Zobrazeno 1 - 10
of 14
pro vyhledávání: '"G. S. Almasi"'
Publikováno v:
Data Mining and Knowledge Discovery. 3:171-195
We describe a scalable parallel implementation of the self organizing map (SOM) suitable for data-mining applications involving clustering or segmentation against large data sets such as those encountered in the analysis of customer spending patterns
Publikováno v:
Concurrency: Practice and Experience. 5:105-131
We report significant speed-up for seismic migration running in parallel on networkconnected IBM RISC/6000 workstations, A sustained performance of 15 MFLOP is obtained on a single-entry-level model 320, and speed-ups as high as 5 are obtained for si
Publikováno v:
Journal of Applied Physics. 48:5201-5208
This paper reports on the propagation and transfer of 1‐μm bubbles in ion‐implanted contiguous‐disk devices, made by conventional photolithographic techniques. Bubble‐propagation circuits are made of undulating patterns masked from implantat
Autor:
A. C. Smith, G. S. Almasi
Publikováno v:
Journal of Applied Physics. 39:233-245
CdTe-HgTe heterostructures preparation with minimum energy gaps, showing photovoltaic effect caused by undesirable p-n junction due to Cd vacancy formation
Publikováno v:
Journal of Applied Physics. 36:1848-1854
In low melting point or low decomposition temperature materials with low thermal conductivity the local heating generated by the electron beam of an electron microprobe induces permanent damage to the sample and thus makes the technique unreliable. A
Publikováno v:
Journal of Applied Physics. 50:2258-2260
The operating margins for bubble propagation along ion‐implanted contiguous‐disk devices are found to depend upon the orientation of the propagation track with respect to the tridirectional crystalline symmetry of the implanted garnet layer. Cont
Autor:
G. S. Almasi
Publikováno v:
AIP Conference Proceedings.
This paper reviews the status of quantitative models for field‐access bubble domain devices. At present, quasistatic single‐bubble margins can be predicted with reasonable accuracy. The essential effects which such a model must include are discus
Publikováno v:
AIP Conference Proceedings.
A simple model for bubble domain propagation in a field‐access device is obtained from a new analytical approach which, in contrast to previous treatments, concentrates on the energy of the bubble rather than of the overlay, and emphasizes flux flo
Publikováno v:
AIP Conference Proceedings.
Experiments on disk and hole patterns in permalloy and in ion‐implanted garnet layers1..2 lead to the conclusion that the bubble domain propagation mechanism in the two structures is different. A ’’charged‐wall’’ model explains the ion‐
Publikováno v:
AIP Conference Proceedings.
Magnetoresistive permalloy sensors prepared by a combined additive‐subtractive process have been used to obtain signals over 1 mV in detecting 4‐micron bubble domains stretched about 3X. An overall 3‐to‐1 signal to noise ratio was obtained at