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Studies on the chemical constituents of (Clausena Lansium) (Lour.) Skeels II.——The isolation and structural elucidation of neoclausenamide and dehydrocycloclausenamide

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chinese Journal of Chemistry 1987年第3期5卷 267-272页

作者： YANG Ming-He CHEN Yan-Yong HUANG Liang*, institute of Materia Medica chinese {2. of Medical {3.,beijing. institute of Materia Medica chinese {2. of Medical {3. Beijing

Two novel lactams (2.and 8) with lowering effect on the elevated SGPT levels were isolatedfrom leaves of Clausenamide lansium (Lout.) Skeels. Structural elucidations on the basis of their spectrometric data combined w... 详细信息

关键词： Studies on the chemical constituents of Clausena Lansium Skeels II Lour The isolation and structural elucidation of neoclausenamide and dehydrocycloclausenamide

SOME EXAMPLES OF TRANSITION SPANS MINERALIZING AND ANALYSIS OFTHEIR DYNAMICS

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Geotectonica et Metallogenia 2002年第1期26卷 89-92页

作者： BI Hua1, ZHAO Zhi zhong1, ZHU Wei huang2. YANG Yuan gen2.HUANG Lan3.and LIU Qiang3.1. Department of Resources, Environment and Tourism, Hainan Normal College, Haikou 571158, china 2. institute of Geochemistry,{2., Guiyang 550002. china 3. Biology Department, Hainan Normal College,Haikou 571158,china) Department of Resources Environment and Tourism Hainan Normal College Haikou 571158 China institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China Biology Department Hainan Normal College Haikou 571158 China

The transitional span is a special environment for deposits. Taking peat, oil gas, metallic deposits as examples, this paper discusses the spatial temporal transitional characteristics of mineralization in transitional regions, points out the importance of the mineralization in transition spans, and analyses their dynamics finally.

关键词： Transition spans ore formation, examples, dynamics

SCIENCE china In-Sight

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Science china(Life sciences) 2010年第1期53卷 150-150页

作者： HE ShiGang institute of Biophysics,chinese {2. of {3.,beijing 100101,china institute of Biophysics Chinese Academy of Sciences Beijing China

2.10 celebrates the 60th anniversary of this journal. From this issue,the journal features a brand new section: ’In-Sight’. Equivalent to the Cutting Edge of Cell,News and Views of

关键词： 2.10 SCIENCE china In-Sight

Regular solutions for multiplicative stochastic Landau-Lifshitz-Gilbert equation and blow-up phenomena

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Science china Mathematics 2010年第12期53卷 3115-3130页

作者： PU XueKe 1, & GUO BoLing 2.1 College of Mathematics and Statistics, Chongqing University, Chongqing 400044, china 2.{3. of Applied Physics and Computational Mathematics, P. O. Box 8009, {2. 100088, china College of Mathematics and Statistics Chongqing University Chongqing China institute of Applied Physics and Computational Mathematics Beijing China

The two-dimensional Landau-Lifshitz-Gilbert equation of motion for a classical magnetic moment perturbed by a multiplicative noise is considered. This equation is highly nonlinear in nature and, for this reason, many mathematical results in stochastic partial differential equations (SPDEs) cannot be applied. The aim of this work is to introduce the difference method to handle SPDEs and prove the existence of regular martingale solutions in dimension two. Some blow-up phenomena are presented, which are drastically different from the deterministic case. Finally, to yield correct thermal-equilibrium properties, Stratonovitch integral is used instead of Ito integral.

关键词： stochastic Landau-Lifshitz-Gilbert equation regular solution difference method blow up

Wave Loads and Protective Techniques of An On-Shore Wave Power Device

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china Ocean Engineering 1995年第4期10卷 455-464页

作者： You YageYuZhi Associated Professor, Guangzhou institute of Energy Conversion, chinese academy of sciences,Guangzhou 510070. Professor, Guangzhou institute of Energy Conversion, chinese academy of sciences, Guangzhou 510070

In this paper, the extreme wave loads on an on-shore wave power device are investigated. First, boundary element method is applied to solve the three dimensional potential problem based on the small amplitude wave assumption. Then the motion of the Oscillating Water Column (OWC) inside the device and its laods on the device are calculated in time domain. Several protective techniques often applied are simulated by changing the constraint of the upper end of the chamber of the device. Numerical results are used to judge the effectiveness of these techniques. The investigation shows that damping can not effectively restrain the motion of OWC when the period of incident wave is long, which may cause dangerous loads on the structure. The shut chamber can effectively restrain the motion of OWC, but alternatively cause high pressure in the chamber. A Contracting opening with a Taper (CT) can exhaust a great amount of kinetic energy of OWC, and significantly decrease the loads. It is a promising protective technique.

关键词： wave powr device protective technique wave load

A NEW APPROACH TO THE PROBLEM OF GRAIN IMPINGEMENTIN MODELLING RECRYSTALLIZATION TEXTUREDEVELOPMENT

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Acta Metallurgica Sinica(English Letters) 1997年第4期10卷 342-348页

作者： L.Q Chen Z. Yingand Z.D. Liang(institute of Metal Research, chinese academy of sciences, Shenyang 110015,{2.)(Department of Materials Science and Engineering, Northeastern University, Shenyang 110006,{2.) Inst of Metal Research Chinese Acad of Sciences Shenyang China

The recrpstallization texture evolution of an interstitial-free (IF) sheet steel dumngannealing is modellcd by Monte Carlo method. A new approach to the problem ofgraln impingement in modelling the development of recrystallization texture is fullydescri6ed, which is based on detailed site analysis and the introduction of proba6ilityvalue Pij for the tro nsition between dtherently oriented groins. As an illustmtive *** theory of orlented nucleation and two critical sizes of nuclei are selected to modelthe mechanism of recrystallization texture formation. The results simulated for severalrepresentative texture components are in agreement with the known experiments.

关键词： IF steel recrystallization texture modelling Monte Carlo method site analysis

Lp（ [0, 1]）-characterizations of multi-knot piecewise linear spectral sequences

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Progress in Natural Science:Materials International 2006年第7期16卷 684-690页

作者： LIAN Qiaofang, CHENG Linfeng, and YAN Dunyan ( Department of Mathematics, beijing Jiaotong University, beijing 100044,{2. Department of Mathematics,{2. University of Mining and Technology, Xuzhou 2.1008,{2. School of Information Science and Engineering, Graduate University of chinese academy of sciences, beijing 100080,{2.) chinese Acad Sci Sch Informat Sci & Engn Beijing 100080 Peoples R China china Univ Min & Technol Xuzhou 221008 Peoples R China beijing Jiaotong Univ Dept Math Beijing 100044 Peoples R China

There exists a class of new orthonormal basis for L2.[0, 1]), whose exponential parts are multi-knot piecewisf linear functions called spectral sequences. In this paper, we show that these bases constitute bases, but not unconditional bases, for Lp([0, 1 ]) with 1更多还原AbstractFilter('ChDivSummary', 'ChDivSummaryMore', 'ChDivSummaryReset');

关键词： exponential bases multi-knot piecewise linear spectral sequences unconditional bases.

Erosion-Corrosion Behaviors of High Velocity Arc Sprayed Fe-AlCr_3._2.Coating

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Journal of Wuhan University of Technology(Materials Science) 2006年第3期21卷 29-31页

作者：徐维普 Welding institute of Materials Science and Engineering Shanghai Jiaotong University Shanghai 200030ChinaNational Key Laboratory for Remanufacturing Beijing 100072China

Iron aluminide intermetallic coatings were prepared from Fe-Al/Cr3.2.cored wires using High Velocity Are Spraying （ HVAS ） technology. Erosion and corrosion properties of HVAS sprayed Fe-Al/Cr3.2.coatings were investigated. Results show that the erosion at impingement angle of 3.°is more than that of 90°. The erosion resistance of coatings was enhanced uith the inereaase of temperature. Coatings had a better erosion resislance than substrwles. The erosion changed from ductile behariors to brittle behaviors above 450℃ . At high temperature, the erosion resistances were superior to those at low temperwlure and roonl temperwlure. Cowlings had much higher corrosion properties than substrates. The temperature had a little effect on the corrosion resistance of coatings ; The corrosion losing of cowlings increased slowly with the increase of corrosion time. The HVAS-sprayed Fe-Al/Cr3.2.coatings exhibited a high bond strength and hardness.

关键词： Fe-Al/Cr3.2.cowlings high velocity arc spraying erosion corrosion

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Pedosphere 2003年第1期13卷 11-22页

作者： GONG ZITONG, ZHANG GANLIN, ZHAO WENJUN, ZHAO YUGUO and CHEN ZHICHENGinstitute of Soil Science, the chinese academy of sciences, Nanjing 2.0008 ({2.) institute of Soil Science the Chinese Academy of Sciences Nanjing 210008

During the past half century, the land utilization of Hainan Island has undergone a rapid development,but in the meanwhile, soil degradation occurs. Analysis on some basic data of the soil series collected frommore than 100 soil profiles at the end of the 1990s and beginning of this century, in combination with dataavailable, showed that soils there suffered significant decline in organic matter, experienced P and K deficiencywith soil K going on losing and undergone acidification with continuing trend. The current situation calls forstrategies to build up Hainan into an important province of sound ecology by restoring forests, to improvefood quality by implementing K supplement projects, to combat soil acidification by ameliorating the soils andgrowing leguminous crops and to ensure health of the people by developing dairy production and increasingthe daily Ca uptake by the people.

关键词： hainan island land use soil changes