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  • 1995-1999  (12)
  • 1997  (12)
  • 1
    Electronic Resource
    Electronic Resource
    The minimum effective doses of pethidine and doxapram in the treatment of post-anaesthetic shivering (1997)
    Oxford : Blackwell Science Ltd
    Anaesthesia 52 (1997), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: This study was designed to find the minimum effective doses of doxapram and pethidine to stop post-anaesthetic shivering. Two hundred and twenty healthy patients who shivered following routine surgery were allocated randomly to receive one of 10 doses of doxapram (0.18, 0.23, 0.29, 0.35, 0.41, 0.47, 0.7, 0.93, 1.17 and 1.4 mg.kg−1), one of five doses of pethidine (0.12, 0.18, 0.23, 0.29 and 0.35 mg.kg−1) or saline. Probit analysis demonstrated that the number of patients who stopped shivering with doxapram was independent of the amount of drug given in this dose range. The lowest dose of doxapram (0.18 mg.kg−1) was significantly more effective than placebo (p 〈 0.01). For pethidine there was a dose-dependent effect on shivering to a maximum of 95% of patients successfully treated with 0.35 mg.kg−1. We conclude that 0.35 mg.kg−1 of pethidine is the minimum dose required to treat post-anaesthetic shivering effectively. We also conclude that 0.18 mg.kg−1of doxapram is as effective as 1.4 mg.kg−1 in the treatment of post-anaesthetic shivering. Further study is required to find the minimum effective dose of doxapram.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.1997.006-az006.x
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  • 2
    Electronic Resource
    Electronic Resource
    Influence of talc on the properties of polycarboxylate cement (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 24 (1997), S. 0 
    Details
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: summary Zinc oxide, the inorganic component of polycarboxylate cement, was mixed with talc in various proportions from 10% to 50%. These powder mixtures were spatulated with poly(acrylic acid) in three powder to liquid (P/L) ratios of 1:1, 1-5:1 and 2:1 (w/w). Properties such as setting time and compressive and diametral tensile strengths of the resultant cements were determined. It was observed that the setting time of the resultant cements increased with increasing talc content. The compressive and diametral tensile strengths also increased by approximately 54% with a 10% concentration of talc.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2842.1997.tb00264.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Zinc electrowinning from acidic sulfate solutions: Part I: Effects of sodium lauryl sulfate (1997)
    Springer
    Journal of applied electrochemistry 27 (1997), S. 673-678 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The effects of sodium lauryl sulphate(SLS) in the presence and absence of antimony(iii) on the current efficiency, power consumption and polarization behaviour of zinc were determined. The surface morphologies and deposit crystallographic orientations were also evaluated. The results were compared with glue as the addition agent. The addition of sodium lauryl sulfate to the zinc sulfate solution increased current efficiency, reduced power consumption and improved the surface morphology. Maximum current efficiency and minimum power consumption were achieved on addition of 0.02mgdm−3 Sb with 1mgdm−3 sodium lauryl sulfate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018431619595
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  • 4
    Electronic Resource
    Electronic Resource
    The effects of 4-ethylpyridine and 2-cyanopyridine on zinc electrowinning from acidic sulfate solutions (1997)
    Springer
    Journal of applied electrochemistry 27 (1997), S. 738-744 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The effects of 4-ethylpyridine and 2-cyanopyridine on the electrowinning of zinc in the presence and absence of antimony have been studied. The results are compared with those of a common industrial additive, gum arabic. Addition of either compound reduced current efficiency, increased power consumption and lowered the surface quality of electrodeposited zinc. Both the additives showed similar polarization behaviour to gum arabic. Addition of 0.04mgdm−3 antimony increased current efficiency, reduced power consumption and altered the surface morphology and crystallographic orientations. Combinations of antimony with 4-ethylpyridine resulted in very good current efficiencies, and zinc morphology and quality.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018452224138
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  • 5
    Electronic Resource
    Electronic Resource
    Biology and Biological Action of the Defensive Secretion from a Jamaican Millipede (1997)
    Springer
    Naturwissenschaften 84 (1997), S. 143-144 
    Details
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001140050364
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  • 6
    Electronic Resource
    Electronic Resource
    Thermal dispersion effects on non-Darcy natural convection over horizontal plate with surface mass flux (1997)
    Springer
    Archive of applied mechanics 67 (1997), S. 487-495 
    Details
    ISSN: 1432-0681
    Keywords: Keywords convection ; porous medium ; thermal dispersion ; diffusion ; boundary layer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary The effect of surface mass flux on the non-Darcy natural convection over a horizontal flat plate in a saturated porous medium is studied using similarity solution technique. Forchheimer extension is considered in the flow equations. The suction/injection velocity distribution has been assumed to have power function form Bx l , similar to that of the wall temperature distribution Ax n , where x is the distance from the leading edge. The thermal diffusivity coefficient has been assumed to be the sum of the molecular diffusivity and the dynamic diffusivity due to mechanical dispersion. The dynamic diffusivity is assumed to vary linearly with the velocity component in the x direction, i.e. along the hot wall. For the problem of constant heat flux from the surface (n=1/2), similarity solution is possible when the exponent l takes the value −1/2. Results indicate that the boundary layer thickness decreases whereas the heat transfer rate increases as the mass flux parameter passes from the injection domain to the suction domain. The increase in the thermal dispersion parameter is observed to favor the heat transfer by reducing the boundary layer thickness. The combined effect of thermal dispersion and fluid suction/injection on the heat transfer rate is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004190050133
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Electronic Transport Properties of Mn-Doped a-Se〈sub〉80-x〈/sub〉Te〈sub〉20〈/sub〉Zn〈sub〉x〈/sub〉 System (1997)
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 55 (Aug. 1997), p. 110-112 
    Details
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/25/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.55.110.pdf
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  • 8
    Electronic Resource
    Electronic Resource
    Thermal dispersion effects on non-Darcy natural convection with lateral mass flux (1997)
    Springer
    Heat and mass transfer 33 (1997), S. 1-5 
    Details
    ISSN: 1432-1181
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The method of similarity solution is used to study the influence of lateral mass flux and thermal dispersion on non-Darcy natural convection over a vertical flat plate in a fluid saturated porous medium. Forchheimer extension is considered in the flow equations and the coefficient of thermal diffusivity has been assumed to be the sum of molecular diffusivity and the dispersion thermal diffusivity due to mechanical dispersion. The suction/injection velocity distribution has been assumed to have power function form Ax l , where x is the distance from the leading edge and the wall temperature distribution is assumed to be uniform. When l=−1/2, similarity solution is possible, and the results indicate that the boundary layer thickness decreases where as the heat transfer rate increases as the mass flux parameter passes from injection domain to the suction domain. The increase in the thermal dispersion parameter is observed to enhance the heat transfer. The combined effect of thermal dispersion and fluid suction/injection on the heat transfer rate is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002310050155
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  • 9
    Electronic Resource
    Electronic Resource
    Integral solution for Forchheimer free convection over a horizontal flat surface (1997)
    Springer
    Heat and mass transfer 32 (1997), S. 207-211 
    Details
    ISSN: 1432-1181
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Description / Table of Contents: Zusammenfassung  In der Arbeit wird die Freie Konvektion über einer horizontalen, ebenen Platte, die in ein vollständig getränktes poröses Medium eingebettet ist, mittels einer Integralmethode für den Fall konstanten Wärmeflusses von der Oberfläche untersucht, wobei ein nicht-Darcy–Modell zugrunde liegt. Effekte infolge thermische Dispersion finden Berücksichtigung. Zwischen der dispersionsbedingten Temperaturleitfähigkeit und den Geschwindigkeitskomponenten wird die bekannte lineare Beziehung unterstellt. Für Geschwindigkeits- und Temperaturverteilung werden Exponentialprofile angenommen. Die Nusselt–Zahlen, berechnet nach der vorgestellten Methode und nach der bekannten Ähnlichkeitslösung, stimmen gut überein.
    Notes: Abstract  The aim of the present paper is to study the non-Darcy free convection from a horizontal flat surface in a fluid saturated porous medium using integral method for the case when the heat flux from the surface remains constant. The thermal dispersion effects are taken into consideration. The linear relation between the dispersion thermal diffusivity and the streamwise velocity component has been adopted. Exponential profiles are choosen for the velocity and temperature distributions. The Nusselt number results are in good agreement with the existing similarity solution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002310050113
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  • 10
    Electronic Resource
    Electronic Resource
    Free convection heat and mass transfer along a vertical surface in a porous medium (1997)
    Springer
    Acta mechanica 123 (1997), S. 69-73 
    Details
    ISSN: 1619-6937
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary This study deals with free convection heat and mass transfer from a vertical plate embedded in a fluid saturated porous medium with constant wall temperature and concentration. The temperature and concentration variations across the boundary layer produce a buoyancy effect which gives rise to flow field. Integral method of Von-Karman type is applied to obtain the analytical solution of this fundamental problem.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01178401
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