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4 days ago · Exfoliation of graphite and the discovery of the unique properties of graphene─graphite’s single layer─have raised significant attention to layered compounds as potential precursors to 2D materials with applications in optoelectronics, spintronics, sensors, and solar cells. In this work, a new orthorhombic polymorph of yttrium bromide, oC16-YBr3 was synthesized from yttrium and CBr4 in a ...
5 days ago · We show that, for one-dimensional discrete Schrödinger operators, stability of Anderson localization under a class of rank one perturbations implies absence of intervals in spectra. The argument is based on well-known result of Gordon and Simon, combined with a way to consider perturbations whose ranges are not necessarily cyclic. The main application of the results is showing that a class of ...
11 hours ago · Nicolae Ceaușescu ( / tʃaʊˈʃɛskuː / chow-SHESK-oo, Romanian: [nikoˈla.e tʃe̯a.uˈʃesku] ⓘ, 26 January [ O.S. 13 January] 1918 – 25 December 1989) was a Romanian communist politician and statesman. He was the general secretary of the Romanian Communist Party from 1965 to 1989, and the second and last communist leader of Romania.
3 days ago · Leonid Simanovsky holds just under 2% of the gas company Novatek. He met fellow billionaire Leonid Mikhelson, his partner in Novatek, in the late 1980s, when he worked at Mikhelson's...
4 days ago · The density and mechanical properties of the composite samples were examined to determine the impact of waste fiberglass (WFG) concentration in it. Washed river aggregates were replaced with WFG in various ratios in our laboratory tests. Concrete class C16/20 was utilized, having 0.35–0.7 w. % WFG and 2–10% slag.
5 days ago · The Leonid meteor shower is an annual shower that occurs between the 14th and 20th of November. It is the result of debris left behind by the passage of Comet Tempel-Tuttle as it moves in its orbit about the Sun.
4 days ago · Leonid Mikhelson is the founder and chairman of natural gas producer Novatek. In 2017 he bought a 17% stake in petrochemical company Sibur from Kirill Shamalov, Putin's reported former son-in-law...
