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搜索结果: 1-15 共查到理学 Lithium相关记录33条 . 查询时间(0.091 秒)
Hothouse climates in Earth's geologic past, such as the Eocene epoch, are thought to have been caused by the release of large amounts of carbon dioxide and/or methane, which had been stored as carbon ...
Ore-forming fluid trapped in vein quartz as fluid inclusions from tungsten ore at the Takatori mine was extracted by a crush-leach technique. The trace metal content and isotopic composition (δ7Li an...
We study the chirality of periodically poled MgO-doped lithium niobate (MgO:PPLN) by electro-optic (EO) effect. It shows that optical propagation is reciprocal in MgO:PPLN when quasi-phase-matching (Q...
Basalts from Logudoro, Sardinia (Italy), showing geochemical features similar to EM1-type mantle source, have been analyzed for their Li isotopic composition to provide data related to a heretofore u...
Aims: The effects of rotation and magnetic fields on the surface abundances of solar-type stars are studied in order to investigate whether the reported difference in lithium content of exoplanet-host...
We present results from a spectroscopic study of the very low mass members of the Southern open cluster Blanco 1 using the Gemini-N telescope. We obtained intermediate resolution (R~4400) GMOS spectra...
We explore a nuclear physics resolution to the discrepancy between the predicted standard BBN abundance of 7Li and its observational determination in metal-poor stars. The the- oretical 7Li abundanc...
The immense interest in carbon nanomaterials continues to stimulate intense research activities aimed to realize carbon nanowires, since linear chains of carbon atoms are expected to display novel and...
Aims. We determine the age and mass of the three best solar twin candidates in open cluster M67 through lithium evolutionary models.Methods. We computed a grid of evolutionary models with non-standard...
We explore a nuclear physics resolution to the discrepancy between the predicted standard BBN abundance of 7Li and its observational determination in metal-poor stars. The the- oretical 7Li abundanc...
We present the discovery of a super lithium-rich K giant star, G0928+73.2600. This red giant (T_eff = 4885 K and log g = 2.65) is a fast rotator with a projected rotational velocity of 8.4 km/s and an...
We report the discovery of a transiting planet orbiting the star TYC 2-1155-1. The star, WASP-32, is a moderately bright (V=11.3) solar-type star (Teff=6100 +- 100K, [Fe/H] = -0.13 +- 0.10).
Previous surveys in a few metal-poor Globular Clusters (GCs) showed that the determination of abundances for Li and proton-capture elements offers a key tool to address the intra-cluster pollution sce...
Scientists have a long and unsuccessful history of attempting to convert hydrogen to a metal by squeezing it under incredibly high and steady pressures.Metallic hydrogen is predicted to be a high-temp...
βCoronae borealis:lithium and cerium contribution to the blend at 6708 A。

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