Dans un article récent [1], Abderezak Ould Houcine montre qu’un groupe superstable résiduellement C pour une pseudo-variété C admet une série normale définissable G = G0⊲G1⊲· · ·⊲Gn telle que Gi/Gi+1 ∈ C pour i < n, et Gn est résoluble ; si G est ω-stable, on peut choisir Gn nilpotent. Nous étendons son résultat aux groupes supersimples, et montrons en même temps qu’on peut toujours prendre Gn ...

Introductions to Philosophy There are many good introductions to philosophy: [22], [53] and [1] have the advantage of being short and cheap. There are a few books [44, 11, 34] that introduce philosophical ideas by analysing films which raise philosophical issues. One of the advantages of these books is that they allow you to say that you are doing valuable research for this module while watchin...

PURPOSE To compare the effects of different 23- and 25-gauge microincision vitrectomy trocar cannula entry systems on incision architecture. METHODS We tested one ridged microvitreoretinal (MVR), one non-ridged MVR, one pointed beveled, and one round-tipped beveled blade (n=10 per blade design per incision type). Each blade's straight and oblique incision architecture was assessed in a silico...

Introduction PROPELLER [1] is a variant of multi-shot FSE technique, providing a high-resolution DWI with excellent immunity to offresonance. Its self-navigated nature around the center of K-space also allows for motion correction. The odd/even echo phase inconsistencies in the non-CPMG echo train were addressed using the “split-blade” method [2], where the blade width was reduced by a factor o...

Influence of diffuser vane position on dangerous blade vibration due to blade flow interactions at part load operating condition was investigated in a centrifugal compressor. By means of some measurement and analysis techniques a mechanism of interaction between blade vibration and circumferential flow condition in the impeller with vaned diffuser was determined, which is a cause of dangerous b...

Use of on-line fault detection techniques is integral to successful operation and maintenance of a wind turbine installation. The deployment of condition monitoring systems needs to be structured and sensitive to likely faults that may occur. In this work effects of blade faults have been simulated to understand sensitivity of blade faults on torque output. It is expected that this will help in...