نتایج جستجو برای: sb
تعداد نتایج: 14153 فیلتر نتایج به سال:
Single crystals of trizirconium nickel hepta-anti-monide were synthesized from the constituent elements by arc-melting. The compound crystallizes in a unique structure type and belongs to the family of two-layer structures. All crystallographically unique atoms (3 × Zr, 1 × Ni and 7 × Sb) are located at sites with m symmetry. The structure contains 'Zr(2)Ni(2)Sb(5)' and 'Zr(4)Sb(9)' fragments a...
Expressiveness Following the approach outlined by Meijer et. al. in [3], our language has basic built-in combinators (e.g. fold) that are sufficient for expressing a number of common programming tasks. For programs that lie outside the scope of these combinators we provide a cost monad that allows programmers to express runtime information about arbitrary Idris programs, and then lift those run...
The syntheses and distributions of binary R(5)Pn(3) phases among the hexagonal Mn(5)Si(3) (M), and the very similar orthorhombic beta-Yb(5)Sb(3) (Y) and Y(5)Bi(3) (YB) structure types have been studied for R = Y, Gd-Lu and Pn = Sb, Bi. Literature reports of M and YB-type structure distributions among R(5)Pn(3) phases, R = Y, Gd-Ho, are generally confirmed. The reported M-type Er(5)Sb(3) could n...
مایکوتوکسینها متابولیتهای ثانویه قارچهای رشتهای میباشند و از نظر ساختمانی غالباً هیدروکربنهای حلقوی میباشند. هدف از این مطالعه بررسی اثرات از بین برندگی پلاسما جت سرد آرگون بر اکراتوکسین A تولید شده توسط سویههای آسپرژیلوس نیگری میباشد. از محصولات گندم، ذرت، جو دوسر، آرد و برنج از شمال کشور ایران نمونهگیری انجام شد. گونههای قارچی جهت شناسایی روی محیط چاپکس و جهت استخراج اکراتوکسین A رو...
The bonding in the relatively complex La12Mn2Sb30 alloy structure is analyzed with a retrotheoretical/building up process, implemented through a molecular orbital analysis of the various sublattices and the composite structure. In the antimony part of La12Mn2Sb30 there are three relatively noninteracting networks: a three-dimensional Sb20 sublattice, an Sb6 strip, and a onedimensional array of ...
The use of histone deacetylase inhibitors (HDACI), a promising new class of antineoplastic agents, in combination with cytotoxic agents, such as ionizing radiation and anticancer drugs, has been attracting attention. In this study, we found that sodium butyrate (SB), a widely studied HDACI, remarkably enhanced the cell killing effect of psoralen plus UVA (PUVA) in several cancer cell lines, inc...
We present theoretical studies of relaxations of monoatomic SA, SB (b) and SB (n) steps on the diamond(100)-(2×1) surface employing an ab initio molecular dynamics simulation method that is based on density functional theory. Stable dimer structures are found in the upper and lower planes of the step surfaces in agreement with experiment. Significant atomic relaxations occur near the step edges...
The growth of pseudomorphically strained GaAs1 ySby layers with high Sb-mole fractions of yX0.35 are desired on GaAs substrates for making lasers and detectors in the mid-infrared range. The effect of gas-phase precursor chemistry on the strained-layer Sbincorporation efficiency in metalorganic vapor phase epitaxy (MOVPE) was determined using four combinations of ethyland methylGa and Sb precur...
The distribution of antimony (Sb) in topsoil and moss (Dicranum angustum) in disturbed and undisturbed areas, as well as coal and gangue, in Ny-Ålesund, Arctic was examined. Results show that the weathering of coal bed could not contribute to the increase of Sb concentrations in topsoil and moss in the study area. The distribution of Sb is partially associated with traffic and historical mining...
High-quality SiGe and Ge thin films were grown on Si substrates by molecular-beam epitaxy using a technique that combines SiGe composition grading and Sb surfactant mediation. Both transmission electron microscopy and Schimmel defect etch measurements show that the Sb surfactant-mediated SiGe graded buffer layers have lower dislocation densities than those without an Sb surfactant. A systematic...
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