Mostrando 381 - 400 Resultados de 1,902 Para Buscar '"sulphur"', tiempo de consulta: 0.56s Limitar resultados
  1. 381
  2. 382
    “…The fodder yield and quality largely depend on soil moisture and nutrient supply especially sulphur (S), a key nutrient for improving groundnut fodder quality. …”
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  3. 383
    por McCrudden, F. H., Fales, H. L.
    Publicado 1912
    “…In spite of the fact that the absolute quantity of nitrogen was low, the distribution of nitrogen and sulphur among the various nitrogen and sulphur constituents of the urine was in the normal ratio. …”
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  4. 384
  5. 385
    “…Among important plant nutrients, nitrogen (N) and sulphur (S) are known essential elements for growth, development, and various physiological functions in plants. …”
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  6. 386
  7. 387
  8. 388
    “…In this study, we present the occurrence of a sulphur-oxidizing symbiosis in a metazoan belonging to the phylum Cnidaria in which this event has never been described previously. …”
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  9. 389
    “…Vivianite formation was favoured by an elevated iron availability through a lower degree of sulphidisation and was present at a molar ratio of total sulphur to reactive iron smaller than 1.1, only. A longer lasting burden of sediments by organic matter, i.e. due to eutrophication, favours the release of sulphides, and the formation of insoluble iron sulphides leading to a lack of available iron and to less or no vivianite formation. …”
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  10. 390
  11. 391
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  14. 394
    “…MATERIALS AND METHODS: Sulphur doped carbon dots (S‐CDs) was prepared via a hydrothermal synthetic route and was characterized by transmission electron microscopy, X‐ray photoelectron spectroscopy and so on. …”
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  15. 395
    “…The contents of lysine, sulphur amino acids and threonine were variable. The first one, close to the current recommendations (Medium, M; 8.1, 5.8 and 6.9 g/kg DM for lysine, sulphur amino acids and threonine, respectively), and two other levels were on average 15% higher (High, H; 9.4, 6.6 and 7.8 g/kg DM for lysine, sulphur amino acids and threonine, respectively) or lower (Low, L; 6.7, 4.9 and 5.7 g/kg DM for lysine, sulphur amino acids and threonine, respectively). …”
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  16. 396
  17. 397
    por Ford, Thomas A.
    Publicado 2021
    “…The structures of a number of dimers of sulphur dioxide and ozone were optimized by means of a series of ab initio calculations. …”
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  18. 398
    “…Meanwhile, the regular planar pentacoordinate boron systems are rarely reported. Hereby, a sulphur-bridged BAl(5)S(5)(+) system with a five-pointed star configuration and 17 counting electrons is identified at the global energy minimum through the particle-swarm optimization method, based on the previous recognition on bridged sulphur as the peripheral tactics to the stable planar tetracoordinate carbon and boron. …”
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  19. 399
    por Kang, Jinxing, Wang, Yayun, Qiu, Yunfei
    Publicado 2022
    “…The effect of Fe(3+) ions on the ocean manganese nodule reductive leaching in imitated sulphuric acid solutions was investigated. This work is presented in two courses, including the influence of Fe(3+) ions on valuable metal extraction and the electrochemical reductive dissolution of manganese nodules. …”
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  20. 400
    por Ueda, Masafumi, Mazaki, Yasuhiro
    Publicado 2022
    “…The two-tub-shaped TTP formed a hexagonal geometry via a sulphur linker, and TC[2]TTP adopted a honeycomb structure with columnar stacking in the crystal structure. …”
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