|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | The Genome of Medicinal Plant Macleaya cordata Provides New Insights into Benzylisoquinoline Alkaloids Metabolism显示文摘在动物农业和药的抗菌素的 overuse 引起了一系列潜在的威胁到公共健康。Macleaya cordata 是从 Papaveraceae 家庭的药用的植物种,提供为抗菌剂的制造的一个安全资源为家畜喂添加剂。从 M. 的活跃成分 ? cordata 被知道包括 benzylisoquinoline 碱(偏爱) 象 sanguinarine (圣) 和 chelerythrine (CHE ) 那样的 ?,而是他们的新陈代谢的小径还得在这非模型植物被学习。在 M. 的圣和 CHE 的活跃生合成 ? cordata 被喂 13标记 C 的酷氨酸。为了增加,推进卓见,我们 de novo 定序 M 的整个染色体。cordata,第一从 Papaveraceae 家庭被定序。M.? 盖住 378 Mb 的 cordata 染色体与 43.5%being 编码 22,328 预言的编码蛋白质的基因 transposable 元素。作为基础 eudicot 的一个成员, M.? cordata 染色体缺乏 ? 发生在几乎所有 eudicots 的 paleohexaploidy 事件。从 genomics 数据, 16 的一个完全的集合 ? 新陈代谢 ? 为圣和 CHE 生合成的基因被检索,并且 14 项他们的生物化学的活动被验证。这些 genomics 和新陈代谢的数据在 M. 显示出保存 BIA 新陈代谢的小径 ? cordata 并且由庄稼改进或微生物引起的小径重建为圣和 CHE 的未来生产提供知识基础。 | Xiubin Liu Yisong Liu Peng Huang Yongshuo Ma Zhixing Qing Qi Tang Huifen Cao Pi Cheng Yajie Zheng Zejun Yuan Yuan Zhou Jinfeng Liu Zhaoshan Tang Yixiu Zhuo Yancong Zhang Linlan Yu Jialu Huang Peng Yang Qiong Peng dinbo Zhang Wenkai Jiang Zhonghua Zhang Kui Lin Dae-Kyun Ro Xiaoya Chen Xingyao Xiong Yi Shang Sanwen Huang Jianguo Zeng | 2017 | Molecular Plant2017，10，7： | 19 |
| 2 | Influence of surface modification of SrFe12O19 particles with oleic acid on magnetic microsphere preparation显示文摘Oleic acid was used as surface modification agent to improve the hydrophobicity of magnetic strontium hexaferrite particles.The structure and properties of treated magnetic particles were characterized by scanning electronic microscopy(SEM),Fourier transform infrared spectra(FTIR),powder X-ray diffraction(XRD) and magnetic property measurement system(MPMS).The results show that oleic acid is chemically enwrapped on the surface of SrFe12O19 particles.Magnetic particles modified by oleic acid are highly dispersible and strongly responsive to magnetism but with slight decrease in saturated magnetization.The affinity between magnetic particles and monomers is improved by surface modification,resulting in increased particle incorporation in magnetic polymeric microspheres.The surface modification mechanism of magnetic particles by oleic acid is addressed in this work. | Sifang Kong Peipei Zhang Xiufang Wen Pihui Pi Jiang Cheng Zhuoru Yang Jing Hai | 2008 | Particuology2008，6，3： | 7 |
| 3 | Ensemble kernel method:SVM classification based on game theory显示文摘With the development of the support vector machine(SVM),the kernel function has become one of the cores of the research on SVM.To a large extent,the kernel function determines the generalization ability of the classifier,but there is still no general theory to guide the choice and structure of the kernel function.An ensemble kernel function model based on the game theory is proposed,which is used for the SVM classification algorithm.The model can effectively integrate the advantages of the local kernel and the global kernel to get a better classification result,and can provide a feasible way for structuring the kernel function.By making experiments on some standard datasets,it is verified that the new method can significantly improve the accuracy of classification. | Yufei Liu Dechang Pi Qiyou Cheng | 2016 | Journal of Systems Engineering and Electronics2016，27，1： | 6 |
| 4 | Aquathermolysis of conventional heavy oil with superheated steam显示文摘This paper presents a new aquathermolysis study of conventional heavy oil in superheated steam.A new high temperature autoclave was designed,where volume and pressure could be adjusted. Aquathermolysis was studied on two different conventional heavy oil samples under different reaction times and temperatures.Experimental results show that aquathermolysis does take place for conventional heavy oil.As reaction time increases,the oil viscosity reduces.However,the reaction will reach equilibrium after a certain period of time and won’t be sensitive to any further reaction time any more. Analysis shows that,while resin and asphaltenes decrease,saturated hydrocarbons and the H/C ratio increase after reaction.The main mechanism of aquathermolysis includes hydrogenization,desulfuration reaction of resin and asphaltenes,etc. | Song Guangshou Zhou Tiyao Cheng Linsong Wang Yunxian Tian Guoqing Pi Jian Zhang Zheng | 2009 | Petroleum Science2009，6，3： | 6 |
| 5 | Improved performance of aluminum pigments encapsulated in hybrid inorganic-organic films显示文摘An organic silane acrylate resin(PMBK) was synthesized by free-radical solution polymerization using methyl methacrylate,butyl acrylate and(3-methacryloxypropyl)trimethoxysilane as monomers.Aluminum(Al) particles were then encapsulated in inorganic-organic hybrid films that were prepared by hydrolysis and condensation of PMBK and tetraethyl orthosilicate(TEOS) on the surface of Al pigments.Characterization results showed that PMBK and TEOS could simultaneously hydrolyze and condense with hydroxyl groups on the surface of the Al particles to form composite Al particles coated with inorganic-organic hybrid films.Compared with raw Al particles,the corrosion resistance and adhesive properties of paint films containing the composite Al particles were improved greatly,while the glossiness of the paint films decreased slightly,from 48.6° to 47.0°.In alkaline media(pH 11),the volume of evolved H_2 of composite Al particles was only 3.5 mL,whereas that of raw Al was 83.5 mL.The glossiness of paint films containing composite Al particles decreased by 1.66%after immersion in alkaline media for24 h,whereas that of raw Al decreased by 14.82%.Peel-off tests of the paint films showed that the composite particles moved slightly away from the paint films.In contrast,the raw Al particles were seriously desquamated,suggesting encapsulation of hybrid films can greatly improve the adhesive properties of Al particles in paint films. | Pihui Pi Chao Liu Xiufang Wen Lianfu Zheng Shouping Xu Jiang Cheng | 2015 | Particuology2015，13，2： | 5 |
| 6 | Partially hydroxylated ultrathin iridium nanosheets as efficient electrocatalysts for water splitting显示文摘Ultrathin two-dimensional(2D)materials have attracted considerable attention for their unique physicochemical properties and promising applications;however,preparation of freestanding ultrathin 2D noble metal remains a significant challenge.Here,for the first time,we report use of a wet-chemical method to synthesize partially hydroxylated ultrathin Ir nanosheets(ir-NSs)of only five to six atomic layers*thickness.Detailed analysis indicates that the growth confinement effect of carbon monoxide and the partially hydroxylated surface play a critical role in formation of the ultrathin structure.The ultrathin Ir-NSs exhib让excellent performance for both the hydrogen evolution reaction and oxygen evolution reaction in a wide pH range,outperforming the state-of the-art Pt/C and IrO2,respectively.Density-functional theory calculations reveal that the partial hydroxylation not only enhances the surface electron transfer between Ir-sites and intermediate O-species,but also guarantees efficient irdtial activation ofbond cleavage of H-O-H for first-step H2O splitting.This;ultimately,breaks through barriers to full water splitting,with efficient electron transfer essentially maintained. | Zifang Cheng Bolong Huang Yecan Pi Leigang Li Qi Shao Xiaoqing Huang | 2020 | National Science Review2020，7，8： | 4 |
| 7 | Preparation and characterization of porous titania-grafted poly(styrene-divinylbenzene)/maleic anhydride nanocomposite microspheres显示文摘Mesoporous titania-grafted poly(styrene-divinylbenzene)/maleic anhydride [P(St-DVB)/MA] nanocomposite microspheres were prepared by an open ring reaction method.The titania nanoparticles were first modified by attachment of amino groups to their surface to prevent particle aggregation,and to allow the nanoparticles to covalently bond the polymer microspheres,the surface of which was modified by attachment of MA functional groups to enable the polymer to retain their porous structures and to react with the amino groups on the surface of the titania particles.The porous nanocomposite microspheres were detected by FTIR,SEM,TEM,XRD and UV-Vis spectrophotometry.The results indicated that the nanocomposite microspheres were composed of nanosized titania uniformly distributed on the surface,and exhibited better UV absorbing property than pure polymer microspheres or unmodified titania.Furthermore,compared with pure porous polymer microspheres,the nanocomposite microspheres showed more efficient UV protection and slow release of Parsol-1789(a photo-reactive and cosmetic agent) held inside the porous network of the microspheres. | Li Sen Wang Kuan Zhang ZhiRen Song ChunLian Cheng Jiang Yang ZhuoRu Wen XiuFang Pi PiHui | 2010 | Science China Chemistry2010，53，3： | 3 |
| 8 | α-Glucosidase immobilization on functionalized Fe_3O_4 magnetic nanoparticles for screening of enzyme inhibitors显示文摘Magnetic nanoparticles(MNPs) are widely used for the immobilization of enzyme owing to the unique properties such as good biocompatibility and rapid separation. Herein, we used Fe_3O_4 magnetic nanoparticles(Fe_3O_4 MNPs) as the carrier core with(3-aminopropyl)triethoxysilane(APTES)modification by our approach, in which a-glucosidase was stereoscopically immobilized on the surface of Fe_3O_4 MNPs via covalent binding. The result of immobilization was characterized by scanning electron microscope(SEM) and fourier transform-infrared spectroscopy(FT-IR). Then we optimized some key parameters of the immobilization reaction, including the ratio of MNPs to enzyme, GA concentration,crosslinking time and immobilization time. Moreover, under the optimal conditions, pH tolerance,thermo stability and reusability of the immobilized enzyme were investigated and compared with the free one. In order to evaluate the change of the affinity of the enzyme to its specific substrate after immobilization, the Michaelis-Menten constant(K_m) was also studied. Finally, the immobilized α-glucosidase combining with high performance liquid chromatography-tandem mass spectrometry technique(HPLC-MS/MS) was applied to screen and identify eight inhibitors from Polygonum cuspidatum extract. These results indicated that the established method had the broad prospects for biotechnological applications. | Guorong Cheng Junpeng Xing Zifeng Pi Shu Liu Zhiqiang Liu Fengrui Song | 2019 | Chinese Chemical Letters2019，30，3： | 2 |
| 9 | Crosslinked polyurethane–epoxy hybrid emulsion with core–shell structure显示文摘 | Xiufang Wen Ruilian Mi Ying Huang Jiang Cheng Pihui Pi Zhuoru Yang | 2010 | Journal of Coatings Technology and Research2010，，3： | 2 |
| 10 | Morphologies and Superhydrophobicity of Hybrid Film Surfaces Based on Silica and Fluoropolymer显示文摘Fluoropolymer and different kinds of silica particles were used for controlling surface chemistry and morphology, respectively.A superhydrophobic surface originated from strawberry-like or quincunx-shaped composite silica particles was obtained.The dual size particles are obtained by utilizing the graft of different modified silica particles with epoxy functional group and amine functional group.This makes the surface of film form a composite interface to have irregular binary structure which plays an essential role in trapping air between the substrate surface and the liquid droplets to be necessary for high contact angle and low contact angle hysteresis.The maximum contact angle for water on the hybrid film is about 174±2°and the contact angle hysteresis is less than 2°.The surface morphologies,roughness and the wettability on the surface of films containing different structural silica particles were compared.It was shown that the hierarchical irregularly structure with a low roughness factor and high air-trapped ratio is indispensable for superhydrophobic surface. Although this structural surfaces based on composite silica particles play a vital role in governing the surface wettability,it is necessary to combine with a low surface energy to make the surface superhydrophobic. | Ailan QU Xiufang WEN Pihui PI Jiang CHENG Zhuoru YANG | 2008 | Journal of Materials Science & Technology2008，24，5： | 2 |
| 11 | Tacrine-6-Ferulic Acid,a Novel Multifunctional Dimer,Inhibits Amyloid-b-Mediated Alzheimer's Disease-Associated Pathogenesis In Vitro and In Vivo显示文摘 | Rongbiao Pi X M Xiaojuan Chao Zhiyi Cheng Mengfei Liu Xiaolu Duan Mingzhong Ye X C Zhengrong Mei Peiqing Liu Wenming Li Yifan Han | 2012 | PLo S ONE2012，7，2： | 1 |
| 12 | Retarding Mechanism of Phosp- horus Slag on Cement显示文摘 | Cheng L Sheng G H Pi Y L | 2005 | Cement2005，12，4： | 1 |
| 13 | Phase Evolution of Aluminum-Chromium-Phosphate Binders during HeatTreatmen显示文摘 | Chao Zou Dai Hai Zhang YiLi Wen Jian Wang Kui Cheng Chen Lu Song Gao Ling Zhao Pi Yi Du Ge ShenJian Xun Wang Gao Rong Han | | 0，，： | 1 |
| 14 | Sur- face- Wave Dispersion Measurements Using Hilbert - Huang Transform 显示文摘 | Chau - Huei Chen Cheng - Piing Li Ta - Liang Teng | 2002 | Terrestrial Atmospheric and Ocean Sciences2002，13，2： | 1 |
| 15 | Fluid-structure- interaction for a steel plate subjected to non-contact explosion 显示文摘 | Pi S J Cheng D S Cheng H L | 2012 | Theoretical and Applied Fracture Me- chanics2012，59，： | 1 |
| 16 | Kinetic Studies on the Irreversible Inhibition of Restriction Endonuclease Pst I by Site-Specific Inhibitors显示文摘The irreversible modifying effects on Pst I of several inhibitors have been studied with the irreversible inhibition kinetic theory of single substrate reaction provided by Tsou,C.L. Pyridoxal phosphate (PLP), p chloromercuribenzoic acid (PCMB),diisopropyl fluorophosphate (DFP), 2,3 diacetyl (DAC) and N ethyl 5 phenylisoxazoliun 3’ sulfonate (woodward’s reagent K, WRK) modify the lysine, cysine, serteine, arginine and carboxyl groups of the protein molecule respectively. These five inhibitors have been found to inhibit both the prime activity and star activity of Pst I. Used with the irreversible inhibition theory, the apparent inhibition rate constant, A and the microcosmic inhibition rate constants, k +0 and k′ +0 of every inhibitor were calculated. We also found that their inhibition effects belong to the noncompetitive irreversible inhibition. Results show that among the groups to be modified, some have nothing to do with the combination with the substrate, and some may have, but any of them isn’t the only factor involved in the specific binding. Despite all this, they may take part in the catalysis of enzyme or have important effects on maintaining the active structure of enzyme molecules. Furthermore, serine and arginine residues are related to the alteration of Pst I conformation and then influence the ability of Pst I recognizing and incising DNA specifically. | Zou Guo lin, Gao Cheng zhuo, Pi Xin chun College of Life Sciences, Wuhan University, Wuhan 430072, China | 2001 | Wuhan University Journal of Natural Sciences2001，6，4： | 1 |
| 17 | Comparative study of lipid extraction from microalgae by organic solvent and supereritieal CO2 显示文摘 | Cheng C H Du T B Pi H C | 2011 | Bioresource Technology2011，102，10： | 1 |
| 18 | Periglaucines A- D, anti-HBV and-HIV-1 alkaloids from Pericampylus glaucus 显示文摘 | Yan Menghong Cheng Pi Jiang Zhiyong | 2008 | J Nat Prod2008，71，5： | 1 |
| 19 | Formation of CuS pineal microspheres via a pyridine-solvothermal process显示文摘 | Hanzhong Ke Wei Luo Guo’e Cheng Xike Tian Zhenbang Pi | 2010 | Journal of Wuhan University of Technology - Mater Sci Ed2010，，3： | 1 |
| 20 | Structural speculation and identification of alkaloids in Macleaya cordata fruits by high-performance liquid chromatography/quadrupoletime-of-flight mass spectrometry combined with a sceening procedure显示文摘 | Qing ZX Cheng Pi Liu XB | 2014 | Rapid Commun Mass Spetrom2014，28，9： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员