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| 1 | Research on KOH/La-Ba-Al_2O_3 catalysts for biodiesel production via transesterification from microalgae oil显示文摘Alumina supports modified by lanthanum(La)and barium(Ba)were prepared by peptization.Catalysts with different KOH contents supported on modified alumina were prepared by impregnation method.Various techniques,including N2 adsorption-desorption(Brunauer-Emmet-Teller method,BET),X-ray diffraction(XRD),scanning electron microscopy(SEM),and fourier transform infrared absorption spectroscopy(FT-IR). Catalytic activity for microalgae oil conversion to methyl ester via transesterification was evaluated and analyzed by GC-MS and GC.BET results showed that the support possessed high specific surface area,suitable pore volume and pore size distribution.Activity results indicated that the catalyst with 25 wt%KOH showed the best activity for microalgae oil conversion.XRD and SEM results revealed that Al-O-K compound was the active phase for microalgae oil conversion.The agglomeration and changing of pore structure should be the main reasons for the catalyst deactivation when KOH content was higher than 30 wt%. | Xiaoyu Zhang Qing Ma Bibo Cheng Jun Wang Jinshan Li Fude Nie | 2012 | Journal of Natural Gas Chemistry2012,21,6: | 7 |
| 2 | Effects of inorganic arsenic on growth and microcystin production of a Microcystis strain isolated from an algal bloom in Dianchi Lake,China显示文摘Our previous data have shown that inorganic arsenic concentrations were high in Dianchi Lake,China,where Microcystis blooms often occur.To explore the relationship between arsenic and the growth of Microcystis,the effects of arsenite[As(III)]and arsenate[As(V)]on the growth and toxin production of M.aeruginosa strain FACHB 905 were tested.Results showed that M.aeruginosa FACHB 905 was tolerant to inorganic arsenic and its growth was not inhibited when the concentration of As(III)was below 10-5 mol L-1 or that of As(V)below 10-3 mol L-1.Total microcystin production was stimulated in the presence of 10-7 mol L-1 As(III)and the response of this M.aeruginosa strain to As(III)seemed to be a typical inverted U-shaped hormesis.The content increase of microcystin-LR per cell indicated that the toxicity was enhanced as M.aeruginosa FACHB 905 was exposed to As(V).Considering the relatively high concentration of inorganic arsenic in Dianchi Lake(139μg L-1 in epilimnetic water),the origin of the M.aeruginosa strain,inorganic arsenic favors survival of M.aeruginosa FACHB 905 and may stimulate its microcystin production and cellular toxicity. | GONG Yan AO HongYi LIU BiBo WEN Sheng WANG Zhi HU DingJing ZHANG XingZhong SONG LiRong LIU JianTong | 2011 | Chinese Science Bulletin2011,56,22: | 6 |
| 3 | A mesoscale model based on Monte-Carlo method for concrete fracture behavior study显示文摘An aggregate generation and packing algorithm based on Monte-Carlo method is developed to express the aggregate random distribution in cement concrete. A mesoscale model is proposed on the basis of the algorithm. In this model, the concrete consists of three parts, namely coarse aggregate, cement matrix and the interfacial transition zone (ITZ) between them. To verify the proposed model, a three-point bending beam test was performed and a series of two-dimensional mesoscale concrete models were generated for crack behavior investigation. The results indicate that the numerical model proposed in this study is helpful in modeling crack behavior of concrete, and that treating concrete as heterogeneous material is very important in fracture modeling. | ZHANG NaiLong GUO XiaoMing ZHU BiBo GUO Li | 2012 | Science China(Technological Sciences)2012,55,12: | 4 |
| 4 | SARS-CoV-2 non-structural protein 13 (nspl3) hijacks host deubiquitinase USP13 and counteracts host antiviral immune response显示文摘Dear Editor,COVID-19(Coronavirus Disease-2019),a respiratory disease caused by the novel virus strain,SARS-CoV-2(severe acute respiratory syndrome coronavirus 2),an enveloped,positive-sense,single-stranded RNA betacoronavirus of the family Corona-viridae,has spread worldwide.1 Notably,SARS-CoV-2 infection led to poor induction of typeⅠ interferon response,and the impaired type Ⅰ IFN responses have been shown to be associated with severe COVID-19 disease.2 However,molecular mechanisms by which SARS-CoV-2 suppresses type Ⅰ IFN production,and how host cells respond to the inhibition of type Ⅰ IFN response during SARS-CoV-2 infection,remain largely unknown. | Guijie Guo Ming Gao Xiaochen Gao Bibo Zhu Jinzhou Huang Kuntian Luo Yong Zhang Jie Sun Min Deng Zhenkun Lou | 2021 | Signal Transduction and Targeted Therapy2021,6,4: | 2 |
| 5 | Earth Gravity Field Recovered from CHAMP Science Orbit and Accelerometer Data显示文摘The earth gravity field model CDS01S of degree and order 36 has been recovered from the post processed Science Orbits and on-board accelerometer data of GFZ’s CHAMP satellite. The model resolves the geoid with an accuracy of better than 4 cm at a resolution of 700 km half-wavelength. By using the degree difference variances of geopotential coefficients to compare the model CDS01S with EIGEN3P, EIGEN1S and EGM96, the result indicates that the coefficients of CDS01S are most close to those of EIGEN3P. The result of the comparison between the accuracies of geopotential coefficients in the above models, indicates that the accuracy of coefficients in CDS01S is higher than that in EGM96.The geoid undulations of CDS01S and GGM01C up to 30 degrees are calculated and the standard deviation is 4.7 cm between them. | ZHOU Xuhua WU Bin PENG Bibo XU Houze | 2006 | Geo-Spatial Information Science2006,9,4: | 2 |
| 6 | Microstructure evolution,mechanical properties and creep mechanisms of Mg-12Gd-1MM-0.6Zr(wt%)magnesium alloy显示文摘In this research,the microstructure evolution,mechanical properties,and creep mechanisms of Mg-12 Gd-1 MM-0.6 Zr(wt%)alloy under different conditions were systematically studied using scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray diffraction(XRD),and tensile creep tests.Regarding the microstructure of the as-cast sample,the average grain size is about 42μm,and the eutectic compounds were determined to be Mg_(5)(Gd_(0.8)MM_(0.2)).During homogenization,these eutectic compounds gradually dissolve,and Mg_(12)MM particles are precipitated.During hot extrusion,complete dynamic recrystallization(DRX)occurs,resulting in equiaxial grains with an average grain size of about 12μm and the formation of streamlines consisting of Mg_(12)MM particles along the extrusion direction(ED).After T5 treatment(225℃for 7 h),a large number ofβ'(Mg_(7)Gd)phases are precipitated on the{11-20}αhabit plane and are interconnected,forming an interlaced network structure.The ultimate tensile strength(R_(m)=405 MPa)and yield strength(R_(P0.2)=288 MPa)of the T5 sample are significantly higher than those of the as-extruded sample(R_(m)=289 MPa,R_(P0.2)=185 MPa),but the elongation(A=4%)was remarkably lower than that of the as-extruded sample(A=18%).When crept at225℃under 100 MPa,the steady-state creep rates of the as-cast,as-extruded,and T5 samples are1.59×10^(-8),1.08×10^(-8),and 1.40×10^(-8)s^(-1),respectively,and their total strains within 100 h are respectively breaking,0.81%,and 0.92%,indicating that the as-extruded alloy exhibits the best creep resistance.TEM analysis reveals that,during the creep process of the T5 sample,theβ'particles coarsen and the precipitate-free zones(PFZs)widen,which increase the steady-state creep rate and the total strain within 100 h as compared with the as-extruded sample. | Bibo Li Kui Zhang Guoliang Shi Kaikun Wang Yongjun Li Xinggang Li Minglong Ma Jiawei Yuan | 2021 | Journal of Rare Earths2021,39,5: | 2 |
| 7 | Programmed death‐1/B7‐H1 negative costimulation protects mouse liver against ischemia and reperfusion injury显示文摘 | Haofeng Ji Xiuda Shen Feng Gao Bibo Ke Maria Cecilia S. Freitas Yoichiro Uchida Ronald W. Busuttil Yuan Zhai Jerzy W. Kupiec‐Weglinski | 2010 | Hepatology2010,,4: | 1 |
| 8 | Carbon-fibre non-crimp fabric laminates for cost-effective damage-tolerant structures显示文摘 | G.A Bibo P.J Hogg R Backhouse A Mills | 1998 | Composites Science and Technology1998,,1: | 1 |
| 9 | STAT4 and STAT6 signaling in hepatic ischemia/repeffusion injury in mice: HO-1 dependence of STAT4 disruption-mediated cytoprotection显示文摘 | Shen XD Bibo K Zhai Y | 2003 | Hepatology2003,37,2: | 1 |
| 10 | Vascular Endothelial Growth Factor Antagonist Modulates Leukocyte Trafficking and Protects Mouse Livers against Ischemia/Reperfusion Injury显示文摘 | Sei-ichiro Tsuchihashi Bibo Ke Fady Kaldas | 2006 | American Journal of Pathology2006,168,: | 1 |
| 11 | A laboratory study on risk assess- ment of microcystin - RR in cropland 显示文摘 | Bibo L Yah G Bangding X | 2008 | Journal of Environment Management2008,86,: | 1 |
| 12 | Heme oxygenase - 1 overexpression protects rat hearts from cold ischemia/reperfusion injury via an antipoptotic pathway显示文摘 | Masamichi K Roland B Bibo K | 2002 | Transplantation2002,73,2: | 1 |
| 13 | Application of atomic force microscopy in morphological observation of antisense probe labeled with magnetism显示文摘 | Ming Wen Bibo Li Wei Bai | 2008 | Molecular Vision2008,14,: | 1 |
| 14 | Effect of Cellulose Acetate Butyrate Microencapsulated Ammonium Polyphosphate on the Flame Re~cy, Mechanical, Elecmcal, and Thermal Properties of Intumescent Flame-Retardant Ethylene Vinyl Acetate Copolymer/Microencapsulated Ammonium Pol- yphosphate/Polyamide-6 Blends 显示文摘 | Wang Bibo Tang Qinbo Hong Ningning | 2011 | ACS Applied Matereri- al&Interfaces2011,3,9: | 1 |
| 15 | Template-free synthesis of homogeneous yolk–shell TiO 2 hierarchical microspheres for high performance lithium ion batteries显示文摘 | Xiaobing Wang Yuanyuan Wang Lin Yang Kui Wang Xiangdong Lou Bibo Cai | 2014 | Journal of Power Sources2014,,: | 1 |
| 16 | Identifying risk factors of urban-rural conflict in urbanization: A case of China显示文摘 | Ann T.W. Yu Yuzhe Wu Bibo Zheng Xiaoling Zhang Liyin Shen | 2014 | Habitat International2014,,: | 1 |
| 17 | Metabolic surgery: the role of the gastrointestinal tract in diabetes mellitus 显示文摘 | Rubino F R'Bibo S L del Genio F | 2010 | Nat Rev Enclocrinol2010,6,2: | 1 |
| 18 | Estimation of contribution ratios of pollutant sources to a specific section based on an enhanced water quality model显示文摘 | Cao Bibo Li Chuan Liu Yan | 2015 | Environmental Science and Pollution Research2015,22,10: | 1 |
| 19 | Determination of solid Earth tide phase lag by satellite observation data显示文摘The geopotential variation caused by solid Earth, ocean and atmospheric tides can be estimated from artificial satellite orbit perturbations. It is shown that the total tidal variation in geopotential field derived from satellite tracking data, combined with the recent accurate measurements of ocean tide obtained by Topex/Poseidon and atmospheric tide model, permits the estimates of the solid earth tide phase lags for M2 and K1 constituents (respectively 0.12°and 0.13°). This result agrees rather well with the result 0.16°derived from satellite data by Ray and the constrained theoretical result 0.21°given by Zschau; whereas the results given by gravity tidal methods are rather scattering in the phase lag determination. | Bin Wu Yaozhong Zhu Bibo Peng | 1999 | Chinese Science Bulletin1999,44,5: | 1 |
| 20 | Relationship between dynamic rheological behavior and phase separation of poly- (methyl methacrylate)/poly(styrene-co-acrylonitrile) blends显示文摘 | Zheng Qiang Du Miao Yang Bibo | 2001 | Polymer2001,42,13: | 1 |