نتایج جستجو برای: l10
تعداد نتایج: 992 فیلتر نتایج به سال:
Oligonucleotide-directed mutagenesis was used to produce a serine 89 to cysteine 89 substitution in the C-terminal globular domain of Escherichia coli ribosomal protein L7/L12. Cys-89 represented the only cysteine residue in the protein. L7/L12Cys89 was overproduced in E. coli and purified. An allele replacement strain was also constructed. Growth of this strain was indistinguishable from that ...
40 nm thick CoPt and FePt films were prepared on oxidized Si substrates with 10 nm MgO underlayers. The maximum coercivity ( ) for CoPt films was found to be 10 kOe after annealing at 700 C for 20–30 minutes (min). Structural analysis showed a significant amount of FCC phase as well as the ordered L10 phase in these films. FePt films showed an abrupt increase of ordered volume fraction and in t...
The oxidation of methanol was studied on a Ag(l10) single-crystal by temperature programmed reaction spectroscopy. The Ag(ll0) surface was preoxidized with oxygen-Ill, and deuterated methanol, CHaOD, was used to distinguish the hydroxyl hydrogen from the methyl hydrogens. Very little methanol chemisorbed on the oxygen-free Ag(2 10) surface, and the ability of the silver surface to dissociativel...
Tuning the lattice strain (εL) is a novel approach to manipulate the magnetic, electronic, and transport properties of spintronic materials. Achievable εL in thin film samples induced by traditional ferroelectric or flexible substrates is usually volatile and well below 1%. Such limits in the tuning capability cannot meet the requirements for nonvolatile applications of spintronic materials. Th...
Monodispersed magnetic nanoparticles self-organised into superlattices onto a substrate are considered to be of real interest in the development of future magnetic storage systems due to their potential ultra-high storage density, higher than 1 Tbit/cm [1]. These particles are coated by organic acids as oleic acid which act as surfactant layer and avoid coalescence and prevent possible growth o...
General features of the manne lysogenic bacterium H24 are described. The bacterial strain was isolated from a sample of North Sea water in 1978 After several consecutive transfers on seawater agar slants spontaneous plaque-formation was observed in 1981 When H24 was grown in bouillon the cultures were found to contain plaque forming units (PFU) at any number between zero and 10%1-', indicating ...
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