Carotid atherosclerotic disease constitutes a major modern health problem whose diagnosis primarily relies on imaging. Grading of stenosis has been long used as the main factor for risk stratification and guiding of management. Nevertheless, increasing evidence has shown that additional plaque characteristics such as plaque composition and surface morphology play an important role in the occurr...

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We report on some recent advancements on the development of the ROADRUNNER system, which is able to automatically infer a wrapper for HTML pages. One of the major drawbacks of the ROADRUNNER approach was its limited ability in handling irregularities in the source pages. To overcome this issue, we have developed a technique to deal with chunks of unstructured HTML code. Several experiments have...

(1.2) \D[zu ..., zn ; B(x, r)]\ > c2(K, e). n < Note that the exponent {\ — (1/2K) e) of n is essentially the best possible: (2 — (1/2K) e) cannot be replaced by the exponent (2 — (1/2K) + e) with e > 0. Note further that (1.1) or (1.2) above guarantees the existence of a ball in U with 'error' very large as compared to that of boxes in U with sides parallel to the axes. We recall that in 1954 ...

High speed trains are currently meant to run faster and to carry heavier loads, while being less energy consuming and still respecting the security and comfort certification criteria. To face these challenges, a better understanding of the interaction between the dynamic train behavior and the track geometry is needed. As during its lifecycle, the train faces a great variability of track condit...

This paper presents a methodology to build representative railway track geometries thanks to a stochastic modelling. This modelling, which has to integrate the statistical and spatial variabilities and dependencies, is a key issue when using simulation for conception, maintenance or certification purposes, as the dynamic behaviour of the trains is mainly induced by the track geometry. The stoch...

In the article, it is presented materials on abrasive blasting of teeth saw blades cotton processing machines with particles black silicon carbide. The micro-profile surface, characterized by height and pitch irregularities, after microcutting able to intensify process fiber separation activating tank surfaces teeth. This machining also accompanied deformation hardening surface layer teeth, lea...

Fingerprint image segmentation heavily influences the performances of every automated fingerprint identification system. W e propose a segmentation technique based on the topographic properties of the image SUTface. The digital image is treated as a noisy sampling of the underlying continuous surface which is approximated by orthogonal Chebyshev polynomials. Ridge and valley regions are discrim...