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Search Results: 1 - 10 of 294607 matches for " <br>戴景程 "
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Pathogen conservation molecules and PAMP-triggered innate immunity in plants
病原菌保守性特征分子及其介导的植物抗病性

Dai Jing-Cheng,Huang Jian-Guo,Wang Chun-Lian,Zhao Kai-Jun,<br>,黄建国,王春连,赵开军
微生物学通报 , 2012,
Abstract: Pathogen associated molecular patterns (PAMPs) recognized by host cell surface localized pattern-recognition receptors (PRRs) are pathogen conservation molecules. So far, a few pairs of characterized PRR/PAMP in plants provided useful models to study the specificity of ligand-binding and likely activation mechanisms. For example, recognition models of FLS2-flagellin, EFR-Tu (EF-Tu), CEBiP/CERK1-chitin and XA21-Ax21 have been extensively studied. The perception between PRR and PAMP triggers immune response (PTI) to resist pathogens. However, to successfully grow and proliferate on their hosts, virulent pathogens had to override the PTI, for which, these pathogens evolved a variety of strategies, such as injecting effector proteins into the plant cell or sequestering their PAMPs. Based on the knowledge on the interaction of PRR-PAMP, researchers are trying to engineer PRRs ( chimeras of PRRs) to develop new strategies in molecular breeding for achieving durability and a broad-spectrum disease resistance. We reviewed the recent findings about recognitions of PRRs-PAMPs, the engineered PRRs, and discussed the future prospects and several issues in researches on PTI.
Substrate Current and Hot-Carrier-Injection in High Voltage Asymmetrical n-Channel MOS Transistor Technology
高压单边器件的衬底电流再次升高和相关的热载流子注入效应

Dai Mingzhi,Liu Shaohu,Arthur Cheng,Li Hong,Andrew Yap,Wang Jun,Jiang Liu,Liao Kuanyang,<br>明志,刘韶华,,李虹,,王俊,江柳,廖宽仰
半导体学报 , 2008,
Abstract: The incorporation of high voltage transistors into the advanced VLSI chips has been limited by the reliability of the manufactured integrated circuits.As a monitor of hot-carrier-injection reliability,the substrate current(ISUB)usually increases in high voltage transistors,but has only one peak in standard low voltage transistors.Correspondingly,the mechanisms of the hot-carrier-injection effect in high voltage N-channel transistors should also be investigated.Based on the Poisson's equation,and simulation ...
Effects of structure parameters on the dispersion properties of dispersion compensation photonic crystal fiber
色散补偿光子晶体光纤结构参数对其色散的影响

Chen Xiang,Zhang Xin-Ben,Zhu Xian,Cheng Lan,Peng Jing-Gang,Dai Neng-Li,Li Hai-Qing,Li Jin-Yan,<br>陈翔,张心贲,祝贤,,,能利,李海清,李进延
物理学报 , 2013,
Abstract: 光子晶体光纤由于其灵活可调的色散特性用作色散补偿具有极大的应用潜力. 设计了一种色散补偿光子晶体光纤, 并运用频域有限差分法模拟了其色散特性,从理论上分析了其结构参数孔间距Λ和空气占空比d/Λ对该光子晶体光纤的色散系数的影响, 并且实际制备出了3种不同结构参数的光子晶体光纤. 通过对其色散曲线对比分析表明: 当光子晶体光纤孔间距在1 μm附近时, 其色散系数随着孔间距Λ和占空比d/Λ的增大而增加, 但对于孔间距Λ的变化比占空比d/Λ更为敏感, 并且随着孔间距Λ的增加,其对色散系数的影响能力逐渐减小. 设计并制备的光子晶体光纤在1550 nm处的色散系数为-241.5 ps·nm-1·km-1, 相对色散斜率为0.0018, 具有较好的色散补偿能力.
A New Species of Plagiogyria from Jiangxi
瘤足蕨属一新种

Cheng Jing-Fu,<br>
中国科学院研究生院学报 , 1988,
Abstract:
Amplified Fragment Length Polymorphism (AFLP) a New Molecular Marker
扩增片段长度多态性( AFLP) ——一种新的分子标记技术

WU Min-Sheng,DAI Jing-Rui,<br>吴敏生,
植物学报 , 1998,
Abstract: AFLP is a new technique for molecular marker. Compared with RFLP, RAPD, the great number of fragment can be visualized simultaneously by AFLP. Therefore, AFLP has been widely used in plant genetics and breeding since 1993. This paper describes the AFLP technique in detail and discusses the future application of the AFLP technique in plant genetics and breeding.
MULTI-WAVELENGTH PYROMETER AND ITS APPLICATIONS
多波长辐射测温仪及其应用

Dai Jingmin,Yang Maohu,Chu Zaixiang,<br>,杨茂华
红外与毫米波学报 , 1995,
Abstract: The latest achievements and status in Multi-Wavelength Pyrometer (MWP)have been reviewed. Its applications are introduced,too.
Research and application of anonymous identity authentication between TPMs
TPM匿名认证机制的研究与应用

LIU Jing-sen,DAI Guan-zhong,<br>刘,冠中
计算机应用研究 , 2007,
Abstract: This paper analyzed the implementation of anonymity in the TPM authentication schemes.By modifying the direct anonymous attestation(DAA)scheme,proposed a design scheme for trusted on-line service systems called TOSS.Comparing to the traditional systems,this system is based on user levels.As it supports anonymous access,hierarchical service and peri- odic control,TOSS provides better security and service evolution function.
An Anonymous Authentication Method for Toll Personalized Service
一种面向付费个性化服务的匿名认证方案

LIU Jing-Sen,DAI Guan-Zhong,<br>刘,冠中
计算机科学 , 2008,
Abstract: 个性化服务系统为每个用户提供了满足个性化需求的差异服务,但用户模型的建立和更新依赖于用户的个人信息,存在着隐私泄漏的风险,从而降低了用户使用个性化服务的意愿.本文基于可信计算环境下直接匿名证言方案的可变假名机制,设计了一个面向通用网络环境下个性化服务的匿名认证方案,并针对付费系统的匿名保持问题做了进一步改进.理论分析和实验结果表明,个性化服务提供者可以鉴别用户是否合法付费用户,并具有何种访问权限,但无法确定用户的具体身份,即使服务提供者将访问信息泄漏,也不会危及用户隐私.
Method -Technique of Geometric Stability Framed Constitute Analysis in Plane system
平面体系几何组成分析的方法技巧

QIU Xiumei,DAI Jingjun,SUN Jiancheng,<br>邱秀梅,,孙建武
力学与实践 , 2009,
Abstract: 平面体系几何组成分析是结构力学课程的准点和重点内容之一.在系统学习本章理论的基础上掌握题目分析的方法技巧是学好本章的瓶颈所在.根据多年教学经验,分析、综合各种类型题目,总结提炼出平面体系几何组成分析题目的方法技巧,并辅以例题具体说明,对学生掌握好本章内容具有指导意义.
Local boundary integral equation method based on radial basis functions for potential problems
势问题的径向基函数——局部边界积分方程方法

Dai Bao-Dong,Cheng Yu-Min,<br>保东,玉民
物理学报 , 2007,
Abstract: Combining the interpolation function, which has the delta function property and is constructed on the basis of radial basis functions and polynomial functions, using the local boundary integral equation method (LBIE), the local boundary integral equation method based on radial basis functions is presented for potential problem in this paper. The corresponding discrete equations are obtained. Comparing with the other meshless boundary integral equation methods, the present method has simpler numerical procedures, lower computation cost and higher accuracy. In addition, the essential boundary conditions can be implemented directly. Some numerical results to show the efficiency of the present method are given.
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