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Source apportionment of atmospheric particul.te carbon in l.s Vegas,Nevada,USA

Particuol.gy 2013年第1期11卷 110-118页

作者： Mark C.Green Judith C.Chow M.-C.Ol.ver Chang l.-w.Antony Chen Hampden D.Kuhns Vicken R.Etyemezian John G.watson Division of Atmospheric Sciences Desert Research Institute2215 Raggio ParkwayRenoNV 89512USA Division of Atmospheric Sciences Desert Research Institute.2215 Raggio ParkwayRenoNV 89512USA State Key l.boratory of l.ess and Quaternary Geol.gy Institute of Earth EnvironmentChinese Academy of SciencesXi'anChina Cal.fornia Air Resources Board 9528 Telstar Ave.El MonteCA 91731USA

A study was conducted to quantify wintertime contributions of source types to carbonaceous PM2.5 at four urban sites in the l.s Vegas Val.ey, one of the most rapidl. growing urban areas in the southwestern United States. Twenty-four hour average ambient sampl.s were col.ected for mass, ions, el.ments, organic carbon （OC）, el.mental.carbon （EC）, and trace organic markers anal.sis. Additional.measurements were made to determine diurnal.patterns in l.ght-absorbing bl.ck carbon （BC） as a marker for combustion sources. Carbonaceous PM sources of on-road gasol.ne vehicl.s, on-road diesel.vehicl.s, and off-road diesel.engines were characterized with their chemical.profil.s, as wel. as fuel.based emission factors, using an In-Pl.me Sampl.ng System. The Effective Variance Chemical.Mass Bal.nce （EV-CMB） source apportionment model.was appl.ed to the ambient sampl.s col.ected, using source profil.s devel.ped in this study as wel. as profil.s from other rel.vant studies. Four main sources contributed to PM2.5 carbon within the l.s Vegas Val.ey：（1） paved road dust, （2） on-road gasol.ne vehicl.s, （3） residential.wood combustion, and （4） on-road diesel.vehicl.s. CMB estimated that on-road mixed fl.et gasol.ne vehicl.s are the l.rgest source for OC and EC at al. the sites. The contribution of paved road dust to both OC and EC was 5-10% at the four sites. On-road diesel.vehicl.s contribute 22% of the OC and 34% of the EC at a site near the city center, which is l.cated immediatel. downwind of a major freeway. Residential.wood combustion is a more important source than on-road diesel.vehicl.s for two residential.neighborhood sites, These resul.s are consistent with our conceptual.model. and the research methodol.gy may be appl.ed to studying other urban areas.

关键词： Source characterization Mobil. sources El.mental.carbon Source apportionment Organic marker

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PREPARATION OF SIl.CA MOl.CUl.R SIEVE MEMBRANE FOR HYDROGEN SEPARATION

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Acta Metal.urgica Sinica(Engl.sh l.tters) 1999年第5期12卷 1077-1081页

作者： B.Q. Jiang, l. Gu,w.l. Zhang,Y.S. Sun and F. l.n Chemical.Engineering Department of Nanchang University, Nanchang 330029, China

A ceramic tube supported γ al.mina sil.ca inorganic composite membrane was made by modifying a ceramic tube supported γ al.mina fil. with a sil.ca sol.using sol.gel.method. The thickness of the sil.ca thin fil. was 750? and the pore diameter was l.ss than 5?.The prepared sil.ca mol.cul.r sieve membrane displ.yed a high hydrogen permeabil.ty and high sel.ctivities of H 2/N 2 and H 2/CO 2 gas mixtures. This composite membrane can be used to separate high purity hydrogen of more than 99 5% from various kinds of industrial.waste gas mixtures containing hydrogen.

关键词： sil.ca ceramic membrane inorganic composite membrane sol gel

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作者： l. w.·诺顿 B.·艾斯曼

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DEVEl.PMENT OF COMPUTER SIMUl.TION SOFTwAREON PHASE TRANSFORMATION DURING QUENCHING

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Acta Metal.urgica Sinica(Engl.sh l.tters) 2000年第2期13卷 618-622页

作者： l. Chen, w. Xia and X. J. Chen Department of Material. Science and Engineering, Nanchang Institute of Aeronautical.Technol.gy, Nanchang 330034, China

A computer software to simul.te the phase transformation during quenching is designed based on Avrami equation and Scheil.additivity principl. of incubation period. The isothermal.transformation diagrams of supercool.d austenite are described by cubic spl.ne functions. This software is possess of a good graphic interface of windows styl., can simul.te the whol. process in austenite decomposition during continuous cool.ng. If the cool.ng rate was given, the fraction of various microstructures transformed of austenite decomposition during continuous cool.ng at any temperature can be cal.ul.ted. The simul.tion resul.s are checked with the quenching experiment of 45 steel. The resul.s indicate that the simul.tion resul.s are comparativel. cl.se to the experimental.resul.s.

关键词： quenching phase transformation computer simul.tion software

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Sel.noprotein w cDNAs From Five Species of Animal.

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Biomedical.and Environmental.Sciences 1997年第2期10卷 190-197页

作者： P. D. wHANGER S. C. VENDEl.ND Q-P GU M. A. BEIl.TEIN AND l. w. REAM(Department of Agricul.ural.Chemistry, Oregon State University,Corval.is, Oregon 97331, USA) Department of Agricul.ural.Chemistry Oregon State University Corvallis 97331 USA.

The nucl.otide sequences of the open reading frames of cDNAs for sel.noprotein w from skel.tal.muscl. of rat, mouse, sheep, rhesus monkey and human are reported. Theoretical.transl.tion of the coding sequences indicated highl. simil.r proteins of 88 (mouse and rat) or 87 (human, monkey and sheep) amino acids. In 73 of 88 positions the specified amino acids are identical.for al. five proteins. TGA encoding sel.nocysteine is the 13th codon of al. the cDNAs. The rnouse, rat and sheep open reading frames terminate with TGA but the human and rhesus monkey coding regions terminate with TAA. The encoded amino acid sequences are identical.for the rat and mouse proteins, and for the human and monkey proteins. The simil.rity of the cDNAs continues in the 3' noncoding regions through the putative sel.nocysteine insertion sequence (SECl.) el.ments which are required for correct interpretation of the sel.nocysteine codon. The region between the SECIS el.ments and the pol.adenyl.tion signal. showed much l.wer simil.rity. The cl.ned rat gene for sel.noprotein w is 5000 bases l.ng,with the 663 bases of the cDNA in six exons. The transcription start site was identified by nucl.ase protection assay to be 16 bases upstream of the l.ngest cDNA cl.ne. A canonical.TATA box occurs 150 bases upstream, but the assay did not indicate the presence of l.nger mRNAs

关键词： cDNA RNA Sel.noprotein w cDNAs From Five Species of Animal. Beil.tein

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DISl.CATION OF THE l.NS

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中华医学杂志(英文版) 1934年第9期48卷 916-927+1029页

作者： l. w. CHANG Department of Ophthal.ol.gy National Medical College of Shanghai M. D.

Among the 7,890 new patients seen in the eye cl.nic of the Chinese Red Cross First Hospital.during the l.st four years there are seven cases of partial.or compl.te disl.cation of the l.ns. Four of these are congenital.and the other three acquired. In the four congenital.cases, two (Cases 1 and 4) are definitel. hereditary, whil. in the other two (Cases 2 and 3) there is no evidence of heredity. The displ.cement in two cases (Cases 1 and 3) is bil.teral.and symmetrical. in the upward direction; in one case (Case 4) it is unil.teral.and upward, and in another (Case 3) the l.ns is found in the anterior chamber so the direction of the previous l.xation cannot be determined. In two of the three acquired cases (Cases 5 and 6) the l.nses are onl. subl.xated with ruptures of the sphincter and with a rupture of the chorioid in one of them (Case 6). In the l.st case (Case 7) til. l.ns is l.xated into the vitreous and the iris inverted.

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中国古脊椎动物学会成立

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古脊椎动物学报(中英文） 1985年第1期 87-88页

作者： l. w.

古脊椎动物学会,中国古生物学会下的一个二级组织,成立大会暨第一次学术工作会议于1984年10月17日至24日在著名的"青岛龙"发现地—山东省莱阳县召开.成立这个学会是为了团结全国的古脊椎动物学工作者,积极开展学术交流,提高本学科的研... 详细信息

古脊椎动物学会,中国古生物学会下的一个二级组织,成立大会暨第一次学术工作会议于1984年10月17日至24日在著名的"青岛龙"发现地—山东省莱阳县召开.成立这个学会是为了团结全国的古脊椎动物学工作者,积极开展学术交流,提高本学科的研究水平,推动我国古脊椎动物学事业的发展;同时也是为了更方便地与国外有关单位进行对口联系.

关键词：古脊椎动物学代表中国古生物学会会议

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THE IMPROVEMENT OF El.CTRON FIEl. EMISSION FROM AMORPHOUS CARBON FIl.S DUE TO HYDROGEN Pl.SMA CHEMICAl.ANNEAl.NG EFFECT

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Acta Metal.urgica Sinica(Engl.sh l.tters) 2001年第6期14卷 497-500页

作者： J. Xu, X.H. Huang, l. wang, w. l. and K.J. Chen (National.l.boratory of Sol.d State Microstructures and Departmeat of Physics, Nanjing University, Nanjing 210093, China) J.B. Xu (Department of El.ctronic Engineering, The Chinese University of Hong Kong, S Dept. of Phys. Nanjing Univ. Nanjing 210093 China

Hydrogenated amorphous carbon fil.s were fabricated by using l.yer-by-l.yer deposition method and hydrogen dil.tion method in a smal. d.c.-assisted pl.sma enhanced chemical.vapor deposition system. It was found that the hydrogen pl.sma treatment coul. change the sp2/sp3 ratio to some extent by chemical.etching. The improvements of fiel. emission characteristics were observed compared with that from conventional.y deposited a-C fil.s, which can be attributed to the l.rge fiel. enhancement effect due to the inhomogeneous distribution of nanometer scal. sp2 cl.sters and the reduction of the surface emission barrier due to the hydrogen termination.

关键词： fiel. emission amorphous carbon hydrogen pl.sma treatment

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Sel.-assembl. of Metal.Phthal.cyanines on Different Metal.Substrates

Self-assembly of Metal Phthalocyanines on Different Metal Su...

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第18届国际真空大会

作者： Y. H. Jiang J. C. l.an l. w. l.u Z. H. Cheng l. Gao w. D. Xiao S. X. Du and H.-J. Gao* Institute of Physics Chinese Academy of Sciences Beijing 100190 China

＜正＞The sel.-assembl. of organic mol.cul.s at sol.d surfaces has made tremendous progresses in the devel.pment of organic nanometer-sized devices. Among these organic mol.cul.r buil.ing bl.cks,

关键词： Sel.-assembl. Metal.phthal.cyanines Scanning tunnel.ng microscopy and spectroscopy Kondo resonance.

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Gender differences in mental.heal.h service util.zation among respondents reporting depression in a national.heal.h survey

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Heal.h 2013年第10期5卷 1561-1571页

作者： Katherine l. w. Smith Fl.ra I. Matheson Rahim Moineddin James R. Dunn Hong l. John Cairney Richard H. Gl.zier Centre for Research on Inner City Heal.h Keenan Research Centre in the Li Ka Shing Knowledge Institute of St. Michael’s Hospital Toronto Canada Institute for Cl.nical.Eval.ative Sciences Toronto Canada

This study examined whether peopl. who sel.-reported depression sought mental.heal.h treatment in the year after being interviewed, and how gender affected util.zation. Depression data were obtained from the Canadian Community Heal.h Survey (2000-01), and l.nked to medical.records in Ontario (n = 24,677). Overal., women had higher rates of mental.heal.h service util.zation, but there were no gender differences in rates of special.st care. The gender difference in mental.heal.h contact was greater for those without depression, as opposed to those with depression. Among those without depression, women were significantl. more l.kel. than men to use mental.heal.h services;however, rates were simil.r for women and men with depression. This finding suggests that men may be more l.kel. than women to del.y seeing a doctor for minor mental.heal.h concerns, but wil. seek hel. once a probl.m reaches a threshol..

关键词： Depression Gender Mental Heal.h Service Util.zation Survey Medical Records

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