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魏晋封建主张及相关问题考述

武汉大学学报（人文科学版） 2004年第2期57卷 163-169页

作者：鲁力华南师范大学人文学院广东广州510631

自汉武帝限制封国势力以来 ,最早对西周封建表示肯定的是东汉末年的司马朗。不久 ,董昭又提出“修古建封五等” ,但其真正目的在于突破汉代异姓只能封侯的限制 ,为曹氏代汉铺平道路。直到曹魏后期 ,随着门阀势力的膨胀 ,才有人主张从藩... 详细信息

自汉武帝限制封国势力以来 ,最早对西周封建表示肯定的是东汉末年的司马朗。不久 ,董昭又提出“修古建封五等” ,但其真正目的在于突破汉代异姓只能封侯的限制 ,为曹氏代汉铺平道路。直到曹魏后期 ,随着门阀势力的膨胀 ,才有人主张从藩屏王室的意义上实行封建。受这些议论的影响 ,司马氏在禅魏前后进行了三次分封。但这些分封最终并没有起到藩屏的作用 ,主要原因是分封制与现行的郡县制和都督制有着深刻的矛盾 ,难以彻底实行。真正加强宗室力量的措施 ,正如唐长孺先生所指出的。

关键词：魏晋时期封建主张分封制郡县制都督制宗王出镇制五等

Dynamics-Based Topology Identification of Complex Networks

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Dynamics-Based Topology Identification of Complex Networks

2009年第五届全国网络科学论坛

作者： Zhigang Zheng Department of Physics beijing normal university CCAST,beijing

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学习不良儿童社会性发展特点的研究

心理科学 1997年第1期20卷 31-35,95页

作者：俞国良北京师范大学发展心理研究所

对211名10—15岁学习不良儿童社会性发展特点的研究表明，学习不良儿童在本研究确定的社会交往、自我概念和行为问题诸维度上具有独特的年龄和性别特点。学习不良女孩的社会性发展水平略高于学习不良男孩；随年龄递增．学习不良儿童的... 详细信息

对211名10—15岁学习不良儿童社会性发展特点的研究表明，学习不良儿童在本研究确定的社会交往、自我概念和行为问题诸维度上具有独特的年龄和性别特点。学习不良女孩的社会性发展水平略高于学习不良男孩；随年龄递增．学习不良儿童的社会性发展水平不断得到提高，但其在不同年龄阶段的特点则有所不同。同时．学习不良儿童社会性发展诸方面存在着交互作用。

关键词：学习不良儿童社会交往自我概念行为问题

基于GIS的喀斯特流域石漠化综合防治探讨——以贵州织金县洗马河流域为例

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水土保持研究 2007年第5期14卷 264-266页

作者：周忠发贵州师范大学地理与生物科学学院

喀斯特石漠化是在喀斯特脆弱生态环境下,人类不合理的社会经济活动,造成植被破坏、水土流失、岩石逐渐裸露、土地生产力衰退丧失的演变过程,严重制约了区域社会经济的可持续发展。洗马河流域是织金洞国家级重点风景名胜区核心主成部分,... 详细信息

喀斯特石漠化是在喀斯特脆弱生态环境下,人类不合理的社会经济活动,造成植被破坏、水土流失、岩石逐渐裸露、土地生产力衰退丧失的演变过程,严重制约了区域社会经济的可持续发展。洗马河流域是织金洞国家级重点风景名胜区核心主成部分,主要岩性为灰岩和白云岩,喀斯特十分发育,是典型的石漠化区域,占流域面积近70%,人地矛盾十分突出。项目通过GIS与遥感技术为手段,进行石漠化调查和防治工程的布置,从而达到对该流域的石漠化防治,挽救该区域人类生存条件、防治水土流失、对国家重点风景名胜区的保护,同时对其它喀斯特区域石漠化的综合防治起着示范作用。

关键词：地理信息系统喀斯特石漠化国家风景名胜区综合防治工程

Guest Editorial for Special Issue on Human-centered Intelligent Robots:Issues and Challenges

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IEEE/CAA Journal of Automatica Sinica 2017年第4期4卷 599-601页

作者： Zhijun Li C.L.Philip Chen Wei He IEEE College of Automation Science and Engineering South China University of Technology Department of Computer and Information Science Faculty of Science and Technology University of Macao school of Automation and Electrical Engineering University of Science and Technology Beijing

The special issue aims to address a broad spectrum of topics ranging from human-centered intelligent robots acting as a servant,secretary,or companion to intelligent robotic *** special issue publishes original papers of innovative ideas and concepts,new discoveries,and novel applications and business models relevant to the field of human-centered intelligent *** this special issue,modeling,intelligent control,

关键词： In Guest Editorial for Special Issue on Human-centered Intelligent Robots:Issues and Challenges

Redistribution of Pb, Zn and Cu Fractions in Tailing Soils Treated with Different Extractants

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Pedosphere 2006年第3期16卷 312-318页

作者： LIU Yun-Guo WANG Xian-Hai ZENG Guang-Ming LI Xin ZHOU Chun-Hua FAN Ting LI Yong-Li YUAN Xin-Zhong Department of Environmental Science and Engineering Hunan University Changsha 410082 （China） Institute of Applied Ecology Chinese Academy of Sciences Shenyang 110016 （China） Graduate school of Chinese Academy of sciences Beijing 100039 （China）

The efficiency of EDTA, HNO3 and CaCl2 as extractants to remove Pb, Zn and Cu from tailing soils without varying soil pH was investigated with distributions of Pb, Zn and Cu being determined before and after extraction using the sequential extraction procedure of the optimized European Community Bureau of Reference (BCR). Results indicated that EDTA and HNO3 were both effective extracting *** extractability of extractants for Pb and Zn was in the order EDTA > HNO3 > CaCl2, while for Cu it was HNO3 > EDTA > CaCl2. After EDTA extraction, the proportion of Pb, Zn and Cu in the four fractions varied greatly, which was related to the strong extraction and complexation ability. Before and after extraction with HNO3 and CaCl2, the percentages of Pb, Zn and Cu in the reducible, oxidizable and residual fractions changed little compared to the acid-extractable fraction. The lability of metal in the soil and the kinds of extractants were the factors controlling the effects of metal extraction.

关键词： BCR extraction fraction heavy metals redistribution

First principles calculations of electronic properties and mechanical properties of bcc molybdenum and niobium

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First principles calculations of electronic properties and m...

第十一届国际材联亚洲材料大会

作者： LIU Zenghui,and SHANG Jiaxiang school of Materials Science and Engineering,beijing university of Aeronautics & Astronautics,beijing 100191,china

The first principles calculations based on the density functional theory are performed to study the elastic properties and mechanical properties on Mo and *** is found that the C,Cand Cof metal Mo and the Cand Cof Nb are consistent with that of the experimental value and other calculated ***,Cof Nb is *** order to probe the reason why the Cwould be underestimated by theoretical calculation,we calculated the density of sated and Fermi surface of metal Nb and *** is found that the most probable reason of underestimate Cis related to the nesting properties of the Fermi surface which produce a Van Hove singularity in the electronic density of the state closed to the Fermi *** ideal tensile strengths along[111]direction of bcc Mo and Nb is *** is found that both materials exhibit dissimilar mechanical behaviors:the stress of Nb exists a turning point at the strain 8%,which is different from the behavior of Mo.

关键词： elastic constants first-principle Nb and Mo ideal tensile strength

Quantitative Interpretation for the Magnetic Flux Leakage Testing Data Based on Neural Network

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武汉理工大学学报 2006年第S2期28卷 443-447页

作者： SONG Xiaochun~(1.2) HUANG Songling~1 ZHAO Wei~1 1.State Key Lab of Power Systems,Dept.of Electrical Engineering,Tsinghna university,beijing 100084,china 2.school of Mechanical Engineering,Hubei university of Technology,Wuhan 430068,china State Key Lab of Power Systems Dept.of Electrical EngineeringTsinghua UniversityBeijing 100084China school of Mechanical Engineering Hubei University of TechnologyWuhan 430068China State Key Lab of Power Systems Dept.of Electrical EngineeringTsinghua UniversityBeijing 100084China

In order to interpret the magnetic flux leakage (MFL) testing data quantitatively and size the defects accurately, some defect profiles inversion methods from the MFL signals are studied on the basis of the neural *** the wavelet ba- sis function neural network (WBFNN) has good accuracy in the forward calculation and the radial basis function neural network (RBFNN) has reliable precision in the inversion modeling respectively,a new neural network scheme combining WBFNN and RBFNN is presented to solve the nonlinear inversion problem for the MFL data and reconstruct the defect *** such details as the choice of wavelet basis function,the initialization of the weight value and the input normalization are analyzed,the train- ing and testing algorithm for the network are also *** inversion results demonstrate that the proposed network scheme has good reliability to interpret the MFL data for some defects.

关键词： neural networks magnetic flux leakage(MFL) quantitative interpretation nondestructive testing

Pricing Reset Options with Multiple Reset Features under Stochastic Interest Rate and Jump Diffusion Model

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Pricing Reset Options with Multiple Reset Features under Sto...

第二十九届中国控制会议

作者： DENG Guohe school of Mathematics,Guangxi normal university,Guilin 541004,P.R.china

The price for the reset option with multiple strike resets and reset dates when the risky asset follows a jump-diffusion model and interest rate satisfies Vasicek term structure framework is *** first obtain closed-form solution for the reset option by applying the change of ***,we investigate the results of numerical evaluations of the reset option prices and show how they vary with both jump risks and the numbers of reset dates through numerical *** results show that the jumps risks can significantly affect the reset option values,and ignoring the jump risks may lead to serious biases in pricing option.

关键词： Jump Diffusion Model Reset Option Stochastic Interest Rate Multiple Reset Features