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Journal of Geographical Sciences 2002年第4期12卷 467-471页

作者： HE Xiubin1,2. TANG Keli1, John A Matthews3, Geraint Owen3(1. Institute of Soil and Water Conservation, CAS, Yangling 712.00, China 2. Northwest SCI-Tech university of Agriculture and Forestry, Yangling 712.00, China 3. department of Geography, Univer Institute of Soil and Water Conservation CAS Yangling China Northwest SCI-Tech university of Agriculture and Forestry Yangling China department of Geography University of Wales Swansea UK

Soil erosion assessment and prediction play critical roles in addressing problems associated with erosion control or soil conservation. The past dynamics of soil erosion can provide valuable information for us to understand the relations of soil erosion to environmental change and anthropogenic activity. The present paper has compared Holocene climatic changes in northwestern China with those in southern Norway, and investigated the past dynamics of erosion activity during the Holocene. Modern soil erosion on the Loess Plateau is a combination of the intensive natural erosion and human-induced erosion, the latter being four times greater than the former. Because of global warming and increasing human activities, climate on the Loess Plateau is becoming dryer and more unstable, causing an enhanced erosion problem and water scarcity. In the arctic-alpine region of southern Norway, however, the global warming and regional wetting caused expansion of the largest European ice cap. This has accentuated the erosion in that region, with a higher frequency of avalanches and debris flows.

关键词： anthropogenic activity China climate changes erosion response Norway

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古代世界的“欧洲”观念

四川大学学报（哲学社会科学版） 2003年第6期 135-140页

作者：张旭鹏四川大学历史文化学院四川成都610064

当代欧洲一体化运动的思想文化渊源,可以追溯到古代"欧洲"观念的产生。而这一观念的产生与欧洲认同密不可分。随着神话概念(对过去的认同),地理概念(对空间的认同)和文化认同三个阶段的演进,欧洲认同逐渐加强,"欧洲"观念逐步形成,最早... 详细信息

当代欧洲一体化运动的思想文化渊源,可以追溯到古代"欧洲"观念的产生。而这一观念的产生与欧洲认同密不可分。随着神话概念(对过去的认同),地理概念(对空间的认同)和文化认同三个阶段的演进,欧洲认同逐渐加强,"欧洲"观念逐步形成,最早的欧洲一体思想也随之出现。

关键词：神话概念的欧洲欧洲认同 “欧洲”观念

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论“心”之言域及其在传统智慧中的意义

四川大学学报（哲学社会科学版） 2004年第6期 41-47页

作者：吴兴明四川大学文学与新闻学院四川成都610064

“心”之言域的整体性在现代学术的学科式研究中已被分解 ,由于这个缘故 ,它在中国传统智慧中的奠基性意义长期隐绰不明。“心”难以用现代西学的学科知识去理解 ,它含有身体之心、心之自性、心态心情等多重涵义。由于这些涵义 ,“心”... 详细信息

“心”之言域的整体性在现代学术的学科式研究中已被分解 ,由于这个缘故 ,它在中国传统智慧中的奠基性意义长期隐绰不明。“心”难以用现代西学的学科知识去理解 ,它含有身体之心、心之自性、心态心情等多重涵义。由于这些涵义 ,“心”之言域在传统智慧的几大流派中处于学理奠基的基础部位 ;它进而推演出了各智慧流派的思绪与言路 ,产生出林林总总的具有操作性意义的“心术”。沿“心”之言域及其内外各端的理据去清理 ,方能看清它在中国传统智慧之内在构成中的真实价值和脉络。

关键词：心心学心术心之自性

Stomatal movement in response to long distance-communicated signals initiated by heat shock in partial roots of Commelina communis L.

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Science China(Life Sciences) 2006年第1期49卷 18-25页

作者： YANG Songjie1, HUANG Conglin2. WU Zhongyi2. HU Jianfang3, LI Tianzhong3, LIU Shigui1 & JIA Wensuo3 1. School of Life Science, sichuan university, chengdu 610064, China 2. Beijing Agriculture and Forestry Academy, Beijing Agriculture and Biotechnology Center, Beijing 10089, China . 3. State Key Laboratory of Plant Physiology and Bio{2., College of Agronomy and Biotechnology, China Agricultural university, Beijing 100094, China School of Life Science Sichuan University Chengdu 610064 China Beijing Agriculture and Forestry Academy Beijing Agriculture and Biotechnology Center Beijing 10089 China State Key Laboratory of Plant Physiology and Biochemistry College of Agronomy and Biotechnology China Agricultural University Beijing 100094 China

The systematic or long-distance signal transmission plays crucial roles inanimal lives. Compared with animals, however, much less is known about the roles of long-distancesignal communication in plant lives. Using the model plant Commelina communisL, we have probed theroot to shoot communication mediated by heat-shock signals. The results showed that a heat shock of5 min at 40°C in partial roots, i.e. half or even 1/4 root system, could lead to a significantdecrease in stomatal conductance. The regulation capability depends on both heat shock temperatureand the amount of root system, i.e. with higher temperature and more roots stressed, the leafconductance would decrease more significantly. Interestingly, the stomatal regulation by heat shocksignal is in a manner of oscillation: when stomata conductance decreased to the lowest level withinabout 30 min, it would increase rapidly and sometimes even exceed the initial level, and afterseveral cycles the stomata conductance would be finallystabilized at a lower level. Feeding xylemsap collected from heat-shocked plants could lead to a decrease in stomata conductance, suggestingthat the heat shock-initiated signal is basically a positive signal. Further studies showed thatheat shock wasnot able to affect ABA content in xylem sap, and also, not able to lead to a decreasein leaf water status, which suggested that the stomatal regulation was neither mediated by ABA norby a hydraulic signal. Heat shock could lead to an increase in xylemsap H_2._2.content, andmoreover, the removal of H_2._2.by catalase could partially recover the stomatal inhibition by xylemsap collected from heat-shocked plants, suggesting that H_2._2.might be able to act as one of theroot signals to control the stomatal movement. Due to the fact that heat-shock and drought areusually two concomitant stresses, the stomatal regulation by heat-shock signal should be ofsignificance for plant response to stresses. The observation for the stomatal regulation in an

关键词： root signal, leaf conductance, heat shock, long-distance, signal transmission, abscisic acid.

Bs（d）0-■s（d）0 Mixing and New Physics Effects in a Top Quark Two-Higgs Doublet Model

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Communications in Theoretical Physics 2007年第6期47卷 1099-1105页

作者： Lü Lin-Xia~(1,2.+) XIAO Zhen-Jun~(1,++)1 department of Physics and Institute of Theoretical Physics,Nanjing Normal university,Nanjing 2.0097,China{2. of Physics,Nanyang Teacher's College,Nanyang 473061,China

We calculate the new physics contributions to the neutral Bd0and Bs0meson mass splitting △Mdand △Msinduced by the box diagrams involving the charged-Higgs bosons in the top quark two-Higgs doublet model（T2.DM）.Using the precision data,we obtain the bounds on the parameter space of the T2.DM:（a）For fixed MH=400 GeVand δ=[0°,60°],the upper bound on tan β is tan β≤30 after the inclusion of major theoretical uncertainties;（b）Forthe case of tan β≤2.,a light charged Higgs boson with a mass around 300 GeV is allowed;and（c）The bounds ontan β and MHare strongly correlated:a smaller（larger）tan β means a lighter（heavier）charged Higgs boson.

关键词： B meson mixing new physics effects two-Higgs-doublet model

ESR study on some copper(Ⅱ)complexes of bis(4'-benzo-15-crown-5)

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Chinese Journal of chemistry 1992年第4期10卷 304-308页

作者： LI,Yong WANG,Gui-Jun department of chemistry,Tsinghua {2.,Beijing 100084

ESR measurements have been carried out for some copper(Ⅱ) complexes of bis(4'-ben- zo-15-crown-5) at 77 *** results of ESR spectrometric titration indicated that the binuclear com- plexes were prepared in the present *** binuclear complexes revealed characteristic ESR g-anisotropies (gZ2.ground state ***,in this case,the innermolecular copper(Ⅱ)-copper(Ⅱ) spin interaction was not *** measurements also showed that a small amount of the sandwich type copper(Ⅱ) com- plexes were formed in the presence of excess bis (4'-benzo-15-crown-5).A reasonable explanation was given for the ESR results.

关键词： ESR study on some copper benzo-15-crown-5 complexes of bis

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我国银行业风险与存款保险制度的完善

四川大学学报（哲学社会科学版） 2005年第1期 17-21页

作者：龚秀国四川大学经济学院四川成都610064

在银行业即将对外全面开放之际,我国银行业潜伏着巨大危机。我国所谓的"隐性存款保险制度"不是一个公平的、有效的防范银行业风险和提高银行管理水平的制度。因此,应实行强制性存款保险制度并根据银行不同风险暴露实行差别性存款保险费... 详细信息

在银行业即将对外全面开放之际,我国银行业潜伏着巨大危机。我国所谓的"隐性存款保险制度"不是一个公平的、有效的防范银行业风险和提高银行管理水平的制度。因此,应实行强制性存款保险制度并根据银行不同风险暴露实行差别性存款保险费率,从而规避保险制度中普遍存在的逆向选择和道德风险问题。

关键词：存款保险银行业风险逆向选择道德风险

格子Boltzmann方法在非牛顿流体研究中的应用

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四川大学学报（自然科学版） 2002年第2期39卷 214-218页

作者：王沁姚令侃陈春光西南交通大学土木工程学院

建立了用于非牛顿流体的格子Boltzmann方法 ,通过Chapman Enskog展开和多尺度技术 ,并选择特定的平衡态分布函数的形式 ,可以得到非牛顿流体流动的宏观Navier Stokes方程。

关键词：格子Boltzmann方法 Navier-Stokes方程非牛顿流体流动 Chapman-Enskog展开平衡态分布函数宾汉模式

ESR Study of the Reaction Between Cp_2.i(CO)_2.and Cp_2.iBr_2

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Chemical Research in Chinese Universities 1991年第1期7卷 47-50页

作者： Wang Jitao, Liu Fengquan Bai Lingjun (department of chemistry, Nankai {2., Tianjin)

Introduction Floriani and Fachinetti have proposed that （Cp;TiCl）;can be prepared by the reaction between Cp;TiCl;and Cp;Ti（CO）;. We extended the method to the preparation of （Cp;TiBr）;and characterized an activ... 详细信息

关键词： ESR Simulate Hyperfine structure