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- Yibeltal Fantahun Alem, Zhao Cheng Xuan
- 2010 2nd International Conference on Future…
- 2010

Mobile ad-hoc networks are prone to a number of security threats. The fact that mobile ad-hoc networks lack fixed infrastructure and use wireless link for communication makes them very susceptible to an adversary's malicious attacks. Black hole attack is one of the severe security threats in ad-hoc networks which can be easily employed by exploiting… (More)

- Z. C. Xuan, Kwok Hong Lee
- 2003

Abstract— We present an a-posteriori method for computing rigorous upper and lower bounds of the J-integral in two dimensional linear elasticity. The J-integral, which is typically expressed as a contour integral, is recast as a surface integral which yields a quadratic continuous functional of the displacement. By expanding the quadratic output about an… (More)

- Z. C. Xuan, X. K. Zhang
- Simulation Modelling Practice and Theory
- 2008

- Z. C. Xuan, K. H. Lee
- ICCSA
- 2003

- Z. C. Xuan
- 2011 Fourth International Symposium on Parallel…
- 2011

A parallel computing procedure for computing the bounds on the {\it J}-integral in functionally graded materials is presented based on a Neumann element a-posteriori error bound. The finite element solution of {\it J}-integral is first obtained on a coarser finite element mesh, then a-posteriori bounding procedure based on the finite element error estimate… (More)

- Z. C. Xuan, X. K. Zhang, M. Guan
- Advances in Engineering Software
- 2014

- N. Parés, Z. C. Xuan, J. Peraire
- 2004

We present an a-posteriori method for computing rigorous upper and lower bounds of the J-integral in two dimensional linear elasticity. The J-integral, which is typically expressed as a contour integral, is recast as a surface integral which yields a quadratic continuous functional of the displacement. By expanding the quadratic output about an approximate… (More)

- Z. C. Xuan, K. H. Lee, Jaime Peraire
- ICCSA
- 2003

! Department of Computer Science, Tianjin University of Technology and Education, Tianjin 300222, China. § Institute of Mathematics, Helsinki University of Technology, P.O. Box 1100, FI-02015 TKK, Finland. " Modeling and Scientific Computing, IACS-CMCS, École Polytechnique Fédérale de Lausanne, EPFL, Station 8, CH-1015 Lausanne, Switzerland. † MOX–… (More)

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