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Abstract We present a comprehensive DFT study of size-dependent atomic and electronic properties antimony selenide ( Sb 2 Se 3 ) nanowires in three main crystallographic directions. Our calculations show significant enhancement the band gap wires oriented [100] [010] directions due to confinement effects, however [001] is reduced with respect bulk. attribute this anomaly reduction surface recon...
As high-throughput genetic marker screening systems are essential for a range of genetics studies and plant breeding applications, the International RosBREED SNP Consortium (IRSC) has utilized the Illumina Infinium® II system to develop a medium- to high-throughput SNP screening tool for genome-wide evaluation of allelic variation in apple (Malus×domestica) breeding germplasm. For genome-wide S...
H(a) is h times a generator of wr2,.(S2t1-). Thus Hmay be regarded as.a generalization of. the Hopf invariant. Let R,1 be the rotation group of SI-', 7r the mapping of RT_i into SIwhich sends each rotation r into the image under r of a fixed point yo e St-'. If p < 2r 2 andf is a mapping of SP-1 into R, 1, thenf defines a mapping F: SPX SI -I SI-' of type (7ra, 1), where a is the element of 7rp...
Received ; accepted – 2 – ABSTRACT Tunable narrow-band, emission-line surveys have begun to show the ease with which star forming galaxies can be identified in restricted redshift intervals to z ∼ 5 with a 4m class telescope. These surveys have been carried out with imaging systems at the Cassegrain or Nasmyth focus and are therefore restricted to fields smaller than 10 ′. We now show that tuna...
Friction measurements have been performed on microcrystalline, ultrananocrystalline, and diamond-like carbon DLC films with natural diamond counterfaces in the temperature range of 8 K to room temperature. All films exhibit low friction 0.1 in air at room temperature. In ultrahigh vacuum, microcrystalline diamond quickly wears into a high friction state 0.6 , which is independent of temperature...
New layered magnetic materials, (MCl)Ca2Ta3O10 (M = Cu, Fe), have been prepared by ion-exchange reactions of non-magnetic perovskite derivatives, ACa2Ta3O10 (A = Rb, Li), in corresponding anhydrous molten salts. Powder x-ray diffraction patterns of the products are successfully indexed assuming tetragonal symmetry with cell dimensions a = 3.829 Å and c = 15.533 Å for Cu, and a = 3.822 Å and c =...
The susceptibility of ~Sm0.65Sr0.35!MnO3 shows an unusual temperature dependence above the Curie temperature which is attributed to the presence of small manganese-ion clusters with S'9. A field-induced transition is observed in the paramagnetic state, which corresponds to a doubling of the cluster size and an increase of the strength of the interaction between them. The continuous transition f...
The paper presents numerical modelling and an operational experiment to forge a slab ingot P40N from 55NiCrMoV7 tool steel the procedure for optimization of its production. aim simulation forging was verify existing plate conventional polygonal 8K with shape surfaces. effect on achievement required reduction strain after cross section plate, final dimensions approximately 1010 mm width × 310 th...
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