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A Local Nontexture Image Inpainting and Denoising Based on Nonlinear PDEs

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A Local Nontexture Image Inpainting and Denoising Based on N...

第七届国际信号处理会议

作者： FU Shu-Jun1 2.RUAN Qiu-Qi1 (1.Institute of Informatoin Science beijing Jiaotong University beijing 100044 {2.) (2.school of Mathematics and System Science Shandong University Jinan 2.0100 {2.)

Image inpainting is an interpolation which guesses and fills in an imformation-losing portion according to its sur- roundings. Image inpainting belongs to the category of image restoration and reco

关键词： image processing image inpainting image de- noising partial differential equations

Statistical characteristics of gravity wave activities observed by an OH airglow imager at Xinglong, in northern china

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Statistical characteristics of gravity wave activities obser...

第十四届全国日地空间物理学术研讨会

作者： Q. Li1,2.J. Xu1 J. Yue3 W. Yuan1 and X. Liu1,4 (1 State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese academy of sciences, {2. 100190, china ) (2.graduate University of the Chinese academy of sciences, {2. 100049, china ) (3 High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO 80307, USA ) (4 College of Mathematics and Information Science, Henan Normal University, Xinxiang, china )

An all-sky airglow imager （ASAI） was installed at Xinglong, in northern china （40.2.N, 117.4oE） in November 2.09 to study the morphology of atmospheric gravity waves （AGWs） in the mesosphere and lower thermosphere （MLT） region. Using one year of OH airglow imager data from December 2.09 to November 2.10, the characteristics of short-period AGWs are investigated and a yearlong AGW climatology in northern china is first ever reported. AGW occurrence frequency in summer and winter is higher than that in equinoctial months. Observed bands mainly have horizontal wavelengths from 10 to 35 km, observed periods from 4 to 14 min and observed horizontal phase speeds in the range of 30 to 60 m/s. Most of the bands propagate in the meridional direction. The propagation directions of the bands show a strong southwestward preference in winter, while almost all bands propagate northeastward in summer. Although the wind filtering in the middle atmosphere may control AGW propagations in the zonal direction, the non-uniform distribution of wave sources in the lower atmosphere may contribute to the anisotropy in the meridional direction in different seasons. Additionally, as an indication of local instability, the characteristics of ripples are also analyzed. It also shows seasonal variations, occurring more often in summer and winter and mainly moving westward in summer and eastward in winter.

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Advances in Research on Vegetative Incompatibility in Fungi

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食用菌学报 2007年第1期 78-84页

作者： CHEN Qiang1,LI Cuixin1, 2.LI Huiping1,ZHANG Jinxia11Institute of Agricultural Resources and Regional Planning, CAAS, beijing 100081,china 2.2. of Natural Resources, Southwest Forestry University, Kunming,Yunnan 6502.4,china

Recent progress in the research techniques applied to the study of vegetative incompatibility in fungi, and the genetic basis and applications of the phenomenon, have been summarized. The role of heterokaryon incompatibility (het) loci in controlling vegetative incompatibility has been described, and the accuracy of using vegetative incompatibility to discriminate between fungal strains discussed.

关键词： Fungi Genetic basis Heterokaryon incompatibility (het) loci Vegetative incompatibility

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{2. 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

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Visionary Management:Footstone of Sustained Firm Growth

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Visionary Management:Footstone of Sustained Firm Growth

第四届电子商务国际会议

作者： Libing Shu~1 Shenghua Jia~1 Lei Peng~2.~1school of Management Zhejiang University Hangzhou 31002. ~2.1} Institute of World Economics and Politics CASS {2. 100102.china

＜正＞ As an important discipline of the learning organization, vision provides guidance about what core to preserve and what future to stimulate progress toward. It had been proved by the experiences of foreign companies’ successful practice that visionary management was an actually new managerial philosophy and tool after the corporation reengineering theory to support sustained firm growth. It should be worthy our stated-owned enterprises and short-life’s to learn and practice.

关键词： vision visionary management performance sustained firm growth

Thiopentone-induced insulin secretion via activation of IP3-sensitive calcium stores in rat pancreatic beta cells

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Thiopentone-induced insulin secretion via activation of IP3-...

中国生理学会第2.届全国会员代表大会暨生理学学术大会

作者： Xiao YU~1,Yun-Fei XU~1,Zhuan ZHOU~2.1 Department of Physiology,Shandong University school of Medicine,Jinan 2.0012.china 2.Institute of Molecular Medicine,Peking University,{2. 100871,china

Although glucose-elicited insulin secretion depends on Ca entry through voltage-gated Ca channels in the cell membrane of pancreatic beta cells,there are also ample evidence for an important role of intracellular Ca stores,particularly in relation to biochemical *** report here that thiopentone stimulates insulin secretion from cultured primary rat pancreatic beta cells,and the mechanisms were investigated by measurements of whole-cell K and Ca currents,membrane potential,the cytoplasmic Ca concentration([Ca];) and membrane capacitance. Thiopentone(300μmol/L) reduces both whole-cell K currents and Ca currents to 60%,while it only depolarizes beta cell membrane potential in 2.%pancreatic beta *** the meantime,the anesthetic evokes[Ca] increase in beta cells in the presence or absence of extracellular *** data indicate that thiopentone-induced insulin release occurs by mechanisms that are independent of Ca entry across the cell *** thiopentone-induced [Ca] rise in cultured rat beta cells is sensitive to heparin(0.1 mg/mL),a drug that inhibits the binding of IP3 and IP3 receptor;thapsigargin(1μmol/L),a blocker of the endoplasmic reticulum(ER) Ca pump;and U7312.,a PLC *** conclude that the[Ca];required for thiopentone-induced insulin secretion is released from IP3-sensitive Ca store.

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黄河流域坡高地系统最小生态需水研究

山地学报 2004年第2期22卷 154-160页

作者：张远杨志峰北京师范大学环境学院北京师范大学环境学院水环境模拟国家重点实验室水沙科学教育部重点实验室北京 100875 中国环境科学研究院北京 100012水环境模拟国家重点实验室水沙科学教育部重点实验室北京 100875

以保护和恢复流域坡高地生态系统为目的,对坡高地最小生态需水问题进行研究,提出了坡高地生态需水和生态缺水的计算方法。以黄河流域为实例,在GIS和遥感技术支持下对坡高地最小生态需水量和缺水量进行了计算,并从时空两个尺度揭示了黄... 详细信息

以保护和恢复流域坡高地生态系统为目的,对坡高地最小生态需水问题进行研究,提出了坡高地生态需水和生态缺水的计算方法。以黄河流域为实例,在GIS和遥感技术支持下对坡高地最小生态需水量和缺水量进行了计算,并从时空两个尺度揭示了黄河流域坡高地生态系统最小生态需水的变化规律,研究成果可为流域生态环境建设和水资源合理配置提供依据。

关键词：生态需水坡高地系统时空变化黄河流域

Reliability Analysis of Underground Pipelines Subject to Disturbance of Shield Tunnel Excavation

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Reliability Analysis of Underground Pipelines Subject to Dis...

第一届交通运输工程国际学术会议

作者： ZHANG Qiang1, YANG Cheng-yong2. CHENG Qian-feng1 1school of Civil Engineering and Architecture, beijing Jiaotong University, beijing 100044, china 2.unnel and Underground Engineering Research Center of Ministry of Education, beijing Jiaotong University, beijing 100044, china

Tunnel excavation disturbs surrounding soil, cause deformation and displacement of the soil, and can result in a change of loads and constraints exerted on the pipelines in the vicinity of the tunnel. The internal forces of the pipelines will accordingly redistribute. Therefore, the safety level of the pipelines will change, mostly to decrease. In this paper, two types of pipelines, rigid pipeline and flexible one, are discussed. Then formulae which link the maximum ground subsidence with the deformation of a pipeline are derived under shield tunnel excavation. In consideration of the uncertainties in the parameters of the formulae, a probabilistic analysis on the safety of pipeline is conducted, according to the control criterion of both rigid and flexible pipelines. Finally, a case study is conducted to demonstrate the applicability of this method. This paper presents a convenient method to determine the safety of underground pipeline through the measurement of ground subsidence occurring during tunnel excavation.

关键词： underground pipeline tunnel excavation ground subsidence reliability

Systematic Method of Applying Structural Characteristics of Natural Organisms to Mechanical Structures

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Transactions of Tianjin University 2011年第4期17卷 293-297页

作者：行登海陈五一 school of Mechanical Engineering and Automation Beihang University

Structural bionic design lacks mature and scientific theories, and the excellent structural characteristics of natural organisms sometimes cannot be transferred into engineering structures effectively. Aiming at overcoming the existing problems, this paper summarizes three related theories: similarity theory, fuzzy evaluation theory and optimization theory. Based on the related theories, a method of structural bionic design is introduced, which includes four steps: selecting the most useful structural characteristic of natural organism; analyzing the structural characteristic finally chosen for engineering problem; completing the structural bionic design for engineering structure; and verifying the structural bionic design. Similarity theory and fuzzy evaluation theory are employed to achieve Step 1. In Step 2.and Step 3, optimization theory is employed to analyze the parameters of structures. Together with the thoughts of simplification and grouping, optimization theory can reveal the relationship between organism structure and engineering structure, providing a way to structural bionic design. A general evaluation criterion is proposed in Step 4, which is feasible to evaluate the performance of different structures. Finally, based on the method, a structural bionic design of thin-walled cylindrical shell is introduced.

关键词： structural bionic design similarity theory fuzzy evaluation optimization evaluation criterion

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