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14篇 您的检索式:作者名="Xing Yushan"
    题名 作者 年代 出处 被引量
1SURFACE METALLIZATION OF CENOSPHERES AND PRECIPITATORS BY ELECTROLESS PLATING显示文摘This paper reports the use of a colloidal Pd0 catalysis system to metallize the surface of precipitators separated from coal fly-ash, and metals such as Cu, Ni etc. are deposited on the precipitators surface. Alternatively, according to the characteristic surface of cenospheres, an Ag coating catalysis system is adopted to first deposit Ag on the cenospheres surface, followed, if necessary, by the deposition of other metals such as Cu, Ni, etc. on the Ag coating to produce monolayer and multilayer metal-coated cenospheres. The surface characteristics and the morphologies of the metal coatings are examined in detail with scanning electron microscopy (SEM), energy dispersive spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS) techniques. It can be shown that the quality of metal coatings derived from the Ag coating catalysis system, is better than that of the colloidal Pd0 catalysis system.Chujiang Cai, Zhigang Shen*, Mingzhu Wang, Shulin Ma and Yushan Xing Beijing Key Laboratory for Powder Technology Research and Development, Beijing University of Aeronautics and Astronautics, Beijing 100083, P. R. China 2003China Particuology2003,1,4:5
2Modification of ADP extinguishing powder by siliconization in spray drying显示文摘Superfine spherical fire-extinguishing powder,ammonium dihydrogen phosphate(ADP,NH4H2PO4),was prepared by spray drying and modified in situ with methyl hydrogen silicone oil(MHSO)emulsion and the fluorinated surfactant FK-510.The influences of the MHSO mass ratio on the hydrophobicity,surface composition,surface morphology,dispersion and particle-size distribution of the NH4H2PO4 were studied,and the influence of the drying air temperature on the decomposition of the NH4H2PO4 was also researched.The results indicate that the MHSO and FK-510 congregate on the particle surfaces and then form a hydrophobic shell.This shell improves the particle hydrophobicity and leads to a fine dispersion of the particles.During the process of preparing the precursor solution,3 wt%(based on the weight of NH4H2PO4)was chosen as the optimum value of the MHSO mass ratio.During the spray drying,a low absolute humidity of the air should be maintained,and it is very important to keep the exit-air temperature below 100°C to avoid decomposition.Xiaojing Zhang ZhigangShen Chujiang Cai Xiaozheng Yu Jun Du Yushan Xing Shulin Ma 2012Particuology2012,10,4:2
3Quantitative trait loci for panicle size, heading date and plant height co-segregating in trait-performance derived near-isogenic lines of rice ( Oryza sativa )显示文摘Yushan Zhang Lijun Luo Caiguo Xu Qifa Zhang Yongzhong Xing 2006Theoretical and Applied Genetics2006,,2:1
4A study of the reaction characteristics and mechanism of Kapton in a plasma-type ground-based atomic oxygen effects simulation facility显示文摘Zhao Xiaohu Shen Zhigang Xing Yushan 2001J Phys D:Appl Phys2001,34,15:1
5Four rice QTL controlling number of spikelets per panicle expressed the characteristics of single Mendelian gene in near isogenic backgrounds显示文摘Yushan Zhang Lijun Luo Touming Liu Caiguo Xu Yongzhong Xing 2009Theoretical and Applied Genetics2009,,6:1
6Quantitative trait loci for panicle size, heading date and plant height co-segregating in trait-performance derived near-isogenic lines of rice (Oryza sativa)显示文摘Yushan Zhang Lijun Luo Caiguo Xu Qifa Zhang Yongzhong Xing 2006Theoretical and Applied Genetics2006,,2:1
7Experimental investigations of polypropylene and poly (vinyl chloride) composites filled with plerospheres显示文摘Wang Mingzhu Shen Zhigang Cai Chujiang Ma Shulin Xing Yushan 2004Journal of Applied Polymer Science2004,92,4:1
8Molecular dissection of genetic basis of significant correlation among five morphological traits in rice(Oryza sativa L.)显示文摘To enhance understanding of the genetic basis of trait correlation in rice,a recombinant inbred line(RIL)population(F6 and F7) from a cross between Zhenshan97 and HR5 was employed to identify main quantitative trait loci(QTLs)and epistatic QTL(E-QTL).Highly significant positive correlations were detected among five traits of heading date(HD),plant height(PH),panicle length(PL),flag leaf length(FLL)and flag leaf width(FLW)in 2 environments.Four to 8 main QTLs were detected for an individual trait.No E-QTL was detected for PH.One,4,4 and 5 E-QTLs were detected for FLL,HD,FLW and PL,respectively.Each E-QTL individually explained less than 3%of trait variation except E-QFll1.Comparison of QTL results was made in order to dissect the genetic basis of trait correlation.We found that main QTLs with pleiotropic effects and QTL clusters were the main genetic basis of trait correlation.No E-QTL had pleiotropic effects.E-QTL played an important role in the genetic basis of individual trait,but it made a little contribution to trait correlation.ZHANG YuShan WANG JianBo XU CaiGuo XING YongZhong 2010Chinese Science Bulletin2010,55,27:1
9Effects of plerospheres on the atomic oxygen resistance of a phenolic resin composite显示文摘Mingzhu Wang Xiaohu Zhao Zhigang Shen Shulin Ma Yushan Xing 2004Polymer Degradation and Stability2004,,3:1
10Four rice QTL controlling number of spikelets per panicle expressed the characteristics of single Mendelian gene in near isogenic backgrounds显示文摘Yushan Zhang Lijun Luo Touming Liu Caiguo Xu Yongzhong Xing 2009Theoretical and Applied Genetics2009,,6:1
11Effects of electroacupuncture combined with hydrogel on the formation and changes in the glial scar in rats with spinal cord injury显示文摘Objective: To observe the effect of electroacupuncture(EA) combined with oriented conductive bioprotein hydrogel(OCBH) on the recovery of nerve function in rats with complete spinal cord injury(SCI)and to explore its effect and mechanism on the formation and changes of glial scars.Methods: A total of 72 female Sprague-Dawley rats were randomly divided into groups according to the treatment received. A rat model of complete SCI was constructed using a spinal cord transection.Behavioral assessments, hematoxylin-eosin(H&E) staining, immunofluorescence staining, and Western blotting were performed at a fixed period after the operation.Results: The material group and the material + EA group obtained better results in the behavioral assessments(all P <.05) and the H&E staining. In the immunofluorescence staining and Western blotting,the GFAP protein was expressed more and denser in the material group and the material + EA group than in the model group, and the density of the GFAP expression in the material + EA group was lower at week 12 than in the material group(all P <.05). The expression of complement C3 in the model, material,and material + EA groups decreased in turn. Some inflammatory factors and the NF-κB signaling pathway showed similar results in the Western blotting(all P <.05). The expression of the GDNF protein in the material + EA group was significantly higher than that in the model group and the material group(both P <.01).Conclusion: EA combined with OCBH can promote the recovery of motor functions after SCI by facilitating the formation of glial scars in the early stage, preventing the further spread of an inflammatory response that would affect the activation of A1/A2 astrocytes and change the morphology of glial scars at the spinal cord-material interface in its late stage.Kaitan Yang Yushan Gao Yongdong Yang Chuanhong Li Zheng Cao Xiumei Wang Zaibo Li Xing Yu 2022Journal of Traditional Chinese Medical Sciences2022,9,2:0
12Circular patterns of calcium oxalate crystals induced by defective Langmuir-Blodgett film显示文摘The injury of the renal epithelial cell membrane can promote the nucleation of nascent crystals, as well as adhesion of crystals on it. It thus accelerates the formation of renal calculi. In this paper, the defective Langmuir-Blodgett (LB) films were used as a model system to simulate the injured renal epithelial cell membrane. The microcosmic structure of the defective LB film and the molecular mechanism of the effect of this film on nucleation, growth, deposited patterns and adhesion of calcium oxalate monohydrate (COM) were investigated. The circular defective domains were formed in dipalmitoylphosphatidylcholine (DPPC) LB film after the film was treated by potassium oxalate. These domains could induce ring-shaped patterns of COM crystals. In comparison, the LB film without pretreatment by potassium oxalate only induced random growth of hexagonal COM crystals. As the crystallization time increased, the size of COM crystals in the patterns increased, the crystal patterns changed from empty circles to solid circles, and the number of the circular patterns with small size (5-20 μm) increased. The results would shed light on the molecular mechanism of urolithiasis induced by injury of the renal epithelial membrane at the molecular and supramolecular level.DENG SuiPing OUYANG JianMing XIE YuShan XING FeiYue 2008Science China Chemistry2008,51,1:0
13Experimental study on a designed jet cavitation device for producing two-dimensional nanosheets显示文摘In this study,a jet cavitation device aimed at producing two-dimensional nanosheets was designed.The effects of cavitation generator type and jet pressure on the cavitation inception and intensity were examined by monitoring the changes of sound pressure level(SPL).As such,the optimized cavitation generator with the best cavitation capability under the same ambient condition was determined.Further,BN and MoS 2,two kinds of layered materials,were exfoliated into individual flakes in aqueous solutions by this jet cavitation device.By investigating the morphology of these exfoliated flakes via scanning electron microscopy and transmission electron microscope,it was found that these pristine materials were mostly exfoliated into two-dimensional nanosheets,among which even monolayers were generally presented.This exfoliation process happened mainly due to the cavitation-induced intensive tensile stress acting on the layered materials.As graphene has been produced by this device successfully,it is anticipated that this jet cavitation device is suitable for producing other various two-dimensional nanosheets.LI JinZhi YI Min SHEN ZhiGang MA ShuLin ZHANG XiaoJing XING YuShan 2012Science China(Technological Sciences)2012,55,10:0
14Induction of protective antitumor activity of tumor lysate-pulsed dendritic cells vaccine in RM-1 prostate cancer model显示文摘Objective: To investigate the antitumor activity of tumor lysate-pulsed dendritic cells vaccine in RM-1 prostate cancer mice model with the survival time of mice calculated and the tumor size measured in DC vaccine therapy. Methods: C57BL/6 mice were immunized on the dorsal flank by s.c. inoculation of Lysate-DC, ova-DC, and non-DC on day -7. On day 0, 2×106cells of RM-1 tumor cells (H-2b) were injected s.c. in C57BL/6 mice pre-treated by s.c. inoculation of modified DCs, correspondingly. DTH assay was performed with modified DCs. In partial test, for the determination of which immune cells were required for antitumor activity, mice were immunodepleted of CD4, CD8, or natural killer (NK) NK1.1 cells with the corresponding monoclonal antibodies. The survival time of nude mice loaded with tumor cells was calculated and the size of tumor measured. Results: In RM-1 mice prostate cancer model, immunized with lysate-DC, compared with ova-DC and non-DC, the pre-infection vaccine resulted in 100% clearance of primary tumors, whereas on day 0 of injection vaccine cleared 40-60% of primary tumors. On day 0, C57BL/6 mice (H-2b) were immunized with Lysate-DC, compared with ova-DC and non-DC by caudal vein injection, then on day 15, RM-1 cells were inoculated. On day 30, average diameters of tumor in different groups of modified DC were 23.7±5.4 mm, 22.1±4.9 mm, 4.3±2.6 mm, respectively. Lysate-DC, compared with ova-DC and non-DC, can greatly depressed RM-1 tumor cell growth (P<0.01). The mean survival time of C57BL/6 mice in Lysate-DC, ova-DC and non-DC groups were 15.8±2.6, 16.6±3.2, 39.0±5.6, respectively, and there was a significant difference in the mean survival time in lysate-DC group between ova-DC and non-DC group (P<0.01). DTH test showed that lysate-DC could prime T lymphocyte and elicit tumor antigen specific immune response, and over 80% mice in groups of lysate-DC showed obvious swelling in their foot pad. This response was strengthened with repeating inoculation, whereas DTH response was not seen in control group. In vivo depletion of NK cells resulted in a 40-60% reduction in growth suppression within the primary tumor, and depletion of CD4+ cells resulted in a 20% reduction in growth suppression. Conclusion: The tumor lysate-pulsed dendritic cells vaccine could elicit antitumor activity in RM-1 loaded C57BL/6 mice, and prolong the duration of RM-1 loaded C57BL/6 mice. So DC-based immunotherapy with hormone-refractory prostate carcinoma yielded protective immunity, generated efficient cellular antitumor responses, thereby providing further preclinical support for feasible immunotherapy approaches for prostate cancer.Xu Danfeng Liu Yushan Gao Yi Cui Xingang Xing Jizhang Yin Lei Yao Yacheng Min Zhilian 2009Journal of Medical Colleges of PLA(China)2009,24,1:0
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