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  • 1
    Electronic Resource
    Electronic Resource
    Chemical reactions, thermal and mechanical properties of epoxy — Polycarbonate blends cured with aromatic amines (1996)
    Springer
    Journal of polymer research 3 (1996), S. 177-184 
    Details
    ISSN: 1572-8935
    Keywords: Epoxy ; Polycarbonate ; Transesterification ; Transamidation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Bisphenol-A polycarbonate (PC) has been incorporated into epoxy resin cured with 4,4′-diaminodiphenyl sulphone (DDS) and 4,4'-diaminodiphenyl methane (DDM). IR spectra reveal that transesterification and transamidation occur between the carbonate group of PC and the hydroxyl group of cured epoxy resin for the DDM-cured system, and that only transesterification occurs for the DDS-cured system. Scanning electron micrographs (SEM) show no evidence of phase separation in these cured systems, which is an indication of full miscibility between the bisphenol-A monomers and PC-oligomers with the copolymer network. The mechanical strength and glass transition temperature (Tg) fluctuate with PC content, whereas the flexural modulus shows a steadily increasing tendency.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01494528
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    An Electrospinning Approach to Polyaniline Nanofibers by Template (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 121-123 (Mar. 2007), p. 579-582 
    Details
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: Polyaniline doped with camphorsulfonic acid (PANI.HCSA) nanofibers have beensuccessfully prepared using “nanofibers template” via electrospinning. The PVA nanofibers wereused as a template to get the PANI/PVA composite fibers. After removing the template by heattreatment, the PANI fibers were obtained. Scanning electron microscope (SEM) with the EnergyDispersive X-Ray Spectrometer software (EDX) and FT-IR spectra were used to characterize thecomposite fibers and the PANI.HCSA nanofibers. The average diameters of the composite fibersobtained and PANI fibers were 920 nm and 530 nm, respectively
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/23/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.121-123.579.pdf
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A motion control algorithm for a continuous mining machine based on a hierarchical Real-time Control System design methodology (1992)
    Springer
    Journal of intelligent and robotic systems 5 (1992), S. 79-99 
    Details
    ISSN: 1573-0409
    Keywords: Continuous mining machine ; control ; error analysis ; hierarchy ; plan ; real-time ; task ; task decomposition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The drive toward increased safety for coal miners has led to the development of computer-assisted methods of underground coal mining. The development of control architectures for the control of the movement of continuous mining machines (tramming control) is an important part of this overall effort. The tramming control algorithm design described is in concert with hierarchical architecture design principles developed at National Institute of Standards and Technology (NIST), referred to as the Real-time Control Systems (RCS) methodology. The algorithm design allows for the control of both cutting and free-space movement by a continuous mining machine and allows for a high degree of human operator interaction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00357132
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Fabrication and Characterization of Carbon Nanofibers Carrying Ag Nanoparticles via Electrospinning (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 121-123 (Mar. 2007), p. 123-126 
    Details
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: The carbon-nanofibers carrying Ag nanoparticles (Ag/CNF) have been successfullyobtained via electrospinning followed by calcination. For it, AgNO3/polyacrylonitrile (PAN) fiberswere firstly prepared as an intermediate and then the intermediate was calcined at 600℃ for 4h totransit the PAN nanofibers to the CNF and reduce AgNO3 to the Ag nanoparticles. Transmissionelectron microscope (TEM), Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction(XRD) were used to characterize their morphologies and structures. The results show that thediameters of the Ag nanoparticles and CNF are 5 nm and 180 nm on the average, respectively. Mostof the Ag nanoparticles were located on the surface of carbon nanofibers
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/23/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.121-123.123.pdf
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
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