bluuebunny/crossref_metadata_2025 huggingface dataset:
Treatment of limb combat blast wounds using negative pressure
Authors: Vyrva Oleg , Mikhanovskiy Dmytro , Bets Iryna , Bitsadze Marianna , Shevchenko Igor , Rykun Mykola , Skidanov Mykyta
Published: June 2023

Blast injury (BI) is a combat multifactorial injury resulting from the impulse action of the complex traumatic factors by the mine munition explosion, characterized an interconnected and increasingly severe impact, massive deep tissue damage and the development of a general contusion-shock syndrome. For severe BI with large skin and soft tissue defects, it is advisable to use negative pressure wound therapy (NPWT). Objective. To analyze the effectiveness of using the NPWT system in patients with blast injuries. Methods. Publications were searched in electronic systems Google Scholar, PubMed, ScienceDirect, archives of specialized journals. The results of treatment using NPWT of 134 patients were analyzed: 130 (97 %) men and 4 (3 %) women, average age 36.6 years (22‒64). According to the types of injuries, the patients were distributed as follows: blast injury — 128 (95.5%), bullet injuries — 6 (4.5 %). The results. The goal of BI treatment by negative pressure is to improve wound healing through multiple mechanisms of action at the macroscopic and microscopic levels. The use of NPWT reduces the risk of infectious complications, prevents excessive progression necrosis of affected tissues, accelerates the growth of granulation tissues and reduces pain syndrome. The result of the treatment is the wound preparation for primary healing or, in the case of significant soft tissue damage, the creation of favorable conditions for performing plastic surgeries. In general, NPWT accelerates treatment times, reduces risks of complication level and improves functional results. This current own research coincides with the results of majority authors and allows us to continue work in this direction. Conclusions. Treatment of blast injury wounds with the use of vacuum bandages and devices for creating negative pressure is an effective approach that contributes to the reduction of infectious complications, the growth of granulation tissue, facilitates further skin plasticity of the defect, accelerates the recovery time of the wounded and his rehabilitation.
Group antibodies as factors specifically influencing erythrocytes sedimentation rate
Authors: Korzh Mykola , Leontyeva Frieda , Dunayeva Inna , Povelychenko Olena , Dielievska Valentyna
Published: June 2023

The use of the erythrocyte sedimentation rate (ESR) method has been recognized in monitoring the inflammation process, with a proven role of proinflammatory factors in the ESR increase. The aim. To reveal the role of group antibodies in the specific increase of ESR. Methods. For the study erythrocytes with EDTA anticoagulant were used. ESR was measured after the contact of erythrocytes with saline (negative control), standard anti-A and anti-B antibodies of the IgM class, polyclonal anti-A, anti- B, anti-A, B sera (experiment), as well as serum of group AB in a ratio 1 : 3: 0.2 ml of erythrocytes and 0.6 ml of saline or serum. The results were evaluated after one and 12 hours of incubation, at room temperature and at 4 °C. Results. Contact of anti-A IgM antibodies at a dilution of 1 : 30 with A erythrocytes led to an increase of ESR (from (3.25 ± 0.50) mm/h to (83.7 ± 1.60) mm/h) (p < 0.001) with a presence of a red precipitate. The contact of erythrocytes with polyclonal citrate plasma (or serum) in a ratio of 1 : 2 led to a similar increase in ESR in cases of the specific binding. Anti-A, B serum increased ESR of A erythrocytes up to (53.00 ± 2.64) mm/h (p < 0.001) with the presence of a red precipitate, while anti-B serum did not show such effect: (ESR — (5.25 ± 0.50) mm/h) (p > 0.05). It should be noted that the serum absorbed by the corresponding erythrocytes showed reduced ESR values. After the absorption of anti-A antibodies by A erythrocytes the serum lost the ability to specifically increase the ESR of A erythrocytes. Conclusions. Group antibodies are able to specifically promote ESR. The found ability can be reduced by the method of specific absorption of the serum. The physicians may consider the role of group specific autoimmune antibodies in developing high values of ESR. The therapy aimed to regulate the autoimmune humoral activation and specific absorption might be useful in normalization the ESR parameter.
PROSPECTS OF WATER TRANSPORT FUNCTIONING IN UKRAINE
Authors: TARASIUK A.V. , SHANDOVA N.V. SHANDOVA N.V.
Published: June 2023

The purpose. The work is devoted to the study of the peculiarities of the functioning of water transport enterprises in the conditions of uncertainty of the economic environment and the study of prospects for the development of water transport enterprises. Methods. To solve scientific problems used: comparative analysis of empirical data; abstract-logical generalization. The results. The peculiarities of the functioning of river and sea transport in Ukraine in the conditions of uncertainty of the economic environment are studied in the work. Based on the comparative analysis of water freight volumes, the prospects for the development of water transport in Ukraine and increasing the efficiency of its operation are determined. It is established that the advantages of wide use of water transport are the lowest cost of freight transportation per conditional ton of cargo, relatively low investment required to restore the industry, and significant potential and well-developed infrastructure of water transport enterprises. Scientific novelty. In the process of analyzing the efficiency of water transport, relatively small amounts of investment required to restore the industry have been identified. The practical significance. Some results and conclusions can be used by government agencies in drafting government programs to regulate the activities of water transport enterprises.
STATE INTERESTS IN PUBLIC-PRIVATE PARTNERSHIP PROJECTS
Authors: KHMUROVA V. , LIKARCHUK L.
Published: June 2023

Objective. The article addresses the issue of determining every participant’s interests in development projects, especially the state interests. Methods. To solve this scientific problem it is applied a structural method of comparative analysis in abstract-logical generalization. On the basis of the analysis of literary sources and the existing work experience, the possible variants of state participation in the projects and the peculiarities of their application were identified. The problems of estimating the role of each project participant in uncertainty are identified. Results. On the basis of the literary sources analysis and the existing work experience the possible variants of state participation in the projects and the peculiarities of their application were identified. The problems of estimating the each project participant role in uncertain environment are identified. Practical relevance of the research. The main provisions of the scientific article will provide an opportunity to provide prospects of the state involvement in projects at the expense of the mentioned factors, taking into account its interests and the perspectives of private partners.
PROBLEMS AND GUIDELINES OF THE DEVELOPMENT OF CONSTRUCTION ENTERPRISES IN THE CURRENT CONTEXT OF ECONOMIC ACTIVITY
Authors: METELENKO N.H.
Published: June 2023

Abstract. The study was aimed at revealing the problems were faced by domestic enterprises of the construction industry and enterprises of related industries of the national economy of Ukraine, which are customers or consumers of construction products. The importance of efficient work of construction enterprises for the economy as a whole was substantiated. It was emphasized that the search for mechanisms to improve the efficiency of the construction industry is complicated nowadays by processes of intensification of the political and financial crisis in Ukraine, which also are slowing down the development of integration processes into the European Economic Area. The decisive role of creating a favorable investment business climate, the consistent transition from domestic to European standards in construction, the reforming the legislative and regulatory framework in the industry have been defined.
According to the official data of the State Statistics Service of Ukraine, the dynamic of the volume of construction products was analyzed and the trends and consequences of changes in the industry were substantiated. It was proved that the efficiency of construction enterprises depends on a number of factors that are specific to enterprises in this industry, the main of these factors are: the use of construction products is possible only at the place of its production and there is a significant dependence of the industry on natural factors that in case of the unplanned events have negative affect to the duration of the technological cycle and lead to additional loss of resources; features of temporary interaction between enterprises and organizations of different sectors of the national economy during the creation of construction products necessitates technical-economic and technical-technological intra-and inter-industry links. It was emphasized that the systematized characteristics of the industry are the prerequisites on which the anti-crisis strategy of enterprise development should be based, which determines the priority directions of development and the mechanism of their financing.
The analysis of the structure of sources of financing of capital investments in Ukraine was carried out. The complexity of the conditions of operation of construction enterprises was proved, which increases the responsibility and independence in making management decisions to ensure the efficiency of their economic activities in the current conditions of integration into the EU. The guidelines for the development of construction enterprises were outlined, taking into account the current trends in the industry and the economy of Ukraine as a whole, which will further form an anti-crisis strategy for the development of the industry aimed at integrating the domestic economy into the European Economic Area.
DUAL EDUCATION AS A MEANS OF EFFECTIVE COMBINATION THEORY AND PRACTICE
Authors: MARTSENIUK L.V.
Published: June 2023

Object. The article is devoted to identify the main aspects of the organization of the dual form of education in Ukraine. Methods. To solve this scientific problem applied: structural method; comparative analysis of empirical data; abstract-logical generalization. Models of organization of the dual education system in the leading countries of the world are analyzed. Results. The author determines that the dual form can be the solution of today's problems in the relationship between the school, the student and the employer. Applicants for dual education are guaranteed to get their first job, which will eventually help stop the departure of qualified personnel from Ukraine abroad. Higher education institutions will increase their competitiveness in the market of educational services, as the organization of dual education will update the curricula, which will be adapted to the needs of business entities. Enterprises that will cooperate with higher education institutions within the organization of dual education will certainly increase their image and rating among consumers as advanced enterprises that support progressive forms of education. Final Conclusions. Dual education is undoubtedly an advanced form of education.In order to consolidate the relationship between the subjects of the dual form of higher education in the legal field, it is necessary to develop standard agreements, which should clearly define the rights and obligations of the  parties.Among the advantages of dual education are the following: coordination of the content of work programs between the educational organization and employers; obtaining a set of competencies that meet the requirements of the modern economy in general and employers in particular; the possibility of mastering an individual set of additional competencies on the basis of a variable part of the educational program; training on modern material and technical base, which has production; the formation of clear and unambiguous descriptions of professional competencies of a particular profession; reduction of terms of adaptation of graduates on production
DIGITALIZATION AS A MODERN CONCEPT OF AVIATION DEVELOPMENT AND AUTOMATION
Authors: TRUBAI Y. , HANNOUF K.
Published: June 2023

Goal. The aim of the article is to define digitalization as the main concept of development of the aviation industry of the country, to increase the competitiveness of aircraft construction products in the conditions of the supra-industrial information age. Method. To solve this scientific problem used: structural method; comparative analysis; abstract-logical generalization. Results. The analysis and selection of digital solutions and cross-functional technologies at the stage of the life cycle of the aircraft, the relevance and need for further strengthening and implementation of information technology, which will determine the efficiency, quality of product life cycle management and contribute to cost optimization. Scientific novelty. The analysis and definition of digitalization of aircraft construction as a state - of - the - art concept of industry development in the conditions of supra - industrial information age is carried out. Practical significance. The main directions of digitalization of the industry are determined and substantiated and the possible advantages of the aviation enterprise are formed, which will help to increase the efficiency of the aviation industry and the national economy in the global space.
EMISSIONS OF HEAVY METALS IN THE SANITARY AREA OF INDUSTRIAL ENTERPRISES IN DNEPROPETROVSK
Authors: Zelenko Yu. V. , Haponova R. H. , Pustovarova T. M. , Belonozhko M. V.
Published: June 2023

The analysis of accumulation of heavy metals and their industrial concentrates in soils, water and plants is spent within the limits of sanitary zones of the large industrial plants ofDnepropetrovsk. The estimation to ecological conditions in residential areas is given.
THE DEFINITION OF SWITCHING TRACTION MOTORS QUALITY
Authors: Bezruchenko V. M. , Shapovalov A. V.
Published: June 2023

Influence of the change air clearance under additional pole on position of the centerline of the area of without sparks work are shown in article. The way of the forecasting of the position to centerline of the zone безіскрової work depending on deflections geometric parameter magnetic chain additional pole are offered.
The Determination of Factors That Affect on the Durability of Reinforced Concrete of the Contact Network
Authors: Kuznetsov V. H. , Poliakh O. M.
Published: June 2023

The authors determined the factors, which have impact on durability of contakt lines racks. The numeric characteristics of thicknesses of concrete racks are counted.
THE TECHNOLOGY IMPROVING OF FORMATION OF MULTI-GROUP STRUCTURES
Authors: Bobrovskkyi V. I. , Skovron I. Ya.
Published: June 2023

There was suggested the simulating model of the multi-group trains make up process. This model can be recommended for operative control of the station operation. This model allows to find the optimal method and scheme of the making up the specific train, considering the existing quantity of the tracks, and create the plan of the shunting operations.
RESEARCH ON POSSIBILITIES TO IMPROVE DIESEL LOCOMOTIVES’ MAINTENANCE SYSTEM
Authors: Bureika Gintautas
Published: June 2023

The analysis of failures of the locomotive’s units and parts is presented. The reliability indicators of these parts were determined according to the locomotive run. Numerical and distribution functions describing mileage (run) of the locomotives between overhauls were also defined. The dependence of the flow of failures on mileage distribution between overhauls was determined and the optimal mileage was calculated. Methods of determining mileage based on parametric and non-parametric reliability are presented. These methods help to reduce maintenance and repair costs as well as idle time of locomotives. They also help to increase reliability. The methods suggested in the paper were used in calculating optimal mileage (run) for the locomotives of the company ‘Lithuanian Railways’.
THE CHOICE OF THE OPTIMAL CHARACTERISTICS OF A BRAKE SYSTEM FOR FREIGHT WAGONS WITH AXLE LOAD OF 25 TONNES
Authors: Vodianikov Yu. Ya. , Makeieva Ye. H. , Safronov O. M.
Published: June 2023

Results of design researches of brake efficiency of the freight cars with an axial load 25 fon-force with various values of tare weight and a skid margin are cited. Nomographs for choice a gear ratio at change of a skid margin from 0 % up to 10 % are built. Analytical dependences for definition of a gear ratio of the freight car and design factor of brake shoe pressure force on wheels are received. It is shown, that the freight cars with tare weight 25 and 26 tonforce have the greatest brake efficiency.
THE STUDY OF THE WORK CONDITIONS OF THE BORDER CROSSING POINTS OF THE ODESSA RAILWAY
Authors: Levytskyi I. Yu.
Published: June 2023

There has been executed analysis of dynamics of the car flows which cross the boundary transitions points of the Odessarailway. There also have been offered the measures directed towards the development of its transit potential.
VEHICLES FOR REPAIR AND MAINTENANCE OF BRIDGE STRUCTURES
Authors: Kyslov O. H. , Buhaievskyi S. O. , Chuhuienko S. O.
Published: June 2023

The basic stages of bridge structure repairing and equipment necessary for the given works have been considered in this article.
THE ELECTRICITY RATIONING CONSUMPTION FOR OWN NEEDS OF POSTS PARTITIONING AND POINTS PARALLEL CONNECTION OF DC
Authors: Kuznetsov V. H. , Ivanov M. O. , Matusevych O. O.
Published: June 2023

The authors proposed the methods of determination of norms of electric power expenses on the own needs of sectionizing posts and direct-current parallel connection points.
THE SPECIFIC VOLUME DETERMINATION OF STATIC CONVERTERS OF THE TRACTION DRIVE WITH DC MOTORS FOR MANY SYSTEM OF ELECTRIC LOCOMOTIVES
Authors: Mukha A. M. , Kuznetsov O. V.
Published: June 2023

The issues of determination of specific volume of static converters for multisystem railway electric rolling stock are touched on in the article.
ABOUT THE INFLUENCE OF PARAMETERS OF HIGH-VOLTAGE CURRENT TRANSFORMER TO THE ACCURACY DEVICES COMPENSATE ITS ERRORS
Authors: Rudevych N. V.
Published: June 2023

In the article the influence of resistance of secondary winding of the high-voltage measuring current transformer on the error of device of its compensation is considered.
THE ESTABLISHMENT OF A RATIONAL SEQUENCE OF THE SPEED RESTRICTIONS ELIMINATION CAUSED BY THE RAILWAY STATUS
Authors: Kurhan M. B. , Mukhina N. A. , Chernyshova O. S.
Published: June 2023

The technique for establishment of rational sequence of elimination of restrictions on train traffic speed is offered.
THE MODELING OF RATIONAL NATURE MANAGEMENT RESEARCH STOCKS OF USEFUL COMPONENTS OF THE SAKI LAKE
Authors: Zelenko Yu. V. , Yatsenko L. F. , Popilnytskyi D. M.
Published: June 2023

There are elucidated considerable correlation relationships in a set of parameters, which are regularly observable at Saks’ke deposit, that allows obtaining most important factors and choosing the optimum and most economic scheme of monitoring, as well as developing the effective forecast model.
THE EVALUATION OF CHARACTERISTICS OF TRAFFIC FLOW IN THE MOST MAJOR CITIES WITH TAKING INTO ACCOUNT THE NETWORK PARKING
Authors: Hryhorov M. O. , Lobashov O. L. , Prasolenko O. V.
Published: June 2023

The approach to an estimation of characteristics of transport traffic streams in the largest cities is considered taking into account network modelling which contrary to existing ones allows expecting characteristics of the traffic with account of influence of transport stream intensity.
THE FORECASTING OF STATE PARAMETERS OF THE TRANSPORT SYSTEMS WITH REGARD TO EVOLUTIONARY PROCESSES
Authors: Hryhorov M. A. , Sanko Ya. V.
Published: June 2023

The considered regularities of determination of closed and opened state of system parameters on the basis of entropic characteristics and evolution processes in the environment allow predicting the duration of these periods with certain precision.
ANALYSIS OF METHODS FOR DETERMINING THE COST OF PASSENGER TRANSPORTATION IN THE FAR CONNECTION
Authors: Barash Yu. S. , Snachov M. P.
Published: June 2023

In the present work the analysis of procedures of determination of expenditures for passenger transportations in distant communication is conducted. The conditions of reaching the passenger tariffs to work without loss are studied.
ABOUT THE ROLE OF GOVERNMENT SPENDING IN THE PROCESSES OF FINANCIAL POLICY
Authors: Vlasiuk V. Ye.
Published: June 2023

The paper deals with the analyses of financial system conditions through the state expenses. The factors of the state regulation influence on forming the financial policy are analyzed.
THE USE EFFICIENCY OF FINANCIAL LEASING FOR THE RENEWAL OF FIXED CAPITAL OF THE RAILWAY INDUSTRY ENTERPRISES
Authors: Strilets V. I. , Minchenkova O. A. , Yurchenko H. A.
Published: June 2023

In the article the dynamics of development and global structure of the leasing market are analyzed, the advantages of using the financial leasing for upgrading the fixed capital of railway industry are formulated.
THE ANALYSIS OF STRUCTURAL CHANGES IN THE METAL TRAIN WHEELS DURING THEIR OPERATION
Authors: Vakulenko I. O. , Gryshchenko M. A.
Published: June 2023

Occurrence of destruction of a railroad wheel is caused by formation of the high local stresses produced by the inhomogeneous elastic-plastic deformation due to the cyclic temperature change during and after braking using brake shoes.
THE JUSTIFICATION OF THE LAYING SCHEMEOF CONCRETE SLEEPERS INSTEAD OF UNUSABLE WOOD
Authors: Kalenyk K. L.
Published: June 2023

In the given paper the possibility of occurrence of resonant effects in the rail structure was analyzed. Such phenomena impossibility is theoretically proved under existing structure of the rail track and the motion speeds of the rolling stock permitted by the UZ.
COMPARATIVE EVALUATION OF THE EFFECT OF MODERNIZATION ON THE STRESS-STRAIN STATE OF THE BOGIE LOCOMOTIVE VL60
Authors: Hrushchak I. M.
Published: June 2023

In the paper the results of stressed-and-strained state calculations of the fragment of bogie frame supporting structure in the manufacturer’s variant and modernized one are presented. It is demonstrated that the proposed variant of modernization leads to reduction of stresses of the most loaded unit.
THE PREREQUISITES, APPLICATION AND PROSPECTS FOR THE USE OF THE HARDENING METHOD OF ELASTIC AND PLASTIC DEFORMATION
Authors: Kartashev V. V.
Published: June 2023

The paper is devoted to development of advanced technologies, which allow choosing an optimum mode of hardening of the wagon cast parts by the method of elastic-plastic deformation.
THE WAYS TO IMPROVE THE EFFICIENCY OF THE ROLLING STOCK TECHNICAL DIAGNOSTICS
Authors: Tetter V. Yu. , Tetter A. Yu.
Published: June 2023

The necessity of use of diagnostic means of the rolling stock is proved. The examples of introduction are presented. The ways for increasing the reliability of diagnostics are offered.
THEORETICAL APPROACHES TO THE PROBLEM OF INCREASING TRANSPORT EFFICIENCY
Authors: Babenko S. O.
Published: June 2023

In the article the directions of decrease of the operational expenses and, as a result, the cost price of transportations due to reduction of a part of administrative expenses in cost prices of transportation of cargoes and passengers, the growth of labour productivity and the reduction of personnel contingent according to the volume of transportations are considered.
STATE REGULATION OF STRUCTURAL REFORMS IN RAILWAY TRANSPORT OF UKRAINE
Authors: Kopytko V. I.
Published: June 2023

Some state regulation aspects of structural reforms on the railway transport ofUkrainetaking into account the transition to the organization new model (creation of the vertically integrated management structure that must conform to the modern criteria of economic activity) are considered in this article. It is proved that the structure of reformed railway branch must function due to internal reserves, be less dependent on external risks that will help to take efficient management decisions. Taking into consideration the transport effect on the world economy, it is necessary to adapt the railway branch structure to more efficient system of management capable of using the available resources, attracting the investments, which will promote to improve competitiveness of the railway transportation.
THE MAIN PROSPECTS AND CONSEQUENCES OF UKRAINE'S ACCESSION TO THE INTERNATIONAL TRADE ORGANIZATION AND THE EUROPEAN UNION FOR THE TRANSPORT COMPLEX
Authors: Nykyforuk O. I.
Published: June 2023

The prospects and consequences of integration ofUkraineto the WTO and the EU for transport complex have been considered. The SWOT-analysis of economic after-effects after such an integration has been performed.
THE DIALECTIC SOFT MARKET OF TRANSPORTATION SERVICES OF LONG-DISTANCE PASSENGERS
Authors: Sementseva O. V.
Published: June 2023

The accordance of formation, functioning and development of market of services on suburban passenger transportations with main dialectics laws (inter-transition of quantitative changes to qualitative ones, unity and fight of oppositions, negation of negation) is investigated.
THE STRESS-STRAIN STATE OF ELASTIC HALF-SPACE LOADED BY UNIFORMLY DISTRIBUTED LOAD OVER THE AREA OF THE RECTANGLE AND THE INFINITE STRIP
Authors: Badalakha I. K.
Published: June 2023

The article shows the result of solving the problem on the stressed-and-strained state of an elastic semi-space because of the load action, which is uniformly distributed over the strip of constantly width and final or infinite length, with the use of non-traditional linear dependence of strains on the stressed state that differs from the generalized Hooke’s law.
SIMULATION OF RAIL DIRECTIONS WORK
Authors: Kozachenko D. M. , Mozolevych H. Ya. , Vlasiuk O. V.
Published: June 2023

The computer-aided simulation model is offered that can be used for the research of the railway traffic organization and also for the estimation of influence of the train parameters on the operation indices of railway lines and directions.
THE DEFINITION OF RATIONAL MODES OF UNCOUPLED CARS ROLLING DOWN FROM HUMPS
Authors: Kudriashov A. V.
Published: June 2023

Researches are executed and the method of choice of rational parameters of the mode of braking of guided cut in a group of three cuts with the set numbers of dividing switches is developed. The method is aimed at the solution of optimization task of modes of braking the rolling stock cuts.
THE INFORMATION APPROACH IN THE ASPECT OF A NEW EDUCATIONAL PARADIGM
Authors: Savchuk L. M. , Bandorina L. M. , Savchuk R. V.
Published: June 2023

The information approach to organization of educational process in higher education institutions, which on the basis of creation of uniform educational space allows improving the quality of training of specialists and their competitiveness at the labor market, is considered.
THE PREDICTION OF INTERMODAL CONTAINER TRAFFIC OPERATOR WITH USING THE THEORY OF FUZZY SETS
Authors: Shvets O. V.
Published: June 2023

The task of this article is to make a forecast of the container flow (which is being mastered by intermodal transport operator) in order to determine in future such moment when the purchase of new transport unit will be most cost-effective. Here the analysis of existing forecast methods and appropriate software products is done as well as the own methods for forecasting the containers flow of intermodal transport operator which use fuzzy sets theory and methods of non-linear programming are offered.
SOCIAL AND LABOUR ADAPTATION OF YOUTH IN THE CONDITIONS OF WORLD ECONOMIC CRISIS
Authors: Cherevko O. V. , Snachov M. P.
Published: June 2023

In this article the principal causes of youth unemployment on a labor market are investigated and some recommendations concerning the solution of this problem, which realization can improve social-and-labor adaptation of the youth in conditions of the world economic crisis, are offered.
THE PREDICTION OF THE TWO-AXLES DEVELOPMENT OF FREIGHT CAR TRUCK
Authors: Myamlin S. V. , Matsuk A. S.
Published: June 2023

The mathematical methods of calculation and analysis of patent fund enable estimation of progress of technical object trends. Using these methods, certain directions of development of biaxial bogie of freight carriage, in particular promising ones and directions, which exhausted the potential, are determined.
THE FORECASTING EFFORT CHANGES IN TRACTION ENERGY OF METRICS AT ANY SPEED LIMITS
Authors: Kurhan M. B. , Muhina N. A. , Chernyshova O. S.
Published: June 2023

The mathematical model for prediction of change of running time and mechanical work of the locomotive traction force at occurrence of restrictions of the train traffic speed is suggested.
PARTIAL THEORETICAL TASKS OF STIFFNESS WORK IN CAPACITIVE STRUCTURES
Authors: Bannikov D. O.
Published: June 2023

In the paper two special theoretical problems as for working of stiffening ribs in steel capacity structures for granular materials are presented. The first problem is devoted to determination of degree of joint work of the wall together with the rib; the second one – to optimization of external shape of the rib. Both the problems have important practical meaning because all the existing constructive schemes of steel capacity structures foresee the usage of stiffening ribs.
THE TECHNOLOGY OF SEMI-DRY CONCRETE FORMING FOR ELEMENTS OF HYDRAULIC STRUCTURES
Authors: Drapaliuk M. V.
Published: June 2023

In the paper main points of technology of semi-dry forming of the ferroconcrete articles of hydraulic engineering purposes are presented. The semi-dry forming of the modified concrete mixes enables to avoid the heat treatment of articles due to the activation effect development and the thermos soaking during 75 min.
THE FORMATION OF THE MODIFIED CONCRETE STRUCTURE FOR PIPE COLLECTORS
Authors: Pylypenko V. M.
Published: June 2023

In the article main points of developed technology of vibroimpact-pulse compaction of concrete mix for producing the pipes of sewage collectors are stated. It is shown that using the offered technology ensures the intensive growth of concrete strength at an initial period of hardening, the reduction of duration of heat treatment or its absolute avoidance, the manufacture of products with the stability and longevity of structures.
THE FLUCTUATIONS OF MULTI-TIERED AND MULTI-SPAN REGULAR FRAMES
Authors: Raspopov O. S. , Ruban O. O. , Chernyshenko S. O.
Published: June 2023

Exact analytical decisions are presented for free flexing vibrations of multiple-deck and multiple-bay regular frames taking into account inertia of rotation, shifts, and static longitudinal forces. Analogical results are obtained for the joint vibrations of multilayer intersecting beams modeling spatial frame carcasses with arbitrary quantity of spans in every direction.
FEATURES OF MAINTENANCE OF THE ROADWAY CEMENT CONCRETE DURING THE SUMMER BUILDING PERIOD
Authors: Rudenko M. M. , Doronina V. O.
Published: June 2023

In the article the analysis of efficiency of methods of maintenance of road concrete in a summer period of placing is presented. The technology of maintenance of fresh-placed road cement-concrete is related to the complex of measures aimed at obtaining the 28-day’s strength, which would be equal or exceeding the strength of concrete at hardening in normal moisturizing conditions. There are described the methods of curing the fresh-placed concrete with the use of different protective covers, the of which is of favorable temperature-moisture conditions for hardening of concrete and growth of strength, as well as obtaining of the and long-operable pavement.
Scientist, teacher, organizer of science and education ( To the 100th anniversary of the birth of academician Vsevolod A. Lazaryan)
Authors: Blokhin Ye. P.
Published: June 2023

The multifaceted activities Vsevolod Arutyunovich Lazaryan, the 100th anniversary of the birth of which we celebrate today, is highlighted in many bright sides. However, the most notable of these is that related to the role of a talented scientist and teacher, organizer of science and higher education, professors, demanding, attentive and caring teacher.
Bench for the determination of the forces moment of resistance to rotation of the truck relative to the body
Authors: Blokhin Ye. P. , Korotenko M. L. , Panasenko V. Ya. , Hranovskyi R. B. , Klymenko I. V. , Fedorov Ye. F.
Published: June 2023

In the article 2 variants of stand design for determination of the moment of resistance power to bogie rotation relative to body are described.
The results of strength tests of locomotive 2EL5
Authors: Blokhin Ye. P. , Kostritsa S. O. , Sultan A. V. , Dzychkovskyi Ye. M. , Krivichkov A. Ye. , Laushnik I. P.
Published: June 2023

In the paper the results of strength tests of electric locomotive 2EL5 are presented.
Electro-saving methods of driving trains in terms of the wholesale electricity market
Authors: Blokhin Ye. P. , Pshinko A. N. , Skalozub V. V.
Published: June 2023

The specified model of traction’s modes computation, which takes into account the cost of active and reactive energy in the conditions of application of variable tariffs for electric power payment of is developed.
Stress-strain state of the flat steel cord rubber of traction unit on the reel
Authors: Blokhin S. Ye. , Kolosov D. L. , Kolosov A. L.
Published: June 2023

The finite-element model for calculating the stress-deformed state of rubber-ropes conveyer’s belt on the drum is developed.
To the question of then cylindrical shells calculation with reinforcements and variable thickness
Authors: Brynza A. A.
Published: June 2023

In the article the calculations of cylindrical shells with reinforcements and variable thickness are considered. The use of method of solving the differential equations with variable factors offered by V. A. Lazaryan and S. I. Konashenko allows to shorten greatly the computing procedure but in a number of cases, having the big practical importance, to find the analytical decision.
The stability of motion according to V. A. the Lazaryan
Authors: Djomin Yu. V.
Published: June 2023

The background role of V. A. Lazaryan in formation of the theory of stability of motion of rail vehicles and itsfurther development in the scientific school of mechanical engineering he created is noted.
The numerical implementation of mathematical programming methods in optimal design of mechanical constructions
Authors: Kostrytsia S. A. , Tovt B. M.
Published: June 2023

In the article the question of numeral realization of methods of the mathematical programming is examined in the tasks of the optimum planning of mechanical constructions. On the base of method of gradient projections the method of numeral optimization of mechanical constructions is developed and approved. The analysis of convergence of optimization process is executed for different initial projects. The recommendation on the choice of initial projects during numeral optimization is given.
Quaternion matrix in nonlinear dynamics of high-speed transport systems
Authors: Kravets V. V. , Kravets V. V. , Kravets T. V.
Published: June 2023

The system of four quaternion matrices for presentation of main relationships of the theory of final rotation, kinematics and nonlinear dynamics of an asymmetric solid body in a three-dimensional space is presented. By means of application of equations in the form of Euler-Lagrange and the system of four quaternion matrices, the block-matrix model of nonlinear dynamics of a free asymmetric solid body in a three-dimensional space is built. The results obtained are approved. The offered algorithms are adapted directly to computing experiment.
Constructive and technological measures of increasing the reliability and lifetime of the cars wheel pairs
Authors: Senko V. I. , Chernin I. L. , Chernin R. I.
Published: June 2023

The disadvantages of assembling-demounting of joints with pull and checking of strength of heat on-pressings of wheel pairs are reflected, the data about developed new solutions on estimation of strength of transverse-pressed joints of bearing rings with axle necks and hydro-depressing of bearing rings are given.
The impact of the car body tilt when moving on curved track sections on the interaction between wheels and rails
Authors: Yakunin D. I. , Makarenko Yu. V. , Masliev V. G.
Published: June 2023

In the article the information on calculated forces of interaction in the system "wheel-rail" is presented at movement on curve sections of a track with a speed less than 160 km/h and the change of wear of wheels is predicted.
RESEARCH ON BENDING DAMAGE PROPRIETIES OF SANDWICH COMPOSITE L-JOINT WITH STIFFENER BY ABAQUS
Authors: Qiu Jiabo
Published: June 2023

For the damage proprieties of sandwich composite L-joint with stiffener under bending load, the Hashin failure criterion is used to predict the initial damage of L-joint, the principle of energy dissipation based on damage and material linear softening process is used to predict the stiffness degradation of L-joint, and the cohesive element based on traction and separation model is used to simulate damage of the interface layer. First, the finite element model (FEM) is established by Abaqus, whose rationality is verified by comparing the FEM results with the test results in other literature. Second, the influence of skin's thickness and chamfer radius at the intersection on the bending capacity is studied based on FEM. The results showed that increasing the chamfer radius is the best way to improve the joints' stiffness, and thickening the skin at the intersection is the best way to improve the bearing capacity of the joint.
SOLVING HIGH-DIMENSIONAL INVERSE PROBLEMS WITH AUXILIARY UNCERTAINTY VIA OPERATOR LEARNING WITH LIMITED DATA
Authors: Hart Joseph , Gulian Mamikon , Manickam I. , Swiler Laura P.
Published: June 2023

In complex large-scale systems such as climate, important effects are caused by a combination of confounding processes that are not fully observable. The identification of sources from observations of the system state is vital for attribution and prediction, which inform critical policy decisions. The difficulty of these types of inverse problems lies in the inability to isolate sources and the cost of simulating computational models. Surrogate models may enable the many-query algorithms required for source identification, but data challenges arise from high dimensionality of the state and source, limited ensembles of costly model simulations to train a surrogate model, and few and potentially noisy state observations for inversion due to measurement limitations. The influence of auxiliary processes adds an additional layer of uncertainty that further confounds source identification. We introduce a framework based on (1) calibrating deep neural network surrogates to the flow maps provided by an ensemble of simulations obtained by varying sources, and (2) using these surrogates in a Bayesian framework to identify sources from observations via optimization. Focusing on an atmospheric dispersion exemplar, we find that the expressive and computationally efficient nature of the deep neural network operator surrogates in appropriately reduced dimension allows for source identification with uncertainty quantification using limited data. Introducing a variable wind field as an auxiliary process, we find that a Bayesian approximation error approach is essential for reliable source inversion when uncertainty due to wind stresses the algorithm.
Phase evolution and burnability of cement raw meal
Authors: Aguirre Castillo José , Broström Markus , Eriksson Matias
Published: June 2023

The use of high-temperature X-ray diffraction (HT-XRD) to study the mass transfer of raw meal constituents towards forming clinker phases and the occurrence of free lime (calcium oxide), also known as burnability, was assessed. A measuring strategy with temperature ranging from 1000°C to 1450°C was developed and compared with a conventional burnability method. The free lime determined by the methods showed that HT-XRD produced good results for the evaluation of burnability. In addition, HT-XRD revealed the formation of intermediate phases, providing insight into early reactions in a cement kiln. The particle size of quartz was found to affect crystal expansion of the phase at a high temperature, subsequently affecting the formation of silica polymorphs. The different raw meals used in this study also indicate that the formation of different silica polymorphs affects the formation of C2S. The lack of knowledge regarding the influence of β-quartz on the reduction of free lime is highlighted.
A new, fast method for solving finite-element equations iteratively based on Gauss–Seidel
Authors: Haleem Baher A. , El Aghoury Ihab M. , Tork Bahaa S. , El-Arabaty Hisham A.
Published: June 2023

Solving large equation systems is the most time-consuming part of finite-element modelling – iterative techniques are favoured for models with numerous degrees of freedom where direct techniques have high storage requirements. Classical iterative techniques such as Gauss–Seidel (GS) are robust due to guaranteed convergence and algorithmic simplicity. Performance of iterative techniques chiefly depends on system scale and stiffness matrix properties – which are influenced by structural configuration. However, it is possible to adjust an iterative algorithm such that its speed is greatly enhanced for a certain class of structural configurations. This paper presents an adjusted GS solver, ‘constrained Gauss–Seidel’ (CGS), which has been formulated to solve typical multi-storey structures with an enhanced speed. The innovation in CGS originates from the adoption of a diaphragmatic relaxation mechanism that results in dividing equations into two groups to optimally deal with the different unknown types. In this paper, the concept and algorithm of the newly developed CGS method are elucidated. Then, 16 practical examples are solved to assess the solving speed of CGS against other iterative methods – GS and modified Gauss–Seidel (MGS, MGS*). The convergence speed of CGS attained 33 times, 3.7 times and 2 times those of GS, MGS and MGS*, respectively.
SAĞLIK HİZMETLERİNDE İNOVATİF LİDERLİK VE YÖNETİM YETENEĞİNİN HASTANE PERFORMANSINA ETKİSİNDE İŞE BAĞLILIĞIN ARACILIK ROLÜ
Authors: GÜVENER Hakan
Published: June 2023

Bu araştırmada inovatif liderlik, yönetim yeteneği ve işe bağlılığın hastane performansına etkisinin olup olmadığının belirlenmesi amaçlanmıştır. Çeşitli sektörlerde bu kavramları ayrı ayrı ele alan araştırmalar mevcut olmasına rağmen özellikle sağlık hizmetlerinde inovatif liderlik, yönetim yeteneği, işe bağlılık ve hastane performansının birbirleri ile etkileşimi üzerine çok az sayıda çalışma bulunmaktadır. Araştırmanın evrenini Gaziantep ilinde kamu ve özel sağlık kuruluşlarında görev yapan sağlık çalışanları oluşturmaktadır. Rastlantısal örnekleme metotlarından basit rastgele örnekleme yöntemi ile anket uygulamasından yararlanılarak 281 sağlık çalışanından veri elde edilmiştir. Sağlık hizmetleri sektöründe yapılan bu çalışmada inovatif liderliğin ve yönetim yeteneğinin hem işe bağlılığa hem de hastane performansına pozitif etki ettiği tespit edilmiştir. Ayrıca işe bağlılığın hastane performansını olumlu düzeyde etkilediği görülmüştür. Araştırmada inovatif liderlik ve yönetim yeteneğinin hastane performansına etkisinde işe bağlılığın kısmi aracılık rolünün olduğu tespit edilmiştir. Sağlık kuruluşlarının performansının artırılmasında, inovatif liderlik, yönetim yeteneği ve işe bağlılık etkili olabilir. Gelecekte araştırmacıların bu çalışmada kullanılan değişkenlere başka boyutların (örneğin örgütsel bağlılık, kolektif etkinlik, ekiplerde rekabet düzeyi) etkisinin olup olmadığının araştırılmasının literatüre katkı sağlayacağı düşünülmektedir.
РЕГИСТРАЦИЯ И ОХРАНА ПРАВ НА НАУЧНЫЕ ОТКРЫТИЯ
Authors: ОМОРОВ Роман Оморович
Published: June 2023

В статье, подготовленной на основе доклада автора, представленного на III Международной научно-практической конференции «АВТОР/AUTHOR-2023» в Москве на базе кафедры ЮНЕСКО НИУ ВШЭ, рассматриваются вопросы, связанные с регистрацией научных открытий и правами на них. Несмотря на то что в Конвенции, учреждающей Всемирную организацию интеллектуальной собственности (ВОИС) и заключенной в Стокгольме 14 июля 1967 г., сказано, что научные открытия входят в число объектов интеллектуальной собственности [статья 2 [viii], подпункт (4)], вопрос регистрации и правовой охраны научных открытий до настоящего времени является открытым. Как определяет ВОИС, научные открытия не могут быть отнесены ни к объектам авторского права, ни объектам патентного права. Но очевидно, что научные открытия объективно существуют и они очень важны для научного познания природы и общества, поэтому необходимо исследовать историю вопроса, различные подходы в части правовой охраны научных открытий. На основе анализа истории вопроса и существующих подходов к его решению в части регистрации и правовой охраны научных открытий предложена авторская концепция охраны научных открытий.
ОСОБЕННОСТИ ПРОВЕДЕНИЯ ПАТЕНТНЫХ ИССЛЕДОВАНИЙ В СООТВЕТСТВИИ С НОВЫМ НАЦИОНАЛЬНЫМ СТАНДАРТОМ ГОСТ Р 15.011 2022
Authors: ЧУГУНОВА Марина Михайловна , ПЕТУНИН Артем Михайлович
Published: June 2023

С 1 июня 2023 г. на территории РФ вводится в действие обновленная редакция национального стандарта ГОСТ Р 15.011 «Патентные исследования. Содержание и порядок проведения», устанавливающего требования к процессу проведения исследовательской работы в сфере интеллектуальной собственности (согласно Приказу Росстандарта  № 1080-ст от 07.10.2022 предоставлено право досрочного применения указанной редакции). Целью статьи стало изучение преимуществ, открывающихся у пользователей стандарта ввиду его актуализации. В статье отражены предпосылки переработки нормативного документа, вызванные сложностями работы с предыдущей редакцией ГОСТ Р 15.011–96, и разобраны основные изменения. Показано, что в новом стандарте четко разделены роли заказчика патентных исследований (ПИ), исполнителя работ (например, разработчика объекта техники) и ответственного за ПИ (патентного отдела, специализированной юридической компании или самостоятельного патентного поверенного), а также определены требования к квалификации последнего. Выявлены достоинства наличия в документе закрытого перечня видов ПИ (ПИ на уровень техники, ПИ на патентоспособность, ПИ на патентную чистоту, целевые ПИ), их взаимосвязь с этапами разработки и рекомендации по содержанию указанных видов исследований. Дополнительно рассмотрены возникшие терминологические трудности, особенности патентных исследований для программных продуктов и нормативных документов, роль патентных ландшафтов и исследований технического уровня в рамках ПИ на уровень техники. Исследованы особенности проведения ПИ в контексте цифровой трансформации, проанализирована их роль в системе управления интеллектуальной собственностью на предприятии. Показано, что корректное использование ГОСТ Р 15.011–2022 позволит значительно упростить взаимодействие заказчика и исполнителей, снизит трудозатраты, повысит качество проводимых исследований и предсказуемость его содержания.