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| 1 | Trace metals in atmospheric fine particles in one industrial urban city: Spatial variations, sources, and health implications显示文摘Trace metals in PM2.5were measured at one industrial site and one urban site during September, 2010 in Ji'nan, eastern China. Individual aerosol particles and PM2.5samples were collected concurrently at both sites. Mass concentrations of eleven trace metals(i.e., Al, Ti, Cr, Mn, Fe, Ni, Cu, Zn, Sr, Ba, and Pb) and one metalloid(i.e., As) were measured by inductively coupled plasma atomic emission spectroscopy(ICP-AES). The result shows that mass concentrations of PM2.5(130 μg/m3) and trace metals(4.03 μg/m3) at the industrial site were 1.3 times and 1.7 times higher than those at the urban site, respectively, indicating that industrial activities nearby the city can emit trace metals into the surrounding atmosphere. Fe concentrations were the highest among all the measured trace metals at both sites, with concentrations of 1.04 μg/m3at the urban site and 2.41 μg/m3at the industrial site, respectively. In addition, Pb showed the highest enrichment factors at both sites, suggesting the emissions from anthropogenic activities existed around the city. Correlation coefcient analysis and principal component analysis revealed that Cu, Fe, Mn, Pb, and Zn were originated from vehicular trafc and industrial emissions at both sites; As, Cr, and part of Pb from coal-fired power plant; Ba and Ti from natural soil. Based on the transmission electron microscopy analysis, we found that most of the trace metals were internally mixed with secondary sulfate/organic particles. These internally mixed trace metals in the urban air may have diferent toxic abilities compared with externally mixed trace metals. | Shengzhen Zhou Qi Yuan Weijun Li Yaling Lu Yangmei Zhang Wenxing Wang | 2014 | Journal of Environmental Sciences2014,26,1: | 23 |
| 2 | Indian hedgehog mutations causing brachydactyly type A1 impair Hedgehog signal transduction at multiple levels显示文摘Brachydactyly 打 A1 (BDA1 ) ,第一在人记录了孟德尔的正染色体的主导的混乱,被弄短或中间的指骨的缺席描绘。在印度刺猬(IHH ) 基因的异质接合的错误感觉变化作为 BDA1 的一个原因被识别了;然而,这些变化的生物化学的后果是不清楚的。在这份报纸,我们在印度刺猬(IhhN ) 的 N 终端碎片分析了三个 BDA1 变化(E95K, D100E,和 E131K ) 。结构的分析证明 E95K 变化在一条钙绑定沟把一个否定地控告的区域改变到一个断然控告的区域,并且 D100E 变化改变本地第三级的结构。而且,我们证明 E95K 和 D100E 变化导致了一温度敏感并且 IhhN 的钙依赖者不稳定性,它可能经由 lysosome 贡献变异的蛋白质的提高的细胞内部的降级。尤其是,所有三个变化影响了对受体 Patched1 (PTC1 ) 有约束力的 Hh,减少它的能力导致细胞的区别。我们建议这些是引起 BDA1 的变化的普通特征,影响 Hh 第三级的结构,细胞内部的命运,到受体 / 搭挡的绑定,和到细胞外的部件的绑定。这些特征的联合改变发信号的能力和范围,但是影响是可能的是变量和变化依赖者。在发信号的范围的潜在的变化被和 heparan 硫酸盐的一个提高的相互作用与 E95K 变化,然而并非 E131K 变化为 IHH 描绘。一起拿,我们的结果建议这些 IHH 变化影响在多重层次,引起的反常骨头发展和反常的位形成发信号的 Hh。 | Gang Ma Jiang Yu Yue Xiao Danny Chan Bo Gao Jianxin Hu Yongxing He Shengzhen Guo Jian Zhou Lingling Zhang Linghan Gao Wenjuan Zhang Yan Kang Kathryn SE Cheah Guoyin Feng Xizhi Guo Yujiong Wang Cong-zhao Zhou Lin He | 2011 | Cell Research2011,21,9: | 6 |
| 3 | Photochemical indicators of ozone sensitivity: application in the Pearl River Delta, China显示文摘 | Lyumeng Ye Xuemei Wang Shaofeng Fan Weihua Chen Ming Chang Shengzhen Zhou Zhiyong Wu Qi Fan | 2016 | Frontiers of Environmental Science & Engineering2016,10,6: | 5 |
| 4 | RECENT PROGRESS IN THE PROJECT OF SPACE SOLAR TELESCOPE显示文摘In this paper, we introduce some process of the project of Space Solar Telescope in recent two years. The astronomic requirements have been further identified,the mission and operation requirements have been assessed, and some critical technologies have been performed. According to the time schedule, it is esti mated that the engineering model of the spacecraft would be completed and put into test operation in the end of 2004 and the spacecraft would be launched in about 2007. | JIN Shengzhen WANG Sen YANG Shimo JIANG Aimin SUN Caihong | 2002 | 空间科学学报2002,22,z1: | 4 |
| 5 | High-resolution X-ray flash radiography of Ti characteristic lines with multilayer Kirkpatrick–Baez microscope at the Shenguang-ⅡUpdate laser facility显示文摘High-resolution X-ray flash radiography of Ti characteristic lines with a multilayer Kirkpatrick-Baez microscope was developed on the Shenguang-Ⅱ(SG-Ⅱ)Update laser facility.The microscope uses an optimized multilayer design of Co/C and W/C stacks to obtain a high reflection efficiency of the Ti characteristic lines while meeting the precise alignment requirement at the Cu Kα line.The alignment method based on dual simulated balls was proposed herein,which simultaneously realizes an accurate indication of the center field of view and the backlighter position.The optical design,multilayer coatings,and alignment method of the microscope and the experimental result of Ti flash radiography of the Au-coned CH shell target on the SG-Ⅱ Update are described. | Shengzhen Yi Feng Zhang Qiushi Huang Lai Wei Yuqiu Gu Zhanshan Wang | 2021 | High Power Laser Science and Engineering2021,9,3: | 3 |
| 6 | Progress on Space Solar Telescope in 2004 - 2006显示文摘The progress on Chinese Space Solar Telescope (SST) in 2004-2006 is introduced. The scientific objectives are further clarified and the ground operation system has been planned. The 7 key technical problems of SST satellite platform and payloads have been tackled, which lay solid scientific and technological foundations for engineering prototype phase of the SST project. At present the SST project undergoes evaluation by CNSA and CAS so as to enter the engineering prototype phase of the SST project if it is finally approved. | AI Guoxiang YAN Yihua YANG Shimo JIN Shengzhen | 2006 | 空间科学学报2006,26,z1: | 3 |
| 7 | Optimum linear array of an optical aperture synthesis telescope显示文摘Measuring out successively the degree of coherence of the source produced by any couple of the small apertures via rotating an array composed of the small aperture telescopes, and synthesizing them into the (u, v) coverage of the source, the brightness distribution of the source can be obtained by the inverse Fourier transform of the degree of coherence with much higher resolution than from a single telescope. This article discusses the arrangements of the small apertures in the linear array, and found a method to decide the quality of the arrangements, the judgment factorε is introduced to calculate the arrangements in quantity. There are 1.5x1011 possibilities for 11 apertures. Therefore, the computer procedures are programmed to select the optimum arrangements. The effect of the simulation of the aperture synthesis is given for the linear array. The simulation method can also be used in the nonlinear arrays. | WEN Jianguo JIN Shengzhen NING Shunian | 2002 | Chinese Science Bulletin2002,47,23: | 2 |
| 8 | Character- ization and hydroisomerization performance of SAPO-11 mo- lecular sieves synthesized in different media显示文摘 | Zhang Shengzhen Chen Shengli Dung Peng | 2007 | Applied Ca- talysis A : General2007,332,1: | 1 |
| 9 | Synthesis and characterization of new vinyl acetate grafting onto epoxidized linseed oil in aqueous media显示文摘 | Mohamed J Shengzhen C Dmitri P | 2015 | Journal of Applied Polymer Science2015,132,42: | 1 |
| 10 | Characterization and hydroisomerization performance of SAPO-11 molecular sieves synthesized in different media显示文摘 | Zhang Shengzhen Chen Shengli Dong Peng | 2007 | Applied Catalysis A:General2007,332,1: | 1 |
| 11 | Characterization and hydroisomerization performance of SAPO-11 molecular sieves synthesized in different media显示文摘 | Shengzhen Zhang Sheng-Li Chen Peng Dong | 2007 | Applied Catalysis A:General2007,332,1: | 1 |
| 12 | Characterization and hydroisomerization performance ofSAPO-11 molecular sieves synthesized indifferent media 显示文摘 | Zhang Shengzhen Chen Shengli Dong Peng | 2007 | Applied Catalysis A: General2007,332,: | 1 |
| 13 | Integrated evaluation of aerosols from regional brown hazes over northern China in winter: Concentrations, sources, transformation, and mixing states显示文摘 | Li Weijun Zhou Shengzhen Wang Xinfeng Xu Zheng Yuan Chao Yu Yangchun Zhang Qingzhu Wang Wenxing | 2011 | Atmospheres2011,,9: | 1 |
| 14 | Characterization and hydroisomerization performance of SA- PO-11 molecular sieves synthesized in different media显示文摘 | ZHANG Shengzhen CHEN Shengli DONG Peng | 2007 | Appl Catal A2007,33,2: | 1 |
| 15 | Characterization and hydroisomerization performance of SAPO-11 molecular sieves synthesized in different media显示文摘 | Zhang Shengzhen Chen Shengli Dong Peng | 2007 | Appl Catal A2007,33,2: | 1 |
| 16 | Characterization and hydroisomerization performance of SAPO - 11 molecular sieves synthesized in different media 显示文摘 | Zhang Shengzhen Chen Shengli Dong Peng | 2007 | Appl Catal A : Gen2007,332,: | 1 |
| 17 | Formation of secondary organic carbon and long-range transport of carbonaceous aerosols at Mount Heng in South China显示文摘 | Shengzhen Zhou Zhe Wang Rui Gao Likun Xue Chao Yuan Tao Wang Xiaomei Gao Xinfeng Wang Wei Nie Zheng Xu Qingzhu Zhang Wenxing Wang | 2012 | Atmospheric Environment2012,,: | 1 |
| 18 | Fluorescence enhancement and cytotoxicity reduction of bis-viologen biphenyl by complexation of cucurbit[7]uril显示文摘The effect of cucurbit[7]uril(CB[7]) on fluorescence properties and biocompatibility of the bis-viologen biphenyl molecule(BPV22+) was investigated by using 1 H NMR spectroscopy,fluorescence emission titration,and in vitro cytotoxicity experiments.CB[7] can be combined with BPV22+ in a stoichiometric ratio of 1:1 and 2:1.After the formation of host-guest complex,the fluorescence emission intensity of BPV22+ increased significantly,and the emission spectrum blue shifted.Meanwhile,the host-guest complexes showed better biocompatibility than BPV22+ in cell cytotoxicity studies.Results of this paper lay a foundation for the development of host-guest type of fluo rescent probes,biological imaging and so forth. | Jing Zhou Shengzhen Hou Jin Zhang Yanru Chen Hao Chen Yebang Tan | 2021 | Chinese Chemical Letters2021,32,2: | 1 |
| 19 | Progress on Space Solar Telescope in 2002-2004显示文摘The progress on Chinese Space Solar Telescope (SST) in 2002-2004 is introduced. The documentations on plans and outlines based on the standards of Chinese aerospace industry for SST mission has been fulfilled. The key technical problems of SST satellite platform and payloads are tackled during pre-study stage of the mission. The laboratory assembly and calibration of the main optical telescope of 1.2 m spherical mirror and 1 m plain mirror have been carried out with the accuracy of λ/40 and λ/30, respectively. The prototype at 17.1 nm for extreme ultraviolet telescope is under development and manufacture with a diameter of 13 cm. Its primary and secondary mirrors have a manufacturing error of 5nm with a roughness degree of less than 0.5 nm and a multiplayer reflection factor of better than 20%. The on-board scientific data processing unit has been developed. Prototypes for other payloads such as H and white light telescope, wide band spectroscopy in high energy and solar and interplanetary radio spectrometer have been developed accordingly. | AI Guoxiang YAN Yihua JIN Shengzhen | 2004 | 空间科学学报2004,24,z1: | 0 |
| 20 | Atmospheric HONO formation during and after the Spring Festival holidays in a coastal city of China显示文摘Nitrous acid(HONO)is an important source of hydrogen oxides(HOx),which affects air quality,the atmospheric oxidation capacity,and human health.Here,we present ambient measurements of the HONO concentrations in Zhuhai,a coastal city in Southern China,from February 7 to March 15,2021.The campaign was classified into two periods during(P1)and after(P2)the Spring Festival holidays.The average HONO mixing ratio during P2(1.19±0.85 ppbv)was much higher than that during P1(0.24±0.18 ppbv),likely due to the contribution of homogeneous HONO formation.During nighttime,the heterogeneous conversion rate during P2(0.0089/hr)was considerably higher than that during P1(0.0057/hr),suggesting a higher heterogeneous NO_(2) conversion potential.However,the heterogeneous NO_(2) conversion was the dominant way during P1 with a high percentage of 88%,while comparable ratios of heterogeneous and homogeneous formation were found(54%vs.46%)during P2,indicating that the homogeneous formation was also important during P2.During daytime,homogeneous reaction was the major known pathway,with a contribution of 16%during P1 and 27%during P2,leaving large unknown HONO sources which reasonably correlated with the photo-enhanced NO_(2) conversion.Two case scenarios were additionally explored,showing that there might be a primary emission source during one scenario(February 17-18)and vehicle emissions might be the major unknown HONO source for another scenario(March 3–5).The results suggest that large unknown daytime sources still exist which need more future ambient and laboratory studies. | Xue Ni Cuizhi Sun Yongyun Zhang Baoling Liang Shengzhen Zhou Guangdong Lan Jun Zhao | 2023 | Journal of Environmental Sciences2023,,5: | 0 |