ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

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
  • 1
    Electronic Resource
    Electronic Resource
    Use of electron beam techniques to study ion deposition in secondary ion mass spectrometry sputter craters (1985)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 57 (1985), S. 2727-2732 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Electron beam techniques have been used to examine the topography and composition of sputter craters formed by an indium primary ion beam from a liquid metal ion source during secondary ion mass spectrometric analysis. Secondary electron images in a scanning electron microscope revealed the crater topography but the presence of implanted In from the primary ion beam could not be detected using an energy dispersive x-ray detector. Auger electron spectroscopy was used to detect the presence of In in the craters, and to establish the qualitative distribution of elements in and around the craters at the surface. Surface contamination of the specimens prevented quantitative interpretation. The total indium concentration distribution across the craters was measured in an electron probe microanalyzer with a crystal spectrometer. The technique can be used to measure total In in the bottom of the crater from which total sputter yield can be obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.335414
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Moessbauer study of the kinetics of iron(3+) photoreduction on titanium dioxide semiconductor powders (1985)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 89 (1985), S. 3076-3080 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100260a025
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Comprehensive Computer Program for Electron Probe Microanalysis. (1966)
    s.l. : American Chemical Society
    Analytical chemistry 38 (1966), S. 890-894 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac60239a023
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Metal isotope shifts and normal-coordinate analysis of the nickel thiomolybdate ([58Ni(92MoS4)2]2-) ion and its nickel-62 and molybdenum-100 analogs (1975)
    s.l. : American Chemical Society
    Inorganic chemistry 14 (1975), S. 2009-2011 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50150a056
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Surface studies on a leached sphene glass (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 708-710 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] CaTiSiO5 glasses were prepared by melting an intimately mixed charge of calcium carbonate, titanium dioxide and silica at 1,450 C for 1 h, followed by casting 1-cm diameter cylinders in stainless steel moulds. The tendency of the glass to crystallize or phase separate was avoided by keeping the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/299708a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Central charges in the canonical realization of asymptotic symmetries: An example from three dimensional gravity (1986)
    Springer
    Communications in mathematical physics 104 (1986), S. 207-226 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract It is shown that the global charges of a gauge theory may yield a nontrivial central extension of the asymptotic symmetry algebra already at the classical level. This is done by studying three dimensional gravity with a negative cosmological constant. The asymptotic symmetry group in that case is eitherR×SO(2) or the pseudo-conformal group in two dimensions, depending on the boundary conditions adopted at spatial infinity. In the latter situation, a nontrivial central charge appears in the algebra of the canonical generators, which turns out to be just the Virasoro central charge.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01211590
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Suppression of reproductive development and longevity in the redshouldered leaf beetle,Monolepta australis (Col.: Chrysomelidae) by the tachinid,Monoleptophaga caldwelli (Dipt.) (1993)
    Springer
    BioControl 38 (1993), S. 335-342 
    Details
    ISSN: 1573-8248
    Keywords: reproductive development ; longevity ; Australia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Résumé Le niveau et l'incidence du parasitisme de la tachinaireMonoleptophaga caldwelli sur la chrysomèleMonolepta australis ont été examinés dans cette étude ainsi que ses effets sur le développement des gonades et la longévité de l'hôte. C'est en janvier et février que dans le Nord du Queensland le nombre moyen deM. australis capturés au piège lumineux a été le plus élevé alors que le parasitisme a atteint 6,6% en juin et 6,8% en juillet; le taux moyen de parasitisme était de 4,8% sur l'ensemble de la période d'échantillonnage et dans un seul cas le parasitisme a atteint 28%. Au total, seulement 2,4% des chrysomèles parasitées sont encore représentées dans les deux derniers stades du développement ovarien contre 29,1% chez les individus non parasités. Une différence hautement significative (P〈0,001) a été relevée dans les fréquences de distribution entre les femelles parasitées et celles non parasitées dans les différents stades du développement ovarien et la plupart des mâles parasités présentent des gonades atrophiés. Pour les chrysomèles récoltées dans la nature mais maintenues en laboratoire, la longévité moyenne des insectes parasités a été de 15,6 jours contre 72,2 jours chez les non-parasités.
    Notes: Abstract This paper examines the level and seasonal incidence of parasitism of the redshouldered leaf beetle,Monolepta australis (Jacoby), by the tachinid,Monoleptophaga caldwelli Baranov, and assesses the impact of this fly on the beetle's reproductive development and longevity. Highest average numbers ofM. australis were trapped at light in north Queensland in January and February while parasitism peaked at 6.6 and 6.8% in June and July respectively, averaging 4.8% over the entire sampling period and reaching 28% for a single occasion. Overall, only 2.4% of parasitized beetles were represented in the final two stages of ovarian development compared to 29.1% of non-parasitized ones. There was a highly significant (P〈0.001) difference in the distribution frequencies of parasitized and non-parasitized females in the various stages of ovarian development, and most parasitized males possessed atrophied testes. For field-collected beetles maintained in the laboratory, average longevity for those parasitized was 15.6 days compared to 72.2 days for those not parasitized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02374450
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    The use of SIMS to investigate the incorporation of oxygen in CoO scales (1978)
    Springer
    Oxidation of metals 12 (1978), S. 405-411 
    Details
    ISSN: 1573-4889
    Keywords: SIMS ; oxygen distribution ; CoO scales ; O18 exchange
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract SIMS was used to locate O18 in a thick oxide scale grown on a cobalt specimen oxidized first in O16 and subsequently in O18. Analyses were performed in depth profile from the oxide-gas interface and in step scan across a polished cross section. SIMS was found to be well suited to this type of oxygen tracer study. Eighty percent of the O18 was located in the inner quarter of the scale with a maximum value of 70% 10–15 μ from the metal-oxide interface. The distribution of the remaining O18 was essentially uniform in the outer 3/4 of the scale at an average value of 4.6%. There was, however, a layer 150 nm thick highly enriched in O18 at the oxide-gas interface. The O18 in the outer 3/4 of the porous scale is probably the result of normal exchange processes. The form of the distribution near the metal-oxide interface cannot be explained at this time.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00612087
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Quantitative caesium and silver depth-profiles in hightemperature molybdenum- and nickel-base alloys (1982)
    Springer
    Microchimica acta 77 (1982), S. 85-95 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Wir untersuchten das Diffusionsverhalten von Cäsium und Silber in den technischen Hochtemperatur-Werkstoffen Nimocast 713 LC, Nimonic 86, Inconel 625 und TZM. Proben mit polierten Oberflächen wurden zwischen 700 und 1050° C im Vakuum während 170 bis 5500 h bei einem Csund Ag-Partialdruck von 10−6 Torr beladen. SIMS Nachfolgeexperimente mittels einer Ionenmikrosonde wurden an einer großen Anzahl solcher Proben ausgeführt. Dabei wurden die Multielement-Tiefenprofile in quantitative Konzentrations-Tiefenprofile transformiert unter Zuhilfenahme des LTE-(Local-Thermodynamic-Equilibrium)-Modelles von Anderson und Hinthorn. An einigen Proben wurden auchγ-spektroskopische Konzentrationsbestimmungen von radioaktivem, eindiffundiertem Cäsium mit den SIMS-Mes-sungen verglichen. Die quantitativen Konzentrations-Profile wurden mit einem einfachen Diffusionsmodell korreliert, wobei gute Übereinstimmung der Cs-Diffusionsparameter mit jenen in elementarem Nickel bzw. Molybdän gefunden wurde.
    Notes: Summary In order to study the diffusion behaviour of caesium and silver in the technical high-temperature alloys Nimocast 713 LC, Nimonic 86, Inconel 625 and TZM, corresponding samples with polished surfaces were vacuum annealed between 700 and 1050° C for times between 170 and 5500 hr at Cs and Ag partial pressures of 10−6 mm Hg respectively. Post-exposure ion-microprobe mass analysis (IMMA) of a series of such samples, resulted in layer-stripping by sputtering and multielement depth profiles. The data were interpreted quantitatively with a physical model called the local thermodynamic equilibrium (LTE) model, and in some cases with the aid ofγ-spectroscopy with use of radioactive tracing materials. The results are discussed in terms of a comparison between the two approaches, and the quantitative concentration profiles are being used in a study of the diffusion behaviour in such systems. Good agreement with existing Cs diffusion data in pure nickel or molybdenum has been achieved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01196759
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Microprobe analysis. C.A. Andersen (Ed.), Wiley Interscience, 1973. $24.95 (1974)
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 3 (1974), S. A28 
    Details
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/xrs.1300030415
    Location Call Number Expected 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...