{"id":663,"date":"2013-06-25T22:47:09","date_gmt":"2013-06-25T18:47:09","guid":{"rendered":"http:\/\/nanobuild.ru\/en_EN\/?p=663"},"modified":"2014-06-25T22:50:19","modified_gmt":"2014-06-25T18:50:19","slug":"nanobuild-3-2014-pages-64-75","status":"publish","type":"post","link":"https:\/\/nanobuild.ru\/en_EN\/nanobuild-3-2014-pages-64-75\/","title":{"rendered":"Nanobuild-3-2014-pages-64-75"},"content":{"rendered":"

Pages:\u00a0\u00a0 64-75<\/strong><\/p>\n

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Results of research in the area of nanotechnologies and nanomaterials. Part 3<\/strong><\/p>\n

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Authors:<\/strong> \u00a0KARPOV Alexey Ivanovich, Ph.D. in Engineering, referent, International Academy of Engineering; Gazetny str., 9, bld. 4, 125009, Moscow, Russian Federation, e-mail: info@nanobuild.ru<\/p>\n

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Extended Abstract:\u00a0 <\/strong>To popularize scientific achievements in construction the main results of<\/p>\n

Russian and foreign scientists\u2019 research are published in the form of abstract. The research \u00abStability of magnetic states of metal nanosystems\u00bb has developed multivariable theory of transition state for magnetic systems. The expression for the coefficient of magnetic transition rate in systems with arbitrary degrees of freedom was obtained. The algorithms to find the way with the minimal energy gap in multidimensional configuration space, localization of saddle points in multidimensional energy zone and to calculate magnetic states life spans have been developed.<\/p>\n

According to non-collinear generalization of Aleksander-Andersen model \u00abmagnetic theorem on forces\u00bb was proved. Using this theorem analytical expressions for energy gradient at arbitrary point of configuration space were deduced, that provided qualitative decrease of self-matched computation time. In the research \u00abRectification of nano- and microparticles in rotating spiral frames when analyzing polydispersed samples\u00bb method of flowing rectification of particles in transverse field of centrifugal forces, in planetary centrifuges equipped with rotating frames (RF) was developed. The application of the method was broaden: the opportunity to divide submicroscopic particles by changing geometry of frame drum without<\/p>\n

increasing rotation speed was demonstrated. The use of cylindric RF with symmetrical flange made it possible to increase efficiency of rectification and extract practically monodisperse fractions of particles from their mixture. For the first time flowing rectification in transverse magnetic field was used to extract weight fractions of the particles which sizes are 50\u2013300 nm, 300\u20131000 nm, 1\u201310 \u03bcm and 10\u2013100 \u03bcm from dust samples for further analysis.<\/p>\n

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Key words: <\/strong>nanosystem, nanostructure, nanoparticles, nanotechnologies.<\/p>\n

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References:<\/strong><\/p>\n

1. Bessarab P.F. <\/em>Ustojchivost’ magnitnyh sostojanij metallicheskih nanosistem [Stability of magnetic states of metal nanosystems] Ph.D. thesis. Electronic library of theses [electronic source]. Available at: http\/\/www.dslib.net (date of access: 30.04.2014).<\/p>\n

2. Ermolin M.S. <\/em>Frakcionirovanie nano- i mikrochastic vo vrashhajushhihsja spiral’nyh kolonkah pri analize polidispersnyh obrazcov [Rectification of nano- and microparticles in rotating spiral frames when analyzing polydispersed samples] Ph.D. thesis. Electronic library of theses [electronic source]. Available at: http\/\/www.dslib.net (date of access: 30.04.2014).<\/p>\n

3. Gusev B.V. <\/em>Development of nanotechnologies \u2013 the most important technological direction<\/p>\n

in construction. Nanotehnologii v stroitel\u2019stve = Nanotechnologies in Construction. 2011. Vol. 3, no. 2. pp. 6\u201320. Available at: http:\/\/nanobuild.ru\/ru_RU<\/a> (date of access: 30.04.2014).<\/p>\n

Full text in PDF format (64-75)<\/strong><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"