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
  • 1975-1979  (10)
Source
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Thermal contraction in NH4IO3 and its significance with respect to the phase transition (1975)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 31 (1975), S. 810-813 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: NH4IO3 shows an abrupt contraction in the direction of spontaneous polarization at 82°C. This anomaly is accompanied by changes in the optical properties and phonon spectra, which were also studied at different pressures. On the basis of the lattice parameters and Raman spectra a probable mechanism is suggested for the phase transition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S056773947500174X
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Physical properties and phase transitions in WO3 (1975)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 31 (1975), S. 356-359 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: A study of the phase transitions in WO3 crystals by Raman and absorption spectroscopy reveals that WO3 possesses two stable (or metastable) modifications at room temperature, differing slightly but definitely in their physical properties. Measurements of electrical conductivity show that both are insulators at low temperatures and semiconductors at higher temperatures. One is monoclinic and the other triclinic. Both exhibit at lower temperatures discontinuities in their physical properties without accompanying changes in cell parameters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567739475000745
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Influence of preferred orientation on the powder pattern of deerite (1978)
    Springer
    Contributions to mineralogy and petrology 66 (1978), S. 431-432 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Attention is drawn to the differences in the relative intensities of the reflections of deerite measured on a Guinier photograph and those obtained from diffractometer data (Langer et al., 1977), which were probably collected without taking adequate precautions to reduce the orientation effect. Powder data for deerite, which are in conformity with the structure, are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00403429
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Ionospheric–magnetospheric contributions to storm-time magnetic field changes near dip equator (1979)
    [s.l.] : Nature Publishing Group
    Nature 281 (1979), S. 471-474 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A coherent VHP backscatter radar and a proton precession magnetometer (PPM) were used for storm-time observations at Thumba near Trivandrum (dip 56'S; lat, 8.5 N; long, 77 E). The two experimental systems are described elsewhere1*2. Later improvements have enabled us to record the radar digital ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/281471a0
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    The phase diagram calcite-aragonite as derived from the crystallographic properties (1976)
    Springer
    Contributions to mineralogy and petrology 55 (1976), S. 55-67 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract A general method to calculate phase diagrams from the fundamental crystallographic properties has been suggested, using the calcite-aragonite reaction as an example. This procedure requires the measurement of the phonon spectra at different temperatures and pressures, calculation of a reasonable Grüneisen parameter to obtain C p values from the C v values and the consideration of the order—disorder phenomena and its contribution to the Gibb's energy. The remarkable agreement seen between the calculated diagram and that determined experimentally speaks for the reliability of this method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00372754
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Crystal chemistry of Fe-Mg-carpholites (1979)
    Springer
    Contributions to mineralogy and petrology 70 (1979), S. 41-47 
    Details
    ISSN: 1432-0967
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract A chemical and X-ray investigation of the Fe-Mg-carpholites of Crete/Greece reveals a large variation in their Fe2+/(Fe2++Mg) ratios (0.68 to 0.05). The lattice constants a and b depend linearly on this parameter, and the magnitude of the effect is comparable to that encountered in pyroxenes. The similar behaviour of the lattice dimensions of both these minerals is explained by comparing their structures and pointing out the salient crystal chemical similarities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00371870
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    A note on the vacuum structure of an SU(2) Yang-Mills theory (1979)
    Springer
    Communications in mathematical physics 67 (1979), S. 199-203 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract We discuss different compactifications of the spacial part ℝ3 of Minkowski space and give classifications of the vacuum structure for a Yang-Mills theory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01238844
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Statistical mechanics of a one-dimensional lattice gas with exponential-polynomial interactions (1976)
    Springer
    Communications in mathematical physics 47 (1976), S. 131-141 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract Some properties of the transfer-matrix for a one-dimensional classical lattice-gas with exponential-polynomial pair interactions are studied using Hilbert space techniques.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01608371
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    On the ζ-function of a one-dimensional classical system of hard-rods (1977)
    Springer
    Communications in mathematical physics 52 (1977), S. 175-189 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract The ζ-function of a one-dimensional classical hard-rod system with exponential pair interaction is defined as the generating function for the partition function of the system with periodic boundary conditions. It is shown, here, that the ζ-function for this system is simply related to the traces of the restrictions of the Ruelle's transfer matrix, and related operators to a suitable function space. This ζ-function does not, in general, extend to a meromorphic function.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01625782
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    The application of pulsed potential and pulsed current to a rotating disc electrode system (1979)
    Springer
    Journal of applied electrochemistry 9 (1979), S. 537-543 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract This paper is concerned with mass transfer to a rotating disc electrode (RDE) under pulsed potential and pulsed current conditions. For the case of pulsed potential, a numerical solution is presented to calculate the instantaneous current density for intermediate and large cycle times and an asymptotic solution for short cycle times. The special case of applying a step potential is then presented. The magnitude of the step current for a given transition time is calculated from the numerical solution by Viswanathanet al. for the pulsed current case. Comparison is made between the present results and various approximate solutions from the literature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00610939
    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...