Since the beginning of the nineties, the CEA (the French Atomic Energy Commisssion), with developing the CIVA NDT expertise platform is greatly involved in the development of simulation tools. Over the years, and with successive versions of CIVA, the results of modeling research work have been being integrated into the software both for ultrasonics and Eddy current techniques. In order to fullf...

Collaboration networks provide a method for examining the highly heterogeneous structure of collaborative communities. However, we still have limited theoretical understanding of how individual heterogeneity relates to network heterogeneity. The model presented here provides a framework linking an individual’s skill set to her position in the collaboration network, and the distribution of skill...

In a recent publication on experimental haemarthrosis in the rabbit we described many interesting ultrastructural changes that occur in the synovial membrane (Roy and Ghadially, 1966). Two such changes attracted our attention: an increase in the number of intermediate and Type B synovial cells, and the occurrence of many small and large vesicles containing fiocculent and granular material. Howe...

By inducing two-photon absorption within the active layer of a 28nm test chip, we demonstrate nonlinear laser-assisted device alteration and single-event upsets by temporarily perturbing the timing characteristics of sensitive transistors. Individual qualitative and quantitative evaluations are presented for both techniques, with lateral resolutions demonstrated with sub-100nm performance. A si...

We here present the results of ultrasonographic (US) evaluations on the alteration of renal diameter of chronic HD patients. Of 109 outpatient HD patients who had neither severe acquired cystic disease of the kidney nor hereditary polycystic kidney disease, we performed US two or three times to measure their maximum renal diameter (mean of both kidneys), and the yearly alteration rate was calcu...

This paper presents a formalism, LADA, aimed especially at the description of systems and situations which arise during the design and analysis of groupware. We are particularly interested in highly distributed systems and so LADA explicitly models entities (people and things) acting at different unconnected locations. It not only describes the behaviour of the computer software, but also the s...

chlorite flakes, as a product of alteration of biotite, the dominant ferromagnesian mineral in the paleozoic granitic rocks of the canadian appalachians, have been analyzed by electron microprobe for major elements and by 57fe m?ssbauer spectroscopy for the coordination and oxidation state of fe. comparison of m?ssbauer fe3+/fe ratios obtained from chlorite and its host biotite indicates that c...