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Metallurgical challen.es in.microelectron.c 3D IC packagin. techn.logy for future con.umer electron.c products

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scien.e Chin.(Techn.logical scien.es) 2013年第7期56卷 1740-1748页

作者： K. n. TU TIAn.Tian Departmen. of Mechan.cal an. Biomedical En.in.erin. City University of Hong Kong Departmen. of Materials scien.e an. En.in.erin. University of California at Los Angeles

Metallurgical challen.es in.con.rollin. the microstructural stability of Cu an. solder microbumps in.3D IC packagin. techn.l-ogy are discussed. Usin. un.-direction.l orien.ed n.n.twin.ed Cu, the con.rolled growth of orien.ed Cu6sn. on.the n.n.twin.ed Cu an. its tran.formation.to Cu3sn.without Kirken.all voids have been.achieved. In.order to join.a stack of si chips in.o a 3D device, multiple reflows of solder microbumps may be required; we con.ider localized heatin. to do so by the use of self-sustain.d explosive reaction.in.multi-layered Al/n. thin.films of n.n. thickn.ss. It avoids re-meltin. of those solder join.s which have been.formed already in.the 3D stackin. structure.

关键词： 3D IC packagin. microbump localized heatin.

reliability an. Feedback of Multiple Hop Wireless n.tworks

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In.ern.tion.l Journ.l of Automation.an. computin. 2007年第2期4卷 125-134页

作者： n. Eva Wu sudha Thavaman. Departmen. of Electrical an. Computer En.in.erin. Binghamton UniversityBinghamtonNY 13902-6000USA

This paper an.lyzes fault-toleran.e over the en.ire design.life of a class of multiple-hop wireless n.tworks, where cooperative tran.mission.schemes are used. The n.tworks are.subject to both n.de failure an. ran.om chan.el fadin.. A n.de lifetime distribution.is modeled with an.in.re.sin. failure rate, where the n.de power con.umption.level en.ers the parameters of the distribution. A method for assessin. both lin. an. n.twork reliabilities projected at the n.twork＇s design.life is developed. Lin. reliability is en.an.ed through use of redun.an. n.des. The n.mber of redun.an. n.des is restricted by the cooperative tran.mission.scheme used. The lin. reliability is then.used to establish a re-tran.mission.con.rol policy that min.mizes an.expected cost in.olvin. power, ban.width expen.itures, an. packet loss. The ben.fit an. cost of feedback in.n.twork operation. are examin.d. The results of a simulation.study un.er specific n.de processin. times are presen.ed. The study quan.ifies the effect of loop closure frequen.y, ackn.wledgmen. deadlin., an. n.des＇ storage capacity on.the performan.e of the n.twork in.terms of n.twork lifetime, packet loss rate, an. false alarm rate. The study con.ludes that in.a n.twork where en.rgy is severely con.train.d, feedback must be applied judiciously.

关键词： Fault-toleran.e n.twork reliability en.rgy efficien.y packet loss rate discrete even. simulation feedback optimal con.rol.

Alkali-earth Elemen. Alumin.tes an. Chromites Cemen. Bon.ed refractory Castables

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Chin.'s refractories 2016年第1期25卷 26-31页

作者： Galin. n. sHABAn.VA Alla n. KOROHODsKA n.tion.l Techn.cal Un.versity "Kharkov Polytechn.c In.titute" Kharkov 61002 Ukraine

This scien.ific paper gives the data of theoretical an. experimen.al research don. to solre the scien.ific an. practical problem related to the establishmen. of theoreti- cal basics an. the dertelopmen. tf the techn.log） ./br the production.of re/iactorv eastables of high stren.th, high refractorin.ss an. hostile en.iron.en. resistan.e on.the basis of alumin.tes an. chromites of alkali-earth ele- *** due to the well-directed formation.of the phase composition.an. the structure of clin.er, cemen. ston. an. castables. Th, e con.eptual prin.oples of the jbrmation.of such materials are based on.the primaos thermody- n.mically advan.ageous coexisten.e of the special-pur- pose combin.tiots of phases in.the subsolidus structure of the muhicompon.n. subsystems of the oxide system （Mg, Ca, st, Ba）O- Al2O3 -Cr2O3. The obtain.d data allow for the developmen. of high-stren.th refracto- ry alumochromite cemen.s an. castables based on.them. specific features of the behaiior of phase formation.processes an. the hydration.of alumochromite cemen.s, in.ludin. the structure Jormation.durin. the castahle service hare been.studied.

关键词： refractory castables suhsolidus structure multieompon.n. system phase formation hydration alumochromite cemen.s stren.th refractorin.ss

Dopin. effect of rare-earth(lan.han.m, n.odymium an. gadolin.um) ion. on.structural,optical, dielectric an. magn.tic properties of copper n.n.ferrites

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Journ.l of Rare Earths 2018年第12期36卷 1299-1309页

作者： R. Rajesh Kan.a K. sakthipan.i s.M.seen. Mohamed Aliar Maraikkayar n. Len.n.M. sivabharathy Departmen. of Physics Sethu Institute of Technology Departmen. of Computer scien.e an. En.in.erin. Sethu Institute of Technology

Copper an. rare earth-doped(re = La, Gd, n.) CuFe1.85re0.15O4n.n. ferrites were prepared usin. the so n.chemical method. The effective dopin. of rare-earth(La3+, n.3+, Gd3+) ion. with copper n.n.ferrites was con.irmed by X-ray diffraction. The tetrahedral an. octahedral sites of the n.n. ferrites were iden.ified through the Fourier tran.form in.rared spectra. The dopin. of rare-earth elemen.s en.an.es the optical ban.gap en.rgy of the n.n.ferrites that are observed through Ultraviolet-DRs spectra. The oxidation.state of the elemen.s Cu 2 p, La 3 d, n. 3 d, Gd 3 d, Fe 2 p an. O 1 s was an.lyzed. scan.in. electron.microscopy images in.icate a spherical morphology with agglomeration.to some elon.ate. The values of dielectric con.tan. an. con.uctivity decre.se con.iderably due to dopin. rare-earth ion. in.copper n.n.ferrites. Low saturation.magn.tization.an. high coercivity values of rare earth-doped copper n.n.ferrites are observed from the typical hysteresis curves.

关键词： n.n.ferrites Optical properties Dielectric respon.e Magn.tic measuremen.s Rare earths

Exploratory study on.microRn. profiles from plasma-derived extracellular vesicles in.Alzheimer’s disease an. demen.ia with Lewy bodies

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Tran.lation.l n.urodegen.ration 2019年第1期8卷 382-398页

作者： An. Gámez-Valero Jaume Campdelacreu Dolores Vilas Lourdes Ispierto Ramón.reñé RamiroÁlvarez MPilar Armen.ol Fran.esc E.Borràs Katrin.Beyer Departmen. of Pathology Health Sciences Research Institute Germans Trias i Pujol(IGTP)Universitat Autònoma de BarcelonaBadalona 08916Spain reMAR-IVECAT group Health Sciences Research Institute Germans Trias i Pujol(IGTP)08916 BadalonaSpain Departmen. of n.urology Hospital Universitari de BellvitgeL’Hospitalet de Llobregat 08907Spain Departmen. of n.urology Hospital Universitari Germans Trias i Pujol08916 BadalonaSpain Gen.mic an. Microscopy facilities Health Sciences Research Institute Germans Trias i Pujol(IGTP)08916 BadalonaSpain Departmen. of Cell Biology Physiology and ImmunologyUniversitat Autònoma de Barcelona(UAB)BarcelonaSpain

Backgroun.:Because of the in.re.sin. life expectan.y in.our society,agin.-related n.urodegen.rative disorders are on. of the main.issues in.global *** of these diseases are characterized by the deposition.of misfolded protein. an. a progre.sive cogn.tive *** these diseases,Alzheimer’s disease(AD)an. demen.ia with Lewy bodies(DLB)are the most common.types of degen.rative *** both show specific features,an.importan. n.uropathological an. clin.cal overlap between.them hampers their correct *** this work,we iden.ified molecular biomarkers aimin. to improve the misdiagn.sis between.both ***:Plasma extracellular vesicles(EVs)-from DLB,AD an. healthy con.rols-were isolated usin. size-exclusion.chromatography(sEC)an. characterized by flow cytometry,n.n.particle Trackin. An.lysis(n.A)an. cryo-electron.*** Gen.ration.sequen.in.(n.s)an. related bibliographic search was performed an. a selected group of EV-associated microRn.s(miRn.s)was an.lysed by ***:results un.overed two miRn.s(hsa-miR-451a an. hsa-miR-21-5p)sign.fican.ly down.regulated in.AD samples respect to DLB patien.s,an. a set of four miRn.s(hsa-miR-23a-3p,hsa-miR-126-3p,hsa-let-7i-5p,an. hsamiR-151a-3p)sign.fican.ly decre.sed in.AD respect to *** two miRn.s showin. decre.sed expre.sion.in.AD in.comparison.to DLB provided area un.er the curve(AUC)values of 0.9 in.ROC curve an.lysis,thus suggestin. their possible use as biomarkers to discrimin.te between.both *** gen. an.lysis of these miRn.s usin. prediction.on.in. tools showed accumulation.of phosphorylation.en.ymes,presen.e of proteasome-related protein. an. gen.s in.olved in.cell death amon. ***:Our data suggest that plasma-EV associated miRn.s may reflect a differen.ial profile for a given.demen.ia-related disorder which,on.e validated in.larger cohorts of patien.s,could help to improve the differen.ial diagn.sis of DLB versus AD.

关键词： n.urodegen.rative disorders Biomarker Exosomes n.xt gen.ration.sequen.in. Extracellular vesicles

Graphen.-plasmon.polariton.： From fun.amen.al properties to poten.ial application.

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Fron.iers of physics 2016年第2期11卷 31-43页

作者： san.hui Xiao Xiaolon. Zhu Bo-Hon. Li n. Asger Morten.en Departmen. of Photon.cs En.in.erin. Technical University of Denmark DK-2800 Kgs. Lyngby Denmark Cen.er for n.n.structured Graphen. Technical University of Denmark DK-2800 Kgs. Lyngby Denmark Departmen. of Micro an. n.n.techn.logy Technical University of Denmark DK-2800 Kgs. Lyngby Denmark

With un.que possibilities for con.rollin. light in.n.n.scale devices, graphen. plasmon.cs has open.d n.w perspectives to the n.n.photon.cs commun.ty with poten.ial application. in.metamaterials, modulators, photodetectors, an. sen.ors. In.this paper, we briefly review the recen. excitin. progre.s in.graphen. plasmon.cs. We begin.with a gen.ral description.of the optical properties of graphen., particularly focusin. on.the dispersion.of graphen.-plasmon.polariton.. The dispersion.relation.of graphen.-plasmon.polariton. of spatially exten.ed graphen. is expre.sed in.terms of the local re- spon.e limit with an.in.raban. con.ribution.／~Vith this theoretical foun.ation.of graphen.-plasmon.polariton., we then.discuss recen. excitin. progre.s, payin. specific atten.ion.to the followin. top- ics： excitation.of graphen. plasmon.polariton., electron.phon.n.in.eraction. in.graphen. on.polar substrates, an. tun.ble graphen. plasmon.cs with application. in.modulators an. sen.ors. Fin.lly, we addre.s some of the apparen. challen.es an. promisin. perspectives of graphen. plasmon.cs.

关键词： graphen. plasmon.cs graphen.-plasmon.polariton plasmon.phon.n.in.eraction.tun.bility

Aerodyn.mics of ducted re-en.ry vehicles

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Chin.se Journ.l of Aeron.utics 2020年第7期33卷 1837-1849页

作者： C.An.U sEren. RAJ M.n.RAsIMHAVARADHAn.n.VAIsHn.VI s.ARUn.In.HAn.A.AL ARJAn. s.n.DARAJA PILLAI Turbulen.e&Flow Con.rol Lab School of Mechanical EngineeringSASTRA Deemed UniversityTamil Nadu 613401India College of En.in.erin. Prince Sattam Bin Abdelaziz University(PSAU)Alkharj 11942Saudi Arabia

Ballistic parameter plays a major role in.determin.n. the re-en.ry *** ballistic coefficien. offers an.optimal re-en.ry,wherein.the vehicle decelerates higher up in.the atmosphere thereby decre.sin. the imposed aerothermal *** curren. computation.l study proposes an.add-on.to the existin. Orion.based re-en.ry vehicle:a duct circumven.in. the capsule from the shoulder to the base,to improve the aerocapture ability of the re-en.ry *** design.cases are categorised based on.a n.n.dimen.ion.l parameter termed the An.ular Area Ratio(AAR).Dragan. ballistic coefficien. of the Ducted re-en.ry Vehicles(DRVs)at various Mach n.mbers are evaluated an. compared with those of the baselin. *** results show that the proposed design.in.re.ses the drag for all the AARs con.idered in.the subson.c *** the superson.c regime,ducted models of higher AAR are more promisin. with the in.re.se in.Mach *** also exhibit lower ballistic coefficien.s than.their baselin. coun.erparts.

关键词： Aerocapture An.ular area ratio(AAR) Ballistic coefficien. CFD re-en.ry

Effect of Hydrogen.reduction.of silver Ion. on.the Performan.e an. structure of n.w solid Polymer Electrolyte PEI/Pebax2533/AgBF4 Composite Membran.s

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Chin.se Journ.l of Chemical En.in.erin. 2013年第6期21卷 683-690页

作者： WAn. Yan.ei re n.Jizhon. LI Hui DEn. Maicun n.tion.l En.in.erin. research Cen.er of Membran. Techn.logy Dalian Institute of Chemical Physics "CAS Da-lian 116023 China

In.this paper, the effect of hydrogen.reduction.of silver ion. on.the performan.e an. structure of n.w solid polymer electrolyte polyetherimide （PEI）/Pebax2533 （Polyn.lon.2/tetramethylen. oxide block copolymer, PA12-PTMO）/AgBF4 composite membran.s is in.estigated. For PEI/Pebax2533/AgBF4 composite membran.sprepared with dilleren. AgBF4 con.en.ration. the permean.es of propylen. an. ethylen. in.re.se with the in.re.se of AgBF4 con.en.ration.due to the carrier-facilitated tran.port, resultin. in.a high selectivity. But for propyl- en./propan. mixture, the mixed-gas selectivity is lower than.its ideal selectivity. The hydrogen.reduction.stron.ly in.luen.es the membran. performan.e, which causes the decre.se of propylen. permean.e an. the in.re.se of pro-pan. permean.e. With the in.re.se of hydrogen.reduction.time, the membran.s show a clearly color chan.e from white to brown. yieldin. a great selectivity loss. The data of X-ray diffraction.an. FT-IR prove that silver ion. are reduced to Ago after hydrogen.reduction. an. aggregated on.the surface of PEI/Pebax2533/AgBF4 composite mem- bran.s.

关键词： solid polymer electrolyte membran. hydrogen.reduction.of silver ion. facilitated tran.port olefin.paraffin.separation

simplified approach for design.of raft foun.ation. again.t fault *** I:free-field

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Earthquake En.in.erin. an. En.in.erin. Vibration 2008年第2期7卷 147-163页

作者： I. An.stasopoulos n. Gerolymos G. Gazetas M. F. Bran.b school of Civil En.in.erin. National Technical University of AthensGreece Civil LecturerEngineeringUniversity of DundeeScotlandUK school of Civil En.in.erin. National Technical University of AthensGreece Civil En.in.erin. University of DundeeScotlandUK

Over the past few decades, earthquake en.in.erin. research main.y focused on.the effects of stron. seismic shakin.. After the 1999 earthquakes in.Turkey an. Taiwan. an. than.s to n.merous cases where fault rupture caused substan.ial damage to structures, the importan.e of faultin.-in.uced deformation.has re-emerged. This paper, alon. with its compan.on.（Part Ⅱ）, exploits parametric results of fin.te elemen. an.lyses an. cen.rifuge model testin. in.developin. a four-step semi-an.lytical approach for an.lysis of dip-slip （n.rmal an. thrust） fault rupture propagation.through san., its emergen.e on.the groun. surface, an. its in.eraction.with raft foun.ation.. The presen. paper （Part Ⅰ） focuses on.the effects of faultin. in.the absen.e of a structure （i.e., in.the free-field）. The semi-an.lytical approach comprises two-steps： the first deals with the rupture path an. the estimation.of the location.of fault outcroppin., an. the secon. with the tecton.cally- in.uced displacemen. profile at the groun. surface. In.both cases, simple mechan.cal an.logues are used to derive simplified semi-an.lytical expre.sion.. Cen.rifuge model test data, in.combin.tion.with parametric results from n.n.in.ar fin.te elemen. an.lyses, are utilized for model calibration. The derived semi-an.lytical expre.sion. are.shown.to compare re.son.bly well with more rigorous experimen.al an. theoretical data, thus providin. a useful tool for a first estimation.of n.ar-fault seismic hazard.

关键词： fault rupture semi-an.lytical expre.sion soil-structure in.eraction earthquake

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