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Comparison of the influence factors on NDVI for CCD camera and WFI imager on CBERS-02

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science China(Technological sciences) 2005年第S2期48卷 100-115页

作者： YU Tao1,3, LI Xiaoying1,2,3, ZHANG Yong1,2,3, ZHAO Feng1,2,3, GU Xingfa1,3,4, ZHU Li1,2,3, WANG Pengxin5 & MIN Xiangjun6 1. state key laboratory of Remote Sensing science Institute of Remote Sensing Application, CAS, Bei- jing 100101, China 2. graduate university of chinese academy of sciences, beijing 100039, China 3. The Center for National Spaceborne Demonstration, beijing 100101, China 4. Institut National de la Recherche Agronomique, Climat Sol Environnement, 84914 Avignon, France 5. College of information and Electrical Engineering, China Agricultural university, beijing 100083, China 6. China Center for Resource Satellite Data and Application, beijing 100830, China 1. state key laboratory of Remote Sensing science Institute of Remote Sensing Application CAS 100101 Beijing China 2. The Center for National Spaceborne Demonstration 100101 Beijing China 3. graduate university of chinese academy of sciences 100039 Beijing China 4. Institut National de la Recherche Agronomique Climat Sol Environnent 84914 Avignon France 5. College of information and Electrical Engineering China Agricultural University 100083 Beijing China 6. China Center for Resource Satellite Data and Application 100830 Beijing China

CCD and WFI are payloads in the visible light and near infrared bands on CBERS satellites and they have not been applied widely, especially WFI. This article mainly probes into the potential of these two sensors’ application in the vegetation monitoring and analyses the influences of radiometric calibration, atmosphere conditions and sun-observing geometry, etc. on NDVI obtained from these two sensors respectively. In addition it analyses the effect of the spectral response difference of red and near infrared spectral bands in CCD and WFI sensors on NDVI. Results indicate that radiometric calibration is the most important factor on NDVI, which cannot be applied to vegetation monitoring without radiometric calibration. Results also demonstrate that near surface NDVI is different greatly from that of TOA which change with atmosphere conditions. The study shows that NDVI is also affected by the non-lambertian character of surface and the change of the atmospheric path with the observing geometry. And NDVI of WFI is higher than that of CCD. They are very different because of their spectral difference, but they have a good linear relevant relationship.

关键词： CCD WFI NDVI LAI.

Risk Analysis on Groundwater Resources Carrying Capacity Based on Blind Number Theory

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Wuhan university Journal of Natural sciences 2007年第4期12卷 669-676页

作者： ZHANG Ji1,2,YU Sujun31. key laboratory of Mountain Hazards and Surface Process,chinese academy of sciences/Institute of Mountain Hazards and Environment,chinese academy of sciences,Chengdu 610041,Sichuan,China 2. graduate university of the chinese academy of sciences,beijing 100049,China 3. School of Environmental science and Engineering,Southwest Jiaotong university,Chengdu 610041,Sichuan,China key laboratory of Mountain Hazards and Surface Process Chinese Academy ofSciences/Institute of Mountain Hazards and Environment Chinese Academy of Sciences Chengdu 610041Sichuan China

Blind numbers of evaluation indices about groundwater resources carrying capacity are defined from the concomitancy of randomness, fuzziness, grey property and unascertainment of groundwater system. Based on fuzzy theory, a comprehensive evaluation model on groundwater resources carrying capacity is constructed with blind information. Then a risk assessment model of surcharge about groundwater resources carrying capacity is established on blind reliability theory. The probable value ＂＊＂ matrix of fuzzy membership degree about carrying capacity corresponding to each judgment level can be obtained with the aid of blind algorithm as well as the subjective reliability ＂×＂ matrix. And then a graph of ＂groundwater carrying capacity v.s. accumulative reliability＂ can be gained Based on the graph, fuzzy membership degree of groundwater resources carrying capacity to each judgment level under different risk probability can be got. Thus, a comparatively reasonable judgment to groundwater resources carrying capacity might be obtained, with comprehensive analysis to the state of society, economy technology and ecology.

关键词： blind number theory groundwater resources carrying capacity evaluation risk analysis

Construction of Resilient Functions

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Construction of Resilient Functions

The 1st chinese Conference on Trusted Computing and information security

作者： ZHANG Jie, WEN Qiao-yan School of science, beijing university of Posts and Telecommunications , beijing 100876, China state key laboratory of information security, chinese academy of sciences, beijing 100039, China

＜正＞ Based on the relationship between nonlinearity and resiliency of a multi-output function, we present a methodfor constructing nonintersecting linear codes from packing design. Through these linear codes, we obtain n-variable, m-output, t-resilient functions with very high nonlinearity. Their nonlinearities are currently the best results for most of

关键词： resilient functions packing design correlation-immune functions linear codes

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半Bent函数的密码学特性

山东大学学报（理学版） 2002年第6期37卷 480-483,512页

作者：秦静赵亚群山东大学数学与系统科学学院济南250100 中科院研究生院信息安全国家重点实验室北京100080

给出了半bent函数的定义与Walsh谱特征 ,并讨论了其密码学特性 .

关键词： bent函数半bent函数 Walsh循环谱自相关函数扩散准则

Sequencing,annotation and comparative analysis of nine BACs of the giant panda(Ailuropoda melanoleuca)

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science China(Life sciences) 2010年第1期53卷 107-111页

作者： ZHENG Yang1,2,3,CAI Jing4,LI JianWen3,6,LI Bo3,LIN RunMao3,TIAN Feng3,WANG XiaoLing3 & WANG Jun3,5 1beijing Institute of Genomics,chinese academy of sciences(CAS),beijing 100029,China 2College of Life science,graduate university of chinese academy of sciences,beijing 100049,China 3beijing Genomics Institute at Shenzhen,Shenzhen 518083,China 4CAS-Max Planck Junior Research Group on Evolutionary Genomics,state key laboratory of Genetic Resources and Evolution,Kunming Institute of Zoology,chinese academy of sciences(CAS),Kunming 650223,China 5Department of Biology,university of Copenhagen,Copenhagen DK-2200,Denmark 6School of Biological science and Engineering,South China university of Technology,Guangzhou 510006,China beijing Institute of Genomics Chinese Academy of Sciences (CAS) Beijing China College of Life science Graduate University of Chinese Academy of Sciences Beijing China beijing Genomics Institute at Shenzhen Shenzhen China CAS-Max Planck Junior Research Group on Evolutionary Genomics State Key Laboratory of Genetic Resources and Evolution Kunming Institute of Zoology Chinese Academy of Sciences (CAS) Kunming China School of Biological science and Engineering South China University of Technology Guangzhou China Department of Biology University of Copenhagen Copenhagen Denmark

A 10-fold BAC library for the giant panda was constructed and nine BACs were selected to generate finish *** BACs could be used as a validation resource for the de novo assembly accuracy of the whole genome shotgun sequencing reads of the giant panda newly generated by Illumina GA sequencing *** Sanger sequencing,assembly,annotation and comparative analysis were carried out on the selected BACs of a joint length 878 *** search and de novo prediction methods were used to annotate genes and *** protein coding genes were predicted,seven of which could be functionally *** seven genes have an average gene size of about 41 kb,an average coding size of about 1.2 kb and an average exon number of 6 per ***,seven tRNA genes were *** 27 percent of the BAC sequence is composed of repeats.A phylogenetic tree was constructed using a neighbor-join algorithm across five species,including the giant panda,human,dog,cat and mouse,which reconfirms dog as the most closely related species to the giant *** results provide detailed sequence and structure information for new genes and repeats of the giant panda,which will be helpful for further studies about the giant panda.

关键词： giant panda BAC sequencing assembly annotation evolution

CONTINUED FRACTION TACTICS FOR CRYPTANALYSIS

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Journal of Electronics(China) 1992年第3期9卷 193-199页

作者：李大兴李大为 Shandong university Jinan 250100 state key Lab.of information security graduate School of science and Technology of China Beijing 100039 Hangzhou Institute of Electronics Engineering Hangzhou 310037

The continued fraction tactics for cryptanalysis based on Legendre Theorem ofcontinued fraction are proposed.

关键词： Cryptanalysis Continued fraction Algorithm

SSRAN and PSRASP:Two Next Generation Sequencing Data Analysis Software

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SSRAN and PSRASP:Two Next Generation Sequencing Data Analysi...

第十二届全国植物基因组学大会

作者： Guanzheng Luo~1,Huajun Wu~(1,2),Yingke Ma~(1,2),Xiujie Wang~(1*) 1.state key laboratory of Plant Genomics,Institute of Genetics and Developmental Biology,chinese academy of sciences, beijing 100101,China 2.graduate university of the chinese academy of sciences,beijing 100101,China

The development and application of next generation sequencing technology have starting the transform biological science *** high-throughput nature of next-generation sequencing technology enables the production of gigabytes of short reads during one sequencing reaction,providing deep and digital information for the presence of DNA or RNA molecules in the studied *** date,bioinformatic tools to analyze such large amount of data are still in great *** we introduce two next generation sequencing data analysis software,SSRAN and PSRASP.

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基于移动代理的入侵检测系统模型的研究

通信学报 2004年第1期25卷 22-29页

作者：王汝传王华徐小龙南京邮电学院计算机科学与技术系

阐述了基于移动代理的入侵检测系统的优势,提出了一个使用移动代理技术的入侵检测系统MAAFID。首先由数据收集代理(DCA)在网络中随机移动并收集信息,然后将收集到的信息传递给数据分析代理(DAA)来评估入侵发生的可能性。本文重点讨论了... 详细信息

阐述了基于移动代理的入侵检测系统的优势,提出了一个使用移动代理技术的入侵检测系统MAAFID。首先由数据收集代理(DCA)在网络中随机移动并收集信息,然后将收集到的信息传递给数据分析代理(DAA)来评估入侵发生的可能性。本文重点讨论了系统中数据收集代理的数目与检测出入侵发生的可能性二者之间的定量关系,最后还给出了一个仿真结果。

关键词：入侵检测移动代理网络安全 MAAFID 数据收集代理数据分析代理

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一个基于数据挖掘的入侵检测系统模型

计算机科学 2003年第1期30卷 124-127页

作者：杨莘刘恒吕述望中科院研究生院信息安全国家重点实验室北京100039

Applying data mining technique to intrusion detection and building a relevant model is the hotpot of studycurrently. This paper presents a typical data mining based IDS model, including data gathering and selection, d... 详细信息

关键词：数据挖掘入侵检测系统模型网络攻击网络安全计算机网络信息安全