Revisiting Pushchino RRAT search using neural network

The search for rotating radio transients (RRAT) at declination from -9o to +42o was carried out in the semi-annual monitoring data obtained on the Large Phased Array (LPA) radio telescope at the frequency of 111 MHz. A neural network was used to search for candidates. 4 new RRATs were detected, having dispersion measures (DM) 5-16 pc/cm3. A comparison with an earlier RRAT search conducted using the same data shows that the neural network reduced the amount of interference by 80 times, down to 1.3% of the initial amount of interferences. The loss of real pulsar pulses does not exceed 6% of their total number.Comment: 7 pages, 2 figures, submitted to A&

Establishment of educational electronic publications as one of the strategic directions of improving the quality of training graduates

Качество обучения зависит от совершенства учебного материала, формы его представления и организации учебного процесса. В традиционной схеме обучения возникает множество проблем, связанных с постоянно возрастающим потоком информации, усложнением знаний, отсутствием иллюстрационного материала. Внедрение компьютера в учебный процесс дает возможность создать богатый справочный и иллюстративный материал в самом разнообразном виде.The quality of training depends on the excellence of educational material, its presentation and organization of educational process. In the traditional scheme of education face many challenges with a constantly increasing flow of information, complexity of knowledge, lack of illustrative material. The introduction of the computer in the learning process makes it possible to create a rich background and illustrative material in the most diverse form

Polarisation-optical model of a controlled random number generator

The subject of the paper is an original model of a tunable optical random number generator. The purpose of the article is to analyse the possibilities of using the proposed model to ensure the protection of the control signals in the projected telecommunication management system of the robotized agro-industrial complex of the Republic of South Ossetia.The research was carried out by methods of mathematical and information-logical modeling. The main results of the study are the information-logical model of the hardware implementation prototype, the descriptive mathematical model of its functioning and the obtained dependences of the quantitative characteristics of the generated random numbers statistical distributions on the main control parameter of the experimental setup.These results can be used in the design and the operation of the remote production facilities monitoring and management telecommunication systems’ components. The possibilities of prototype creating and functioning were demonstrated by visualising the schematic chart of the experimental equipment and by the quantitative estimates of “one” and “zero” signals observation probabilities under the different polarisation rotator orientations relative to the plane of the optical signals detecting system

Methyl Propiolate Cluster Complex (Ph<inf>4</inf>P)<inf>2</inf>[W<inf>6</inf>I<inf>8</inf>(C≡C–C(O)OCH<inf>3</inf>)<inf>6</inf>]

© 2019, Pleiades Publishing, Ltd. Abstract: A new organometallic iodide cluster complex (Bu4N)2[W6I8(C≡C–C(O)OCH3)6] (I), analogous to the previously described (Bu4N)2[Mo6I8(C≡C–C(O)OCH3)6], was obtained by the reaction of (Bu4N)2[W6I14] with silver methyl propiolate AgC≡C–C(O)OCH3. The crystal structure was established for the tetraphenylphosphonium salt (Ph4P)2[W6I8(C≡C–C(O)OCH3)6] (II). According to X-ray diffraction (CIF file CCDC no. 1829205), tungsten atoms in II are coordinated by terminal carbon atoms of methyl propiolate ligands at W–C distances of 2.220(12)–2.268(14) Å. The methyl propiolate complexes were characterized by electrospray mass spectrometry, 1H and 13C NMR spectroscopy, elemental analysis, and IR spectroscopy