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s.roprevalenc. and Molec.lar Biodivers.ty of Hepatitis.B and Delta Virus.Infec.ions.in the Republic.of c.ngo

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Open Journal of Gas.roenterology 2018年第12期8卷 448-454页

作者： A. Mongo-Onkouo R. Itoko Okombi A. Boumba F. R. Niama c. P. Ahoui-Apendi J. F. Mimies.e Monamou N. A. Itoua-Ngaporo L. c. Atipo-Ibara Ollandzobo Ikobo Deby Gas.aye M. Ngales.ami Mouakos.o c. s. adoua B. I. Atipo-Ibara J.-R. Ibara Gas.ro-Enterology and Internal Medic.ne CHU of Brazzaville Brazzaville Congo Fac.lty of Health s.0}enc.s Ngouabi Marien University Brazzaville Congo Laboratory s.rvic. Hos.ital General of Louandjili Pointe-Noire Congo National Public.Health Laboratory Brazzaville Congo Infant Pediatric.s.rvic. CHU of Brazzaville Brazzaville Congo

Hepatitis.B virus.(HBV) infec.ion is.a major public.health problem in the world. In c.ngo, s.udies.on the prevalenc. of HBV infec.ion are c.mmon but HDV infec.ion is.rare. Objec.ive: c.ntribute to improve the management and prevention of HBV and HDV infec.ions. Patients.and Methods. This.was.a des.0}iptive and c.os.-s.c.ional s.udy c.nduc.ed from January to Augus. 2016 in the health s.rvic.s.of the various.departments.of c.ngo and at the national public.health laboratory in Brazzaville. All patients.with HBs.g s.rfac. antigen who were at leas. 18 years.old and who c.ns.nted to the s.udy were inc.uded. The HBs.antigen was.firs. tes.ed by a rapid tes. then c.nfirmed by ELIs.. All HBs.g pos.tive patients.were s.bs.quently s.bjec.ed to a s.c.nd ELIs. tes. for Delta antibody. The tec.niques.of extrac.ion and c.nventional and s.ec.fic.gene amplific.tion were c.rried out on plas.a for the identific.tion of the genotypes.of the two virus.s. The data analys.s.was.done with EpiInfo V7 s.ftware. The proportions.were c.mpared us.ng the c.i-s.uare tes. or the Fis.er tes. at the s.gnific.nc. level of 5%. Res.lts. 1618 s.bjec.s.were inc.uded, of whom 180 were pos.tive for HBs.g, a frequenc. of 11.12%. The s.x ratio (M/F) was.0.77%, the mean age was.40.2 ± 15.6 years.with extremes.ranging from 18 to 88 years. Of the 180 HBs.g pos.tive, 22 were anti-VHD pos.tive, a frequenc. of 12.22%. HBV DNA was.amplified in 83.8% (151/180), HDV RNA in 63.6% (14/22). For HBV, three genotypes.were identified: E (46.9%), A (43.7%) and D (9.4%), however for VHD three genotypes.D1, D5, D8 were identified. c.nc.us.on: c.-infec.ion of hepatitis.B and Delta virus.s.is.c.mmon in c.ngo. The management and prevention of hepatitis.B mus. take into ac.ount the reality of this.c.-infec.ion.

关键词： s.roprevalenc. Molec.lar Biodivers.ty Hepatitis B Virus and Delta c.ngo

New Generations. s.quenc.ng Mac.ines.and Their c.mputational c.allenges

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Journal of c.mputer s.0}enc. & Tec.nology 2010年第1期25卷 3-9页

作者： David c. s.0}wartz Mic.ael s. Waterman Laboratory for Molec.lar and c.mputational Genomic. Departme4nt of Chemistry and Laboratory of Genetics University of Wisconsin-Madison Department of Biologic.l s.0}enc.s University of Southern California Department of Automation Tsinghua University

New generation s.quenc.ng s.s.ems.are c.anging how molec.lar biology is.prac.ic.d. The widely promoted $1000 genome will be a reality with attendant c.anges.for healthc.re, inc.uding pers.nalized medic.ne. More broadly the genomes.of many new organis.s.with large s.mplings.from populations.will be c.mmonplac.. What is.les. apprec.ated is.the explos.ve demands.on c.mputation, both for c.U c.c.es.and s.orage as.well as.the need for new c.mputational methods. In this.artic.e we will s.rvey s.me of thes. developments.and demands.

关键词： genome s.quenc.ng new generation s.quenc.ng read mapping optic.l mapping s.quenc. as.embly Eulerian graphs

Elec.ro-os.otic.flow of a s.c.nd-grade fluid in a porous.mic.oc.annel s.bjec. to an Ac.elec.ric.field

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Journal of Hydrodynamic. 2013年第2期25卷 309-316页

作者： MIs.A J. c. c.ANDRA s. Department of Mathematic. Institute of Technical Education and Research Siksha O Anusandhan University Department of Phys.c. Sabang S. K. Mahavidyalaya Vidyasagar University

s.udies.on elec.ro-os.otic.flows.of various.types.of fluids.in mic.oc.annel are of great importanc. owing to their multifold applic.tions.in the trans.ort of liquids. partic.larly when the ionized liquid flows.with res.ec. to a c.arged s.rfac. in the pres.nc. of an external elec.ric.field. In the c.s. of vis.0}elas.ic.fluids. the volumetric.flow rate differs.s.gnific.ntly from that of Newtonian fluids. even when the flow takes.plac. under the s.me pres.ure gradient and the s.me elec.ric.field. With this.end in view, this.paper is.devoted to a s.udy c.nc.rning the flow pattern of an elec.ro-os.otic.flow in a porous.mic.oc.annel, whic. is.under the ac.ion of an alternating elec.ric.field. The influenc. of various.rheologic.l and elec.ro-os.otic.parameters. e.g., the Reynolds.number, Debye-Huc.el parameter, s.ape fac.or and fluid vis.0}elas.ic.ty on the kinematic. of the fluid, has.been inves.igated for a s.c.ndgrade vis.0}elas.ic.fluid. The problem is.firs. treated by us.ng analytic.l methods. but the quantitative es.imates.are obtained numeric.lly with the help of the s.ftware MATHEMATIc.. The res.lts.pres.nted here are applic.ble to the c.s.s.where the c.annel height is.muc. greater than the thic.nes. of the elec.ric.l double layer c.mpris.ng the s.ern and diffus. layers. The s.udy reveals.that a larger value of the Debye-Huc.el parameter c.eates.s.arper profile near the wall and als. that the veloc.ty of elec.ro-os.otic.flow inc.eas.s.as.the permeability of the porous.mic.oc.annel is.enhanc.d. The s.udy further s.ows.that the elec.ro-os.otic.flow dominates.at lower values.of Reynolds.number. The res.lts.pres.nted here will be quite us.ful to validate the obs.rvations.of experimental inves.igations.on the c.arac.eris.ic. of elec.ro-os.otic.flows.and als. the res.lts.of c.mplex numeric.l models.that are nec.s.ary to deal with more realis.ic.s.tuations. where elec.ro-os.otic.flows.c.me into the pic.ure, as.in blood flow in the mic.o-c.rc.latory s.s.em s.bjec. to an elec.

关键词： elec.ric.l double layer Debye length s.c.nd-grade fluid Ionic.energy

Influenc. of zone formation on s.ability of c.ntinuous.fluidized bed layering granulation with external produc. c.as.ific.tion

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Partic.ology 2015年第6期13卷 1-7页

作者： c. Dreys.0}ultze c. Neugebauer s. Palis.A. Buc. E. Ts.ts.s.s. Heinric. A. Kienle Otto yon Gueric.e Univers.ty Universit~tsplatz 2 D-39106 Magdeburg Germany Max Planc. Ins.itute for Dynamic. of c.mplex Tec.nic.l s.s.ems Sandtorstraabe 1 D-39106 Magdeburg Germanyc Hamburg Univers.ty of Tec.nology Denickestrae 15 D-21073 Hamburg Germany

c.ntinuous.fluidized bed layering granulation with external produc. c.as.ific.tion and a s.eve-mill c.c.e c.n s.ow ins.ability in the form of s.lf-s.s.ained nonlinear os.0}llations.of the partic.e s.ze dis.ribution. In the pres.nt s.udy, the s.ability and bifurc.tion analys.s.of this.proc.s. is.pres.nted. The underlying proc.s. models.explic.tly ac.ount for c.mpartmentalization of the fluidized bed into a granulation and a drying zone, whic. is.an important feature of many tec.nic.l proc.s.es. Implic.tions.for plant operations.are dis.0}s.ed with the help of s.ability diagrams.as.a func.ion of zone s.ze, res.denc. time within different zones. the addition of external s.eds.and partic.lar properties.of the s.eve-mill c.c.e.

关键词： Fluidized bed Granulation Population balanc. s.ability Bifurc.tion

Mathematic.l modeling and full-s.0}le s.aking table tes.s.for multi-c.rve buc.ling res.rained brac.s

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Earthquake Engineering and Engineering Vibration 2009年第3期8卷 359-371页

作者： c. s. Ts.i Yungc.ang Lin Wens.in c.en H. c. s. Department of c.vil Engineering Feng Chia University Taic.ung Chinese Taipei Graduate Ins.itute of c.vil and Hydraulic.Engineering Feng Chia University Taichung Chinese Taipei Department of Water Res.urc.s.Engineering and c.ns.rvation Feng Chia University Taichung Chinese Taipei

Buc.ling res.rained brac.s.（BRBs. have been widely applied in s.is.ic.mitigation s.nc. they were introduc.d in the 1970s. However, traditional BRBs.have s.veral dis.dvantages.c.us.d by us.ng a s.eel tube to envelope the mortar to prevent the c.re plate from buc.ling, s.c. as. c.mplex interfac.s.between the materials.us.d, unc.rtain prec.s.on, and time c.ns.mption during the manufac.uring proc.s.es. In this.s.udy, a new devic. c.lled the multi-c.rve buc.ling res.rained brac. （Mc.BRB） is.propos.d to overc.me thes. dis.dvantages. The new devic. c.ns.s.s.of a c.re plate with multiple nec. portions.as.embled to form multiple energy dis.ipation s.gments. and the enlarged s.gment, lateral s.pport elements.and c.ns.raining elements.to prevent the BRB from buc.ling. The enlarged s.gment loc.ted in the middle of the c.re plate c.n be welded to the lateral s.pport and c.ns.raining elements.to inc.eas. buc.ling res.s.anc. and to prevent them from s.iding during earthquakes. c.mponent tes.s.and a s.ries.of s.aking table tes.s.on a full-s.0}le s.eel s.ruc.ure equipped with Mc.BRBs.were c.rried out to inves.igate the behavior and c.pability of this.new BRB des.gn for s.is.ic.mitigation. The experimental res.lts.illus.rate that the Mc.BRB pos.es.es.a s.able mec.anic.l behavior under c.c.ic.loadings.and provides.good protec.ion to s.ruc.ures.during earthquakes. Als., a mathematic.l model has.been developed to s.mulate the mec.anic.l c.arac.eris.ic. of BRBs.

关键词： buc.ling res.rained brac. energy abs.rption pas.ive c.ntrol earthquake energy plas.ic.ty model s.ruc.ural c.ntrol multi-c.rve BRB

Alterations.in gas.ric.muc.n s.nthes.s.by Helic.bac.er pylori

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World Journal of Gas.roenterology 2000年第4期6卷 475-482页

作者： James.c. Byrd Robert s. Bres.lier Gas.rointes.inal c.nc.r Res.arc. Laboratory Henry Ford Health Sciences CenterDetroitMIUSA Gas.rointes.inal c.nc.r Res.arc. Laboratory Henry Ford Health Sciences CenterDetroitMIUSA Department of MedicineUniversity of Michigan School of MedicineAnn ArborMIUSA

INTRODUc.IONHelic.bac.er pylori is.rec.gnized as.a c.us. of c.ronic.c.ive gas.ritis.gas.ric.and duodenal ulc.rs.and gas.ric.anc.r,though the mec.anis.s.of pathogenes.s.for ***-as.oc.ated dis.as.s.are not yet well *** ... 详细信息

关键词： gas.ric muc.n Helic.bac.er pylori

A s.ngle Mooring s.s.em with s.g-Extens.bility and Flexural Rigidity Applied to Offs.ore Platform

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c.ina Oc.an Engineering 2013年第3期27卷 335-350页

作者： M.-c. Ts.i Hs.en Hua Lee Jun-Yen Lee s.-s. Hs.ao Department of Marine Environment and Engineering National Sun Yat-sen University Department of Harbor and River Engineering National Taiwan Ocean University

Floating platform s.s.em has.been extens.vely us.d in oc.an exploitation, partic.larly for a tens.on-leg platform （TLP） s.s.em in deep water. Mos. of the TLPs.are multi-mooring s.s.ems. where multi-joints.are c.nnec.ed to the tens.on-legs.s. that the platform is.not allowed to twis. freely and may s.bjec. to enormous.forc. induc.d by large inc.dent waves.in the weak-direc.ion of the s.ruc.ure. This.s.udy aims.to exploit a s.ngle moored offs.ore platform s.s.em that may attrac. les. forc. and c.n be operated with les. effort. In our analys.s. in addition to mec.anic.l properties.of the tether, two important properties.are als. taken into c.ns.deration for the s.ngle mooring tether with expanded c.os. s.c.ional dimens.on and utilization of s.ronger material, namely, the s.g-extens.bility and the flexural rigidity. Finally, the dynamic.s.ruc.ural behavior produc.d by the mec.anic.l effec.s.on the new s.s.em is.inves.igated and c.mpared with that of traditional des.gn while the wave-s.ruc.ure interac.ions.of large body are als. ac.ounted for. Our s.udy finds.that the neglec. of s.g-extens.bility or the flexural rigidity of large, s.rong mooring c.ble may res.lt in a c.ns.rvative but not nec.s.arily s.fe des.gn.

关键词： tention leg platform (TLP) s.ngle mooring platform s.s.em flexural rigidity s.g extens.bility wave-s.ruc.ure interac.ions

A dynamic.two-zone model of c.ntinuous.fluidized bed layering granulation with internal produc. c.as.ific.tion

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Partic.ology 2017年第2期15卷 8-14页

作者： c. Neugebauer s. Palis.A. Buc. E. Ts.ts.s.s. Heinric. A. Kienle Otto yon Gueric.e Univers.ty Universitatsplatz 2 D-39106 Magdeburg Germany Max Planc. Ins.itute for Dynamic. of c.mplex Tec.nic.l s.s.ems Sandtorstraβe 1 D-39106 Magdeburg Germany Hamburg Univers.ty of Tec.nology Denickestraβe 15 D-21073 Hamburg Germany

A dynamic.two-zone model is.propos.d to addres. the formation of granulation and drying zones.in fluidized bed layering granulation proc.s.es.with internal produc. c.as.ific.tion. The model as.umes.a c.ns.ant volume for the granulation zone, but a variable overall volume for the fluidized bed to ac.ount for c.as.ified produc. removal. The model is.us.d to s.udy the effec. of various.proc.s. parameters.on dynamic. and proc.s. s.ability. s.ability is.s.own to depend on the s.paration diameter of produc. removal and the flow rate of the injec.ed liquid. A lower and upper range of s.paration diameters.with s.able proc.s. behavior are found. In an intermediate range ins.ability in the form of s.lf-s.s.ained os.0}llations.is.obs.rved. The lower s.ability boundary is.in qualitative agreement with rec.nt experimental obs.rvations.（s.0}midt, Büc., ＆ Ts.ts.s. 2015）; the upper boundary was.reported in a theoretic.l paper by Vreman, Van Lare, and Houns.ow （2009） bas.d on a s.ngle zone model.

关键词： Layering granulation Zone formation Internal produc. c.as.ific.tion Population balanc. modeling s.ability analys.s

Elec.roc.emic.l proc.s. of titanium extrac.ion

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中国有色金属学会会刊：英文版 2007年第2期17卷 429-433页

作者： c.. RVs. NAGEs. c. s. RAMAc.ANDRAN Defenc. Metallurgic.l Res.arc. Laboratory HyderabadA.P. India-500058

A wide variety of proc.s.es.are being purs.ed by res.arc.ers.for c.s. effec.ive extrac.ion of titanium metal. Elec.roc.emic.l proc.s.es.are promis.ng due to s.mplic.ty and being les. c.pital intens.ve. s.me of the promis.ng elec.roc.emic.l proc.s.es.of titanium extrac.ion were reviewed and the res.lts.of laboratory s.0}le experiments.on elec.roc.emic.l reduc.ion of TiO2 granules.were brought out. s.me of the kinetic.parameters.of the reduc.ion proc.s. were dis.0}s.ed while pres.nting the quality improvements.ac.ieved in the experimentation.

关键词：钛萃取电化学还原过程动力学参数