Particle acceleration in the vacuum gaps in black hole magnetospheres

We consider particle acceleration in vacuum gaps in magnetospheres of black holes powered through Blandford-Znajek mechanism and embedded into radiatively-inefficient accretion flow (RIAF) environment. In such situation the gap height is limited by the onset of gamma-gamma pair production on the infrared photons originating from the RIAF. We numerically calculate acceleration and propagation of charged particles taking into account the detailed structure of electric and magnetic field in the gap and in the entire black hole magnetosphere, radiative energy losses and interactions of gamma rays produced by the propagated charged particles with the background radiation field of RIAF. We show that the presence of the vacuum gap has clear observational signatures. The spectra of emission from gaps embedded into a relatively high luminosity RIAF are dominated by the inverse Compton emission with a sharp, super-exponential cut-off in the very-high-energy gamma-ray band. The cut-off energy is determined by the properties of the RIAF and is largely independent of the structure of magnetosphere and geometry of the gap.The spectra of the gap residing in low-luminosity RIAFs are dominated by synchrotron / curvature emission with the spectra extending into 1-100 GeV energy range. We also consider the effect of possible acceleration of protons in the gap and find that proton energies could reach the ultra-high-energy cosmic ray (UHECR) range only in extremely low luminosity RIAFs.Comment: 10 pages, 15 figure

Fund assessment tools final certification of masters for the educational program «Communication Technologies»

Presented by the fund valuation means the final certification of students to graduate educational program «Communication Technologies». Identified the key components o f the fund evaluation tools. The content of the key components. We describe the criteria for assessment of final qualifying works of studentsПредставлено назначение фонда оценочных средств итоговой аттестации студентов для образовательной программы магистратуры «Коммуникационные технологии». Определены ключевые компоненты фонда оценочных средств. Раскрыто содержание ключевых компонент. Описаны критерии оценивания выпускных квалификационных работ студенто

Preparation of masters of technology research and educational environments

Presenting the program of the discipline «Technology research and educational environments». The groups of students competencies. Disclosed competence of each group. We describe the knowledge, skills and abilities of studentsПредставлена программа дисциплины «Технологии научно-образовательных сред». Определены группы компетенций студентов. Раскрыты компетенции каждой группы. Описаны знания, навыки и умения обучающихс

Towards a model of population of astrophysical sources of ultra-high-energy cosmic rays

We construct and discuss a toy model of the population of numerous non-identical extragalactic sources of ultra-high-energy cosmic rays. In the model, cosmic-ray particles are accelerated in magnetospheres of supermassive black holes in galactic nuclei, the key parameter of acceleration being the black-hole mass. We use astrophysical data on the redshift-dependent black-hole mass function to describe the population of these cosmic-ray accelerators, from weak to powerful, and confront the model with cosmic-ray data.Comment: 9 pages, 4 figures, Revtex 4.

New segment methodology and service design intelligent information agent for large-scale networks

Presented by expanding design methodology intelligent software agents for large-scale networksПредставлено расширение методологии проектирования интеллектуальных программных агентов для крупномасштабных сете

Expansion of knowledge about information protection in educational programs of mast

Presents the conditions for the development of the digital economy, considered the objective prerequisites for the expansion of knowledge about information security in graduate education programs, describes the techniques for studying the dynamic characteristics of quantum means of cryptographic protection, proposed ways of end-to-end connectivity of quantum technologies and information security technologiesПредставлены условия для развития цифровой экономики, рассмотрены объективные предпосылки для расширения знаний о защите информации в образовательных программах магистратуры, описаны приёмы исследования динамических характеристик квантовых средств криптозащиты, предложены способы сквозной связности квантовых технологий и технологий информационной безопасност

New components of information technology definitions and evaluation of dynamic characteristics of formal model profiles agent systems

The extension of the functionality of the methodology of forming a model of information-analytical intelligence agentsПредложено расширение функциональных возможностей методологии формирования модельно-аналитического интеллекта информационных агенто

Search for single sources of ultra high energy cosmic rays on the sky

In this paper, we suggest a new way to identify single bright sources of Ultra High Energy Cosmic Rays (UHECR) on the sky, on top of background. We look for doublets of events at the highest energies, E > 6 x 10^19 eV, and identify low energy tails, which are deflected by the Galactic Magnetic Field (GMF). For the sources which are detected, we can recover their angular positions on the sky within one degree from the real ones in 68% of cases. The reconstruction of the deflection power of the regular GMF is strongly affected by the value of the turbulent GMF. For typical values of 4 microG near the Earth, one can reconstruct the deflection power with 25% precision in 68% of cases.Comment: 20 pages, 10 figures. Corresponds to the version published in JCA

Sources of UHECRs in view of the TUS and JEM-EUSO experiments

The origin of ultra-high-energy cosmic rays (UHECRs) is one of the most intriguing problems of modern cosmic ray physics. We briefly review the main astrophysical models of their origin and the forthcoming orbital experiments TUS and JEM-EUSO, and discuss how the new data can help one solve the long-standing puzzle.Comment: 4 pages; prepared for ECRS-2012 (http://ecrs2012.sinp.msu.ru/); v2: a reference adde

EXTENSION OF KNOWLEDGE ABOUT EARLY DETECTION OF APPEARING CHANGES

The reasons for the development of software for early detection of emerging changes are presented. The conditions for detecting emerging changes are described. A promising technique for the intellectualization of early detection systems based on the connection of model-analytical intelligence is proposed. The method for detecting emerging changes has been selected. The basic techniques for the formation of model-analytical intelligence for early detection systems of emerging changes are determined.Представлены основания для развития математического обеспечения систем раннего обнаружения появляющихся изменений. Описаны условия обнаружения появляющихся изменений. Предложен перспективный прием интеллектуализации систем раннего обнаружения на основе подключения модельно-аналитического интеллекта. Выбран метод обнаружения появляющихся изменений. Определены основные приемы формирования модельно-аналитического интеллекта для систем раннего обнаружения появляющихся изменений