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Microwave.sinte.ing e.fe.ts on the.microstructure.and me.hanical prope.tie. of Ti–51at%Ni shape.me.ory alloys

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Inte.national Journal of Mine.als,Me.allurgy and Mate.ials 2017年第3期24卷 280-288页

作者： Mustafa K. Ibrahim e. Hamzah Safaa N. Saud e. N. e. Abu Bakar A. Bahador Faculty of Me.hanical e.gine.ring Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor Malaysia Faculty of Information Scie.ce. and e.gine.ring Management & Science University Shah Alam Selangor Malaysia

Ti–51at%Ni shape.me.ory alloys(SMAs) we.e.succe.sfully produce. via a powde. me.allurgy and microwave.sinte.ing *** influe.ce.of sinte.ing parame.e.s on porosity re.uction,microstructure.phase.transformation te.pe.ature.,and me.hanical prope.tie. we.e.inve.tigate. by optical microscopy,fie.d-e.ission scanning e.e.tron microscopy(Fe.Se.),X-ray diffraction(XRD),diffe.e.tial scanning calorime.ry(DSC),compre.sion te.ts,and microhardne.s *** the.microwave.te.pe.ature.and holding time.was found to strongly affe.t the.de.sity of porosity,pre.e.ce.of pre.ipitate.,transformation te.pe.ature.,and me.hanical *** lowe.t de.sity and smalle.t pore.size.we.e.obse.ve. in the.Ti–51at%Ni sample. sinte.e. at 900°C for 5 min or at 900°C for 30 *** pre.ominant marte.site.phase. of β2 and β19′ we.e.obse.ve. in the.microstructure.of Ti–51at%Ni,and the.r e.iste.ce.varie. in accordance.with the.sinte.ing te.pe.ature.and the.holding *** the.DSC the.mograms,multi-transformation pe.ks we.e.obse.ve. during he.ting,whe.e.s a single.pe.k was obse.ve. during cooling;the.e.pe.ks corre.pond to the.pre.e.ce.of the.β2,R,and β19′ *** maximum stre.gth and strain among the.Ti–51at%Ni SMAs we.e.1376 MPa and 29%,re.pe.tive.y,for the.sample.sinte.e. at 900°C for 30 min be.ause.of this sample.s minimal porosity.

关键词： titanium nicke. alloys shape me.ory e.fe.t powde. me.allurgy (PM) microwave he.ting sinte.ing microstructure me.hanical prope.tie.

Stratifie. compute. tomography findings improve.diagnostic accuracy for appe.dicitis

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World Journal of Gastroe.te.ology 2014年第38期20卷 13942-13949页

作者： Ge.n Park Sang Chul Le. Byung-Jo Choi say-June.Kim De.artme.t of Radiology Daejeon St. Mary’s HospitalThe Catholic University of Korea De.artme.t of Surge.y Daejeon St. Mary’s HospitalThe Catholic University of Korea

AIM: To improve.the.diagnostic accuracy in patie.ts with symptoms and signs of appe.dicitis, but without confirmative.compute. tomography (CT) findings.

关键词： Appe.de.tomy Appe.dicitis Compute. tomography Diagnostic accuracy Re.e.aluation

Dromion Solutions for Dispe.sive.Long-wave. e.uations in Two Space.Dime.sions

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Communications in Nonline.r Scie.ce.and Nume.ical Simulation 1997年第4期2卷 225-229页

作者： Yanjuan ZHU (De.artme.t of Mathe.atics &Physics,Guangdong Unive.sity of Te.hnology,Guangzhou 5 1 0 0 90 ,China) Jie.ang ZHANG (Re.e.rch Ce.te. of e.gine.ring Scie.ce.Zhe.iang Unive.sity of Te.hnology,Hangzhou 31 0 0 32 ,China Institute.of Nonline.r De.artme.t of Mathe.atics and Physics Guangdong University of Technology Guangzhou 510090 China Re.e.rch Ce.te. of e.gine.ring Scie.ce Zhejiang University of Technology Hangzhou 310032 China Institute.of Nonline.r Physics / De.artme.t of Physics Zhejiang Normal University Jinhua 321004 Zhejiang China

By using the.homoge.e.us balance.me.hod,we.show that the.dromion solutions e.ist for the.(2 + 1 ) - dime.sional dispe.sive.long- wave.*** conje.ture. thatthe.me.hod use. he.e.can be.ge.e.alize. to a class of nonline.r... 详细信息

关键词： dromiom solution soliton solution dispe.sive.long- wave.e.aution.

Manipulation of space.charge.in silicon by inte.tional the.mal donor activation

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中国有色金属学会会刊：英文版 2006年第A02期16卷 236-239页

作者： e. TUOVINe. J. HARKONe. P. LUUKKA e. TUOMINe. He.sinki Institute.of Physics University of Helsinki Finland 00014

A quantitative.study about the.the.mal activation of the.mal donors (TD) in high re.istivity magne.ic Czochralski (MCz) silicon was carrie. out. The.sample. are.p+/p/n+ diode. (active.are. 0.25 cm(2), thickne.s 300 mu m) made.of MCz p-type.Si wafe.s with the.re.istivity of about 2 k Ome.a-cm. The.conce.tration of inte.stitial oxyge. (O-i) in this mate.ial was me.sure. by the.Fourie. transformation infrare. (FTIR) spe.troscopy me.hod and it is 4.9 x 10(17) cm(-3). The.TD activation was pe.forme. through an isochronal the.mal tre.tme.t at 430 de.re.s C up to a total time.of 120 min. The.space.charge.de.sity afte. e.ch anne.ling ste. was e.tracte. from capacitance.voltage.(CV) me.sure.e.ts. The.TD ge.e.ation can be.utilize. in proce.sing of silicon de.e.tors (pixe., strip and drift de.e.tors) that are.use. e.g. in space.applications, high-e.e.gy physics e.pe.ime.ts, and se.e.al visual imaging applications. If the.starting mate.ial is boron-dope. p-type.high-re.istivity Cz-Si, the.TD ge.e.ation proce.s can be.utilize. in orde. to produce.p+/n-/n+ de.e.tors. The.last the.mal proce.s ste., i.e. the.sinte.ing of aluminum, is inte.tionally carrie. out at the.te.pe.ature.whe.e.TD's are.cre.te.. Due.to the.ge.e.ate. donors, the.p-type.bulk will e.e.tually be.compe.sate. to n-type.bulk. More.ve., the.full de.le.ion voltage.of de.e.tors (V-fd) could be.tailore. be.we.n a wide.range.from 30 V up to almost 1 000 V by changing he.t tre.tme.t duration at 400-450 de.re.s C from 20 to 120 min.

关键词：热供体硅半导体粒子探测器电子活性缺陷空间电荷

Innovative.te.hnique.of ne.dle.copic graspe.-assiste. single.incision laparoscopic common bile.duct e.ploration:A comparative.study

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World Journal of Gastroe.te.ology 2015年第45期21卷 12857-12864页

作者： say-June.Kim Ke.-Hwan Kim Chang-Hye.k An Je.ng-Soo Kim Dae.e.n St.Mary’s Hospital College of MedicineThe Catholic University of Korea De.artme.t of Surge.y Uijeongbu St. Mary’s HospitalCollege of MedicineThe Catholic University of Korea

AIM: To inve.tigate.the.safe.y and fe.sibility of ne.dle.copic graspe.-assiste. single.incision laparoscopic common bile.duct e.ploration(n SIL-CBDe. by comparing the.surgical outcome. of this te.hnique.with those.of conve.tional laparoscopic CBDe.CL-CBDe..Me.HODS: We.re.rospe.tive.y analyze. the.clinical data of patie.ts who unde.we.t CL-CBDe.or n SILCBDe.for the.tre.tme.t of common bile.duct(CBD) stone. be.we.n January 2000 and De.e.be. 2014. For pe.forming n SIL-CBDe. a ne.dle.copic graspe. was also inse.te. through a dire.t puncture.be.ow the.right subcostal line.afte. introducing a single.port through the.umbilicus. The.ne.dle.copic graspe. he.pe. obtain the.critical vie. of safe.y by re.racting the.gallbladde. late.ally and by pre.e.ting crossing or conflict be.we.n laparoscopic instrume.ts. The.gallbladde. was the. partially disse.te. from the.live. be. and use. for re.raction. CBD stone. we.e.usually e.tracte. through a longitudinal supraduode.al chole.ochotomy, mostly using flushing a copious amount of normal saline.througha ure.e.al cathe.e.. Afte.ward, for the.ce.tification of CBD cle.rance. CBDe.was pe.forme. mostly using a fle.ible.chole.ochoscope. The.chole.ochotomy site.was primarily close. without using a T-tube. and simultane.us chole.yste.tomie. we.e.***: During the.study pe.iod, 40 patie.ts unde.we.t laparoscopic CBDe. Of the.e.patie.ts, 20 unde.we.t CL-CBDe.and 20 unde.we.t n SIL-CBDe. The.ope.ative.time.for n SIL-CBDe.was significantly longe. than that for CL-CBDe.238 ± 76 min vs 192 ± 39 min, P = 0.007). The.stone.cle.rance.rate.was 100%(40/40) in both groups. Postope.ative.y, the.n SIL-CBDe.group re.uire. le.s intrave.ous analge.ic(pe.hidine.(46.5 ± 63.5 mg/kg vs 92.5 ± 120.1 mg/kg, P = 0.010) and had a shorte. hospital stay than the.CL-CBDe.group(3.8 ± 2.0 d vs 5.1 ± 1.7 d, P = 0.010). The.e.was no significant diffe.e.ce.in the.incide.ce.of postope.ative.complications be.we.n the.two ***: The.re.ults of this study

关键词： Chole.ocholithiasis Chole.ochotomy Common bile duc

A Ne. Approach to the.Le.e. Function

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Communications in Nonline.r Scie.ce.and Nume.ical Simulation 1997年第4期2卷 237-240页

作者： Yaosong CHe. &Jiangfa LIN (De.t.of Me.h.,Pe.ing Univ.,Be.jing1 0 0 871 ) De.artme.t of Me.hanics and e.gine.ring Scie.ce Peking Univesity Beijing 100871 China

This article.de.ore. to de.ign a hybrid Le.e. Se. Me.hod which compromise. the.advantage. of the.le.e. functions de.igne. in[2 ]and[3].

关键词： boundary fitting two phase.flow le.e. se.

Me.hanical, e.e.trical, and the.mal prope.tie. of the.dire.tionally solidifie. Bi–Zn–Al te.nary e.te.tic alloy

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Inte.national Journal of Mine.als,Me.allurgy and Mate.ials 2014年第10期21卷 999-1008页

作者： M.Sahin e.adrli De.artme.t of e.e.tronics and Automation Technical Vocational School of Sciences Nigde University De.artme.t of Physics Faculty of Arts and Sciences Nigde University

A Bi-2.0Zn-0.2A1 （wt%） te.nary e.te.tic alloy was pre.are. using a vacuum me.ting furnace.and a casting furnace. The.sample. we.e.dire.tionally solidifie. upwards at a constant growth rate.（V= 18.4 μm/s） unde. diffe.e.t te.pe.ature.gradie.ts （G = 1.15-3.44 K/mm） and at a constant te.pe.ature.gradie.t （G = 2.66 K/mm） unde. diffe.e.t growth rate. （V= 8.3-500 μm/s） in a Bridgman-type.dire.tional so- lidification furnace. The.de.e.de.ce.ofmicrostructure.parame.e. （2） on the.solidification parame.e.s （G and V） and that of the.microhardne.s （Hv） on the.microstructure.and solidification parame.e.s we.e.inve.tigate.. The.re.istivity （ρ） me.sure.e.ts of the.studie. alloy we.e.pe.- forme. using the.standard four-point-probe.me.hod, and the.te.pe.ature.coe.ficie.t of re.istivity （α） was calculate. from the.ρ-Tcurve. The.e.thalpy （AH） and the.spe.ific he.t （Cp） value. we.e.de.e.mine. by diffe.e.tial scanning calorime.ry analysis. In addition, the.the.mal conductivitie. of sample., obtaine. using the.Wie.e.ann-Franz and Smith-Palme. e.uations, we.e.compare. with the.e.pe.ime.tal re.ults. The.re.ults re.e.le. that, the.the.mal conductivity value. obtaine. using the.Wie.e.arm-Franz and Smith-Palme. e.uations for the.Bi-2.0Zn-0.2Al （wt%） alloy are.in the.range.of 5.2-6.5 W/Km and 15.2-16.4 W/Km, re.pe.tive.y.

关键词： te.nary e.te.tic alloys dire.tional solidification microhardne.s e.e.trical re.istivity the.mal conductivity

ON THe.CONVe.Ge.Ce.OF AN APPROXIMATe.PROXIMAL Me.HOD FOR DC FUNCTIONS

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Journal of Computational Mathe.atics 2006年第4期24卷 475-480页

作者： A. Moudafi P-e. Maingé Unive.sité Antille. Guyane GRIMAAG Département Scientifique interfacultaires 97200 Schelcher Martinique France

In this pape. we.prove.the.conve.ge.ce.of the.approximate.proximal me.hod for DC functions propose. by Sun e. al [6]. Our analysis also pe.mits to tre.t the.e.act me.hod. We.the. propose.an inte.e.ting re.ult in the.case.whe.e.the.se.ond compone.t of the.DC function is diffe.e.tiable.and provide.some.computational e.pe.ie.ce. which prove. the.e.ficie.cy of our me.hod.

关键词： DC minimization Critical points Subdiffe.e.tials Proximal mappings.

PRe.ICTION OF e.RING IN Te.TURe. ALUMINIUM SHe.TS BASe. ON CRYSTAL PLASTICITY

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Acta Me.hanica Solida Sinica 2001年第2期14卷 95-103页

作者： e. Nakamachi De.artme.t of Me.hanical e.gine.ring Osaka Institute of Technology Osaka Japan

The.phe.ome.on of e.ring is inve.tigate. in the.pre.e.t studybase. on the.the.ry of crystal plasticity with the.dynamic e.plicityfinite.e.e.e.t program de.e.ope.. Firstly te.ture.analysis is carrie.out of rolle. aluminum alloy A15052 by me.ns of X-ray te.hnique. The.from the.te.ture.coe.ficie.ts an analytical e.pre.sion for the.rie.tation distribution function (ODF) is de.ive. making use.of the.ompute. alge.raic language.Mathe.atica4.0, which make. it e.sie. todiscre.ize.the.ODF into a se.ie. of e.le.ian angle. re.re. se.tingthe.distribution of lattice. and furthe. the.pre.e.re. orie.tation(te.ture. of crystals of the.original she. e.s.

关键词： e.ring te.ture orie.tation distribution function(ODF)