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  • 1985-1989  (5)
  • 1
    Electronic Resource
    Electronic Resource
    Scintillator hodoscope system for a high intensity beam (1985)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 56 (1985), S. 1335-1339 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: In this paper the authors describe the construction and the operation of a scintillator hodoscope used in an intense beam. By using a fast scintillator (Pilot U), an XP1910 photomultiplier, and an appropriate electronic chain, a two-pulse separation of 6 ns per channel and a time resolution (σ) of 210 ps were obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138001
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Urinary cobalt as a measure of exposure in the hard metal industry (1985)
    Springer
    International archives of occupational and environmental health 57 (1985), S. 19-26 
    Details
    ISSN: 1432-1246
    Keywords: Cobalt ; Urinary ; Ambient air ; Relationship
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Twenty-six workers in a hard metal manufacturing plant were monitored by cobalt urinary and ambient air measurements during the first month after summer holidays. Cobalt determinations were performed utilizing AAS, with a preliminary chelation and extraction procedure for urinary samples. Almost all personal ambient air samples turned out to be under the cobalt dust TLV of 0.1 mg/m3. When restarting work after the holidays, urinary values did not differ from the control group. At the end of the first working week, urinary cobalt had increased four fold, then decreased to the original values on the following Monday before restarting work. Thereafter, the weekend was no longer sufficient to reduce the levels to normal urinary cobalt values. The values rose to the same level observed before the holidays, and dit not substantially decrease even after the weekend. End-shift urinary cobalt values showed a good relationship with present as well as with mean past exposure on the first and the fifth weekday, but the third day did not. The correlation was better with present exposure on Monday and with mean past exposure on Friday. The observed differences may be explained by the minor influence of recent exposure on present exposure on Monday. The highest values were found on Wednesday. We suggest the utilization of end-shift urinary cobalt determination as a measure of the present exposure on Monday, and of mean recent or preceding exposure on Friday.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00383542
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Annihilation and topological cross sections forpp and $$\bar p$$ p interactions at 200 GeV/c (1988)
    Springer
    The European physical journal 40 (1988), S. 29-39 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The results of an analysis of streamer chamber data from the NA5 experiment are presented. Topological cross sections forpp and $$\bar p$$ p interactions and strange neutral particle production at 200 GeV/c have been measured and ( $$\bar p$$ p−pp) difference cross sections have been determined. Multiplicity moments were calculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01559715
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Some aspects of grid corrosion in the lead-acid batteries (1985)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 36 (1985), S. 554-560 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Einige Aspekte der Gitterkorrosion in BleiakkumulatorenDie Korrosion von Elektrodengittern mit und ohne Pastenauftrag ist für verschiedene Bleilegierungen gravimetrisch und elektrochemisch untersucht worden. Die mit Pasten beschichteten Gitter wurden nach mehrtägiger Verweilzeit in Schwefelsäure (1,10-1,32 g cm3) analysiert; zusätzlich wurden auch Gitter in verschiedenen Stadien der Gitterherstellung und aus unterschiedlich lange gelagerten Proben untersucht.Die Korrosion der Bleilegierungsbleche wurde mittels zyklischer Voltammetrie, linearer Voltammetrie, potentiostatischer Untersuchungen und durch Messen des Fotostromes untersucht. Die Ergebnisse zeigen die Bedeutung der Konversionsbehandlung der Platten auf die anschließende Korrosion der Gitter. Antimonhaltige Gitter scheinen stärker korrosionsanfällig zu sein, als solche mit Blei, Zinn und Calcium. Im Falle von Streckgittern wird durch die mechanische Verformung die örtliche Korrosion sehr begünstigt. Außerdem wird die Korrosionsanfälligkeit bei abnehmender Schwefelsäuredichte wesentlich größer. Die unterschiedlichen Ergebnisse der verschiedenen Prüfmethoden werden erörtert.
    Notes: Corrosion of pasted and unpasted grids and of different lead alloys has been investigated by means of weight loss measurements and electrochemical tests. Pasted grids were analysed after several days immersion in sulphuric acid of different densities in the range 1.10-1.32 g cm-3. Some grids withdrawn from plates at various stages of manufacturing and from batteries stored for different times were also examined.Corrosion testing on lead-alloys sheet samples included cyclic voltammetry, linear sweep voltammetry, potentiostatic tests and photo-current measurements. The results evidenced the importance of the plates conversion process on subsequent corrosion of the grids. Antimonial grids appear to be more corrodible than lead-tin-calcium grids. Mechanical working greatly affects localized corrosion in the case of expanded grids. Corrodibility largely increases by decreasing the sulphuric acid density. Differences in the corrosion testing methods are discussed.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19850361203
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Sensitivity of Hemoccult test for large bowel cancer in high-risk subjects (1988)
    Springer
    Digestive diseases and sciences 33 (1988), S. 609-613 
    Details
    ISSN: 1573-2568
    Keywords: hemoccult ; colorectal cancer ; screening
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract From 1979 to 1982, 1233 symptom-free subjects at high risk for colon cancer because of family history and/or personal history of bowel neoplasia (cancer or adenomatous polyp) were examined with a guaiac test (Hemoccult II) for occult blood in stools. The test was positive (H+) in 98 subjects (7.9%). Endoscopy was subsequently performed on 86% of the H+ and on 64% of the H-subjects. Of 20 in invasive cancers found, 15 had been H+ [75.0%; 95% confidence interval (CI), 54.3–91.0%]. Of 96 patients with adenoma(s), 23 were H+ (24%; 95% CI, 16.0–33.0%). However, the sensitivity for adenomas was higher in patients with multiple adenomas or with a single adenoma measuring 2 cm or more in its largest diameter (37.5%; 95% CI, 21.8–54.7%). Of 699 subjects free of neoplastic lesions at endoscopy, 47 had been H+, ie, false positive (6.7%; 95% CI, 5.0–8.7%). Adjusting for differential compliance of H+ and H-subjects to endoscopy, a corrected estimate for sensitivity would be 69% for cancer and 19% for adenomas; the corrected estimate for the false-positive rate would be 5%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01798365
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    Paper (German National Licenses)
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