WILBERT

Wildauer Bücher+E-Medien Recherche-Tool

feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
  • 1
    Online Resource
    Online Resource
    Wiesbaden : Springer VS
    Keywords: Medienkonsum ; Mehrwert ; Public Value ; Publikumsforschung ; Öffentlich-rechtlicher Rundfunk ; Social sciences ; Communication ; Social Sciences ; Communication Studies ; Medienkonsum ; Mehrwert ; Public Value ; Publikumsforschung ; Öffentlich-rechtlicher Rundfunk
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (VIII, 210 Seiten) , Illustrationen
    ISBN: 9783658204983
    Series Statement: Forschung und Praxis an der FHWien der WKW
    DDC: 302.2
    Language: German
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    Online Resource
    Online Resource
    Wiesbaden : Springer VS
    Keywords: Sozialwissenschaften ; Redaktion (Journalismus) ; Unabhängigkeit ; Beeinflussung ; Kommerzialisierung ; Social sciences ; Public relations ; Journalism ; Social Sciences ; Corporate Communication ; Redaktion 〈Journalismus〉 ; Unabhängigkeit ; Beeinflussung ; Kommerzialisierung
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (VIII, 178 Seiten) , Illustrationen
    ISBN: 9783658135782 , 9783658135775
    Series Statement: Forschung und Praxis an der FHWien der WKW
    DDC: 070.4
    Language: German
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 3
    Book
    Book
    Freiberg : Techn. Univ. Bergakademie
    Keywords: Hochschulschrift
    Type of Medium: Book
    Pages: 134 S. , graph. Darst.
    Language: German
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 4
    Online Resource
    Online Resource
    Wiesbaden : Springer VS
    Keywords: Journalismus ; Public Value ; Öffentlich-rechtlicher Rundfunk ; Aufsatzsammlung ; Journalismus ; Public Value ; Öffentlich-rechtlicher Rundfunk
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (184 S.)
    ISBN: 9783658016432 , 9783658016449
    RVK:
    Language: German
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Mössbauer spectroscopy can be performed in transmission and backscattering geometry. The backscattered conversion electrons and X-rays can be used for nondestructive phase analysis on surfaces. Based on their different interactions in materials, they enable analyses of different depths. It is of particular interest to measure backscattering radiation and γ-ray transmission simultaneously. Based on the hyperfine parameters of the Mössbauer spectra information about phases, structures, defects and magnetic properties can be obtained. Besides the qualitative analysis in general an accurate quantitative phase analysis is possible. For example spectra of laser treated alloys are shown. It is the purpose of this note to demonstrate the use of these different types of radiation (electrons, X-ray and γ-ray) in analyzing surface phenomena.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 23 (1988), S. 3480-3484 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Interest is focused on the segregation and clustering behaviour of iron atoms in fcc Cu100−x−yAuxFey, alloys (x=6 to 50.7 at%, y=0.2 to 1.0 at%) of three different metallurgical states: as-rolled, fast-quenched and melt-spun. The gold concentration was varied to assess the effect of change in lattice parameter. Mössbauer spectroscopy has been used to examine iron clusters and phases in samples as functions of annealing temperature and time. The development of f c c γ-Fe, segregates with increasing annealing time at temperatures around 410° C has been monitored and the Néel temperature of the antiferromagnetic γ-Fe precipitates as well as their particle size determined, the latter by transmission electron microscopy. The increase in isomer shift with increasing gold concentration is accounted for mainly by changes in atomic volume.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 15-18 (Jan. 1987), p. 599-604 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 534 (1986), S. 159-174 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Thermal Decomposition of Pentacarbonyl Iron in Faujasite-Type ZeolitesThe nature of the iron species resulting from the title reaction has been elucidated by thermogravimetry, X-ray diffraction, electron microscopy, Mössbauer spectrometry, and by normal analytical methods. The thermal decomposition of Fe(CO)5 adsorbed in Y-type zeolite yields pure α-Fe. In X-type zeolite Fe(CO)5 is converted into a highly dispersed form of iron, into iron-subcarbonyl, and into high-spin FeII, occupying different sites of the lattice. Dealuminized zeolites adsorb Fe(CO)5 reversibly. The estimated size of the iron(III) oxide particles formed by air oxidation is in accordance with the assumption that Fe(CO)5 decomposes in Y-type zeolite with iron migrating to the surface of the zeolite crystals, whereas in X-type zeolite the iron remains inside the zeolite cavities.
    Notes: Dehydratisierte Zeolithe des Typs X und Y mit hohem (NaX, NaY) und niedrigem (Y) Gehalt an Natrium, sowie ein teilweise mit Ca beladener NaX-Zeolith (Ca/NaX) konnten ohne Zersetzung des Carbonylmetalls mit Fe(CO)5 dotiert werden. Nur im Fall des Na-armen Y-Zeoliths ließ sich das Carbonyleisen wieder unzersetzt desorbieren. NaX · Fe(CO)5, NaY · Fe(CO)5 und Ca/NaX · Fe(CO)5 ergeben bei niedrigen Temperaturen die gleichen Mößbauerspektren wie ausgefrorenes Pentacarbonyleisen. Bei und nach der thermischen Zersetzung verhalten sich die Produkte in NaX und NaY jedoch völlig verschieden. NaY · Fe ergibt das charakteristische Spektrum kompakten α-Eisens und ist luftbeständig. NaX · Fe(CO)5 bildet nach seiner thermischen Zersetzung durch Erhitzen auf 473 K ein pyrophores Material, dessen Mößbauer-Spektrum bei 4,2 K aus drei Quadrupol-Dubletts besteht, die auf sehr kleine Eisenkomplexe im Zeolithgerüst (Eisen-Subcarbonyle, Eisen-Cluster) und auf ein Zersetzungsprodukt, das planar und räumlich koordiniertes zweiwertiges High-Spin Eisen enthält, zurückzuführen sind.Gasanalytische Untersuchungen ergaben, daß bei der Sauerstoffoxidation des Pentacarbonyleisens in NaX primär Carbonylmetalloxide entstehen.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 29 (1994), S. 1213-1216 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The kinetics of the crystallization of Fe73.5Cu1Nb3Si13.5B9 amorphous alloy was studied using Mössbauer spectroscopy and X-ray diffractometry. During isothermal annealing of the samples, two phases were observed: a crystalline D03-FeSi alloy with fine grains and an amorphous phase enriched with niobium, boron and copper. It was found that the growth rate of the particles of the crystalline alloy was controlled by diffusion. For longer annealing time or at higher annealing temperature the growth process was found to be suppressed, probably by the niobium atoms. The activation energy obtained for the crystallization was about 143 kJ mol−1.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 10 (1991), S. 763-764 
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...