维普中文期刊产品整合服务
26篇 您的检索式:作者名="Yongming Fan"
    题名 作者 年代 出处 被引量
1A Novel Single-Nucleotide Mutation in a CLAVATA3 Gene Homolog Controls a Multilocular Silique Trait in Brassica rapa L.显示文摘Chuchuan Fan, Yudi Wu, Qingyong Yang, Yang Yang, Qingwei Meng, Keqiao Zhang, Jinguo Li, Jinfang Wang Yongming Zhou 2014Molecular Plant2014,7,12:12
2Structural Changes of Wheat Straw Lignin during Formic Acid Treatment显示文摘The aromatic nature of lignin makes it a potential renewable source of chemicals and other valuable products.Isolation of lignin from lignocellulosic biomass using organic solvents enables the production of high-purity lignin.The use of formic acid in the organosolv pulping and fractionation process has been widely studied.Characterization of lignin is necessary to achieve valueadded applications of lignin.To simplify the isolation of formic acid-treated lignin,herein,milled wheat straw lignin(MWSL) was employed as an archetype for characterization of the structural changes of lignin during formic acid treatment.The results showed that the MWSL was GSH-type(comprising p-hydroxyphenyl(H),guaiacyl(G),and syringyl(S) monolignols) and underwent structural changes during formic acid treatment.Lignin was esterified during the formic acid treatment.The content of alkyl hydroxyl groups in lignin decreased upon formic acid treatment,corresponding to an increase of the number of double bond equivalents(DBE).Lignin units with active reaction sites were liable to slight condensation,which resulted in a moderate increase of the molecular weight.The molecular weight distribution of formic acid-treated MWSL(FMWSL) was wider than that of the MWSL,although the molecular weight of both species did not differ significantly.The β-O-4 linkage in lignin was partially cleaved during formic acid treatment,resulting in the production of new phenolic structures.This improved the solubility of lignin in the cooking liquor and its reactivity for downstream applications.RuiXue Dong XiuWen Mei Chang Ma MingFei Li YongMing Fan 2016Paper And Biomaterials2016,1,2:5
3TG-FTIR Study on the Pyrolysis Properties of Lignin from Different Kinds of Woody Biomass显示文摘Pyrolysis properties of lignin separated from four different kinds of wood(fir, larch, poplar, and eucalyptus) compared with commercial lignin were investigated using a thermogravimetric analyzer coupled to a Fouriertransform infrared spectrometer(TG-FTIR). Kinetic parameters of lignin thermal cracking reaction, such as activation energy and pre-exponential factor, were calculated using a three-dimensional diffusion model. The carbon residue rate and activation energy of softwood lignin were higher than those of hardwood lignin, showing that the decomposition of the former is relatively more difficult than that of the latter during pyrolysis. The distinct characteristic peaks of small-molecule gases and oxygenated chemicals such as ethers, phenols, acids, aldehydes, and alcohols were observed near the maximum weight loss rate by analyzing the 3D IR spectrum of the gas phase products. The formation routes of the main gaseous products were discussed, and the following order of releasing amounts was noted: CO_2>CH_4>H_2O>CO. It is believed that these results will provide valuable information for the thermo-chemical conversion process of lignin from the point of view of feedstock.XueYong Ren HongZhen Cai JianMin Chang YongMing Fan 2018Paper And Biomaterials2018,3,2:4
4Preparation of Aminated Lignin through Etherification and Amination显示文摘A new method for the preparation of aminated lignin(AEL) through etherification and amination reaction was presented. Chlorine atoms were firstly introduced into lignin through its etherification with epichlorohydrin. Then, hydrophilic amine groups were grafted to the modified lignin structure through amination with ethylenediamine to obtain AEL. Subsequent acidification of AEL led to the ionized aminated lignin(IAEL). The results of our analyses showed that the nitrogen content of AEL was 6.9%. Foaming and emulsifying experiments indicated that AEL had better foamability and emulsifying properties than IAEL. Surface tension tests showed that AEL and IAEL had similar critical micelle concentration(CMC). However, IAEL had lower surface tension(36.33 mN/m) than AEL(42.89 mN/m) at CMC. These results demonstrate the promising applicability of AEL as an emulsifier and that of IAEL as feedstock in the production of detergent and dispersant.ChangZhou Chen BingXin Wang YanRu Zhang Ting Shi Jun Liu XiLuan Wang YongMing Fan 2018Paper And Biomaterials2018,3,2:4
5Design of SERS nanoprobes for Raman imaging:materials, critical factors and architectures显示文摘Raman imaging yields high specificity and sensitivity when compared to other imaging modalities, mainly due to its fingerprint signature. However, intrinsic Raman signals are weak, thus limiting medical applications of Raman imaging. By adsorbing Raman molecules onto specific nanostructures such as noble metals, Raman signals can be significantly enhanced, termed surfaceenhanced Raman scattering(SERS). Recent years have witnessed great interest in the development of SERS nanoprobes for Raman imaging. Rationally designed SERS nanoprobes have greatly enhanced Raman signals by several orders of magnitude, thus showing great potential for biomedical applications.In this review we elaborate on recent progress in design strategies with emphasis on material properties,modifying factors, and structural parameters.Mingwang Li Yuanyuan Qiu Chenchen Fan Kai Cui Yongming Zhang Zeyu Xiao 2018Acta Pharmaceutica Sinica B2018,8,3:3
6Performance and theoretical study on corrosion inhibition of 2-(4-pyridyl)-benzimidazole for mild steel in hydrochloric acid显示文摘Fan Zhang Yongming Tang Ziyi Cao Wenheng Jing Zhenglei Wu Yizhong Chen 2012Corrosion Science2012,,:2
7Crucial control measures to contain China's first Delta variant outbreak显示文摘The SARS-C oV-2 B.1.617.2(Delta) variant flared up in late May in Guangzhou,China.Transmission characteristics of Delta variant were analysed for 153 confirmed cases and two complete transmission chains with seven generations were fully presented.A rapid transmission occurred in five generations within10 days.The basic reproduction number(R_0) was 3.60(95% confidence interval:2.50-5.30).After redefining the concept of close contact,the proportion of confirmed cases discovered from close contacts increased from 43% to 100%.With the usage of a yellow health code,the potential exposed individuals were self-motivated to take a nucleic acid test and regained public access with a negative testing result.Facing the massive requirement of screening,novel facilities like makeshift inflatable laboratories were promptly set up as a vital supplement and 17 cases were found,with 1 pre-symptomatic.The dynamic adjustment of these three interventions resulted in the decline of Rt from 5.00 to 1.00 within 9 days.By breaking the transmission chain and eliminating the transmission source through extending the scope of the close-contact tracing,health-code usage and mass testing,the Guangzhou D elta epidemic was effectively contained.Lei Luo Zifeng Yang Jingyi Liang Yu Ma Hui Wang Chitin Hon Mei Jiang Zhengshi Lin Wenda Guan Zhitong Mai Yongming Li Kailin Mai Zhiqi Zeng Chuanmeizi Tu Jian Song Bin Liu Yong Liu Jianfeng He Huiyuan Li Bosheng Li Hang Dong Yutian Miao Shujun Fan Lirui Fan Xingyi Liang Ke Li Chun Chen Huihong Deng Zhicong Yang Nanshan Zhong 2022National Science Review2022,9,4:2
8An Overview and Experimental Study of Learning-Based Optimization Algorithms for the Vehicle Routing Problem显示文摘The vehicle routing problem(VRP)is a typical discrete combinatorial optimization problem,and many models and algorithms have been proposed to solve the VRP and its variants.Although existing approaches have contributed significantly to the development of this field,these approaches either are limited in problem size or need manual intervention in choosing parameters.To solve these difficulties,many studies have considered learning-based optimization(LBO)algorithms to solve the VRP.This paper reviews recent advances in this field and divides relevant approaches into end-to-end approaches and step-by-step approaches.We performed a statistical analysis of the reviewed articles from various aspects and designed three experiments to evaluate the performance of four representative LBO algorithms.Finally,we conclude the applicable types of problems for different LBO algorithms and suggest directions in which researchers can improve LBO algorithms.Bingjie Li Guohua Wu Yongming He Mingfeng Fan Witold Pedrycz 2022IEEE/CAA Journal of Automatica Sinica2022,9,7:2
9Multiva- riate modular metabolic engineering of Escherichia coli to produce resveratrol from L-tyrosine显示文摘Wu Junjun Liu Peiran Fan Yongming 2013Journal of Bio- technology2013,167,4:1
10显示文摘Gong Aijun Fan Qinghua Chen Yongming 2000Journal of Molecular Catalysis A:Chemical2000,159,2:1
11Two-phase hydroformylation reaction catalysed by rhodium-complexed watersoluble dendrimers显示文摘Gong A Fan Qinghua Chen Yongming 2000Journal of Molecular Catalysis A:Chemical2000,159,:1
12Simultaneous determination of 405 pesticide redldues in grain by accelerated solvent extraction then gas chromatography-mass spectrometry or liquid chromatography-tandem mass spectrometry 显示文摘PANG Guofang LIU Yongming FAN Chunlin 2006Anal Bioanal Chem2006,384,:1
13Cold sodium hydroxide/urea based pretreatment of bamboo for bioethanol production: characterization of the cellulose rich fraction显示文摘Li Mingfei Fan Yongming Xu Feng 2010Ind Crops Prod2010,32,:1
14Simultaneous determination of 405 pesticide residues in grain by accelerated solvent extraction then gas chromatography-mass spectrometry or liquid chromatography-tandem mass spectrometry显示文摘PANG Guofang LIU Yongming FAN Chunlin ZHANG Jinjie CAO Yanzhong 2006Anal Bioanal Chem2006,384,6:1
15Self - correction Project in Solving DC Drift in Zero - intermediate Froqueney Structure 显示文摘Fan Jun Li Yongming 2005Mieroeleetronies2005,35,2:1
16Synthesis of Humin-based Carbon Quantum Dots and Luminescent Properties显示文摘The unique properties of carbon quantum dots(CQDs) make them promising materials in many fields. Herein, we present a facile method for the preparation of photo-luminescent CQDs using humins as the carbon precursor for the purpose of providing a high value-added solution for this 'biomass conversion process waste'. The structure of the CQDs was analyzed, and the effects of reaction temperature and time on the CQDs' fluorescence were investigated. The results showed that humins were effectively carbonized during the reaction. The fluorescence intensity of humin-based CQDs initially increased with reaction temperature and time, and subsequently decreased beyond 200℃ and 4 h. Polyaromatic structures and hydrophilic groups such as O—H, C—O, —COOH and C==O groups exist in the CQDs. The huminbased CQDs have the dimension of 3~7 nm with an average size of about 5.5 nm. The highest emission intensity of blue/cyan fluorescence light at 440 nm is achieved on the excitation with UV light at the wavelength of 330 nm.YanRu Zhang Ning Gao BingXin Wang Feng Peng YongMing Fan 2018Paper And Biomaterials2018,3,2:1
17Cold sodium hydroxide/urea based pretreatment of bamboo for bioethanol production:characterization of the cellulose rich fraction显示文摘Li Mingfei Fan Yongming Xu Feng 0,,03:1
18Performance and theoretical study on corrosion inhibition of 2 (4-pyridyl)- benzimidazole for mild steel in hydrochloric acid显示文摘Zhang Fan Tan Yongming Cao Ziyi 2012Corro- sion Science2012,61,8:1
19Simultaneous determination of 405 pesticide residues in grain by accelerated solvent extraction then gas chromatography-mass spectrometry or liquid chromatography-tandem mass spectrometry显示文摘Pang Guofang Liu Yongming Fan Chunlin 2006Analytical and Bioanalytical Chemistry2006,384,:1
20Development of mutants with varying flowering times by targeted editing of multiple SVP gene copies in Brassica napus L.显示文摘Manipulation of flowering time to develop cultivars with desired maturity dates is fundamental in plant breeding.It is desirable to generate polyploid rapeseed(Brassica napus L.)germplasm with varying flowering time controlled by a few genes.In the present study,Bna SVP,a rapeseed homolog of the Arabidopsis SVP(Short Vegetative Phase)gene,was characterized and a set of mutants was developed using a CRISPR/Cas9-based gene-editing tool.A single construct targeting multiple sites was successfully applied to precisely mutate four copies of Bna SVP.The induced mutations in these copies were stably transmitted to subsequent generations.Homozygous mutants with loss-of-function alleles and free transgenic elements were generated across the four Bna SVP homologs.All mutant T_(1)lines tested in two environments(summer and winter growing seasons)showed early-flowering phenotypes.The decrease in flowering time was correlated with the number of mutated Bna SVP alleles.The quadruple mutants showed the shortest flowering time,with a mean decrease of 40.6%–50.7%in length relative to the wild type under the two growth conditions.Our study demonstrates the quantitative involvement of Bna SVP copies in the regulation of flowering time and provides valuable resources for rapeseed breeding.Sunny Ahmar Yungu Zhai Huibin Huang Kaidi Yu Muhammad Hafeez Ullah Khan Muhammad Shahid Rana Abdul Samad Shahid Ullah Khan Olalekan Amoo Chuchuan Fan Yongming Zhou 2022The Crop Journal2022,10,1:1
返回顶部 每页显示:
共2页 首页 上一页 第1页 下一页 末页 /2 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费