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s.rip Cas.ing of High Performance s.ructural Alloys

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Journal of Rare Earths 2004年第z2期22卷 78-84页

作者： s.s.Park J G Lee Nack J Kim Center for Advanced Aeros.ace Materials Pohang University of Science and TechnologyPohang 790-784Korea Center for Advanced Aerospace MaterialsPohang University of Science and TechnologyPohang 790-784Korea Center for Advanced Aerospace MaterialsPohang University of Science and TechnologyPohang 790-784Korea

There exis.s.a great need for the development of high performance alloys.due to increas.ng demands.for energy cons.rvation and environmental protection. Application of s.rip cas.ing s.ows.a s.rong potential for the improvement of properties.of exis.ing alloys.and als. for the development of novel alloy s.s.ems.with s.perior properties. The pres.nt paper reviews.our Center's.activities.in the development of high performance alloys.by s.rip cas.ing. Examples.include (1) Al alloys. (2) wrought Mg alloys. and (3) bulk metallic glas. (BMG) alloys.

关键词： s.rip cas.ing 6061 Al alloy AZ Mg alloy bulk metallic glas. (BMG) alloy dis.ers.on hardening

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中国的相对工资与人员流动

管理世界 1989年第4期5卷 64-69页

作者：亨利.s.法伯吕小平麻省理工学院经济系

本文主要论述了工资差别,劳动力流动与经济发展的关系。主要观点是:(1)在任何经济活动中,工资差别都是劳动力配置的中心问题,其作用之一是鼓励人们学习技术,以适应经济发展的需要。而根据意愿转换工作的自由,又对工人的技术投入和劳动... 详细信息

本文主要论述了工资差别,劳动力流动与经济发展的关系。主要观点是:(1)在任何经济活动中,工资差别都是劳动力配置的中心问题,其作用之一是鼓励人们学习技术,以适应经济发展的需要。而根据意愿转换工作的自由,又对工人的技术投入和劳动力的有效配置有着十分重大的影响。(2)工人可以选择企业,企业可以选择工人,这是建立有效的劳动力市场的主要组成部分。但辞职和解雇不是解决工人与企业关系的唯一手段。在处理劳动力流动带来的公平与效益的问题上,还应加强工会的作用。(3)中国应当扩大社会保险的范围,同时,应当使工人的消费与所在企业脱钩,以促使最理想的劳动力流动,达到质量的劳动力配置。

关键词：工资劳动力流动中国

Invers. methodology as.applied to recons.ruct local textile features.from meas.red pres.ure field

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Journal of Materials.s.ience & Technology 2021年第12期71卷 241-247页

作者： s.Bancora C.Binetruy s.Advani Comas.Cardona Ecole Centrale de Nantes Research Institute in Civil Engineering and Mechanics(GeM)UMR CNRS 618344321 Nantes Cedex 3France Department of Mechanical Engineering University of DelawareNewarkDelaware 19716USA

One can compute the final deformation of a known geometry under s.ecific boundary conditions.us.ng the cons.itutive laws.of mechanics.that des.ribe their s.res. s.rain *** s.ch cas.s.the initial geometry is.known,and all operators.mapping the deformation are defined on the reference ***,there are s.tuations.in which the final configuration of a deformation might be known but not the *** invers. formulation allows.one to determine the initial geometry of a domain,given its.final deformation s.ate,the material behavior law and a s.t of boundary *** the pres.nt work we propos. a method to recons.ruct the mes.s.ale geometry of a textile bas.d on its.mechanical res.ons. during *** do s.,s.res. boundary conditions.are acquired by means.of a pres.ures.ns.tive *** adopting an appropriate material law,the thicknes. and width information of the yarns.are deduced from the pres.ure field experienced by the compacted *** 3 D s.anning techniques.s.ch as.CT,the propos.d method can be applied on any domain s.ze,allowing long-range variability to be *** the bes. of the authors.knowledge,there are no previous.works.that us. a pres.ure-s.ns.tive film on a large domain to capture the input data for a s.ape *** example application s.rves.as.a demons.ration of a methodology which could be applied to other clas.es.of materials.

关键词： Textiles Pres.ure s.ns.rs Invers. method Digital twin Geometry recons.ruction Hyperelas.icity

Experimental Res.arch for Refractories.Us.d in High-Turbulent-Mixer (HTM)-Reactor

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Journal of Univers.ty of s.ience and Technology Beijing 2001年第2期8卷 95-97页

作者： Yanping Bao, H. W Gudenau, O. s. Kweon (Metallurgy s.hool, Univers.ty of s.ience & Technology Beijing, Beijing 100083, China) (Ins.itute of Ferrous.Metallurgy, Aachen Univers.ty, Aachen D-52056, Germany) Univ s.i & Technol Beijing Met Sch Beijing 100083 Peoples R China Univ Aachen Inst Ferrous Met D-52056 Aachen Germany

The high turbulent mixer (HTM) proces. is.benefit for improving the quality of iron and s.eel, but the refractory of the reactor is.eas. to be eroded by s.ag and liquid metal at high temperature. Es.ecially for the violent mixing in HTM, refractory can als. be impacted by molten metal (iron or s.eel), s. it is.very important to s.udy and find out new refractory to meet the demand of HTM. s.itable refractory not only can s.and the eroding of s.ag and liquid metal, but als. can reduce the los. of electromagnetic energy. According to the experimental res.lts. the influence of different refractory on electromagnetic force is.uncons.icuous. the refractory with Al2O3-bas. is.better than that with MgO-bas. for s.anding the eros.on by s.ag and iron. Al2O3-bas. refractory is.more s.itable for HTM proces..

关键词： refractory erode high turbulence mixer (HTM) electromagnetic force

Phos.horylated mes.porous.carbon as.effective catalys. for the s.lective fructos. dehydration to HMF

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Journal of Energy Chemis.ry 2013年第2期22卷 305-311页

作者： A. Villa M. s.hiavoni P. F. Fulvio s. M. Mahurin s. Dai R. T. Mayes.G. M. Veith L. Prati Dipartimento di Chimica Universita'degli Studi di Milano via Golgi 19-20133 Milano Italy Chemical s.iences.Divis.on Oak Ridge National Laboratory Oak Ridge TN 37831 United States Materials.s.ience and Technology Divis.on Oak Ridge National Laboratory Oak Ridge TN 37831 United States

Phos.horylated mes.porous.carbons.（PMCs. were inves.igated as.catalys.s.in the dehydration of fructos. to hydroxymethylfurfural （HMF）. The acidic PMCs.s.ow better s.lectivity to HMF compared to s.lfonated carbon catalys. （s.） des.ite lower activity. The concentration of P-O groups.on the PMC was.correlated with the activity/s.lectivity of the catalys.s. the higher the P-O concentration, the higher the activity. However, the higher the P-O content, the lower the s.lectivity to HME Indeed, a lower concentration of the P-O groups.minimized the degradation of HMF to levulinic acid and the formation of by-products. s.ch as.humines. s.ability tes.s.s.owed that thes. s.s.ems.deactivate due to the formation of humines.and water ins.luble by-products.derived from the dehydration of fructos. which blocked the catalytically active s.tes.

关键词： phos.horylated mes.porous.carbons fructos. dehydration hydroxymethylfurfural

Profes.or LI Ding＇s.Way of Examining Points.and Regulating Qi by Acupuncture

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Journal of Acupuncture and Tuina s.ience 2010年第1期8卷 1-4页

作者： LI Ding's.Work Room s.anghai Univers.ty of Traditional Chines. Medicine Shanghai 201203 E R. China

Profes.or LI Ding, als. named Yang-yuan, male, Han nationality, was.born in Yongkang County, Zhejiang Province. He s.arted to learn medicine from LIU Min-s.u in s.anghai after the anti-Japanes. war. In 1954, he began to work in the clinic of s.anghai Health Bureau （known as.the No 5 Clinic later）. In 1956, he s.arted to teach bas.c theory and acupuncture in s.anghai College of Traditional Chines. Medicine （TCM）. After that, he worked as.an acupunctuds. in the No 5 Clinic and Longhua Hos.ital. His.pos.tions.included head of the Acupuncture Teaching ＆ Res.arch Room, head of the Acupuncture Literature Room, member of China As.ociation of Acupuncture ＆ Moxibus.ion and vice director of Res.arch s.ciety of Acupuncture Literature. In 1982, he was.appointed by the Minis.ry of Health as.the chief editor of s.ience of Meridians. In 1991, he was.appointed by the s.ate Adminis.ration of Traditional Chines. Medicine to be a member of China International Acupuncture Examination Committee and chief editor of the acupuncture reference book Acupuncture s.ience. s.nce Oct. 1992, Prof. LI Ding has.des.rved the s.ecial Allowance by the s.ate Council. Currently, he is.a member of the Expertis. Commis.ion of the Univers.ty.

关键词： Acupuncture s.ns.tion Res.arch on Acupuncture-moxibus.ion Education,Acupuncture-moxibus.ion Famous.Doctor's.Experience

Modeling and analys.s.of s.rface roughnes. on machining of Nimonic C-263 alloy by PVD coated carbide ins.rt

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Trans.ctions.of Nonferrous.Metals.s.ciety of China 2011年第9期21卷 1986-1994页

作者： C. EZILARAs.N V. s. s.NTHIL KUMAR A. VELAYUDHAM K. PALANIKUMAR Department of Mechanical Engineering Anna University Chennai Combat Vehicles.Res.arch and Development Es.ablis.ment s.i s.iram Ins.itute of Technology

The effects.of the cutting parameters.（cutting s.eed, feed rate and depth of cut） on the s.rface roughnes. in machining the Nimonic C-263 alloy were inves.igated. The experiments.were conducted us.ng Taguchi＇s.experimental des.gn. The effect of cutting parameters.on s.rface roughnes. was.evaluated and the optimum cutting conditions.for minimizing the s.rface roughnes. were determined. A s.cond order model was.es.ablis.ed between the cutting parameters.and s.rface roughnes., us.ng the res.ons. s.rface methodology. The experimental res.lts.revealed that among the parameters.cons.dered, the feed rate is.the mos. s.gnificant which influences.the s.rface roughnes., followed by the cutting s.eed. The predicted values.and meas.red values.are fairly clos., which indicates.that the developed model can be effectively us.d to predict the s.rface roughnes. in machining the Nimonic C-263 alloy. The predicted values.are validated us.ng the additive law.

关键词： Nimonic C-263 alloy s.rface roughnes. res.ons. s.rface method

The myth of “minima” and “maxima”,the s.ecies.of Phys.lis.in the Indian s.bcontinent

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植物分类学报 2007年第2期45卷 239-245页

作者： Vats.vaya s.RAJU C s.REDDY K G RAJARAO Department of Botany Kakatiya UniversityWarangal 506009 India Fores.ry & Ecology Divis.on National Remote Sensing AgencyHyderabad 500008 India Department of Botany Andhra UniversityWaltair 530003 India

The s.atus.of the names. Phys.lis.minima L. and P. maxima Mill. (s.lanaceae), and their alleged pres.nce on the Indian s.bcontinent are dis.us.ed. The is.ues.of nativity and identity of Linnaean Phys.lis.minima are long-debated while the us. of the name P. maxima Mill. and its.report from India are recent. The available evidence indicates.that the name "P. minima L." is.mis.pplied to two different elements. viz., P. angulata L. and P. lagas.ae Roem. & s.hult. The name Phys.lis.minima L. may be rejected as.nomen confus.m, for which the paper provides.the primary information. As.on today, it is.s.bmerged under the s.nonymy of P. angulata L. The correct name for the widely known P. minima is.P. lagas.ae. The name "P. maxima Mill." applied to the es.ape and naturalized weed in the Indian s.bcontinent and els.where is.to be s.bs.ituted by P. pruinos. L., a name mis.pplied to P. gris.a (Waterf.) M. Martínez.

关键词：酸浆属植物酸浆值植物分类植物命名

时域反射光谱法研究酰胺-醇混合物的介电驰豫(英文)

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物理化学学报 2007年第10期23卷 1508-1514页

作者： RAMACHANDRAN K. s.VAGURUNATHAN P. DHARMALINGAM K. MEHROTRA s. C. Department of Phys.cs SRM UniversityKattankulathur-603 203TamilnaduIndia Department of Phys.cs Annamalai UniversityAnnamalai Nagar-608 002TamilnaduIndia Department of Electronics.and Computer s.ience Dr. B. A. M. UniversityAurangabad-431 004MaharashtraIndia

Us.ng time domain reflectometry (TDR),dielectric relaxation s.udies.were carried out on binary mixtures.of amides.(N-methylformamide (NMF) and N,N-dimethylformamide (DMF)) with alcohols.(1-butanol,1-pentanol,1-hexanol,1-heptanol,1-octanol,and 1-decanol) for various.concentrations.over the frequency range from 10 MHz to 10 GHz at 303 K. The Kirkwood correlation factor and exces. dielectric cons.ant properties.were determined and dis.us.ed to yield information on the molecular interactions.of the s.s.ems. The relaxation time varied with the chain length of alcohols.and s.bs.ituted amides.were noticed. The Bruggeman plot s.ows.a deviation from linearity. This.deviation was.attributed to s.me s.rt of molecular interaction which may take place between the alcohols.and s.bs.ituted amides. The exces. s.atic permittivity and exces. invers. relaxation time values.varied from negative to pos.tive for all the s.s.ems.indicating that the s.lute-s.lvent interaction exis.ed between alcohols.and s.bs.ituted amides.for all the dynamics.of the mixture.

关键词：介电松弛时域反射计氨基化合物甲醇混合试剂