Library

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
  • 2005-2009
  • 1985-1989  (35)
  • 1989  (15)
  • 1988  (20)
  • 1
    Electronic Resource
    Electronic Resource
    Dielectric and magnetic properties of polycrystalline cobalt-substituted LiTi ferrites (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 3780-3782 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The electric, dielectric permittivity, loss tangent, microwave power absorption, and hysteresis loop parameters were studied on a series of cobalt-substituted lithium titanium ferrites. The experimental results indicate that cobalt substitution affect all these parameters. The observed dispersion in conductivity and dielectric permittivity with frequency and temperature are in accordance with Maxwell–Wagner model while the microwave and hysteresis loop properties can be interpreted with the help of Dionne's exchange isolation model.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.340638
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Effect of demagnetizing fields on Kerr effect in ferrites (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 63 (1988), S. 3762-3764 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The analysis of experimental data of magnetomicrowave Kerr effect in MgMn ferrite samples at 9.442 GHz has been carried out using external permeability tensor components which take care of demagnetizing fields more accurately in the theory and is based on the guided wave propagation of the microwave inside the sample. The present analysis gives a better agreement with the experimental data in comparison to our earlier analysis which was based on the free-wave propagation of the microwave. The importance of the image effect in the demagnetizing factor is also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.340660
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Ethnic influence on uterine activity in spontaneous normal labour (1989)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 96 (1989), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Uterine activity in spontaneous normal labour was studied in Singaporean Malay women at term with a singleton vertex presentation. Nulliparae had significantly higher uterine activity compared with their multiparous counterparts. Uterine activity in the Malay population was compared with that of a similar Chinese population. When controlled for parity, maternal height and birthweight of babies, there was no difference in uterine activity between the two groups.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1989.tb03197.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Removal of 1-butanethiol from diesel oil by red mud (1988)
    s.l. : American Chemical Society
    Industrial & engineering chemistry research 27 (1988), S. 2101-2104 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie00083a024
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Molar excess volumes and molar excess enthalpies of some ternary mixtures of nonelectrolytes (1988)
    s.l. : American Chemical Society
    Journal of chemical & engineering data 33 (1988), S. 448-450 
    Details
    ISSN: 1520-5134
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/je00054a017
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    3,3',5,5'-Tetrachloro-4,4'-dihydroxybiphenyl. A coplanar polychlorinated biphenyl in the solid state (1988)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 44 (1988), S. 558-562 
    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/S0108270187009946
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Crystal structure and absolute configuration of (+)-methadone hydrobromide (1989)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 45 (1989), S. 1469-1471 
    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/S0108270189005780
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Preparation and characterization of surface modified electrodes from hydroxyanthraquinones (1988)
    Springer
    Journal of applied electrochemistry 18 (1988), S. 368-373 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The preparation of polyphenylene oxide polymer films has been extended to the anthraquinone series. Potentiostatic and cycled potential procedures have been utilized in the anodic polymerization of several hydroxy-substituted anthraquinones producing surface modified electrodes incorporating the quinone moiety. The electrochemical response of such electrodes was investigated in aqueous media and the stability of the films was evaluated under moderately harsh testing conditions, simulating the environment of a lead-acid battery electrolyte.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01093750
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Effect of phosphorus fertilization on blue-green algal inoculum production and nitrogen yield under field conditions (1988)
    Springer
    Biology and fertility of soils 5 (1988), S. 338-343 
    Details
    ISSN: 1432-0789
    Keywords: Blue-green algae (BGA) ; Phosphorus fertilization ; Inoculum production ; Nitrogen yield ; Cyanobacteria ; Aulosira spp. ; Aphanothece spp. ; Gloeotrichia spp.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Field experiments were conducted to assess the effects of the application of P on growth and N yield of inoculated and indigenous blue-green algae (BGA). Addition of 17.4 kg P ha−1 in split applications led to the highest BGA biomass and N yield, 162 kg dry weight ha−1 and 6 kg N ha−1 per 15 days, respectively. When inoculum of Aulosira spp., Aphanothece spp., Gloeotrichia spp. were compared separately, Gloeotrichia spp. grew faster but Aulosira spp. fixed more N. The growth rate and N yield of Aulosira spp. decreased with high P applications, although growth continued until the application of 34.8 kg P ha−1. The effects of P on inoculum production by local species compared with those collected from other states showed the superiority of the local culture. Applications of P also enhanced the growth and N yield of indigenous BGA, with Wollea spp. showing the best results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00262143
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Fluctuating flow in a rotating fluid (1988)
    Springer
    Archive of applied mechanics 58 (1988), S. 343-353 
    Details
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Übersicht Untersucht wird die fluktuierende Strömung einer viskosen Flüssigkeit, die über einer Scheibe, deren Winkelgeschwindigkeit um einen von Null verschiedenen Mittelwert schwankt, rotiert. Anfangs drehen sich die Scheibe und die Flüssigkeit gleichsinnig, aber mit verschiedenen Winkelgeschwindigkeiten Ω 1 und Ω 2 (Ω 2〉Ω 1). Zu einem Anfangszeitpunkt geht die Winkelgeschwindigkeit der Scheibe über in Ω 1[1+ε sin ( $$\bar \omega \bar t$$ )]. Die Aufgabe wird als Anfangs-/Randwertproblem gelöst. Für kleine Werte ε stimmen die analytischen und numerischen Ergebnisse hervorragend überein. Für verschiedene Werte des Winkelgeschwindigkeitsverhältnisses und des Amplitudenparameters ε wurde der Einfluß des Frequenzparameters auf die Reibspannungen an der Scheibe untersucht.
    Notes: Summary Fluctuating flow of a viscous fluid rotating over a disk whose angular velocity oscillates about a nonzero mean is investigated. Initially the disk and the fluid rotate in the same sense with different angular velocities Ω 1 and Ω 2 (Ω 2〉Ω 1) and at a particular instant of time, the angular velocity of the disk becomes Ω 1[1+ε sin( $$\bar \omega \bar t$$ )]. The problem is solved as an initial boundary value problem and it is found that for small values of ε the results of analytical and numerical methods are in excellent agreement. The effect of frequency parameter on surface skin frictions has been analysed for various values of angular velocity ratio s and amplitude parameter ε.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00534354
    Library Location Call Number Volume/Issue/Year 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...