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Thus it is important to make a mobile agent fault-tolerant. That is to say, the errors can be detected and recovered. In the following sections, we will discuss several ideas to implement fault-tolerant in mobile agents: primary-backup model, exactly-once mobile agents, sliding window, replicated agents with voting. We will also introduce a new architecture… (More)

- Xiaowu Li, Qiao Xin, Zhinan Wu, Mingsheng Zhang, Qian Zhang
- The Visual Computer
- 2012

An effective geometrically motivated intersection algorithm for two spatial parametric curves is presented. Examples are shown to illustrate the efficiency and robustness of the new method.

- Qiao Xin, Chunlai Mu, Dengming Liu
- J. Applied Mathematics
- 2011

We deal with the extinction of the solutions of the initial-boundary value problem of the discrete pLaplacian equation with absorption ut Δp,ωu−u with p > 1, q > 0, which is said to be the discrete p-Laplacian equation on weighted graphs. For 0 < q < 1, we show that the nontrivial solution becomes extinction in finite time while it remains strictly positive… (More)

A new orthogonal projection method for computing the minimum distance between a point and a spatial parametric curve is presented. It consists of a geometric iteration which converges faster than the existing Newton’s method, and it is insensitive to the choice of initial values. We prove that projecting a point onto a spatial parametric curve under the… (More)

- Tao Pan, Chunyan Liu, +4 authors Wei Dong
- Environmental science and pollution research…
- 2017

A recent work has shown that hydrophobic organic compounds solubilized in the micelle phase of some nonionic surfactants present substrate toxicity to microorganisms with increasing bioavailability. However, in cloud point systems, biotoxicity is prevented, because the compounds are solubilized into a coacervate phase, thereby leaving a fraction of… (More)

- Qiao Xin, Chunlai Mu, Meng Li
- Mathematics and Computers in Simulation
- 2011

In this paper, we improve Lee–Seo’ bimodal image segmentation model using a regularization term. This regularization term will maintain the smoothness of the level set function and decrease the level set function’ oscillations around the desired steady state when the noise level is lager. Furthermore, we also provide a rigorous study of the modified model.… (More)

- Lu Xu, Qiao Xin, Anping Wang
- 2012 7th International Conference on Computer…
- 2012

In this paper, we propose the concept of generalized harmonic curvature for the image surface, and then, we give a new diffusion coefficient which is based on the generalized harmonic curvature for the PM model. Moreover, we also give a semi-implicit difference scheme, the stability with respect to the sup-norm doesn't depend on the time step. Finally,… (More)

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