RESEARCH INTERESTS:

         Mathematical Modeling and Simulation in Materials Science

         Numerical analysis and Scientific Computing

         Partial Differential Equations

         Image Processing

RECENT PUBLICATIONS:

    Modeling and simulation of dislocations

1.      D. Zhao, J.F. Huang, and Y. Xiang, A new version fast multipole method for evaluating the stress field of dislocation ensembles, Modelling Simul. Mater. Sci. Eng., to appear.

2.      C. Jin, W. Ren, and Y. Xiang, Computing transition rates of thermally activated events in dislocation dynamics, Scripta Mater., 62(4), 206-209, 2010.

3.      S. S. Quek, Y. W. Zhang, Y. Xiang, and D. J. Srolovitz, Dislocation cross-slip in heteroepitaxial multilayer films, Acta Mater., 58(1), 226–234, 2010 .

4.      H. Wei and Y. Xiang, A generalized Peierls-Nabarro model for kinked dislocations, Phil. Mag., 89(27), 2333-2354, 2009.

5.      Y. Xiang, Continuum approximation of the Peach-Koehler force on dislocations in a slip plane, J. Mech. Phys. Solids, 57(4), 728-743, 2009.

6.      H. Wei, Y. Xiang, and P.B. Ming, A generalized Peierls-Nabarro model for curved dislocations using discrete Fourier transform, Commun. Comput. Phys., 4(2), 275-293, 2008.

7.      Y. Xiang, H. Wei, P.B. Ming, and W. E, A generalized Peierls-Nabarro model for curved dislocations and core structures of dislocation loops in Al and Cu, Acta Mater., 56(7), 1447-1460, 2008.

8.      S.S. Quek, Z. Wu, Y.W. Zhang, Y. Xiang, and D.J. Srolovitz, Dislocation junctions as barriers to threading dislocation migration, Appl. Phys. Lett., 90, 011905, 2007.

9.      Y. Xiang and D.J. Srolovitz, Dislocation climb effects on particle bypass mechanisms, Phil. Mag., 86, 3937-3957, 2006.

10.  Y. Xiang, Modeling dislocations at different scales, Commun. Comput. Phys., 1(3), 383-424, 2006.

11.  S.S. Quek, Y. Xiang, Y.W. Zhang, D.J. Srolovitz, and C. Lu, Level set simulation of dislocation dynamics in thin films, Acta Mater., 54(9), 2371-2381, 2006.

12.  Y. Xiang and D.J. Srolovitz, Level set dislocation dynamics method, in Handbook of Materials Modeling, vol.1, Methods and Models of Materials Modeling, edited by S. Yip, Springer, 2307-2323, 2005.

13.  Y. Xiang, D.J. Srolovitz, L.T. Cheng, and W. E, Level set simulations of dislocation-particle bypass mechanisms, Acta Mater., 52 (7), 1745-1760 , 2004.

14.  Y. Xiang, L.T. Cheng, D.J. Srolovitz, and W. E, A level set method for dislocation dynamics, Acta Mater., 51(18), 5499-5518, 2003.

Modeling and simulation of epitaxial growth

1.      X. Zhu, H. Xu and Y. Xiang, Continuum model for the long-range elastic interaction on stepped epitaxial surfaces in 2+1 dimensions, Phys. Rev. B, 79(12), 125413, 2009.

2.      H. Xu and Y. Xiang, Derivation of a continuum model for the long-range elastic interaction on stepped epitaxial surfaces in 2+1 dimensions, SIAM J. Appl. Math., 69(5), 1393-1414, 2009.

3.      J.F. Huang, M.C. Lai, and Y. Xiang, An integral equation method for epitaxial step-flow growth simulations, J. Comput. Phys., 216(2), 724-743, 2006.

4.      Y. Xiang and W. E, Misfit elastic energy and a continuum model for epitaxial growth with elasticity, Phys. Rev. B, 69, 035409, 2004.

5.      Y. Xiang, Derivation of a continuum model for epitaxial growth with elasticity, SIAM J. Appl. Math., 63(1), 241-258, 2002.

6.      Y. Xiang, and W. E, Nonlinear evolution equation of the stress-driven morphological instability, J. Appl. Phys., 91,   9414-9422, 2002.

 Image Processing

1.      Y. Xiang, A.C.S. Chung, and J. Ye, An active contour model for image segmentation based on elastic interaction, J. Comput. Phys., 219(1), 455-476, 2006.

2.      A.C.S. Chung, Y. Xiang, J. Ye, and W.K. Law, Elastic interaction models for active contours and surfaces, The International Workshop on Computer Vision for Biomedical Image Applications: Current Techniques and Future Trends, The Tenth IEEE International Conference on Computer Vision (ICCV Workshop 2005), Beijing, China, Oct, 2005, LNCS 3765, pp. 314-323.

3.      Y. Xiang, A.C.S. Chung, and J. Ye, A new active contour method based on elastic interaction, IEEE International Conference on Computer Vision and Pattern Recognition 2005 (CVPR 2005), San Diego, CA, USA, June 20-26, 2005, Vol. 1, 452-457.