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  • NUCLEAR ENGINEERING  (2)
  • theophylline  (2)
  • COMPUTER SYSTEMS  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 28 (1985), S. 429-431 
    ISSN: 1432-1041
    Keywords: theophylline ; asthma ; personality measures ; pharmacokinetics ; volunteers ; patients
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Thirteen volunteers received an iv dose of theophylline followed by blood sampling for 8 h to calculate pharmacokinetic parameters. Ten patients with asthma undergoing chronic dosing with slow release aminophylline underwent 12 h of blood sampling to calculate theophylline clearance. Both groups completed an Eysenck Personality Inventory (EPI) from which was derived scores for neuroticism (N) and extroversion (E). Using multiple regression analysis no independent effect of either N or E score on theophylline clearance or half-life could be demonstrated.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 26 (1984), S. 635-637 
    ISSN: 1432-1041
    Keywords: theophylline ; inhalation ; saliva-serum distribution ; healthy volunteers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Six healthy volunteers received an iv infusion of 317 mg lysine theophylline (equivalent to 197 mg anhydrous theophylline) in order to calculate theophylline clearance by standard methods. They subsequently received a 20 minute inhalation of nebulised lysine theophylline. Serum and salivary theophylline concentrations were measured and all saliva was collected for the first hour. From these concentrations estimates were made of the distribution of theophylline into the blood and saliva with 40% to 94% identified in the blood. Very high salivary concentrations were reached during the inhalation phase with saliva: serum concentration ratios of between 60 and 1600.
    Type of Medium: Electronic Resource
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  • 3
    Publication Date: 2011-08-16
    Description: A critical experiment with spherical symmetry has been conducted on the gas core nuclear reactor concept. The nonspherical perturbations in the experiment were evaluated experimentally and produce corrections to the observed eigenvalue of approximately 1% delta k. The reactor consisted of a low density, central uranium hexafluoride gaseous core, surrounded by an annulus of void or low density hydrocarbon, which in turn was surrounded with a 97-cm-thick heavy water reflector.
    Keywords: NUCLEAR ENGINEERING
    Type: Nuclear Science and Engineering; 47; Jan. 197
    Format: text
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  • 4
    Publication Date: 2019-06-27
    Description: Variations in cavity wall and injection configurations of the gas core reactor were aimed at establishing flow patterns that give a maximum of the nuclear criticality eigenvalue. Correlation with the nuclear effect was made using multigroup diffusion theory normalized by previous benchmark critical experiments. Air was used to simulate the hydrogen propellant in the flow tests, and smoked air, argon, or Freon to simulate the central nuclear fuel gas. Tests were run both in the down-firing and upfiring directions. Results showed that acceptable flow patterns with volume fraction for the simulated nuclear fuel gas and high flow rate ratios of propellant to fuel can be obtained. Using a point injector for the fuel, good flow patterns are obtained by directing the outer gas at high velocity long the cavity wall, using louvered injection schemes. Recirculation patterns were needed to stabilize the heavy central gas when different gases are used.
    Keywords: NUCLEAR ENGINEERING
    Type: NASA-CR-121191 , ANCR-1118
    Format: application/pdf
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  • 5
    Publication Date: 2019-06-27
    Description: The paper describes an image data processing system (IDAPS), its hardware/software configuration, and interactive and batch modes of operation for the analysis of the Skylab/Apollo Telescope Mount S056 X-Ray Telescope experiment data. Interactive IDAPS is primarily designed to provide on-line interactive user control of image processing operations for image familiarization, sequence and parameter optimization, and selective feature extraction and analysis. Batch IDAPS follows the normal conventions of card control and data input and output, and is best suited where the desired parameters and sequence of operations are known and when long image-processing times are required. Particular attention is given to the way in which this system has been used in solar astronomy and other investigations. Some recent results obtained by means of IDAPS are presented.
    Keywords: COMPUTER SYSTEMS
    Type: Applied Optics; 16; Apr. 197
    Format: text
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