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  • Organic Chemistry  (25)
  • Chemical Engineering  (15)
  • GENERAL  (11)
  • 1960-1964
  • 1955-1959  (51)
  • 1945-1949
  • 1925-1929
  • 1955  (51)
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Erscheinungszeitraum
  • 1960-1964
  • 1955-1959  (51)
  • 1945-1949
  • 1925-1929
Jahr
  • 1
    Digitale Medien
    Digitale Medien
    Stoffwechselprodukte von Actinomyceten. 1. Mitteilung. Narbomycin (1955)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 38 (1955), S. 935-942 
    Details
    ISSN: 0018-019X
    Schlagwort(e): Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Aus dem Kulturfiltrat von Streptomyces narbonensis n. sp. wurde ein neues lipophiles kristallines basisches Antibioticum C28H47O7N, das Narbomycin, isoliert.
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/hlca.19550380412
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Stoffwechselprodukte von Actinomyceten. 3. Mitteilung. Nonactin (1955)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 38 (1955), S. 1445-1448 
    Details
    ISSN: 0018-019X
    Schlagwort(e): Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Aus Kulturfiltrat und Mycel eines Streptomyces viridochromogenes oder Streptomyces olivochromogenes nahestehenden Streptomyceten wurde neben Actidion eine neutrale, farblose, kristalline Verbindung C30H48O9, das Nonactin, isoliert, die chemisch wenig reaktiv ist und gegenüber den untersuchten Mikroorganismen unwirksam oder nur schwach wirksam war.
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/hlca.19550380617
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Stoffwechselprodukte von Actinomyceten. 2. Mitteilung. Angolamycin (1955)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 38 (1955), S. 1202-1209 
    Details
    ISSN: 0018-019X
    Schlagwort(e): Chemistry ; Organic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Aus dem Kulturfiltrat von Streptomyces eurythermus n. sp. konnte ein neues lipophiles kristallines basisches Antibioticum C50±1H89±2O18N, das Angolamycin, isoliert werden.
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/hlca.19550380515
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 4
    facet.materialart.
    Unbekannt
    External-store drag reduction at transonic and low supersonic Mach numbers by application of Baldwin's moment-of-area rule (1955)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-16
    Schlagwort(e): GENERAL
    Materialart: NACA Conf. on Aerodyn. of High Speed Aircraft; p 93-103
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
    Digitale Medien
    Digitale Medien
    Diffusion coefficients in hydrocarbon systems: n-Hexane in the gas phase of the methane - , ethane - , and propane - n-hexane systems (1955)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 1 (1955), S. 385-390 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Experimental information concerning the molecular transport of the lighter hydrocarbons in the gas phase is limited. For this reason a study was made of the Maxwell diffusion coefficients of n-hexane in the gas phase of the methane-n-hexane, and propane-n-hexane systems.Maxwell diffusion coefficients were determined at steady state for pressures up to 70 lb./sq. in. at temperatures between 70° and 220° F. The effects of interfacial resistance were considered and uncertainties as to the behavior at the end of the transport path were eliminated. Coefficients were reported with partial pressure and with fugacity as the potential. Fick diffusion coefficients were calculated for each component on the assumption that the gas phase was an ideal solution.These data indicated that the Maxwell hypothesis with fugacity as the potential in an ideal solution is a fair description of the transport characteristics of the lighter hydrocarbons in the gas phase at relatively low pressures. A regular decrease in the Maxwell diffusion coefficient with an increase in the molecular weight of the stagnant component was observed.
    Zusätzliches Material: 6 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690010318
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    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    Transport of momentum and energy in a ducted jet: III. Correlation of profiles of total momentum and energy flux in a nonisothermal jet discharging into a duct (1955)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 1 (1955), S. 69-73 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: The data in the first paper of this series on the distribution of momentum and energy in nonisothermal air streams mixing in a straight duct were correlated by the methods described in the second paper. Mixing indexes were evaluated and used to correlate profiles of total momentum and stagnation temperature at various sections of the duct.
    Zusätzliches Material: 4 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690010110
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    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Transport of momentum and energy in a ducted jet: I. Experimental study of a nonisothermal jet of air discharging into a duct (1955)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 1 (1955), S. 55-61 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: A heated jet of air from an 0.898-in. standard A.S.M.E. nozzle was discharged into a 4-in. steel duct, well insulated over its entire 10-ft. length. Air from the region surrounding the nozzle was entrained into the duct. At a number of points along the duct, radial profiles of air velocity and temperature were obtained by means of a probe which combined an impact tube and a thermocouple. The temperature at each of several points along the duct wall was indicated by thermocouples imbedded in the wall.In the experiments reported here the velocity at the jet was 585 ft./sec.; the temperature of the jet was about 220°F. and that of the entrained air was about 88°F. The total air flow rate through the duct was 0.67 lb./sec., and the heat flux was 4.9 B.t.u./sec., with the temperature of the entrained air taken as the datum.The radial and axial profiles of velocity and temperature are compared and discussed; the temperatures of the stream near the duct wall and of the duct wall itself are given. Conservation of mass and heat was checked by graphical integration of the radial profiles.
    Zusätzliches Material: 15 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690010108
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    Transport of momentum and energy in a ducted jet: II. Theoretical study of turbulent transport of momentum, energy, and matter in ducted coaxial streams (1955)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 1 (1955), S. 61-69 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: This paper concerns the kinetics of the processes that take place when a high-velocity jet of fluid mixes turbulently with a low-velocity, induced stream of the same fluid in a duct of uniform diameter. Semi-two-dimensional solutions of the equations of transport involving two empirical coefficients were obtained by application of Reichardt's hypothesis and three assumptions: (a) a negligible fraction of the flow entity (energy, mass, or momentum) is lost at the wall and the presence of the boundary layer may be ignored, (b) the static pressure is uniform over a section of the duct, and (c) the turbulence pattern is similar to that in free jets except that the duct wall limits the growth of the scale of the turbulence. A mixing index, which is a measure of the degree to which the jet stream remains unmixed with the induced stream at any point, was defined and related to the geometry of the system and the flow parameters by means of the theoretical equation, and a method of evaluating the empirical coefficients for a typical case of momentum transport was described.
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690010109
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    Laws of corresponding states (1955)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 1 (1955), S. 74-77 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: Various laws of corresponding states are examined briefly in this paper to show the corrections that are in common use to increase the accuracy of forecasting compressibility factors. Two trends are noticeable: (I) the use of specific compressibility charts with the results generalized for all gases either by corrections related to z (the compressibility factor at the critical point) or by the use of pseudocritical properties and (2) the use of a true generalized chart based upon averaged data. It is shown that the selection of the plot parameters affects the accuracy of the generalized chart. In recent years reduced parameters based upon kinetic theory have been proposed but for a restricted class of gases (nonpolar gases with spherically symmetrical molecules and negligible quantum effects). It is shown that the kinetic parameters are directly related to the critical constants and also that the kinetic parameter charts can be used for all gases without serious loss of accuracy.
    Zusätzliches Material: 1 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690010111
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    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    Kinetics of the catalyzed and uncatalyzed liquid-phase hydration of propylene oxide (1955)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 1 (1955), S. 118-124 
    Details
    ISSN: 0001-1541
    Schlagwort(e): Chemistry ; Chemical Engineering
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: The kinetics of the catalytic and noncatalytic hydration of propylene oxide were studied in a continuous reactor. Both the catalytic and noncatalytic reaction were studied over a temperature range of 100° to 300°F. The feed ratios ranged from 2.5 to 10 lb. water/lb. propylene oxide. In the case catalytic reaction, the catalyst concentration of sulfuric acid ranged up to 0.25 wt. % of the total feed.The study showed the noncatalytic reaction to be pseudo first order with respect to propylene oxide, and an equation was found for the rate constant. The catalytic reaction was found to be pseudo second order with respect to propylene oxide, and the effect of the catalyst concentration is shown graphically.
    Zusätzliches Material: 12 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/aic.690010118
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
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