ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

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
  • Crystal chemistry  (1)
  • LUNAR AND PLANETARY EXPLORATION  (1)
  • 1980-1984  (2)
Collection
Keywords
Publisher
Years
Year
  • 1
    facet.materialart.
    Unknown
    In:  Other Sources
    Publication Date: 2019-06-28
    Description: A method based on the use of constrained spline fits is used to overcome the difficulties arising when body-wave data in the form of T-delta are reduced to the tau-p form in the presence of cusps. In comparison with unconstrained spline fits, the method proposed here tends to produce much smoother models which lie approximately in the middle of the bounds produced by the extremal method. The method is noniterative and, therefore, computationally efficient. The method is applied to the lunar seismic data, where at least one triplication is presumed to occur in the P-wave travel-time curve. It is shown, however, that because of an insufficient number of data points for events close to the antipode of the center of the lunar network, the present analysis is not accurate enough to resolve the problem of a possible lunar core.
    Keywords: LUNAR AND PLANETARY EXPLORATION
    Type: Seismological Society of America, Bulletin (ISSN 0037-1106); 72; 2147-217
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Chemie 114 (1983), S. 267-272 
    ISSN: 1434-4475
    Keywords: Nitrate group ; Crystal chemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die geometrische Analyse sorgfältig verfeinerter Kristallstrukturen anorganischer Nitrate zeigt, daß schwache Aplanaritäten dieser Gruppe — d. h. solche mit einem Abstandd des Stickstoffs von der Ebene der drei Sauerstoffe bisd ∼ 0,02 Å — keineswegs seltene Ausnahmen sind. Viel größere Aplanaritäten wurden zwar beschrieben oder ergeben sich aus den veröffentlichten Strukturdaten; alle Beispiele mitd〉0,05 Å scheinen jedoch einer Bestätigung zu bedürfen.
    Notes: Abstract Geometric analysis of carefully refined inorganic nitrate crystal structures shows that weak aplanarities of the NO3-group, i.e. with a distanced of the nitrogen atom from the plane defined by the three oxygen atoms up tod∼0.02 Å, are by no means rare exceptions. Much larger aplanarities have been reported to occur in some crystal structures or follow from the published structure data, but all examples withd〉0.05 Å seem to need confirmation.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...