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In 1989 the Cray YMP-8, Fujitsu VP-400E, Hitachi 5-820, and
NEC SX-2 were benchmarked on a delta wing flow using the
Reynolds-averaged Navier/Stokes code. The present update extends
the benchmark to include the Cray YMP-C90, Fujitsu VP-2600/10,
and NEC SX-3/14. Since the Cray YMP-8 that benchmarked
earlier was a test prototype with a cycle time of 6.4 ns, a
production model YMP with a cycle time of 6 ns was also
included in the update.

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Slow Dynamics in Condensed Matter.
Michael Shlesinger

The article reports on the first meeting on "Slow Dynamics in
Condensed Matter" organized by the Tohwa University in the
Fukuoka Prefecture, Japan. The focus of this meeting was
devoted to slow relaxation in glassy materials. Many different
materials were found to have similar characteristics near their
glass transition.

Materials Science

First International Conference on Intelligent Materials
23-25 March, 1992 . .
Kenneth J. Wynne

The article reports on the First International Conference on
Intelligent Materials (ICIM '92) held in Oiso, Japan in March
1992. Emphasis is on research progress in the development of
polymers that behave as intelligent materials.

Electronic Materials Research in the Peoples Republic

of China

Victor Rehn

This article reviews the progress of several research institutions and
laboratories in electronics-related and synchrotron-radiation-based
research in the People's Republic of China.

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109

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Ocean Science

National Defense Academy of Japan: Undergraduate and Ocean
Science and Engineering Graduate Programs

Index

Pat Wilde

This report focuses on the Ocean Sciences program. The research
facilities are being modernized and expanded with several new
flumes and test tanks for coastal engineering and ship
hydrodynamic studies just completed. Computer image processing
facilities that have been developed to support research in air and
sea interactions, particularly during sea and ice conditions, recently
have been improved. Underwater acoustics can be studied by
using three high-pressure specially designed chambers.

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SIBRIEFS

Scientific Information Briefs

Interpolation and fitting
Rules and Constrain Based
Modeling

Hidden surface and Hidden
curve algorithms
Raster technology
Animation

- Computer Aided Geometric Design

Tools and Programming
Environments

Because of this large number of topics, very few papers were presented in many of these topics. In addition, there was an invited talk on Holographic Video and two invited talks about the title theme of the conference; "Integrating Computer Graphics with Computer Vision". The first of these talks was by professor A. Rosenfeld of the University of Maryland, who presented his qualitative views that the link between the Computer Graphics and Computer Vision is the advanced data structure or the models they use.

The second talk was given by Professor Encarnacao who described the experience and on-going programs at the Technical University of Darmshtadt in cooperation with other European countries in using multimedia, visualization, and computer graphics techniques in distant education and industrial training.

The Conference keynote address was by Mr. I Wasaki (the senior vice president of NTT, Japan) who presented the Japanese interest and determination to develop the telecommunication in the 21st Century to become more visual, intelligent and personal. The paper outlined the

research and development activities carried out by NTT to bring the VI&P concepts to reality by the early years of the 21st Century. The plans are to complete the development of high-speed optical fiber, broad band (B-ISDN) early in the 2000s for all business users, and by the 2015 for all households throughout Japan.

This trend is very similar to that in the United States and Europe; although, I am not aware of as clear a plan in the United States as this talk lead me to believe exists in Japan.

The volume visualization session consisted of four papers, one from the West (Norway) and three from the East. The four papers aim at speeding up the computation processes. The paper by Giertsen (IBM, Norway) describes the use of a scan plane buffer associated with each scan line. This buffer maintains the individual contributions to the pixel values of the scan line. Further, the geometric primitives are scan converted and the results inserted into a single scan single scan line multiple layer Z-Buffer. Final pixel values for the scan line are determined by merging the two buffers.

The second paper by Shu and Chui (Singapore) suggests an incremental approach to approximate the trilinear interpolation in a ray casting technique for volume rendering that is twice as fast as the usual trilinear interpolation process to determine the densities of the sample points along a ray for the same image quality. Another efficiency improvement in the cost of volume reading was presented by Koyamoda (IBM,

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