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Low te.pe.ature.oxidation of Cr-alloy.0} MoSi_2

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中国有色金属学会会刊：英文版 2007年第6期17卷 1282-1286页

作者： e. Strom y. Cao y. M. y.o Kanthal AB Box 502 SE-734 27 Hallstahammar Sweden De.artme.t of Mate.ials and Manufacturing Te.hnology Chalmers University Technology SE-412 96 Gothenburg Sweden

Cr-alloy.0} MoSi2 was compare. with monolithic MoSi2 with re.pe.t to oxidation at 450 ℃ for 456 h. Phase. forme. on Cr-alloy.0} MoSi2 afte. e.posure.are.Cr2(MoO4)3, MoO3, and cristobalite.(SiO2) according to X-ray.diffraction re.ults. Monolithic MoSi2 forms MoO3 and mainly.amorphous SiO2. X-ray.photoe.e.tron spe.troscopy.indicate. that the.main oxidation product on the.oute.most surface.is SiO2 for all studie. sample.. The.sample. form a re.ative.y.loose.oxide.but the.oxide.adhe.e.ce.improve. with incre.sing Cr conte.t. It is indicate. that Cr addition can be.e.it pe.ting control in MoSi2.

关键词：钼硅化合物合金有害物氧化作用

Sy.the.is and Antimicrobial Activity.of Some.Conde.se. [4-（2,4,6-Trime.hy.phe.y.）-1 （2H）-oxo-phthalazin-2-y.]ace.ic Acid Hy.razide

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Chine.e.Journal of Che.istry 2012年第3期30卷 616-626页

作者： e.-Hashash, Mahe.A e.-kady, Ahme.y.Taha, Mamdouh A e.-Shamy. Ibrahim e Che.istry.De.artme.t Faculty of Science Ain Shams University Cairo Egypt Che.istry.De.artme.t Faculty of Science Fayoum University Fayoum Egypt

Some.ne. 1,2,4-triazolo-, 1,3,4-oxadiazolo-, 1,3,4-thiadiazol-, and py.azolo-2,4,6-trime.hy.phe.y.-1（2H）-oxo- phthalazine.de.ivative. we.e.sy.the.ize. and ide.tifie. by.IR, ^1H NMR, ^13C NMR, MS and e.e.e.tal analy.... 详细信息

关键词： 1(2H)-oxo-phthalazine 1,2,4-triazole 1,3,4-oxadiazole 1,3,4-thiadiazole antimicrobial activity

Analy.ical solutions of uniform e.te.de. dislocations and tractions ove. a circular are. in anisotropic magne.oe.e.troe.astic bimate.ials

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Acta Me.hanica Sinica 2013年第1期29卷 73-84页

作者： y.-F. Zhao X.-C. Shang e. Pan De.t. of Civil e.gine.ring University of Akron De.t. of Applie. Me.hanics University of Science and Technology

In this pape., we.de.ive.the.analy.ical solutions in a thre.-dime.sional anisotropic magne.oe.e.troe.astic bimate.ial space.subje.t to uniform e.te.de. dislocations and tractions within a horizontal circular are.. By.virtue.of the.Stroh formalism and Fourie. transformation, the.final e.pre.sion of solutions in the.phy.ical domain contains only.line.inte.rals ove. [0, 2π] rathe. than infinite.inte.rals. As the.re.uce. case., the.half-space.and homoge.e.us full-space.solutions can be.dire.tly.de.ive. from the.pre.e.t solutions. Also, in te.ms of mate.ial domains, the.pre.e.t solutions can be.re.uce. to the.pie.oe.e.tric, pie.omagne.ic, pure.y.e.astic mate.ials with diffe.e.t sy.me.rie. of mate.ial prop- e.ty. To carry.out nume.ical calculations, Gauss quadrature.is adopte.. In the.nume.ical e.ample., the.e.fe.t of diffe.e.t loading locations on the.re.ponse.at the.inte.face.is analy.e.. It is shown that, whe. the.magne.ic traction or e.e.tric dislocation is applie., the.phy.ical quantitie. on the.inte.face.may.not de.re.se.monotonically.as the.loading are. move. away.from the.inte.face. The.distributions of diffe.e.t in-plane.phy.ical quantitie. on the.uppe. and lowe. inte.face. unde. various e.te.de. horizontal loadings are.compare. and the.diffe.e.ce. are.discusse.. The.work pre.e.te. in this pape. can se.ve.as be.chmarks for future.nume.ical studie. in re.ate. re.e.rch fie.ds.

关键词： Anisotropic bimate.ial space. Magne.oe.e.troe. lastic e.te.de. dislocations e.te.de. tractions Circular loading Analy.ic solutions

e.e.troche.ical Re.ction Proce.se. of Niobium Ions in FLINAK me.t

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Inte.national Journal of Mine.als,Me.allurgy.and Mate.ials 1999年第2期13卷 83-89页

作者： Wang, Xindong Duan, Shuzhe. Christe.se., e. Bje.rum, N.J. Ito, y. Me.allurgy.School University of Science and Technology Beijing Beijing 100083 China Mate.ials Scie.ce.Group Chemistry Department A Technical University of Denmark DK-2800 Lyngby Denmark De.artme.t of e.e.gy.Scie.ce.and e.gine.ring Kyoto University Kyoto 606 Japan

The.athodicProce.sme.hanismofniobiumre.uctionfromchloride.fluoride.ndfiuoride.e.tshasbe.nstudie.inde.ail[l-],batth***,thre.hoe.ofmode.shaVe.e.nPutforwardtoe.plainthe.le.troche.ic... 详细信息

The.athodicProce.sme.hanismofniobiumre.uctionfromchloride.fluoride.ndfiuoride.e.tshasbe.nstudie.inde.ail[l-],batth***,thre.hoe.ofmode.shaVe.e.nPutforwardtoe.plainthe.le.troche.ic...

关键词： e.e.troche.istry molte. Salt FLINAK niobium re.uction

Solve.t e.traction and re.ove.y.of y.Ⅲ) and y.(Ⅲ) from fluorspar mine.al

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Inte.national Journal of Mine.als,Me.allurgy.and Mate.ials 2013年第8期20卷 713-719页

作者： y.A.e.-Nadi N.e.e.-He.ny.H.F.Aly Hot Laboratorie. Ce.tre Atomic Energy Authority13759Egypt Faculty.of Scie.ce Jazan UniversityJazan 2097Saudi Arabia

y.trium and y.te.bium we.e.e.tracte. from sulfuric acid me.ium using triphe.y.arsine.（TPAs） dissolve. in ke.ose.e. The.influe.ce.of diffe.e.t factors, such as shaking time. e.tractants, me.al ions, sulfate.ion conce.trations, as we.l as te.pe.ature. was studie. in de.ail. From the.slope.analy.is me.hod and IR me.sure.e.ts, the.structure.of the.e.tracte. spe.ie. was sugge.te. as MSO4（HSO4）.TPAs, whe.e.M re.e.s to y.III） or y.（III）. The.e.uilibrium constants （Ke.） and the.mody.amic parame.e.s, such as the.change.in e.thalpy.（△H）, fre. e.e.gy.（△G）, and e.tropy.（△S）, we.e.calculate.. The.me.hod of e.traction and stripping was applie. to obtain the.afore.e.tione. me.als from a sample.of fluorspar mine.al giving a re.ove.y.y.e.d of 88.2% and 83.5% for y.trium and y.te.bium, re.pe.tive.y.

关键词： y.trium y.te.bium e.traction fluorspar triphe.y.arsine

Influe.ce. of Ag and Au Additions on Structure.and Te.sile.Stre.gth of Sn-5Sb Le.d Fre. Solde. Alloy

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Journal of Mate.ials Scie.ce.& Te.hnology 2008年第6期24卷 921-925页

作者： A.A.e.-Daly.y.Swile. A.e.Hammad Phy.ics De.artme.t Faculty of ScienceZagazig UniversityZagazigEgypt

It is important, for e.e.tronic application, to de.re.se.the.me.ting point of Sn-5Sb solde. alloy.be.ause.it is re.ative.y.high as compare. with the.most popular e.te.tic Pb-Sn solde. alloy. Adding Au or Ag can de.re.se.the.onse. me.ting te.pe.ature.（233℃） of this alloy.to 203,5℃ and 216℃, re.pe.tive.y. The.re.ults indicate.that the.Sn-5Sb-i.5Au alloy.has ve.y.good ultimate.te.sile.stre.gth （UTS）, ductility. and fusion he.t, which are.be.te. than both those.of the.*** and Sn-5Sb alloy.. The.formation of inte.me.allic compounds （IMCs） AuSn4 and Ag3Sn e.hance. the.SbSn pre.ipitate. in the.solidification microstructure.microstructure.stability. while.re.aine. the.formation of thus significantly.improve. the.stre.gth and ductility.For all alloy., both UTS and y.e.d stre.s （σy. incre.se.with incre.sing strain rate.and de.re.se.with incre.sing te.pe.ature.in te.sile.te.ts, but change. of ductility.are.ge.e.ally.small with inconsiste.t tre.ds.

关键词： Sn-Sb solde. Le.d-fre. solde. Me.ting te.pe.ature Te.sile.stre.gth

e.zy.atic oxidation of aque.us pe.tachlorophe.ol

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Journal of e.vironme.tal Scie.ce. 2007年第9期19卷 1032-1036页

作者： e. y. Kim H. J. Chae.K. H. Chu De.artme.t of Che.ical e.gine.ring The University of Seoul Seoul 130-743 Korea. De.artme.ts of Food and Biote.hnology.and Innovative.Industrial Te.hnology Hoseo University Asan 336-795 Korea Hone.we.l Proce.s Solutions 17 Changi Business Park Central 1 Singapore 486073

The.influe.ce.of the.nonionic surfactant Twe.n 80 on pe.tachlorophe.ol （PCP） oxidation cataly.e. by.horse.adish pe.oxidase.was studie.. The.surfactant was te.te. at conce.trations be.ow and above.its critical mice.le.conce.tration （CMC）. e.hance.e.t of PCP re.oval was obse.ve. at sub-CMCs. The.pre.e.ce.of Twe.n 80 in the.re.ction mixture.re.uce. e.zy.e.inactivation which occurre. through a combination of fre. radical attack and sorption by.pre.ipitate. products. A simple.first-orde. mode. was able.to simulate.time.profile. for e.zy.e.inactivation in the.pre.e.ce.or abse.ce.of Twe.n 80. At supra-CMCs, the.surfactant cause. notice.ble.re.uctions in PCP re.oval, pre.umably.through mice.le.partitioning of PCP which pre.lude. the.hy.rophobic PCP mole.ule.from inte.acting with the.e.zy.e.

关键词： biocataly.is horse.adish pe.oxidase pe.tachlorophe.ol surfactant

On the.e.timation of Solutions for Some.Line.r Sy.te.s of Diffe.e.tial e.uations

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Acta Mathe.atica Sinica,e.glish Se.ie. 1998年第1期14卷 41-46页

作者： L. R. Awad e. M. e.-Kholy.Sh. e.-Be.dary Unive.sitat Hamburg Institut fur Ange.andte.Mathe.atik Bundesstraβe 55 20146 Hamburg Germany

In this pape. we.e.timate.the.solutions of homoge.e.us line.r sy.te. of diffe.e.tial e.uations with unbounde. coe.ficie.ts on the.re.l line.R. We.also give.a ne.e.sary.and sufficie.t condition in orde. that the.line.r... 详细信息

关键词： Homoge.e.us line.r Unbounde. coe.ficie.t

Growth pe.formance.oxidative.stre.s and immune.status of ne.ly.we.ne. pigs fe. pe.oxidize. lipids with or without supple.e.tal vitamin e.or poly.he.ols

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Journal of Animal Scie.ce.and Biote.hnology 2020年第3期11卷 819-829页

作者： y.V.Silva-Guille. C.Are.lano R.D.Boy. G.Martine. e.van He.gte. De.artme.t of Animal Scie.ce North Carolina State UniversityRaleighNC 27695USA De.artme.t of Statistics North Carolina State UniversityRaleighNC 27695USA The.Hanor Company.Inc FranklinKY 42134USA

Background:This study.e.aluate. the.use.of die.ary.vitamin e.and poly.he.ols on growth,immune.and oxidative.status of we.ne. pigs fe. pe.oxidize. lipids.A total of 192 pigle.s(21 day. of age.and body.we.ght of 6.62±1.04 kg)we.e.assigne. within se. and we.ght blocks to a 2×3 factorial arrange.e.t using 48 pe.s with 4 pigs pe. *** tre.tme.ts consiste. of lipid pe.oxidation(6%e.ible.soy.e.n oil or 6%pe.oxidize. soy.e.n oil),and antioxidant supple.e.tation(control die. containing 33 IU/kg DL-α-tocophe.y.-ace.ate.control with 200 IU/kg additional dl-α-tocophe.y.-ace.ate.or control with 400 mg/kg poly.he.ols).Pigs we.e.fe. in 2 phase. for 14 and 21 day.,***:Pe.oxidation of oil for 12 day. at 80°C with e.posure.to 50 L/min of air substantially.incre.se. pe.oxide.value.,anisidine.value.he.anal,and 2,4-de.adie.al *** pe.oxidize. lipids de.re.se.(Py.we.ght(23.16 vs.18.74 kg),daily.gain(473 vs.346 g/d),daily.fe.d intake.658 vs.535 g/d)and gain:fe.d ratio(719 vs.647 g/kg).Lipid pe.oxidation de.re.se. se.um vitamin e.Pe.re.se.was large. on day.35(1.82 vs.0.81 mg/kg)than day.14(1.95 vs.1.38 mg/kg).Supple.e.tal vitamin e.but not poly.he.ols,incre.se.(P≤0.002)se.um vitamin e.by.84%and 22%for control and pe.oxidize. die.s,re.pe.tive.y.inte.action,P=0.001).Se.um malondialde.y.e.de.re.se.(Pe.oxidation on day.14,but not day.35 and prote.n carbony. incre.se.(Pe.oxidation on day.35,but not day.*** 8-hy.roxy.e.xy.uanosine.was not affe.te.(P>0.05).Total antioxidant capacity.de.re.se. with pe.oxidation(Pe.se. with vitamin e.P=0.065)and poly.he.ols(P=0.046)for the.control oil die. *** cy.okine.conce.trations incre.se. with fe.ding pe.oxidize. lipids on day.35,but we.e.not affe.te. by.antioxidant supple.e.tation(P>0.05).Conclusion:Fe.ding pe.oxidize. lipids ne.ative.y.impacte. growth pe.formance.and antioxidant capacity.of nurse.y.*** of vitamin e.and po

关键词： Antioxidants Immune.status Lipid pe.oxidation Oxidative.stre.s Pigle.s Poly.he.ols Vitamin e