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  • 2000-2004  (4)
  • 1965-1969  (19)
  • 1935-1939  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Configurational Relationships among Sulfinyl Amino Acids (1965)
    s.l. : American Chemical Society
    The @journal of organic chemistry 30 (1965), S. 951-952 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo01014a513
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The floating potential of cylindrical Langmuir probes (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 8 (2001), S. 5051-5052 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The floating potential of a cylindrical probe is computed numerically, and the results are fitted to analytic functions. They differ significantly from the plane approximation. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1409346
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A floating potential method for measuring ion density (2002)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 9 (2002), S. 1449-1455 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A simple method for analyzing cylindrical Langmuir probe curves in a cold-ion plasma is described which yields the ion density in weakly collisional plasmas for which purely collisionless theories give erroneous results. The method is based on an extrapolation to the floating potential of the saturation ion current raised to the 4/3 power. This procedure is not supported by theory but apparently works because effects neglected in the theory tend to cancel. © 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1462630
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Langmuir probe analysis for high density plasmas (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 8 (2001), S. 3029-3041 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: High-density, radio-frequency plasmas used in semiconductor processing have progressed to densities n≥5×1011 cm−3, where the methods used to interpret Langmuir probe characteristics in low-density (109–11 cm−3) plasma reactors are no longer valid. Though theory and computations for arbitrarily dense collisionless plasmas exist, they are difficult to apply in real time. A new parametrization and iteration scheme is given which permits rapid analysis of Langmuir probe data using these theories. However, at high n, measured ion saturation curves are shown which do not agree in shape with the "correct" theory, yielding anomalously high values of n. The discrepancy with independent measures of n, which can exceed a factor of 2, is believed to be caused by charge-exchange collisions well outside the sheath. Probe designs for avoiding this discrepancy are suggested. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1368874
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Collisional, magnetic, and nonlinear skin effect in radio-frequency plasmas (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 8 (2001), S. 3008-3017 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The penetration of radio-frequency energy into cylindrical devices is relevant to the production of uniform plasmas for etching and deposition processes in the production of semiconductor circuits. The so-called "anomalous skin effect" has been invoked to explain irregularities not predicted by classical electromagnetic theory. These expectations are summarized for the collisionality regimes of interest, and new results are given for nonkinetic effects caused by small direct current magnetic fields and the ponderomotive force. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1367322
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Choline acetyltransferase inhibitors. Configurational and electronic features of styrylpyridine analogs (1969)
    s.l. : American Chemical Society
    Journal of medicinal chemistry 12 (1969), S. 134-138 
    Details
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jm00301a034
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Ultraviolet Microscopy of Hevea Rubber Latex (1938)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 30 (1938), S. 146-153 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie50338a007
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Quantitative Methods for Anthocyanins. 4. Determination of Individual Anthocyanins in Cranberry and Cranberry Products (1968)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 33 (1968), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: SUMMARY– A new method was developed to determine the quantities of the four major anthocyanins in cranberry and cranberry products. The pigments were streaked on Whatman No. 1 paper and separated by multiple ascending chromatography with 1-butanol-benzene-formic acid-water (100:19: 10:25). The individual bands were measured by transmission densitometry at 525 nm. The ratio of individual pigments was calculated from the densitometric peak areas. The linearity of densitometric response for anthocyanins was established. The amount of each individual anthocyanin present was calculated from the total anthocyanin content and the ratio of individual anthocyanins. The reproducibility of the methods was 6% for the two arabinosides and 4 to 5% for the two galactosides expressed as the coefficient of variability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1968.tb03658.x
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  • 9
    Electronic Resource
    Electronic Resource
    Quantitative Methods for Anthocyanins. (1968)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 33 (1968), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: SUMMARY— The method developed consists of extracting the anthocyanins with ethanol-1.5N hydrochloric acid (85:15) and measuring the O.D. of the extract, diluted with the extracting solvent, at 535 nm. The total anthocyanin content was calculated in absolute quantities with the aid of the extinction coefficients established for the four major cranberry anthocyanins dissolved in the alcoholic solvent system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1968.tb00887.x
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  • 10
    Electronic Resource
    Electronic Resource
    Quantitative Methods for Anthocyanins. (1968)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 33 (1968), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: SUMMARY— The method developed for total anthocyanin determination involves the measurement of the absorbance at 510 nm on samples diluted with pH 1.0 and 4.5 buffers. The pigment content is calculated in absolute quantities with the aid of extinction coefficients established for the cranberry anthocyanins dissolved in the buffers. An index of anthocyanin degradation, based on a new concept, could be calculated from the measurements obtained for the total anthocyanin determinations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1968.tb00888.x
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    Paper (German National Licenses)
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