Перспективы сотрудничества РУДН-МЦУЭР по программе "Энергетическая безопасность: нетрадиционные углеводородные ресурсы будущего"

The article reviews the activities of the International Sustainable Energy Development Centre under the auspices of UNESCO (ISEDC), to working with him. Considered innovative educational program “Energy Security: unconventional hydrocarbon resources of the future”. Developed a training plan for her.В статье рассматривается деятельность Международного центра устойчивого энергетического развития под эгидой ЮНЕСКО (МЦУЭР), возможности сотрудничества с ним. Приведена инновационная образовательная программа «Энергетическая безопасность: нетрадиционные углеводородные ресурсы будущего». Разработан учебный план к ней

Statistical relationships between variations of the geomagnetic field, auroral electrojet, and geomagnetically induced currents

Using observations from the IMAGE magnetic observatories and the station for recording geomagnetically induced currents (GIC) in the electric transmission line in 2015, we examine relationships between geomagnetic field and GIC variations. The GIC intensity is highly correlated (R>0.7) with the field variability |dB/dt| and closely correlated with variations in the time derivatives of X and Y components. Daily variations in the mean geomagnetic field variability |dB/dt| and GIC intensity have a wide night maximum, associated with the electrojet, and a wide morning maximum, presumably caused by intense Pc5–Pi3 geomagnetic pulsations. We have constructed a regression linear model to estimate GIC from the time derivative of the geomagnetic field and AE index. Statistical distributions of the probability density of the AE index, geomagnetic field derivative, and GIC correspond to the log-normal law. The constructed distributions are used to evaluate the probabilities of extreme values of GIC and |dB/dt|

Инновационная система обнаружения утечек и контроля активности трубопроводов

The article covers the problem of monitoring the pipelines system. The article considers the possibility of continuous monitoring the innovative system to detect leakage and pipelines activity control, in order to reduce the risk of accidents with environmental consequences as a result of disasters at geographically distributed objects.В статье рассмотрена возможность ведения непрерывного мониторинга инновационной системой обнаружения утечек и контроля активности трубопроводов с целью сократить риски возникновения аварийных ситуаций с экологическими последствиями в результате аварий на распределенных объектах. Описывается алгоритм работы системы мониторинга

Исследование и оценка воздействия угольной шахты на окружающую среду

The paper deals with the causes of the ecological crisis on the ground as a result of industrial development around the world. The coal industry will inevitably have a negative effect on the environment, polluting and disrupting it. To solve this problem have been identified promising clean technology, environmental services and equipment.В работе рассматриваются причины возникновения на земле экологического кризиса как результат промышленного развития стран мира. Угольная промышленность неизбежно негативно влияет на окружающую среду, загрязняя и нарушая ее. Для решения данной задачи были определены перспективные экологически чистые технологии, экологические процессы и оборудования

Geoinformation system for analyzing the dynamics of extreme geomagnetic disturbances from observations of ground stations

Основываясь на данных наблюдения магнитных обсерваторий и вариационных станций, публикуемых на портале SuperMAG, предлагается и верифицируется подход к построению специализированной веб-ГИС на базе микросервисной архитектуры, обеспечивающей аналитический контроль возмущенной составляющей вариаций геомагнитного поля. Реализованный в рамках данной системы метод пространственной интерполяции геомагнитных данных в совокупности с предложенной схемой их ранжировки и интерпретации, а также способом визуализации в виде изолиний позволяет отслеживать структуру, наблюдать динамику, выявлять вероятные регионы, длительность и временные интервалы возникновения экстремальных геомагнитных возмущений. The paper is concerned with an approach to developing a specialized web-GIS based on a microservice architecture that provides analytical control of the disturbed component of geomagnetic field variations, according to observation data from magnetic observatories and variational stations published on the SuperMAG portal . A method of spatial interpolation of geomagnetic data implemented in the proposed web-GIS, together with the proposed scheme for ranking and interpreting them, as well as a visualization method in the form of isolines, allows a user to track the structure, observe the dynamics, identify probable regions, duration and time intervals of the occurrence of extreme geomagnetic disturbances.Работа поддержана грантами РНФ 17-77-20034 и РФФИ № 20-07-00011-а, а также Министерством науки и высшего образования РФ в рамках выполнения работ по Государственному заданию ФГБОУ ВО УГАТУ # FEUE-2020-0007 по теме «Теоретические основы моделирования и семантического анализа процессов преобразования вихревых электромагнитных полей в инфокоммуникационных системах»

Advances in ab-initio theory of Multiferroics. Materials and mechanisms: modelling and understanding

Within the broad class of multiferroics (compounds showing a coexistence of magnetism and ferroelectricity), we focus on the subclass of "improper electronic ferroelectrics", i.e. correlated materials where electronic degrees of freedom (such as spin, charge or orbital) drive ferroelectricity. In particular, in spin-induced ferroelectrics, there is not only a {\em coexistence} of the two intriguing magnetic and dipolar orders; rather, there is such an intimate link that one drives the other, suggesting a giant magnetoelectric coupling. Via first-principles approaches based on density functional theory, we review the microscopic mechanisms at the basis of multiferroicity in several compounds, ranging from transition metal oxides to organic multiferroics (MFs) to organic-inorganic hybrids (i.e. metal-organic frameworks, MOFs)Comment: 22 pages, 9 figure

Search for electroweak production of single top quarks in ppˉp\bar{p} collisions.

We present a search for electroweak production of single top quarks in the electron+jets and muon+jets decay channels. The measurements use ~90 pb^-1 of data from Run 1 of the Fermilab Tevatron collider, collected at 1.8 TeV with the DZero detector between 1992 and 1995. We use events that include a tagging muon, implying the presence of a b jet, to set an upper limit at the 95% confidence level on the cross section for the s-channel process ppbar->tb+X of 39 pb. The upper limit for the t-channel process ppbar->tqb+X is 58 pb. (arXiv

Operation and performance of the ATLAS semiconductor tracker

The semiconductor tracker is a silicon microstrip detector forming part of the inner tracking system of the ATLAS experiment at the LHC. The operation and performance of the semiconductor tracker during the first years of LHC running are described. More than 99% of the detector modules were operational during this period, with an average intrinsic hit efficiency of (99.74±0.04)%. The evolution of the noise occupancy is discussed, and measurements of the Lorentz angle, δ-ray production and energy loss presented. The alignment of the detector is found to be stable at the few-micron level over long periods of time. Radiation damage measurements, which include the evolution of detector leakage currents, are found to be consistent with predictions and are used in the verification of radiation background simulations

Measurement of the View the tt production cross-section using eμ events with b-tagged jets in pp collisions at √s = 13 TeV with the ATLAS detector

This paper describes a measurement of the inclusive top quark pair production cross-section (σtt¯) with a data sample of 3.2 fb−1 of proton–proton collisions at a centre-of-mass energy of √s = 13 TeV, collected in 2015 by the ATLAS detector at the LHC. This measurement uses events with an opposite-charge electron–muon pair in the final state. Jets containing b-quarks are tagged using an algorithm based on track impact parameters and reconstructed secondary vertices. The numbers of events with exactly one and exactly two b-tagged jets are counted and used to determine simultaneously σtt¯ and the efficiency to reconstruct and b-tag a jet from a top quark decay, thereby minimising the associated systematic uncertainties. The cross-section is measured to be: σtt¯ = 818 ± 8 (stat) ± 27 (syst) ± 19 (lumi) ± 12 (beam) pb, where the four uncertainties arise from data statistics, experimental and theoretical systematic effects, the integrated luminosity and the LHC beam energy, giving a total relative uncertainty of 4.4%. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. A fiducial measurement corresponding to the experimental acceptance of the leptons is also presented