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
    Silylphosphonium compounds. Synthesis and structure (1976)
    s.l. : American Chemical Society
    Inorganic chemistry 15 (1976), S. 848-856 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50158a023
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Positron lifetimes and annihilation lineshape in Cd and au from 4.2 K to the melting points (1977)
    Springer
    Applied physics 12 (1977), S. 59-67 
    Details
    ISSN: 1432-0630
    Keywords: 61.70 ; 81
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract By means of an integrated source-specimen technique the temperature dependence of positron lifetimes and annihilation lineshapes has been measured, on the same specimens of gold and cadmium from 4.2K to the melting points, and also in electronirradiated and quenched gold. The anomalous temperature dependence of positron annihilation at intermediate temperatures (200 to 350 K in Cd, 270 to 750 K in Au) discovered by Lichtenberger, Schulte, and MacKenzie is confirmed. The data are incompatible with the idea that the intermediate temperature dependence is due to thermal expansion. They are well explained by an extension of the trapping model which includes the formation of metastable self-trapped positrons. From lineshape measurements after electron irradiation at 180 K and after quenching it is deduced that the trapping rate of positrons at vacancy-type defects in Au is temperature independent below room temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00900069
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    A peroxy isomer of nitrogen dioxide (1976)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 80 (1976), S. 2035-2037 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100559a017
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Molecular Electronic Structure Theory: 1972-1975 (1976)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Physical Chemistry 27 (1976), S. 261-290 
    Details
    ISSN: 0066-426X
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.pc.27.100176.001401
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Die Kristallstruktur von H.T.-GeS2 (1975)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 31 (1975), S. 2060-2064 
    Details
    ISSN: 1600-5740
    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/S0567740875006851
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Die Kristallstruktur von Germaniumdiselenid (1976)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 32 (1976), S. 2726-2728 
    Details
    ISSN: 1600-5740
    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/S0567740876008704
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Die Kristallstruktur von L.T.-GeS2 (1976)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 32 (1976), S. 1188-1192 
    Details
    ISSN: 1600-5740
    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/S0567740876004913
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Qualitative Analysen und kolorimetrische Schätzungen mit Hilfe der Jenaer Glastüpfelplatte (1937)
    Springer
    Microchimica acta 1 (1937), S. 144-153 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary 1. On account of its transparency, a spot test plate made of Jena glass („Jenaer Glastüpfelplatte“) is suitable for all spot tests, no matter what colour the reaction products have. 2. It has been found that the greatest sensitivity is reached by working on a spot test plate which rests on a white or black background. A silver coloured paper gives a rather convenient background, both for bright and dark precipitates and hues. 3. By making spot tests with suitable standard solutions, on this plate, one can perform semi-quantitative analyses. 4. It is possible, on this plate, to determine the concentration of hydrogen ions with satisfying accuracy. 5. The new spot tests plate may be advantageously used for fluorescence tests and several microscopical examinations.
    Abstract: Résumé 1° La plaque de touche en verre d'Iéna (Jenaer Glastüpfelplatte) possède, grâce à sa transparence, toutes les qualités requises pour les réactions de touches, quelle que soit la couleur des produits de réaction. 2° On a constaté que la sensibilité maximale est atteinte en travaillant sur un fond blanc ou noir. Un papier couleur d'argent peut servir de fond, également convenable, pour les précipités (et colorations) clairs et foncés. 3° Au moyen de solutions types appropriées on peut exécuter, sur cette plaque, des analyses de touche sémi-quantitatives. 4° Sur la plaque en verre décrite, il est possible de déterminer la concentration des ions d'hydrogène, avec une précision satisfaisante. 5° Aussi, l'emploi de cette plaque offre des avantages pour les analyses par fluorescence et pour certaines recherches microscopiques.
    Notes: Zusammenfassung 1. Wegen ihrer Durchsichtigkeit eignet sich die Jenaer Glastüpfelplatte für sämtliche Tupfreaktionen, gleichgültig welche Farbe die Reaktionsprodukte besitzen. 2. Die größte Empfindlichkeit wurde beim Arbeiten mit weißer bzw. schwarzer Unterlage festgestellt. Als Untergrund sowohl für helle als auch für dunkle Niederschläge und Färbungen ist ein silberfarbiges Papier recht geeignet. 3. Durch Tüpfeln auf der Jenaer Glastüpfelplatte sind bei Verwendung entsprechender Vergleichslösungen halbquantitative Analysen ausführbar. 4. Die Bestimmung der Wasserstoffionenkonzentration ist auf der Glastüpfelplatte mit guter Genauigkeit möglich. 5. Für Fluoreszenzprüfungen und manche mikroskopische Untersuchungen wird die Glastüpfelplatte ebenfalls mit Vorteil verwendet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01475974
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Problems of component discrimination in space radiation dosimetry (1975)
    Springer
    Radiation and environmental biophysics 12 (1975), S. 127-137 
    Details
    ISSN: 1432-2099
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Notes: Summary Resolving the LET spectrum of environmental radiation in space for assessing dose equivalents creates special problems due to superposition effects. Three components of the radiation field in space, trapped protons, tissue disintegration stars, and neutrons, contribute the bulk of the total dose equivalent. While lack of discrimination of neutron recoil and trapped primary protons does not interfere with correct determination of the combined dose equivalent as such, the simultaneous bursts of several low-energy protons and alpha particles from tissue disintegration stars completely defy LET-resolution with conventional instrumentation. So far, the tissue star dose has been determined only semiquantitatively from nuclear emulsion data. The neutron spectrum in space shows a markedly higher relative fluence in the region beyond 5 MeV than the fission neutron spectrum. Therefore, its LET spectrum centers less heavily on LET values near the proton Bragg Peak. This would call for assigning a QF value of less than 10 to the neutron dose in space. Still more serious shortcomings exist with regard to LET interpretation of heavy primaries.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01328974
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Microdosimetric structure of heavy ion tracks in tissue (1976)
    Springer
    Radiation and environmental biophysics 13 (1976), S. 215-227 
    Details
    ISSN: 1432-2099
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Notes: Summary Energy dissipation in tracks of high energy heavy ions in tissue shows a lateral spread of several to many microns depending on the energy of the primary particle. Complete dosimetric characterization, therefore, requires in addition to the Linear Energy Transfer (LET) information on the radial energy distribution. The theory of track structure distinguishes two regions: core and penumbra. The core is a narrow central zone with a radius in tissue far below 1 micron where energy deposition occurs mainly in processes of excitation and electron plasma oscillation. According to the Equipartition Principle, half of the total energy dissipation accrues in this manner. The penumbra is a peripheral zone enveloping the core where energy deposition occurs mainly in ionization events by energetic secondary electrons released by the primary particle in the center of the core traveling at rather high speed thus spreading laterally. The extension of the penumbra depends in a complex manner on the maximum transferable energy to electrons which in turn depends on the speed of the primary particle. Local energy density in the penumbra decreases with the square of increasing radius. It therefore amounts only to a very small fraction of the core density already a few microns away from the center. In general terms, track structure can be described as exhibiting a core of enormous energy density with lateral dimensions remaining entirely on the submicroscopic level surrounded by a penumbra where energy density drops precipitously to very small levels. The relationships are illustrated with micrographs of different sections of a heavy particle track in nuclear emulsion and their counterpart graphical plots.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01330766
    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...