548 research outputs found
E.T.\u27 Author William Kotzwinkle will Speak at UD Writers\u27 Workshop
No full textNews release announces that William Kotzwinkle, author of E.T. The Extraterrestrial, 14 children\u27s books and several screenplays, will speak at the University of Dayton and will serve as keynote speaker for the Annual UD Writers\u27 Workshop
Szafa marzeń. Dziecięce kryjówki w E.T. Stevena Spielberga
No full textThe filmmakers made efforts to present reality from a child’s viewpoint. Among the strategies applied for this purpose, we find a detailed approach to grasping the atmosphere of children’s bedrooms. The wardrobe, intimate lighting, cozy nooks and child’s props allow the creation of a space of autonomy and the uncanny effect, which slips away from adults’ perception. The author uses works on the anthropology of place, the psychoanalysis of dreams, film studies analyses of E.T. and also the history of cinematic representation of children’s worlds in order to describe the specificity of domestic space in Spielberg’s movie. At the same time, the author proposes that E.T. can be interpreted as a movie about the relative independence of children’s worlds in relation to the overpowering and stiflingAmerican suburbs. If we follow the proposed interpretation, then the popular judgment of E.T. as a conservative and family narration from Reagan’s days would seem to be too one-sided.The filmmakers made efforts to present reality from a child’s viewpoint. Among the strategies applied for this purpose, we find a detailed approach to grasping the atmosphere of children’s bedrooms. The wardrobe, intimate lighting, cozy nooks and child’s props allow the creation of a space of autonomy and the uncanny effect, which slips away from adults’ perception. The author uses works on the anthropology of place, the psychoanalysis of dreams, film studies analyses of E.T. and also the history of cinematic representation of children’s worlds in order to describe the specificity of domestic space in Spielberg’s movie. At the same time, the author proposes that E.T. can be interpreted as a movie about the relative independence of children’s worlds in relation to the overpowering and stiflingAmerican suburbs. If we follow the proposed interpretation, then the popular judgment of E.T. as a conservative and family narration from Reagan’s days would seem to be too one-sided
Back-propagation Of Ultrasound Pulses Via Directivity Spectrum Method
No full textThe directivity spectrum encodes information about the three dimensional field and its magnitude is independent of the distance from the transducer face in a lossless medium. The shape of the ultrasound pulse is determined by the phase of the directivity spectrum, and its phase is related to the position of the pulse in the space-time domain. This feature of the directivity spectrum can be used to predict the shape of the ultrasound pulse at any position by changing the phase of its directivity spectrum. The method for measuring the directivity spectrum proposed here depends on the utilization of a Large Aperture Hydrophone (LAH) which has the unique feature that its output is independent of the distance from the transducer face, in a lossless medium, and it is also diffraction-insensitive. The Fourier transform of the field is related to the directivity spectrum of the transducer and the LAH can measure its angular components. We confirmed these arguments by measurements in a water tank, with pulsed fields, for several orientations of the LAH. Once the directivity spectrum of the pulsed field was known, its phase could be shifted by a specific shift factor, and the spatial distribution of the field at a new position could be obtained by the inverse Fourier transform of the shifted directivity spectrum. We present images corresponding to the predicted (back-propagated) spatial distribution of the ultrasound field of a planar transducer, obtained from the directivity spectrum measured, at 6cm from the transducer face.1559562Schafer, M.E., Lewin, P.A., Transducer characterization using the angular spectrum method (1989) J. Acoust. Soc. Am., 85, pp. 2202-2214Healey, A.J., Leeman, S., A novel technique for imaging pulsed ultrasound fields (1997) Acoustical Imaging, 23, pp. 363-368. , Ed. Lees and Ferrari, Plenum PressLeeman, S., Healey, A.J., Costa, E.T., Nicacio, H., Dantas, R.G., Maia, J.M., Measurement of transducer directivity function (2001) Proc. of SPIE, 4325, pp. 47-53Costa, E.T., Development and application of a large aperture PVDF hydrophone for measurement of linear and non-linear ultrasound fields (1989), PhD Thesis, University of LondonLeeman, S., Healey, A.J., Weight, J.P., A new approach for calculating wideband fields (1998) Acoustical Imaging, 24. , (in press)Leeman, S., Dantas, R.G., Costa, E.T., Pulsed ultrasound field simulation and visualization (2000) Proc. of SPIE, 3982, pp. 109-11
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