bluuebunny/crossref_metadata_2025 huggingface dataset:
FORMATION OF A SUPERRADIANT EXCITON-POLARITON MODE IN A GaN/AlGaN RESONANT BRAGG STRUCTURE
Authors:   Ioffe Institute, Ivanov A.A. , Chaldyshev V.V. ,   Ioffe Institute
Published: October 2023

The given work is devoted to studying the optical properties of the sample with of 30 GaN quantum wells separated by non-tunneling AlGaN barriers. Optical reflectance was studied at different angles of incidence for different polarization of the incident light at room temperature. A model has been verified that makes it possible to describe the experimental data and determine the parameters of excitons in quantum wells. This material system seems to be most promising for implementation of the concept into devices.
NEW MATERIALS FOR ELECTRONICS AND OPTICAL ENGINEERING: ACHIEVEMENTS AND PROSPECTS OF APPLICATION
Authors:   Volga Region State University of Telecommunications and Informatics, Kozlov M.E.
Published: October 2023

Modern materials used in electronic and optical industry are considered in the article. The properties of these materials and their influence on equipment performance are the object of research. The possibility of creating new materials and prospects for their application are analyzed.
SPECTRAL COMBS GENERATION IN A RING RESONATORS BASED ON AN ACTIVE PHOTONIC CRYSTALLINE STRUCTURES
Authors:   Ulyanovsk State University, Abramov A.S. , Lapin V.A. ,   Ulyanovsk State University, Mironov P.P. ,   Ulyanovsk State University
Published: October 2023

We considered the generation of a comb spectrum in a ring fiber resonator. The main element of ring resonator is an amplifying one-dimensional photonic crystal, which combines the properties of an intracavity filter and a power amplifier. It is shown the possibility of using the proposed model as a generator of a broadband frequency comb with a controlled repetition rate of the generated signals.
RESEARCH OF THE ADSORPTION PROPERTIES OF ε-PHOSPHORUS BY THE DENSITY FUNCTIONAL THEORY METHODS
Authors:   Volgograd State Technical University, Badikova P.V. , Zav’yalov D.V. ,   Volgograd State Technical University, Zharikov D.N. ,   Volgograd State Technical University
Published: October 2023

The effect of impurities on the density of states of the allotropic modification of phosphorene (ε-P) has been studied.
ELECTRICAL PARAMETERS OF Ge AND GeSn HETEROEPITAXIAL LAYERS GROWN ON Si(001) BY GS MBE METHOD
Authors:   Nizhegorodsky State University named after N.I. Lobachevsky, Titova A.M. , Shengurov V.G. ,   Nizhegorodsky State University named after N.I. Lobachevsky, Denisov S.A. ,   Nizhegorodsky State University named after N.I. Lobachevsky, Chalkov V.Yu. ,   Nizhegorodsky State University named after N.I. Lobachevsky, Kudrin A.V. ,   Nizhegorodsky State University named after N.I. Lobachevsky, Zdoroveishchev A.V. ,   Nizhegorodsky State University named after N.I. Lobachevsky, Buzynin N.Yu. ,   IPM RAS
Published: October 2023

This paper presents the results of developing a technique for low-temperature growth of high-quality Ge and GeSn layers grown on Si(100) substrates, as well as the results of studies of their structural and electrical properties.
GROWTH AND CHARACTERISTICS OF DIODE STRUCTURES WITH GERMANIUM LAYERS
Authors:   National Research Lobachevsky State University of Nizhny Novgorod, Titova A.M. , Shengurov V.G. ,   National Research Lobachevsky State University of Nizhny Novgorod, Denisov S.A. ,   National Research Lobachevsky State University of Nizhny Novgorod, Kuzmin M.Yu. ,   National Research Lobachevsky State University of Nizhny Novgorod, Alyabina N.A. ,   National Research Lobachevsky State University of Nizhny Novgorod, Zdoroveishchev A.V. ,   National Research Lobachevsky State University of Nizhny Novgorod
Published: October 2023

The paper presents the results of the study of the kinetics of the growth of epitaxial Ge layers on Ge substrates of various orientations. The features of pregrowth preparation of substrates and methods of low-temperature growth of homoepitaxial layers by gas-phase deposition reinforced with «hot wire» are given. Structural and electrical properties of epitaxial structures are investigated
STUDY OF MEMRISTORS FABRICATED BY MAGNETRON SPUTTERING OF COMPOSITE TITANIUM-COPPER TARGET
Authors:   Tomsk State University of Control Systems and Radioelectronics, Urazbekov A.E. , Troyan P.E. ,   Tomsk State University of Control Systems and Radioelectronics, Sakharov Y.V. ,   Tomsk State University of Control Systems and Radioelectronics
Published: October 2023

The results of development of the deposition process and study of titanium dioxide films modified (doped) with copper to create memristor structures on their basis are presented. Volt-ampere characteristics and resistive switching effect are studied. It is found that the proposed method of titanium dioxide preparation leads to a significant improvement of the basic memristive characteristics in comparison with memristive devices based on titanium dioxide without copper modification. In particular, it is demonstrated that the use of these films in the structure of the memristive memory element allows increasing the ratio of the state with high electrical resistance to the state with low electrical resistance by more than 100 times.
APPLICATION OF POLYMER MATERIALS IN THE PRODUCTION OF SMART GLASSES
Authors:   Penza State University, Zinchenko T.O. , Antipenko V.V. ,   Penza State University
Published: October 2023

The work is devoted to the use of polymeric materials in the processing of smart glasses. In particular, polymer films such as polyethylene terephthalate (PET) and polyvinyl chloride (PVC) as well as electrochromic polymers. Polymer frequencies are widely used in window and other cases to improve their functional properties such as density, thermal insulation and UV protection. Electrochromic polymers allow you to control the transmission of light and heat in the room. These innovative materials require a wide range of applications for smart vehicles, including automobiles and electronics.
RESEARCH AND DEVELOPMENT OF NANOMATERIALS AND SMART COATINGS FOR GLASSES
Authors:   Penza State University, Zinchenko T.O.
Published: October 2023

The use of nanomaterials and smart discoveries to improve the functionality of glasses. Particular attention is paid to the Indicative Tin Oxide (ITO) coating, which is bright and electrically conductive, making them visible to touch screens and electronics. Thin films based on metal oxides are also considered in the field of smart glasses, sensitive electrical conductivity and other functional properties. Graphene and carbon nanotubes use promising nanomaterials that can increase transparency, mechanical strength, and electrical conductivity. Additional appearance of antireflective coatings and self-cleaning properties, glass detection with an assessment of reflective needs and the need for automatic cleaning of contaminants. The use of nanomaterials and smart covers expands the possibilities of glass in various cases, including electronics, architecture and the automotive industry.
SYNTHESIS OF VANADIUM OXIDE FILMS FOR APPLICATIONS IN SMART GLASSES
Authors:   Penza State University, Zinchenko T.O.
Published: October 2023

Among semiconductors based on transition metal oxides, vanadium pentoxide has generated considerable interest in recent decades due to its wide range of applications. The physical properties of the films depend on certain parameters, such as the level and ratio of dopants, substrate temperature, deposition conditions, heat treatment, substrate material. As the substrate temperature increased, the transparency of the films increased. As the temperature increases, the microstructure of the film becomes thinner, resulting in a higher refractive index. A decrease in structural defects reduces the extinction coefficient of the films. It can also be seen that the transmission in the folds is quasi-stable with increasing temperature, indicating that the film morphology gradually improves, thus becoming more transparent.
SYNTHESIS OF FERROMAGNETIC POWDERS OF NICKEL, COBALT AND IRON IN A CONTINUOUS MICROWAVE FIELD
Authors:   Tomsk State University of Control Systems and Radioelectronics, Shevyakova N.A.
Published: October 2023

A method for obtaining ferromagnetic powders of nickel, cobalt and iron in a continuous microwave field, X-ray phase analysis, and scanning electron microscopy of the synthesized samples are presented
INVESTIGATION OF THE POSSIBILITY OF USING ALUMINUM OXIDE AS A MATERIAL WITH LOW REFRACTIVE REQUIREMENTS FOR DEPOSITION OF DIELECTRIC MIRRORS OF LASER GYROSCOPES
Authors:   Joint-Stock Company «Polyus» Research Institute of M.F. Stelmah», Azarova V.V. , Danilov A.S. ,   Joint-Stock Company «Polyus» Research Institute of M.F. Stelmah»
Published: October 2023

The possibility of using Al2O3 as a material with a low refractive index for deposition of dielectric mirrors of laser gyroscopes has been confirmed. The characteristics of some thin films of the mentioned material are determined, and the growth of total losses on mirrors with protective layers of Al2O3 and SiO2 after exposure to a glow discharge is compared.
THE EFFECT OF PHASE ANISOTROPY OF MIRRORS ON THE CHARACTERISTICS OF RING RESONATORS OF GAS LASERS
Authors:   JSC «Polyus Research Institute of M.F. Stelmakh», Shchedrina S.R. ,   Moscow Institute of Physics and Technology, Azarova V.V. ,   JSC «Polyus Research Institute of M.F. Stelmakh»
Published: October 2023

The intrinsic polarization modes of ring resonators with a non-planar contour are investigated on the basis of the Jones matrix method, taking into account the amplitude and phase anisotropy of resonator mirrors. It is shown by calculation and confirmed by experimental results that there is a certain dependence between the ratios of the mirror parameters and the degree of ellipticity of the resonator's own oscillations. The weighting coefficients for the phase anisotropy of each mirror are determined, at which the ellipticities of the polarization modes tend to unity. At the same time, the difference in the Q-values of the modes tends to zero.
GENERATION OF MICROWAVE RADIATION IN A RESONATOR BASED ON AN ARRAY OF ORDERED CARBON NANOTUBES
Authors:   Ulyanovsk State University, Rozhleys I.A. , Tertyshnikova G.V. ,   Ulyanovsk State University, Sannikov D.G. ,   Ulyanovsk State University
Published: October 2023

The regimes of generation of microwave waves in a resonator based on an array of ordered semiconductor carbon nanotubes (CNTs) are studied. The Gunn generation regime for CNTs (with lengths of tens to hundreds of microns) was discovered using a numerical finite element method. The influence on the specified mode of changes in the electric field of displacement, load resistance, cross section, etc. was studied. It has been shown that the electronic efficiency during generation can exceed 10%. The results obtained can be used to create new resonator structures - compact microwave amplifiers and emitters based on ordered CNT arrays.
ЕFFECT OF METALLIZATION RESISTANCE ON THE UNIFORMITY AND STABILITY OF THE CURRENT DISTRIBUTION IN THE COMB STRUCTURES OF BIPOLAR AND HETEROBIPOLAR MICROWAVE TRANSISTORS
Authors:   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Sergeev V.A. , Frolov I.V. ,   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Kazankov A.A. ,   Ulyanovsk State Technical University
Published: October 2023

An expression is obtained for the current flowing into an elementary transistor of the comb structure of a bipolar microwave transistor, depending on the resistance of the emitter path of metallization. The influence of the technological spread of the track resistances on the uneven distribution of the total current of the transistor between elementary transistors is estimated, which, in turn, leads to a decrease in the thermal stability of the current distribution.
SURFACE PLASMON POLARITONS IN AN ARRAY OF METAL CARBON NANOTUBES
Authors:   Ulyanovsk State University, Tertyshnikova G.V. , Sannikov D.G. ,   Ulyanovsk State University
Published: October 2023

We examine an array of double-walled carbon nanotubes (DWCNTs) pumped with a direct electric current. By numerical analysis, the existence of slow surface plasmon polaritons (SPPs) with a significant Q factor in DWNTs is shown. It is shown that the distribution of SPP’s intensity in the interwall gap has an azimuthal dependence.
LONGITUDINAL PLASMON MODES IN A FINITE GRAPHENE RECTANGLE
Authors:   Kotelnikov Institute of Radio Engineering and Electronics, Saratov Branch, Russian Academy of Sciences, Mashinskiy K.V. , Popov V.V. ,   Kotelnikov Institute of Radio Engineering and Electronics, Saratov Branch, Russian Academy of Sciences, Fateev D.V. ,   Kotelnikov Institute of Radio Engineering and Electronics, Saratov Branch, Russian Academy of Sciences,   Saratov State University
Published: October 2023

The spectrum of the absorption cross section of plasmon resonances depending on the length of the graphene rectangle is studied theoretically using a self-consistent electrodynamic approach. The superiority of the self-consistent electrodynamic approach compared to the electrostatic approximation is demonstrated.
AUTOMATED DEVICE FOR CONTROL OF NEUTRALIZATION PRODUCTS OF NITROGENIC OXIDIZERS
Authors:   Volsky military institute of material support, Galkin V.B. , Borisov N.M. ,   Volsky military institute of material support, Zyabirov I.R. ,   Volsky military institute of material support
Published: October 2023

A variant of a device for automated control of acidity (pH) and mineralization of products of neutralization of nitrogen oxidizers and washing waters is considered
ON THE NEED TO CONSIDER THE COMPOSITION OF THE ATMOSPHERE IN THE DEVELOPMENT OF BAROMETRIC ALTIMETERS
Authors:   Ulyanovsk Civil Aviation Institute, Ivashchenko I.E. , Efimov V.V. ,   Ulyanovsk Civil Aviation Institute, Efimova I.A. ,   Ulyanovsk Civil Aviation Institute
Published: October 2023

The influence of the composition of the isothermal atmosphere at different heights in determining the air pressure using the barometric formula and developing barometric altimeters is considered
ELECTRONIC ASSEMBLY OF THE INTERIOR LIGHTING OF THE CAR
Authors:   Ulyanovsk State Technical University, Mironov V.A. , Nizametdinov A.M. ,   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Chertoriysky A.A. ,   Ulyanovsk State Technical University,   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences
Published: October 2023

The results of the development of an automobile interior lighting canopy with the possibility of manual and automatic control of the lighting mode are presented. The issues of designing the electronic and optical scheme of the lampshade are considered.
INVESTIGATION OF THE INHOMOGENEITY OF TEMPERATURE DISTRIBUTION IN THE COMB STRUCTURES OF BIPOLAR TRANSISTORS
Authors:   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Sergeev V.A. ,   Ulyanovsk State Technical University, Frolov I.V. ,   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences,   Ulyanovsk State Technical University, Nizametdinov A.M. ,   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Kuzmin N.P. ,   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences
Published: October 2023

An experimental setup for express measurement of the temperature distribution profile in the structures of semiconductor devices using an IR matrix is described. Using the example of commercially produced bipolar transistors with a comb structure with a diode connection of the emitter junction, it is shown that the temperature distribution along the metallization tracks is non-uniform, and the degree of heterogeneity increases with increasing emitter current.
HIGHLY SENSITIVE P-I-N X-RAY DETECTORS
Authors:   National Research University of Electronic Technology, Saurov M.A. ,   SMC «Technological centre», Novikov S.G. ,   Ulyanovsk State University, Berintsev A.B. ,   Ulyanovsk State University
Published: October 2023

A highly sensitive X-ray detector based on silicon epitaxial structures (р+-n-n+) is proposed, which operates at low bias voltages and at room temperature. The structures were grown by molecular-beam epitaxy on heavily doped n-type substrates. The sensitivity of detectors to X-ray radiation in the energy range from 10 to 50 keV has been studied. In photovoltaic mode, the maximum short circuit current was 697 nA and the open circuit voltage was 220 mV. Also, using the detector, the energy spectrum of ionizing radiation of a radioactive isotope 241Am was measured
THE EFFECT OF QUARTZ SURFACE ROUGHNESS ON A SENSITIVITY OF FIBER SENSORS
Authors:   Kotelnikov Institute of the Radioengineering and Electronics of Russian Academy of Sciences, Gasin A.S. ,   RTU MIREA, Smozhny A.M. ,   Kotelnikov Institute of the Radioengineering and Electronics of Russian Academy of Sciences,   RTU MIREA, Kabisov A.M. ,   Kotelnikov Institute of the Radioengineering and Electronics of Russian Academy of Sciences,   RTU MIREA
Published: October 2023

We discuss the variation of sensitivity of fiber refractometer sensors depending on the composition of the etching solution used in their facture.
MEASURING DEVICE THE NUMBER OF TURNS IN THE WINDING
Authors:   AO «Ulyanovsk Mechanical Plant», Shuravin A.D. , Chertoriyskiy A.A. ,   Ulyanovsk State Technical University,   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Nizametdinov A.M. ,   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences
Published: October 2023

A device for measuring the number of turns and ohmic resistance of a coil without a core has been developed. The measurement of the number of turns is implemented on the basis of the transformer method. A four-wire connection circuit is used to measure the ohmic resistance of the coil.
SIMULATION OF THE OPERATION OF A LINEAR MULTIELEMENT PHOTODETECTOR UNDER THE INFLUENCE OF HIGH-FREQUENCY INTERFERENCE ON A SLOW-CHANGING USEFUL SIGNAL
Authors:   Ulyanovsk Mechanical Plant, Kashtanov N.V. ,   Ulyanovsk State Technical University, Chertoriyskiy A.A. ,   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences
Published: October 2023

The results of modeling the process of forming an electrical signal from the output of a linear multi-element photodetector when exposed to a slowly changing optical signal with high-frequency interference are presented. It is shown that interference, the frequency of which exceeds the frame refresh rate of the photodetector with a global shutter, does not introduce additional distortions associated with the overlapping of spectra into the signal.
THE TECHNOLOGICAL ROUTE OF THE INPUT CONTROL OF THE 286 SERIES CHIPS
Authors:   Samara National Research University, Schneidmiller V.R. , Nikolaev A.V. ,   Samara National Research University
Published: October 2023

The analysis of the design and technological features of the 286 series microcircuit, which are taken into account when developing the technological route of the input control of these products, is carried out. Four main stages are identified and investigated in it: the establishment of mechanical integrity, the quality of protective and decorative coatings; the identification of inconsistency between the parameters of the microcircuits (MC) specified in the technical specifications; the evaluation of the accuracy characteristics of the IC; diagnostic non-destructive testing (DNA) of the microcircuit. According to the results of the last stage, the reliability service of the enterprise analyzes the causes of the formation of hidden technological defects.
METHODOLOGY AND INSTALLATION OF QUALITY CONTROL OF ZENER DIODES
Authors:   Samara National Research University, Schneidmiller V.R. , Luptsov A.A. ,   Samara National Research University, Demidov A.A. ,   Samara National Research University
Published: October 2023

It is shown that the use of the volt-farad characteristic of the p-n junction as an informative parameter for assessing the potential reliability of zener diodes and other semiconductor devices does not ensure the proper efficiency of rejection of unreliable samples due to weak detection of bulk defects. A new method of rejection based on the results of diagnostic control by the level of dynamic differential resistance is proposed, which allows detecting volumetric defects, as well as the corresponding installation. The results of their testing on zener diodes 2С168 are presented, confirming the high efficiency of control and rejection.
CRITERIA FOR SELECTION OF OPTIMAL METHODS FOR THIN DIELECTRICS THICKNESS CONTROL
Authors:   National Research University of Electronic Technology, Rudometov Ya.A. , Nelyubin I.V. ,   National Research University of Electronic Technology, Putrya M.G. ,   National Research University of Electronic Technology
Published: October 2023

This paper investigates the features of the use of optical methods for measuring thickness of dielectric films used in the microelectronic manufacturing. An approach to determining the optimal technique for measuring films of different chemical composition over a wide range of thicknesses is described. It is shown that some methods in different cases (for thin, 20-200 A, or thick, <7000 A) may give incorrect or inaccurate results.
MODELLING OF THE AMPLIFIER BLOCK OF AN OSTEOPOROSIS DIAGNOSTIC DEVICE IN THE MULTISIM SOFTWARE
Authors:   National Research Tomsk Polytechnic University, Soldatov A.I. ,   Tomsk State University of Control Systems and Radioelectronics, Sergeyev K.V. ,   National Research Tomsk Polytechnic University
Published: October 2023

This work presents the results of the development and modeling of the amplifier cascade of an ultrasound device for osteoporosis diagnosis in the Multisim software environment. The logic of operation of this cascade is described. The selection and calculation of circuit elements were performed. The schematic diagram of the amplifier cascade, oscillogram, as well as amplitude-frequency and phase-frequency characteristics of the circuit are provided
THERMAL CONDUCTIVITY OF POLYVINYL ALCOHOL FILMS WITH CARBON NANOTUBES
Authors:   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Khodakov A.M. , Nizametdinov A.M. ,   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Vasin S.V. ,   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Sergeev V.A. ,   Ulyanovsk Branch of the Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences,   Ulyanovsk State Technical University
Published: October 2023

The thermal conductivity coefficient of polyvinyl alcohol polymer films with different carbon nanotube contents was determined by solving the inverse thermal conductivity problem for round samples of polymer films with a filamentous heat source located along the diameter of the structure, based on the results of measuring the maximum temperature of the structure at a given power of the heat source.
MULTIPLEXER MODELING IN MATLAB+SIMULINK
Authors:   Volga Region State University of Telecommunications and Informatics, Kayukov A.I. , Galushka I.A. ,   Volga Region State University of Telecommunications and Informatics, Stefanova I.A. ,   Volga Region State University of Telecommunications and Informatics
Published: October 2023

The article deals with the issue of modeling a digital device multiplexer based on a decoder, widely used in digital technology and telecommunication devices
SIMULATION OF A COMBINATIONAL DIGITAL DEVICE
Authors:   Volga State University of Telecommunications and Informatics, Krivonogov P.V. , Stefanova I.A. ,   Volga State University of Telecommunications and Informatics
Published: October 2023

Simulation of a combinational digital device can be used to create digital devices, such as logic devices used in computer technology and digital signal processing circuits, which will allow testing and debugging of the device at the early stages of its development. This approach reduces the time and cost of device development. The paper considers an example of synthesis and modeling of a combinational digital device.
STUDY PROGRAM OF THE INSTRUMENTAL LANDING SYSTEM ILS 734
Authors:   Ulyanovsk Civil Aviation Institute, Titova V.E. , Shutko S.P. ,   Ulyanovsk Civil Aviation Institute, Shtyrlov Yu.V. ,   Ulyanovsk Civil Aviation Institute, Evsevichev D.A. ,   Ulyanovsk Civil Aviation Institute, Samokhvalov M.K. ,   Ulyanovsk State Technical University
Published: October 2023

The article discusses a software product, which is an electronic textbook for studying the domestic approach system ILS 734, its general principles of operation, capabilities and prospects in the Russian aviation sector.
EXCITATION, AMPLIFICATION AND GENERATION OF SURFACE ELECTROMAGNETIC MODES IN GRAPHENE WITH A DC ELECTRIC CURRENT
Authors:   Saratov Branch of the Kotelnikov Institute of Radio-Engineering and Electronics of Russian Academy of Sciences, Fateev D.V. , Moiseenko I.M. ,   Saratov Branch of the Kotelnikov Institute of Radio-Engineering and Electronics of Russian Academy of Sciences, Popov V.V. ,   Saratov Branch of the Kotelnikov Institute of Radio-Engineering and Electronics of Russian Academy of Sciences
Published: October 2023

The results of theoretical studies of the possibilities of using graphene in a hydrodynamic regime with a dc electric current to create miniature technologically feasible sources and amplifiers of terahertz radiation are presented. New effects such as the excitation of electronic sound, the excitation of surface modes, and the amplification of two-dimensional plasmons in graphene structures have been investigated.
VISUALIZATION OF THE INSTRUMENT PANEL OF THE AIRCRAFT DA40 NG
Authors:   Ulyanovsk Civil Aviation Institute, Timoshina S.E. , Shtyrlov Yu.V. ,   Ulyanovsk Civil Aviation Institute, Evsevichev D.A. ,   Ulyanovsk Civil Aviation Institute, Samokhvalov M.K. ,   Ulyanovsk State Technical University
Published: October 2023

The article discusses the practical application of 3D modeling and virtual reality technologies in the educational process. The effect of such an application and new opportunities that open up with the use of virtual visualization are analyzed.
DEVELOPMENT OF RDR-7000 RADAR SIMULATOR
Authors:   Ulyanovsk Civil Aviation Institute, Khvatov A.V. , Bazarnova E.D. ,   Ulyanovsk Civil Aviation Institute, Kostikov E.A. ,   Ulyanovsk Civil Aviation Institute, Evsevichev D.A. ,   Ulyanovsk Civil Aviation Institute, Samokhvalov M.K. ,   Ulyanovsk State Technical University
Published: October 2023

The article discusses the development and operation of the weather radar simulator RDR-7000. The principle of operation of the RDR-7000 system has been studied. The task of demonstrating the practical application of the RDR-7000 radar system has been solved. The functionality of the program «Meteorological radar simulator RDR-7000» has been described and a description of the development process has been given.
THE METHOD FOR DETERMINING THE PROJECTIVE TRANSFORMATION PARAMETERS OF THE PLANE
Authors:   Ulyanovsk State Technical University, Belov A.A. , Tashlinskiy A.G. ,   Ulyanovsk State Technical University
Published: October 2023

The method for determining the coefficients of the model of projective transformation of a flat image using pseudogradient estimation of image deformations is proposed. The method is used for reducing computational operations during finding coefficients.
MATHEMATICAL MODEL OF THE PHOTOPLETISMOGRAM FOR TESTING METHODS OF INTRODUCING PHASES OF LOW-FREQUENCY OSCILLATIONS
Authors:   Saratov State University, Vakhlaeva A.M. , Ishbulatov Yu.M. ,   Saratov Branch of the Kotelnikov Institute of RadioEngineering and Electronics of Russian Academy of Science, Karavaev A.S. ,   Saratov Branch of the Kotelnikov Institute of RadioEngineering and Electronics of Russian Academy of Science, Ponomarenko V.I. ,   Saratov Branch of the Kotelnikov Institute of RadioEngineering and Electronics of Russian Academy of Science, Prokhorov M.D. ,   Saratov Branch of the Kotelnikov Institute of RadioEngineering and Electronics of Russian Academy of Science
Published: October 2023

This report presents the results of development a mathematical model of the photopletismogram to test methods that introduce phases of low-frequency oscillations. The proposed model explicitly incorporates the phases of the modulating signals, so they can be used as a reference. The shape of the model signal qualitatively reproduces the shape of the real one. The spectral properties of the model signal correspond to the experimental data with error less of 1%.
ANALYSIS OF THE EFFECTIVENESS OF PREDICTING THE POTENTIAL OF INTERMOLECULAR INTERACTION BY NEURAL NETWORKS OF VARIOUS TYPES
Authors:   Volgograd State Technical University, Konischev I.A. , Konchenkov V.I. ,   Volgograd State Technical University,   Volgograd State Socio Pedagogical University, Polyanskiy E.O. ,   Volgograd State Technical University, Shein D.V. ,   Volgograd State Technical University
Published: October 2023

The results of modeling the potential of intermolecular interaction using deep learning of neural networks of various types (fully connected neural network implemented in the DeePMD package and a convolutional neural network implemented in the SchNet package) are presented. The calculations showed a satisfactory coincidence of the energy values of organic molecules calculated using neural networks with the values known from literary sources.
Farmaceitiskās ražošanas ūdeņu bioloģiskās attīrīšanas procesa optimizēšana multistresa apstākļos
Authors:   , Strade Elīna
Published: October 2023

Promocijas darbs sagatvots kā tematiski vienota zinātnisko publikāciju kopa, kas ietver piecas zinātniskās publikācijas. Pētījuma rezultātā izstrādāta jauna metode ražošanas ūdeņu toksicitātes uz aktīvo dūņu biocenozi novērtēšanai. Skrīninga testos atlasītas piemērotākās mikroorganismu kultūras aktīvo farmaceitisko vielu un ķīmiskā skābekļa patēriņa attīrīšanas efektivitātes paaugstināšanai bioaugmentācijas ceļā. Izvērtētas ražošanas ūdeņu atkārtotas izmantošanas iespējas un ierobežojumi farmācijas rūpniecībā un sniegti priekšlikumi ķīmiski piesārņotu ūdeņu otrreizējai izmantošanai dažādās ražošanas ūdeņu attīrīšanas procesa stadijās.
Interdependence between business insurance and entrepreneurship and their impact on the economic growth
Authors: Njegomir Vladimir , Stojić Dragan , Demko-Rihter Jelena
Published: October 2023

Research Question: What type of mutual relations exist between business insurance and entrepreneurship, and how do they impact economic growth? Motivation: The primary motive for the research is the identified literature gap in the field of interdependence between business insurance and entrepreneurship and their joint contribution to economic growth. Idea: To test whether the interdependence between business insurance and entrepreneurship exists and their combined contribution to economic growth. The following independent variables were used: premium per entrepreneur, solved claims per entrepreneur, total technical reserves, GDP/p.c., a measure of demographic variables in the form of education level, a measure of the impact of banking, and the measure for institutional factors in terms of establishment costs the number of entrepreneurs by years as the dependent variable was considered. Data: Data were gathered from various sources (Serbian Statistical Office, National Bank of Serbia, World Bank) in the period from 2008 to 2019. Tools:  Descriptive statistics, regression analysis, and statistical tests. Findings: The presented results show that there is a significant influence of insurance, both through insurance premiums per entrepreneur, which are paid to ensure the safety of the entrepreneur, and through resolved claims per entrepreneur, which present an indicator of insurance compensation in the case of damage to the entrepreneur, and through the impact of insurance on financial market by the amount of technical reserves. The return influence was not confirmed, considering that the number of entrepreneurs per year is a stationary variable, so the effect of the number of entrepreneurs on the development of insurance, measured by the premium per entrepreneur, could not be confirmed. Contribution:  This research conducted in Serbia, a developing and upper middle-income country, confirmed the positive impact of insurance on entrepreneurship, but the return influence of entrepreneurship on insurance was not proven.
Design of dynamic ski motion capture and human posture detection model based on spatio-temporal Transformer and wireless device tracking technology
Authors: Wu Xiaohua , Yi Jian , Shi Yongtao , Zhang Gong
Published: October 2023

As a result of significant advancements in living conditions, individuals have redirected their attention towards physical exercise. Skiing, as a widely popular sport, necessitates the real-time maintenance of correct posture during movement. Therefore, we present a dynamic skiing motion capture and human posture detection model that leverages wireless device tracking. Primarily, personnel tracking is enabled through the construction of service base stations and the utilization of wireless device tracking technology. Subsequently, a human posture detection model is formulated in the form of human posture key points, employing the image information of each frame obtained via wireless devices. Finally, we introduce a spatio-temporal Transformer structure that facilitates the detection and recognition of human posture in consecutive frames. Our results demonstrate that our approach can precisely locate and track the position of skiing personnel. Compared to the latest Blip and Conformer methods, our technique yields F values that surpass them by 1.20% and 4.51%, respectively. Moreover, our model can achieve convergent model parameters and accomplish training objectives more efficiently, thus enabling posture detection and dynamic capture of skiing personnel via image and video information.
Neural drive and motor unit characteristics after anterior cruciate ligament reconstruction: implications for quadriceps weakness
Authors: Sherman David A. , Rush Justin , Stock Matt S. , D. Ingersoll Christopher , E. Norte Grant
Published: October 2023

Purpose

The purpose of this investigation was to compare the quality of neural drive and recruited quadriceps motor units’ (MU) action potential amplitude (MUAPAMP) and discharge rate (mean firing rate (MFR)) relative to recruitment threshold (RT) between individuals with anterior cruciate ligament reconstruction (ACLR) and controls.

Methods

Fourteen individuals with ACLR and 13 matched controls performed trapezoidal knee extensor contractions at 30%, 50%, 70%, and 100% of their maximal voluntary isometric contraction (MVIC). Decomposition electromyography (dEMG) and torque were recorded concurrently. The Hoffmann reflex (H-reflex) and central activation ratio (CAR) were acquired bilaterally to detail the proportion of MU pool available and volitionally activated. We examined MUAPAMP-RT and MFR-RT relationships with linear regression and extracted the regression line slope, y-intercept, and RT range for each contraction. Linear mixed effect modelling used to analyze the effect of group and limb on regression line slope and RT range.

Results

Individuals with ACLR demonstrated lower MVIC torque in the involved limb compared to uninvolved limb. There were no differences in H-reflex or CAR between groups or limbs. The ACLR involved limb demonstrated smaller mass-normalized RT range and slower MU firing rates at high contraction intensities (70% and 100% MVIC) compared to uninvolved and control limbs. The ACLR involved limb also demonstrated larger MU action potentials in the VM compared to the contralateral limb. These differences were largely attenuated with relative RT normalization.

Conclusions

These results suggest that persistent strength deficits following ACLR may be attributable to a diminished quadriceps motor neuron pool and inability to upregulate the firing rate of recruited MUs.
CALLES PARA EL BUEN VIVIR: TRES CASOS CHILENOS
Authors: Sagaris Lake , Echiburu Tomás , Muñoz Juan Carlos , Valenzuela Luis
Published: October 2023

Medio siglo de experimentación demuestra la efectividad de algunas estrategias para reconquistar las calles locales, para recuperar su uso para caminar, socializar, jugar. Una revisión global, realizada en el marco de una colaboración con el Transport & Health Science Group (Reino Unido), generó más de 20 estrategias. Rescatamos estos aprendizajes a la luz de tres casos en distintas comunas de Santiago de Chile: La Reina, Renca y Bellavista (Providencia). Internacionalmente, una participación ciudadana deliberante y vinculante se ha demostrado como central, pero también es necesario considerar falencias de la institucionalidad chilena, que identificamos al revisar estas experiencias.
REHABILITACIÓN ENERGÉTICA DE VIVIENDAS SOCIALES DE MEDIA ALTURA: EL CASO DE LOS BLOQUES CORVI 1020
Authors: Flamant Gilles , Bustamante Waldo , Schmitt Cristián , Bunster Víctor , Osorio César ,   Equipo Proyecto Energía
Published: October 2023

Esta investigación evalúa los impactos energéticos y medioambientales asociados a distintos escenarios de rehabilitación energética de los bloques CORVI 1020, edificios emblemáticos de vivienda social construidos en gran número en Chile entre 1968 y 1978.
Propuesta de una metodología para el ajuste de un modelo de ignición con información extraída desde sensores remotos
Authors:   , Valenzuela Mancilla Agustin
Published: October 2023

Los incendios forestales son un fenómeno que, en el caso de Chile, son provocados en un 99,7% por los seres humanos. El aumento de la interfaz urbano – forestal, en conjunto con el Cambio Climático han llevado a un aumento en la severidad de los incendios. Con el fin de evitar daños ecológicos y sociales, es necesario crear sistemas efectivos de prevención, que minimicen los costos. Por aquello se propone una metodología para un modelo de ignición, que se basa únicamente en información que puede ser extraída desde sensores remotos de forma rutinaria. Estas fuentes de información poseen ventajas evidentes cuando se comparan con otras fuentes de datos, tales como; encuesta, muestreos de campos, censos, y pueden ser actualizadas con mayor frecuencia. Usando un modelo de clasificación Random Forest se consigue una exactitud cercana al 93% en las estimaciones, comparables a estudios hechos a nivel nacional e internacional. Las variables que más contribuyen al modelo son la temperatura media anual, la mediana de NDVI, la altitud y un índice global de modificación antrópica, que sintetiza la influencia antrópica en el territorio. La importancia de un modelo como el presentado es que sus insumos pueden ser actualizados de forma más dinámica y a un menor costo. Palabras Claves: Palabras Claves: Sensores Remotos, Incendios Forestales, Random Forest, prevención, Modelo de Ignición.
Sistema radial de resignificación costera: cuidado, visibilización, producción
Authors:   , Arriagada Bengolea Josefina
Published: October 2023

Esta investigación nace del interés por el cuidado de los ecosistemas marinos y la necesidad de potenciar y diversificar las actividades acuícolas. La extracción de recursos marinos a lo largo de la historia ha dejado numerosos vestigios que forman parte del paisaje costero y su memoria colectiva, los cuales se consolidan como puntos de anclaje del proyecto. Rodeando estos, se busca generar un lugar de reflexión, en el cual, por medio de una toma de distancia y la visualización de la preexistencia y su entorno desde diferentes perspectivas, se contrastan y relatan las historias de antiguas y nuevas industrias acuícolas. El sistema se emplaza en sitios costeros donde se encuentran ruinas de la industria ballenera, y consiste en un perímetro construido a partir de la repetición de un mismo elemento que rodea estos vestigios y su entorno inmediato. Se pretende testear cuáles son los alcances de una arquitectura que rodea y alberga un programa que concentra la producción, investigación y procesamiento de algas marinas. Entender el proyecto de arquitectura como un sistema permite tomar posición en la problemática del cuidado del patrimonio industrial y el patrimonio natural, a través del desarrollo de un conjunto de reglas sujetas a la repetición y edición, intentando abarcar el fenómeno completo desde las relaciones entre sus partes. De esta manera, la arquitectura hace dialogar aspectos de diferentes disciplinas como la historia, la ciencia y la economía, para configurar un espacio de resignificación, visibilización y producción donde confluyen el pasado, el presente y el futuro.
Interconectad@s: Una guía para fortalecer la visibilidad y participación de las comunidades educativas en @escuelasparaelbuenconvivir
Authors:   , Amigo Moreno Alberto Esteban
Published: October 2023

El proyecto busca promover la convivencia escolar positiva mediante la gestión efectiva de Instagram en el plan comunal "Escuelas para el Buen Convivir". Aprovechando el interés de los encargados de convivencia escolar, docentes y estudiantes de enseñanza media por las redes sociales, se co-diseñará una guía educomunicativa para facilitar la participación activa de estos actores. Además, se establecerán orientaciones temáticas y metodológicas que fomenten el intercambio de experiencias y buenas prácticas, creando un ambiente colaborativo y mediante un sistema de seguimiento y evaluación, se medirá la percepción de valor y aplicabilidad de las experiencias compartidas.
Mathematical programming and K-means approach for designing balanced territorial units with competitive attractiveness for a public tender
Authors:   , Consolo Micaela Guadalupe
Published: October 2023

La investigación se enmarca en un problema de districting de entrega de servicios, en donde un territorio debe ser diseñado de tal manera de que se optimicen los recursos en una licitación de servicio de entrega de comida. Para lo anterior se diseñó un enfoque de solución en etapas. En la primera etapa a partir de algoritmos de K-means se determina la división óptima del territorio. En la segunda etapa se adapta una heurística propuesta por Kong et al. (2019), en donde se eligen los centroides de los distritos en base a criterios de balance y compacidad. En la tercera etapa se implementa una heurística para fijar variables de asignación y así disminuir la dimensionalidad del problema. Finalmente, en la cuarta etapa se elabora un modelo de programación entera mixto, el cual, en base a un indicador construido del nivel de atractividad, asigna las unidades básicas a los distintos distritos preestablecidos, buscando que los distritos sean similares en términos de atractividad y a la vez lo más compacto posibles. El enfoque de solución fue aplicado de cuatro maneras distintas a la licitación del Programa de Alimentación Escolar (PAE) de la Junta Nacional de Auxilio Escolar y Becas (JUNAEB), organismo de la administración del Estado de Chile encargado de facilitar la incorporación y permanencia en el sistema educacional de niños y jóvenes en condición de vulnerabilidad. Respecto a la situación actual nacional del PAE, las cuatro políticas entregaron mejoras porcentuales entre 33.01% y 53.79% en términos de la desviación estándar del balance de atractividad entre los distritos, y 8.54% y 21.16% en términos de la desviación estándar de compacidad entre los distritos.
“Habitar en la posibilidad”: traducciones de la ambiguedad a partir de la poesía de Emily Dickinson
Authors:   , García González Kathleen
Published: October 2023

Esta investigación se centra en estudiar los efectos ambiguos de una selección de poemas pertenecientes a la obra de Emily Dickinson junto a dos traducciones al español de los respectivos textos. A partir de un análisis estilístico contrastivo entre textos originales y meta se reflexiona, en primera lugar, sobre la relevancia de los efectos ambiguos en el estilo del texto original para, luego, verificar su transferencia en los textos meta. Tal análisis llevó a la conclusión de que el fenómeno lingüístico estudiado, i.e., ambigüedad, puede describirse como una lectura doble o múltiple ya sea de palabras o frases. Considerando su explotación en textos literarios, especialmente en aquellos poéticos, la ambigüedad se explica, asimismo, por las lecturas simultáneas que realiza el lector: actividad entendida como el proceso cognitivo orgánico que se da al leer un texto, teniendo la capacidad de retener y comprender, al mismo tiempo, las múltiples lecturas fomentadas por ambivalencias léxicas y/o gramaticales. En este sentido, los resultados indicaron que los efectos ambiguos de tipo gramatical se revelan a partir del análisis del texto original, siendo su reproducción altamente factible si se utilizan las mismas estructuras sintácticas. Por el contrario, los efectos ambiguos de tipo léxico se revelan a partir del cotejo entre textos, ya que las distintas interpretaciones de los traductores dejan ver el carácter multifacético de algunas de las unidades léxicas utilizadas en los poemas. Este último tipo de efecto ambiguo es más complejo de reproducir debido a las diferencias en las etimologías de los léxicos de cada lengua. Finalmente, utilizar las herramientas y metodologías de la estilística con fines traductológicos resulta beneficioso dado que ambos campos de estudio permiten dar una mirada cercana a las posibilidades que abre el lenguaje, otorgándole al traductor la oportunidad de comprender más profundamente sus interpretaciones y respectivas implicancias en el producto final: el texto traducido.
Dificultades en la traducción de culturemas en la serie chilena "El Reemplazante"
Authors:   , Garay Lecaros Verónica
Published: October 2023

En esta investigación, se realizó un análisis de la adecuación de la traducción, del español al inglés, de los culturemas de la serie chilena “El Reemplazante” (2012) para determinar las dificultades que se presentaron en la traducción de los culturemas chilenos. Este estudio tiene como base teórica qué es la traducción audiovisual y el subtitulaje, y los lineamientos de este, cómo se define cultura, qué es un culturema y cuáles son su características y dificultades, además, se presenta una clasificación de culturemas y, por último, se discuten las características del español de Chile. Estos conceptos se revisan de la mano de los autores Mayoral (1998), Molina (2006), Díaz Cintas (2007), Luque Nadal (2009), Zojer (2011), Orrego Carmona (2013), Mattioli (2014) y Rojas (2015). Para realizar este estudio, se compiló un corpus paralelo conformado por la transcripción de los capítulos de la primera temporada y los subtítulos en inglés presentes en Netflix. Luego de la recopilación del corpus, se identificaron y seleccionaron los culturemas que presentaron inconvenientes o dificultades en su traducción y se realizó un estudio comparativo y cualitativo de la traducción realizada en los subtítulos. Se analizó un total de 14 culturemas, los cuales fueron explicados, clasificados y analizados, y se propuso una nueva traducción para transmitir la carga cultural y/o el sentido del culturema. Para la clasificación de culturemas, se utilizó la categorización propuesta por Mattioli (2014) y las nuevas categorías creadas en función del corpus de esta investigación. Las categorías que presentaron mayor inconveniente en su traducción son la categoría “lingüística”, “académica” y “social, histórica y folclore”. Finalmente, se concluye que la dificultad intrínseca del culturema no fue el mayor inconveniente para traducirlos, sino que existió un desconocimiento de la cultura origen y es posible que existiese otro encargo de traducción que primara por sobre la guía de estilo o simplemente esta última no se siguió. Adicionalmente, las características del español chileno hablado y la cantidad de traductoras también son posibles causantes de los problemas de traducción de los culturemas.