Bibliothek

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
  • 1995-1999  (6)
  • 1985-1989  (9)
  • 1980-1984  (1)
Datenquelle
Materialart
Erscheinungszeitraum
  • 1995-1999  (6)
  • 1985-1989  (9)
  • 1980-1984  (1)
  • 1990-1994  (16)
Jahr
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    Effect of female size on fecundity and egg size in white-spotted charr: comparison between sea-run and resident forms (1998)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 53 (1998), S. 0 
    Details
    ISSN: 1095-8649
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Biologie
    Notizen: The relationships between fecundity, egg size and female size of sea-run form were compared with resident form, using white-spotted charr, Salvelinus leucomaenis. Both fecundity and egg size increase with female size. However, the relationship between egg size and female size differed significantly between the resident and sea-run forms. Egg sizes of sea-run and resident were similar even though sea-run fish were much larger. ? 1998 The Fisheries Society of the British Isles
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1095-8649.1998.tb00471.x
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Nitrile hydratase from a thermophilic Bacillus smithii (1998)
    Springer
    Journal of industrial microbiology and biotechnology 20 (1998), S. 220-226 
    Details
    ISSN: 1476-5535
    Schlagwort(e): Keywords: nitrile hydratase; thermophile; Bacillus smithii
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Notizen: A novel thermophilic Bacillus smithii strain SC-J05-1, isolated from a hot spring, had the ability of hydrating nitrile to form amide. The nitrile hydratase was purified to homogeneity from the microbial cells of SC-J05-1 and was characterized. The enzyme was a 130-kDa protein composed of two different subunits (25.3 kDa and 26.8 kDa) and contained cobalt ions. This enzyme had the optimal temperature of 40°C and was stable up to 50°C. The optimal pH was in the alkaline region higher than pH 10.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/sj.jim.2900514
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    An improved apparatus for the determination of krypton-85 and xenon-133 in an emergency situation (1988)
    Springer
    Journal of radioanalytical and nuclear chemistry 120 (1988), S. 21-27 
    Details
    ISSN: 1588-2780
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Energietechnik
    Notizen: Abstract A simple and portable apparatus was developed for measurements of85Kr and133Xe that would be released into the atmosphere in an emergency situation of nuclear facilities. The method is based on cryogenic adsorption of these gases on charcoal followed by chromatographic separation from other gases. The85Kr and133Xe recovered from atmospheric air are determined separately by liquid scintillation counting. It takes about 1 hour for the stepwise determination of85Kr and133Xe. The atmospheric concentration of 3·10−3 μCi per m3 air (1.1·102 Bq/m3 air) is measurable for both nuclides with 20% counting error.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02037847
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 4
    Digitale Medien
    Digitale Medien
    Tritium concentrations of the deep sea-water in the Japan Sea and the Pacific Ocean (1988)
    Springer
    Journal of radioanalytical and nuclear chemistry 127 (1988), S. 447-456 
    Details
    ISSN: 1588-2780
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Energietechnik
    Notizen: Abstract Tritium concentrations were determined for sea-water samples collected from the Japan Sea and the Pacific Ocean. In the Japan Sea, it was recognized that tritium was distributed around 2000 m in depth. This means that the vertical mixing of water mass is taking place. On the other hand, in the Pacific Ocean, the tritium concentration appears to reach zero at about 1000 m although more than 1 TU concentration are detected for samples collected from deeper water. Hypothetical origins of tritium in the deep water in the Pacific Ocean are discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02166772
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 5
    Digitale Medien
    Digitale Medien
    Analytical method for atmospheric tritium with a portable tritium sampling system (1989)
    Springer
    Journal of radioanalytical and nuclear chemistry 130 (1989), S. 399-407 
    Details
    ISSN: 1588-2780
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Energietechnik
    Notizen: Abstract A portable tritium sampler was developed for the stepwise collections of water vapour (HTO), hydrogen (HT) and hydrocarbons (CH3T) in the atmosphere. First, water vapour was collected in an electronic cooler and an HTO collection column containing 400 g of molecular sieve. Next, dried air was introduced into an HT collection column containing 150 g of palladium catalyst. Hydrogen was then converted to water by catalytic oxidation at room temperature and the resultant water was immediately adsorbed on the molecular sieve bed supporting the catalyst. The remaining gas was finally introduced into a CH3T collection column containing 100 g of molecular sieve through a platinum catalyst column, in which hydrocarbons were burnt at 400°C. The resultant water was adsorbed in the CH3T collection column. The collection efficiencies of water in the HTO, HT and CH3T collection columns were all estimated to be nearly 100%. This newly developed method was found to be useful for the routine tritium monitoring by applying it to actual air samples.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02041358
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 6
    Digitale Medien
    Digitale Medien
    A sensitive method for the determination of tritium in urine (1986)
    Springer
    Journal of radioanalytical and nuclear chemistry 107 (1986), S. 353-359 
    Details
    ISSN: 1588-2780
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Energietechnik
    Notizen: Abstract An analytical procedure was developed for the determination of tritium in urine. The content of contaminants in urine after treatment is reduced markedly so that no influence is expected on tritium measurements by a liquid scintillation counter. The established analytical procedure was successfully applied for urine from the general public in Japan.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02164200
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 7
    Digitale Medien
    Digitale Medien
    Determination of99Tc in coastal seawater collected in Fukuoka, Japan (1995)
    Springer
    Journal of radioanalytical and nuclear chemistry 197 (1995), S. 245-251 
    Details
    ISSN: 1588-2780
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Energietechnik
    Notizen: Abstract Concentrations of99Tc were determined by inductively coupled plasma mass spectrometry (ICP-MS) on coastal seawater in the general environment in Japan. Technetium was enriched on iron hydroxide by repetitive co-precipitation method from a large volume of seawater and separated from impurities by solvent extraction and ion-exchange techniques. The concentrations of99Tc were 1.0 to 7.4 μBq1−1, which was one order of magnitude lower than the level reported on seawater from general environment by beta-ray counting. Concentrations of137Cs determined on the same seawater were 3.7 and 3.9 mBq1−1. The activity ratio of99Tc/137Cs was calculated to be 2.7×10−4. This ratio was very close to the value expected for fallout from nuclear tests.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02036003
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    Recent environmental tritium levels in Japan-II Coastal seawater and lake water (1986)
    Springer
    Journal of radioanalytical and nuclear chemistry 104 (1986), S. 141-150 
    Details
    ISSN: 1588-2780
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Energietechnik
    Notizen: Abstract Tritium concentrations were analyzed for coastal seawater and lake water collected from various places in Japan. Low tritium concentrations were observed for coastal seawater of small islands and it was attributed to a short residence time of the ground-water in such a small island. Tritium concentrations in lake water showed a significant variation. And it was revealed that the size of the lake and its drainage area were the dominant factors controlling the tritium concentrations in lakes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02163257
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    The size distribution of210Po in the atmosphere around Mt. Sakurajima in Kagoshima prefecture, Japan (1998)
    Springer
    Journal of radioanalytical and nuclear chemistry 230 (1998), S. 97-104 
    Details
    ISSN: 1588-2780
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Energietechnik
    Notizen: Abstract The concentration and size distribution of210Po in particulate matters in the atmosphere were measured around the active volcano, Mt. Sakurajima in Kagoshima prefecture, Japan. The samples were collected eight times at four sampling points for the period from June 1994 to January 1996. The highest concentration of210Po was 2940 μBq/m3 at Akamizu located 2 km away from the crater of Mt. Sakurajima. The210Po concentrations decreased with the increase of distance from Mt. Sakurajima. The size distribution curves of210Po in the particulate matters showed that210Po is usually condensed to fine particles smaller than 2 μm in diameter. In addition, it was suggested that the210Po concentration in particulate matters collected at Akamizu was affected by the wind direction over Mt. Sakurajima.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02387453
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    Determination of stable lead isotope ratios in environmental samples: Combination of microwave digestion and ICP-MS (1999)
    Springer
    Journal of radioanalytical and nuclear chemistry 242 (1999), S. 717-720 
    Details
    ISSN: 1588-2780
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie , Energietechnik
    Notizen: Abstract Microwave digestion was applied as pretreatment of environmental samples for the determination of lead isotope ratios by ICP-MS. Microwave digestion decomposed the samples easily and rapidly without lead contamination. The lead isotope ratios could be measured directly by ICP-MS without tedious lead purification, because the influence of the matrix elements on measurements of lead isotope ratios is small enough to be ignored.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02347384
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...