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| 1 | Asymptotic speed of propagation and traveling wavefronts in a non-local delayed lattice differential equation显示文摘 | MA Shiwang WANG Peixuan ZOU Xingfu | 2006 | Nonlinear Anal RWA2006，65，： | 1 |
| 2 | Monitoring study on the boundary thermal conditions of duct-ventilated embankment in permafrost regions显示文摘 | Niu Fujun Liu Xingfu Ma Wei Wu Qingbai Xu Jian | 2007 | Cold Regions Science and Technology2007，，3： | 1 |
| 3 | High brightness NIR-Ⅱ nanofluorophores based on fused-ring acceptor molecules显示文摘It is challenging to develop molecular fluorophores in the second near-infrared(NIR-Ⅱ)window with long wavelength emission and high brightness,which can improve the performance of biological imaging.Herein,we report a molecular engineering approach to afford NIR-Ⅱ fluorophores with these merits based on fused-ring acceptor(FRA)molecules.Dioctyl 3,4-propylenedioxy thiophene(PDOT-C8)is utilized as the bridging donor to replace 3-ethylhexyloxy thiophene(3-EHOT),leading to more than 20 times enhancement of brightness.The nanofluorophores(NFs)based on the optimized CPTIC-4F molecule exhibit an emission peak of 1,110 nm with a fluorescence quantum yield(QY)of 0.39%(QY of IR-26 is 0.050%in dichloroethane as reference)and peak absorption coefficient of 14.5 x 10^4 M^-1·cm^-1 in aqueous solutions,which are significantly higher than those of 3-EHOT based COTIC-4F NFs.It is found that PDOT-C8 can weaken intermolecular aggregation,enhance protection of molecular backbone from water,and decrease backbone distortion,beneficial for the high brightness.Compared with indocyanine green with same injection dose,CPTIC-4F NFs show 10 times higher signal-to-background ratio for whole body vessels imaging at 1,300 nm long pass filters. | Xingfu Zhu Chunchen Liu Zhubin Hu Haile Liu Jiang Wang Yang Wang Xinyuan Wang Rui Ma Xiaodong Zhang Haitao Sun Yongye Liang | 2020 | Nano Research2020，13，9： | 1 |
| 4 | Wavelet-Based Boundary Element Method for Calculating the Band Structures of Two-Dimensional Phononic Crystals显示文摘A wavelet-based boundary element method is employed to calculate the band structures of two-dimensional phononic crystals,which are composed of square or triangular lattices with scatterers of arbitrary cross sections.With the aid of structural periodicity,the boundary integral equations of both the scatterer and the matrix are discretized in a unit cell.To make the curve boundary compatible,the second-order scaling functions of the B-spline wavelet on the interval are used to approximate the geometric boundaries,while the boundary variables are interpolated by scaling functions of arbitrary order.For any given angular frequency,an effective technique is given to yield matrix values related to the boundary shape.Thereafter,combining the periodic boundary conditions and interface conditions,linear eigenvalue equations related to the Bloch wave vector are developed.Typical numerical examples illustrate the superior performance of the proposed method by comparing with the conventional BEM. | Qi Wei Xingfu Ma Jiawei Xiang | 2021 | Acta Mechanica Solida Sinica2021，34，5： | 0 |
| 5 | Natural hybridization and reproductive isolation between two Primula species显示文摘Natural hybridization frequently occurs in plants and can facilitate gene flow between species,possibly resulting in species refusion. However,various reproductive barriers block the formation of hybrids and maintain species integrity. Here,we conducted a field survey to examine natural hybridization and reproductive isolation(RI) between sympatric populations of Primula secundiflora and P. poissonii using ten nuclear simple sequence repeat(SSR) loci. Although introgressive hybridization occurred,species boundaries between P. secundiflora and P. poissonii were maintained through nearly complete reproductive isolation. These interfertile species provide an excellent model for studying the RI mechanisms and evolutionary forces that maintain species boundaries. | Yanping Xie Xingfu Zhu Yongpeng Ma Jianli Zhao Li Li Qingjun Li | 2017 | Journal of Integrative Plant Biology2017，59，8： | 0 |
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