Assume the set S = {p 1, …, p n} is a set of atomic formulas, and F(S) is a set of all classical propositional logic formulas, while basic operations are disjunction ∨, conjunction ∧, negation ¬ and implication →. We employ ╞ A to express that A is theorem. The set of all simple conjunctive forms in F(S) is denoted by Scj(S)
Research Assistant Professor of Materials Science, University of Washington - Citado por 24,559 - Nanomaterials - Solar Cells - Lithium Batteries - Chemiresistive Sensors
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A social constructionist analysis of modern Chinese entrepreneurship
In this study, we present a detailed investigation of luminescence properties of a blue light-emitting diode using InGaN/GaN (indium component is 17.43%) multiple quantum wells as the active region grown on patterned sapphire substrate by low-pressure metal-organic chemical vapor deposition (MOCVD). High-resolution X-ray diffraction (HRXRD), atomic force microscopy (AFM), scanning electron
Jan 05, 2021 · Eighteen (1%; 95% CI 0·61–1·65) of 1590 COVID-19 cases had a history of cancer, which seems to be higher than. the incidence of cancer in the overall Chinese population (285·83 [0·29%] per 100 000 people, according to 2015 cancer. epidemiology statistics). Lung cancer was the most frequent type (5/18 patients)
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Atomically thin 2D materials have drawn great attention due to their many potential applications. We herein report two novel structures of 2D C4N identified by first-principles calculations in combination with a swarm structure search. These two structures (with symmetry of Pm and P2/m) are almost degenerate in energy (with only 4 meV/atom difference) and exhibit quite similar structural
Oct 31, 2020 · Canadian court officials are investigating a video by a popular pro-China YouTuber about Meng Wanzhou's extradition "trial" in Vancouver, which includes footage filmed illicitly inside the court
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Nov 08, 2019 · Groundwater level fluctuations have a significant effect on the hydrogeochemical processes in the aeration zone and aquifers, which is closely related to human daily life. To better determine the details of hydrogeochemical evolution during groundwater level fluctuations, a large column simulation experiment was carried out. Results show that Ca2+, Na+, NO3− and HCO3− are …
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Jul 22, 2016 · On the basis of the ARPES results, the Fermi velocity is estimated to be about (4.4 ± 0.2) × 10 5 m/s for the pristine sample, although it decreases to about (3.9 ± 0.5) × 10 5 m/s and (3.4 ± 0.5) × 10 5 m/s for the 600-L and 1200-L oxygen–intercalated silicene
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Jul 20, 2015 · Meng Lei (孟蕾) 1,2, Wang Ye-Liang ... They found that the Dirac cone of silicene can be recovered by intercalating alkali metal atom between silicene and Ir substrate as shown ... Qiu J, Cheng P, Wu K and Meng S 2013 Phys. Rev. Lett. 110 085504. Crossref Google Scholar. Tritsaris G A, Kaxiras E, Meng S and Wang E 2013 Nano Lett. 13 2258
In order to determine the projected coordinate origin in the cone-beam CT scanning system with respect to the Feldkamp-Davis-Kress (FDK) algorithm, we propose a simple yet feasible method to accurately measure the projected coordinate origin. This method was established on the basis of the theory that the projection of a spherical object in the cone-beam field is an ellipse
The Journal of Physical Chemistry Letters. 3190-3196. PMID 31144818 DOI: 10.1021/acs.jpclett.9b01323. 0.68. 2019. Zhou X, Zhang RW, Zhang Z, Ma DS, Feng W, Mokrousov Y, Yao Y. Fully Spin-Polarized Nodal Loop Semimetals in Alkaline Metal Monochalcogenide Monolayers. The Journal of Physical Chemistry Letters. 3101-3108
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