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| 1 | Robust disturbance rejection for a fractional-order system based on equivalent-input-disturbance approach显示文摘This paper presents a disturbance rejection method that is based on the equivalent-inputdisturbance approach for uncertain fractional-order(FO) systems. An FO observer is used to reconstruct the plant states and estimate the disturbances. A disturbance estimator is incorporated in the construction of the FO control system to actively compensate for the entire disturbance. A robust stability condition for the control system and the parameters of the controller are derived using an indirect Lyapunov method.The presented method effectively rejects disturbances and handles modeling uncertainties without requiring prior knowledge of the disturbance. Comparison simulations on both numerical and practical examples demonstrate the effectiveness of the proposed method. | Ruijuan LIU Jinhua SHE Min WU Fenfang ZHU Zhuoyun NIE | 2018 | Science China(Information Sciences)2018，61，7： | 6 |
| 2 | Studies on Factors Influencing Hydrodynamic Characteristics of Plates Used in Artificial Reefs显示文摘As a simplified model of artificial reefs, a series of plate models punched with square or circular openings are designed to investigate the effects of openings on the hydrodynamic characteristics of artificial reefs. The models are grouped by various opening numbers and opening-area ratios. They are physically tested in a water flume or used in the numerical simulation to obtain the drag force in the uniform flow with different speeds. The simulation results are found in good agreement with the experimental measurements. By the non-dimensional analysis, the drag coefficient specified to each model is achieved and the effects of openings are examined. It is found that the key factor affecting the drag coefficient is the open-area ratio. Generally, the drag coefficient is a linear function of the open area ratio with a minus slope. The empirical formulae for the square and circular openings respectively are deduced by means of the multiple regression analysis based on the measured and numerical data. They will be good references for the design of new artificial reefs. As a result of numerical simulation, the vorticity contours and pressure distribution are also presented in this work to better understand the hydrodynamic characteristics of different models. | TANG Yanli YANG Wenzhao SUN Liyuan ZHAO Fenfang LONG Xiangyu WANG Gang | 2019 | Journal of Ocean University of China2019，18，1： | 6 |
| 3 | Electron Probe Microanalysis of Monazite and Its Applications to U-Th-Pb Dating of Geological Samples显示文摘Electron probe microanalysis(EPMA) dating of monazite has been developed over decades. However, limited by the detectability and analytical sensitivity of dating-related elements(Th, Pb, U and Y), the EPMA dating has been restricted to geological research. In this study, various probe currents, beam diameters and counting times have been utilized on a JEOL JXA-8230 electron microprobe to determine the optimal experimental conditions for measuring Th, Pb, U and Y in monazite. The optimal conditions are:(1) accelerating voltage is 15 k V;(2) probe current is 100 n A;(3) beam diameter is 1 μm;(4) the peak and background counting time of U and Pb are 200 and 100 s;and(5) the peak and background counting time of Th and Y are 100 and 50 s. We apply this method to monazite from garnet-bearing biotite gneiss in the Zanhuang area of the Central Orogenic Belt of the North China Craton. The Pb O-Th O2* isochron age calculated by EPMA data is 1 812±17 Ma(MSWD=2.06), which is similar to the weighted mean 207 Pb/206 Pb age(1 805±12 Ma, MSWD=1.07) obtained by LA-ICP-MS. This study suggests that EPMA dating of monazite as a powerful dating technique can be widely used in geochronological study. | Wenbin Ning Junpeng Wang Deng Xiao Fenfang Li Bo Huang Dong Fu | 2019 | Journal of Earth Science2019，30，5： | 5 |
| 4 | A Comparative Study on Hydrodynamic Performance of Double Deflector Rectangular Cambered Otter Board显示文摘In the present work,the hydrodynamic performance of the double deflector rectangular cambered otter board was studied using wind tunnel experiment,flume tank experiment and numerical simulation.Results showed that the otter board had a good hydrodynamic performance with the maximum lift-to-drag ratio(K_(MAX) = 3.70).The flow separation occurred when the angle of attack(AOA) was at 45?,which revealed that the double deflector structure of the otter board can delay the flow separation.Numerical simulation results showed a good agreement with experiment ones,and could predict the critical AOA,which showed that it can be used to study the hydrodynamic performance of the otter board with the advantage of flow visualization.However,the drag coefficient in flume tank was much higher than that in wind tunnel,which resulted in a lower lift-to-drag ratio.These may be due to different fluid media between flume tank and wind tunnel,which result in the big difference of the vortexes around the otter board.Given the otter boards are operated in water,it was suggested to apply both flume tank experiment and numerical simulation to study the hydrodynamic performance of otter board. | XU Qingchang FENG Chunlei HUANG Liuyi XU Jiqiang WANG Lei ZHANG Xun LIANG Zhenlin TANG Yanli ZHAO Fenfang WANG Xinxin | 2018 | Journal of Ocean University of China2018，17，5： | 5 |
| 5 | Tribological Performance of Two Potential Environmentally Friendly Ashless Vegetable Oil Additives显示文摘二潜在的新奇环境地友好的无灰的蔬菜油添加剂, 2-mercaptobenzothiazole 衍生物,di-n-dodecyl-[2-( 2-benzothiazolyl ) thio ] ethylborane ( LBN )和di-n-dodecylthio-[2-( 2-benzothiazolyl ) thio ] ethylborane ( LBNS ),被综合,他们在油菜籽的添加剂上油的 tribological 表演( RSO )被评估用一四球穿测试者。他们的防腐蚀的性质和热稳定性也被检验。钢球的穿的表面借助于扫描电子显微镜学(SEM ) 和 X 光检查光电子光谱学(XPS ) 被分析。结果证明 2-mercaptobenzothiazole 衍生物展出了优秀防腐蚀的性质和高热的稳定性。而且,他们有的好带负担的能力和减少磨擦的性质。样品的 PB 价值在下列顺序减少了:LBNS > LBN > RSO。说明的 XPS 检查的结果准备混合物的优秀 tribological 行为在 RSO 用作添加剂,这在穿的表面上被归因于一部保护的润滑油电影的形成,它由吸附层和包含 Fe3O4 的反应层组成了, FeS , Fe2 ( SO4 ) 3 ,2月,和器官的包含氮的混合物。 | You Jianwei Li Fenfang Chen Boshui | 2010 | China Petroleum Processing & Petrochemical Technology2010，12，1： | 3 |
| 6 | Effects of the recombinant toxin protein rLj-RGD3 in multidrug-resistant human breast carcinoma cells显示文摘我们以前报导了那 Lj-RGD3,新奇 RGD 毒素蛋白质,从 Lampetra 的口腔的腺被孤立装饰用的梨树。recombinant 蛋白质 rLj-RGD3 有反侵略并且在肿瘤房间(HeLa 房间) 和在 vitro 的 endothelial 房间(ECV304 房间) 的反粘合剂活动,并且禁止 v3, v5,和 1 调停 integrin 的粘附。在这研究,我们在药抵抗的 MCF-7/Adr 胸癌细胞线和药敏感的父母线 MCF-7 调查了 rLj-RGD3 的 bioactivity,并且发现 rLj-RGD3 禁止了两根细胞线的生长。生物功能研究表明 rLj-RGD3 能在 MCF-7/Adr 导致 apoptosis,它在药敏感的父母线 MCF-7 是比那更流行的。另外, rLj-RGD3 禁止了 MCF-7/Adr 房间的粘附到 fibronectin。而且, rLj-RGD3 通过人工的 matrigel 地下室膜阻止了 MCF-7/Adr 房间的侵略。在摘要, rLj-RGD3 可以在 multidrug 抵抗的乳癌治疗被用作潜在的药。 | Jihong Wang Rong Xiao Xin Liu Fenfang Wu Yue Pang Bo Feng Donghui Yang Qingwei Li | 2012 | Acta Biochimica et Biophysica Sinica2012，44，5： | 3 |
| 7 | Cardiomyocytes induced from hiPSCs by well-defined compounds have therapeutic potential in heart failure by secreting PDGF-BB显示文摘Recent studies have suggested that transplant of hiPS-CMs is a promising approach for treating heart failure.However,the optimally clinical benefits have been hampered by the immature nature of the hiPS-CMs,and the hiPS-CMs-secreted proteins contributing to the repair of cardiomyocytes remain largely unidentified.Here,we established a saponin+compound optimally induced system to generate hiPS-CMs with stable functional attributes in vitro and transplanted in heart failure mice.Our study showed enhanced therapeutic effects of optimally induced hiPS-CMs by attenuating cardiac remodeling and dysfunction,these beneficial effects were concomitant with reduced cardiomyocytes death and increased angiogenesis.Moreover,the optimally induced hiPS-CMs could gathering to the injured heart and secret an abundant PDGF-BB.The reparative effect of the optimally induced hiPS-CMs in the hypoxia-injured HCMs was mimicked by PDGF-BB but inhibited by PDGF-BB neutralizing antibody,which was accompanied by the changed expression of p-PI3K and p-Akt proteins.It is highly possible that the PI3K/Akt pathway is regulated by the PDGF-BB secreted from the compound induced hiPS-CMs to achieve a longer lasting myocardial repair effect compared with the standard induced hiPS-CMs.Taken together,our data strongly implicate that the compound induced hiPS-CMs promote the recovery of injured hearts via paracrine action.In this process,the paracrine factor PDGF-BB derived from the compound induced hiPS-CMs reduces isoproterenol-induced adverse cardiac remodeling,which is associated with improved cardiac function,and these effects are mediated by the PI3K/Akt pathway,suggesting that the optimally induced hiPS-CMs may serve as a new promising cell therapy for clinical applications. | Hongmei Li Fenfang Wu Guangrui Huang Di Wu Ting Wang Xiashuang Wang Kai Wang Yuyin Feng Anlong Xu | 2022 | Signal Transduction and Targeted Therapy2022，7，8： | 2 |
| 8 | Preparation and charac- terization of chiral polyaniline/barium hexaferrite composite with enhanced microwave absorbing properties显示文摘 | Xu Fenfang Ma Li Gan Mengyu | 2014 | J Alloys Compd2014，593，： | 1 |
| 9 | Formation of flower-like aggregates from assembly of single polystyrene-b-poly (acrylic acid) rnicelles显示文摘 | Linqi Shi Wangqing Zhang Fenfang Yin | 2004 | New J Chem2004，28，： | 1 |
| 10 | Preparation and characterization of chiral polyaniline/barium hexaferrite composite with enhanced microwave absorbing properties 显示文摘 | Xu Fenfang Ma Li Gan Mengyu | 2014 | Journal of Alloys and Compounds2014，593，： | 1 |
| 11 | The perform ance and antiwear mechanism of(2 -sullurone benzothiazole) 3 methyl esters as additives in synthetic lubricant显示文摘 | Weijiu Huang Junxiu Dong Fenfang Li | 2000 | Tribol ogy International2000，33，： | 1 |
| 12 | Mineral Chemistry of Biotite and Its Petrogenesis Implications in ca.2.5 Ga Wangjiazhuang Granitic Pluton,North China Craton显示文摘The Wangjiazhuang granitic pluton is located in the central Zanhuang Domain,the central part of the North China Craton,which is mainly composed of biotite monzogranite with few mafic microgranular enclaves.Biotite is an important ferromagnesian mineral in most of the intermediatefelsic igneous rocks,and its mineral chemistry can record the properties of magma and the petrogenetic physicochemical conditions.In this study,we carried out a detailed petrographic study by electric probe microanalysis on biotite for the biotite monzogranite and mafic microgranular enclaves,to discuss the source,physicochemical conditions,and the magma mingling/mixing processes of the Wangjiazhuang granite.The results show significantly different chemical compositions from the biotite monzogranite and mafic microgranular enclaves.The crystallization of these biotite grains from the biotite monzogranite and mafic microgranular enclaves all occurred in low oxygen fugacity.The biotite grains in biotite monzogranite are rich in Fe,poor in Mg,which belong to siderophyllite.The ratios of[(Fe^(3+)+Fe^(2+))/(Fe^(3+)+Fe^(2+)+Mg2+)]are between 0.78 and 0.86.The average of FeOT(total FeO)/MgO of biotite grains in biotite monzogranite is 9.02.The MF values[2×Mg/(Fe^(2+)+Mg+Mn)]of biotite monzogranite are between 0.31 and 0.47,suggesting biotite monzogranite derived from crustal source rocks(metasedimentary rocks).The formation of granitic rocks including the Wangjiazhuang granite was related to the subduction event at ca.2.5 Ga which resulted in the melting event,and then induced the early partial melting of TTGs and metasedimentary rocks.The biotite in mafic microgranular enclaves varies from siderophyllite to ferrobiotite,and MF values range from 0.63 to 1.06,suggesting that magma of mafic microgranular enclaves had experienced magma mixing/mingling in various degrees.Biotite monzogranite and parts of mafic microgranular enclaves have a similar crystallized condition,while other mafic microgranular enclaves are different from biotite monzogranite.The differences between biotite monzogranite and mafic microgranular enclaves may be a consequence of continuous interaction between granitic and mafic magmas. | Junpeng Wang Kang Jiang Deng Xiao Fenfang Li Fupeng Li Xiaofeng Li Song Jin Guanghuo Tao | 2022 | Journal of Earth Science2022，33，6： | 1 |
| 13 | Preparation of Lung Targeting Microspheres of Gelatin Ceftiofur Alkali显示文摘Gelatin ceftiofur alkali microsphere was prepared to observe its characteristics and evaluate preservation conditions. The glutaraldehyde was increased and the carboxylic methyl chitosan was added to improve the microsphere. The experimental results show microspheres have a better morphology surface and fairly regular structure with 4% glutaraldehyde. The average particle size is 15.84 μm and particle size distribution is narrow which shows a good uniformity. Microsphere size was affected by the stirrer speed, dosing ratio and curing degree. The greater drug loaded is, the better microspheres loading is; but with the increase of drug loading rate, the entrapment efficiency increases first and then decreases. The drug release rate of the microsphere is 24.90% in 0.5 h and 84.90% in 48 h, when CMC-GMs with 4% curing agent is 32.03% in 0.5 h and 88.44% in 48 h. So Gms embedding of ceftiofur alkali are better than CMC-GM. The stability tests show that strong light, high temperature, high humidity have a great influence on the microspheres. | 郝智慧 ZHAO Yongda 曲宝涵 WU Haoting HAO Lihua DING Zhaopeng YANG Fenfang | 2013 | Journal of Wuhan University of Technology(Materials Science)2013，28，2： | 1 |
| 14 | Synthesis of Two Novel Additives and Study of Their Tribological Properties in Rapeseed Oil显示文摘二新奇的灰更少添加剂 - benzothiazole 衍生物包含硼和氯, OBC 和 BBC,被综合。在在油菜籽的添加剂上油的不同集体比率(RO ) 的 OBC 和 BBC 的 tribological 表演在一台四球的机器上被检验。油样品润滑的更低的钢球的穿的表面借助于扫描电子显微镜学(SEM ) 被分析。测试结果显示出那 OBC, BBC 在底有好溶解度上油,并且能有效地增加基础油的带负担的能力。包含 1.5 m% BBC 的油样品的最大的非抓住负担是 1117 N,它 2.3 倍于基础油的。OBC 和 BBC 能改进禁止性能和基础油的热稳定性的反穿和腐蚀,谁的起始的分解温度在 350 ° C 上面。然而,在不同集中的 OBC 和 BBC 能增加基础油的磨擦系数。油润滑的钢球的 SEM 形态学取样包含 1.5 m% 添加剂似乎比形成的基础油,和疤的更一致、光滑是很浅的。 | Zhou Maolin Li Fenfang Zeng Xiaojun Fan Chengkai | 2007 | China Petroleum Processing & Petrochemical Technology2007，9，3： | 1 |
| 15 | Study of the tribologi-cal behavior of S-(carboxylpropyl)-N-dialkyl dithiocarbamicacid as additives in water-based fluid显示文摘 | Huang Weijiu Dong Junxiu Li Fenfang | 2002 | Wear2002，252，34： | 1 |
| 16 | Mechanism of the enhanced degradation of pentachloro phenol byultrasound in the presence of elemental iron显示文摘 | Dai Youzhi Li Fenfang Ge Fei | 2006 | Journal of Hazardous Materials2006，137，： | 1 |
| 17 | A novel BTK-like protein involved in immune response in Lethenteron japonicum显示文摘 | Fenfang Wu Jing Zhao Liyong Chen Xin Liu Peng Su Yinglun Han Bo Feng Qingwei Li | 2012 | Immunology Letters (-)2012，，1： | 1 |
| 18 | Methicillin-resistant Staphylococus aureus,Hwwaii,2000~2002显示文摘 | Li Fenfang Sarah Y Park Tracy L Ayers | 2005 | Emerg lnfect Dis2005，11，8： | 1 |
| 19 | Influence of EDTA washing on the species and mobility of heavy metals residual in soils显示文摘 | Weihua Zhang Hao Huang Fenfang Tan Hong Wang Rongliang Qiu | 2009 | Journal of Hazardous Materials2009，，1： | 1 |
| 20 | Initial exploration of tribological performance of novel triazine derivatives in water显示文摘 | Sheng Liping Li Fenfang Fan Chengkai | 2009 | Lubrication Science2009，21，： | 1 |
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