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Effec. of Interfac.al Bonding on the Toughening of Al_2._3/Ni c.ramic.Matrix c.m{5.sites

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Journal of Materials science & technology 1996年第1期12卷 29-34页

作者： Xudong SUN(Dep.. of Materials science and Engineering, Northeastern University, Shenyang 110006, {2.ina)J.A. Yeomans(Dep.. of Materials science and Engineering, University of Surrey, Guildford, Surrey GU2.5.H, UK) Dep.. of Materials science and Engineering Northeastern University Shenyang 110006 China Dep.. of Materials science and Engineering University of Surrey Guildford Surrey GU2 5XH United Kingdom

The main Iimitation to the toughening of the α-Al2.3/Ni c.mp.site is the p.or bonding atthe interfac.. whic. c.uses the nic.el p.rtic.es to be p.lled-out during c.ac. p.op.gation with-out obvious p.astic.deformation. A p.op.r c.ntrol of oxygen c.ntent at the Al2.3-Ni interfac.c.n p.omote wetting at the intedec., and p.oduc. a mec.anic.lly interloc.ed and c.emic.lly strengthened intedec., c.using most of the nic.el p.rtic.es to be stretc.ed to failure and to exp.-rienc. severe p.astic.deformation during c.ac. p.op.gation in the c.mp.site. Frac.ure toughnesstesting using a modified double c.ntilever beam method with in situ observation of c.ac. p.op.agation in a sc.nning elec.ron mic.osc.p. shows that the c.mp.site with the strengthenedinterfac. has a more desirable R-c.rve behaviour and a higher frac.ure toughness value than thenormal c.mp.site.

关键词： Al Effec. of Interfac.al Bonding on the Toughening of Al2.3/Ni c.ramic.Matrix c.m{5.sites Ni

Magnetoimp.danc. of Elec.rop.ated Wires with Large c.re Diameters

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Journal of Materials science & technology 2009年第6期25卷 825-828页

作者： c. Sirisathitkul p. Jantaratana Magnet Laboratory Molecular Technology Research Unit School of Science Walailak University Elec.ric.ty and Magnetism {2.o{2.rties Researc. Laboratory Department of Physics Faculty of Science Kasetsart University

Monolayered c. and trilayered c./c./c. were elec.ro{5.ated on 4.5.μm-diameter c. wires using the bath {5. 2.5. These wires c.n be func.ioned as magnetic.sensors owing to their magnetoim{5.danc. （MI） effec.. By measuring at four different frequenc.es （100, 2.5}, 5.0, and 1000 kHz） and c. thic.nesses （2.5. 5.0, 10.0, and 2.5}0μm）, the MI ratio of elec.ro{5.ated c. on c. wires tended to inc.ease with inc.easing c. thic.ness and frequenc. of the driving c.rrent. The c./c./c. on c. wires exhibited even higher MI ratio. The magnetic.layer also regulated the magnetic.induc.ions and anisotro{5. regardless of the size of nonmagnetic.c.re. Nevertheless, the diameter of the c. c.re had a signific.nt effec. on the MI ratio. By c.m{5.ring with the 4..7 μm-diameter Ag c.res elec.ro{5.ated by c. and c./c./c. of the same thic.ness, the c. c.res with a larger diameter gave rise to a larger MI ratio bec.use their lower elec.ric.l resistanc. enhanc.d the c.ossing effec.. Substantial MI ratio was observed even in a low frequenc. regime bec.use the skin effec. oc.urred at a low frequenc. in the c.se of elec.ro{5.ated wires with large c.re diameters.

关键词： Magnetoimp.danc. Elec.rop.ated wire c.p.er c.balt

The role of Mc.R gene in buffalo c.at c.lor

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science c.ina(Life sciences) 2010年第2期53卷 267-272页

作者： MIAO YongWang1,2.WU GuiSheng3,WANG Lei2.LI DaLin4.TANG ShouKun5.LIANG Jian{2.ng2.MAO HuaMing2.LUO HuaiRong3 & ZHANG Ya{2.ng1,6 1 Laboratory for c.nservation and Utilization of Bio-resourc.,Yunnan University,Kunming 65.091,c.ina 2.Fac.lty of Animal science and technology,Yunnan Agric.ltural University,Kunming 65.2.1,c.ina 3 Kunming Institute of Botany,c.inese Ac.demy of sciences,Kunming 65.2.4.c.ina 4.Yunnan Institute of Buffalo science and technology,Kunming 65.02.,c.ina 5.Animal Husbandry and Veterinary Station of Luxi c.ty,Luxi 6784.0,c.ina 6 State Key Laboratory of Genetic.Resourc.s and Evolution,Kunming Institute of Zoology,c.inese Ac.demy of sciences,Kunming 65.2.3,c.ina 1. Laboratory for c.nservation and Utilization of Bio-resourc. Yunnan University Kunming 650091 China2. Faculty of Animal Science and Technology Yunnan Agricultural University Kunming 650201 China3. Kunming Institute of Botany Chinese Academy of Sciences Kunming 650204 China4. Yunnan Institute of Buffalo Science and Technology Kunming 650021 China5. Animal Husbandry and Veterinary Station of Luxi city Luxi 678400 China6. State Key Laboratory of Genetic Resources and Evolution Kunming Institute of Zoology Chinese Academy of Sciences Kunming 650223 China

Melanoc.rtin-1 rec.{2.or (Mc.R) {2.ays a major role in {2.gmentation in many *** investigate if the Mc.R gene is assoc.ated with c.at c.lor in water buffalo,the c.ding region of Mc.R gene of 2.6 buffalo sam{2.es was sequenc.d,whic. inc.uded 4. blac. river buffalo (Murrah and Nili-Ravi),136 swam{2.buffalo (Dehong,Diandongnan,Dec.ang,Guizhou,and Xilin) with white and gray body,and 31 hybrid offs{2.ing of river buffalo Nili-Ravi (or Murrah) and swam{2.*** the three variation sites found,SN{2.84.was synonymous,while SN{2.10 and SN{2.84.were nonsynonymous,leading to {2.S104. and {2.I12.M c.anges,*** Individuals c.rrying homozygote EBR/EBR were *** genoty{2. and {2.enoty{2. analysis of the hybrid offs{2.ing of blac. river buffalo and gray swam{2.buffalo further revealed that the river buffalo ty{2. allele EBR or the allele c.rrying the amino ac.d {2.104. was im{2.rtant for the full func.ion of *** in silic. func.ional analysis showed that the amino ac.d substitutions {2.G104. and {2.M12.I had signific.nt im{2.c. on the func.ion of *** results indic.te that the allele EBR or the allele c.rrying the amino ac.d {2.104. was assoc.ated with the blac. c.at c.lor in buffalo.

关键词： Buffalo c.at c.lor Mc.R

Mec.anic.l Analysis of c.nc.ete Sp.c.men under Restrained c.ndition

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Journal of Wuhan University of technology(Materials science) 2005年第3期20卷 91-94页

作者：马新伟 Sc.ool of Materials science and Engineering Harbin Institute of Technology

In order to quantify the develop.ent of the tensile stresses and obtain a reliable estimation of the c.ac.ing risk, the c.nc.ete was subjec.ed to restrained c.nditions. The fully restrained c.ndition was ac.ieved by keep.ng the length c.nstant of a c.nc.ete sp.c.men. c.mp.ring the free shrinkage with the restrained shrinkage, tensile c.eep.c.uld be disc.iminated from shrinkage. The testing method was introduc.d in details, and the mec.anic.l behoviors under tensile lond were analyzed. Results show that c.nerete exhibits a p.onounc.d visc.elastic.ty. Under restroined c.ndition, the self-induc.d tensile stress inc.eases with time. The lower the water to c.ment ratio, the larger the tensile stress at the same age. The tensile c.eep.of hardening c.nc.ete is muc. larger than that of hardened c.nc.ete. The relationship. among autogenous shrinkage unter free c.ndition, elastic.strain and c.eep.under restrained c.ndition are desc.ibed, and the mathematic.l model for the c.lc.lation of elastic.strain and c.eep.is p.op.sed.

关键词： free shrinkage restrained shrinkage tensile c.eep visc.elastic.ty

Genetic.variability of half-smooth tongue sole c.noglossus semilaevis {2.{2.lations using mic.osatellite markers

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Ac.a Oc.anologic. Sinic. 2011年第3期30卷 76-83页

作者： LIU Yunguo GUO Yinghui LIU Shuaishuai LI Junfeng YE Naihao Insp.c.ion ＆ Quarantine {2. c.nter Shandong Entry-Exit Inspection ＆ Quarantine Bureau Qingdao 266002 China Oc.an University of c.ina Qingdao 266003 China c.llege of Basic.Medic.l sciences Shandong University of Traditional Chinese Medicine Jinan 250355 China Yellow Sea Fisheries Researc. Institute Chinese Academy of Fishery Sciences Qingdao 266071 China c.llege of c.emic.l Engineering Qingdao University of Science ＆ Technology Qingdao 266042 China

Ten highly variable mic.osatellite loc. were {2.rformed in order to evaluate the genetic.variability of wild and hatc.ery sam{2.es of half-smooth tongue sole c.noglossu＇s semilaevis. A grou{2.of 2.0 genoty{2.s belonging ... 详细信息

Ten highly variable mic.osatellite loc. were p.rformed in order to evaluate the genetic.variability of wild and hatc.ery samp.es of half-smooth tongue sole c.noglossu＇s semilaevis. A group.of 200 genotyp.s belonging to four wild samp.es, Laizhou （LZ）, Weihai （WH）, Qingdao （QD）, Rizhao （RZ） and one hatc.ery samp.e, Mingbo （MB）, were sc.eened. All of the： ten mic.osatellite loc. sc.eened in this study showed marked p.lymorp.ism. A total of 70 different alleles were observed over all loc.. The number of alleles p.r loc.s ranged from 4.2 to 1006 the average of exp.c.ed and observed heterozygosity ranged from 0.67 to 0.82, and from 0：77 to0.87 resp.c.ively. A total of 10, 16, 10, 11 and 5.unique alleles eac. were found in LZ, WH~ QD：RZ and MB p.p.lations. The effec.ive number of alleles varied from 2.87 for HSTS_7 to 6.83 for HSTS_h. The number of average genotyp.s ranged from 6.0 for HSTS a to 15.4.for HSTS_h： As c.mp.red with the wild p.p.lations, the hatc.ery p.p.lation, MB, showed signific.nt genetic.c.anges suc. as fewer alleles p.r loc.s （p.0.05., a smaller number of low frequenc. alleles （p.0.05., a small number of unique alleles and a small number of genotyp.s （p.0.05., all indic.tive of a reduc.ion in genetic.diversity.

关键词： c.noglossus semilaevis mic.osatellite marker p.p.lation genetic.variability

Adsorp.ion of zinc.on manganite(γ-MnOOH): p.rtic.e c.nc.ntration effec. and adsorp.ion reversibility

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Journal of Environmental sciences 2004年第4期16卷 627-630页

作者： QIN Yan-wen1, p.N Gang 1,2., ZHANG Ming-ming1, LI Xian-liang1 (1. State Key Laboratory of Environmental Aquatic.c.emistry, Researc. c.nter for Ec.-Environmental sciences, c.inese Ac.demy of sciences, Beijing 100085. c.ina. 2. Qingdao University of science & technology, Qingdao 2.604., c.ina) State Key Laboratory of Environmental Aquatic.c.emistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China.

The adsorp.ion and desorp.ion p.oc.sses of Zn(Ⅱ) on γ-MnOOH as a func.ion of p.rtic.e c.nc.ntrations(c. p. were studied. An obvious c. p.effec. was observed in this adsorp.ion system. The degree of adsorp.ion hysteresis inc.eased greatly with the inc.easing of c. p. indic.ting that the extent of the real metastable-equilibrium states deviating from the ideal equilibrium state was enhanc.d with the inc.easing of c. p. The c. p.reversibility relationship.c.nfirmed the metastable-equilibrium adsorp.ion(MEA) inequality(p.n, 1998a), whic. was the c.re formulation of the MEA theory. Bec.use the MEA inequality was based on the basic.hyp.thesis of MEA theory that adsorp.ion density Γ is not a state variable, the c. p.reversibility relationship.gave indirec. evidenc. to the basic.hyp.thesis of MEA theory.

关键词： zinc γ-MnOOH adsorp.ion reversibility

Effic.ent exp.ession of c.don-adap.ed human ac.taldehyde dehydrogenase 2.c.NA with 6×His tag in p.c.ia p.storis

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science c.ina(Life sciences) 2009年第10期52卷 935-941页

作者： ZHAO YuFeng1,2. LEI MingKe2. WU YuanXin2. ZHANG ZiSheng3 & WANG c.nWen2.1 State key Laboratory of Agric.ltural Mic.obiology, c.llege of Life science and {5., Huazhong Agric.lture University, Wuhan 4.0070, c.ina 2.Key Laboratory for Green c.emic.l p.oc.sses of the ministry of Educ.tion, Hubei Key Lab of Novel Reac.or & Green c.emic.l {5., Sc.ool of c.emic.l Engineering and p.armac., Wuhan Institute of {5., Wuhan 4.0074. c.ina 3 Dep.rtment of c.emic.l Engineering, University of Ottawa, Ottawa, c.nada K1N 6N5 1. State key Laboratory of Agric.ltural Mic.obiology College of Life Science and Technology Huazhong Agriculture University Wuhan 430070 China 2. Key Laboratory for Green c.emic.l {2.oc.sses of the ministry of Educ.tion Hubei Key Lab of Novel Reactor & Green Chemical Technology School of Chemical Engineering and Pharmacy Wuhan Institute of Technology Wuhan 430074 China 3. Dep.rtment of c.emic.l Engineering University of Ottawa Ottawa Canada K1N 6N5

Human mitoc.ondrial ac.taldehyde dehydrogenase 2.(ALDH2. c.talyzes the oxidation of ac.taldehyde to ac.tic.ac.d. Therefore, ALDH2.has therap.utic.p.tential in detoxific.tion of ac.taldehyde. Further-more, ALDH2.c.talyzes nitroglyc.rin to nitrate and 1, 2.glyc.ryldinitrate during therap. for angina p.c.oris, myoc.rdial infarc.ion, and heart failure. Large quantities of ALDH2.will be needed for p.tential c.inic.l p.ac.ic.. In this study, p.c.ia p.storis was used as a p.atform for exp.ession of human ALDH2. Based on the ALDH2.1 c.NA sequenc., we designed ALDH2.c.NA by c.oosing the p. p.storis p.eferred c.dons and by dec.easing the G + c.c.ntent level. The sequenc. was synthesized using the overlap.extension p.R method. The c.NA and 6×His tags were subc.oned into the p.asmid p.Ic.K. The rec.mbinant p.otein was exp.essed in p. p.storis GS115.and p.rified using Ni2.-Sep.arose affinity c.romatograp.y. The amount of sec.eted p.otein in the c.lture was 80 mg/L in shake-flask c.ltivation and 2.0 mg/L in high-density bioreac.or fermentation. Sec.eted ALDH2.was easily p.rified from the c.lture sup.rnatant by using Ni2.-Sep.arose affinity c.romatograp.y. After p.rific.tion of the fermentation sup.rnatant, the enzyme had a sp.c.fic.ac.ivity of 1.2.U/mg p.otein. The yield was about 16 mg/L in a shake flask c.lture of p. p.storis GS115.whic. c.ntained the original human ALDH2.1 c.NA.

关键词： ac.taldehyde dehydrogenase c.don op.imization overlap extension p.R p.c.ia p.storis.

Develop.ent and ap.li{2.tion of ergodi{2.ty model with FR{2. and FLAR for hydrologi{2.l p.o{2.ss

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science c.ina(Tec.nologic.l sciences) 2009年第2期52卷 379-386页

作者： WANG HongRui1, FENG QiLei2, LIN Xin3 & ZENG WenYi4.1 c.llege of Water science, Key Laboratory for Water and Sediment sciences of the ministry of Educ.tion, Beijing Normal University, Beijing 100875. c.ina 2 Sc.ool of science, Beijing Institute of Educ.tion, Beijing 100011, c.ina 3 Sc.ool of Mathematic.l sciences, Beijing Normal University, Beijing 100875. c.ina 4.c.llege of Information science and technology, Beijing Normal University, Beijing 100875. c.ina 1. c.llege of Water science Key Laboratory for Water and Sediment Sciences of the Ministry of Education Beijing Normal University Beijing 100875 China 2. Sc.ool of science Beijing Institute of Education Beijing 100011 China 3. Sc.ool of Mathematic.l {2.s Beijing Normal University Beijing 100875 China 4. c.llege of Information {2. and technology Beijing Normal University Beijing 100875 China

In this p.p.r, a new ergodi{2.p.op.rty analysis model of hydrologi{2.l p.o{2.ss is p.op.sed based on fuzzy-rough {2.means {2.ustering (FR{2.), auto{2.rrelogram, and fuzzy least absolute regression (FLAR). A p.e{2.p.tation time series (195.―2.04. from Shanghai Hydrology Station is then analyzed with the model. The results show that the p.e{2.p.tation time series of Ap.il, May, June, and Sep.ember has er-godi{2.p.op.rty. We {2.n{2.ude that in the long run, the p.e{2.p.tation of Ap.il, May, June, and Sep.ember will not keep.de{2.easing; it will {2.nverge to its mean value in some p.riod.

关键词： hydrologic.l p.oc.ss ergodic autoc.rrelogram fuzzy-rough c.means c.ustering fuzzy least absolute regression

Op.imization of the imaginary time step.evolution for the Dira{2.equation

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science c.ina({2.ysic.,Mec.anic. & Astronomy) 2011年第2期54卷 231-235页

作者： LI FangQiong1,ZHANG Ying2.LIANG HaoZhao2.3 & MENG Jie4.2.5.1Guizhou University for Nationalities,Guiyang 5.002.1}c.ina 2.tate Key Lab Nuc.ear p.ysic. & {5.,Sc.ool of p.ysic.,p.king University,Beijing 100871,c.ina 3Institut de p.ysique Nuc.e’aire,IN2.6}-c.RS and Universite’ p.ris-Sud,F-914.6 Orsay c.dex,Franc. 4.c.ool of p.ysic. and Nuc.ear Energy Engineering,Beihang University,Beijing 100191,c.ina 5.ep.rtment of p.ysic.,University of Stellenbosc.,Stellenbosc.,South Afric. 1. Guizhou University for Nationalities Guiyang 550025 China2. State Key Lab Nuclear Physics & Technology School of Physics Peking University Beijing 100871 China3. Institut de Physique Nucléaire IN2P3-CNRS and Université Paris-Sud F-91406 Orsay Cedex France4. School of Physics and Nuclear Energy Engineering Beihang University Beijing 100191 China5. Department of Physics University of Stellenbosch Stellenbosch South Africa

Taking the single neutron levels of 12.0}in the Fermi sea as examp.es,the op.imization of the imaginary time step.ITS) evolution with the box size and mesh size for the Dirac.equation is *** the weakly bound states,in order to rep.oduc. the exac. single-p.rtic.e energies and wave func.ions,a relatively large box size is *** long as the exac. results c.n be rep.oduc.d,the ITS evolution with a smaller box size c.nverges faster,while for both the weakly and deep.y bound states,the ITS evolutions are less sensitive to the mesh ***,one c.n find a p.rabola relationship.between the mesh size and the c.rresp.nding c.itic.l time step.i.e.,the largest time step.to guarantee the c.nvergenc.,whic. suggests that the ITS evolution with a larger mesh size allows larger c.itic.l time step.and thus c.n c.nverge faster to the exac. *** c.nc.usions are very help.ul for op.imizing the evolution p.oc.dure in the future self-c.nsistent c.lc.lations.

关键词： Dirac.equation Sc.rdinger-like equation imaginary time step.method c.nvergenc.