Events

We fabricated ZnFe-layered double hydroxides with sulfate-intercalated anion (ZnFe-SO4-LDH) modified with graphene oxide (GO) by chemical co-precipitation method. They were then coated on the glass substrates (denoted as ZnFe-LDH/GO/GS). The XRD, SEM, EDX, X-ray Dot-mapping, FTIR, AFM, UV–Vis DRS, and PL analyses were used for the characterization of the as-synthesized sample. The photocatalytic implementation of the as-prepared photocatalyst was scrutinized for the degradation of phenazopyridine hydrochloride (PhP) from the solution under visible light irradiation.

Georgy Valentinovich Plekhanov in the last years of the nineteenth century accused the eighteenth-century philosopher Immanuel Kant of contradictions: on the one hand, Kant recognized that things-in-themselves objectively exist and their influence causes sensations, on the other hand, Kant called things-in-themselves inaccessible for the senses.

An inhomogeneous boundary value problem with mixed boundary conditions for the Laplace equation in a domain representing a perturbation of a rectangle in which one of its sides is replaced by some (irregular) curve is considered.

Bakhtin's transition to the sphere of aesthetics arose from his philosophical desire to find the key to overcoming the split between the world of unity (life) and the world of unity (culture). In other words, Bakhtin approaches the field of aesthetics to solve his philosophical problem, therefore aesthetics for Bakhtin is one of the subjects within a more general and broader philosophical concept. But although Bakhtin wants to reconcile these two worlds, which oppose each other, and sees the possibility of this overcoming not in the realm of one world, but in their connection, he found the path to this overcoming precisely in the only place of a specific individual.

The seminar will discuss the issues of environmental problems and the requirements of the new time for future workers in the field of environmental protection, which are the most important issues for students. The ability to manage natural resources is one of the main ones formed during training in the educational environmental programs of the Institute of Ecology of the RUDN.

We study a problem of damping a control system described by functional-differential equations of natural order n and neutral type with non-smooth complex coefficients on an arbitrary tree with global delay. The latter means that the delay propagates through internal vertices of the tree.

The purpose of the event: The scientific seminar is dedicated to improving the quality of teaching foreign languages and cultures in accordance with the new challenges posed to humanitarian education; expanding active contacts with scientists and teachers of foreign languages and humanities from leading universities, raising the status of foreign languages and humanities, developing the academic reputation of the RUDN University named after Patrice Lumumba and the incoming mobility of leading scientists.

By expanding the concept of solutions, it was possible to find a proof of sufficiently general theorems of the existence of generalized solutions to systems of two conservation laws (one spatial variable), however, the developed technique as a whole cannot be extended even to systems of three conservation laws with one spatial variable.

Agranovich and Vishik constructed a theory of elliptic boundary value problems depending on a parameter p. This theory plays an important role in the study of many classes of differential equations and their applications (for example, in the case of equations on manifolds with singularities). We report about an analogue of this theory in the case of boundary value problems for pseudodifferential operators. As applications, we will obtain trace asymptotics for elliptic problems with a parameter as p tends to infinity and define eta-invariants for elliptic problems with a parameter.

Well-known results on the boundedness of the classical Riesz potential in lo-cal Morrey-type spaces are generalized to the case of integral operators of Riesz type, in which the power function is replaced by a general function that satisfies certain conditions. For some values of numerical parameters characterizing local Morrey-type spaces, necessary and sufficient conditions for functional parameters are obtained that ensure the boundedness of such operators from one general local Morrey-type space to another.

The development of revolutionary wireless networks will ultimately result in the availability of high-speed, low-latency connection for all aspects in daily life. 5G will be providing ubiquitous broadband access, enhance user mobility, and enable ultra-reliable and cost-effective networking of a large number of devices (e.g., Internet of Things (IoT)). Cloud computing, Software Defined Networking (SDN), and Network Function Virtualization (NFV) are the primary technical enabling developing potential usage in 5G.

Exploiting 2-(alkylsulfonyl)pyridines as 1,3-N,S-ligands, 1D CuI-based coordination polymers bearing unprecedented (CuI)n chains and possessing remarkable photophysical properties were constructed. Metallophilic interactions Cu⋯Cu in these compounds were studied theoretically by DFT calculations and topological analysis of electron density distribution. At room temperature, these coordination polymers show efficient thermally activated delayed fluorescence, phosphorescence or dual emission in the deep-blue to red range with outstandingly short decay times of 0.4–2.0 μs and good quantum performance. Moreover, the designed compounds emit strong X-ray radioluminescence with the quantum efficiency of up to an impressive 55% relative to well known all-inorganic bismuth germanate (BGO) scintillators. The presented findings push the boundaries in designing thermally activated delayed fluorescence and triplet emitters with very short decay times.

Based upon the experimentally obtained kinetic data on iodonium salt catalyzed nucleophilic addition of isocyanide to imine leading to imidazopyridine species, a reliable model for DFT calculations has been suggested. It was shown that preassociation of the catalysts with the reaction species might significantly affect the total energy profile of the reaction obtained by DFT.

The purpose of the event is to familiarize foreign graduate students with the procedure for admission to master's and postgraduate study programs to continue their education at RUDN University, as well as with the main educational programs.

In this lecture we will present an overview of recent works on mathematical modelling of respiratory viral infections. We will begin with the investigation of infection progression in cell cultures and in tissues of human body.

We establish nonexistence of different types of solutions for some semilinear elliptic inequalities with a transformed argument in a half-space. The proofs are based on the test function method.

This report will present three layers namely 6TiSCH layer, Edge layer and Cloud layer. In Edge layer, effective offloading is done by using Soft Actor Critic (SAC) algorithm for reducing the energy consumption during offloading. Finally all the processed data are sent to the cloud layer for accessing. The proposed work is experimented using Cooja simulation tool with contiki 3 OS. The performance of the proposed work is compared to the existing works in terms of Latency (42ms-20.4ms) low, energy consumption (28.8J-12J) low in 6TiSCH layer, Latency (40ms-20.4ms) low, energy consumption (24.8J- 13.6J) low in Edge layer and overall comparison achieves throughput (508.8Kbps-322Kbps) high, packet delay ratio (8%-4.6%) high, end-to end delay (6s-9s) low and efficiency (14.6%-7.8%) high. The experimental results show that our proposed work performs well than existing works.

We Derive Einstein model of Brownian Motion with Schematic’s in form of system of PDE. We incorporate Einstein’s method of Brownian motion to deduce the chemotactic model exhibiting a traveling band. To our knowledge this was the first time that Einstein’s method has been used to motivate equations describing the mutual interaction of the chemotactic system.

In this report an applied method for building distributed control systems for adaptive control of traffic flows under conditions of a dynamically changing traffic load is proposed, which analyzes the initial data and develops the necessary elements of a distributed control system and their characteristics, namely: the control system is built from a set of ready-made elements, the formation of quantitative and qualitative characteristics of which occurs depending on their location on the road network section.

The talk is devoted to the presentation of the results of the investigation of motion of non-potential systems with an infinite number of degrees of freedom, which, on the one hand, is a further development of classical mechanics, and on the other – allows us, as a very special case, to investigate the motion of systems with a finite number of degrees of freedom.

Since the beginning of mass education, standard languages have been undergoing spelling reforms/changes that produce controversies to a lesser or greater extent. Attempts by governments or other authoritative bodies to change the official spelling rules often encounter resistance.

We will discuss two projects: bThe movement of the living organism in a band form towards the presence of chemical substrates based on a system of the PDE.

The talk will start with a survey of various constructions of GMC. We shall then propose a general method for constructing exponentials of random fields and establish convergence to the GMc of random entire functions naturally assigned to the sine-process.

The epistemological concept of the scheme has a long philosophical history: we may discover its roots in Neoplatonism. The scheme is different from both the concept and the percept, but at the same time it can be represented as a specific procedure of the dynamic connection of both. In contemporary cognitive science, schematization is studied at the intersection of different disciplines, such as cognitive linguistics, developmental psychology, kinesics, neurophysiology. The complexity of its study lies not only in the need to work with huge variety of materials, but also in the need to combine various philosophical and methodological perspectives, as well as in the need to take into account materials from different languages and cultures (not only European).

The report examines the inverse problem of finance, which consists of constructing (calibrating) a volatility function using available financial data. An analytical approach to solving the problem is the Dupire formula, which allows to construct a volatility function for given option prices.

Ecological monitoring is a vital method to assess the condition, support and develop urban territories. Modern technologies, such as open-hardware and the «internet of things» are able to make data collection and processing more time- and resource-effective. Existing and perspective solutions for river flow digital-twins, green-roof monitoring and air quality assessment to be discussed during the seminar.