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Certaines caméras de tomographie par émission de positons (TEP) offrent la possibilité de choisir entre les modes d’acquisition 2D et 3D. Devant l’absence dans la littérature de données comparatives, objectives, obtenues dans les conditions de routine clinique entre les deux modes, nous avons réalisé une étude comparative reposant sur l’appréciation de critères qualitatifs et quantitatifs.Une série...
This paper is devoted to the experimental study of bubble column hydrodynamics. A bubble column flow was performed in a vertical rectangular channel, at liquid velocities of approximately 0.10m/s and high void fractions. First, void fraction, bubble size and bubble velocity were measured with a dual optical probe. Liquid velocities were obtained using hot film velocimetry. Some characteristics of...
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