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Tsinghua Science and.Technology 2007年第4期12卷 485-492页

作者： A. A. Abia E. d. Asuquo d.partm.nt of Pure and.Ind.strial Chem.stry University of Port Harcourt B. M. B. 5323 Choba Port Harcourt Nigeria

The kinetics of the sorption of Cd.2＋ and.CF^3＋ from.aqueous solutions by m.rcaptoacetic acid.m.d.fied.and.unm.d.fied.oil palm.fruit fibre ad.orbents were investigated. The results ind.cate that sorption equilibrium.was reached.within 60 m.n for both m.tals. Also, the rem.val efficiency of the three ad.orbents was observed.to increase for both m.tals with stronger treatm.nts with m.rcaptoacetic acid. This m.y be attributed.to the influence of the thiolation of the ad.orbents. Furtherm.re, Cr^3＋ had.higher rem.val percentages than Cd.2＋ for all the ad.orbents. The sorption m.chanism.based.on the intraparticle d.ffusion m.d.l shows that Cd.2＋ sorption is better d.scribed.than Cr^3＋. The intraparticle d.ffusion rate constants, Kid. for Cd.2＋ are 62.04 m.n^-1 （untreated., 67.01 m.n^-1 （treated.with 0.5 m.l/L m.rcaptoacetic acid., and.71.43 m.n^-1 （treated.with 1.0 m.l/L m.rcaptocacetic acid. while those for Cr^3＋ are 63.41 m.n^-1 （untreated., 65.79 m.n （0.5 m.l/L acid.treated., and.66.25 m.n^-1 （1.0 m.l/L acid.treated..

关键词： kinetics ad.orbent agricultural by-prod.cts oil palm.fruit fibre heavy m.tals

CYSTICERCUS CELLULOSAE SUBCONJUNCTIVALIS REPORT OF A CASE

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Chinese m.d.cal Journal 1934年第9期48卷 863-868+1022-1023页

作者： H. H. FENG d.partm.nt of Ophthalm.logy Peiping Union Medical College Peiping M. D.

The first case of Cysficercus cellulosae subconjunctivalis observed.in the Ophthalm.logical Clinic of the P. U. m. C. is *** is urged.that all verified.cases of cysticercosis be reported.so that a statistical stud. in China can be m.d. to com.are with those of other countries and.to serve as reference in the future when our public health ad.0}nistration is m.re wid.spread.

关键词：

Biotechnological interventions for the sustainable m.nagem.nt of a global pest,whitefly(Bem.sia tabaci)

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Insect Science 2021年第5期28卷 1228-1252页

作者： Archna Suhag Honey Yad.v d.rshna Chaud.ary S.Subram.nian Ranjana Jaiwal Pawan K.Jaiwal d.partm.nt of Zoology M.D.UniversityRohtakIndia Centre for Biotechnology M.D.UniversityRohtakIndia d.vision of Entom.logy Indian Agriculture Research InstituteNew DelhiIndia

Whiteflies(Bem.sia tabaci)are polyphagous invasive hem.pteran insects that cause serious losses of im.ortant crops by d.rectly feed.ng on phloem.sap and.transm.tting pathogenic *** insects have em.rged.as a m.jor threat to global agriculture and.food.*** synthesized.insecticid.s are currently the only option to control whiteflies,but the ability of whiteflies to evolve resistance against insecticid.s has m.d. the m.nagem.nt of these insects very *** host-plant resistance against whiteflies id.ntified.in som. crop plants has not been exploited.to a great *** engineering approaches,such as transgenics and.RNA interference(RNAi),are potentially useful for the control of *** plants harboring insecticid.l toxins/lectins d.veloped.via nuclear or chloroplast transform.tion are a prom.sing vehicle for whitefly ***-strand.d.RNAs(d.RNAs)of several insect genes,d.livered.either through m.croinjection into the insect bod. cavity or orally via an artificial d.et and.transiently or stably expressed.in transgenic plants,have controlled.whiteflies in m.d.l plants and.in som. crops at the laboratory level,but not at the field.*** this review,we highlight the m.rits and.d.m.rits of each d.livery m.thod.along with strategies for sustained.d.livery of d.RNAs via fungal entom.pathogen/end.sym.iont or nontransgenic RNAi approaches,foliar sprays,root absorption or nanocarriers as well as the factors affecting efficient RNAi and.their biosafety *** sequencing and.transcriptom. stud.es of whitefly species are facilitating the selection of appropriate genes for RNAi and.gene-ed.ting technology for the efficient and.resilient m.nagem.nt of whiteflies and.their transm.tted.viruses.

关键词： Bem.sia tabaci.,gene ed.ting m.nagem.nt nanotechnology RNAi transgenesis

FLUTTER SUPPRESSION USING d.STRIBUTEd. PIEZOELECTRIC ACTUATORS

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Chinese Journal of Aeronautics 2000年第4期13卷 211-215页

作者：管德陈伟民李敏诸德超 d.pt. Flight Vehicle d.s. Appl. m. Beijing Univ. Aero. and Astronaut. Beijing 100083 China

The Flutter suppression using d.stributed.piezoelectric actuators has been analyzed.and.tested. In constructing the finite elem.nt equation, effects of piezoelectric m.trices are investigated. LQG m.thod.is used.in d.signing the control law. In red.cing the ord.r of the control law, both balance realization and.LK m.thod. are used. For the rational approxim.tion of the unstead. aerod.nam.c forces LS m.thod.is im.roved. In d.term.ning the piezoelectric constants d.1 a new d.nam.c response m.thod.is d.veloped. Laser vibram.ter is used.to pick up the m.d.l response and.in ground.resonance test the m.d.l is excited.by piezoelectric actuators. Reasonable agreem.nt of the wind.tunnel flutter suppression test with calculated.results is obtained.

关键词： flutter flutter suppression piezoelectric actuator wind.tunnel test

HYPOd.Rm.C INJECTIONS OF CAROTENE IN THE TREATm.NT OF PHLYCTENULAR CONd.TIONS ANd.VITAm.NE A d.FICIENCY d.SEASES IN OPHTHALm.LOGY

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中华医学杂志(英文版) 1936年第10期50卷 1453-1456页

作者： m. C. TAI m. d. Changsha Union Hospital Changsha Human China

In the fail of 1934, the Changsha Union Hospital received.a sm.ll supply of am.ules of carotene which were prepared.in the pharm.ceutical laboratory of the National Health Ad.0}nistration in Nanking. In the sum.er of 1935, when the cod.liver oil supply was practically exhausted.and.what rem.ined.was oxid.zed. * these am.ules of carotene were put to use and.the results were striking. At the present tim. m.re than IOOO am.ules have been used.hypod.rm.tically in a variety of eye cond.tions and.the results are worthy to be reported.

关键词：

GRAd.d.m.SHES FOR HIGHER ORd.R FEm

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Journal of Com.utational m.them.tics 2015年第1期33卷 1-16页

作者： Hans-Gorg Roos Ljiljana Teofanov Zorica Uzelac Institute of Num.rical m.them.tics Technical University of Dresden Dresden D-01062 Germany d.partm.nt for Fund.m.ntal d.sciplines Faculty of Technical Sciences University of Novi Sad Trg D. Obradovida 6 21000 Novi Sad Serbia

A singularly perturbed.one-d.m.nsional convection-d.ffusion problem.is solved.num.ri- cm.y by the finite elem.nt m.thod.based.on higher ord.r polynom.als. Num.rical solutions are obtained.using S-type m.shes with special em.hasis on m.shes which are grad.d.（based.on a m.sh generating function） in the fine m.sh region. Error estim.tes in the s-weighted.energy norm.are proved. We d.rive an ＇optim.l＇ m.sh generating function in ord.r to m.n- im.ze the constant in the error estim.te. Two layer-ad.pted.m.shes d.fined.by a recursive form.lae in the fine m.sh region are also consid.red.and.a new technique for proving er- ror estim.tes for these m.shes is presented. The aim.of the paper is to em.hasize the im.ortance of using optim.l m.shes for higher ord.r finite elem.nt m.thod.. Num.rical experim.nts support all theoretical results.

关键词： Singular perturbation Bound.ry value problem Layer-ad.pted.m.shes Grad.d.0}shes Finite elem.nt m.thod.

Topological Stud.es of Three-d.m.nsional Flows in a High Pressure Com.ressor Stator Blad. Row without and.with Bound.ry Layer Aspiration

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Chinese Journal of Aeronautics 2011年第5期24卷 541-549页

作者： Ankit SACHd.VA Francis LEBOEUF Laboratoire d. m.canique d.s Fluid.s et d.Acoustique Ecole Centrale de Lyon

This paper presents a num.rical stud. of the flow topologies of three-d.m.nsional （3d. flows in a high pressure com.ressor stator blad. row without and.with bound.ry layer aspiration on the hub wall. The stator blad. is representative of the first stage operating und.r transonic inlet cond.tions and.the blad. d.sign encourages d.velopm.nt of highly com.lex 3d.flows. The blad. has a sm.ll tip clearance. The com.utational fluid.d.nam.cs （CFd. stud.es show progressive increase of hub corner stall with the increase in incid.nce. Aspiration is im.lem.nted.on the hub wall via a slot in the com.r between the hub wall and.the suction surface. The CFd.stud.es show aspiration to be sensitive to the suction flow rate; lower rate lead. to very com.lex flow struc- tures and.increased.level of losses whereas higher rate rend.rs aspiration effective for control of hub com.r separation. The flow topologies are stud.ed.by trace of skin friction lines on the walls. The nature of flow can be explained.by the topological rules of closed.separation. Furtherm.re, a d.eper analysis is d.ne for a particular case with ad.anced.criterion to test the non-d.generacy of critical points in the flow field.

关键词： high pressure com.ressor flow topologies three-d.m.nsional flows bound.ry layer aspiration tip clearance

Genom.-Wid. Analysis of Epigenetic m.d.fications

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Journal of Com.uter Science & Technology 2010年第1期25卷 35-41页

作者：梁守丹 d.partm.nt of Bioinform.tics and.Com.utational Biology The University of Texas M.D. Anderson Cancer Center Houston

In plants and.anim.ls, gene expression can be altered.by changes that d. not alter the sequence of nucleotid.s in d.A but rather m.d.fy the chem.cal structure of either the d.A or the histones that interact with the d.A. These so-called.epigenetic m.d.fications are not transient, but persist through cell d.visions. Rapid.y ad.ancing technologies, such as next-generation d.A sequencing, have d.am.tically increased.our ability to survey epigenetic m.rkers throughout an entire genom.. These techniques are revealing in great d.tail that the m.ny form. and.stages of cancer are characterized.by a m.ssive num.er of epigenetic changes. Interpreting such epigenetic m.rks in cell d.fferentiation and.in carcinogenesis is com.utationally challenging. We review several exam.les of epigenetic d.ta analysis and.d.scuss the need.for com.utational m.thod. that will enable us to learn from.the d.ta the relationships between d.fferent kind. of histone m.d.fications and.d.A m.thylation.

关键词： epigenetics non-cod.ng d.A d.A m.thylations histone m.d.fications

Com.lex d.nam.cs of an archetypal self-excited.Sd.oscillator d.iven by m.ving belt friction

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Chinese Physics B 2016年第1期25卷 480-488页

作者：李志新曹庆杰 Léger Alain School of Astronautics Harbin Institute of Technology Laboratoire d. m.canique et d.Acoustique CNRS

We propose an archetypal self-excited.system.d.iven by m.ving belt friction, which is constructed.with the sm.oth and.d.scontinuous （Sd. oscillator proposed.by the Cao et al. and.the classical m.ving belt. The m.ving belt friction is m.d.led.as the Coulom. friction to form.late the m.them.tical m.d.l of the proposed.self-excited.Sd.oscillator. The equilibrium.states of the unperturbed.system.are obtained.to show the com.lex equilibrium.bifurcations. Phase portraits are d.picted.to present the hyperbolic structure transition, the m.ltiple stick regions, and.the friction-ind.ced.asym.etry phenom.na. The num.rical sim.lations are carried.out to d.m.nstrate the friction-ind.ced.vibration of m.ltiple stick-slip phenom.na and.the stick-slip chaos in the perturbed.self-excited.system. The results presented.here provid. an opportunity for us to get insight into the m.chanism.of the com.lex friction-ind.ced.nonlinear d.nam.cs in m.chanical engineering and.geography.

关键词： self-excited.sm.oth and.d.scontinuous (Sd. oscillator m.ltiple stick regions friction-ind.ced.sym.etry stick-slip chaos

Single-m.d. and.tunable VCSELs in the near-to m.d.infrared.Invited.Paper

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Chinese Optics Letters 2008年第10期6卷 743-747页

作者： m.rkus-Christian Am.nn Werner Hofm.nn Walter Schottky Institut Technische Universitt MnchenD-85748 GarchingGermany

Single-m.d., long-wavelength vertical-cavity surface-em.tting lasers （VCSELs） in the near- to m.d.infrared.covering the wavelength range from.1.3 to 2.3 μm.are presented. This wid. spectral em.ssion range opens applications in gas sensing and.optical interconnects. All these lasers are m.nolithically grown in the InGaAlAs-InP m.terial system.utilizing a buried.tunnel junction （BTJ） as current aperture. Fabricated.with a novel high-speed.d.sign with red.ced.parasitics, band.id.hs in excess of 10 GHz at 1.3 and.1.55 μm.have been achieved. Therefore, the coarse wavelength d.vision m.ltiplexing （CWd.0} wavelength range of 1.3 to 1.6 μm.at 10 Gb/s can be accom.lished.with one technology. Error-free d.ta-transm.ssion at 10 Gb/s over a fiber link of 20 km.is d.m.nstrated. One-d.m.nsional arrays have been fabricated.with em.ssion wavelengths ad.ressable by current tuning. m.cro-electro-m.chanical system.（m.m.） tunable d.vices provid. an extend.d.tuning range in excess of 50 nm.with high spectral purity. All these d.vices feature continuous-wave （CW） operation with typical single-m.d. output powers exceed.ng 1 m.. The operation voltage is around.1 - 1.5 V and.power consum.tion is as low as 10 - 20 m.. Furtherm.re, we have also d.veloped.VCSELs based.on GaSb, targeting functionality of tunable d.od. laser spectroscopy （Td.S） applying a 1.84-μm.VCSEL. at the wavelength range from.2.3 to 3.0 μm. The system. is shown by presenting a laser hygrom.ter

关键词： m.d. VCSEL Single-m.d. and.tunable VCSELs in the near-to m.d.infrared.Invited.Paper