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A measuring method of effects of herbs based on classification used for intelligent calculation of efficacies of prescriptions

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Science china(Information sciences) 2010年第10期53卷 2047-2061页

作者： gao QuanQuan 1 & REN TingGe 2 1 academy of Math & Systems, chinese academy of sciences, beijing 100190, china 2 beijing University of chinese Medicine, beijing 100029, china academy of Math & Systems Chinese Academy of Sciences Beijing China beijing University of chinese Medicine Beijing China

It is important to translate dosage of each medical herb in a prescription into intensity of its effects measured by mathematical models. In this paper, we present intelligent calculational algorithms on efficacies of prescriptions of chinese Medicine (CM), study "how curative effects of any herb depend on dosage" when constructing CM intelligent systems, and discuss relevant issues and definitions. In order to measure intensities of effects of all herbs reasonably, the natural classification method is proposed to classify herbs into 38 natural classes according to their dosage ranges using the knowledge of CM dosage and distribution rules of herbs. Then the 38 natural classes are clustered to 6 basic classes reflecting characteristic attributes of various herbs. Based on the results of classified herbs, a set of nonlinear measuring functions of intensities of effects is designed for various basic classes. These functions have been embedded in our intelligent calculation system of efficacies of prescriptions. The effects of 560 herbs and curative efficacies of more than 1000 prescriptions derived from "ShangHan Lun", "JinGui YaoLue", "Ming Jia Yi An", etc., have been calculated and discovered successfully. It is proved that the accuracy of theses results by these models has been obviously enhanced.

关键词： intelligent calculation mathematical modeling measuring method efficacies of prescriptions

Love wave propagation in one-dimensional piezoelectric quasicrystal multilayered nanoplates with surface effects

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Applied Mathematics and Mechanics(English Edition) 2024年第4期45卷 619-632页

作者： Xin FENG Liaoliang KE yang gao College of Science China Agricultural UniversityBeijing 100083China School of Mechanical Engineering Tianjin UniversityTianjin 300350China

The exact solutions for the propagation of Love waves in one-dimensional(1D)hexagonal piezoelectric quasicrystal(PQC)nanoplates with surface effects are *** electro-elastic model is developed to investigate the anti-plane strain problem of Love wave *** introducing three shape functions,the wave equations and electric balance equations are decoupled into three uncorrelated *** the boundary conditions of the top surface on the covering layer,the interlayer interface,and the matrix,a dispersive equation with the influence of multi-physical field coupling is provided.A surface PQC model is developed to investigate the surface effects on the propagation behaviors of Love waves in quasicrystal(QC)multilayered structures with nanoscale thicknesses.A novel dispersion relation for the PQC structure is derived in an explicit closed form according to the non-classical mechanical and electric boundary *** examples are given to reveal the effects of the boundary conditions,stacking sequence,characteristic scale,and phason fluctuation characteristics on the dispersion curves of Love waves propagating in PQC nanoplates with surface effects.

关键词： piezoelectric quasicrystal(PQC)material multilayered plate dispersion characteristic surface effect

Isolation and Characterization of Photosystem Ⅱ of Porphyra yezoensis Ueda

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Acta Biochimica et Biophysica Sinica 2004年第11期36卷 780-785页

作者： Zheng-Quan gao, Guang-Ce WANG, and Cheng-Kui TSENGKey Laboratory of Experimental Marine Biology, Institute of Oceanology, the chinese academy of sciences, Qingdao 266071, china Graduate school, the chinese academy of sciences, beijing 100039, china Key Laboratory of Experimental Marine Biology Institute of Oceanology the Chinese Academy of SciencesQingdao 266071 China Graduate school the Chinese Academy of SciencesBeijing 100039 China

The thylakoid membranes were isolated and purified from gametophyte of Porphyra yezoensis Ueda (P. yezoensis) by sucrose density gradient ultracentrifugation. After P. yezoensis gametophyte thylakoid membranes were so... 详细信息

关键词： red algae Porphyra yezoensis Ueda photosystem Ⅱ polypeptide composition extrinsic protein

Possible Energy Network with polygeneration system and CCS for china

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中国科学：技术科学英文版 2010年第1期53卷 33-39页

作者： gao Lin1,LI Sheng1,2,JIN HongGuang1 & LIN Hu1 1 Institute of Engineering Thermophysics,chinese academy of sciences,beijing 100190,china 2 Graduate School of chinese academy of sciences,beijing 100039,china Institute of Engineering Thermophysics Chinese Academy of Sciences Beijing China Graduate School of chinese academy of sciences Beijing China

On basis of adopting polygeneration systems for power and alternative fuels,capturing CO2 with near zero energy penalties,and storing CO2 on sites,a new kind of Energy Network can integrate energy utilization,CO2 capture,transportation and storage ***-economic analysis of this solution focusing on Inner Mongolia and the yangtze River Delta districts had been carried with comparison to the chain method for energy utilization and CO2 *** solution can save 21.5% of energy,and reduce 35% of total *** adoption of advanced polygeneration systems contributes 52.2% of the total saved costs,and the integration of energy utilization and CO2 sequestration in the Energy Network contributes 47.8%.From the aspect of CCS,the CO2 sequestration cost in the Energy Network can be as low as 12 $/t due to the lower energy penalties of capture in polygeneration systems and the combination of CO2 source and *** Energy Network exhibits attractive performance on energy saving,costs reduction for CCS,which may be a promising solution for sustainable development of china.

关键词： CO2 capture and storage Energy Network polygeneration system

A CRITERION FOR TESTING WHETHER A DIFFERENCE IDEAL IS PRIME

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Journal of Systems Science & Complexity 2009年第4期22卷 627-635页

作者： Chunming YUAN Xiao-Shan gao Key Laboratory of Mathematics Mechanization,Institute of Systems Science academy of Mathematics and Systems Science,chinese academy of sciences,beijing 100190,china. Key Laboratory of Mathematics Mechanization Institute of Systems Science Beijing China academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing China

This paper presents a criterion for testing the irreducibility of a polynomial over an algebraicextension *** this criterion and the characteristic set method,the authors give a criterion fortesting whether certain difference ascending chains are strong irreducible,and as a consequence,whetherthe saturation ideals of these ascending chains are prime ideals.

关键词： Characteristic set difference prime ideal irreducibility strong irreducibility.

Precise orbit determination for low Earth orbit satellites using GNSS:Observations,models,and methods

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Astrodynamics 2024年第3期8卷 349-374页

作者： Xinyuan Mao Wenbing Wang yang gao Technology and Engineering Center for Space Utilization Chinese Academy of SciencesBeijing100094China University of chinese academy of sciences Beijing101408China

Spaceborne global navigation satellite system(GNSS)has significantly revolutionized the development of autonomous orbit determination techniques for low Earth orbit satellites for *** a state-of-the-art combination of GNSS observations and satellite dynamics,the absolute orbit determination for a single satellite reached a precision of 1 *** orbit determination(i.e.,precise baseline determination)for the dual satellites reached a precision of 1 *** paper reviews the recent advancements in GNSS products,observation processing,satellite gravitational and non-gravitational force modeling,and precise orbit determination *** key aspects have increased the precision of the orbit determination to fulfill the requirements of various scientific ***,recommendations are made to further investigate multi-GNSS combinations,satellite high-fidelity geometric models,geometric offset calibration,and comprehensive orbit determination strategies for satellite constellations.

关键词： low Earth orbit(LEO) precise orbit determination(POD) precise baseline determination(PBD) global navigation satellite system(GNSS) multi-GNSS satellite constellation

Geoscience Frontiers 2023 Annual Convention

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Geoscience Frontiers 2024年第3期15卷 484-487页

作者： Fei gao Lily Wang Yongqiang yang Geoscience Frontiers Journal CenterChina University of Geosciences(Beijing)Beijing 100083China

The 2023 Geoscience Frontiers Annual Convention was held at Niigata,Japan during 7-12 October 2023,together with 2023 IAGR Annual Convention and 20th International Conference on Gondwana to *** grand event assembled over 200 participants from several countries including china,Canada,India,Italy,Japan,Netherlands,Poland,Russia,South Korea,South Africa,Sri Lanka,Vietnam,United Kingdom,and United State of America.

关键词： Canada Convention Vietnam

Quantitative contributions of climate change and human activities to vegetation dynamics in the Zoige Plateau from 2001 to 2020

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Journal of Mountain Science 2024年第9期21卷 3031-3046页

作者： gao Bing LIU Enqin yang yang yang Man YAO yang GUAN Lei FENG Yiwen College of Geography and Planning Chengdu University of TechnologyChengdu 610059China Key Laboratory of Smart Earth Beijing 100029China Sichuan Provincial Soil and Water Conservation Ecological Environment Monitoring Station Chengdu 610041China College of Earth and Planetary sciences Chengdu University of TechnologyChengdu 610059China

Climate change and human activities such as overgrazing and rapid development of tourism simultaneously affected the vegetation of the Zoige ***,the spatiotemporal variations of vegetation and the relative contributions of climate change and human activities to these vegetation dynamics remain ***,clarifying how and why the vegetation on the Zoige Plateau changed can provide a scientific basis for the sustainable development of the ***,we investigate NDVI trends using the Normalized Difference Vegetation Index(NDVI)as an indicator of vegetation greenness and distinguish the relative effects of climate changes and human activities on vegetation changes by utilizing residual trend analysis and the *** find a tendency of vegetation greening from 2001 to 2020,with significant greening accounting for 21.44%of the entire ***,browning area expanded rapidly after *** temperatures are the primary driver of vegetation changes in the Zoige *** variations and human activities were responsible for 65.57%and 34.43%of vegetation greening,and 39.14%and 60.86%of vegetation browning,respectively,with browning concentrated along the Yellow,Black and White *** to 2001-2010,the inhibitory effect of human activity and climate fluctuations on vegetation grew dramatically between 2011 and 2020.

关键词： Vegetation change Climate change Residual trend analysis Geodetector Human activities Zoige plateau

UV-visible Absorption Studies of Tetrachloro-p-benzoquinone and Tertiary Amines Charge Transfer Complexes in Trichloromcthane

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chinese Chemical Letters 1999年第12期10卷 0-0,0-0页

作者： Fang gao Yong Yuan yang(Institute of Photographic Chemistry, The chinese academy of sciences, beijing 100101) Institute of Photographic Chemistry Chinese Academy of Sciences Beijing 100101 China

The spectophotometry of charge transfer (CT) complexes of tetrachloro-p-benzoquinone(TCB) with tertiary amine [triethylamine (TEA), triphylamine (TPA), N,N-dimethylphenylamine(DMPA), N-ethylcarbazole (ECZ)] have been studied in dichloromethane in UV-visible *** CT complexes parameter, molar ratio of reactAnts in complex, molar extinction coefficient equilibrium constant KCT, free energy G and dissociation energy of the CT complex excited stateE, have also been estimated and discussed.

关键词： Spectophotometry charge transfer tertiary amine tetrach loro-p-benzoqu inone.