nel dizionario PONS
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tedesco
iso·tope [ˈaɪsətəʊp, ingl am -toʊp] SOST CHIM
- isotope
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iso·tope ˈshift SOST CHIM, FIS
- isotope shift
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iso·tope sepa·ˈra·tion SOST CHIM, FIS
- isotope separation
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ˈiso·tope pat·tern SOST CHIM, FIS
- isotope pattern
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- radioactive isotope/material
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tedesco
inglese
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- isotope
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Esempi dal dizionario PONS (verificati dalla Redazione)
Esempi monolingue (non verificati dalla Redazione di PONS)
Molybdenum isotopes with mass numbers 111 and up all have half-lives of approximately.15 s.
en.wikipedia.org Ac, were found in nature and the others were produced in the laboratory; only the three natural isotopes are used in applications.
en.wikipedia.org That they did not observe kinetic isotope effect using -deutrated acrylonitrile also supported this statement.
en.wikipedia.org There may thus be a small isotope effect even if the first step is rate-determining.
en.wikipedia.org The isotopes of plutonium range in mass number from 228 to 247.
en.wikipedia.org Esempi dal web (non verificati dalla Redazione di PONS)
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www.uni-kiel.de The abundance of the stable isotope 13C is about 1.11 %, whereas the radioactive 14C is present in only very small quantities of 1.176 x 10-12 atoms per atom 12C.
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Die natürliche Häufigkeit des zweiten stabilen Isotops 13C beträgt etwa 1,11 %, die Konzentration des radioaktiven 14C liegt hingegen nur bei ca. 1,176 x 10-12 Atomen je 12C Atom.
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www.uni-bremen.de Where the microorganisms only found minimum amounts of sulfate available, the lab cultures retained amounts of methane that were enriched with the lighter isotope carbon 12.
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Wenn den Mikroorganismen nur sehr wenig Sulfat zur Verfügung stand, blieb in den Laborkulturen, wie auch im Meeresboden beobachtet, Methan zurück, dass mit dem leichten Isotop Kohlenstoff-12 angereichert war.
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www.ptb.de In order to be able to come to a more accurate conclusion here as to how long nuclear waste which contains this isotope will probably radiate, researchers from various institutes have joined forces:
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Um eine genauere Aussage darüber treffen zu können, wie lange nuklearer Abfall, der dieses Isotop enthält, voraussichtlich strahlt, haben sich Forscher verschiedener Institute zusammengeschlossen:
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www.rptc.de For this procedure, the patient is injected with contrast medium marked with a short-lived radioactive isotope. This enables both precise tumor localization ( CT ) and identification of metabolically active tumor fractions ( with the isotope marking areas of increased metabolic activity in the tumor or metastasis ) to be accomplished in a single session.
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Hierbei wird dem Patienten ein Kontrastmittel injiziert, das mit einem kurzlebigen radioaktiven Isotop markiert ist, so dass in einer einzigen Untersuchung sowohl die genaue Tumorlokalisation ( CT ) als auch die tumoraktiven Anteile ( Isotop, durch die erhöhte Stoffwechselaktivität des Tumors bzw. der Metastase ) identifiziert werden.
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www.helmholtz-berlin.de For the use in a research reactor one has to enrich the 235U-component in a complicated procedure to a concentration of approximately 20 %; the rest remains the isotope 238U, which does not fission.
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Um als Kernbrennstoff in Forschungsreaktoren nutzbar zu sein, wird der 235U-Anteil in einem komplizierten Prozess auf eine Konzentration von etwa 20 % erhöht ( angereichert ); der Rest besteht wieder aus dem Isotop 238U.
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