Bibliothek

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
  • 1
    Buch
    Buch
    Handbook of pattern recognition and computer vision / (2005)
    New Jersey [u.a.] :World Scientific,
    Details
    Titel: Handbook of pattern recognition and computer vision /
    Beteiligte Person(en): Chen, C. H.
    Ausgabe: 3. ed.
    Verlag: New Jersey [u.a.] :World Scientific,
    Erscheinungsjahr: 2005
    Seiten: IX, 639 S.
    ISBN: 981-256-105-6
    Materialart: Buch
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ZIB Katalog
    Zuse-Institut Berlin get availability status
  • 2
    Digitale Medien
    Digitale Medien
    Conformational analysis of cis- and trans-2,6-diphenyl-5,6-dihydro-2H-thiopyran (1979)
    s.l. : American Chemical Society
    The @journal of organic chemistry 44 (1979), S. 3591-3594 
    Details
    ISSN: 1520-6904
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/jo01334a036
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Dihydro-1,4-dithiin annelation (1976)
    s.l. : American Chemical Society
    The @journal of organic chemistry 41 (1976), S. 3053-3054 
    Details
    ISSN: 1520-6904
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/jo00880a038
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    High-intensity laser beam attenuation based on two-step absorption mechanism (1992)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 72 (1992), S. 4281-4287 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Due to rapid progress in the development of high-power tunable visible lasers, it is expected that eye protection from tunable lasers in the open field will be needed in the near future. A nonlinear method is proposed that will transmit low-intensity light, but absorb light at high intensities. This high-intensity attenuator is based on the use of a liquid or solid made up of molecules having the property of undergoing two-photon photodissociation through most of the visible part of the spectrum. This material must also have the additional property that one of the products of the photodissociation is a one-photon absorber throughout the same wavelength region. It is suggested that the laser beam intensity can be attenuated by a large factor through these two-step absorption mechanisms, and that if the one-photon absorbing product is quenched by collisions with some component of the liquid in a time that is small compared with the laser pulse length, very large attenuation can be achieved from the built-up concentration of one-photon absorbers. Thus, the early part of a laser pulse is attenuated by two-photon absorption only, but the later parts of the pulse can be attenuated by factors as large as 105. Using a double-pass geometry, the leading edge of the pulse can be absorbed by linearly absorbing species formed on the first pass. The double-pass method, with an optical delay line, can even work well with picosecond pulses.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.352189
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 5
    Digitale Medien
    Digitale Medien
    Fabrication of InP-based NnpnN heterojunction bipolar transistor (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 826-829 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: InGaAs(P)/InP double heterojunction bipolar transistors have been successfully fabricated by inserting an n-type InGaAsP (Eg=0.95 eV) quaternary (0.1 μm, undoped) layer on either side of the base by liquid-phase epitaxy (LPE). As we know, it is the first time to grow this structure by LPE. These devices have been fabricated using a non-self-aligned technology. In this case it can improve the common-emitter current/voltage (IC /VCE) characteristics. Small signal current gain hfe about 100 and dc current gain hFE about 80 at IC=38 mA can be obtained. The ideality factor of emitter-base junction is 1.43.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.346763
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    Desorption spectra of laser ablation of Tl-Ca-Ba-Cu-O superconductors (1993)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 73 (1993), S. 522-525 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Quantitative measurements of desorbed ions and neutral molecules by a quadruple mass spectrometer from laser ablation of Tl-Ca-Ba-Cu-O were obtained. The results indicate that more neutral atoms and molecules desorbed than the corresponding ions. More elementary ions desorbed than the corresponding oxide compounds.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.353361
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Desorption spectra of laser ablation of Bi2Sr2CaCu2O8+x (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 4643-4645 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Quantitative measurements of desorbed ions and neutral molecules by a mass spectrometer from laser ablation of Bi2Sr2CaCu2O8+x were obtained. The results indicate that more neutral atoms and molecules desorbed than the corresponding ions. The ratio of neutral atoms to ions decreases when the laser power density increases.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.349054
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    Magnetic properties and microstructure of light rare earth substituted 2:17 magnets : 35TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS San Diego, California (USA) 29 Oct−1 Nov 1990 (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 5853-5855 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Partial substitution of light rare earths (LRE) for Sm in 2:17 magnets improves the remanence, maximum energy product and the loop squareness without affecting their Curie temperature and the temperature dependence of 4πMs. Uniform, single-phased microstructures were obtained for LRE substituted magnets after heat treatment. Heat treated metallographic specimens revealed striations on the etched surfaces parallel within each grain and perpendicular to the c axis of the magnet alloy.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.348937
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    The use of triisopropylantimony for the growth of InSb and GaSb (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 7605-7611 
    Details
    ISSN: 1089-7550
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: A newly developed Sb source, triisopropylantimony (TIPSb), has been successfully used to grow InSb and GaSb epilayers by atmospheric pressure organometallic vapor phase epitaxy (OMVPE). Both GaSb and InSb have been grown with excellent morphologies. Growth efficiencies indicate that there are no parasitic reactions between TIPSb and trimethylgallium (TMGa) or trimethylindium. For GaSb growth, the temperatures have been varied between 500 and 600 °C. V/III ratios close to unity are necessary to obtain the best morphologies at 600 °C. As the growth temperature is decreased, lower V/III ratios are required. This is because TMGa decomposition is incomplete and TIPSb decomposes completely at these temperatures. The GaSb layers grown at 500 °C have background hole concentrations of 2×1016 cm−3. Low-temperature photoluminescence (PL) measurements indicate that the acceptor is due to Sb vacancies rather than carbon acceptors. A major advantage of TIPSb is that it decomposes at temperatures much lower than that for trimethylantimony (TMSb). InSb with good morphologies can be grown using V/III ratios close to unity at temperatures as low as 430 °C. On the other hand, growth temperatures higher than 500 °C are necessary for the growth of InSb using TMSb with V/III ratios of close to 1. For temperatures lower than 430 °C, InSb can be grown using TIPSb, but higher V/III ratios are required due to incomplete TIPSb pyrolysis. The InSb epilayers have electron concentrations of about 5×1016 cm−3 at 77 K and low-temperature PL shows well-resolved exciton and acceptor-related peaks. These results indicate that TIPSb is a viable source for the OMVPE growth of Sb-containing III-V semiconductors.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.348927
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    Measurements of two-photon absorption cross sections for liquid benzene and methyl benzenes (1988)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 88 (1988), S. 4671-4677 
    Details
    ISSN: 1089-7690
    Quelle: AIP Digital Archive
    Thema: Physik , Chemie und Pharmazie
    Notizen: Two-photon cross sections of neat benzene and methyl substituted benzenes at various wavelengths for selective excitation were measured by two-photon induced fluorescence spectra for the first time. The results show that the two-photon rate increases rapidly with the frequency of the photon.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.453781
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...