GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1985-1989  (7)
  • 1989  (7)
  • 1
    Electronic Resource
    Electronic Resource
    High-efficiency indium tin oxide/indium phosphide solar cells (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 54 (1989), S. 2674-2676 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Improvements in the performance of indium tin oxide/indium phosphide (ITO/InP) solar cells have been achieved by using dc magnetron sputter deposited n-ITO onto an epitaxial p/p+ structure grown on good quality commercial p+ bulk substrates. The composition of the sputtering gas has been investigated and the highest efficiency cells resulted when the surface of the epilayer was exposed to an Ar/H2 plasma before depositing the bulk of the ITO in a more typical Ar/O2 plasma. With H2 processing, record efficiencies of 18.9% global, 1000 W m−2, 25 °C (17.0% air mass zero) were achieved. Without H2 processing, the devices exhibited lower efficiencies and were unstable. Type conversion of the InP was shown to occur and was established as being associated with the ITO (possibly due to Sn donors) rather than sputter damage. These improvements in performance have resulted from the optimization of the doping, thickness, transport, and surface properties of the p-type base, as well as from better control over the ITO deposition procedure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.101363
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Surface potential dependence of enhanced Raman bands of aggregated cyanine dyes (1989)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 93 (1989), S. 1977-1984 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100342a054
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Structural characterization of the manganese(IV) Schiff-base complex MnIV(5-Cl-SALAHP)2 (1989)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 45 (1989), S. 1517-1519 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270189003136
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Dissociation of CO on stepped/kinked surface areas of a rounded Pt crystal: I. Clean surface (1989)
    Springer
    Catalysis letters 2 (1989), S. 113-120 
    Details
    ISSN: 1572-879X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Work function measurements carried out by FEM on rounded, “FEM-clean” Pt crystals show that the dissociation of adsorbed CO occurs predominantly on kinked edges. The dissociation activity of a crystal area is proportional to its kink density.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00774593
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    The influence of ovarian hormones on the rat oviductal and uterine concentration of noradrenaline and 5-hydroxytryptamine (1989)
    Springer
    Neurochemical research 14 (1989), S. 821-827 
    Details
    ISSN: 1573-6903
    Keywords: Noradrenaline ; 5-hydroxytryptamine ; oviduct ; uterus ; ovariectomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This paper describes the effects of estradiol and progesterone on the concenirations of noradrenaline and 5-hydroxytryptamine in the Wistar rat oviduct and uterus. The levels of noradrenaline and 5-hydroxytryptamine are higher in the oviduct than in the uterus whereas p-tyrosine and tryptophan are similar in both tissues. Estradiol treatment reduced the oviductal concentration of noradrenaline but not 5-hydroxytryptamine in oviduct, while the concentrations of both noradrenaline and 5-hydroxytryptamine were reduced in uterine horn. The levels of noradrenaline in the oviduct and uterus in rats in estrus were lower than those of diestrous rats. Bilateral ovariectomy produced an increase in uterine noradrenaline and 5-hydroxytryptamine levels. These changes were reversed in the presence of ovarian hormones as indicated by experiments where unilateral ovariectomy was performed. Reserpine administration reduced noradrenaline concentration in both the oviduct and the uterus but did not change oviductal or uterine 5-hydroxytryptamine. These results indicate the existence of noradrenaline within postganglionic sympathetic nerve terminals and suggest that estrogens increase the utilization and the synthesis of noradrenaline in both the oviducts and the uterine horns. With respect to 5-hydroxytryptamine the data support the concept that it is mainly associated with mast cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00964810
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    A preliminary quantum-chemical study of the mechanisms for the reactions of perchlorofluoroethanes with nucleophiles initiated by chlorophilic attacks (1989)
    Chichester : Wiley-Blackwell
    Journal of Physical Organic Chemistry 2 (1989), S. 103-109 
    Details
    ISSN: 0894-3230
    Keywords: Organic Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: A preliminary theoretical study of the mechanisms for the reactions of the perchlorofluoroethanes CF2ClCCl3 (1), CF2ClCCl2F (2) and CF3CCl3 (3), with nucleophiles has been carried out by the MNDO method, following the experimentally suggested process shown in Scheme 1. The unlikely chlorophilic attack in the first step of Scheme 1 has been shown to be feasible for 1, 2 and 3 by analysis of the MO interactions. The second step has been found to be affected by the anionic hyperconjugation which stabilizes the anions CF2ClCCl2- (4), CF2ClCClF- (5) and CF3CCl2- (6) and would make reactions (2) (the second step) unfeasible in gas phase, but in solution reaction (2) may still easily occur for 4 and 5.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/poc.610020203
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    In vivo interference by Newcastle disease virus in chickens, the natural host of the virus (1989)
    Springer
    Archives of virology 108 (1989), S. 229-245 
    Details
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Homologous and heterologous viral interference is a common occurrence that has been well studied in vitro. In the present study, homologous viral interference between the LaSota and NYP strains of Newcastle disease virus (NDV) was studied in vivo in chickens, the natural host for NDV. The LaSota strain is avirulent and widely used as a vaccine in poultry industry, while the NYP strain is highly virulent and causes acute disease and death in chickens within four to six days after infection. Chickens generally became resistant to NYP strain challenge 12 hours after intranasal or intratracheal inoculation with LaSota strain virus. The resistance was manifested by reduction in chicken morbidity and mortality, decrease in virus replication in the chicken respiratory tract (p〈0.05), and inhibition of NYP strain induced gross and microscopic lesions. Interferon was first detected in the chicken respiratory tract and blood at 3 to 6 hours; it peaked at 12 to 24 hours and was maintained for 48 hours after viral inoculation, indicating that interferon induction might be one possible mechanism of the interference between the two strains. This study suggests a role for viral interference in vaccination against virulent viruses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01310936
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...