Theory of differential inclusions and its application in mechanics

The following chapter deals with systems of differential equations with discontinuous right-hand sides. The key question is how to define the solutions of such systems. The most adequate approach is to treat discontinuous systems as systems with multivalued right-hand sides (differential inclusions). In this work three well-known definitions of solution of discontinuous system are considered. We will demonstrate the difference between these definitions and their application to different mechanical problems. Mathematical models of drilling systems with discontinuous friction torque characteristics are considered. Here, opposite to classical Coulomb symmetric friction law, the friction torque characteristic is asymmetrical. Problem of sudden load change is studied. Analytical methods of investigation of systems with such asymmetrical friction based on the use of Lyapunov functions are demonstrated. The Watt governor and Chua system are considered to show different aspects of computer modeling of discontinuous systems

Angular distribution of muons produced by cosmic ray neutrinos in rock

Measurement of the upgoing muons flux, produced by cosmic ray neutrinos is aiming at: (1) search for neutrino oscillation; (2); search for extraterrestrial neutrinos from local sources; and (3); search for any hypothetical neutral penetrating radiation different from neutrinos. Experimental data of the Baksan underground telescope on intensity of upward muons for three years of living time, was analyzed having in mind mainly neutrino oscillation

КОНЦЕПЦІЯ БАНК 3.0: ГЛОБАЛЬНІ ТЕНДЕНЦІЇ ТА НАСЛІДКИ

Objective is to make the review of the banking industry development to identify theoretical and practical areas of transformations under the concept Bank 3.0.Results. Theoretical and practical shifts occured in modern banking sector in the conditions of Bank 3.0 concept implementation are identified. Background of the modern transformation in the banking industry on a global scale is identified, the role and extent of structural changes in the banking sector is assessed and features of the modern business models of banks are identified.Originality. Theoretical framework of banking transformations as financial intermediaries is developed. Distinguished features of the bank business–model in the future including high technology, giditalization of commercial activity, transformation of banking infrastructure, banking sector integration with social networks, instant messengers and Internet platforms, are justified.Practical relevance.  Identified features of the bank business–model can be used in the activities of banking developing the strategy and tactics to distribute banking services.Исследованы особенности функционирования банков в разрезе различных концепций ведения банковского бизнеса. Осуществлен анализ глобальных трендов банковского бизнеса и их последствий. В порядке научной дискуссии сформулированы характерные черты банка будущего, среди которых выделены следующие: высокая технологичность, информатизация деятельности, трансформация банковской инфраструктуры, интеграция банковской сферы с социальными сетями, мессенджерами и интернет–платформами. Сделан вывод, что будущее банкинга за клиенториентированными и высокотехнологичными банками.Досліджено особливості функціонування банків у розрізі різних концепцій ведення банківського бізнесу. Здійснено аналіз глобальних трендів банківського бізнесу та їх наслідків. У порядку наукової дискусії сформульовано характерні риси банку майбутнього, серед яких виокремлено наступні: висока технологічність, інформатизація діяльності, трансформація банківської інфраструктури, інтеграція банківської сфери з соціальними мережами, мессенджерами і інтернет–платформами. Аргументовано, що майбутнє банкінгу за клієнторієнтованими та високотехнологічними банками

Formation of a National Assessment of the Probability of Investing in Fraudulent ICOs

The study covers such concepts as ICO and IPO, their characteristics, similarities and differences. A national estimate of the probability of investing in fraudulent ICOs has been formed. Also, the work is about comparing the likelihood of investing in fraudulent IPOs and ICO.     Keywords: cryptocurrency, block technology, ICO, IP

Chiral Skyrmionic matter in non-centrosymmetric magnets

Axisymmetric magnetic strings with a fixed sense of rotation and nanometer sizes (chiral magnetic vortices or Skyrmions) have been predicted to exist in a large group of non-centrosymmetric crystals more than two decades ago. Recently these extraordinary magnetic states have been directly observed in thin layers of cubic helimagnet (Fe,Co)Si. In this report we apply our earlier theoretical findings to review main properties of chiral Skyrmions, to elucidate their physical nature, and to analyse these recent experimental results on magnetic-field-driven evolution of Skyrmions and helicoids in chiral helimagnets.Comment: 13 pages, 7 figures, invited talk - JEMS-2010 ( 23-28 August, Krakow, Poland

The Use of Analytical Tools in the Conduct of Internal Control Procedures

The work is devoted to the study of the problems of management, the activities of international companies in solving urgent problems of risk assessment, international cooperation of companies in the development and use of software and the applications of the Business Intelligence class, Data Quality and Business Analytics, the role of SAS in the domestic market. The first part is devoted to the activities of international companies in the field of risk assessment. The second part is devoted to the review of analytical products of SAS.   Keywords: audit, risk assessment, in-depth analytics, business intelligenc

Calculation of thermal parameters of SiGe microbolometers

The thermal parameters of a SiGe microbolometer were calculated using numerical modeling. The calculated thermal conduction and thermal response time are in good agreement with the values found experimentally and range between 2x10$^-7$ and 7x10$^-8$ W/K and 1.5 and 4.5 ms, respectively. High sensitivity of microbolometer is achieved due to optimization of the thermal response time and thermal conduction by fitting the geometry of supporting heat-removing legs or by selection of a suitable material providing boundary thermal resistance higher than 8x10$^-3$ cm$^2$K/W at the SiGe interface.Comment: 11 pages, 6 figure

Principles of manufacturing of DC on-board harness for a spacecraft based on 3D technology

This article describes in detail principles of manufacturing of DC on-board harness for spacecraft based on a new 3D design technology. This technology puts together all activities of on-board harness production, starting from electrical design and up to the final product readiness. Based on the analysis performed we proposed: necessary software, methods of wires and connector contacts connection, applicable wires and connectors available in Russian and European markets, shielding and insulating materials, test methods. The article discusses benefits of lightweight supply buses technology implementation (as compared to bundle of wires), which are: mass reduction, electrical performances stability improvement, lesser capacity between supply lines, better interference immunity, better thermal performances