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Six different combinations of film-processor temperature (33.3 degrees C, 35 degrees C), development time (22 sec, 44 sec), and chemistry (Du Pont medium contrast developer [MCD] and Kodak rapid process [RP] developer) were each evaluated by separate analyses with Hurter and Driffield curves, test images of plastic step wedges, noise variance analysis, and(More)
Cramer's rule expresses the solution to a system of simultaneous linear equaations in terms of ratios of determinants. It is widely known as an example of an impractical method for large systems because of the time required to compute the determinants. For 2-by-2 systems this time difficulty disappears and, since the method does not involve a search for(More)
This paper proposes an approach of personalizing the vector space model with dependency parse relations and applying Latent Semantic Analysis on it to generate update summary from multiple documents. The purpose of the update summary is to inform the reader of new information about the topic. The main task was to produce two concise summaries from two(More)
Early last March, I was in California and so dropped by to visit George Forsythe. I recall our conversation because it included a few of the many things George was interested in. We talked about the NATS project work in subroutine testing and distribution. He described a textbook he was writing. He went over plans for his upcoming sabbatical leave,(More)
  • C. Moler
  • Digest of Papers. COMPCON Spring 88 Thirty-Third…
  • 1988
A description is given of the Titan, a supercomputer with a price tag that makes it possible to devote the entire machine to a single user. Peak floating-point performance is 64 MFLOPS (million floating-point instructions per second). The Titan compilers automatically vectorize and parallelize standard code. Powerful, integrated graphics allow visualization(More)
where t>0, o o < x < o o , U(t, x)=(u(t, x), v(t, x)), and the function F(U)= (f(u, v), g(u, v)) is smooth. GLIMM [2] has proved existence of a weak solution provided that the variation of the initial data Uo(x) is small. GLIMM & LAX [3] then improved this result by requiring that the oscillation of Uo(x) be small. SMOLLER [7] has proved the existence of a(More)
A new imaging system for digital subtraction angiography (DSA) was evaluated in 30 clinical studies. The image receptor is a 25 X 25 cm, 12 par gadolinium oxysulfate rare-earth screen whose light output is focused to a low-light-level Isocon camera. The video signal is digitized and processed by an image-array processor containing 31 512 X 512 memories 8(More)