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6篇 您的检索式:作者名="Changlin Zhan"
    题名 作者 年代 出处 被引量
1Synthesis of NiO nanowires by an oxidation route显示文摘Yongjie Zhan Changlin Zheng Yingkai Liu 2003Mater Lett2003,57,:1
2Spatial distributions and sequestrations of organic carbon and black carbon in soils from the Chinese loess plateau显示文摘ZHAN Changlin CAO Junji HAN Yongming 2013Science of the Total Environment2013,,465:1
3LuxS-dependent AI-2 regulates versatile functions in Enterococcus faecalis V583 显示文摘SHAO Changlin SHANG Wei YANG Zhan 2012Journal of Proteome Research2012,11,9:1
4Synthesis of NiO nanowires by an oxidation route 显示文摘ZHAN Yongjie ZHENG Changlin LIU Yingkai 2003Materials Letters2003,57,:1
5Light attenuation cross-section of black carbon in an urban atmosphere in northern China显示文摘Fine particulate matter(PM_(2.5)) samples were collected over two years in Xi'an,China to investigate the relationships between the aerosol composition and the light absorption efficiency of black carbon(BC).Real-time light attenuation of BC at 880 nm was measured with an aethalometer.The mass concentrations and elemental carbon(EC) contents of PM_(2.5) were obtained,and light attenuation cross-sections(σ_(ATN))of PM_(2.5) BC were derived.The mass of EC contributed ~5% to PM2.5 on average.BC σ_(ATN) exhibited pronounced seasonal variability with values averaging 18.6,24.2,16.4,and 26.0 m^2/g for the spring,summer,autumn,and winter,respectively,while averaging 23.0 m^2/g overall.σ_(ATN) varied inversely with the ratios of EC/PM_(2.5),EC/[SC_4^(2-)],and EC/[NO_3^-].This study of the variability in σ_(ATN) illustrates the complexity of the interactions among the aerosol constituents in northern China and documents certain effects of the high EC,dust,sulfate and nitrate loadings on light attenuation.Junji Cao Chongshu Zhu Kinfai Ho Yongming Han Zhenxing Shen Changlin Zhan Jiaquan Zhang 2015Particuology2015,13,1:0
6Identification of coexistence of biological and non-biological aerosol particles with DAPI (4′,6-diamidino-2-phenylindole) stain显示文摘The fluorescent dye 4′,6-diamidino-2-phenylindole (DAPI) has been widely used to stain microorganisms in various environment media. We applied DAPI fluorescence enumeration to airborne microorganisms and found that non-biological particles, including organic compounds, minerals, and soot, were also visible upon exposure to UV excitation under fluorescence microscope. Using laboratory-prepared biological particles as the control, we investigated the feasibility of identifying both biological and non-biological particles in the same sample with DAPI staining. We prepared biological (bacterial, fungi, and plant detritus) and non-biological (biochar, soot, mineral, metal, fly ash, salt) particles in the laboratory and enumerated the particles and their mixture with DAPI. We found that mineral particles were transparent, and biochar, soot, metals and fly ash particles were black under a filter set at excitation 350/50 nm and emission 460/50 nm bandpass (DAPI-BP), while biological particles were blue, as expected. Particles of the water-soluble salts NaCl and (NH_(4))_(2)SO_(4) were yellow under a filter set at excitation 340–380 nm and emission 425 nm long pass (DAPI-LP). Case studies with samples of dustfall, atmospheric aerosols and surface soils could allow for the quantification of the relative number of different types of particles and particles with organic matter or salt coating as well. Fluorescence enumeration with DAPI stain is thus able to identify the co-existence of biological and non-biological particles in the air, at least to the extent of those examined in this study.Ting Liu Jiaquan Zhang Junji Cao Han Zheng Changlin Zhan Hongxia Liu Lili Zhang Kai Xiao Shan Liu Dong Xiang Daizhou Zhang 2023Particuology2023,,1:0
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