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  • Chemical Engineering  (2)
  • Humans  (2)
  • Inorganic and Physical Chemistry  (2)
  • 2020-2021
  • 1995-1999  (5)
  • 1985-1989  (1)
  • 1975-1979
  • 1960-1964
  • 1
    Electronic Resource
    Electronic Resource
    Binomial distribution in multistage extraction processes (1997)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 43 (1997), S. 2146-2147 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690430823
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Finite-element analysis of Taylor flow (1996)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 42 (1996), S. 1815-1823 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A finite-element analysis of Taylor flow in a cylindrical capillary was performed using a commercial FEM program (FIDAP) to solve the fundamental fluid dynamics equations together with the capillary forces at the gas-liquid interface. A moving-surface formulation was used to calculate the bubble shape. The thickness of the liquid film surrounding the gas bubble, the degree of mixing in the liquid phase, and the slip velocity between the two phases were calculated. These parameters influence the performance of monolith reactors operating in the Taylor flow regime. On comparison with experimental results it was found that the FEM calculation generally predicts a thinner liquid film, which can possibly be explained in terms of a peripheral variation in surface tension. Moreover, the wavelength of the wiggles predicted in the liquid film near the tail end of the bubble was compared to those arising from a simplified mathematical analysis available in the literature. Good agreement was found for Ca 〈 0.005, while for higher Ca the FEM predicts significantly shorter wavelengths, indicating that the lubrication theory is not valid here.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690420703
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  • 3
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    Kaposi's sarcoma-associated herpesvirus infection of bone marrow dendritic cells from multiple myeloma patients (1997)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1997-06-20
    Description: Kaposi's sarcoma-associated herpesvirus (KSHV) was found in the bone marrow dendritic cells of multiple myeloma patients but not in malignant plasma cells or bone marrow dendritic cells from normal individuals or patients with other malignancies. In addition the virus was detected in the bone marrow dendritic cells from two out of eight patients with monoclonal gammopathy of undetermined significance (MGUS), a precursor to myeloma. Viral interleukin-6, the human homolog of which is a growth factor for myeloma, was found to be transcribed in the myeloma bone marrow dendritic cells. KSHV may be required for transformation from MGUS to myeloma and perpetuate the growth of malignant plasma cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rettig, M B -- Ma, H J -- Vescio, R A -- Pold, M -- Schiller, G -- Belson, D -- Savage, A -- Nishikubo, C -- Wu, C -- Fraser, J -- Said, J W -- Berenson, J R -- New York, N.Y. -- Science. 1997 Jun 20;276(5320):1851-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematology and Oncology, Veterans Affairs West Los Angeles Medical Center, Los Angeles, CA 90073, USA. RETTIG.MATTHEW@WEST-LA.VA.GOV〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9188529" target="_blank"〉PubMed〈/a〉
    Keywords: Blotting, Southern ; Bone Marrow/pathology/*virology ; Cell Transformation, Neoplastic ; DNA, Viral/analysis ; Dendritic Cells/*virology ; HL-60 Cells ; Herpesvirus 8, Human/genetics/isolation & purification/*pathogenicity/physiology ; Humans ; In Situ Hybridization ; Interleukin-6/*analysis/genetics/physiology ; Multiple Myeloma/pathology/*virology ; Paraproteinemias/pathology/virology ; Polymerase Chain Reaction ; Stromal Cells/pathology/virology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 4
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    Deficient vasoactive intestinal peptide innervation in the sweat glands of cystic fibrosis patients (1985)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1985-09-27
    Description: The innervation of acini and ducts of eccrine sweat glands by immunoreactive, vasoactive intestinal peptide-containing nerve fibers was sharply reduced in seven patients with cystic fibrosis compared to eight normal subjects. The decrease in innervation by this neuropeptide, which has been shown to promote blood flow and the movement of water and chloride across epithelial surfaces in other systems, may be a basic mechanism for the decreased water content and relative impermeability of the epithelium to chloride and other ions that characterize cystic fibrosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Heinz-Erian, P -- Dey, R D -- Flux, M -- Said, S I -- HL30450/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1985 Sep 27;229(4720):1407-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/4035357" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Aged ; Chlorides/metabolism ; Cystic Fibrosis/*physiopathology ; Female ; Humans ; Male ; Middle Aged ; Sweat Glands/*innervation/physiopathology ; Vasoactive Intestinal Peptide/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Effects of Gravity on Sheared and Nonsheared Turbulent Nonpremixed Flames (1997)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The present numerical study is concerned with the fundamental physics of the multi-way interaction between turbulence, chemical reaction and buoyancy in a nonpremixed flame. The method of direct numerical simulation (DNS) is used to solve the instantaneous three-dimensional governing equations (continuity, Navier-Stokes, species mass fractions and energy) under the zero-Mach number assumption. Because of the present supercomputer limitations, we consider two simple flow geometries, namely an initially uniform flow without shear (equivalent to grid-generated turbulence) and an initially uniform shear flow. In each flow, the fuel and oxidant initially exist as two separate streams. As the reactants mix, chemical reaction takes place and exothermic energy is released causing variations in density. In the presence of a gravity field, the spatial and temporal distributions of the induced buoyancy forces depend on the local density gradients and the direction of the gravitational acceleration.
    Keywords: Inorganic and Physical Chemistry
    Type: Fourth International Microgravity Combustion Workshop; 173-178; NASA-CP-10194
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    NASA TECHNICAL REPORTS
  • 6
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    Method for Trace Oxygen Detection (1997)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Trace levels of molecular oxygen are measured by introducing a gas containing the molecular oxygen into a target zone, and impacting the molecular oxygen in the target zone with electrons at the O(-) resonant energy level for dissociative electron attachment to produce O(-) ions. Preferably, the electrons have an energy of about 4 to about 10 eV. The amount of O(-) ions produced is measured, and is correlated with the molecular oxygen content in the target zone. The technique is effective for measuring levels of oxygen below 50 ppb. and even less than 1 ppb. The amount of O(-) can be measured in a quadrupole mass analyzer. Best results are obtained when the electrons have an energy of about 6 to about 8 eV. and preferably about 6.8 eV. The method can be used for other species by selecting the appropriate electron energy level.
    Keywords: Inorganic and Physical Chemistry
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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