bluuebunny/crossref_metadata_2025 huggingface dataset:
CLASSIFICATION AND DIAGNOSIS OF REGIONAL PROJECTS WITH USING OF FACET ANALYSIS
Authors: Savchuk R. V.
Published: June 2023

The possibilities of facet analysis for classification and diagnostics of regional innovative projects are considered in this article. The offered method allows to group projects in the aggregated classes for determination of strategy of regional management on every project..
THE SCIENTIFIC SUBSTANTIATION OF THE TERM OF PASSENGER CARS OPERATION
Authors: Loboiko L. M. , Myamlin S. V. , Pulariia A. L.
Published: June 2023

For passenger coaches the scientific bases on substantiation of the operation time with the account of their technical conditions and separation of the inter-repair cycles for coaches with different repair amounts are developed.
THE THEORY USING OF PIECEWISE-LINEAR UNIT TO FORMALIZE THE WORK OF REPAIR MODULES LINE OF REPAIR LINES WITH FLEXIBLE TRANSPORT SYSTEM
Authors: Myamlin V. V.
Published: June 2023

The method of formalization of the repair module work process of the car-repair flow line with flexible transport system is considered. As the mathematical scheme of process of the module functioning, the specific scheme of a piecewise-linear unit from the theory of units is offered. The given scheme can be put in a basis of development of imitating models for designing and research of the car-repair flow lines of new generation.
THE DESIGN IMPROVING OF TOP NODE OF THE CURRENT COLLECTOR
Authors: Pavlychenko M. Ye.
Published: June 2023

In UrGUPS a new design of top assembly of current collector is developed allowing to improve the stability of contact pressure, to decrease the reduced mass, to lower the wear of contacting elements. The effect is achieved through the installation of third additional carriage to the top assembly.
THE PLANNING PROCESSES IMPROVEMENT OF THE STRUCTURES DISSOLUTION WITH TAKING INTO ACCOUNT THE OPERATIONAL DATA OF THE CONTROL FREIGHT AUTOMATED SYSTEMS
Authors: Bardas O. O.
Published: June 2023

The specified model of definition of the order of trains processing on the switching stations considering operative data of automatic management systems of freight transportation is developed.
THE ANALYSIS METHODS DEVELOPMENT OF THE EFFECTIVENESS OF THE BASIC PRODUCTION ASSETS OF RAIL OPERATORS
Authors: Cherednychenko M. S.
Published: June 2023

A method of economic evaluation for the efficiency of using the capital production assets of railway transport operators is developed. The method allows calculating the optimum necessity in freight cars taking into account the financial and technological risks during transportations by both own cars and cars of inventory stock.
THE INTERACTION OF WHEEL SETS AND RAILS WAY
Authors: Ilman V. M. , Skalozub M. V.
Published: June 2023

This article offers the methods of calculation of the start points of contact during wheel set-rails family interaction. The states of wheel set are investigated; the types of possible specific wheel set states, turning-over of rolling stock elements and their derailment are determined.
THE STABILITY ANALYSIS OF OPTIMAL PLANS OF RETURNING SPENT WAGONS WITH VARIATIONS OF DAILY FIGURES
Authors: Skalozub V. V. , Foksha K. S.
Published: June 2023

The problem of stability of optimum plans of empty cars return is investigated in the article. For stochastic planning model, using the statistic test method the values of plans sensitiveness to changes of input data are obtained.
THE MATERIALS AND ADDITIVES APPLICATION FOR THE MODIFICATION OF TECHNOLOGICAL AND OPERATIONAL PROPERTIES OF REPAIR COMPOUNDS FOR SPECIAL PURPOSES IN THE REPAIR OF BUILDINGS AND ENGINEERING STRUCTURES ON THE TRANSPORT
Authors: Pshinko O. M. , Krasnyuk O. V. , Gromova O. V. , Palii V. V.
Published: June 2023

In the article one of directions of creation of repair material with the set technological and operational properties by means of use of modifying additives of the directed or multifunctional action is considered. The requirements to repair compositions of special purpose for different conditions of operation of a construction are established and the categories of materials for repair are separated. The review of modern synthetic additives and ground-additives for modifying the properties of repair compositions of special purpose is carried out.
REGARDING FACTORS MANAGEMENT OF FISCAL POLICY IN MACROECONOMIC REGULATION PROCESSES
Authors: Vlasyuk V. Ye.
Published: June 2023

The article is devoted to the theoretical-and-methodical problems of research of factors of influencing the state regulation of the processes of distribution of profits. The efficiency of the state regulation of macroeconomic processes is analyzed.
THE MATHEMATICAL MODELING OF THE PROCESS OF NEUTRALIZATION CLOUDS OF HYDROGEN CYANIDE
Authors: Lysnyak V. M.
Published: June 2023

A computer model to calculate the neutralization of НСN cloud is proposed. The model is based on the numerical integration of the 3-D gradient transport model. The results of numerical experiment are presented.
IMPROVING LOCAL PROCESSING TRAFFIC VOLUMES IN RAILWAY JUNCTIONS
Authors: Levytskyi I. Ye. , Korobova R. H.
Published: June 2023

The analysis of tendencies of development of railway junctions is performed. The method of optimization of distributing the sorting work between sorting and freight stations with the domestic cars in the railway junctions is presented.
THE QUALITY OF ELECTRICITY IN TRACTION NETWORK FOR THE DC ELECTRIC LOCOMOTIVES PANTOGRAPHS
Authors: Mishchenko T. M.
Published: June 2023

The numerical estimation of the electric energy quality parameters of voltage on a current collector of the DC electric rolling stock is executed.
ONE BASIC METHOD OF SOLVING INDETERMINATE EQUATIONS OF THE INTEGER POSITIVE NUMBERS
Authors: Voloshchuk V. V.
Published: June 2023

A method of solution of indefinite equations in integer positive numbers has been developed. The method has been applied to proof of the P. Fermat’s theorem.
SUGGESTIONS FOR THE EVALUATING OF RAILWAY DEFORMATION
Authors: Bondarenko I. O.
Published: June 2023

It is offered to bring in a criterion on an estimation of deformation capability of a railway track. The offers on itsvalues are given
THE CONTACT PARAMETERS OF THE ROLLING STOCK AND THE PERMISSIBLE SPEED DECISION BRAKE PROBLEM ON THE TRANS-SHIPPING AREAS
Authors: Korzhenevych I. P. , Todua T. Gh. , Toropov B. I.
Published: June 2023

Influence of the rolling stock parameters on the maximally permissible train traffic speeds according to the conditions of emergency braking on mountain pass sections is under consideration.
THE LONGITUDINAL AND TORSIONAL OSCILLATIONS OF A ROD SYSTEMS WITH TREE-LIKE OR ANNULAR STRUCTURE
Authors: Raspopov O. S.
Published: June 2023

The methods based on the theory of graphs and automatic machines are applied to research of longitudinal and rotational vibrations of rod constructions with tree or ring structure. High efficiency of the topological analysis of the graphs representing such systems is shown, the tables of transition for determination of codes of boundary parameters of rods are made, the technique of drawing up frequency equations in the vector-matrix form is presented.
THE MECHANISM MODEL OF THE LOCOMOTIVE PANTOGRAPH AS A MECHANICAL SYSTEM WITH PNEUMATIC ACTUATOR
Authors: Babiak M. O.
Published: June 2023

In the model developed it is suggested in a generalized form the method of study of operation of the electric locomotive pantograph mechanism as mechanical system with pneumatic drive. The method has practically important features and can be realized on a computer.
COMPARATIVE ANALYSIS OF DYNAMIC CHARACTERISTICS OF TURNSTILE AND FASTENING DEVICES, ROLLER, SKID, OR V-TYPES
Authors: Vasyliev S. M.
Published: June 2023

The mathematical model is developed for research of dynamic influences on the lengthy cargoes fixed with use of mobile fixing devices on basic cars, at various variants of impact of basic cars with other units of the rolling stock. Schedules of dependences of the maximal acceleration of a cargo from key parameters of fixing devices are obtained. Relationships, characteristic for dynamics of rolling, skidding and wedge fixing devices, are analyzed.
THE FEATURES OF ROLLING STOCK ADOPTION OF FOREIGN MANUFACTURE IN PARTS FIT THE DIMENSIONS ACCORDING TO NATIONAL STANDART 9238-83
Authors: Korotenko M. L. , Harkavi N. Ya.
Published: June 2023

The main mistakes of compliance with the clearance taking place during acceptance of the rolling stock manufactured in Europe for operation in the CIS and Baltic countries are listed.
THE USE OF IDENTIFICATION METHODS FOR ESTIMATING THE PARAMETERS OF BENDING OSCILLATIONS OF THE CAR BODY
Authors: Liapshyn K. M. , Vuchetych I. I. , Klokov O. V. , Baltskaps P. Ya.
Published: June 2023

The description of the developed method of vibration tests with the subsequent data processing is given.
THE STUDY OF THE STATE FREIGHT CAR TRUCKS IMPACT ON SIDE WEAR OF WHEEL FLANGES ON THE RESULTS OF MATHEMATICAL MODELING AND EXAMINATION OF CARS OPERATION
Authors: Orlova A. M. , Lisnychii V. S. , Artamonov Ye. I.
Published: June 2023

In the article the results of mathematical simulation of flange wear of freight wagon wheel in dependence on the bogie conditions (wear-resistant wheel profile, difference of bases on both sides, wear of wedge, difference of diameters of wheels) as well as the results of survey of bogies under operation are presented. The obtained correlation relationships of parameters allowed to estimate the efficiency of measures on reducing the side wear of wheel flanges.
THE DIAGNOSTIC SYSTEM OF PATH ON THE MODERN STAGE
Authors: Pevzner V. O.
Published: June 2023

In the paper a system of rail track diagnostics at modern stage is described.
THE FORECAST OF THE FREIGHT CARS NUMBER
Authors: Senko V. I. , Hurskyi Ye. P.
Published: June 2023

Performing the increasing amount of transportations under guaranteed safety of the train traffic is the most important priority for Belorussian railway. To do so, it is necessary to provide the transportation process with a modern, reliable rolling stock. At present this problem, related firstly to the ageing of freight wagon stock, is acute enough for Belorussian railway and has need for its quickest solution. For development of the efficient strategy of recovery and renovation of the rolling stock the great importance has a scientifically justified forecast of the working stock. A mathematical model of the forecast of working stock of freight-wagons is developed and its design values for a period till 2012 are obtained, which are taken into account and used in development of the business plan of the railway operation till 2010.
The problem of estimating the durability of the reinforced concrete bridges
Authors: Lantukh-Liashchenko O. I.
Published: June 2023

This paper presents an assessment and prediction of service life for reinforced concrete bridges. The deterministic and probabilistic approach prediction models of durability are proposed.
STATISTICAL ANALYSIS OF THE CUTS DIVISIONS NUMBER ON THE ARROWS AT THE DISSOLUTION OF THE ROLLING STOCKS
Authors: Bobrovskyi V. I. , Kudriashov O. V. , Yefimova L. O.
Published: June 2023

The procedure of determination of disintegration matrix of the uncoupled parts of a train has been developed. The statistical analysis of a number of disintegrations and its connection with a number of the uncoupled train parts has been also performed.
THE POWER RUBBER PRODUCTS WITH THE PREDICTABLE DEFORMATION CHARACTERISTICS FOR PICKING TROLLEYS OF DOMESTIC PASSENGER CAR
Authors: Skokov O. I. , Bespalova L. V. , Diachenko O. H. , Politaieva D. L. , Skorykova T. S.
Published: June 2023

The works on creation of the design, production technology and testing procedures for large-sized power rubber technical products making up a set of the bogie for a passenger coach are performed.
THE POSSIBILITY OF REDUCING THE IMPACT OF TRAFFIC NOISE ON THE PERSON IN THE PASSENGER CARS OF A RAILWAY TRANSPORT IS THE METHOD, BASED ON THE MASKING EFFECT
Authors: Shmakov S. V.
Published: June 2023

The problem of reduction of the long-term traffic noise effect on the person in coach passenger spaces is examined. The method of solving the problem is offered. The corresponding calculations and analysis of results are performed. The functional diagram on technical realization of this method is proposed.
THE REQUIRED NUMBER DETERMINATION OF MEASUREMENTS FOR ADVANCED VIBRO AND ACOUSTIC METHOD OF DIAGNOSTICS OF REINFORCED CONCRETE OF THE CONTACT ENVIRONMENT
Authors: Kuznetsov V. H. , Poliakh O. M.
Published: June 2023

The necessary quantity of making shocks on a support by the improved vibroacoustic method of detecting defective supports of the contact electric mains has been investigated.
THE PROTECTIVE SHUTDOWN IN CASE OF THE BREAKAGE OF THE CONTACT WIRES IN THE POWER SUPPLY SYSTEM OF RAILWAY TRANSPORT
Authors: Shkrabets F. P. , Ostapchuk O. V. , Hrebeniuk O. M.
Published: June 2023

The type of damages is considered when the malfunction of regular tools of protection from emergency regimes in a hauling network is probable. The use of device of protecting from the break of a contact wire is offered. The charts of realization of this device under various conditions of hauling networks are presented.
THE OPERATING COSTS REDUCTION IN CASE OF THE WARNINGS ABOLISHMENT OF THE TRAINS SPEED LIMIT
Authors: Chernyshova O. S.
Published: June 2023

The results of research of efficiency of elimination of train speed limitations are presented.
THE RISK ASSESSMENT OF TOXIC DEFEAT OF THE PEOPLE IN THE ACCIDENTAL EMISSION OF HAZARDOUS CHEMICAL SUBSTANCES
Authors: Gunko O. Yu.
Published: June 2023

The 3D numerical model to simulate the toxicant propagation at an industrial site after the emergency blow-out was developed. The model is based on the transport gradient model and the model of inviscous incompressible fluid. The results of numerical experiments are presented.
ACCOUNTING OF THE VARIABLE RESISTANCE OF CONCRETE AT AN EARLY AGE DURING THE MODELING OF LINING VERTICAL SHAFTS
Authors: Borshchevskyi S. V.
Published: June 2023

The combined technological chart for building of vertical shafts is analysed. The influence of strength properties of hardening concrete on interactions of the system «timber – massif» is explored by means of numerical simulation. The recommendations on perfection technology for timbering of deep shafts with a purpose of providing the durability and non-repair maintenance of shafts in the process of their exploitation are offered.
THE RELATIONSHIP OF THE ELASTIC AND STRENGTH PROPERTIES OF CLAYDITE-CONCRETE AND ITS COMPONENTS
Authors: Nikiforova M. O. , Maslyaev O. F.
Published: June 2023

The paper is dealt with mutual influence of resilient and cohesion characteristics of the mortar ingredients of lightweight aggregate concrete on its physical and mechanical properties.
MODAL ANALYSIS OF THE FOUNDATION OF THE OVERPASS BRIDGE TYPE BY THE METHOD OF FINITE ELEMENTS
Authors: Petrenko V. D. , Tiutkin O. L. , Selikhova T. O.
Published: June 2023

The results of modal analysis of overbridge with investigation of forms and frequencies of foundation by the finite-element method are presented in the paper.
LOGICAL MATRIX FOR THE LONGITUDINAL AND TORSIONAL VIBRATIONS OF CONTINUOUS BEAMS
Authors: Raspopov O. S.
Published: June 2023

The formal procedure for calculations of longitudinal and torsion vibrations of the multispan beams with continuous mass distribution on the basis of the method of start parameters, associated matrices and elements of mathematical logic is proposed.
DETERMINATION OF EQUIVALENT LOADS FROM ROLLING STOCK FOR LINES OF INFLUENCE OF ARBITRARY SHAPE
Authors: Sukhorukov B. D. , Sukhorukov S. B.
Published: June 2023

The algorithm for determination of equivalent load from a rolling stock (a vehicle) with the arbitrary given scheme of location of axles and axle-loads for influence lines of any form was suggested and performed on a computer.
DEVELOPMENT AND INVESTIGATION OF PERFORMANCE CHARACTERISTICS OF RUBBER AND REINFORCED BEARING PARTS OF INCREASED DURABILITY
Authors: Khorolskyi M. S. , Skokov O. I.
Published: June 2023

The research results, which have allowed creating the elastomer materials, technologies, methods of testing and forecasting the operation periods, are given, as well as the results of tests of rubber-reinforced pier parts of increased durability for bridge structures are presented.
THE PERMANENT DETECTION OF SHIFTS IN THE PROBLEM OF CALCULATION AUTOMATION OF THE CORRECTION RAIL CURVES
Authors: Lahuta V. V.
Published: June 2023

The numerical method of solution of a differential equation of railway shifts is presented allowing to calculate the quantity of shifts in any point of a railway curve during its straightening. Shifts calculated between the points of measurement of bend arrows can be used as control ones.
THE DEFINITION OF OPERATING COSTS FOR MANOEUVRING FOR THE FORMATION OF MULTIGROUP COMPOSITION WITH USING OF TRACTION CALCULATIONS
Authors: Papahov O. Yu. , Okorokov A. M. , Logvinov O. M.
Published: June 2023

The description of a calculation procedure of operation costs for shunting work during performance of shunting semitrips for making-up of train is considered.
THE DEPENDENCE OF THE INTERNAL STRESSES LEVEL IN THE ELEMENTS OF RAILWAY AXLES FROM THE REGIMES OF STRENGTHENING TREATMENT
Authors: Vakulenko I. O. , Hryshchenko M. A. , Perkov O. M.
Published: June 2023

The differential cooling of railway wheels parts affects the change of the wheel stress state.
THE METHODOLOGICAL ISSUES OF ECONOMIC MANAGEMENT DECISIONS
Authors: Solopenko R. I.
Published: June 2023

The necessity of economic ground of administrative decisions related to the operation, staff, financial, investment, information & telecommunication, innovative, marketing and international economic activities of an aviation enterprise is determined foe such an enterprise, and the procedure of economic substantiation of administrative decisions with use of economico-mathematical modelling in automated control system (ACS) for an aviation enterprise is implemented.
THE HOUR FULCRUM OF PIN DC NETWORK WITH HIGH RESISTANCE TO ELECTRIC CORROSION
Authors: Vasyliev I. L. , Pavlychenko M. Ye. , Pavlychenko M. Ye.
Published: June 2023

In UrGUPS a project of leg of the contact network support with a high resistance to electric corrosion is developed. New features are achieved through the protection of place of maximum mechanical load of the leg from flowing down currents in this zone by means of dielectric coating of some fixtures.
THE DYNAMIC PROPERTIES OF THE TRACTION DRIVE AS A ONE-DIMENSIONAL ELECTROMECHANICAL SYSTEMS
Authors: Kedrya M. M. , Kumpan M. L.
Published: June 2023

The one-dimensional electromechanical system with the hauling electric drive of successive excitation is examined. Differential equations, flow diagram and transmission function on entrance influence are given. The system operational modes under the determined and casual influences are considered.
THE CONVERTER FORMS OF A VOLTAGE TO THE SYSTEM POWER SUPPLY CONTACT SYSTEM AC
Authors: Panasenko N. V. , Honcharov Ju. P. , Zamarujev V. V. , Kryvoshejev S. Yu. , Ivanov O. Je. , Morozov P. P. , Sichenko V. H.
Published: June 2023

The structures of sine voltage to quasi-meander shape voltage converters, which allow increasing up to two times the traffic carrying capacity of the feeder mains, are considered.
THE NEUTRALIZATION OF TOXIC GAS CLOUDS IN THE ATMOSPHERE
Authors: Biliaiev M. M. , Lysniak V. M.
Published: June 2023

The 3D CFD model to simulate the pollutant transfer and the process of neutralization of toxic gas after accidents was developed. The model is based on the transport gradient model. The results of numerical experiments are presented.
SCIENTIFIC AND TECHNICAL AND ECONOMIC APPROACH AND SOME THEORETICAL AND EXPERIMENTAL DEVELOPMENTS IN THE USE OF INDUSTRIAL WASTES IN CONSTRUCTION
Authors: Bolshakov V. I. , Savin L. S. , Prykhodko O. P. , Pshinko O. M. , Savin Yu. L. , Dubov T. M. , Savin Ye. Yu.
Published: June 2023

A new techno-economic approach to the use of technogenic wastes in construction is proposed in this article. The theoretical-and-experimental developments on steel corrosion kinetics in the sodium-calcium silicates with the replacement of oxygen anion on fluorine and chlorine are given. In this study some physico-chemical principles of making a new glass subclass with chlorine-containing anionic complexes are presented.
AUTOMATED CONTROL SYSTEMS OF SHORT-TERM COURSES AND THEIR PLACE IN THE ASC OF UNIVERSITY DEPARTMENT
Authors: Kryvakovska R. V.
Published: June 2023

Main prerequisites for creation of automated control systems for short-term courses of qualification upgrading are analyzed in this article. Also main tasks for the system are considered, the system structure are given. Some issues on its realization are considered as well.
THE NEURAL NETWORK ESTIMATION OF THE VOLUME OF THE DEFECT IN THE GROWTH AREA OF SOUNDING PULSE
Authors: Pashchenko V. O. , Matvieieva N. O.
Published: June 2023

The neural networks with associative memory have been proposed to estimate the size of surface solidness defect of current-conducting material (article) with the help of the increases of electromagnetic probing impulse area (average amplitude).
ORGANIZATIONAL AND LEGAL BASIS FOR THE USE OF AIRCRAFT IN THE AGRARIAN SECTOR OF UKRAINIAN ECONOMY
Authors: Baran R. T. , Baran L. M.
Published: June 2023

The problem of determination of the principles of organizational and legislative basis of the use of aviation in Ukrainian agriculture is discussed in this article. An example of carrying out the aviation-and-chemical works in agriculture, their legislative providing and environmental safety of conduction is analyzed. The basic models of effective aviation works as well as forms of introducing the modifications and amendments into the laws in force from the viewpoint of economic safety of agricultural industry are offered.
THE IMPROVEMENT OF THE COMPENSATION PROCEDURE IN MONETARY FORM FOR LOST OR DAMAGED FREIGHT WAGONS OF OTHER STATES
Authors: Gnennyi O. M.
Published: June 2023

It is found that the cost of lost (damaged) wagons determined in accordance with the operating order of indemnity of losses differs considerably from the market cost. This difference is related to a discrepancy of normativeprices on new wagons to the prices of manufacturers as well as to a gap of used method of account of wagon deteriorationto the relation between the cost and the time of wagon operation, which is at the market. At the choice ofmoney form of indemnity of losses, it is suggested to determine the wagon cost by independent (expert) estimate or the set norms at the discretion of railway administration-owner. In so doing, to change the method of determinationof wagon deterioration from a rectilinear one on a method of decreasing rest. In addition, the periodic update ofnormative prices on new wagons should be provided.
THE URGENCY OF DEVELOPING A COMPREHENSIVE STRATEGY OF UKRAINIAN AIRLINES TO FOREIGN MARKETS
Authors: Skydonenko N. V.
Published: June 2023

In the article the influence of modern processes in the world economy on forming a transport provision in the field of tourism is analyzed.
ENERGY PRINCIPLES OF MUTUAL LOADING OF ELECTRICAL DC MACHINES
Authors: Afanasov A. M.
Published: June 2023

The conditions of providing the mutual loading of DC electric machines are considered.
THE METHOD OF ASSESSING PROFILES OF THE ROLLING STOCK WHEELS
Authors: Blokhina H. S.
Published: June 2023

The criteria of grounding for the choice of railway wheel rolling surface profile are proposed.
THE IMPROVEMENT OF THE SOCIAL AND ECONOMIC FUNCTIONING OF THE BANKING SYSTEM AND INSURANCE MARKET
Authors: Kalambet S. V. , Sukhichenko-Lialka L. V.
Published: June 2023

In the article the problems in economy of functioning of banks and insurance companies are analyzed, the directions of its further increasing are offered.
THE IMPACT OF THE TRACK PLAN ON THE SPEED AND OPERATING COSTS
Authors: Korzhenevych I. P.
Published: June 2023

The influence of plan parameters on speed and operational expenses is examined.
METHODS OF IMPROVING THE RELIABILITY OF THE CONTROL SYSTEM TRACTION POWER SUPPLY OF ELECTRIC TRANSPORT BASED ON AN EXPERT INFORMATION
Authors: Matusevych O. O.
Published: June 2023

The author proposed the numerous methods of solving the multi-criterion task – increasing of reliability of control system on the basis of expert information. The information, which allows choosing thoughtfully the method of reliability increasing for a control system of electric transport, is considered.
THE AUTOMATED TRAFFIC MANAGEMENT ON ROAD TRANSPORT IN THE CITIES OF UKRAINE
Authors: Naumov V. S.
Published: June 2023

The mathematic model of a cross-roads for projecting local automatic system of traffic control has been given. The software realization of model used in a module of automatic system of traffic control has been considered.
NUMERICAL MODELING OF THE PROPAGATION OF POLLUTANTS IN THE ATMOSPHERE TAKING INTO ACCOUNT TERRAIN-BASED MODEL TEAR VORTEX FLOW OF A PERFECT FLUID
Authors: Pshinko O. M. , Biliaiev M. M. , Mashyhina P. B.
Published: June 2023

The 2D numerical model to simulate the pollutant dispersion over complex terrain is proposed. Results of numerical experiment are presented.
POLYMER AND CEMENT MORTARS FOR THE CONSTRUCTION AND REPAIR OF BUILDINGS AND STRUCTURE
Authors: Pshinko O. M. , Palii V. V. , Krasniuk A. V.
Published: June 2023

In the article the analysis of polymer-cement mortars for their application in construction and repair of buildings and structures is presented. The main properties of known polymer-cement mortars used for this purpose are described. The advantages of application of polymer-cement mortars as repair materials are shown.
THE CHANGE IN DEFORMATION CHARACTERISTICS OF CONCRETE MONOLITHIC HIGH-RISE BUILDINGS
Authors: Punahin V. V.
Published: June 2023

In the article results of studies of deformation features of concrete on actuate cement for monolithic high-altitude buildings are presented. It is shown that in construction of the high-altitude monolithic buildings in a summer period of a year one should take into account the character of changing the concrete elasticity and plasticity in time, which differs from the same indices for the concrete of normal hardening.
THE RECOVERY OF PERFORMANCE CHARACTERISTICS OF STRUCTURES TRANSPORT CONSTRUCTIONS
Authors: Rudenko D. V.
Published: June 2023

The basic groups of factors affecting negatively the of concrete structure in transport structures and decreasing their longevity are determined in the article. They are the destruction of basic construction materials, the extreme loadings and influence on constructions of the structures, as well as operational violations. In real conditions these factors are in interaction, which is casual and indefinite in character. In this context the interaction of some factors
THE OPERATION MODES OPTIMIZATION OF THE NEUTRAL DISTRIBUTION NETWORKS
Authors: Shkarbets F. P. , Kovalov A. I.
Published: June 2023

The variants of grounding the neutral wire of electric networks are considered and the recommendations are presented on increasing the level of operational reliability and electric safety of distribution networks with 6 kV voltage on the basis of limitation and suppression of transitional processes at asymmetrical damages.
Os impactos da Base Nacional Comum Curricular (BNCC) no trabalho de professores de Ciências dos anos finais do Ensino Fundamental
Authors: Krützmann Fábio Luis , Alves Deborah Karla Calegari , Silva Cirlande Cabral da
Published: June 2023

Resumo Este artigo versa sobre a chegada da Base Nacional Comum Curricular (BNCC) e seus impactos no trabalho de professores de ciências. A Teoria Fundamentada foi utilizada como metodologia da pesquisa, que consiste em uma forma de pesquisa qualitativa maleável e, ao mesmo tempo, rigorosa, e objetiva responder problemas complexos, propondo teorias explicativas sobre a realidade estudada. Por meio de entrevistas semiestruturadas com professores de ciências de uma cidade brasileira, foi angariado um conjunto de dados, os quais, por meio de consecutivas codificações, serviram de base para a seguinte teoria substantiva: a BNCC traz mudanças de alto espectro à educação básica e, diante disso, os professores de ciências identificam uma ampliação dos conteúdos a serem trabalhados, trazendo novas exigências para os alunos, levando a modificações no trabalho dos professores, movimento que contrasta com a formação atual destes, gerando lacunas de formação.
Perícia em vozes auditivamente semelhantes
Authors: Carmo Sandra , Rehder Maria Inês Beltrati Cornacchioni , Almeida Larissa Nadjara , Villegas Cristian , Dantas Cirana Raquel Vasconcelos , Vasconcelos Daniela , Andrade Emanuel
Published: June 2023

RESUMO Objetivo: verificar contribuições da análise espectrográfica acústica na identificação forense de falantes em vozes auditivamente semelhantes, considerando o comportamento distintivo dos parâmetros acústicos: formantes da vogal “é”, da fala encadeada, média da frequência fundamental em Hz, curva de predição linear da vogal “é” e área da curva de predição linear; propor um método objetivo da utilização dos parâmetros analisados. Métodos: estudo quantitativo, qualitativo e descritivo, realizado em Pernambuco com 16 pares de irmãos do sexo masculino, entre 18-60 anos. Os sujeitos gravaram vídeos de onde extraíram-se os áudios que foram numerados e enviados a três avaliadores, em dois grupos: dos irmãos mais velhos e dos irmãos mais novos, para pareamento perceptivo-auditivo. Os pareamentos corretos, apontados por pelo menos dois avaliadores, foram submetidos à análise acústica. Os testes estatísticos foram Wilcoxon, Kruskal-Wallis, Bonferroni, com p<0,05. Resultados: os resultados das análises dos formantes e da média da frequência fundamental não foram suficientes para distinguir as vozes semelhantes. Ineditamente nas medidas das áreas geradas pelos gráficos da curva de predição linear, foi verificada significância estatística distintiva. Conclusão: concluiu-se que entre os parâmetros estudados, as medidas das áreas da curva de predição linear apontaram, objetivamente, eficácia na distinção de falantes com vozes auditivamente semelhantes.
O sistema de saúde pública e o lugar do autismo
Authors: Mandaj Vanini , Simões-Zenari Marcia , Molini-Avejonas Daniela Regina
Published: June 2023

RESUMO Objetivo: caracterizar a população com Transtorno do Espectro Autista e a Rede de Atenção Psicossocial de Taboão da Serra-SP. Métodos: estudo realizado com usuários da rede de saúde de Taboão da Serra com Transtorno do Espectro Autista com até 18 anos. Os dados dos participantes foram coletados dos prontuários do Centro de Atenção Psicossocial Infantil de Taboão da Serra com autorização da Secretaria Municipal de Saúde e as informações coletadas foram analisadas por vertente quantitativa. Resultados: o total de usuários com Transtorno do Espectro Autista na referida rede de saúde em abril de 2019 foi de 237. Destes, 188 realizavam atendimento no Centro de Atenção Psicossocial infantil, 110 em atendimento semanal. Verificou-se predominância do sexo masculino (73,63%), faixa etária de 3 a 10 anos com maior porcentagem em 5 anos (17,27%), e tempo médio de atendimento de 32 meses. a menor idade encontrada foi 2 anos de idade. Metade da amostra (50%) concentra-se em atendimento semanal e abordagem medicamentosa da homeopatia. Foram encaminhados 24 usuários (21,81%) pelo fonoaudiólogo e 19 (17,27%) pela escola. Considerações Finais: apesar da referência do território ser o Centro de Atenção Psicossocial infantil sabe-se que este equipamento por si só não atende a todas as necessidades dos indivíduos com Transtorno do Espectro Autista. Utilizar uma rede de serviços articulada segundo a demanda individual do paciente e a realidade do território garantiria os direitos almejados, diminuição de gastos públicos e permitiria a ocupação destes usuários não mais em um único lugar, mas sim “lugares”.
Transexualidade e demandas de saúde: representações de graduandos de Enfermagem
Authors: Queiroz Ana Beatriz Azevedo , Castro Alison Malheiros de , Carvalho Ana Luiza de Oliveira , Pinto Carina Bulcão , Bezerra Juliana da Fonsêca , Gonçalves Diana da Silva , Santos Gabriela Silva dos , Santos Hannah de Melo dos
Published: June 2023

RESUMO Objetivo: Analisar as representações sociais dos graduandos de enfermagem acerca da transexualidade e as demandas de saúde das pessoas transexuais. Métodos: Pesquisa qualitativa, descritiva, com 28 graduandos em enfermagem de uma universidade pública do Rio de Janeiro/Brasil. Realizou-se uma entrevista semiestruturada, no período de novembro de 2017 a março de 2018, e análise tipo lexical com auxílio do software Alceste 2012. Resultados: A transexualidade foi representada como uma transgressão, sendo a pessoa transexual objetivada como antinatural por não se identificar com seu sexo biológico. Terapia hormonal e cirurgias de redesignação sexual foram entendidas como as principais demandas, sendo ancoradas numa esfera patologizante e medicalizadora da saúde. A temática não é abordada durante a graduação, gerando despreparo para vida profissional. Considerações finais: Faz-se necessário ampliar as discussões sobre gênero na academia, tendo como propósito a transposição do imperativo da heteronormatividade, para que futuros enfermeiros estejam aparelhados para fornecer um cuidado integral e equânime.
Imagem corporal da mulher durante amamentação: análise suportada em teoria de enfermagem
Authors: Primo Cândida Caniçali , Ferreira Carolina Itabaiana , Soares Joicilayne da Silva , Muri Lucimar Andrade Cardoso , Lima Eliane de Fátima Almeida , Brandão Marcos Antônio Gomes
Published: June 2023

RESUMO Objetivo: Descrever e interpretar a percepção da mulher acerca da sua imagem corporal durante o processo de amamentar. Método: Estudo descritivo qualitativo realizado em hospital universitário da região sudeste, Brasil. Foram entrevistadas 43 puérperas que estavam amamentando.As entrevistas foram submetidas à análise lexical com o softwareIRAMUTEQ e interpretadas baseadas na Teoria Interativa de Amamentação. Resultados: As mulheres referem insatisfação com as mudanças na imagem corporal durante a amamentação. Mas também, valorizam e desejam manter a amamentação devido as vantagens para o filho. E várias expressam o desejo de realizar cirurgia plástica futuramente frente a essas mudanças corporais. Conclusão: A percepção da mulher sobre suaimagem corporal como satisfatória/ insatisfatória aponta que as mudanças corporais revestem o processo de amamentação de sentimentos de ambiguidade.As mudanças corporais são percebidas pelas mulheres de forma pessoal, subjetiva e complexa.
Transtornos psiquiátricos menores em estudantes universitários durante a pandemia da COVID-19
Authors: Kantorski Luciane Prado , Guedes Ariane da Cruz , Brum Aline Neutzling , Treichel Carlos Alberto dos Santos , Santos Vinícius Boldt dos , Gonçalves Bianca Albuquerque , Almeida Mariana Dias
Published: June 2023

RESUMO Objetivo: Identificar a prevalência e os fatores associados à manifestação de Transtornos Psiquiátricos Menores (TPM) em estudantes universitários do Sul do Brasil durante a pandemia da COVID-19. Método: Estudo transversal, realizado nos meses de agosto e setembro de 2020, com 464 estudantes universitários. Foi utilizado o Self-Reporting Questionnaire (SRQ-20) com o ponto de corte ≥ 7, e identificados os fatores associados por meio de análises brutas e ajustadas com emprego de regressão logística. Resultados: A prevalência de TPM foi de 76,5%. Os fatores positivamente associados ao desfecho foram as pessoas do sexo feminino, perda de emprego durante a pandemia, uso de substâncias psicoativas e dificuldades para acompanhar as aulas on-line. Esteve negativamente associado ao desfecho, estar em distanciamento social por período igual ou superior a sete meses. Conclusão: O estudo sugere alta prevalência de TPM entre os universitários e a relação entre esse desfecho e os desdobramentos da pandemia da COVID-19.
Transições vivenciadas por mães de crianças/adolescentes com doença falciforme no contexto da pandemia da COVID-19
Authors: Brito Luana Santana , Teixeira Juliane Batista Costa , Morais Aisiane Cedraz , Santos Luciano Marques dos , Suto Cleuma Sueli Santos , Jenerette Coretta Melissa , Carvalho Evanilda Souza de Santana
Published: June 2023

RESUMO Objetivo: Analisar as transições vivenciadas por mães de crianças/adolescentes com doença falciforme após o surgimento da pandemia da COVID-19. Método: Estudo qualitativo, envolveu 19 mães de crianças e adolescentes com doença falciforme. Os dados foram obtidos mediante entrevistas semiestruturadas via WhatsApp, seguidas de Análise Temática e Classificação Hierárquica Descendente com auxílio do Interface de R pourles Analyses Multidimensionnelles de Textes et de Questionnaires e interpretados à luz da Teoria de Transições de Afaf Meleis. Resultados: Apoio dos familiares para deslocamento; adesão das mães à rotina de estímulos diários e exercícios físicos favoreceram as transições saudáveis; inexistência de atendimento de saúde remoto; baixos recursos socioeconômicos; interrupção do serviço de fisioterapia; e sobrecarga materna favorecem as transições insalubres. Considerações finais: Esforços/movimentos das mães asseguraram a transição saudável de crianças/adolescentes com doença falciforme durante a pandemia, ao mesmo tempo que corroborou para a transição insalubre das mesmas.
Quantifying health utilities of young adult orthodontic patients using the time trade-off method: a cross-sectional study
Authors: PAUL Budhaditya , URALA Arun Srinivasa , ACHARYA Shashidhar
Published: June 2023

ABSTRACT Objective: To study the feasibility of time trade-off (TTO) method in quantifying health utility ratings in different types of malocclusion. Material and Methods: In this cross-sectional study, 70 orthodontic patients aged 18 years or above, reporting for treatment/consultation, were included and interviewed. Malocclusion-related health utilities were assessed through the TTO method, and oral health-related quality of life was measured with the help of Orthognathic Quality of Life Questionnaire (OQLQ). Angle’s classification of malocclusion was recorded. Bivariate analyses and multivariate Poisson’s regression were done to find out an association between the oral health utility values, OQLQ and demographic and clinical characteristics. Results: Patients with skeletal Class III malocclusion had lower health utility values than those with Class I and Class II malocclusions (p=0.013). Poisson’s regression showed that Angle’s Class II division 1 (0.90, CI 0.84 to 0.97), Class III (0.68, CI 0.59 to 0.95) and Skeletal malocclusion (0.79, CI 0.71 to 0.87) and OQLQ scores (1.0, CI 1 to 1.003) were found to be significant predictors of TTO utility scores. Conclusions: TTO utilities were found to be valid and well correlated with clinical findings. Health utilities could serve as useful and reliable markers of health-related quality of life (HRQL) among individuals or communities and help cost-effective preventive or intervention programs planning.
PRESSURE ULCERS IN PEDIATRIC PATIENTS: CAUSAL FACTORS AND THERAPEUTIC MANAGEMENT
Authors: Ramos Gabriely Westphal , Monteiro Daiane da Rosa , Rodrigues Pâmela de Oliveira , Wegner Wiliam , Breigeiron Márcia Koja
Published: June 2023

ABSTRACT Objective: to trace the sociodemographic and clinical profile, causal factors, and therapeutic management provided to children with pressure ulcers during hospitalization. Method: cross-sectional study; retrospective. Sample of 64 medical records of children with PU, admitted to a hospital in southern Brazil, from January/2016 to July/2021. Data analyzed by descriptive and inferential statistics. Results: Profile of children in intensive care (62.5%); stage 1 pressure ulcers (35.9%); and use of simple cover (37.5%). Of the total cases, 25% by medical device use. Consultations were related to stage 3 injury (p=0.027). Nursing diagnosis risk of pressure ulcer was identified in 48.4% of cases, while the Braden/Braden Q scale was identified in 78.1%. Patients classified as high risk (46%) had limited mobility (p=0.000). Conclusions: Pressure ulcers in children in intensive care with limited mobility require everything from simple intervention to consulting according to the classification of the injury.
Processo formativo a distância em Segurança Alimentar e Nutricional na Comunidade dos Países de Língua Portuguesa: construindo práticas educativas
Authors: Galesi-Pacheco Lilian Fernanda , Perinelli Neto Humberto
Published: June 2023

Resumo Processos formativos para fortalecer a segurança alimentar e nutricional (SAN) como política são demandas da Comunidade dos Países de Língua Portuguesa (CPLP). Objetivamos descrever e analisar práticas educativas desenvolvidas pelos docentes, visando refletir e propor ajustes para aprimorar o processo formativo a distância em SAN no contexto da CPLP. O curso foi composto por alunos do Brasil; Cabo Verde; Moçambique e São Tomé e Príncipe. A pesquisa é aplicada, teve abordagem qualitativa e natureza descritiva e explicativa, empregando videoaulas como materiais de estudo, principalmente, com base na Análise Textual Discursiva. A proposta indica que cursos de mesma natureza requerem da gestão educacional formação docente; reconhecimento do conhecimento dos discentes; inserção de dialogia nas videoaulas; oferecimento de atividades locais capazes de gerar compreensão da realidade; criação de sequência para elaboração do Trabalho de Conclusão (TCC); e desenvolvimento do TCC visando à transformação da realidade.
Teatro-pedagogía, una experiencia de construcción de paz en Antioquia, Colombia. Sus aportes a la salud mental
Authors: Hernández-Holguín Dora María , Urrea-Arroyave Rubén Darío , Vaca-Martínez Nelson Agustín
Published: June 2023

Resumen El estudio de la salud mental, en Colombia y en el mundo, ha sido enfocado desde una perspectiva morbicéntrica y conductual. Este trabajo presenta un estudio de caso que tuvo como objetivo comprender de qué manera el proceso de formación en teatro-pedagogía, como iniciativa de construcción de paz, puede aportar a la salud mental. A partir de la confluencia del teatro social, la pedagogía crítica y las experiencias de vida de los y las participantes, se realizó análisis documental, y categorización al diario de campo, entrevistas y grupos de discusión. Participaron personas involucradas en la formación y público asistente en los foros de las presentaciones teatrales. Se encontraron elementos sobre sanación, cuerpo, juego, movimiento y simbolización en relación con salud mental. Se espera que este sea un aporte a la democratización en salud mental en contextos de sufrimiento social.
Trabalhadores de plataformas digitais: mundialização, superexploração e luta de classes
Authors: Felix Gil
Published: June 2023

Resumo A partir da teoria do valor de Marx e dos aportes sociológicos de Ruy Mauro Marini, o artigo analisa as condições de trabalho dos(as) trabalhadores(as) da empresa Uber e empresas similares de aplicativos, assim como as formas de resistência que estão sendo empregadas por eles(as), nacional e internacionalmente. Para tanto, em um primeiro momento, aborda as implicações teóricas da exploração do trabalho realizada pelas plataformas digitais. Em seguida, a partir de dados de pesquisas realizadas junto aos trabalhadores e de dados de natureza secundária, analisa: i. as condições pelas quais vieram a ter maior adesão, visibilidade e difusão para outros setores; ii. as estratégias mundiais de mercado e de mudança das regulações trabalhistas implementadas por essas plataformas; iii. as formas de controle e de resistência que vêm sendo adotadas pelos trabalhadores. À guisa de conclusão, dada a característica autônoma de suas manifestações frente aos meios de convocação e às direções dos organismos sindicais tradicionais e, em particular, dadas as reivindicações imediatas de caráter internacionalista, o artigo apresenta uma possível agenda de comparação com as manifestações e os movimentos antiglobalização de massa até então em voga.
O projeto de capitalização da Previdência Social no governo Bolsonaro: o mercado como estratégia de aposentadoria
Authors: Jardim Maria Chaves , Moura Paulo José Carvalho
Published: June 2023

Resumo O objetivo geral do artigo é contribuir para o debate sobre reforma da Previdência Social, identificando as principais justificativas que embasaram o projeto da reforma apresentada pelo governo de Jair Bolsonaro, em 2019. O objetivo específico é identificar se existe solidariedade na proposta oferecida pelo governo. Nossa metodologia foi baseada na coleta e análise de discursos proferidos pelo principal agente do processo, Paulo Guedes, além de dados complementares junto a Jair Bolsonaro e Rogério Marinho. Tem como inspiração teórica a sociologia de Pierre Bourdieu e insights da sociologia econômica. Os resultados apontam que todas as justificativas acionadas pelo principal agente envolvido na reforma da previdência de 2019 tiveram como objetivo aprovar a transição de um modelo de previdência baseado na repartição, para um modelo de capitalização e que a capitalização da Previdência Social não foi apresentada como complementar, tal qual nos governos anteriores, mas como modelo obrigatório. Se aprovada, a previdência do Brasil passaria a existir em um modelo paralelo, a saber, a manutenção do modelo de repartição para servidores públicos e trabalhadores do setor privado já integrados ao sistema e ao modelo de capitalização para os jovens ingressantes no mercado de trabalho.
Effect of recycled oyster shell powder on hydration and strength development of magnesium phosphate cement
Authors: Chen Bingcong , Zhang Junping , Liu Airong , Zhang Liwen , Xie Zhujian , Ouyang Xiaowei , Ma Zhongguo John
Published: June 2023

Using oyster shell powder (OSP) to prepare magnesium phosphate cement (MPC) not only reduces the pollution caused by the wasted oyster shell disposal, but also benefits the development of more environmentally friendly cement. The effect of OSP on the hydration and strength development of MPC was studied. An axial compression experiment including 45 cuboid specimens was executed to investigate the compressive strength, failure mode, stress–strain relationship, and energy absorption of MPC mixing with different mass contents (0% to 12%) of OSP over the curing times of 7, 14, and 28 days. Scanning electron microscopy, X-ray diffraction and energy dispersive spectroscopy were utilized for measuring the variation of MPC microstructure and hydration products caused by OSP. Results indicated that a new reactant CaHPO4·2H2O was formed, which optimized matrix strength. The substitution of OSP could reduce the cost of MPC by 2–9% without decreasing the strength. Compared with MPC without OSP, the compressive strength of the specimen with 3% OSP is increased by 6%. However, with the continuous increase of OSP, the compressive strength gradually decreases. Similarly, the elastic modulus of MPC increases first and then decreases with the increase of OSP.
A Quasi-experimental Intervention Study on Handwashing Behavior of Healthcare Workers in the Emergency Department
Authors: YILDIRIM ÖZTÜRK Elif Nur , UYAR Mehmet , ÖZTÜRK Mustafa , ŞAHİN Tahir Kemal
Published: June 2023

Objective: In this study, it was aimed to determine the attitudes, behaviors and knowledge of healthcare workers working in the emergency department of a hospital and to ensure correct handwashing with an intervention related to handwashing behavior.

Material and Method: The research was a quasi-experimental intervention study (retrospective pre-test/post-test design). The number of participants was 131 (research participation rate 86.7%). A data collection form comprising 37 questions was used. As a training intervention, a text was read to the participants under observation. Data were summarized with mean±standard deviation, median (min-max), frequency distributions, and percentages. The chi-square and Mc-Nemar tests were applied to investigate the relationships between data. p