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  • 1
    Electronic Resource
    Electronic Resource
    Alkylene bisdithiocarbamates as complexing agents for the preconcentration of trace metals in aquatic samples
    Amsterdam : Elsevier
    Analytica Chimica Acta 282 (1993), S. 221-225 
    Details
    ISSN: 0003-2670
    Keywords: Alkylene bisdithiocarbamates ; Preconcentration ; Sampler preparation ; Sea Water ; Trace metals ; Waters
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0003-2670(93)80372-R
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Interaction terms in gas-solid two-phase flows (1973)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: From both experimental data and theoretical results of the two-phase flow, the complete expression of the interaction force between a gas and solid particles at low Reynolds number flow is obtained. The interaction force contains two terms: one is proportional to the difference between the velocities of the gas and the solid particle with a coefficient as a function of volume fraction Z and the other is proportional to the product of the total pressure of the mixture and the gradient of solid volume fraction. The second term is new. When Z tends to 0, the completion expression of interaction force reduces to the well-known Stokes formula.
    Keywords: FLUID MECHANICS
    Type: Zeitschrift fuer Flugwissenschaften; 21; Dec. 197
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Numerical solution of laminar jet mixing with and without free stream (1969)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Systematic numerical analysis of two dimensional and axisymmetric laminar jet of incompressible fluid with and without free stream
    Keywords: FLUID MECHANICS
    Type: NASA-CR-111517 , BN-627 , AD-710232
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    One dimensional lunar ash flow with and without heat transfer (1971)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The characteristics of lunar ash flow are discussed in terms of the two phase flow theory of a mixture of a gas and small solid particles. A model is developed to present the fundamental equations and boundary conditions. Numerical solutions for special ash flow with and without heat transfer are presented. In the case of lunar ash flow with small initial velocity, the effect of the heat transfer makes the whole layer of ash flow more compacted together than the corresponding isothermal case.
    Keywords: FLUID MECHANICS
    Type: NASA-CR-130697 , BN-718
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Numerical solution of laminar jet mixing with and without free stream. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: Systematic numerical solutions of two-dimensional and axisymmetrical laminar jet of an incompressible fluid with and without free stream have been obtained. For the case without free stream, the exact numerical solutions have been obtained for different initial velocity profiles and compared with experimental results and similarity solutions. For the case with free stream, the numerical solutions have been compared with the linearized analytical solutions. An approximate numerical solution for the axial velocity distribution of the three-dimensional laminar jet is proposed. The accuracy of the method has been determined from the exact solutions of the two limiting cases of three-dimensional jets, i.e., the two-dimensional and axisymmetric cases.
    Keywords: FLUID MECHANICS
    Type: Applied Scientific Research; 27; Oct. 197
    Format: text
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    NASA TECHNICAL REPORTS
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