检索结果-南通市图书馆

2.09整合植物生物学研讨会

作者： Hongxing Xu~(1*),Dongdong Yin~(1*),Lihui Li~(2.*),Qiuxia Wang~2.Xiuquan Li~2.Weihua Liu~2. Xinming Yang~2.and Diaoguo An~(1**) 1 Center for Agricultural Resources Research,institute of Genetics and Developmental Biology,chinese {2. of sciences,Shijiazhuang 05002.,China 2.institute of Crop Science,chinese {2. of Agricultural sciences,beijing 100081,China.

Rye(Secale cereale L.)genome carries abundant advantageous genes for wheat genetic *** to cytogenetic characterization,chromosome specific markers are more convenient and quick methods to identify the transfer of rye chromosome to common wheat(Triticum aestivum L.).Recently,more and more expressed sequence tag(EST)

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

蜜环菌菌丝体中倍半萜醇芳香酸酯的质谱研究

化学学报 1988年第11期46卷 1093-1100页

作者：杨峻山丛浦珠中国医学科学院药物研究所北京中国医学科学院药用植物资源开发研究所北京

本文报道从蜜环菌(Armillaria mellea)菌丝体分离出的五个倍半萜醇芳香酸酯、即蜜环菌戊素(melleolide,1)蜜环菌甲素(armillarin,2.,蜜环菌乙素(armillaridin,3)蜜环菌丁素(armillaribin,4)和蜜环菌丙素(armillaricin,5)的质谱裂解方式... 详细信息

关键词：蜜环菌化合物倍半萜醇相对强度芳香酸榛蘑菌丝体离子

维普期刊数据库

Generalized Projective Synchronization Between Rssler System and New Unified Chaotic System

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2007年第7期 132-136页

作者： LI Xin CHEN Yong1 Nonlinear Science Center and Department of Mathematics,Ningbo University,Ningbo 3152.1,China2.institute of Theoretical Computing,East China Normal University,Shanghai 2.0062.China3 Key Laboratory of Mathematics and Mechanization,the chinese academy of sciences,{2. 100080,China

Based on symbolic computation system Maple and Lyapunov stability theory,an active control method isused to projectively synchronize two different chaotic systems—Lorenz-Chen-Lü system(LCL)and Rssler system,which belong to different dynamic *** this paper,we achieve generalized projective synchronization between thetwo different chaotic systems by directing the scaling factor onto the desired value *** illustrate our result,numerical simulations are used to perform the process of the synchronization and successfully put the orbits of drivesystem(LCL)and orbits of the response system(Rssler system)in the same plot for understanding intuitively.

关键词： Rssler system Lorenz-Chen-Lü system generalized projective synchronization scaling factor active control

维普期刊数据库

Fuzzy Adaptive Kalman Filter Algorithm for RUAV's Integrated Navigation System

在线全文

学校读者我要写书评

暂无评论

Fuzzy Adaptive Kalman Filter Algorithm for RUAV's Integrated...

BASIC THEORY OF SALINE INTRUSION AND ITS APPLICATION TO PREDICTION OF INTRUSION DEVELOPMENT

第2.届中国控制与决策会议

作者： Lei Dai 1,2., Chong Wu 1,2., Juntong Qi 1 , Janda Han 1 1. State Key Laboratory of Robotics, Shenyang institute of Automation, chinese academy of sciences, Shenyang 110016 China 2. Graduate School of the chinese academy of sciences, beijing 100049 China

The Kalman filter has characteristics of the noise-sensitive. This paper analyzes the adaptive Kalman filter algorithms which are based on Sage-Husae, neural network and fuzzy logic method. And an adaptive Kalman filter based on fuzzy logic is designed to estimate the attitude, heading and velocity of the RUAV. Combining the characteristics of RUAV platform and analyzing the real flight data, the fuzzy inference rules are designed to change the filtering parameters. With the actual flight data, the simulation verifies the validity of this algorithm. The experiments prove that this method can improve the navigation precision of RUAV.

关键词： Integrated Navigation Adaptive Kalman Filter Fuzzy Logic

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Scientia Geologica Sinica 1998年第1期 98-102页

作者： Cai Zuhuang and Ma Fengshaninstitute of geology,{2., beijing 10002.Song WeihuaWater Conservancy Bureau of Guangrao county, Shandong province, Guangrao 2.7300

ＢＡＳＩＣＴＨＥＯＲＹＯＦＳＡＬＩＮＥＩＮＴＲＵＳＩＯＮＡＮＤＩＴＳＡＰＰＬＩＣＡＴＩＯＮＴＯＰＲＥＤＩＣＴＩＯＮＯＦＩＮＴＲＵＳＩＯＮＤＥＶＥＬＯＰＭＥＮＴＣａｉＺｕｈｕａｎｇａｎｄＭａＦｅｎｇｓｈａｎＩｎｓｔｉ... 详细信息

ＢＡＳＩＣＴＨＥＯＲＹＯＦＳＡＬＩＮＥＩＮＴＲＵＳＩＯＮＡＮＤＩＴＳＡＰＰＬＩＣＡＴＩＯＮＴＯＰＲＥＤＩＣＴＩＯＮＯＦＩＮＴＲＵＳＩＯＮＤＥＶＥＬＯＰＭＥＮＴＣａｉＺｕｈｕａｎｇａｎｄＭａＦｅｎｇｓｈａｎＩｎｓｔｉｔｕｔｅｏｆＧｅｏｌｏｇｙ，Ｃｈｉ...

关键词： BASIC THEORY APPLICATION ITS AND

EFFECT OF CRACK CLOSURE ON SLOW PROPAGATION IN DUAL-PHASE STEEL

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Acta Metallurgica Sinica(English Letters) 1990年第6期3卷 424-428页

作者： DENG Rongying YE Zhijun institute of Mechanics,Academia Sinica,beijing,China LIU Shuhua ZOU Dingqiang China {2. of Railway sciences,beijing,China institute of Mechanics,Academia Sinica,beijing 100080,China

The effect of ferrite content in ferrite-martensite dual-phase steel on the initiation and prop- agation of fatigue crack and the plastic deformation at crack tip has been *** the range of ferrite content from 2..2.to 41.5％,the optimum seems to be 33.8％,of which the crack ini- tiation will be prolonged,the threshold value increased,the propagation rate decreased and the closure stress intensity factor *** the propagation force is described by effective stress intensity factor,three steels with various ferrite contents will show the same propagation behaviour on da/dN vs △ K_(eff)*** is shown that the closure effect increases with the decrease in △K at the fatigue crack *** △K equals to △K_(th),the closure effect reaches a maximum value of0.7 in a dual-phase steel with 33.8％ferrite.

关键词： dual-phase steel crack closure slow propagation

维普期刊数据库

WEB GEOGRAPHIC INFORMATION SYSTEM

在线全文

学校读者我要写书评

暂无评论

Scientia Geologica Sinica 1997年第4期 67-74页

作者： Song Xianfeng The institute of Geography, chinese academy of sciences, {2. 100101 Tan Haiqiao China University of Mining and Technology, Xuzhou 2.1008

ＷＥＢＧＥＯＧＲＡＰＨＩＣＩＮＦＯＲＭＡＴＩＯＮＳＹＳＴＥＭＳｏｎｇＸｉａｎｆｅｎｇＴｈｅＩｎｓｔｉｔｕｔｅｏｆＧｅｏｇｒａｐｈｙ，ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉｅｎｃｅｓ，Ｂｅｉｊｉｎｇ１００１０１ＴａｎＨ...

ＷＥＢＧＥＯＧＲＡＰＨＩＣＩＮＦＯＲＭＡＴＩＯＮＳＹＳＴＥＭＳｏｎｇＸｉａｎｆｅｎｇＴｈｅＩｎｓｔｉｔｕｔｅｏｆＧｅｏｇｒａｐｈｙ，ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉｅｎｃｅｓ，Ｂｅｉｊｉｎｇ１００１０１ＴａｎＨａｉｑｉａｏＣｈｉｎａＵｎｉｖｅｒ...

关键词：

An adaptive hybrid optimizer based on particle swarm and differential evolution for global optimization

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China(Information sciences) 2010年第5期53卷 980-989页

作者： XIN Bin 1,2.? , CHEN Jie 1,2. , PENG ZhiHong 1,2.& PAN Feng 1,2.1 School of Automation, beijing institute of Technology, beijing 100081, China 2.Key Laboratory of Complex System Intelligent Control and Decision, Ministry of Education, beijing 100081, China 1. School of Automation Beijing Institute of Technology Beijing 100081 China2. Key Laboratory of Complex System Intelligent Control and Decision Ministry of Education Beijing 100081 China

This paper presents extensive experiments on a hybrid optimization algorithm (DEPSO) we recently developed by combining the advantages of two powerful population-based metaheuristics—differential evolution (DE) and particle swarm optimization (PSO). The hybrid optimizer achieves on-the-fly adaptation of evolution methods for individuals in a statistical learning way. Two primary parameters for the novel algorithm including its learning period and population size are empirically analyzed. The dynamics of the hybrid optimizer is revealed by tracking and analyzing the relative success ratio of PSO versus DE in the optimization of several typical problems. The comparison between the proposed DEPSO and its competitors involved in our previous research is enriched by using multiple rotated functions. Benchmark tests involving scalability test validate that the DEPSO is competent for the global optimization of numerical functions due to its high optimization quality and wide applicability.

关键词： global optimization statistical learning differential evolution particle swarm optimization hybridization adaptation rotated function

SITE OCCUPANCY OF IRON IN CLINTONITE BY MSBAUER EFFECT

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Scientia Geologica Sinica 1997年第4期 1-8页

作者： Xu Wendong, Ding Kuishou, Xu Ping, Song Renkui and Li Zhe institute of geology {2. academy of Since, beijing 10002. Wang Jianwei and Cao Zhengmin Department of geology beijing University, beijing 100871

ＳＩＴＥＯＣＣＵＰＡＮＣＹＯＦＩＲＯＮＩＮＣＬＩＮＴＯＮＩＴＥＢＹＭ¨ｏＳＢＡＵＥＲＥＦＦＥＣＴＸｕＷｅｎｄｏｎｇ，ＤｉｎｇＫｕｉｓｈｏｕ，ＸｕＰｉｎｇ，ＳｏｎｇＲｅｎｋｕｉａｎｄＬｉＺｈｅＩｎｓｔｉｔｕｔｅｏｆＧｅ... 详细信息

ＳＩＴＥＯＣＣＵＰＡＮＣＹＯＦＩＲＯＮＩＮＣＬＩＮＴＯＮＩＴＥＢＹＭ¨ｏＳＢＡＵＥＲＥＦＦＥＣＴＸｕＷｅｎｄｏｎｇ，ＤｉｎｇＫｕｉｓｈｏｕ，ＸｕＰｉｎｇ，ＳｏｎｇＲｅｎｋｕｉａｎｄＬｉＺｈｅＩｎｓｔｉｔｕｔｅｏｆＧｅｏｌｏｇｙＣｈｉｎｅｓｅＡｃａｄｅ...

关键词： SITE OCCUPANCY OF IRON CLINTONITE BY