Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Cerebral blood flow  (2)
  • Chemical Engineering  (2)
Collection
Keywords
Publisher
Years
  • 1
    ISSN: 1432-1076
    Keywords: Phenobarbital ; Cerebral blood flow ; Newborn infants ; Foetal distress
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The effect of phenobarbital on cerebral blood flow (CBF) was investigated by the intravenous Xenon133 clearance technique in seven term newborn infants with signs of mild to moderate hypoxic ischaemic encephalopathy, all on sustained spontaneous ventilation. Phenobarbital treatment had no significant effect on CBF 60 min after loading dosage (20mg/kg i.v.). Likewise, no significant change in mean arterial blood pressure, heart rate or transcutaneous gas tensions was observed. Though slight changes in CBF of short duration cannot be excluded, conventional dosage of phenobarbital to term newborn infants with foetal distress apparently imposes no risk of cerebrovascular damage.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1432-1076
    Keywords: Key words     Phenobarbital ; Cerebral blood flow ; Newborn infants ; Foetal distress
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract      The effect of phenobarbital on cerebral blood flow (CBF) was investigated by the intravenous Xenon133 clearance technique in seven term newborn infants with signs of mild to moderate hypoxic ischaemic encephalopathy, all on sustained spontaneous ventilation. Phenobarbital treatment had no significant effect on CBF 60 min after loading dosage (20 mg/kg i.v.). Likewise, no significant change in mean arterial blood pressure, heart rate or transcutaneous gas tensions was observed. Though slight changes in CBF of short duration cannot be excluded, conventional dosage of phenobarbital to term newborn infants with foetal distress apparently imposes no risk of cerebrovascular damage.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A strategy for synthesizing regulatory control structures is developed within the framework provided by singular value decomposition (SVD). Quantitative measures of interaction and sensitivity for the nodes, as well as for the entire system, are established with this method. The approach enables analysis of the control struture over a range of frequencies which are of practical importance for a particular processing unit, thus insuring that both static and dynamic effects are encompassed. In addition, this method allows the designer to identify the modeling aspects which are important in determining the performance of the synthesized control structures. A series of examples, presented in order of increasing complexity, demonstrate the usefulness and versatility of this procedure. The technique is implemented as an interactive computer package.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 31 (1985), S. 135-146 
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A method for assessing control performance at different operating conditions in a chemical process is developed using singular value analysis. The control potential of the system is established by analyzing the singular values of the steady-state system matrix. Dynamic considerations and interaction analysis can be included in the framework of the method described. The approach enables the process engineer to consider controllability of the process as well as economics in synthesizing a changeover control policy. Singular values depend on the scaling of the system, i.e., the definition of the physical dimensions of the system. The effects of scaling on the analysis are first investigated by scaling the steady-state system matrix with empirical methods, equilibration, and geometric scaling. Using the insights gained from these studies a scaling method, variable normalization and equation equilibration, which is intuitively appealing and suited for the purpose, is devised. Two typical systems, continuous stirred tank reactor and a polymerization reaction system, demonstrate the usefulness of this method.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
    Signatur Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...