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一种改进的宽巷引导整周模糊度固定算法

武汉大学学报（信息科学版） 2018年第4期43卷 637-642页

作者：刘硕张磊李健北京理工大学信息与电子学院北京100081 北京理工大学卫星导航电子信息技术教育部重点实验室北京100081

一般卫星导航接收机的伪距测量误差大于宽巷波长。根据宽巷引导模型,直接使用双差伪距取整固定双差宽巷整周模糊度有很大概率会产生一周固定错误。基于此,提出了一种改进的宽巷引导整周模糊度固定算法,针对宽巷整周模糊度一周固定错误... 详细信息

一般卫星导航接收机的伪距测量误差大于宽巷波长。根据宽巷引导模型,直接使用双差伪距取整固定双差宽巷整周模糊度有很大概率会产生一周固定错误。基于此,提出了一种改进的宽巷引导整周模糊度固定算法,针对宽巷整周模糊度一周固定错误进行探测和修复。利用整周模糊度为整数的特质构造理论探测量,并将该探测量与载噪比所确定的门限相比较,判断是否出现宽巷整周模糊度一周固定错误;利用双差整周模糊度自由度为3的特点,修复错误宽巷整周模糊度。对该算法在高斯噪声条件下的可行性进行了理论分析,结果表明正常载噪比的观测数据均可分辨出一周宽巷整周模糊度的估计错误。同时,分析了考虑多径等误差后该算法所能接受的载波相位最大误差。计算了不同伪距误差下宽巷整周模糊度一周固定错误出现的概率。使用GPS实测短基线数据对算法进行验证,该算法可将基于宽巷引导的整周模糊度固定算法的固定率从原来的只有不到1/3提升至接近100%。

关键词： GPS 宽巷整周模糊度整数引导固定错误

A Particle Swarm Optimization Algorithm for the Hybrid Facility Location Problem

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A Particle Swarm Optimization Algorithm for the Hybrid Facil...

第六届中国不确定系统年会

作者： Wen He school of Information,Renmin University of china,{2. 100084,china

＜正＞In this paper,the facility location problem is formulated as a hybrid expected cost minimization model,in which the demands are hybrid variables, the capacities are limited and the the customers may not be supplied by the nearest factory *** pa- per designs a hybrid simulation based particle swarm optimization（PSO）algorithm to solve this problem. And a numerical example is provided for illustrating the effectiveness of the PSO algorithm.

关键词： particle swarm optimization facility location problem hybrid simulation

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论非法人团体的法律地位

现代法学 2003年第5期25卷 12-16页

作者：尹田北京大学北京100087

团体人格(法人)是经济发展所导致的法律调控技术发展的结果,其目的不仅在于赋予需要并且适于作为交易主体的组织以交易主体(合同当事人)资格,同时更重要的是赋予作为社会经济生活之实体存在的团体以完全的法律人格,使其能够成为财产的... 详细信息

团体人格(法人)是经济发展所导致的法律调控技术发展的结果,其目的不仅在于赋予需要并且适于作为交易主体的组织以交易主体(合同当事人)资格,同时更重要的是赋予作为社会经济生活之实体存在的团体以完全的法律人格,使其能够成为财产的所有人并独立承担财产上所生之一切义务。由此,团体人格可以分为"形式人格"和"实质人格"两个侧面。非法人团体能够以自己的名义"独立"对外订立合同,但其既不能独立享有财产权利、也不能独立承担财产责任,故其仅具有团体人格之形式而无团体人格之实质。

关键词：非法人团体法律地位团体人格法人财产责任法人制度法人资格中国

Quest for chirality in 107Ag

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Quest for chirality in 107Ag

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： HE Chuang-Ye~1 ZHANG Biao~(1,2. ZHU Li-Hua~(3,2. WU Xiao-Guang~1 SUN Hui-Bin~2.ZHENG Yun~1 WANG Lie-Lin~(1,4) YU Bei-Bei~1 YAO Shun-He~1 LI Guang-Sheng~1 XU Chuan~5 WANG Jian-Guo~6 GU Long~6 ZHANG Ming~6 1(china Institute of Atomic Energy,beijing 102.13,china) 2.school of Science,Shenzhen University,Shenzhen 518060,china) 3(school of physics and nuclear energy engineering,beijing University of Aeronautics and Astronautics,beijing 100191,china) 4(Department of Physics,Jilin University,Changchun 13002.,china) 5(school of Physics and MOE key laboratory of Heavy Ion Physics,Peking University,beijing 100087,china) 6(Department of Physics,Tsinghua University,beijing 100084,china)

High-Spin states in nuclei at A～100 mass region have been extensively studied in the recent years. There exists plenty of interesting phenomena in their structure,such as shape co-existence,band termination, magnetic rotations,chiral rotations and so *** them,the chirality attracted much attention both by theoretician and *** the previous study,doublet bands structure was found in *** present work,its neighbouring isotope Ag is selected to quest for the chiral bands.

关键词： high spin states level scheme chirality

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磷酸三异戊脂萃取苯酚的研究

上海大学学报（自然科学版） 2005年第1期11卷 67-70页

作者：程倩包伯荣吴明红叶国安张先业上海大学理学院上海200444 上海大学射线应用研究所上海201800 中国原子能科学研究院放射化学研究所北京102413

通过磷酸三异戊脂(TiAP)萃取苯酚的平衡常数的测定,发现磷酸三异戊脂对苯酚具有很高的萃取分配比,且分相很快;并探讨了盐析效应.采用双对数斜率法测得TiAP与苯酚的萃合物组成,考察了TiAP萃取苯酚的温度效应,根据Van'tHoff方程求出相关... 详细信息

通过磷酸三异戊脂(TiAP)萃取苯酚的平衡常数的测定,发现磷酸三异戊脂对苯酚具有很高的萃取分配比,且分相很快;并探讨了盐析效应.采用双对数斜率法测得TiAP与苯酚的萃合物组成,考察了TiAP萃取苯酚的温度效应,根据Van'tHoff方程求出相关的热力学函数,同时利用IR探讨了萃合物的结构.

关键词： TiAP 萃取苯酚

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宏观金融博弈分析与我国货币政策实践

学习与探索 2001年第5期 61-67页

作者：王芳中国人民大学财政金融学院北京100872

西方经济学界将博弈分析方法推广到金融领域取得了理论成果，尤其以宏观金融博弈分析在２０世纪９０年代的最新发展为主要内容。完全信息动态博弈和不完全信息动态博弈两类模型，对货币政策的连贯性与可信度以及中央银行声誉做出了重新... 详细信息

西方经济学界将博弈分析方法推广到金融领域取得了理论成果，尤其以宏观金融博弈分析在２０世纪９０年代的最新发展为主要内容。完全信息动态博弈和不完全信息动态博弈两类模型，对货币政策的连贯性与可信度以及中央银行声誉做出了重新解释，货币政策目标、货币政策操作程序、中央银行独立性及政策透明度等热点问题在我国金融体制改革实践中的作用是至关重要的。

关键词：宏观金融博弈论货币政策实践

Modeling and Simulation of VRP in Wartime Using NSGA Ⅱ

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Modeling and Simulation of VRP in Wartime Using NSGA Ⅱ

第2.届中国控制与决策会议

作者： Jiangyun Li 1,2., Xiaobo Jing 1,2., Chaonan Tong 1,2.1. school of Automation & Electrical Engineering, University of Science and Technology beijing, beijing , 1000832. Key Laboratory of Advanced Control of Iron and Steel Process (Ministry of Education), beijing , 100083

Aiming at VRP in modern military logistics, this paper sets up the multi-objective VRP mathematical model of military logistics in wartime. This model is solved by NSGA II, and improves the dependence on the initial population and the deficiency in the practical application from NSGA II, and has improved the population initialization and intersection in NSGA II algorithm by the introduction of Greedy algorithm. The algorithm is realized by Matlab programming and applied by examples. After the simulation is improved, NSGA II is able to solve the multi-objective VRP of military logistics in wartime.

关键词： Military Logistics Multi-objective Optimization VRP NSGAⅡ

Phase reaction of Au/Sn solder bonding for GaN-based vertical structure light emitting diodes

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Science china(Technological Sciences) 2010年第2期53卷 301-305页

作者： TIAN PengFei, SUN YongJian, CHEN ZhiZhong, QI ShengLi, DENG JunJing, YU TongJun, QIN ZhiXin & ZHANG GuoYi State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, school of Physics, Peking University, beijing 100871,{2. 1. State Key Laboratory for Artificial Microstructure and Mesoscopic Physics School of Physics Peking University Beijing 100871 China

Au/Sn solder bonding on Si substrates was used to fabricate the GaN-based vertical structure light emitting diodes (VSLEDs). The phase reaction of Au/Sn solder under different bonding conditions was investigated by the measurement of electron back scattering diffraction (EBSD), and the characteristics of VSLED were analyzed by scanning acoustic microscope (SAM), Raman scattering, current-voltage (I-V) and light output-current (L-I) curves. After the bonding process, horizontal stripes of Au/Sn phase (δ phase) and Au5Sn phase (ζ phase) were redirected to vertical stripes, and δ phase tended to move to the solder joint. Sn interstitial diffusion led to the distribution of δ phase and voids in Au/Sn solder, which could be seen in SAM and SEM images. Vertical distribution of the δ phase and ζ phase with proper voids in the Au/Sn bonding layer showed the best bonding quality. Good bonding quality led to little shift of the E2.high mode of Raman spectra peak in GaN after laser lift off (LLO). It also caused more light extraction and forward bias reduction to 2.9 V at 2. mA.

关键词： GaN LED bonding Au/Sn phase

Enhancement of β-Crystalline Phases of Hybrids of Poly（vinylidene fluoride） in the presence of Hyperbranched co-polymer wrapped Multiwall Carbon Nanotube

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Enhancement of β-Crystalline Phases of Hybrids of Poly（vin...

氟化学与美好生活——中国化学会第十一届全国氟化学会议

作者： Rui Song~(1*),Linghao He~1,Lu Yao~1,Jing Sun~1,Jie Yang~2.Jialong Li~1,Wei Huang~3 1.Key Lab of Surface and Interface Sciences of Henan Provincial,Zhengzhou University of Light Industry, Zhengzhou,china 450005 2.College of Chemistry and Chemical Engineering,graduate University of Chinese Academy of Sciences,{2.,china 3.Laboratory of Advanced Polymer Materials,Institute of Chemistry,Chinese Academy of Sciences,{2.,china

＜正＞Over the last decade,poly（vinylidene difluoride）（PVDF） has attracted much research interest owing to its potential applications as piezoelectric,pyroelectric and ferroelectric *** well investigated,this potentional was directly rendered by the specific distribution of crystal *** one of the polymers with copious polymorphs,PVDF is able to crystallize in five different forms,which involve three different chain conformations, namely,TTTT forβphase,TGTG’ forαandδphases,TTTGTTTG’ forγandεphases.

关键词：