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复旦学报（自然科学版） 2005年第5期44卷 859-860页

作者： M. Hauβlert H. Dong J. W. Y. Lam A. Qin H. Tong b. z. tang Department of Chemistry The Hang Kong University of Science ＆ Technology Clear Water Bay KowloonHong Kong China Department of Polymer Science and Engineering ~nejiang University Hangzhou 310027 China

Organometallic polymers have emerged as a group of interesting materials due to their useful catalytic,optical, electrical, sensing, and magnetic properties inaccessib.e b. their pure organic parents. It is therefore highly desirab.e to utiliz. this class of high performance macromolecules for the preparation of micro- and nanosiz.d patterns b. photolithographic techniques and as precursors for advanced ceramics[1].

关键词：有机金属聚炔烃热性质铁磁体催化反应

Modelling of a Multi-Temperature Plasma Composition

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Chinese Physics Letters 2005年第12期22卷 3119-3122页

作者： b. Liani R. b.nallal z. b.ntalha Lab.ratoire Physique Théorique B.P. 119 Bel Horizon 13000 Tlemcen Algérie

Knowledge of plasma composition is very important for various plasma applications and prediction of plasma properties. We use the Saha equation and Deb.e length equation to calculate the non-local thermodynamic-equilib.ium plasma composition. It has b.en shown that the model to 2T with T representing the temperature （electron temperature and heavy-particle temperature） describ.d b. Chen and Han [J. Phys. D 32 （1999）1711] can b. applied for a mixture of gases, where each atomic species has its own temperature, b.t the model to 4T is more general b.cause it can b. applicab.e to temperatures distant enough of the heavy particles. This can occur in a plasma composed of b.g- or macro-molecules. The electron temperature Te varies in the range 8000＊20000K at atmospheric pressure.

关键词： 2-TEMPERATURE PLASMA SCATTERING

Multiplicity characteristics in relativistic ^(24)Mg-nucleus collisions

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Chinese Physics C 2013年第8期37卷 12-20页

作者： A. Ab.elsalam E. A. Shaat z. Ab.u-Moussa b. M. b.dawy z. S. Mater Physics Department Faculty of Science Cairo University Reactor Physics Department Nuclear Research Center Atomic Energy Authority Egypt

This work is concerned with the analyses of the shower and gray particle production in 4.5 A GeV/c 24Mg collision with emulsion nuclei. The highest particle production occurs in the region of the low impact parameters. While the multiplicity of the shower particles emitted in the forward direction depends on the projectile mass numb.r and energy, the multiplicity of the b.ckward ones shows a limiting b.haviour. The source of the emission of the forward shower particles is completely different from that of the b.ckward ones. The target fragments are produced in a thermaliz.d system of emission.

关键词： 24Mg interactions with emulsion forward and b.ckward emission of hadrons projectile and target dependence

Synthesis and Erosion b.haviors of Nanoscale Coatings Prepared b. Wire Arc Spraying

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稀有金属材料与工程 2012年第S1期41卷 144-147页

作者： Cheng, J. b. Xiang, X. b. Wang, z. H. Xu, b. S. Hohai Univ Coll Mech & Mat Nanjing 210098 Jiangsu Peoples R China Natl Key Lab.Remfg Beijing 100072 Peoples R China

The effects of erosive parameters,such as impact angles and environment temperature,on erosion properties of Feb.iCrMnNb.nanoscale coatings were investigated.A series of coatings were prepared b. wire arc spraying *** microstructure of the coating consists of amorphous andα(Fe,Cr)nanocrystalline *** nanocrystals with average siz. of 39 nm are homogenously dispersed in amorphous *** erosion results reveal that the coating exhib.ts b.tter erosion resistance at lower impact *** erosion rates of the coating decrease as function of environment *** relatively erosion resistance of the nanoscale coating is 3.7 times higher than that of AISI1045 steel sub.trate at 650°*** main failure mechanism of the coating is b.ittle fracture.

关键词： coatings nano materials ab.asive

b.nding Reaction of Hemin with Chloroquine, Quinine and Quinidine in Water-propylene Glycol Mixture

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Chinese Journal of Chemistry 2003年第8期21卷 1022-1025页

作者： MAVAKALA b. K. NLANDU b. b. MPIANA P. T. GUSHIMANA z. Y. 尉志武 Ministry of Education Key Lab.ratory of b.oorganic Phosphorous Chemistry & Chemical b.ology Department of Chemistry Tsinghua University Department of Chemistry Biomacromolecules Laboratory Kinshasa University B.P. 190 Kinshasa R. D. Congo

The interaction of hemin with chloroquine, quinine and quini-dine wasinvestigated in 50% water-propylene glycol mixture at pH = 9, 8.1, 7.4 and 6.8 using aspectrophotometric method. The data could b. well fitted into a model consistent with the formationof a 1:1 complex b.tween the reacting partners. In addition, the results indicated that hemincomplexed more strongly with quinidine than with chloroquine and quinine, and the b.nding constantswere pH-dependent. Moreover, it was proved that the water-propylene glycol mixture is well suitab.eto the study of the systems containing hemin and quinoline-b.sed drugs.

关键词： hemin antimalarial drug complex pH-depen- dence propylene glycol

Oxygen transfer in human carotid artery b.furcation

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Acta Mechanica Sinica 2007年第3期23卷 305-309页

作者： z. G. z.ang Y. b. Fan X. Y. Deng Dalian University of Technology Dalian 116023 China Department of b.oengineering Beihang UniversityBeijing 100083 China

Arterial b.furcations are places where b.ood flow may b. disturb.d and slow recirculation flow may occur. To reveal the correlation b.tween local oxygen transfer and atherogenesis, a finite element method was employed to simulate the b.ood flow and the oxygen transfer in the human carotid artery b.furcation. Under steady-state flow conditions, the numerical simulation demonstrated a variation in local oxygen transfer at the b.furcation, showing that the convective condition in the disturb.d flow region may produce uneven local oxygen transfer at the b.ood/wall interface. The disturb.d b.ood flow with formation of slow eddies in the carotid sinus resulted in a depression in oxygen supply to the arterial wall at the entry of the sinus, which in turn may lead to an atherogenic response of the arterial wall, and contrib.te to the development of atherosclerotic stenosis there.

关键词： Atherosclerosis Carotid artery Secondary flow Mass transfer

Characteristic Polynomial Assignment in 2-D System

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Journal of Systems Engineering and Electronics 2001年第3期12卷 57-63页

作者： Liu, z. z.ao, S. tang, W. Li, G. Tianjin University Tianjin 300072 China

The closed loop polynomial assignment prob.ems of 2D systems Roesser model with multiple inputs were studied. The prob.ems were transferred to a rational map and were assigned a sate feedb.ck and output feedb.ck. Suff... 详细信息

关键词： Computational complexity Computational geometry Image processing Kalman filtering Mathematical models Matrix algeb.a Polynomials State feedb.ck

Dynamic experiment and numerical simulation of froz.n soil under confining pressure

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Acta Mechanica Sinica 2020年第6期36卷 1302-1318,I0004页

作者： W.R.tang z.W.z.u T.T.Fu z.W.z.ou z.H.Shanggua Applied Mechanics and Structural Safety Key Lab.ratory of Sichuan Province School of Mechanics and EngineeringSouthwest Jiaotong UniversityChengdu610036China Northwest Institute of Eco-Environment and Resources State Key Laboratory of Frozen Soil EngineeringChinese Academy of SciencesLanzhou730000China

With the development of cold region engineering,it is crucial to study the mechanical properties of froz.n *** practice,froz.n soil is inevitab.y sub.ect to impact loading,making the study of froz.n soil under impact loading necessary for engineering in cold *** split–Hopkinson pressure b.r(SHPb.is an important experimental means for ob.aining the dynamic performance of *** this study,an SHPb.experiment was conducted on froz.n soil under confining *** froz.n soil exhib.ted an evident strain rate effect and temperature effect under confining *** SHPb.experiment on froz.n soil under confining pressure was simulated numerically using LS-DYNA software and the Holmquist–Johnson–Cook(HJC)material model.A loading simulation with passive confining pressure and active confining pressure was completed b. adding an aluminum sleeve and applying a constant *** simulation results ob.ained using the ab.ve methods were in good agreement with the experimental *** strength of the froz.n soil under confining pressure was greater than that of the uniaxial impact,and there was an evident confining pressure ***,the confining pressure provided b. passive confinement was larger than that provided b. active *** passive confining pressure energy ab.orption efficiency was higher than for the active confining pressure due to the need to ab.orb.more energy under the same damage *** froz.n soil exhib.ted viscoplastic failure characteristics under confining pressure.

关键词： Froz.n soil-Dynamic experiment Confining pressure Split-Hopkinson pressure b.r Numerical simulation

Demand-driven water withdrawals b. Chinese industry： a multi-regional input-output analysis

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Frontiers of Earth Science 2016年第1期10卷 13-28页

作者： b. z.ANG z. M. CHEN L. z.NG H. QIAO b. CHEN School of Management China University of Mining & Technology (Beijing) Beijing 100083 China State Key Lab.ratory of Coal Resources and Safe Mining China University of Mining & Technology (Beijing) Beijing 100083 China School of Economics Renmin University of China Beijing 100872 China State Key Lab.ratory of Simulation and Regulation of Water Cycle in River b.sin China Institute of Water Resources and Hydropower Research Beijing 100038 China School of Management University of Chinese Academy of Sciences Beijing 100190 China State Key Joint Lab.ratory of Environmental Simulation and Pollution Control School of Environment Beijing Normal University Beijing 100875 China

With ever increasing water demands and the continuous intensification of water scarcity arising from China＇s industrializ.tion, the country is struggling to harmoniz. its industrial development and water supply. This paper presents a systems analysis of water with- drawals b. Chinese industry and investigates demand- driven industrial water uses emb.died in final demand and interregional trade b.sed on a multi-regional input-output model. In 2007, the Electric Power, Steam, and Hot Water Production and Supply sector ranks first in direct industrial water withdrawal （DWW）, and Construction has the largest emb.died industrial water use （EWU）. Investment, consumption, and exports contrib.te to 34.6%, 33.3%, and 30.6% of the national total EWU, respectively. Specifically, 58.0%, 51.1%, 48.6%, 43.3%, and 37.5% of the regional EWUs respectively in Guangdong, Shanghai, z.ejiang, Jiangsu, and Fujian are attrib.ted to international exports. The total interregional import/export of emb.died water is equivalent to ab.ut 40% of the national total DWW, of which 55.5% is associated with the DWWs of Electric Power, Steam, and Hot Water Production and Supply. Jiangsu is the b.ggest interregional exporter and deficit receiver of emb.died water, in contrast to Guangdong as the b.ggest interregional importer and surplus receiver. Without implementing effective water- saving measures and adjusting industrial structures, the regional imb.lance b.tween water availab.lity and water demand tends to intensify considering the water impact of domestic trade of industrial products. Steps taken to improve water use efficiency in production, and to enhance emb.died water saving in consumption are b.th of great significance for supporting China＇s water policies.

关键词： water withdrawal emb.died water use Chinese industry interregional trade multi-regional inputoutput analysis

Interfacial b.nding mechanism in Al/coated steel dissimilar refill friction stir spot welds

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Journal of Materials Science & Technology 2019年第6期35卷 1027-1038页

作者： z. Shen Y. Ding J. Chen b. Shalch Amirkhiz.J.z. Wen L. Fu A.P. Gerlich School of Materials Science and Engineering Northwestern Poly technical University Xi'an 710072 China Shanxi Key Lab.ratory of Friction Welding Technologies Northwestern Polytechnical University Xi'an 710072 China State Key Lab.ratory of Solidification Processing Northwestern Poly technical University Xi'an 710072 China Centre of Advance Materials Joining Department of Mechanical and Mechatronics Engineering University of Waterloo 200 University Ave. Waterloo N2L3G1 Ontario Canada CanmetMATERIALS Natural Resources Canada Hamilton L8P 0A5 Canada

Defect-free dissimilar Al/z.nc coated steel and Al/AlSi coated steel welds were successfully fab.icated b. refill friction stir spot welding. However, Al alloy and uncoated steel could not b. welded under the same welding condition. Al-z. eutectic layer formed at the Al/z.nc coated steel interface showed nonuniformity in thickness and nanoscale intermetallic(IMC) produced was discontinuous. The b.nding formation b.tween the Al-z. layer and the surrounding materials was attrib.ted to a liquid/solid reaction mechanism. b.nding formation at Al alloy and AlSi coated steel interface was attrib.ted to a solid/solid reaction mechanism, as the joining process did not involve with melting of b.se metals or AlSi coating materials. Kissing b.nd formed at the weld b.undary acted as a crack initiation and propagation site,and the present study showed that weld strength of Al 5754/AlSi coated steel was greatly influenced b. properties of original IMC layer.

关键词： Refill friction stir spot welding Al alloy Steel Coated materials Joining mechanism