Total neutron cross-sections were determined for He, Li, Be, C, Al, Fe, Cu and Pb at an average neutron momentum of 10 GeV/c. The results agree very well with total proton-neuclei cross-sections at 20 GeV/c. The interaction radii inferred from the cross-sections are in remarkable agreement with the half-density radii as obtained from electron scattering.
In this paper the ciruit and the design of an experimental 16 bits processor are described. The circuit is used in controller applications between mass storage devices and CPU of mainframes. The chip is fabricated in 2.5μ NMOS technology. This component (45 000 transistors, 35 mm2, 40 pins) handles data generated by a CAD tool for real-time control system (PIASTRE).
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This is the first case of an adult who developed recurrent pulmonary edema as a result of unrecognized chronic upper airway obstruction due to polyarticular juvenile rheumatoid arthritis. The case highlights the importance of considering upper airway involvement in the differential diagnosis of sedentary patients with arthritic joint disease and breathing difficulties.