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| 1 | Ozone source attribution during a severe photochemical smog episode in Beijing,China显示文摘Beijing,the capital of China,frequently suffers from the high levels of ozone in summer.A 3-D regional chemical transport model,the Comprehensive Air Quality Model with extensions(CAMx),has been used to simulate a heavy O3 pollution episode in Beijing during June 26―July 2,2000.Ozone Source Apportionment Technology(OSAT) and Geographic Ozone Assessment Technology(GOAT) were applied to quantify the contributions of the precursor emissions from different regions to O3 concentrations in Beijing,to identify the relative importance of different ways by which regional sources affected the O3 levels in Beijing urban areas,and to investigate the sensitivity of O3 formation to the precursors during the episode.The O3 pollution in Beijing showed a significant spatial distribution with strong regional contribution.The results suggested that the plume originating from Beijing urban areas greatly affected the O3 concentrations at the Dingling site,accounting for 55% of elevated O3 there,while O3 pollution in the Beijing urban areas resulted from both local emissions and those from Tianjin and the south of Hebei Province.Transport of O3 was responsible for about 70% of the regional O3 contribution to Beijing urban areas,while transport of O3 precursors accounted for the remainder.The formation of O3 was limited by volatile organic compounds(VOCs) in the urban areas of Beijing,while being more sensitive to NOx levels in the suburban and more remote areas.Therefore,it is necessary to consider a large number of factors,including impacts of emissions from different regions,the two modes of regional contribution as well as the sensitivity of O3 formation to precursors,in the design of emissions control strategies for O3 reduction in Beijing. | WANG XueSong LI JinLong ZHANG YuanHang XIE ShaoDong TANG XiaoYan | 2009 | Science China Chemistry2009，52，8： | 32 |
| 2 | Effect of composite supports on the methanation activity of Co-Mo-based sulphur-resistant catalysts显示文摘The effects of composite supports of CeO2-Al2O3,MgO-Al2O3,TiO2-Al2O3 or ZrO2-Al2O3 on the methanation activity of supported Co-Mo-based sulphur-resistant catalysts were investigated.The catalysts were further characterized by nitrogen adsorption measurement,X-ray diffraction and X-ray photoelectron spectroscopy.The catalyst of 5%CoO-15%MoO3 supported on CeO2-Al2O3,MgO-Al2O3,TiO2-Al2O3 or ZrO2-Al2O3 composite oxides,respectively,showed different catalytic performances of syngas methanation in the presence of hydrogen sulphide as compared with that of the 5%CoO-15%MoO3/Al2O3 catalyst.The Co-Mo/CeO2-Al2O3 catalyst shows the highest methanation activity among the tested catalysts.The enhanced methanation activity may be attributed to the improvement of the dispersion of active metal species and the inhibition of the formation of S6+. | Haiyang Wang Zhenhua Li Erdong Wang Can Lin Yuguang Shang Guozhong Ding Xinbin Ma Shaodong Qin Qi Sun | 2012 | Journal of Natural Gas Chemistry2012，21，6： | 15 |
| 3 | Effect of a promoter on the methanation activity of a Mo-based sulfur-resistant catalyst显示文摘 | Can LIN Haiyang WANG Zhenhua LI Baowei WANG Xinbin MA Shaodong QIN Qi SUN | 2013 | Frontiers of Chemical Science and Engineering2013，7，1： | 8 |
| 4 | Effects of uranium on hydrocarbon generation of hydrocarbon source rocks with type-Ⅲ kerogen显示文摘Organic-inorganic interaction exists universally and is important in the process of mineral resources formation.It is the essential reason why organic oil,gas,coal and inorganic uranium coexist,accumulate,and mineralize in the same sedimentary basins.Hydrocarbon-generating simulation experiment was conducted using low-mature hydrocarbon source rock containing kerogen type III with uranium(UO2CO3 solution)added to study the effects of uranium on the hydrocarbon generation of hydrocarbon source rocks.Experiment results show that uranium can enhance the yield of gas hydrocarbon,promote the total gas output,and increase the total hydrocarbon production(mass or volume).Uranium may lower the hydrocarbon generation threshold temperature and lead to the generation of liquid hydrocarbon in the relative low temperature of hydrocarbon source rock.Uranium can enhance the yield of saturated hydrocarbon,promote the low molecular weight hydrocarbons generating,and in turn increase the content of CH4 and the content of dry gas of the generated hydrocarbons.Uranium is one of the potential inorganic accelerating factors of the immature hydrocarbons. | MAO GuangZhou LIU ChiYang ZHANG DongDong QIU XinWei WANG JianQiang LIU BaoQuan LIU JingJiang QU ShaoDong DENG Yu WANG FeiFei ZHANG Can | 2014 | Science China Earth Sciences2014，57，6： | 5 |
| 5 | Effect of cobalt and its adding sequence on the catalytic performance of MoO_3/Al_2O_3 toward sulfur-resistant methanation显示文摘The effect of promoter cobalt and the sequences of adding cobalt and molybdenum precursors on the performance of sulfur-resistant methanation were investigated. All these samples were prepared by impregnation method and characterized by N2-adsorption, X-ray diffraction(XRD), temperature-programmed reduction(TPR) and laser Raman spectroscopy(LRS). The conversions of CO for Mo-Co/Al, Co-Mo/Al and CoMo/Al catalysts were 59.7%, 54.3% and 53.9%, respectively. Among these catalysts, the Mo-Co/Al catalyst prepared stepwisely by impregnating Mo precursor firstly showed the best catalytic performance. Meanwhile, the conversions of CO were 48.9% for Mo/Al catalyst and 10.5% for Co/Al catalyst. The addition of cobalt species could improve the catalytic activity of Mo/Al catalyst. The N2-adsorption results showed that Co-Mo/Al catalyst had the smallest specific surface area among these catalysts. CoMoO4species in CoMo/Al catalyst were detected with XRD, TPR and LRS. Moreover, crystal MoS2which was reported to be less active than amorphous MoS2was found in both Co-Mo/Al and CoMo/Al catalysts. Mo-Co/Al catalyst showed the best catalytic performance as it had an appropriate surface structure, i.e., no crystal MoS2and very little CoMoO4species. | Baowei Wang Yuqin Yao Minhong Jiang Zhenhua Li Xinbin Ma Shaodong Qin Qi Sun | 2014 | Journal of Energy Chemistry2014，23，1： | 5 |
| 6 | Effect of transverse static magnetic field on radial microstructure of hypereutectic aluminum alloy during directional solidification显示文摘The effect of different scales thermoelectric magnetic convection(TEMC)on the radial solidification microstructure of hypereutectic Al alloy has been investigated under transverse static magnetic field during directional solidification,focusing on the formation of freckle.Our experimental and numerical simulation results indicate that the TEMC circulation at sample scale under transverse static magnetic field leads to the enrichment of solute Al on one side of the sample.The TEMC and the solute enrichment degree increase with the increase of magnetic field when the magnetic field increases to 0.5 T.The enrichment degree of solute elements under magnetic field is affected by temperature gradient and growth rate.The non-uniform distribution of solute Al in the radial direction of the sample results in the non-uniform distribution of primary dendrite arm spacing(PDAS).Moreover,the applied magnetic field can lead to freckle formation and its number increases with the increase of magnetic field.The change of freckle is consistent with the anisotropy TEMC caused by the anisotropy of primary dendrite or primary dendrite network under magnetic field.Finally,the mechanism of synergism effect of the anisotropy TEMC,the distribution of solute Al and the PDAS on freckle formation and evolution is studied during directional solidification under magnetic field. | Shaodong Hu Long Hou Kang Wang Zhongmiao Liao Wen Zhu Aihua Yi Wenfang Li Yves Fautrelle Xi Li | 2021 | Journal of Materials Science & Technology2021，，17： | 4 |
| 7 | Short Cavity DFB Fiber Laser Based Vector Hydrophone for Low Frequency Signal Detection显示文摘一个短洞分布式的反馈(DFB ) 纤维激光被用于低频率声学的信号察觉。有不同中央波长的三 DFB 纤维激光一起被锁住与合适的敏感改进设计做三元素的向量水中听音器,它有广泛、重要的应用到为国家防卫的在水下的声学的监视,油,煤气的探索等等。由波长阶段解调,在不同频率信号下面的放射激光的波长变化能被解释,并且敏感被测试大约 33 dB re pm/g。频率反应范围从 5 Hz 是相当扁平的到 300 Hz。 | Xiaolei ZHANG Faxiang ZHANG Shaodong JIANG Li MIN Ming LI Gangding PENG Jiasheng NI Chang WANG | 2017 | Photonic Sensors2017，7，4： | 3 |
| 8 | Measurement of Attenuation of Ultrasonic Propagating through the Thin Layer Media with Time Delay Spectrum显示文摘The ultrasonic attenuation coefficient is one of the most important acoustic parameters to character the performance of a thin layer media, but it can not be measured due to mutual superposition of multiple reflected waves at the same interface in ultrasonic testing. Ultrasonic pulse echo and lamb wave to evaluate the thin layer media can not obtain attenuation coefficient at present. In this paper, analytical method was used to study the acoustics characteristic of thin layer media with the ultrasonic echo testing. Meanwhile, the process of ultrasonic attenuation measurement was presented. Simulation and experimental investigation is focused on a thin layer of rubber. Attenuation coefficient was introduced and evaluation mathematics model was established by the two echoes cross-correlation with and without the thin layer media based on the time delay spectrum. It involved the parameters related to the acoustic properties of the thin layer media. Through calculating the sound velocity and acoustic impedance with the evaluation model, it can deduce the relation between the attenuation coefficient and the frequency. Through analyzing the simulation results, it indicated that the attenuation coefficients were invariable with the varying of the frequency. However, the attenuation coefficients increased with the frequency increasing by ultrasonic testing the thin layer of rubber. The reason was that the attenuation factor was not taken into account during the simulation. This method overcomes shortcomings that the traditional ultrasonic testing can not evaluate the thin layer media whose thickness is less than motivation wavelength. It is a new solution to study the attenuation characteristic and on-line nondestructive evaluation in the thin layer media. | WANG Xingguo CHANG Junjie SHAN Yingchun TIE Shaodong YAO Man XU Jiujun | 2010 | Chinese Journal of Mechanical Engineering2010，23，1： | 3 |
| 9 | Specific photoacoustic cavitation through nucleus targeted nanoparticles for high-efficiency tumor therapy显示文摘As a new type of cancer treatment,photoacoustic(PA)therapy is based on PA shockwave for rapid,selective and effective killing of cancer cells.The nucleus has been widely used as a target for tumor therapy,which has obtained a very considerable therapeutic effect.In situ destruction of tumor cell nucleus by photoacoustic therapy has not been studied.In this paper,a highly efficient nucleus-targeted photoacoustic theranostic polymer was developed for fluorescence and photoacoustic dual-mode imaging-guided PA therapy.The prepared polymer consists of nucleus targeting TAT peptide(TAT:YGRKKRRQRRR),hydrophilic chain poly(N,N-dimethylacrylamide)(PDMA),and near-infrared(NIR)light absorbing agent(hCyR),which can self-assemble to form nanoparticles of approximately 28 nm(denoted as TAT-PDMA-hCyR NPs).The designed nanoparticles show excellent nucleus targeting and tumor cell death(up to 80%)caused by DNA damage under pulsed laser irradiation compared to non-nucleus target counterpart PDMA-hCyR NPs without TAT peptide in vitro.As expected,the fluorescence and PA dual-mode imaging observed that TAT-PDMA-hCyR NPs were able to passively target and enrich in tumors,providing an experimental basis for in vivo treatment and thus ensuring a significant tumor inhibition rate(about 92%).In conclusion,this study provides a new and practicable method for the development of nucleus-targeting nanoparticles as potential theranostic agent for in vivo cancer imaging and therapy. | Yuan Wang Guangle Niu Shaodong Zhai Wenjia Zhang Da Xing | 2020 | Nano Research2020，13，3： | 3 |
| 10 | Effects of trace ytterbium addition on microstructure,mechanical and thermal properties of hypoeutectic Al-5Ni alloy显示文摘Over the past decade,the cast aluminum alloys with excellent mechanical and conductivity properties have emerged as potential materials for thermal management.However,the traditional Al-Si based alloys are difficult to make significant breakthrough in conductivity performance.The hypoeutectic Al-5Ni alloy also possesses sound castability and is expected to be applied in thermal management applications.In this study,the effects of ytterbium(Yb element) at 0-0.5 wt% on the microstructures as well as the electrical/thermal conductivity and mechanical properties of the Al-5Ni alloy were systematically investigated.The experimental results indicate that the addition of Yb at a relatively low amount not only reduces the secondary dendrite arm spacing of the α-Al grains,but also modifies the morphology and distribution of eutectic boundary phase.Moreover,it is found that the dosage of Yb at 0.3 wt% in the Al-5Ni alloy can simultaneously improve the yield strength,ultimate tensile strength and electrical/thermal conductivity.The strengthening and toughening of the Al-5Ni alloy are mainly attributed to the decrease of secondary dendrite arm spacing and the improvement of eutectic phases.The transmission electron microscopy/selected area electron diffraction(TEM/SAED) analysis indicates that the ytterbium in Al-5Ni alloy will form Al_(3)Yb phase,which mainly agglomerates in the Al_(3)Ni phase region.This phase is helpful to decrease the solubility of impurity elements(e.g.,Fe and Si) in the α-Al matrix,which is beneficial to electrical/thermal conductivity.The value of this study lays foundation for manufacturing Al-Ni alloys with high thermal conductivity and acceptable mechanical properties. | Kang Wang Shaodong Hu Yanglin Zhong Shuoxun Jin Zirong Zhou Zhiyu Wang Jiongcai Chen Bingbing Wan Wenfang Li | 2022 | Journal of Rare Earths2022，40，8： | 2 |
| 11 | The role of the distribution of Ce species on MoO 3 /CeO 2 –Al 2 O 3 catalysts in sulfur-resistant methanation显示文摘 | Minhong Jiang Baowei Wang Yuqin Yao Haiyang Wang Zhenhua Li Xinbin Ma Shaodong Qin Qi Sun | 2013 | Catalysis Communications2013，，： | 1 |
| 12 | Effect of sulfidation temperature on the catalytic behavior of unsupported MoS 2 catalysts for synthetic natural gas production from syngas显示文摘 | Zhenhua Li Jia Liu Haiyang Wang Erdong Wang Baowei Wang Xinbin Ma Shaodong Qin Qi Sun | 2013 | Journal of Molecular Catalysis A Chemical2013，，： | 1 |
| 13 | ^29Si and ^27Al NMR study of alkali-activated slag显示文摘 | Wang Shaodong Scrivener K L | 2003 | Cem Concr Res2003，33，5： | 1 |
| 14 | 29Si and 27Al NMR study of alkali-activated slag显示文摘 | WANG Shaodong SCRIBENER K L | 2003 | Cem Concr Res2003，33，5： | 1 |
| 15 | Assessment of traffic-related air pollution in the urban streets before and during the 2008 Beijing Olympic Games traffic control period显示文摘 | Ting Wang Shaodong Xie | 2009 | Atmospheric Environment2009，，35： | 1 |
| 16 | 29Si and 27Al NMR study of alkali-activated slag cement 显示文摘 | Wang Shaodong Scrivener K L | 2003 | Cement and Concrete Research2003，33，5： | 1 |
| 17 | Factors af- fecting the strength of alkali-activated slag显示文摘 | Wang Shaodong Scrivener Karen L Pratt P L | 1994 | Cement and Concrete Research1994，24，6： | 1 |
| 18 | Factors affecting the strength of alkali-activated slag显示文摘 | Wang Shaodong Scrivener Karen L Pratt P L | 1994 | Cement and Concrete Research1994，24，6： | 1 |
| 19 | Recognition of self and altered self by T cells in autoimmunity and allergy显示文摘T cell recognition of foreign peptide antigen and toler-ance to self peptides is key to the proper function of the immune system.Usually,in the thymus T cells that rec-ognize self MHC+self peptides are deleted and those with the potential to recognize self MHC+foreign pep-tides are selected to mature.However there are excep-tions to these rules.Autoimmunity and allergy are two of the most common immune diseases that can be related to recognition of self.Many genes work together to lead to autoimmunity.Of those,particular MHC alleles are the most strongly associated,reflecting the key importance of MHC presentation of self peptides in autoimmunity.T cells specific for combinations of self MHC and self pep-tides may escape thymus deletion,and thus be able to drive autoimmunity,for several reasons:the relevant self peptide may be presented at low abundance in the thy-mus but at high level in particular peripheral tissues;the relevant self peptide may bind to MHC in an unusual register,not present in the thymus but apparent else-where;finally the relevant self peptide may be post translationally modified in a tissue specific fashion.In some types of allergy,the peptide+MHC combination may also be fully derived from self.However the combi-nation in question may be modified by the presence of other ligands,such as small drug molecules or metal ions.Thus these types of allergies may act like the post translationally modified peptides involved some types of autoimmunity. | Lei Yin Shaodong Dai Gina Clayton Wei Gao Yang Wang John Kappler Philippa Marrack | 2013 | Protein & Cell2013，4，1： | 1 |
| 20 | Hydration products of alkali activated slag cement显示文摘 | Wang Shaodong Scrivener K L | 1995 | Cement and Con- crete Research1995，25，3： | 1 |
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