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并行鉴相测距激光雷达

实验科学与技术 2011年第5期9卷 29-30,38页

作者：邓志辉电子科技大学物理电子学院成都610054

介绍了基于相位法的测距方法,即方波与方波相关法。提出了测量方案和算法。并用Matlab的Simulink工具对测距原理进行了仿真,还对测距精度进行了分析。从理论上证明了此种相位法测距的可行性,为实际激光测距系统的研制奠定了基础。

关键词：激光雷达并行鉴相相位测距 Simulink仿真

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混合型多层基板的电磁兼容性研究

上海交通大学学报 2007年第S2期41卷 58-61页

作者：许海峰谢扩军朱琳杨先玮电子科技大学物理电子学院成都610054

混合型多芯片组件(MCM-C/D)是一种高级类型的多芯片组件,它具有非常好的电气性能.随着集成电路逐渐朝小型化、高密度、高速度方向发展,随之产生的互连线间的电磁干扰和信号延迟问题日趋严重,很大程度上制约了多芯片组件的快速发展.通过... 详细信息

混合型多芯片组件(MCM-C/D)是一种高级类型的多芯片组件,它具有非常好的电气性能.随着集成电路逐渐朝小型化、高密度、高速度方向发展,随之产生的互连线间的电磁干扰和信号延迟问题日趋严重,很大程度上制约了多芯片组件的快速发展.通过建立MCM-C/D的封装模型,依靠CST微波仿真软件来研究信号线间的电磁干扰,通过分析仿真结果来优化基板的布局和电路走线.

关键词：混合型多芯片组件聚酰亚胺印刷电路板电磁兼容掩埋微带线

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鬼臼类植物产鬼臼毒素内生真菌的筛选

天然产物研究与开发 2003年第5期15卷 419-422页

作者：杨显志郭仕平张玲琪邵华电子科技大学物理电子学院成都610054 云南大学生命科学学院昆明650091

从桃儿七(Sinopodophyllum hexandrum)、南方山荷叶(Diphylleia sinensis)和川八角莲(Dysos-ma veitchii)中分离到92株内生真菌,其发酵提取物经TLC、HPLC分析,结果表明,6株内生真菌能产鬼臼毒素,占总分离菌株数的6.5％。桃儿七、南方山... 详细信息

从桃儿七(Sinopodophyllum hexandrum)、南方山荷叶(Diphylleia sinensis)和川八角莲(Dysos-ma veitchii)中分离到92株内生真菌,其发酵提取物经TLC、HPLC分析,结果表明,6株内生真菌能产鬼臼毒素,占总分离菌株数的6.5％。桃儿七、南方山荷叶和川八角莲内生真菌中产鬼臼毒素菌株占各供测菌株的7％,3％和10％。

关键词：桃儿七南方山荷叶川八角莲内生真菌鬼臼毒素

Comparative Study on Inorganic Composition and Crystallographic Properties of Cortical and Cancellous Bone

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Biomedical and Environmental sciences 2010年第6期23卷 473-480页

作者： XIAO-YAN WANG,YI ZUO,DI HUANG,XIAN-DENG HOU,AND YU-BAO LI 2 research center for Nano-Biomaterials Analysis and Testing,Sichuan university,chengdu 610064,Sichuan,china [a] research center for Nano-Biomaterials Analysis Testing Sichuan University Chengdu 610064 Sichuan China

Objective To comparatively investigate the inorganic composition and crystallographic properties of cortical and cancellous bone via thermal treatment under 700 ℃. Methods Thermogravimetric measurement, infrared spectrometer, X-ray diffraction, chemical analysis and X-ray photo-electron spectrometer were used to test the physical and chemical properties of cortical and cancellous bone at room temperature 250 ℃, 450 ℃, and 650 ℃, respectively. Results The process of heat treatment induced an extension in the a-lattice parameter and changes of the c-lattice parameter, and an increase in the crystallinity reflecting lattice rearrangement after release of lattice carbonate and possible lattice water. The mineral content in cortical and cancellous bone was 73.2wt% and 71.5wt%, respectively. For cortical bone, the weight loss was 6.7% at the temperature from 60 ℃ to 250℃, 17.4% from 250 ℃ to 450 ℃, and 2.7% from 450 ℃ to 700 ℃. While the weight loss for the cancellous bone was 5.8%, 19.9%, and 2.8 % at each temperature range, the Ca/P ratio of cortical bone was 1.69 which is higher than the 1.67 of stoichiometric HA due to the B-type CO32- substitution in apatite lattice. The CaJP ratio of cancellous bone was lower than 1.67, suggesting the presence of more calcium deficient apatite. Conclusion The collagen fibers of cortical bone were arrayed more orderly than those of cancellous bone, while their mineralized fibers ollkded similar. The minerals in both cortical and cancellous bone are composed of poorly crystallized nano-size apatite crystals with lattice carbonate and possible lattice water. The process of heat treatment induces a change of the lattice parameter, resulting in lattice rearrangement after the release of lattice carbonate and lattice water and causing an increase in crystal size and crystallinity. This finding is helpful for future biomaterial design, preparation and application.

关键词： Cortical bone Cancellous bone Bone mineral Composition Crystallographic property

Effect of exciting frequency and power on nonuniformity in capacitively coupled plasma

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Effect of exciting frequency and power on nonuniformity in c...

第三届微电子及等离子体技术国际会议

作者： Xiao-Jiang Huang1 2 Jianjun Shi1 2 Yu Xin3) and Zhao-Yuan Ning3) 1 college of science Donghua university Shanghai 201620 People’s Republic of china 2 Member of magnetic confinement fusion research center Ministry of Education of the People’s Republic of china Shanghai 201620 People’s Republic of china 3 Jiangsu Key Laboratory of Thin Films School of physical science and Technology Soochow university Suzhou 215006 china

The plasma nonuniformity is study by using optical emission spectroscopy（OES） to measure the intensity profiles of Ar line（750.4nm） along the vertical and radial axes in 2MHz,13.56MHz and 41MHz *** raw radial intensity was transformed into the actual local radiation intensity by Able *** effect of exciting frequency and power on nonuniformities in plasmas was *** is found that plasma is approximate uniformity from center to about 0.8R,and nonuniformity is mainly caused by edge effect when the condition at the standing effect and skin effect do not *** edge effect decreases with exciting frequency *** is due to sheath voltage decreases with exciting ***,the plasma nonuniformity degree α decreases linearly from 2MHz to *** RF power increases can enhance edge effect,and lead the plasma nonuniformity degree increases.

关键词： Capacitively coupled plasma Exciting frequency Plasma nonuniformity

Efficient and Lossless Multicast Support in Large Routers

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Efficient and Lossless Multicast Support in Large Routers

2006 10th International Conference on Communication Technology（ICCT 2006）

作者： Yufeng Li Julong Lan Han Qiu Peng Yi National Digital Switching System Engineering & Technological research center Zhengzhou Henan china 450002 Fengsen Deng School of Electronic Engineering university of Electronic science and Technology chengdu Sichuan china 610054

Today, multicast-capable routers generally handle multicast traffic by appending each cell a local multicast output label （LMOL） containing a bitmap with as many bits as output ports, so as to identify the ports to which a copy of the cell has to be transferred. However, this approach is unfeasible for the very large IP routers having 128 output ports or more, because the LMOL length would rise above 16bytes, thus the bandwidth wasted for transmitting LMOL will be intolerable for small cells. Recently, there come forth many approaches using various lossy compression algorithms to shorten the LMOL, hence to save bandwidth and improve efficiency. In this paper, we aim to offer both lossless replication and high efficiency for multicast traffic traversing in large routers, and present a scheme characterized by dual lookups and three-stage replications to achieve the goals. Experiment results show that the scheme can support multicast replication with no loss happening for large IP routers with as many as 128×128 output ports, in condition that the internal bus width being a normal value of 128, meanwhile, the scheme can also provide the most efficient transmission and replication.

关键词：

Blue light-dependent interaction of Arabidopsis blue light receptor cryptochrome 1 with SPA1 defines a dynamic signaling mechanism

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Blue light-dependent interaction of Arabidopsis blue light r...

2011全国植物生物学研讨会

作者： Hong-Li Lian~1,Sheng-Bo He~1,Yan-Chun Zhang~1,Dan-Meng Zhu~2,Jing-Yi Zhang~1, Kun-Peng Jia~1,Shu-Xia Sun~3,Ling Li~1 and Hong-Quan Yang~1 1 Plant science Institute,School of Agriculture and Biology,Shanghai Jiaotong university,Shanghai 200240,china 2 Peking-Yale Joint center of Plant Molecular Genetics and Agrobiotechnology, college of Life sciences,Peking university,Beijing 100871,china 3 Horticulture research Institute, Sichuan Academy of Agricultural sciences,chengdu 610066,china

Cryptochromes(CRY) are blue light photoreceptors that mediate various light responses in plants and *** it has been shown that Arabidopsis CRY1 signaling is mediated through its physical interaction with COP1,it is not known whether additional components are involved in CRY1 signaling and whether CRY1 signaling involves a blue light-dependent biochemical *** have characterized both the biochemical and genetic interactions between CRY1 and SPA1. Both CRY1 and CRY2 physically interact with SPA1 in yeast cells in a blue light-dependent manner,colocalize in nuclear bodies(NBs) in vivo,and CRY1 associates with SPA1 in plant cells specifically under blue ***,the blue light-induced CRY 1-SPA 1 interaction promotes the dissociation of COP 1 from SPA 1 in both yeast and plant *** results indicate that blue light-triggered

关键词： photoreceptor SPA1 COP1 cryptochrome 1 signaling

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体育基本理论若干问题探析

体育学刊 2002年第4期9卷 1-4页

作者：周西宽周鉴成都体育学院体育史研究所四川教育学院计算机中心四川成都610041

运用文献分析、专家访谈和哲学、社会学、文化学、科学学等多学科原理对体育基本理论若干问题进行新视角的探析。研究认为 :“体育基本理论”有必要作为体育概论、体育原理等同类异名学科的通用名称而被正式采用。体育基本理论的研究对... 详细信息

运用文献分析、专家访谈和哲学、社会学、文化学、科学学等多学科原理对体育基本理论若干问题进行新视角的探析。研究认为 :“体育基本理论”有必要作为体育概论、体育原理等同类异名学科的通用名称而被正式采用。体育基本理论的研究对象和领域必须明晰。体育基本理论的体系急需重构与完善。创新是体育基本理论建设与发展的当务之急。

关键词：体育事业体育理论体育基本理论学科建设理论创新

research on Control of Electric Power Steering System with Intelligent Feedforward

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Research on Control of Electric Power Steering System with I...

2010 Chinese Control and Decision Conference

作者： Weidong Zhang~1,Yibo Ai~2 1.National center for Materials Service Safety,university of science & Technology Beijing,100083 2.National center for Materials Service Safety,university of science & Technology Beijing,100083

＜正＞Electric power steering system（EPS） develops with the automobile entering the people’s *** can alleviate people’s burden from operation,make people have more energy to make decision and tackle various operation conditions,and improve reliability and security of the operation *** this paper,based on a type of EPS whose motor axis is same as steering column,the authors proposed a new type EPS with intelligent feedforward（EPS-IFF）. This new system can improve efficiency and intelligence of the system,and make the output of torsion fast,accurate and *** the physical force is alleviated the intelligence expend is alleviated *** can accomplish the power assistant steering fast and accurately,and then the system capability will be improved overall.

关键词： Electric Power Steering System Feedforward Control Expert System