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International Journal of Sediment Research 1999年第2期14卷 179-186页

作者： Zhao-Yin WANG Andreas DITTRICH ( International Research and training Center on Erosion and Sedimentation, P.O. Box 3.6, beijing 100044. china Institute of Hydraulic Engineering and Rural Technology, Karlsruhe University 76128, Karlsruhe, Germany)

The effect of particle shape on the initiation of motion was studied experimentally with 11at. elliptical and round grains of the same volume-equivalent diameter. An armoring layer with imbricate cluster structure can be formed for flat particles. Experiments demonstrate that the particle shape has no great influence on the initiation of motion of individual particle before the imbricate cluster structure is developed. After the imbricate cluster structure is developed, however. the critical Shields parameter for initiation of flat particles is 65% larger than that for round particles. The influence of the length of the test section is studied in the paper too, which concluded that the influence is negligible as the length longer than 1 .4 m. Therefore the results of particles initiation with the 2 m long section is compatible to those from river flows.

关键词： Particle shape Initiation of motion Imbricate cluster structure. Shields parameter

Involvement of the crebellum in sequential finger movement learning:Evidence from functional magnetic resonance imaging

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Science Bulletin 2005年第17期 73-77页

作者： ZHU Yihong1, DI Haibo1,2, YUAN Yi3. REN Jin’ge3. YU Wei4, ZHANG Zhaoqi4, GAO Jiahong5, WENG Xuchu3.& CHEN Yizhang1 1. Medical School, Zhejiang University, Hangzhou 3.0006, china 2. Medical School, Hangzhou Normal University, Hangzhou 3.0018, china 3. Laboratory for Higher Brain Function, Institute of Psychology, Chi-nese Academy of Sciences, beijing 100101, china 4. Department of Radiology, beijing Anzhen Hospital of Capital Univer-sity, beijing 100029, china 5. Research Imaging Center, University of Texas Health Science Center, San Antonio, Texas, USA

Whether the cerebellum is involved in volun-tary motor learning or motor performance is the subject of a new debate. Using functional magnetic resonance imaging (fMRI), we examined cerebellar activation in eight volun-teers before and after an extended period of training. Activa-tion volume on both sides of cerebellum after learning was significantly reduced compared to that before learning even under the same motor frequency. Remarkably, while motor frequency for the training sequence was significantly higher than the control sequence after 41 d of learning, activation in the cerebellum for both sequences, with respect to activation loci and volumes, was very similar. These results suggest that the cerebellum was involved in motor learning but not motor performance. Changes of cerebellar activation from training thus appear to be associated with learning but not with im-provement on task performance.

关键词： cerebellum learning performance sequential movement fMRI.

Anticancer effect of aloe-emodin on cervical cancer cells involves G2/M arrest and induction of differentiation

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Acta Pharmacologica Sinica 2007年第12期28卷 1991-1995页

作者： Jun-ming GUO~(2,3.,Bing-xiu XIAO~2,Qiong LIU~2,Shun ZHANG~(2,4),Dong-hai LIU~(2,4),Zhao-hui GONG~2~2 Ningbo University School of Medicine,Ningbo 3.5211,china ~4 Affiliated Hospital(Ningbo № 2 Hospital),Ningbo University School ofMedicine,Ningbo 3.5010,china Ningbo University School of Medicine Ningbo 315211China Affiliated Hospital(Ningbo No 2 Hospital) Ningbo University School of MedicineNingbo 315010China

Aim:The aim of this study was to investigate the effects of aloe-emodin,a naturalcompound from the root and rhizome of Rheum palmatum,on the growth of hu-man cervical cancer cells,***:HeLa ceils were treated with variousconcentrations of aloe-emodin for 1-5 d,and cell growth was measured by 3.（4,5-dimethylthiazol-2-yl）-2,5-diphenyl tetrazolium bromide *** long-termgrowth effect was investigated by crystal violet *** distributions of thecell cycle and apoptosis were analyzed by flow *** alkaline phos-phatase （ALP） activity was analyzed by a chemical ***,Westernblotting was used to indicate the abundant changes of protein kinase C （PKC）,c-myc,cyclins,cyclin-dependent kinases （CDK）,and proliferating cell nuclear anti-gen （PCNA）.Results:Aloe-emodin inhibited the growth of HeLa cells in a dose-dependent manner at concentrations ranging between 2.5 and 40 μmol/*** cytometric analysis showed that HeLa cells were arrested at the G2/M *** effect was associated with the decrease in cyclin A and CDK2,and theincrease in cyclin B1 and *** importantly,the ALP activity was found tobe increased by aloe-emodin treatment,and accompanied by the inhibition ofPCNA *** addition,aloe-emodin suppressed the expression of PKCαand ***:These findings provide a possible mechanistic explana-tion for the growth inhibitory effect of aloe-emodin on HeLa,which includes cellcycle arrest and inducing differentiation.

关键词： HeLa cells cell cycle aloe-emodin alkaline phosphatase c-myc

基于语言神经网络的知识获取方法研究及在智能教学系统中的应用

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系统工程理论与实践 2004年第2期24卷 68-73,115页

作者：韦卫星莫赞廖义奎广西民族学院电子与通信工程学院广西南宁530006 华中科技大学控制科学与工程系湖北武汉430074 广西海恒电子信息研究所广西南宁530006

　提出了一种基于语言神经网络的知识获取方法,该方法利用语言神经元,对具有开区域的连续输入变量,自动产生相应的语言变量输出,讨论了相应的神经网络训练和知识获取方法,所获取的知识以If-Then的规则形式表示,具有简洁、紧凑、不必进... 详细信息

　提出了一种基于语言神经网络的知识获取方法,该方法利用语言神经元,对具有开区域的连续输入变量,自动产生相应的语言变量输出,讨论了相应的神经网络训练和知识获取方法,所获取的知识以If-Then的规则形式表示,具有简洁、紧凑、不必进一步化简、易于理解等特点,并给出在智能教学系统中获取专家领域知识的应用实例.

关键词：神经网络语言神经元规则获取智能教学系统

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On Translating Similes and Metaphors in Traditional Chinese Medicine Literature

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语言与文化研究 2007年第1期1卷 88-96页

作者： china Petroleum china Guangzhou training Center Qiu Hualing Guangzhou Chinese Medical University He Yi china Petroleum china Guangzhou training Center Guangzhou Chinese Medical University

This research is to explore the approaches to translating similes and metaphors in TCM works into English based on the translation principles and methods suggested by foreign *** the analysis,conclusions are drawn:①The principle of making sense should be emphasized,since TCM works mainly concentrate on conveying the objective information about human’s physical conditions during diagnosis and therapy.②Literal translation approach can be applied in translating similes to describe the symptoms and signs of the patients.③The translation of metaphors is more *** can be converted into the form of similes or with certain explanations to achieve the comprehensibility of the target *** some images can be left out from the metaphors or necessary explanations added to make them comprehensible to English readers.

关键词： Traditional Chinese Medicine Chinese-English Trans

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The Study of the Rough Set Neural Networks Based on SOFM

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The Study of the Rough Set Neural Networks Based on SOFM

Decomposition of almost Poisson structure of non-self-adjoint dynamical systems

2011 International Conference on Business Management and Electronic Information(BMEI 2011)

作者： DUAN Li-zhong 1 College of Management beijing University of Chinese Medicine beijing china DUAN Gu-na 2 College of Mechanical and Electronical Engineering North{3. University of Technology beijing china DUAN Jun 3.University of Science and Technology Inner Mongolia Baotou china ZHANG Ying 4 College of Management beijing University of Chinese Medicine beijing china GENG Hao 5 College of Management beijing University of Chinese Medicine beijing china XUAN Chun-yu 6 College of Management beijing University of Chinese Medicine beijing china

Objective:This paper refers to a New Rough Set neural network based on *** model perfectly solves many problems,such as the effects of training sample size and sample quality on accuracy of artificial neural ***,the new network has reduced computation and time training needed,simplified the neural network structure and improved the system ***:Combining the rough set with the neural network which bases on self-organized feature map （SOFM）,it has presented an architecture of rough set neural network system in this *** paper also designs a system flow chart and describes work principle of each ***:The validity of these models has been tested by practical *** results indicate that the system not only increases the quality and rate of diagnosis,but also reduces the measure items and diagnosis costs,which makes the result visualized and it has favorable applied ***:The calculation result of New Rough Set neural network based on SOFM is *** new model synthesizes the advantages of rough set theory and neural network.

关键词： rough set self-organizing feature map neural network fault diagnosis

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中国科学:技术科学 2010年第3期 345-345页

作者： GUO YongXin1,LIU Chang2,LIU ShiXing1,2 & CHANG Peng1 1 College of Physics,Liaoning University,Shenyang 11003.,china 2 Department of Applied Mechanics,beijing Institute of Technology,beijing {3.,china

Non-self-adjoint dynamical systems,e.g.,nonholonomic systems,can admit an almost Poisson structure,which is formulated by a kind of Poisson bracket satisfying the usual properties except for the Jacobi identity.A general theory of the almost Poisson structure is investigated based on a decomposition of the bracket into a sum of a Poisson one and an almost Poisson *** corresponding relation between Poisson structure and symplectic structure is proved,making use of Jacobiizer and *** on analysis of pseudo-symplectic structure of constraint submanifold of Chaplygin's nonholonomic systems,an almost Poisson bracket for the systems is constructed and decomposed into a sum of a canonical Poisson one and an almost Poisson ***,an almost Poisson structure,which can be decomposed into a sum of canonical one and an almost "Lie-Poisson" one,is also constructed on an affine space with torsion whose autoparallels are utilized to describe the free motion of some non-self-adjoint *** decomposition of the almost Poisson bracket directly leads to a decomposition of a dynamical vector field into a sum of usual Hamiltionian vector field and an almost Hamiltonian one,which is useful to simplifying the integration of vector fields.

关键词： almost-Poisson structure non-self-adjointness nonholonomic systems symplectic form Jacobi identity torsion

STUDY OF RURAL TOURISM IN TURPAN ,china

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Chinese Geographical Science 2005年第4期15卷 377-382页

作者： KEYIM Parhad YANG De-gang ZHANG Xiao-lei Xinjianglnstitute of Ecology and Geography Chinese Academy of Sciences UEruemqi 830011 P. R. China The Graduate School of Chinese A cademy of Sciences Beijing 100039 P. R. China

Rural tourism has long been considered the means of accelerating economic and social development, and has become a development tool for many rural areas. In response to agricultural structure adjustment, rural tourism in china took into shape as a new economic growth point to meet the market demand at the late 1980s. Now, a structural frame of rural tourism has shaped, with the core of Zhujiang (Pearl) River Delta, beijing, Shanghai and Chengdu of china. But in Xinjiang, the western part of china, there are hardly any studies in this field in spite of its richness of tourism resources. In this paper, development of rural tourism is studied in Turpan of Xinjiang Uygur Autonomous Region. With its rich natural and cultural tourism resources, Turpan has become one of the pioneer tourism destinations in china. But same to the rural tourism development of the other areas’ of china, rural tourism programs in Turpan mainly aimed at sightseeing activities, and little attention had been paid to the protection and exploitation of national minority culture-an important factor to satisfy both tourists demand and local economic development. However, this kind of rural tourism development policy is harmful on the long run. Because, many tourists seek tourist destinations that offer pleasant experiences related to not only the natural environment but also historic heritage and cultural patterns. The study suggests that on the base of government support in the long term, to enhance tourism training, to protect and exploit national minority culture are essential elements of rural tourism development in Turpan.

关键词： rural tourism Turpan Uygur

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像元分解法提取积雪边界线

山地学报 2004年第1期22卷 110-115页

作者：延昊张国平中国气象局国家气象中心中国气象局国家气象中心北京　100081

利用NOAA16 AVHRR的多光谱数据进行像元分解提取积雪边界线。首先对遥感数据进行主成分分析,提取含99%信息量的前两个主分量,对其进行散点图分析,获取终元。进行多光谱混合像元分解,提取积雪盖度参数,并依据积雪盖度提取积雪边界线。同... 详细信息

利用NOAA16 AVHRR的多光谱数据进行像元分解提取积雪边界线。首先对遥感数据进行主成分分析,提取含99%信息量的前两个主分量,对其进行散点图分析,获取终元。进行多光谱混合像元分解,提取积雪盖度参数,并依据积雪盖度提取积雪边界线。同时比较了最大似然分类提取的积雪边界线,发现分类积雪边界线变化较大,而盖度积雪边界线比较稳定,主要原因是像元分解提取的积雪边界线物理意义明确。

关键词： NOAA-AVHRR 混合像元光谱线性混合模型最大似然分类