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  • Chemistry  (563)
  • GEOPHYSICS  (165)
  • EARTH RESOURCES AND REMOTE SENSING  (48)
  • SPACECRAFT DESIGN, TESTING AND PERFORMANCE  (46)
  • 1985-1989  (822)
  • 1988  (822)
Collection
Keywords
Publisher
Years
  • 1985-1989  (822)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Large-scale production of monoclonal antibodies in suspension culture (1988)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 32 (1988), S. 993-1000 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Monoclonal antibodies are being manufactured for clinical trials in suspension culture at the 1300-L scale. Suspension culture offers some advantages relative to high-density mammalian cell culture methods; in particular, the ability to closely monitor the behavior of cells in a homogeneous environment. Computer control and on-line mass spectrography of exit gases provide instantaneous information about the culture metabolic activity. Air sparging and agitation by marine impeller provide aeration sufficient to maintain a constant dissolved oxygen tension at cell concentrations up to 5.0 × 106 cells/mL without causing apparent cell damage.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260320807
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A microfibril-generating factor from the cellulase of Trichoderma reesei (1988)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 31 (1988), S. 321-327 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A combination of ionic strength reduction and diafiltration of Trichoderma reesei cellulate complex through a hollow fiber apparatus of 5000 molecular weight (MW) cutoff and subsequent passage of filtrate over a Spherogel-TSK 3000-SW column provided extracts that had the ability to generate microfibrils in filter paper and to disrupt filter paper and corn leaf tissue. Milligram quantities of material obtained from these extracts released small amounts of soluble carbohydrate from filter paper, required ferric iron for increased activity, and contained amino acids. Short fiber formation and disruption of filter paper during interaction with these extracts was enhanced by prior acid treatment and eliminated by prior base treatment. The amount of soluble carbohydrate hydrolyzed in 24 h from filter paper by whole cellulase complex was not changed by first disrupting the substrate with the extracts.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260310407
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  • 3
    Electronic Resource
    Electronic Resource
    Recent advances in free radical ring-opening polymerizationInvited Lecture at the 31st IUPAC Macromolecular Symposium, June 30th-July 4th, 1987, in Merseburg, German Democratic Republic (1988)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 39 (1988), S. 335-341 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Durch die Synthese von cyclischen Acrylaten wurde eine Reihe von Monomeren erhalten, die hohe Reaktivitäten der Copolymerisation bei gleichzeitiger Fähigkeit zur radikalischen Ringöffnungspolymerisation aufweisen. Sie wurden polymerisiert, um einen Pyruvatester in die Polymerkette einzuführen. Eine Reihe von Spiromethylencyclohexadienen wurde hergestellt, um neben der Carbonylgruppe und gespannten Ringen weitere Gruppen zu finden, die die radikalische Ringöffnungspolymerisation fördern. Bei ihrer Polymerisation wurden Polymere mit einer p-Phenylengruppe in der Kette erhalten.
    Notes: In order to find a series of monomers with high reactivities in copolymerization and still undergo free radical ringopening polymerization, a series of cyclic acrylates were synthesized and polymerized to insert a pyruvate ester into the backbone of the polymer. In order to discover groups other than the carbonyl groups and strained rings that would promote free radical ring-opening polymerization, a series of spiro methylenecyclohexadienes were prepared and polymerized to give a polymer with a p-phenylene group in the backbone.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1988.010390702
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  • 4
    Electronic Resource
    Electronic Resource
    The effect of the applied field on the electrical properties of metal polymer composites (1988)
    Brookfield, Conn. : Wiley-Blackwell
    Polymer Composites 9 (1988), S. 139-143 
    Details
    ISSN: 0272-8397
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The effect of filler content and applied electrical field on the electrical resistivity of poly(methyl methacrylate) (PMMA) filled with aluminum particles was investigated. The resistivity of such composite suddenly decreases by several orders of magnitude at a critical volume concentration φc. In addition, for filler contents lower than φc, the PMMA/Al composite undergoes a transition from a high to a low resistance material in correspondence of a critical value of the external applied electrical field. This value has been related to thermal breakdown occurring in the regions between conductive particles. Moreover, the permittivity spectrum as a function of frequency is reported for composites of several filler contents, and the Lal and Parshad law was used to correlate the experimental data.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pc.750090207
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  • 5
    Electronic Resource
    Electronic Resource
    Analyse Vibrationnelle et Structurale en Série Aliphatique Saturee. VIIIPour l'article VII dans cette série, voir J. L. Delarbre, L. Maury et L. Bardet, J. Raman Spectrosc. 16, 288 (1985). - Spectres de Vibration de l'acide Glutarique et de ses Sels Alcalins en Solution Aqueuse (1988)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 19 (1988), S. 167-174 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The Raman and infrared spectra of glutaric acid, (CH2)3[COOH(D)]2, and its potassium salts, CH2)3(COO2KHD and CH23COO2K2, in aqueous solution have been investigated in the range 3500-200 cm-1. The analysis of the polarization ratio of the Raman lines indicated that glutaric acid belongs to point group C1 whereas its ions belong to point group Cs. An assignment of the fundamental vibrations is proposed.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250190305
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  • 6
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    Particle acceleration and wave emissions associated with the formation of auroral cavities and enhancements (1988)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: A unified model is presented which interrelates the various processes involved in auroral particle acceleration and the associated wave emissions, and it is shown how energy is coupled from the magnetosphere into the ionosphere. The phenomena in the magnetotail which can provide the source of free energy for the perpendicular electrostatic shocks are identified along with the associated potential structures in the nightside auroral region. The characteristics of the particle acceleration produced by the shock are described, including efficiency and energy transport between magnetospheric and ionospheric plasmas, the properties of the particle distributions throughout the shock region and return current regions, and the associated wave emissions. The source of free energy for the generation of ion conics is identified, as are the signatures for the formation of plasma cavities and/or enhancements.
    Keywords: GEOPHYSICS
    Type: Journal of Geophysical Research (ISSN 0148-0227); 93; 14567-14
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    The solar dynamic radiator with a historical perspective (1988)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A historical perspective on pumped-fluid loop space radiators provides a basis for the design of the Space Station Solar Dynamic (SD) power module radiator. SD power modules, capable of generating 25 kW (electrical) each, are planned for growth in Station power requirements. The Brayton cycle SD module configuration incorporates a pumped-fluid loop radiator that must reject up to 99 kW (thermal). The thermal/hydraulic design conditions in combination with required radiator orientation and packaging envelope form a unique set of constraints as compared to previous pumped-fluid loop radiator systems. Nevertheless, past program successes have demonstrated a technology base that can be applied to the SD radiator development program to ensure a low risk, low cost system.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: NASA-TM-100972 , E-4265 , NAS 1.15:100972 , Intersociety Energy Conversion Engineering Conference; Jul 31, 1988 - Aug 05, 1988; Denver, CO; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
    Electronic Resource
    Electronic Resource
    Specificities of low-temperature heat capacity of mechanical mixture of desoxynucleotides and DNA (1988)
    New York : Wiley-Blackwell
    Biopolymers 27 (1988), S. 1859-1862 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.360271113
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  • 9
    Electronic Resource
    Electronic Resource
    Weighted intrinsic viscosity relationships for polysaccharide mixtures in dilute aqueous solutions (1988)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 35 (1988), S. 1631-1637 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The weighted intrinsic viscosities of polysaccharide mixtures in dilute aqueous solutions have been studied. The purpose of this investigation is to demonstrate that average intrinsic viscosities would scale with the weight fraction of the individual components for polysaccharide mixtures in 0.5N NaOH(aq). The polysaccharides examined in this study were composed of polymers differing in their molecular weights, degree of branching, and bond linkages. Excellent agreement between theory and experiment was observed for the three different mixed polymer systems examined. This observation validates certain aspects of proposed theoretical treatments which employ this fundamental assumption and allows for further advances in experimental analytical developments of water-soluble polymer systems.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1988.070350618
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  • 10
    Electronic Resource
    Electronic Resource
    Electrophoretic, dynamic, and static light scattering on charged polymer emulsions (1988)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 35 (1988), S. 1377-1397 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Light scattering studies on dispersions formed by phase separation of a polymer-solvent-non-solvent mixture show that the dispersions comprise charged droplets of the polymer-rich phase. The charge number is not large, and data on the electrophoretic-scattering and the dynamic scattering in the absence of an external electric field are both consistent with distribution of charge among the droplets. Data on the dependence of the static scattering on concentration and scattering angle show that the droplets are also disperse in radius. The data are discussed in terms of an interaction potential among the charged droplets relating the electrostatic interactions to the charge number and radius of the droplets, and the ionic strength of the solvent.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1988.070350522
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