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Fixation of CO_2 by electrocatalytic reduction to synthesis of dimethyl carbonate in ionic liquid using effective silver-coated nanoporous copper composites

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Chinese Chemical Letters 2010年第8期21卷 987-990页

作者： Xuan Yun Wang Su Qin liu Ke Long huang Qiu Ju Feng De Lai Ye Bing liu jin Long liu Guan hua jin College of Chemistry and Chemical Engineering Central South UniversityChangsha 410083China

With high surface area,open porosity and high efficiency,a catalyst was prepared and firstly employed in electrocatalytic reduction of CO2 and electrosynthesis of dimethyl carbonate（DMC）.The electrochemical property for electrocatalytic reduction of CO2 in ionic liquid was studied by cyclic voltammogram（CV）.The effects of various reaction variables like temperature,working potential and cathode materials on the electrocatalytic performance were also investigated.80%yield of DMC was obtained under the optimal reaction conditions.

关键词： Electrocatalytic Carbon dioxide Nanoporous Dimethyl carbonate Ionic liquid

Identification of novel genes associated with duck OASL in response to influenza A virus

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Journal of Integrative Agriculture 2019年第7期18卷 1451-1459页

作者： WANG Xiao-xue LU Chang RONG En-guang HU Jia-xiang XING Yan-ling liu Zheng-yu GAO Chu-ze liu jin-hua huaNG Yin-hua State Key Laboratory of Agrobiotechnology China Agricultural UniversityBeijing 100193P.R. China Key Laboratory of Animal Epidemiology and Zoonosis Ministry of Agriculture/College of Veterinary MedicineChina Agricultural UniversityBeijing 100193P.R.China

2′-5′-Oligoadenylate synthetase like protein(OASL) plays a key role in response to viral infections through selectively activating the OAS/RNase L or OASL/RIG-I signaling *** classic pathway of OASL is well-known,its regulated genes or co-actors are largely *** study the possible molecular mechanism of duck OASL(dOASL),we performed RNA-sequencing(RNA-seq) and immunoprecipitation and mass spectrometry(IP-MS) at the level of mRNA and protein,*** RNA-seq,we used DF1 cell lines(DF1 dO ASL+/+,DF1 cO ASL–/–,and DF1) with or without the CK/0513 H5 N1 virus(A/chicken/huabei/0513/2007) infection.1 737 differentially expressed genes(DEGs) were identified as candidate target genes regulated by *** Ontology(GO),Kyoto Encyclopedia of Genes and Genomes(KEGG) analysis and Weighted Correlation Network Analysis(WGCNA) were *** identified one important yellow co-expression module correlated with antiviral immune *** this module,Ankyrin repeat and FYVE domain containing 1(ANKFY1),harboring a BTB domain similar to the methyl CpG-binding protein 1(MBD1) which bound to OASL in human,was regulated by *** protein level,133 host proteins were ***,ANKFY1 was one of them binding to dOASL *** phylogenomic and chromosomal syntenic analysis demonstrated MBD1 was absent in birds,while mammals *** is suggested that OASL-ANKFY1 interaction might act as a compensatory mechanism to regulate gene expression in *** findings will provide a useful resource for the molecular mechanism research of dOASL.

关键词： duck OASL ANKFY1 compensatory mechanism influenza A virus

A duplex RT-PCR assay for detection of H9 subtype avian influenza viruses and infectious bronchitis viruses

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Journal of Integrative Agriculture 2016年第9期15卷 2105-2113页

作者： WEI Yan-di GAO Wei-hua SUN Hong-lei YU Chen-fang PEI Xing-yao SUN Yi-peng liu jin-hua PU Juan Key Laboratory of Animal Epidemiology and Zoonosis Ministry of Agriculture/College of Veterinary Medicine/State Key Laboratory of Agrobiotechnology China Agricultural University

H9 s ubtype avian influenza virus（AIV） and infectious bronchitis virus（IBV） are major pathogens circulating in poultry and have resulted in great economic losses due to respiratory disease and reduced egg production. As similar symptoms are elicited by the two pathogens, it is difficult for their differential diagnosis. So far, no reverse transcription-polymerase chain reaction（RT-PCR） assay has been found to differentiate between H9 AIV and IBV in one reaction. Therefore, developing a sensitive and specific method is of importance to simultaneously detect and differentiate H9 AIV and IBV. In this study, a duplex RT-PCR（d RT-PCR） was established. Two primer sets target the hemagglutinin（HA） gene of H9 AIV and the nucleocapsid（N） gene of IBV, respectively. Spec ific PCR products were obtained from all tested H9 AIVs and IBVs belonging to the major clades circulating in China, but not from AIVs of other subtypes or other infectious avian viruses. The sensitivity of the d RT-PCR assay corresponding to H9 AIV, IBV and mixture of H9 AIV and IBV were at a concentration of 1×10^1, 1.5×10^1 and 1.5×10^1 50% egg infective doses（EID_（50）） m L^–1, respectively. The concordance rates between the d RT-PCR and virus isolation were 99.1 and 98.2%, respectively, for detection of samples from H9N2 AIV or IBV infected chickens, while the concordance rate was 99.1% for detection of samples from H9N2 AIV and IBV co-infected chickens. Thus, the d RT-PCR assay reported herein is specific and sensitive, and suitable for the differential diagnosis of clinical infections and survei llance of H9 AIVs and IBVs.

关键词： avian influenza viruses H9 subtype infectious bronchitis viruses duplex RT-PCR

Nested RT-PCR method for the detection of European avian-like H1 swine influenza A virus

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Journal of Integrative Agriculture 2016年第5期15卷 1095-1102页

作者： WEI Yan-di PEI Xing-yao ZHANG Yuan YU Chen-fang SUN Hong-lei liu jin-hua PU Juan Key Laboratory of Animal Epidemiology and Zoonosis Ministry of Agriculture/State Key Laboratory of Agrobiotechnology/College of Veterinary Medicine China Agricultural University Beijing 100193 P.R. China China Institute of Veterinary Drug Control Beijing 100086 P.R. China

Swine influenza A virus（swine IAV） circulates worldwide in pigs and poses a serious public health threat, as evidenced by the 2009 H1N1 influenza pandemic. Among multiple subtypes/lineages of swine influenza A viruses, European avian-like（EA） H1N1 swine IAV has been dominant since 2005 in China and caused infections in humans in 2010. Highly sensitive and specific methods of detection are required to differentiate EA H1N1 swine IAVs from viruses belonging to other lineages and subtypes. In this study, a nested reverse transcription（RT）-PCR assay was developed to detect EA H1 swine IAVs. Two primer sets（outer and inner） were designed specifically to target the viral hemagglutinin genes. Specific PCR products were obtained from all tested EA H1N1 swine IAV isolates, but not from other lineages of H1 swine IAVs, other subtypes of swine IAVs, or other infectious swine viruses. The sensitivity of the nested RT-PCR was improved to 1 plaque forming unit（PFU） m L^（-1） which was over 10~4 PFU m L^（-1） for a previously established multiplex RT-PCR method. The nested RT-PCR results obtained from screening 365 clinical samples were consistent with those obtained using conventional virus isolation methods combined with sequencing. Thus, the nested RT-PCR assay reported herein is more sensitive and suitable for the diagnosis of clinical infections and surveillance of EA H1 swine IAVs in pigs and humans.

关键词： nested RT-PCR swine influenza A virus European avian-like H1 HA gene molecular diagnosis

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乌贼骨及其水热改性制备羟基磷灰石的研究

无机材料学报 2006年第2期21卷 433-440页

作者：刘金华王大志中国科学技术大学材料科学与工程系合肥230026

运用X射线衍射(XRD)、傅立叶变换红外光谱(FTIR)、热重-差热(TG-DTA)、扫面电子显微镜(SEM)等分析方法对水热改性前及改性不同阶段乌贼骨的矿物组成、表面形貌等进行了表征、分析,并对水热反应机理进行了研究．结果显示,原始乌贼骨主要... 详细信息

运用X射线衍射(XRD)、傅立叶变换红外光谱(FTIR)、热重-差热(TG-DTA)、扫面电子显微镜(SEM)等分析方法对水热改性前及改性不同阶段乌贼骨的矿物组成、表面形貌等进行了表征、分析,并对水热反应机理进行了研究．结果显示,原始乌贼骨主要由棒状文石层堆砌而成,外观呈多孔的房架式结构．在磷酸盐溶液中水热处理后,内部的文石经由固态局部规整离子交换反应(Solid-state topotactic ion exchange reaction)转变为羟基磷灰石,原来文石结晶体的形貌及规则排列方式没有改变;而外表面文石则通过溶解-重结晶(Dissolutionrecrystallization) 过程转变为鳞片状的羟基磷灰石,随着水热处理时间的延长,鳞片状羟基磷灰石进一步自组装成5μm左右的规则圆球,本文对自组装的机理也做了初步探讨．

关键词：乌贼骨羟基磷灰石水热反应反应机理

Local magnetic moment oscillation around an Anderson impurity on graphene

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 192-201页

作者： Shuai Li Zhen Ma jin-hua Gao School of Science Hebei University of Science and Technology School of Electronics and Information Zhengzhou University of Light Industry School of Physics and Wuhan National High Magnetic Field Center Huazhong University of Science and Technology

We theoretically investigate the spin resolved Friedel oscillation （FO） and quasiparticle interference （QPI） in graphene induced by an Anderson *** the impurity becomes magnetic,the resulted FO becomes spin dependent,which gives rise to a local magnetic moment oscillation with an envelop decaying as r-2in real space in the doping ***,at half filling,the electron density and local magnetic moment will not oscillate but decay as *** spin resolved FO has both sublattice and spin ***,the local magnetic moment decay at half filling only occurs at one sublattice of graphene,which is quite like the phenomenon observed in the STM experiment (***ález-Herrero et al.,Science 352,437 （2016）).We further give an analytic formula about such spin dependent FO based on the stationary phase ***,we study the interference of quasiparticles around the magnetic impurity by calculating the spin dependent Fourier-transformed local density of states （FT-LDOS）.Our work gives a comprehensive understanding about the local magnetic moment oscillation around an Anderson impurity on graphene.

关键词： Friedel oscillation local magnetic moment graphene Anderson impurity

OXIDATIVE DEGRADATION OF BILIVERDIN AND BILIRUBIN ESTERS IN PRESENCE OF SILVER NITRATE

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Chinese Chemical Letters 1990年第1期1卷 39-40页

作者： jin Shi MA Chang Qi WANG Fang YAN Yong Yong liu jin hua CHEN Institute of Photographic Chemistry,Academia Sinica,Beijing 100012

Treatment of biliverdin IXα dimethyl ester(2)with silver nitrate in alkaline solution gave two violin-like tripyrrione carbaldehydes,one de- graded at C15-C16,other at *** IXα(1),bilirubin IXα(3)and its dimethyl es... 详细信息

关键词： OXIDATIVE DEGRADATION OF BILIVERDIN AND BILIRUBIN ESTERS IN PRESENCE OF SILVER NITRATE ABX

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一种新的空间数据不确定性重建方法

电子学报 2018年第3期46卷 641-645页

作者：张挺刘金华上海电力学院计算机科学与技术学院上海200090 浙江传媒学院电子信息工程系浙江杭州310018

在重建空间数据时,如果条件数据较少甚至没有任何条件数据,重建结果常常出现较多的不确定性,此时适合采用基于统计原理的随机模拟方法重建空间数据.多点信息统计法(Multiple-Point Statistics,MPS)是目前随机模拟的主流方法,它可以将训... 详细信息

在重建空间数据时,如果条件数据较少甚至没有任何条件数据,重建结果常常出现较多的不确定性,此时适合采用基于统计原理的随机模拟方法重建空间数据.多点信息统计法(Multiple-Point Statistics,MPS)是目前随机模拟的主流方法,它可以将训练图像中提取的本质特征复制到重建区域.由于传统采用线性降维的MPS无法较好处理非线性数据,而局部线性嵌入(Locally Linear Embedding,LLE)可以实现对非线性数据的降维,因此提出LLE与MPS相结合的空间数据不确定性重建方法.利用该方法对图像数据进行重建实验,实验结果证明该方法的有效性.

关键词：模式多点信息统计法非线性局部线性嵌入重建

基于超临界火电站锅炉用材的超临界水冷却反应堆堆芯候选材料分析

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核动力工程 2009年第2期30卷 55-58页

作者：刘金华李长香中国核动力研究设计院空泡物理和自然循环重点实验室成都60041

堆芯材料是超临界水冷却反应堆(SCWR)能否实现的重要制约因素之一,而与其工作环境最为相近的当属超临界火电站(SCU)锅炉用材。本文对比分析了SCWR堆芯材料与SCU锅炉用材的力学性能、使用温度、工作介质等要求,提出SCU锅炉用材T23、T91、... 详细信息

堆芯材料是超临界水冷却反应堆(SCWR)能否实现的重要制约因素之一,而与其工作环境最为相近的当属超临界火电站(SCU)锅炉用材。本文对比分析了SCWR堆芯材料与SCU锅炉用材的力学性能、使用温度、工作介质等要求,提出SCU锅炉用材T23、T91、T122、316、TP347H(FG)、Super304H可作为SCWR堆芯候选材料。

关键词：超临界水冷却堆锅炉反应堆材料