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| 1 | Review of soot measurement in hydrocarbon-air flames显示文摘Soot,which is produced in fuel-rich parts of flames as a result of incomplete combustion of hydrocarbons,is the No.2 contributor to global warming after carbon dioxide.Developing soot measurement techniques is important to understand soot formation mechanism and control soot emission.The various soot measurement techniques,such as thermophoretic sampling par-ticles diagnostics followed by electron microscopy analysis,thermocouple particle densitometry,light extinction,laser-induced incandescence,two-color method,and emission computed tomography,are reviewed in this paper.The measurement principle and application cases of these measurement methods are described in detail.The development trend of soot measurement is to realize the on-line measurement of multi-dimensional distributions of temperature,soot volume fraction,soot particle size and other parameters in hydrocarbon-air flames.Soot measurement techniques suitable for both small flames in laboratories and large-scale flames in industrial combustion devices should be developed.Besides,in some special situations,such as high-pressure,zero gravity and micro-gravity flames,soot measurement also should be provided. | LOU Chun,CHEN Chen,SUN YiPeng&ZHOU HuaiChun State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,China | 2010 | Science China(Technological Sciences)2010，53，8： | 13 |
| 2 | Enantioselective separation and zebrafish embryo toxicity of insecticide beta-cypermethrin显示文摘Enantioselectivity of chiral pollutants is receiving growing concern due to the difference in toxicology and environment fate between enantiomers.In this study,enantiomers of insecticide beta-cypermethrin (beta-CP) were separated on selected chiral column by HPLC,and the toxicity of enantiomers was evaluated using the zebrafish embryo-larval assays.The enantiomers of beta-CP were baseline separated on Chiralcel OD and Chiralpak AD columns and detected by circular dichroism (CD) at 236 nm.Better separation could be achieved at lower temperature (e.g.,20°C) and with lower levels of polar modifiers.Pure enantiomers were obtained on Chiralcel OD.The CD spectra of enantiomers were recorded.By comparing the elution order with a previous similar study,the absolute configuration of beta-CP enantiomers was determined.The individual enantiomers were used in zebrafish embryo test,and the results showed that beta-CP enantioselectively induced yolk sac edema,pericardial edema and crooked body.The 1R-cis-αS and 1R-trans-αS enantiomers showed strong developmental toxicities at concentration of 0.1 mg/L,while the 1S-cis-αR and 1S-trans-αR induced no malformations at higher concentration (e.g.,0.3 mg/L).The results suggest that the enantioselective toxicological effects of beta-CP should be considered when evaluating its ecotoxicological effects. | Chao Xu,Wenqing Tu,Chun Lou,Yingying Hong,Meirong Zhao Research Center of Environmental Science,College of Biological and Environmental Engineering,Zhejiang University of Technology,Hangzhou 310032,China. | 2010 | Journal of Environmental Sciences2010，22，5： | 8 |
| 3 | Non-oxidative aromatization of C1 to C3 hydrocarbons over Pd-promoted Ga/HZSM-5 catalyst under mild conditions显示文摘The Pd-promoted Ga/HZSM-5 catalyst was prepared by impregnation method and its catalytic activity for non-oxidativearomatization of C1 to C3 hydrocarbons was assessed using a microreactor-GC system operated with temperature at 823 K andspace velocity at 410 h1.The catalyst is more catalytically active for methane conversion than Ga/HZSM-5.The massspectroscopy analyses confirmed that13CH4 was converted to aromatic products. | Xiao Chun Shen Hui Lou Kai Hu Xiao Ming Zheng | 2007 | Chinese Chemical Letters2007，18，4： | 4 |
| 4 | The impact of combustion characteristics and flame structure on soot formation in oxy-enhanced and oxy-fuel diffusion flames显示文摘Based on a detailed chemical mechanism, impacts of combustion characteristics and flame structure on soot formation in opposed-flow diffusion ethylene flames was studied with different stoichiometric mixture fractions in O2/N2and O2/CO2atmospheres. The results showed the followings. 1) In both atmospheres, with the increase of stoichiometric mixture fraction, the flame structure changed significantly. The stagnation plane shifted toward the oxidizer side. Furthermore, there were less C2H2 but more O and OH to occur in the soot inception zone, therefore the amount of soot in the flame decreased. 2) Compared withN2, CO2had a suppression effect on soot formation, which was mainly due to thermal and direct chemical interaction effects of CO2. This is because the specific heat capacity of CO2is higher than that of N2, which will cause the flame temperature to drop,and mole fractions of C2H2, H, O, OH and main PAHs to decrease. Soot oxidation played a dominant role, while soot surface growth was attributed to the secondary position. Meanwhile, when CO2 abounded in the flame, OH concentration was increased through the backward reaction of CO+OH=CO2+H, and this would be conducive to the oxidation of soot precursor and incipient soot particles. In addition, the results of maximum particle density indicated the thermal effect of CO2on soot for-mation is more important than the direct chemical interaction effect. | GUO Zhe LOU Chun LIU ZhengDong ZHOU HuaiChun | 2013 | Science China(Technological Sciences)2013，56，7： | 3 |
| 5 | Controlled Radical Polymerization of Styrene in the Presence of Different Copper Complexes and Organic Halides显示文摘The polymerization behaviors of Styrene (St) in the presence of CuX/L [X=Cl or Br; L= 2,2 bipyridine (bpy), 1,10 phenanthroline (phen) or 4,7 diphenyl 1,10 phenanthroline (DPP) ] and R X (R=trichloromethyl, benzyl or allyl; X=Cl or Br) have been studied and examined. In a CuCl/bpy/RCl/St system, a bimodal GPC peak at the early stage of polymerization was observed, and a concept of multi active species was proposed to explain this phenomenon. In a CuCl/phen (DPP)/RCl/St system, the \%M\%\-n of polystyrene (PS) increased linearly with St conversion and ln[M] o/[M] also increased linearly with time, indicating the living nature of this system. Furthermore, the stability of the propagating active species in a CuBr/phen/RBr/St system is higher than that in the CuBr/phen/RBr/St system. | CHENG Guang lou, HU Chun pu \{**\} and YING Sheng kang (Laboratory of Living Polymerization, East China University of Science and Technology, Shanghai 200237, P.R. China) (Received August 28, 1998) | 1999 | Chemical Research in Chinese Universities1999，15，4： | 2 |
| 6 | Diagnosis,treatment,and prevention of severe acute hepatitis of unknown etiology in children显示文摘Background Severe acute hepatitis of unknown etiology in children has recently exhibited a global trend of concentrated occurrence.This review aimed to summarize the current available information regarding the outbreak of severe acute hepatitis and introduce our hospital’s previous experiences with the diagnosis and treatment of severe acute hepatitis for reference.Data sources Websites including the UK Health Security Agency,European Centre for Disease Prevention and Control,CDC,WHO,and databases including PubMed/Medline,Cochrane Library,Embase and Web of Science were searched for articles on severe acute hepatitis in children.Results As of May 26,2022,a total of 650 cases have been reported in 33 countries;at least 38(6%)children required liver transplantation,and nine(1%)died.Cases are predominantly aged between 3 and 5 years old,and there are no epidemiological links among them.The common manifestations are jaundice,vomiting and pale stools.Adenovirus tested positive in most cases,and SARS-CoV-2 and other viruses were detected in a few cases,but virus particles were not found in liver tissue.Adenovirus immunohistochemistry showed immunoreactivity in the intrasinusoidal lumen from some liver samples.The hierarchical treatment includes symptomatic and supportive therapy,management of coagulation disorders and hepatic encephalopathy,artifcial liver support,and liver transplantation(approximately 6%–10%of cases require liver transplant).Conclusions The etiology of this severe acute hepatitis in children is not clear.The clinical features are severe acute hepatitis with signifcantly elevated liver enzymes.Clinicians need to be alert to children with hepatitis. | Ying‑Hu Chen Jin‑Gan Lou Zi‑Hao Yang Qing‑Jiang Chen Chun‑Zhen Hua Sheng Ye Chen‑Mei Zhang Jie Chen Zong‑Wei Huang Jin‑Dan Yu Zhi‑Gang Gao Qiang Shu | 2022 | World Journal of Pediatrics2022，18，8： | 2 |
| 7 | Sanguinarine suppresses prostatetumor growth and inhibits survivinexpression显示文摘 | Sun M Lou W Chun JY et a/ | 2010 | Genes Cancer2010，1，3： | 1 |
| 8 | Experimental investigation on simultaneous measurement of temperature distributions and radiative properties in an oil-fired tunnel furnace by radiation analysis显示文摘 | Chun Lou Wen-Hao Li Huai-Chun Zhou Carlos T. Salinas | 2010 | International Journal of Heat and Mass Transfer2010，，1： | 1 |
| 9 | Experimental investigations on visualization of three-dimensional temperature distributions in a large-scale pulverized-coal-fired boiler furnace 显示文摘 | Huai-Chun Zhou Chun Lou Qiang Chen | 2005 | Proceedings of the Combustion Institute2005，30，： | 1 |
| 10 | Reaction kinetics simulation of m-xylene isomerization over HZSM-5zeolite catalyst显示文摘 | Chen Jinxian Zhang Chun Lou Yueyun | 2012 | Journal of Nanjing Universsity of Technology(Natural Science Edition)2012，34，3： | 1 |
| 11 | Deduction of the two-dimensional distribution of temperature in a cross section of a boiler furnace from images of flame radiation显示文摘 | Lou Chun Zhou Huaichun | 2005 | Combustion and Flame2005，143，12： | 1 |
| 12 | Experimental investigations on visualization of three-dimensional temperature distributions in a large-scale pulverized-coal-fired boiler furnace显示文摘 | Zhou Huachun Lou Chun Cheng Qiang | 2005 | Proceedings of the Combustion Institute2005，30，1： | 1 |
| 13 | Sanguinarine suppresses prostate tumor growth and inhibits survivin expression 显示文摘 | Sun M Lou W Chun J Y | 2010 | Genes Cancer2010，1，3： | 1 |
| 14 | Experimental Investigations on Visualization of Three-dimensional Temperature Distributions in a Large-scale Pulverized coal-fired Boiler Furnace显示文摘 | Zhou Huaichun Lou Chun Cheng Qiang | 2005 | Proc Combust Inst2005，30，： | 1 |
| 15 | A phaseⅡStudy of paclitaxel and nedaplatin as first–line chemotherapy in patients with advanced esophageal cancer显示文摘 | Cao Wei Xu Chun Lou Guying | 2009 | Jpn J Clin Oncol2009，39，9： | 1 |
| 16 | Intra-and inter-specific effects of the brown planthopper and white backed planthopper on their population performance显示文摘 | CHENG Jia an ZHAO Wei chun LOU Yong gen | | 0，，01： | 1 |
| 17 | Spatial and temporal film thickness measurement of a soap bubble based on large lateral shearing displacement interferometry 显示文摘 | LV Wei ZHOU Huaichun LOU Chun | 2012 | Applied Optics2012，51，36： | 1 |
| 18 | Deduction of the two-dimensional distribution of temperature in a cross section of a boiler furnace from images of flame radiation 显示文摘 | Lou Chun Zhou Huaichun | 2005 | Combustion and Flame2005，143，12： | 1 |
| 19 | Experimental investigations on visualization of three-dimensional temperature distributions in a large-scale pulverized-coal-fired boiler furnace 显示文摘 | Zhou Huaichun Lou Chun Cheng Qiang | 2005 | Proceedings of the Combustion Institute2005，30，1： | 1 |
| 20 | Experimental investigations on visualization of threedimensional temperature distributions in a large-scale pulverized-coal-fired boiler furnace 显示文摘 | Huai-Chun Zhou Chun Lou Qiang Cheng | 2005 | Proceedings of the Combustion Institute2005，30，： | 1 |
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