Information om | Engelska ordet ABUNDANCES

Exempel på hur man kan använda ABUNDANCES i en mening

• The objectives for this mission were to perform a lunar soft landing (in an area well removed from the maria to provide a type of terrain photography and lunar sample significantly different from those of other Surveyor missions); obtain postlanding TV pictures; determine the relative abundances of chemical elements; manipulate the lunar material; obtain touchdown dynamics data; and obtain thermal and radar reflectivity data.
• A stimulus to the development of the theory of nucleosynthesis was the discovery of variations in the abundances of elements found in the universe.
• This quantity can vary significantly between samples because the sample's origin (and therefore its radioactive history or diffusion history) may have produced combinations of isotopic abundances in varying ratios.
• To calculate the age of formation of astronomical objects, the observed ratios of abundances of heavy radioactive and stable nuclides are compared to the primordial ratios predicted by nucleosynthesis theory.
• In 1938, Swiss mineralogist Victor Goldschmidt and his colleagues compiled a list of what they called "cosmic abundances" based on their analysis of several terrestrial and meteorite samples.
• Ladyman did work placements at Rothamsted Experimental Station in Harpenden and at Ministry of Agriculture, Fisheries and Food in Liverpool, before studying for a PhD awarded by the University of Strathclyde for researching natural isotopic abundances of elements to enable prediction of soil development when at the Natural Environment Research Council's radiocarbon laboratory, in the Scottish Universities Research and Reactor Centre, East Kilbride.
• They used the Very Large Telescope (VLT) at the European Southern Observatory in Paranal, Chile for high-resolution optical spectroscopy to determine elemental abundances.
• The team combined data on elemental abundances produced by the Burbidges with Hoyle's hypothesis that all chemical elements might be produced in stars by a series of nuclear reactions, and Fowler's laboratory experiments on those reactions.
• Magic number shell effects are seen in ordinary abundances of elements: helium-4 is among the most abundant (and stable) nuclei in the universe and lead-208 is the heaviest stable nuclide (at least by known experimental observations).
• Greenstein did important work in determining the abundances of the elements in stars, and was, with Maarten Schmidt, among the first to recognize quasars as compact, very distant sources as bright as a galaxy.
• HERMES is mainly being used for the 'Galactic Archaeology with Hermes' (GALAH) Survey, which aims to reconstruct the history of our galaxy's formation from precise multi-element (~25 elements) abundances of 1  million stars derived from HERMES spectra.
• He is one of the great joyful lamenters of all time, endlessly documenting his anguish, throbbing pains, mistaken dreams, shortages of faith, abundances of ecstatic loves, and humiliations.
• The arrival of cool, formerly deep water associated with internal bores into warm, shallower waters corresponds with drastic increases in phytoplankton and zooplankton concentrations and changes in plankter species abundances.
• Stars and nebulae with relatively high abundances of heavier elements are called "metal-rich" when discussing metallicity, even though many of those elements are called nonmetals in chemistry.
• Compared to similar sampling in the more northern Bay of Plenty there were higher abundances in the Hikurangi Margin of many crustaceans and worms such as mud dragons, ostracods, nematode worms, copepods, tanaidacea, segmented worms, isopods and amphipods.
• Notably though, the Orgueil meteor is highly enriched in (volatile) mercury - undetectable in the solar photosphere, and this is a major driver of the "mercury paradox" that mercury abundances in meteors do not follow its volatile nature and isotopic ratios based expected behaviour in the solar nebula.
• The metallicity of the star matches the abundances found in the Hyades, indicating that the metals (elements heavier than helium) in the atmosphere were not acquired because it engulfed planetary material.
• However, this is disputed, with astronomer Andrew McWilliam (1990) finding normal abundances from an s-process.
• This is likely due to the fall breeding timing of ringed salamanders, which allows them to prey on individuals of other spring breeding species that are still in their early life stages such as spotted salamanders, marbled salamanders, red-spotted newts, and many other anuran species, thus decreases their abundances.
• Although the event is inferred to have constituted a mass extinction, due in part to the great difficulty in surveying microscopic organisms' abundances, and in part to the extreme age of fossil remains from that time, the Great Oxidation Event is typically not counted among conventional lists of "great extinctions", which are implicitly limited to the Phanerozoic eon.

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