Zobrazeno 1 - 10
of 11
pro vyhledávání: '"W. R. Heller"'
Publikováno v:
IEEE Design & Test of Computers. 1:43-51
Early estimation of the wiring space requirements for logic chips and chip-carrying packages is essential. The authors propose a way to do this by taking into account the average length of wiring connections, the number of logic units to be wired, an
Autor:
M. Correia, P. W. Case, T. C. Raymond, W. R. Heller, H. Ofek, R. L. Simek, W. Gianopulos, C. B. Stieglitz
Publikováno v:
IBM Journal of Research and Development. 25:631-646
Within the context of the changing design requirements of digital systems spanning the semiconductor era, this paper describes the significant steps in the development of Design Automation technology in IBM. We cover the design tools which support th
Publikováno v:
IBM Journal of Research and Development. 26:328-341
In this paper, experiments are reported which use automatic global and line-packing wiring routines, supplemented by a restricted maze runner, to evaluate the overall influences of several important physical variables upon the wireability of several
Autor:
W. R. Heller, W. E. Bron
Publikováno v:
Physical Review. 119:1864-1868
Measurements were made on the changes in the bleaching rate of the F band as the result of varying the intensity of F light. Bleaching was done on KCl crystals that were irradiated at room temperature with hard x rays into either the first or second
Publikováno v:
The Journal of Chemical Physics. 36:2893-2896
A study has been made of the effect of applied electric fields upon the absorption spectrum of a dye molecule (methyl red) dissolved in a relatively inert, transparent, matrix of high dielectric strength (polystyrene). Theory indicates that the exist
Publikováno v:
Reviews of Modern Physics. 36:323-327
The superconductivity of composites composed of Al-, Au-, and Ag-coated Pb and Pb-Bi filaments is studied. The free energies and magnetic susceptibilities of these composites are found. (T.F.H.)
Autor:
W. R. Heller, D. L. Dexter
Publikováno v:
Physical Review. 91:273-278
The quantum-mechanical polarizability of an idealized insulating crystal is calculated by the semiclassical method, in which the electromagnetic radiation of frequency small compared with electronic resonance absorption frequencies is treated classic
Publikováno v:
Journal of the American Chemical Society. 86:1004-1008
Autor:
Walter E. Bron, W. R. Heller
Publikováno v:
Physical Review. 136:A1433-A1444
Measurements have been made of the crystal-field splitting of the $^{7}F_{J}$ energy levels of the $4{f}^{6}$ configuration of the ${\mathrm{Sm}}^{2+}$ ion which is dissolved in a number of alkali-halide lattices. Crystal-field term assignments were
Publikováno v:
Applied Physics Letters. 1:93-95