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| 1 | Carbonyl emissions from heavy-duty diesel vehicle exhaust in China and the contribution to ozone formation potential显示文摘Fifteen heavy-duty diesel vehicles were tested on chassis dynamometer by using typical heavy duty driving cycle and fuel economy cycle. The air from the exhaust was sampled by 2,4-dinitrophenyhydrazine cartridge and 23 carbonyl compounds were analyzed by high performance liquid chromatography. The average emission factor of carbonyls was 97.2 mg/km, higher than that of light-duty diesel vehicles and gasoline-powered vehicles. Formaldehyde, acetaldehyde, acetone and propionaldehyde were the species with the highest emission factors. Main influencing factors for carbonyl emissions were vehicle type, average speed and regulated emission standard, and the impact of vehicle loading was not evident in this study. National emission of carbonyls from diesel vehicles exhaust was calculated for China, 2011, based on both vehicle miles traveled and fuel consumption. Carbonyl emission of diesel vehicle was estimated to be 45.8 Gg, and was comparable to gasolinepowered vehicles(58.4 Gg). The emissions of formaldehyde, acetaldehyde and acetone were 12.6, 6.9, 3.8 Gg, respectively. The ozone formation potential of carbonyls from diesel vehicles exhaust was 537 mg O3 /km, higher than 497 mg O3 /km of none-methane hydrocarbons emitted from diesel vehicles. | Dong Dong Min Shao Yue Li Sihua Lu Yanjun Wang Zhe Ji Dagang Tang | 2014 | Journal of Environmental Sciences2014,26,1: | 20 |
| 2 | Single-Step Organization of Plasmonic Gold Metamaterials with Self-Assembled DNA Nanostructures显示文摘Self-assembled DNA nanostructures hold great promise as nanoscale templates for organizing nanoparticles(NPs)with nearatomistic resolution.However,large-scale organization of NPs with high yield is highly desirable for nanoelectronics and nanophotonic applications.Here,we design fve-strand DNA tiles that can readily self-assemble into well-organized micrometerscale DNA nanostructures.By organizing gold nanoparticles(AuNPs)on these self-assembled DNA nanostructures,we realize the fabrication of one-and two-dimensional Au nanostructures in single steps.We further demonstrate the one-pot synthesis of Au metamaterials for highly amplifed surface-enhanced Raman Scattering(SERS).Tis single-step and high-yield strategy thus holds great potential for fabricating plasmonic metamaterials. | Shaokang Ren Jun Wang Chunyuan Song Qian Li Yanjun Yang Nan Teng Shao Su Dan Zhu Wei Huang Jie Chao Lianhui Wang Chunhai Fan | 2019 | Research2019,,1: | 4 |
| 3 | Determination of rock mass integrity coefficient using a non-invasive geophysical approach显示文摘Determination of rock mechanical parameters is the most important step in rock mass quality evaluation and has significant impacts on geotechnical engineering practice.Rock mass integrity coefficient(KV)is one of the most efficient parameters,which is conventionally determined from boreholes.Such approaches,however,are time-consuming and expensive,offer low data coverage of point measurements,require heavy equipment,and are hardly conducted in steep topographic sites.Hence,borehole approaches cannot assess the subsurface thoroughly for rock mass quality evaluation.Alternatively,use of geophysical methods is non-invasive,rapid and economical.The proposed geophysical approach makes useful empirical correlation between geophysical and geotechnical parameters.We evaluated the rock mass quality via integration between KV measured from the limited boreholes and inverted resistivity obtained from electrical resistivity tomography(ERT).The borehole-ERT correlation provided KV along various geophysical profiles for more detailed 2D/3D(two-/three-dimensional)mapping of rock mass quality.The subsurface was thoroughly evaluated for rock masses with different engineering qualities,including highly weathered rock,semi-weathered rock,and fresh rock.Furthermore,ERT was integrated with induced polarization(IP)to resolve the uncertainty caused by water/clay content.Our results show that the proposed method,compared with the conventional approaches,can reduce the ambiguities caused by inadequate data,and give more accurate insights into the subsurface for rock mass quality evaluation. | Muhammad Hasan Yanjun Shang Xuetao Yi Peng Shao Meng He | 2023 | Journal of Rock Mechanics and Geotechnical Engineering2023,15,6: | 1 |
| 4 | Nano-enabled solar driven-interfacial evaporation:Advanced design and opportunities显示文摘Solar-driven interfacial evaporation(SDIE)is emerging as a promising pathway to solving the worldwide water shortage and water pollution.Nanomaterials(e.g.,plasmonic metals,inorganic/organic semiconductors,and carbon nanomaterials)and related nanochemistry have attracted increasing attention for the solar-to-vapor process in terms of broadband absorption,electronic structure adjustment,and surface/interface chemistry manipulation.Furthermore,the assembly of nanomaterials can contribute to the mass transfer,heat management,and enthalpy regulation of water during solar evaporation.To date,numerous nano-enabled materials and structures have been developed to improve the solar absorption,heat management(i.e.,heat confinement and heat transfer),and water management(i.e.,activation,evaporation,and replenishment).In this review,we focus on a systematical summary about the composition and structure engineering of nanomaterials in SDIE,including size and morphology effects,nanostructure optimizations,and structure-property relationship decoupling.This review also surveys recent advances in nanochemistry(e.g.,preparation chemistry and structural chemistry)deployed to conceptual design of nanomaterials.Finally,the key challenges and future perspectives of nanomaterials for solar evaporation are overviewed.This review aims at providing guidance for the design and construction of nanomaterials for high-efficiency SDIE on the basis of the aspects of materials science and chemical engineering. | Xin Zhao Xiangtong Meng Hongqi Zou Yanjun Zhang Yangjun Ma Yadong Du Yuan Shao Jun Qi Jieshan Qiu | 2023 | Nano Research2023,16,5: | 1 |
| 5 | Research of Water Quality Analysis,Treatment and Reuse Technology for Rainwater on the North University Campus显示文摘The pollution situation of different underlying surface and the change rule of each water quality index were researched,on the basis of rainwater quality monitoring by different approaches in a university campus. The results showed that due to some factors,such as the underlying surface material pollution,road materials,road surface pollution condition and surrounding atmospheric environment quality,the pollution of different underlying surface rainwater would be different. Main pollutants of rainwater runoff in the city campus area were such as COD,SS,NH_3-N,TP,etc. Ultimately,along with the increase of accumulated rainfall,the pollutants tended to gradually decrease. The road rain pollution was more serious than roof runoff pollution and the early rain pollution was serious,but the late rain water quality was much better. According to the rainwater conditions,subsequent rainwater recycling technology and processing technology were determined as a way to alleviate the problem of water shortage and water pollution. | Chen Shufang Shi Jingwei Shao Yanjun Tu Chao | 2018 | Meteorological and Environmental Research2018,9,1: | 1 |
| 6 | Highly efficient genome editing using oocyte-specific zcas9 transgenic zebrafish显示文摘Since its first application to induce mutations in mammalian cells (Cong et al., 2013; Mali et al., 2013), CRISPR/Cas9 has rapidly become a routine technique to perform genome editing in a variety of biological systems due to its facile, robust, and multiplexable features (Hwang et al., 2013; Wang et al., 2013; Guo et al., 2014; Liu, | Yuanyuan Liu Chong Zhang Yanjun Zhang Siyao Lin De-Li Shi Ming Shao | 2018 | Journal of Genetics and Genomics2018,45,9: | 1 |
| 7 | Online Chinese Literature Nourishing World Readers显示文摘Since its emergence at the end of the 20th century,online Chinese literature has developed rapidly.As per the China Internet Network Information Center,502 million people were reading online Chinese literature by the end of 2021,an overall scale never seen before in literary history.And the overseas influence of online Chinese literature continues growing. | Shao Yanjun Kim Hana | 2022 | China Pictorial2022,,5: | 0 |
| 8 | Propofol protects against high glucose-mediated endothelial injury via inhibition of COX2 and iNOS expressions显示文摘Perioperative hyperglycemia is a common metabolic disorder in the clinic.Hyperglycemia,via upregulation of E74-like ETS transcription factor 3(ELF3),induces cyclooxygenase 2(COX2)and inducible nitric oxide synthase(iNOS)expressions,thus leading to endothelial apoptosis and vascular endothelial injury.Propofol is a widely used anesthetic.In the present study,we explored whether and how propofol protects against high glucose-induced COX2 and iNOS expressions in human umbilical vein endothelial cells(HUVECs).We found that high glucose level decreases cell viability and increases COX2 and iNOS expressions in HUVECs.Our data also indicated that ELF3 overexpression participates in high glucose-mediated cell viability reduction and high glucose-induced COX2 and iNOS expressions.Moreover,propofol treatment improves high glucose-mediated reduction in cell viability and decreases COX2 and iNOS expressions via inhibition of ELF3 expressions.Furthermore,specificity protein 1(SP1)was found to regulate ELF3 expression,thus mediating endothelial injury.Propofol inhibits high glucose-induced SP1 expression.High glucose increases the abundance of SP1 bound to the ELF3 promoter,which can be reversed by propofol treatment.The protective effect of propofol is reversed by SP1 overexpression.In conclusion,propofol downregulates high glucose-induced SP1 expression,thus attenuating high glucose-induced ELF3 expression,inhibiting high glucose-induced COX2 and iNOS expressions,and improving high glucose-mediated cell viability reduction in HUVECs. | Jiayun Shao Juan Ding Lihong Lu Wenting Hou Fei Wang Zhirong Sun Hui Jiang Yanjun Zhao | 2022 | Acta Biochimica et Biophysica Sinica2022,54,4: | 0 |