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  • ASTRONOMY  (12)
  • AEROSPACE MEDICINE  (10)
  • Polymer and Materials Science  (6)
  • 1
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Biopolymers 11 (1972), S. 1973-1984 
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Measurements of the frequency and pH dependence of acoustic absorption at 0°C in aqueous solutions of freshly prepared bovine oxyhemoglobin are reported. The role of ionization and possible direct proton-transfer between proximal pairs in determining the characteristic times for the relaxation of the internal charge distribution is discussed. It is concluded that treatments which consider various classes of residues as ionizing independently will not give approximately correct relaxation spectra. A model which takes into account the coupling between the degrees of ionization of the various residues is found to give rough agreement with the observed acoustic absorption in the pH range in which the native conformation is stable.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 8 (1964), S. 889-896 
    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 relative inhibitory effects of hexene-1, hexyne-1, trans-hexene-2, cis-hexene-2, hexyne-2, 1,5-hexadiene, 1,5-hexadiyne, 1,7-octadiyne, 1,8-octadiyne, 1-hexen-5-yne, 4-chloro-1,2-butadiene, chloroprene, 2,5-dimethyl-2,4-hexadiene, 2,4-hexadiyne, 2-methyl-1-buten-3-yne, styrene, ethynylbenzene, hydroquinone, and p-methoxyphenol on the bulk polymerization of vinyl acetate were measured. Polymerization was carried out at 70°C. in a test tube in the presence of benzoyl peroxide. A comparison was made of the magnitude of the inhibitory effect due to isolated and conjugated, double and triple bonds as well as cumulative double bonds. A brief comparison between aliphatic and aromatic compounds was also made.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 9 (1965), S. 777-784 
    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: A method has been developed to show the effect of temperature, catalyst level, resin advancement, and water content on the cure rate of phenolic resins by DTA. This DTA procedure allows for quantitative measurement of the phenolic resins cure exotherm.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0142-2421
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: The blister test is applied to the type of thin-film structures used in microelectronic packaging. The main advantage of this test is that most of the energy expended is responsible for interfacial fracture, allowing the determination of a fracture energy that closely represents the true interfacial adhesion strength between a thin film and a rigid substrate. It has been proved quantitatively that surface modification contributes to enhanced adhesion. It is found that the critical pressure at which debonding occurs does not correlate with the fracture energy measured in the blister test. Reproducibility of the fracture energy is exceptionally good and allows determination of the optimal thermal condition for promoting adhesion of polyimide on silicon surfaces.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Fire and Materials 18 (1994), S. 211-220 
    ISSN: 0308-0501
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Architecture, Civil Engineering, Surveying , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: This paper presents a closed-form solution with empirical adjustments to predict the time-temperature profile across a lumber section when the exposure history of its surface is known. The formulation is based on the two-dimensional heat-conduction equation that includes the effects of moisture evaporation and pyrolysis of wood. The kinetic constants and adjustment factors needed in the model were estimated from the temperature profile test data of dimension lumber and other published sources. This technique offers a simple practical means to estimate the internal temperatures of structural lumber exposed to high temperatures, and has been effectively implemented in the analyses of protected wood assemblies exposed to fire situations.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-1: Polymer Chemistry 8 (1970), S. 1419-1426 
    ISSN: 0449-296X
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A series of polycarbonates with pendent ester groups have been synthesized. These ester groups have been converted to hydroxyl functionalities by reduction with diborane in tetrahydrofuran. The number of methylene groups in the pendent chain has a large effect on the reducibility of the ester.
    Additional Material: 2 Ill.
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  • 7
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    In:  Other Sources
    Publication Date: 2011-08-19
    Description: An inspection of 34 SRC/ESO J southern sky fields is the basis of the present list of clusters of galaxies and their approximate classifications in terms of cluster concentration, defined independently of richness and shape-symmetry. Where possible, an estimate of the cluster morphological population is provided. The Bautz-Morgan classification was applied using a strict comparison with clusters on the Palomar Sky Survey. Magnitudes were estimated on the basis of galaxies with photoelectric or photographic magnitudes.
    Keywords: ASTRONOMY
    Type: Astrophysics and Space Science (ISSN 0004-640X); 173; 2, No; 265-292
    Format: text
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  • 8
    Publication Date: 2011-08-18
    Description: Transpacific balloon flights with the University of California, Riverside (UCR) double scatter telescope are discussed. With flight durations from 5 days up to perhaps 15 days the long observation times necessary for medium energy (1-30 MeV) gamma ray astronomy can be obtained. These flights would be made under the auspices of the Joint U.S.-Japan Balloon Flight Program at NASA. It is proposed that flights can provide at least 30 hours of observation time per flight for many discrete source candidates and 120 hours for detecting low intensity cosmic gamma ray bursts.
    Keywords: ASTRONOMY
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  • 9
    Publication Date: 2011-08-18
    Description: Observations of 1478 Abell clusters of galaxies with the NRAO 91-m telescope at 1400 MHz are reported. The measured beam shape was deconvolved from the measured source Gaussian fits in order to estimate the source size and position angle. All detected sources within 0.5 corrected Abell cluster radii are listed, including the cluster number, richness class, distance class, magnitude of the tenth brightest galaxy, redshift estimate, corrected cluster radius in arcmin, right ascension and error, declination and error, total flux density and error, and angular structure for each source.
    Keywords: ASTRONOMY
    Type: Astronomical Journal; 87; Aug. 198
    Format: text
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  • 10
    Publication Date: 2011-08-18
    Description: The Infrared Astronomical Satellite (IRAS) has completed an unbiased all-sky survey at wavelengths from 10 to 100 microns. The design and performance of the focal plane array is described with emphasis on in-orbit measurements of the sensitivity and stability. In the four broad spectral bands centered at 12, 25, 60, and 100 microns, the system noise equivalent flux density (NEFD) values are in Jy/(Square root of Hz), 0.03, 0.025, 0.046, and 0.21, respectively (Jansky = 10 to the -26th W/sq m/Hz). For point sources, a single scan at the survey rate of 3.8 arcmin/s yields limiting flux densities at the 3-sigma confidence level of 0.36, 0.30, 0.39, and 1.2 Jy. The dc stability of the junction field effect transistor (JFET) amplifiers and the excellent off-axis rejection of the telescope permit total flux measurements of extended infrared emission at levels below 6,000,000 Jy/sr. Response of the extrinsic silicon and germanium photo-detectors to ionizing radiation is described.
    Keywords: ASTRONOMY
    Type: Optical Engineering (ISSN 0091-3286); 23; 122-127
    Format: text
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