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Digitale Medien

Adaptive control of anaerobic digestion processes - a pilot-scale application (1988)

Renard, P. ; Dochain, D. ; Bastin, G. ; [weitere]

New York, NY [u.a.] : Wiley-Blackwell

Biotechnology and Bioengineering 31 (1988), S. 287-294

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Details

ISSN: 0006-3592

Schlagwort(e): Chemistry ; Biochemistry and Biotechnology

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Biologie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Notizen: A simple adaptive control algorithm, for which theoretical stability and convergence properties had been previously demonstrated, has been successfully implemented on a biomethanation pilot reactor. The methane digester, operated in the CSTR mode was submitted to a shock load, and successfully computer controlled during the subsequent transitory state.

Zusätzliches Material: 4 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/bit.260310402

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Digitale Medien

Production of secondary radioactive beams from 44 MeV/u Ar projectiles (1985)

Bimbot, R. ; Della Negra, S. ; Aguer, P. ; [weitere]

Springer

The European physical journal 322 (1985), S. 443-456

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ISSN: 1434-601X

Schlagwort(e): 25.70.−Z

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract Secondary beams have been produced through interaction of a 1760 MeV Ar beam with a 99 mg/cm2 Be target. An achromatic spectrometer is used to select the magnetic rigidity corresponding to a given beam, and to transport this beam over a distance of about 18m. The beam purity is studied using a solid state ΔE-E telescope. Beams of38S and39Cl are produced with a purity of about 80%, and production rates of 1.5·10−6 I0 and 5·10−5 Io respectively. Here I0 denotes the primary beam intensity. Beams of38Ar,39Ar and41K are produced with about the same abundances as39Cl but with lower purities. It is shown that, by setting properly the experimental parameters, the beam production can be improved by a factor 2 to 5. This could lead to intensities of about 2·106 pps for38S, and of 107 to 108 pps for the four other beams. The possibility of purifying these beams by placing a degrader between the two dipoles of the spectrometer is shown experimentally.