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A New Kind of Social Network and Its Application in Text Mining

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A New Kind of Social Network and Its Application in Text Min...

第四届全国信息检索与内容安全学术会议

作者： Weijie YANG~+ Ruwei DAI~+ Xia CUI Institute of Automation,chinese academy of sciences,{3. 100190,China

Social networks have recently attracted much attention for their importance to the Semantic *** paper proposed a content analysis based method for automatic obtaining social networks among various entities from chinese news stories.A new social network is defined,which is a kind of directed graph composed by named entities,relationship directions and relationship *** kind of social network can provide new thoughts and methods for other related researches in the field of text *** this paper,the applications of social network in relationship orientation analysis and automatic summarization are introduced.A series of experiments indicate that our method works well.

关键词： Social Network Main Verb Recognition Relationship Orientation Automatic Text Summarization.

Development of direction selectivity circuitry in mouse retina

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Development of direction selectivity circuitry in mouse reti...

中国神经科学学会第四次会员代表大会暨第七届全国学术会议

作者： Ming-Gang CHEN,Shi-Gang HE Institute of Biophysics,chinese academy of sciences,{3. 100101,China

＜正＞Objective To investigate the development of directional selective ganglion cells（DSGCs） and the development of direction selective（DS） circuitry in the mouse *** Loose patch recordings were used to examine the physiological responses of ***-cell patch clamp was then established to investigate the synaptic inputs and neurobiotin was infused into the cells after whole-cell recording to reveal the dendritic morphology of the *** some cases,dual loose patch recordings or dual loose patch recording and whole-cell recordings were performed to observe the correlation of spontaneous response of a DSGC and a neighboring *** are identified by their light responses or by their unique dendritic morphology in early *** Previous work from our lab found ON-OFF DSGCs as early as postnatal day 11（P11） and their physiological and morphological properties were very similar to those in adult mouse retina,indicating that the development of DSGCs may be independent of light inputs and the DS circuitry may form in very early ***-rearing experiments supported the first hypothesis and showed that DSGCs in mice that reared to adult in complete darkness were very similar to those found in control *** P8,before the retina was able to respond to light, single loose patch recordings showed that cells with DSGC morphology exhibited more irregular spontaneous bursts than the *** loose patch recordings from neighboring cells showed that although morphological DSGCs and their no-DS neighbors fire bursts of action potentials synchronously,in some cases,the morphological DSGCs failed to produce action potentials while its non-DS neighbor ***,dual whole cell recording and loose patch recording proved that at the time DSGCs did not respond with spikes,they still received excitatory inputs when their non-DS neighbors *** The development of DSGCs is not dependent of light inputs and the DS circuitry between DSGCs an

关键词： development DSGCs DS circuitry

面向21世纪的中国图书情报档案网络化发展战略构想

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图书馆 1997年第3期 9-11页

作者：霍国庆中国科学院文献情报中心

本文论析了面向二十一世纪中国图书情报档案网络化发展的战略指导思想、战略目标。

关键词：图书馆情报档案网络化发展战略中国

Nodule Formation and Development in Soybeans(Glycine max L.) in Response to Phosphorus Supply in Solution Culture

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Pedosphere 2007年第1期17卷 36-43页

作者： MIAO Shu-Jie QIAO Yun-Fa HAN Xiao-Zeng M. AN Northeast Institute of Geography and Agroecology Chinese Academy of Sciences Harbin 150081 （China） Key Labovatory of Soybean Biology of Ministry of Education Harbin 150030 （China） Graduate School of the chinese academy of sciences Beijing 100049 （China） E. H. Graham Centre for Agricultural Innovation NSW Department of Primary Industries ＆ Charles Sturt University Wagga Wagga NSW 2650 （Australia）

Phosphorus (P) is necessary for growth and nitrogen fixation, and thus its deficiency is a major factor limiting legume production in most agricultural soils. The effect of phosphorus supply on nodule development and its role in soybeans (Glycine max L.) was studied in a nutrient solution. Plants were inoculated with Bradyrhizobium japonicum and grown for 3. days in a glasshouse at a day and night temperature of 25℃and 15℃, respectively. Although increasing P supply increased the concentrations of P and N in the shoots and roots, the external P supply did not significantly affect the P concentration in the nodules, and the N fixed per unit nodule biomass decreased with increasing P supply. The nitrogen content in the shoots correlated well with the P content (r = 0.92**). At an inoculation level of 102 cells mL-1, the P supply did not affect the number of nodules; however, at inoculation levels of 103.5 and 105 cells mL-1, increasing P supply increased both the number and size of nodules. Irrespective of the inoculation level, increasing P supply increased the nodule biomass relative to the biomass of the host plant. It is suggested that the P deficiency specifically inhibited the nodule development and thereby the total N2 fixation.

关键词： inoculation level nitrogen fixation nodulation phosphorus soybeans

Correlations between the ages of Alnus host species and the genetic diversity of associated endosymbiotic Frankia strains from nodules

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Science China(Life sciences) 2005年第z1期48卷 76-81页

作者： DAI Yumei, ZHANG Chenggang, XIONG Zhi & ZHANG Zhongze Institute of Applied Ecology, chinese academy of sciences, Shenyang 110016, China Graduate School of the chinese academy of sciences, beijing 10003., China School of Forest Resources, Southwest Forestry College, Kunming 650224. China 1. Institute of Applied Ecology Chinese Academy of Sciences 110016 Shenyang China 2. Graduate School of the chinese academy of sciences 100039 Beijing China 3. School of Forest Resources Southwest Forestry College 650224 Kunming China

Nodule samples were collected from four alder species: Alnus nepalensis, A. sibirica, A. tinctoria and A. mandshurica growing in different environments on Gaoligong Mountains,Yunnan Province of Southwest China and on Changbai Mountains, Jilin Province of Northeast China. PCR-RFLP analysis of the IGS between nifD and nifK genes was directly applied to uncultured Frankia strains in the nodules. A total of 21 restriction patterns were obtained. The Frankia population in the nodules of A. nepalensis had the highest genetic diversity among all four Frankia populations; by contrast, the population in the nodules of A. mandshurica had the lowest degree of divergence; the ones in the nodules of A. sibirica and A. tinctoria were intermediate. A dendrogram, which was constructed based on the genetic distance between the restriction patterns, indicated that Frankia strains from A. sibirica and A. tinctoria had a close genetic relationship. Frankia strains from A. nepalensis might be the ancestor of Frankia strains infecting other Alnus species. From these results and the inference of the ages of Alnus host species, it is deduced that there was a co-evolution between Alnus and its microsymbiont Frankia in China.

关键词： Frankia, Alnus, genetic diversity, co-evolution.

Controllability of Switched Affine Systems

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Controllability of Switched Affine Systems

第二十四届中国控制会议

作者： Daizhan Cheng Institute of Systems Science, chinese academy of sciences, {3. 100080, P.R. China

＜正＞ This paper considers the controllability of switched affine nonlinear systems, which include switched linear systems and non-switched linear or nonlinear systems as their particular cases. A sufficient condition is obtained. It becomes necessary and sufficient condition for linear （switched or not） systems and some particular cases of codim（G）=1.

关键词： Switched Nonlinear System Global Controllability Convex Cone Controllability Distributions

An Interpretation of the Influential Power of China Development

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chinese Journal of Population,Resources and Environment 2012年第2期10卷 12-23页

作者： Zhou Hailin Guo Chaoxian The Administrative Center for China's Agenda 21 Beijing 100038 China Institute of Industrial Economics of chinese academy of Social sciences Beijing 100836 China

Through the analysis on China＇s economic develop- ment, utilization of resource environment and soft power, a basic judgment was made of the influence of ＂China development＂. The overall influential power of China development on international community was misunderstood. What we see is the role of ＂China Factor＂ in different fields. In the process of economic globalization, what economic system of capitalist market has seen is ＂China＇s cheap labor＂, ＂China＇s loose economic system environment＂, ＂earlier abuse of unlimited resource environment＂, ＂China＇s broad consumption market＂ and ＂demographic dividend＂. In global or Asian financial crisis, what other countries valued was China＇s ＂foreign currency＂ accumulated over the years. In global gov- ernance or crisis management, what international community expected was ＂China＇s obligations and responsibilities＂ without the right of speech, etc.. All these are the ＂passive＂ roles produced by ＂a single factor＂ in definite fields. The active and initiative role China will play in international community still needs time and the continuous efforts of several generations. China once was a big country that had significant inftuential power on the world, and China＇s renaissance is a normal process of development of things. What excessive talks about its influential power reflect may be the lack of China＇s influence.

关键词： China development influential power China Factor interpretation

Stabilization of Switched Systems via Differential Inclusion

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Stabilization of Switched Systems via Differential Inclusion

第二十三届中国控制会议

作者： Daizhan Cheng (Institute of Systems Science, chinese academy of sciences, {3. 100080, P.R. China)

This paper considers the stabilization of switched linear systems. The switched law is determined by state feedback. Then the system becomes a discontinuous differential equation. Using Filipov solution and clarke’s ... 详细信息

关键词： Switched system Stability Filipov solution Clarke’s generalized gradient.

Analysis of the Short-Term Prediction of Solar X-Ray Bursts for the Maximum Phase（2000-2001） of Solar Cycle23

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Analysis of the Short-Term Prediction of Solar X-Ray Bursts ...

第十届全国日地空间物理学术讨论会

作者： Cui-lian Zhu, Jia-long Wang (National Astronomical Observatories, chinese academy of sciences,{3. 100012)

＜正＞ A verification of short-term predictions of solar X-ray bursts for the maximumphase（2000-2001） of Solar Cycle 23.issued by prediction centers are made in this *** show that the rates of the correct predictions issued by RWC-China and WWA are of thesame order of magnitude,and that the rate of false prediction of RWC-China is higher than that ofWWA,while RWC-China has a lower the of failure prediction than that WWA *** haveworked out the following analyses and discussions for the results:

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