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6 articles for “S.P. Lebedev”
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Research ArticleOpen accessIn the author namesModel of Adsorption on Epitaxial Single-Layer GrapheneDavydov Sergei, Lebedev AlexanderModel of adsorption on graphene is built by two steps: For the beginning density of states for the graphene monolayer on solid substrate is calculated, then adsorbed atom is placed on the such constructed epitaxial graphene. Both metallic and semiconducting substrates are considered. Charge transfer between adatom and epitaxial graphene is estimated. Effects of graphene layer and substrate on the … …American Journal of Applied Sciences, Vol. 12, Issue 5 · 13 Jul 2015 · 5,982 accessesView PDFCite
Research ArticleOpen accessIn the author namesAcquisition and Research of the p-3C-SiC Epitaxial Layers Based on the 6H-SiC Semi-Insulating SubstratesLebedev Alexander Alexandrovich, S.P. Lebedev, E.V. Bogdanova et al.By now we know almost nothing about works on production of p-3C-SiC. Probably, it is due to the fact that the basic acceptor impurity (aluminium) accumulates on the interfaces of the twins and other structural defects in the 3C film and it is electrically neutral. We managed to produce the highly doped layers p-3C based on the conducting substrates of … …American Journal of Applied Sciences, Vol. 12, Issue 3 · 27 May 2015 · 6,466 accessesView PDFCite
Research ArticleOpen accessIn the author namesSTUDY OF THE POSSIBILITY OF POLYTYPE 3C SILICON CARBIDE BULK CRYSTALS GROWING FOR USE IN POWER DEVICESLebedev Alexander Alexandrovich, Bulat Pavel ViktorovichDue to its electro-physical parameters, the silicon carbide is a promising material for power devices, including the microwave range. In recent years there has been considerable progress in the development of power devices, based on SiC. Serious problem, which hinders the widespread commercialization of SiC bipolar power devices, is the p-n structures degradation during high densities of passing forward current. … …American Journal of Applied Sciences, Vol. 11, Issue 10 · 5 Dec 2014 · 6,348 accessesView PDFCite
Research ArticleOpen accessIn the author namesJOB INSECURITY AND EMPLOYEES’ MOTIVATION TO ENGAGE IN PROFESSIONAL EDUCATIONAndrei B. Ankudinov, Oleg V. LebedevCurrent economic slowdown in Russia can cause significant problems with employment in a number of national economy sectors. The article presents results of econometric analysis of employees’ confidence levels in finding comparable new jobs in case of termination of current employment as well as of probability to be temporarily laid off without pay, projected onto employees’ participation in professional education … …American Journal of Applied Sciences, Vol. 11, Issue 5 · 15 Mar 2014 · 6,647 accessesView PDFCite
Research ArticleOpen accessIn the author namesEmpirical Analysis of Employees with Tertiary Education Occupational ImbalancesAndrei B. Ankudinov, Oleg V. LebedevHigh percentage of graduates (among the highest in the world) with university degrees combined with unacceptably low level of utilization of acquired qualifications and generally low quality of education in the majority of Russian universities result in huge structural imbalances. The article presents quantitative estimates of disproportions between the educational levels of employees with higher education and their professional occupation … …American Journal of Applied Sciences, Vol. 10, Issue 10 · 10 Oct 2013 · 6,808 accessesView PDFCite
InvestigationOpen accessIn the author namesMorphogenetic and Biochemical Study on University Common Bean CollectionBeibitgul Zhumabaeva, Erika Dzhangalina, Zaure Aytasheva et al.This research has been conducted to reveal the outcomes of rotation of crops in mountain and steppe districts near Almaty. The main morphogenetic characteristics have been investigated for the collection of representatives of common bean, Phaseolus vulgaris L. by using samples from various countries such as Kazakhstan, USA, China, Czech Republic, Poland, Turkey and Russia under different climate and soil … …OnLine Journal of Biological Sciences, Vol. 17, Issue 4 · 28 Nov 2017 · 7,048 accessesView PDFCite