese {2. of engineering physics, Beijing 100088, china Department of Mathematics, mianyang Normal College, Miangang 6

In this paper, we study the attractor and its regularity of the damped Schrodinger-Boussionesq equation.

关键词： Schrdinger-Boussinesq equation attractor Regularity

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Giant magnetoimpedance effect of multilayered structure(F/SiO_2._3/Ag/(SiO_2.F)_3 films deposited in a longitudinal magnetic field

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Science china(Technological Sciences) 2010年第3期53卷 287-292页

作者： CHEN WeiPing1,2.SHAO XianYi1,2.FENG ShangShen1,2.XIAO ShuQin3 & LIU YiHua3 1 School of physics and Electronics engineering,Zhejiang Taizhou University,Taizhou 318000,{2. 2.Institute of Function Materials for Electronic Information,Zhejiang Taizhou University,Taizhou 318000,{2. 3 School of physics,Shandong University,Jinan 2.0100,{2. 1. School of physics and Electronics engineering Zhejiang Taizhou University Taizhou 318000 China2. Institute of Function Materials for Electronic Information Zhejiang Taizhou University Taizhou 318000 China3. School of Physics Shandong University Jinan 250100 China

The soft magnetic properties and giant magnetoimpedance(GMI) effect of the multilayered structure(F/SiO2.3/Ag/(SiO2.F)3(F≡Fe71.5Cu1Cr2.5V4Si12.9) films,which were prepared by radio frequency sputtering without and with a longitudinal magnetic field of about 72.kA/m,are *** results show that the GMI effect almost cannot be detected in the samples deposited without field,whereas,a longitudinal magnetic field applied during deposition process obviously optimizes the soft magnetic properties of the films,and noticeable GMI effect is *** maximum values of the longitudinal and transverse GMI ratios are 45% and 44% at the frequency of 6.81 MHz,*** addition,the dependence of magnetoimpedance ratio,magnetoresistance ratio,magnetoreactance ratio and effective permeability ratio on the frequency has been *** found that the GMI spectrum curves in the longitudinal and transverse cases almost overlap for the field-deposited *** GMI effect is mainly a giant magnetoinductive effect at low *** f >9 MHz,magnetoreactance ratio changes to a negative,i.e.,the property of reactance changes from inductive to capacitive.

关键词： Fe-based soft magnetic alloy as-deposited multilayered films giant magnetoimpedance effect effective permeability magnetic anisotropy

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金属Pd薄膜的超临界流体沉积制备及其结构表征

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物理学报 2011年第8期60卷 723-729页

作者：王燕磊张占文李波江波四川大学化学学院成都610064 中国工程物理研究院激光聚变研究中心高温高密度等离子体物理国防科技重点实验室绵阳621900

用超临界流体化学沉积法以有机金属化合物为前驱物制备金属单质薄膜.超临界CO2.溶剂,六氟乙酰丙酮钯(Pd(Ⅱ)(hfac)2.为前驱物,在温度为100℃、压力为12.18MPa、反应时间为10—2.h的条件下,经过H2.催化还原在单晶Si片上制备金属Pd薄膜... 详细信息

用超临界流体化学沉积法以有机金属化合物为前驱物制备金属单质薄膜.超临界CO2.溶剂,六氟乙酰丙酮钯(Pd(Ⅱ)(hfac)2.为前驱物,在温度为100℃、压力为12.18MPa、反应时间为10—2.h的条件下,经过H2.催化还原在单晶Si片上制备金属Pd薄膜,薄膜均匀且连续,厚度为0.3—1.5μm.经X射线光电子能谱和X射线衍射谱分析可知,沉积的薄膜为金属Pd单质晶体结构.扫描电子显微镜研究结果表明,沉积压力对薄膜的晶粒尺寸有很大的影响.当沉积压力为12.Pa时,得到的薄膜晶粒尺寸为30—60nm;当压力为15MPa时,得到的薄膜晶粒尺寸为90—12.nm;当压力为18MPa时,得到的薄膜晶粒尺寸为150—180nm.在温度一定的条件下,压力越大,晶粒尺寸越大.利用相同的沉积条件,在内径约为0.6mm,长度约为1mm的相对封闭金柱腔内表面沉积得到Pd薄膜.

关键词：超临界流体沉积金属Pd薄膜 H2. 柱腔

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Selected issues at the interface between nuclear physics and astrophysics as well as the standard model

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中国科学：物理学、力学、天文学英文版 2011年第S1期54卷 119-123页

作者： MENG Jie1,2.3, NIU ZhongMing1, LIANG HaoZhao1 & SUN BaoHua2.4 1State Key Laboratory of Nuclear physics and Technology, School of physics, Peking University, Beijing 100871,{2. 2.chool of physics and Nuclear Energy engineering, Beihang University, Beijing 100191,{2. 3Department of physics, University of Stellenbosch, Stellenbosch, South Africa 4Justus-Liebig-Universita¨t Giessen, Heinrich-Buff-Ring 14, Giessen 35392. Germany 1. State Key Laboratory of Nuclear physics and Technology School of Physics Peking University Beijing 100871 China 2. School of physics and Nuclear Energy engineering Beihang University Beijing 100191 China 3. Department of physics University of Stellenbosch Stellenbosch South Africa 4. Justus-Liebig-Universit?t Giessen Heinrich-Buff-Ring 14 Giessen 35392 Germany

The density functional theory (DFT) with a minimal number of parameters allows a very successful phenomenological description of ground state properties of nuclei all over the periodic table. The recent developments on the application of the covariant density functional theory as well as its extensions by the group in Beijing for a series of interests and hot topics in nuclear astrophysics and nuclear structure are reviewed, including the rapid neutron-capture process, Th/U chronometer, and isospin corrections for superallowed β transitions.

关键词： rapid neutron-capture process nuclear chronometer isospin symmetry-breaking corrections

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Poincaré and Poincaré-Cartan integral invariants of a generalized Hamiltonian system

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Communications in Nonlinear Science and Numerical Simulation 2001年第1期6卷 45-49页

作者： Yongxin GUO, Liyan JIANG and Ying YU (Department of physics, Liaoning University, Shenyang 11002., china Department of Electronics and Information {2., Dandong Advanced academy, Dandong 118000, china School of Science, Shenyang University of Te Department of physics Liaoning University Shenyang 110036 China Dept. of Electronics and Info. Eng. Dandong Advanced Academy Dandong 118000 China School of Science Shenyang University of Technology Shenyang 110023 China

Without Darboux’s transformation, the traditional Hamiltonian formulation of dynamical systems is only suitable to conservative systems or self-adjoint systems. Based on an extension of dynamic space of Birkhoffian systems to a generalized phase space by intro- ducing dummy variables, a generalized Hamiltonian canonical formulation of general systems is constructed, which admits symplectic structure. There exist integral invariants of Poincare and Poincare-Cartan’s type for such systems.

关键词： Birkhoffian systems symplectic structure integral invariants

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金属纳米团簇复合薄膜Au/BaTiO_3与Fe/BaTiO_3的PLD制备及其光吸收特征

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物理学报 2004年第3期53卷 932-935页

作者：王伟田杨光关东仪吴卫东陈正豪中国科学院物理研究所光物理开放实验室北京100080 中国工程物理研究院激光聚变研究中心绵阳621900

用脉冲激光沉积技术制备了掺杂纳米金属颗粒Au或Fe的BaTiO3复合薄膜 .用透射电子显微镜和x射线光电子能谱表征了金属颗粒的形态和化学态 .330— 80 0nm范围的吸收谱研究表明 ,掺Au颗粒的BaTiO3薄膜在 5 80nm附近有一个明显的共振吸收峰 ... 详细信息

用脉冲激光沉积技术制备了掺杂纳米金属颗粒Au或Fe的BaTiO3复合薄膜 .用透射电子显微镜和x射线光电子能谱表征了金属颗粒的形态和化学态 .330— 80 0nm范围的吸收谱研究表明 ,掺Au颗粒的BaTiO3薄膜在 5 80nm附近有一个明显的共振吸收峰 ,而掺Fe颗粒的BaTiO3薄膜没有这样的吸收峰 .

关键词：复合薄膜纳米金属颗粒脉冲激光沉积技术掺杂钛酸钡薄膜 Mie散射

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Lethality Test Simulation System for Conventional Warhead Based on Numerical Results

Lethality Test Simulation System for Conventional Warhead Ba...

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Asian Simulation Conference/The 6th International conference on system Simulation and Scientific Computing

作者： YANG Yunbin, QU Ming. QIAN Lixin (Institute of Structural mechanics, china academy of engineering physics, {2., Sichuan, 62.900,china)

The paper presents design and implementation of lethality test simulation system. The function of the system is analyzed based on lethality simulation method for conventional warhead [1]. The general frame and software structure of the system are established, the key technique is illustrated, and the implementation of the system is analyzed. On the base of the computer simulation, lethality test simulation system is achieved. Using the system, the characteristic parameters and lethality parameters are gained, numerical simulation of the whole process for fragment field formed, fragment movement, and fragment impact on target is achieved. For an aimable fragmentation warhead, a generic simulation example is given, and we analyze the powerful parameters that affect warhead lethality.

关键词： OpenGL, lethality test simulation, numerical simulation, conventional warhead

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一种短波通信盲信道快速分离算法

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通信学报 2003年第7期24卷 59-65页

作者：李合生赵明生吴佑寿清华大学电子工程系中国工程物理研究院电子工程研究所四川绵阳621900

在短波通信中针对盲信道个数不恒定、信道频谱理论上不重叠的盲信道分离问题,基于小波多分辨率分析技术提出一种盲信道快速分离算法,并对实测短波通信信号进行盲信道快速分离的Monte Carlo试验。仿真结果表明,本文所提出的短波盲信道快... 详细信息

在短波通信中针对盲信道个数不恒定、信道频谱理论上不重叠的盲信道分离问题,基于小波多分辨率分析技术提出一种盲信道快速分离算法,并对实测短波通信信号进行盲信道快速分离的Monte Carlo试验。仿真结果表明,本文所提出的短波盲信道快速分析算法的分离精度和信道正确分离率都较高、抗噪声干扰能力强。

关键词：短波通信盲信道快速分离算法小波多分辨率分析信道分离

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Sorption of Pb(Ⅱ) from aqueous solution by konjac glucomannan beads

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中国科学:技术科学 2010年第4期 465-465页

作者： LONG XiaoYan 1,2.LUO XueGang 1,WANG Yang 1 & LI Zheng 1 1 School of Life Science and engineering,Southwest University of Science and Technology,mianyang 62.000,{2. 2.3},mianyang 62.000,{2.

Konjac glucomannan beads have been investigated as metal biosorbent for Pb(Ⅱ)from aqueous *** effect of contact time,solution pH,initial metal concentration,and desorption were studied in batch experiments at 2.°C±2.C. Maximum mental sorption was found to occur at initial pH *** studies revealed that the initial uptake was rapid and equilibrium was established in 3 h and that the data followed the prseudo-second order *** equilibrium sorption data at initial pH 4.0 were described by the Langmuir and Freundlich isotherm models;however,Langmuir isotherm model has been found to provide the best *** highest value of Langmuir maximum uptake(qmax)was found to be 105.71 mg·g -1 .Similar Freundlich empirical constant(KF)was obtained to be 1.98 for ***-complexation may be involved in the sorption process of *** experiments showed evidence that after two contacts neither HCl nor EDTA solutions were able to desorb lead from the konjac glucomannan beads,but the desorbtion efficacy of HCl solution was higher than EDTA *** results obtained show that konjac glucomannan beads may be used for the treatment of wastewater contaminated with lead.

关键词： lead konjac glucomannan beads wastewater biosorption

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