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Digitale Medien

Comparison of pulsed and continuous operation of the Cu II laser (1987)

Hamisch, J. ; Macdonald, R.

Springer

Applied physics 43 (1987), S. 183-187

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Details

ISSN: 1432-0649

Schlagwort(e): 42.55.Hq

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract The peak output power of Cu II laser emission in the uv at 260 nm and in the ir at 780 nm was measured for different operating conditions in the pulsed and the cw mode. In contrast to the ir laser output the laser power in the uv is higher in the cw mode than in the quasi cw mode. This property depends on contaminations of the discharge gas.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00695621

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Digitale Medien

Data reconciliation and parameter estimation in plant performance analysis (1988)

MacDonald, R. J. ; Howat, C. S.

Hoboken, NJ : Wiley-Blackwell

AIChE Journal 34 (1988), S. 1-8

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Details

ISSN: 0001-1541

Schlagwort(e): Chemistry ; Chemical Engineering

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung

Notizen: Results of a computer study are reported applying data reconciliation and interpretation techniques to a single-stage flash operation. Measured errors in the process variables are significantly reduced. The techniques are successfully extended to estimate flash efficiency. The flash efficiency is estimated using two methods: (1) a statistically rigorous simultaneous data reconciliation and efficiency estimation procedure, and (2), a faster, nonrigorous sequential procedure. It is found that the simultaneous procedure provides better measured variable and flash efficiency estimates.

Zusätzliches Material: 8 Ill.