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  • 81.60  (2)
  • Reservoir operation  (1)
  • Anhydro-4-epitetracycline
  • DPPE,; dipalmitoylphosphatidylethanolamine
  • Glucose transport
  • 1990-1994  (3)
Sammlung
Schlagwörter
Verlag/Herausgeber
Erscheinungszeitraum
  • 1990-1994  (3)
Jahr
  • 1
    Digitale Medien
    Digitale Medien
    Optimal operation model of a single reservoir with drought duration explicitly concerned (1992)
    Springer
    Stochastic environmental research and risk assessment 6 (1992), S. 123-134 
    Details
    ISSN: 1436-3259
    Schlagwort(e): Reliability analysis ; Drought duration ; Reservoir operation ; Markov decision process
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Architektur, Bauingenieurwesen, Vermessung , Energietechnik , Geographie , Geologie und Paläontologie
    Notizen: Abstract In this paper, a new model for a single reservoir operation optimization is proposed. The proposed model can design the optimal operation policy of a reservoir with explicit consideration of drought duration. The authors model this problem by formulating a single-stage loss function as a function of both the reservoir release and drought duration. Thereby the expected loss per period which is calculated based on the above extended single-stage loss function is minimized in infinite time horizon on the basis of Markov decision process (MDP) theory. The reliability indices are estimated as expected loss per period for specified extended loss functions. Finally, the features of the proposed model are illustrated through numerical analysis.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01591334
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Improvement of corrosion resistance of carbon steel using chemical vapor deposition from Cr(CO)6 with an ArF excimer laser (1992)
    Springer
    Applied physics 55 (1992), S. 207-212 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 81.15 ; 81.60 ; 68.55
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract Corrosion resistance of carbon steel coated with thin film deposited from Cr(CO)6 using an ArF excimer laser (193 nm) has been evaluated by an electrochemical method as a function of laser beam intensity. The carbon steel coated with the film formed at higher beam intensity shows higher corrosion resistance. Microstructure, composition, and thickness of the films have also been investigated. SEM micrographs show that the films consist of small grains which decrease in size with increasing beam intensity. Auger electron spectroscopy (AES) combined with Ar+ beam sputtering reveals that the films deposited at higher beam intensity give higher chromium content, and that the thickness at a fixed total irradiation energy increases up to the intensity of 10 MW cm−2, falling above this intensity. In addition, the change of film thickness by addition of buffer gases (Ar, CO, and H2O) has been investigated. The thickness is 10 times smaller under the addition of H2O, and twice smaller under the addition of Ar or CO than without the addition of gases. A deposition mechanism based on photolysis of Cr(CO)6 in the gas phase is proposed related to the experimental data after the discussion of several possible mechanisms.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00334225
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Improvement of corrosion resistance of carbon steel using chemical vapor deposition from the mixture of Mo(CO)6 and Cr(CO)6 with an ArF-excimer laser (1994)
    Springer
    Applied physics 58 (1994), S. 99-105 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 81.15 ; 81.60 ; 68.55
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract The corrosion resistance of carbon steel has been improved by the deposition from the mixture of Mo(CO)6 and Cr(CO)6 as well as from each carbonyl alone with an ArF-excimer laser (193 nm). The corrosion resistance attained by coating with the films from the mixture is higher than from Mo(CO)6 alone, while lower than from Cr(CO)6 alone. While the corrosion resistance increases with beam intensity monotonically over the range 4–25 MW cm−2 for the deposition from Cr(CO)6 alone, it tends to decrease slightly above 15 MW cm−2 for the deposition from Mo(CO)6 alone and from the mixture. SEM (Scanning Electron Microscope) photographs show that the films from each carbonyl and their mixture consist of small grains that are more densely packed at higher beam intensities. The comparison of the film thickness evaluated from sputtering time to remove the films with that from direct observation with SEM suggests that the density of the film increases with beam intensity. In the films deposited from the mixture, molybdenum is preferentially incorporated from the gas phase.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00331525
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
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