bluuebunny/crossref_metadata_2025 huggingface dataset:
OBVIOUS AND HIDDEN SIGNS OF INCREASING CRISIS PHENOMENA IN THE STATE: PROBLEMS OF MANAGEMENT AND PERSONNEL OF ADMINISTRATIVE-TERRITORIAL REFORM
Authors: ANDRUSHKIV B. , GOLOVKOVA L. , KYRYCH N. , POHAJDAK O. , HAHALIUK O.
Published: June 2023

The purpose. The work is devoted to the identification and development of recommendations for their prevention of overt and covert signs of intensification of the crisis in Ukraine. The results. As a result of the analysis of the socio-economic situation in the country, obvious and hidden signs of intensification of crisis phenomena in Ukraine were revealed as a result of imperfect management and ignoring of personnel policy. The place and role of public scientific academic formations in the management of the state and local self-government bodies in the process of decentralization of state-administrative functions in the conditions of administrative-territorial reform were determined. A set of unresolved issues affecting the completion of an effective institutional territorial system capable of ensuring effective interaction between the state, local governments and business, based on clearly established rules and norms of their self-regulation. The most important factors for establishing partnerships between the state, local governments and business in the field of resource efficiency have been identified. Scientific novelty lies in the coverage of the activities and role of scientific academic public and state management structures in the formation of state personnel policy and the development of the ideology of local democratic self-government. It is established that the basis of relations between the state, local governments and business entities is the recognition of equality and independence of each of the participants. Based on the studied current state, the role of personnel policy in stabilizing the economy is determined. It is proposed to create mechanisms of interaction and business partnership in the conditions of formation of voluntary associations of territorial communities. The main goal of the reforms is highlighted, namely: strengthening cooperation between the state, local governments and businesses, which will clearly increase the welfare of the population and increase income and profits in society. Practical significance lies in the wide possibilities of using the results of the study in management and economic activity. It is known that the main task of today is the selection and placement of personnel, identifying the main areas of improvement, which allows managers to open new opportunities in the most popular and promising segmental economic niches that can stimulate economic development and involve the public and science.
ESSENTIAL CHARACTERISTICS OF CONCEPTUALIZATION OF MODERN VIEWS ON THE DEFINITION ECONOMIC SECURITY OF ENTERPRISES
Authors: VIVCHAR O.
Published: June 2023

The purpose. The purpose of the article is to substantiate the essential characteristics of economic security of enterprises, as well as the formation of the main criteria for assessing its reliability and efficiency in modern transformational conditions. Methods. To solve this scientific problem used: structural method; comparative analysis of empirical data; abstract-logical generalization. The Results. A comprehensive study of the essential and substantive characteristics of economic security enterprises. Scientific novelty. The author’s vision of the scientific definition of economic security enterprises is offered, which, in contrast to the existing ones, allowed to identify the preventive nature with the selection of criteria for assessing its reliability and efficiency in modern conditions. The practical significance. The main provisions of the scientific article will provide an opportunity to apply in practice the indicators of effectiveness the economic security of enterprises.
AIR POLLUTION FROM THE PHOSPHORUS COMBUSTION
Authors: Biliaiev M. M. , Shakina O. P. , Shmihel O. Yu.
Published: June 2023

The 3D numerical model to simulate the toxic gas dispersion during phosphor firing.The model is based on the K-gradient transport model. The results of numerical experiment are presented.
ADVANCED DESIGN OF THE REALIGNMENT PLAN FOR THE HIGH SPEED TRAINS IN THE RWPLAN 1.3.4 PROGRAM
Authors: Korzhenevych I. P.
Published: June 2023

The opportunity of increase of speed of trains is considered due to a reorganization of the plan in borders of an existing earthbed.
THE INFLUENCE OF SPEED LIMITS ON THE ENERGY PERFORMANCE OF TRAINS
Authors: Kurgan M. B. , Markova O. S.
Published: June 2023

The technique and results of researches of efficiency of elimination of speed limitations of train movements are explained
THE ERROR OF THE APPROXIMATE SOLUTION OF THE FIRST BOUNDARY-VALUE PROBLEM WITH AN APPROXIMATION OF THE SECOND DERIVATIVE OF THE LINEAR SPLINE
Authors: Laguta V. V.
Published: June 2023

The error of the decision of the first boundery problem for the ordinary differential equation of the second order with a nonlinear right part is defined. The second derivative of defined function is approximated by a linear spline.
THE STRENGTH RESEARCH OF THE COUPLER PARTS DURING THE EXPLOITATION DOWNLOADING
Authors: Kuzmin O. B. , Kossov V. S. , Protopopov O. L. , Krasiukov M. F. , Bunin B. B. , Ohanian E. S.
Published: June 2023

One of the most frequent failures of the coupling mechanism СА-3 is the coupler body damage. In this article the investigation of the stress-strain state of the coupling mechanism under service loads is fulfilled, the areas are detected were formation and growth of the fatigue cracks is possible and assessments of the coupler durability considering its survivability are obtained.
ABOUT THE ELECTROMAGNETIC COMPATIBILITY OF ELECTRICAL EQUIPMENT OF PASSENGER CARS
Authors: Raspopin V. R. , Shapoval O. V. , Snitko L. Yu. , Ihnatov H. S. , Vyslohuzov V. T.
Published: June 2023

The question of electromagnetic compatibility with signaling and communication devices of the electric equipment of domestic production coaches is surveyed; the problems rising before domestic rail car manufacturer in connection with providing of accomplishment of the normative documentation requirements on electromagnetic compatibility for the purpose of traffic safety rising of the rail rolling stock and providing the passengers safety during passenger traffic are stated.
THE ANALYSIS OF INFLUENCING FACTORS OF THE ADHESION STRENGTH OF POLYMER COMPOSITIONS WITH CONCRETE
Authors: Pshinko O. M. , Krasniuk O. V. , Savin L. S. , Palii V. V.
Published: June 2023

In article is brought analysis factor influencing upon toughness of the traction polymeric composition with concrete. The Described mechanism of the traction polymeric composition with concrete and level on traction different factor.
THE ASPECTS OF SUSTAINABLE ECOLOGICAL AND ECONOMIC DEVELOPMENT OF THE REGION
Authors: Savin Yu. L. , Prykhodko O. P. , Savin L. S. , Skrypchenko M. M.
Published: June 2023

Main aspects firm ecological-economic development of the region is described in article. Brought main ecological problems, reasons of their origin. Stated possible ways of the decision existing ecological problems of the region.
THE NECESSITY OF THE INFLUENCE OF LONGITUDINAL FORCES ACCOUNTING, ARISING IN THE DOUBLE-HINGED CONCRETE ARCH DURING THE POWER IMPACTS
Authors: Tatarinov O. F.
Published: June 2023

The basis of calculation of flexibility of steel-concrete building elements is offered on the example of archs of continual cross-section. The numerical calculations, confirming the necessity of calculation of flexibility characteristics while calculating elements of small cross-section.
THE DEVELOPMENT ANALYSIS OF SOCIAL PARTNERSHIP IN UKRAINE
Authors: Vasyliuk S. V.
Published: June 2023

Work is devoted to development of social partnership at production level that stabilizations socially of labour relations on the enterprise. Attention is accented on that for dynamic development of social partnership a human capital is a base.
THE MARKETING RESEARCH PROBLEMS OF THE SALES COMPANY FORECASTING
Authors: Hertsyk V. A.
Published: June 2023

The author considers the principal methods, both qualitative and quantitative ones, as well as simulation in forecasting product sales. The author suggests a system simulation method, which will enable to obtain indexes complementing each other and will ensure all-round investigations into the phenomenon on the well-grounded basis.
THE ANALYSIS OF FINANCIAL AND ECONOMIC ACTIVITY OF EDUCATIONAL INSTITUTIONS
Authors: Kovtun O. O.
Published: June 2023

Educational activity is the most specific industry of national economy which the distinguishing features are characteristic for. Consequently, for the analysis of financial activity of state higher educational establishment it is necessary to use the method of analysis, which would take into account the mechanism of functioning and management by high school, financial resources of institutes of higher different on the nature, and also variety of types of activity.
THE METHODOLOGICAL ISSUES OF SUPPORT MANAGEMENT DECISIONS IN INTERNATIONAL MARKETING MANAGEMENT OF AVIATION ENTERPRISE
Authors: Solopenko T. R.
Published: June 2023

The questions of economic ground of administrative decisions are affected, related from by the Marketing management of aviation enterprise, methods are examined economic of administrative decisions, and utilizinga mathematical design for constructions of optimization models and their realization automated control the system «Marketing of aviation enterprise» on a base automated control the system (TO THE ACE) by an aviation enterprise.
USING THE INFORMATION OF ON-BOARD DIAGNOSTIC SYSTEMS IN DETERMINING THE TECHNICAL STATE OF THE LOCOMOTIVE
Authors: Bodnar B. Ye. , Varchenko V. K. , Ochkasov O. B. , Gryshchenko M. A.
Published: June 2023

The issues of increase of efficiency of information processing by оn-board systems of diagnostics of locomotives are considered. The examples of information processing by the on-board system of diagnostics of electric locomotives ДЕ1 are presented. The suggestions on improvement of systematization and processing of information by on-board systems of diagnostics are given.
THE EFFECTIVENESS EVALUATION OF SMOOTHING FILTERS TRACTION SUBSTATIONS DC
Authors: Sychenko V. H. , Zubenko V. A.
Published: June 2023

In this article the results of experimental estimation of functioning efficiency of the passive ripple filters of traction d.c. substations are presented.
A SPECIAL CONTROL SYSTEM FOR CONTROLLING THE POSITION OF THE PATH IN THE PLAN
Authors: Korzhenevych I. P.
Published: June 2023

The special bench mark system for increasing the accuracy of survey of railway track plan is examined.
THE FEATURES OF TRAVELER WITH VACUUM AND SUCTION EQUIPMENT
Authors: Moroz H. L. , Kuklev M. O. , Tovt B. M.
Published: June 2023

The analysis of real mechanical system of the bridge crane with vacuum-sucker equipment is made and the design scheme for the mathematical model of dynamic processes created on the basis of the analysis is offered.
THE FEATURES OF DIFFERENT BRANDS USE AND TYPES OF VEHICLES FOR INTERCITY FREIGHT TRANSPORTATION
Authors: Horyainov O. M. , Fedorova T. F.
Published: June 2023

A regression model of determination of maintenance cost in dependence on technical-economic and technicaloperational parameters of vehicles in interurban freight transportations is suggested.
THE ROUTE DETERMINATION OF FILING A TAXI TO THE CUSTOMER IN TERMS OF FUNCTIONING OF THE AUTOMATED CONTROL SYSTEM
Authors: Davidich Yu. O. , Ponkratov D. P.
Published: June 2023

The issues of overall performance increase of taxi transport due to improvement of automated system of dispatching management by its technological processes are considered. The route of taxi submission to a customer is offered to be determined by a criterion of minimum time. To solve the given task the taxi submission route determination technique is developed. It will promote the reduction of passengers’ waiting time and the decrease in operational expenses of a carrier.
THE STUDY OF THE ROAD TRANSPORT IN THE LOGISTICS CHAIN
Authors: Dolia V. K. , Kharchenko V. F. , Roslavtsev D. M.
Published: June 2023

In the article an issue of efficiency of operation of a car transport in a logistic chain is considered. On the basis of constructed mathematical model of the logistic chain functioning a number of studies re. influence of the features of a transport participant (on example of a car transport) on efficiency of operation of other participants and the chain as a whole is carried out.
TECHNOLOGICAL FEATURES OF THE CREATION AND USE OF THE SECTORAL ELECTRIC COMMERCE
Authors: Perov V. O. , Vakulenko A. S. , Yakunin O. K.
Published: June 2023

This article is devoted to a question of introduction and use of electronic system of carrying out of competitions. The stages of conducting a competition are considered, the drawbacks of conducting competitions by hand are defined and the main features of creating a system for automation of process of carrying out competitions are outlined in this article.
EXPERIENCE OF INTRODUCTION OF THE AUTOMATED SYSTEM "NAVIGATION AND MANAGEMENT" ON THE BASIS OF SATELLITE NAVIGATION AND ITS INTERACTION WITH SINGLE AUTOMATED CONTROL SYSTEM OF "UKRZALIZNYTSIA" FREIGHT TRANSPORTATION IN THE CONDITIONS OF THE TEST SITE SOUT
Authors: Titov M. M. , Borushko Yu. M. , Semenov S. B. , Liashenko Ye. V.
Published: June 2023

The issues of use of satellite technology on railway transport are considered upon the results of testing the specimen of computer-aided system «Navigation and Control» at the test proving ground of Pivdenna Railway.
MANAGEMENT OF TRAFFIC FLOW ON A CONVEYOR TRANSPORT
Authors: Tkachev V. V. , Protsenko S. M.
Published: June 2023

The analysis of control capability of the freight traffic volumes in coal mines, which use storage bunkers for averaging a flow from the mining sections, is carried out on the basis of imitation model of conveyor network with the use of predistribution of conveyor space, on the base of equipment SAUKL for the purpose of stabilizing the freight traffic volume and avoiding the losses during transportation.
THE MODELING OF OPTIMAL LONG HAUL ON THE MUNICIPAL PASSENGER TRANSPORT ROUTES WITH TAKING INTO ACCOUNT THE HUMAN FACTOR
Authors: Shutenko L. M. , Yermak E. M.
Published: June 2023

The model of determining optimum leg length on municipal public transport routes is examined. The results of modeling leg length taking into account the changes in value of passenger traffic volume and pedestrian movement cost are presented.
MATHEMATICAL MODELING OF THE PROCESS OF CRYSTALLIZATION CORES TURNOUTS IN THE TWO CASTING FORM
Authors: Smirnov B. M. , Plitchenko S. O.
Published: June 2023

The mathematical model of the temperature field of the «Casting» system is presented in the article. «Casting» as a two-layer foundry form is supposed to estimate the character of propagation of crystallization front along the casting section and to define the parameters of the casting form, which will provide the most favorable thermal conditions of the core structure formation.
THE CONTROL MECHANISM OF PASSENGER CARS PARKS
Authors: Karas O. O.
Published: June 2023

In the article the technique of calculation of wagon stocks taking into account their writing off, renovating, taking off for economic needs and implementing the structural reform is presented.
THE DETERMINATION OF THE PARAMETERS OF THE NOMINAL MODE OF PASSENGER LOCOMOTIVES FOR THE RAILWAYS OF UKRAINE
Authors: Hetman H. K. , Arpul S. V.
Published: June 2023

The basic results of determination of rational parameters of the nominal regime of passenger electric locomotives with an asynchronous hauling drive for railways of Ukraine are presented.
THE ADEQUACY OF MATHEMATICAL MODELS FOR DETERMINATION OF THE PERFORMANCE OF THE WORK STATION
Authors: Korobyova R. H.
Published: June 2023

Different estimation methods of technical and technological parameters of railway stations are considered. Results of the parameters comparison obtained on the basis of the station work graph and simulation with functioning parameters of a real station are presented.
THE COMPENSATION OF ELECTRIC RUBBED WITH THE MUTUAL LOAD OF THE TRACTION ELECTRIC MACHINES ACCORDING TO THE HOPKINSON''S SCHEME
Authors: Afanasov A. M.
Published: June 2023

The conditions of compensation of electric losses at the test of hauling electric engines by the Hopkinson’s scheme are considered.
STRUCTURAL RELIABILITY OF TRACTION INVERTER FOR MULTI-SYSTEM ELECTRIC LOCOMOTIVE WITH ASYNCHRONOUS TRACTION MOTORS
Authors: Muha A. M.
Published: June 2023

In the article the structural reliability of different variants of structured schemes of the steady-state converter for traction drive of promising multi-system electric locomotives with asynchronous traction engines is compared.
INTELLIGENT DIAGNOSTIC SYSTEM OF EMERGENCY SITUATIONS IN TRACTION SUBSTATIONS DC
Authors: Nasyrov Sh. N.
Published: June 2023

In the article the architecture and algorithm of operating an expert system providing the efficiency of functioning the electric equipment for traction substation as well as the four-parameter belonging function are determined.
THE STUDY OF THE INFLUENCE OF SURFACTANTS ON THE PROPERTIES OF THE INSULATING MATERIAL, STABILIZED WITH SLAG MANGANESE METAL
Authors: Pshinko O. M. , Savytskyi M. V. , Honcharenko A. O.
Published: June 2023

In this article the conceptual approach to the organization of production and the technology of obtaining a thermoisolative material is presented. Advantages of the new thermo-isolative material as compared to other existing ones are considered too.
THE INTERACTION FORMS BUCKLING OF COMPRESSED THIN-WALLED CHANNEL WITH PRIOR LOCAL SWELLING
Authors: Raksha S. V.
Published: June 2023

The coupled instability of thin-walled columns with a preliminary local buckling is considered taking into account the overall initial imperfection, eccentricity of the compression force application and interaction of overall and local buckling modes.
THE USE OF DISCRIMINANT ANALYSIS IN THE FIELD OF SHIP NAVIGATION
Authors: Semenchuk E. L.
Published: June 2023

The technique of discriminant analysis on an example of the state Ukrainian shipping companies by dividing them on separate groups taking into account the strategic priorities is considered.
THE OVERALL APPROACH TO THE OPTIMIZATION OF THE PRODUCTION TECHNOLOGY OF SHEET BLANKS
Authors: Moroz M. M. , Drahobetskyi V. V. , Markevych A. H.
Published: June 2023

The technological process of cutting the sheet metal as a set of technological processes divided on subsets is considered. The classification of technological processes of preparation production and the criterion of optimality with the search purpose of optimum technological process of producing the sheet bars are offered.
THE INFLUENCE OF THE SHAPE OF THE INGOT AND THE VACUUM ON THE SULPHUR CONTENT IN WHEEL STEEL KP-2
Authors: Shapovalova O. M. , Deineha A. V.
Published: June 2023

From positions of thermodynamics the conditions of formation of sulfides in the steels are described. The regularity of sulfur distribution of in the industrial vacuumized bars from the wheel steel of mark КП-2 is first elucidated. The chemical composition of non-metal inclusions in the wheel steel produced according to different technologies is determined.
THE DEVELOPMENT OF TECHNOLOGICAL METHODS OF LASER SURFACE TREATMENT OF HEAVILY LOADED PARTS WHEEL SET CARS
Authors: Sheliahin V. D. , Khaskin V. Yu. , Nikulin O. T. , Bernatskyi A. V. , Siora O. V.
Published: June 2023

Possibility of application of processes of laser superficial processing for restoration and increase of a resource of operation of shafts and rims of wheels of railway cars is investigated. The influence of critical parametres of process on depth of a zone of laser influence and their interrelation with the structure obtained and hardness is determineed.
THE PROBLEM OF GENERATING OPTIMAL CAPITAL STRUCTURE OF AIR TRANSPORT ENTERPRISES IN CONDITIONS OF LIQUIDITY CRISIS
Authors: Asanina A. V. , Bohushko O. M.
Published: June 2023

Tendencies of forming the capital structure of enterprises in conditions of the liquidity crisis are analyzed in the article. The basic tendencies of forming the capital structure, which characterize aviation transport enterprises, are determined. The necessity of using the loan capital and its peculiarities are also investigated.
THE MAIN TRENDS IN THE BORROWED CAPITAL FORMATION OF AIRLINES COMPANY IN UKRAINE
Authors: Bohushko O. M.
Published: June 2023

Tendencies of forming the debt capital of Ukraine airlines were analyzed in the article. The major sources of forming the debt capital in aviation were also covered.
THE STUDY OF THE EXPENSES STRUCTURE ON THE MAINTENANCE OF RAILWAYS INFRASTRUCTURE
Authors: Mishchenko M. I.
Published: June 2023

The structure of railway transport expenses is investigated over studied the infrastructure objects as a factor influencing upon their values.
WORLD EXPERIENCE AND FEATURES ELECTRIFICATION OF RAILWAYS IN UKRAINE
Authors: Polishko T. V.
Published: June 2023

The history of development of electrification of railways in the world, Russia and Ukraine is considered. The specific amount of transportations on electrified lines is presented. The main ideas of determination of economic efficiency for electrification of railways are substantiated.
THE WAYS OF WORKERS IMPROVING MOTIVATION IN RAILWAY TRANSPORT
Authors: Snachov M. P. , Pashniuk O. O.
Published: June 2023

The work is devoted to exploration of the problem of labor motivation on the railway transport of Ukraine, and the recommendations concerning the improvement of material and non-material means of strengthening the motivation in the modern society are offered.
ECONOMIC EVALUATION OF INTERVENTIONS TO IMPROVE THE SAFE MOVEMENT OF TRAINS
Authors: Shevchenko V. V. , Hnennyi O. M.
Published: June 2023

The methodical approach to an estimation of direct effect from investments into actions on increase of train traffic safety, which is defined as reduction of the risk level connected with train operation, due to the introduction of actions is developed. The risk level is defined on the basis of modelling density of distribution of quantity of transport accidents by their types during the year and an estimation of expectations of harm levels (economic, social, ecological) from each type of transport accidents. The method of definition of an economic evaluation of social aftermaths of a transport accident is offered.
THE INTERACTION BETWEEN SUBSYSTEMS OF FLEXIBLE ASYNCHRONOUS THREAD REPAIR CARS, FORMALIZED IN THE FORM OF AGGREGATIVE SYSTEM
Authors: Myamlin V. V.
Published: June 2023

Negative aspects of traditional production-and-conveyer lines for wagon repair are shown. Advantages of a new type of wagon-repair flow – asynchronous flexible one – are considered. An aggregative system is suggested as a mathematical model of functioning of the asynchronous flexible flow. Peculiarities of interaction between aggregative subsystems are demonstrated.
ELECTROMECHANICAL PRINCIPLES OF MUTUAL LOADED ELECTRICAL DC MACHINES
Authors: Afanasov A. M.
Published: June 2023

The possible variants of providing the mutual loading of electric machines of direct current are considered on principle.
ABNORMAL AND TRANSIENT MODES OF THE CONVERTER BOOSTER TYPE FOR DC TRACTION SUBSTATIONS
Authors: Goncharov Yu. P. , Zamaruev V. V. , Ivahno V. V. , Panasenko N. V. , Bozhko V. V. , Andryenko P. D. , Lahuta I. I.
Published: June 2023

The results of analytical research and computer design of the anomalous, steady-state and transitional modes related to the resonance in the input filter of voltage added converter based on IGBT with the PWM are presented. The ways of resonance removal by both the control means and the power blocks, combined with the overvoltage protection, are offered.
COMPONENTS OF ENERGY LOSSES IN THE ELEMENTS OF POWER SUPPLY SYSTEMS
Authors: Krasovskyi P. Yu.
Published: June 2023

The analysis of the basic components of electric power losses in elements of the power supply system is carried out and their classification is proposed.
FEASIBILITY STUDY FOR REPAIR OF EQUIPMENT
Authors: Kramar I. Ye. , Yakovliev S. O.
Published: June 2023

In this work the authors have conducted an analysis of the state of equipment of our enterprises. It is shown that in conditions of shortage of investments and disintegration of machine-building industry not the repair as proven mean of renewal of funds but the purchase of new equipment remains expedient and advantageous.
The dynamic interaction of the moving contacting surfaces at the example of the electric rolling stock current collector
Authors: Babiak M. O. , Kulichenko A. Ya.
Published: June 2023

The process of mutual moving and contacting of surfaces of current collecting pantograph elements and contact network is considered taking into account the particularities of inf1uence of speed and acceleration parameters, determination of which will allow to forecast mathematically the wear-out degree of contacting elements.
The development of mathematical models of the dynamics of trains in the writings of Yves. A. Lazaryan and his disciples
Authors: Blokhin Ye. P. , Manashki L. A.
Published: June 2023

The review of mathematical models of train dynamics.
Analysis of the factors that reduce the locomotives roadhold
Authors: Horbunov N. I. , Kravchenko Ye. O. , Kovtanets M. V.
Published: June 2023

Factors, reducing hauling-coupling qualities of locomotive, are analyzed in the article. A mathematical model for evaluation of influence of redistribution of loadings on the coefficient of use of coupling weight of locomotive from wheel pairs on rail is presented.
The search for the optimal parameters of the spring suspension trucks passenger cars
Authors: Myamlin S. V. , Zhizhko V. V.
Published: June 2023

In the paper a preliminary estimation of the dynamic qualities of passenger coaches is presented and the choice of parameters of suspension stages for bogie 68-7007 is performed with the purpose of their improvement and increase of operation traffic speeds.
The method of calculation of own oscillations of a plate with mixed conditions of the fastening contour
Authors: Pasechnik A. N. , Pasechnik V. A. , Novotna N. N.
Published: June 2023

It is offered an asymptotic method of calculation and study of the eigen vibrations of thin elastic rectangular plates with mixed conditions of fastening the contour of type "pinching-joint" for symmetrical and asymmetrical placement of the fastening areas.
Building a movement of magneto and levitating trains in an unpredictable environment
Authors: Polyakov V. A. , Khachapuridze N. M.
Published: June 2023

The method of constructing the goal-directed dynamics of magnet-levitation train is offered. The components of its motion are divided on useful and parasitic. Their situation is expected unpredictable.
The study of stress-strain state of the mounting bracket inclined thrust to the buffer beam of locomotive 2EL5
Authors: Sultan A. V. , Tovt B. N.
Published: June 2023

The research and analysis of the stressed-and-strained state of bracket of fastening of a sloping rod to a buffer squared beam of electric locomotive 2EЛ5 is executed. On the basis of research results the modernization of bracket design is offered.
NUMERICAL STUDY ON FLOW AND HEAT TRANSFER PERFORMANCE OF A NOVEL MULTILAYER MINI-CHANNEL HEAT EXCHANGER WITH LOW AXIAL HEAT CONDUCTION
Authors: Li Libo , Bi Jiyuan , Zhang Xiaoxu , Yang Bo , Wang Qiuwang , Ma Ting
Published: June 2023

The printed circuit heat exchanger is a typical representative of mini-channel heat exchangers, which
are generally applied in many advanced energy and power systems due to their high compactness and efficiency. However, axial heat conduction may significantly decrease efficiency at low mass flow rates, and few studies have focused on enhancing the performance of heat exchangers by reducing axial heat conduction. This study proposes a novel multilayer mini-channel heat exchanger to solve this problem. The axial heat conduction of the new design is reduced by inserting phlogopite layers into the metal
sections. The thermal-hydraulic performance of the novel multilayer mini-channel heat exchanger is
investigated at different numbers of segments and different mass flow rates using Fluent. The results
show that, at low mass flow rate, the performance of the multilayer heat exchanger is superior to that
of a traditional heat exchanger. With the increase of heat exchanger segments, the performance of the
multilayer heat exchanger is improved. The maximum relative increment in the new heat exchanger efficiency is 1.6%, and the pressure drop is relatively reduced by 12.3%. The difference in performance between the multilayer heat exchanger and the traditional heat exchanger decreases when increasing the mass flow rate. It is recommended that more segments of multilayer heat exchanger should be used for lower mass flow rates to achieve better performance.
Using Strychnos potatorum Seeds as a Natural Coagulant in Flood Affected Areas of Bangladesh
Authors: R Sharafi , N Anam , T Kamal , ST Tazwar
Published: June 2023

The aim of this research is to find and show the effectiveness of Strychnos potatorum seeds as a natural coagulant for purifying and producing potable water in flood prone rural areas of Bangladesh. Strychnos potatorum, locally called ‘Nirmali’ or ‘Nirmala’, is a natural coagulant which was used in the Indian Subcontinent during the stone ages but has slowly become forgotten. This research was carried out to reintroduce this ancient coagulant and find its effectiveness during floods, particularly in Bangladesh. As a riverine country prone to flooding and devoid of quality water purification systems, coagulants like alum and ferric sulfates are often used although these synthetic chemicals have been found producing DBPs in water which are associated with certain health hazards. And so, replacing these synthetic chemicals with a natural coagulant such as Strychnos potatorum seeds in flood prone rural areas will be a beneficial and cheap water purification system for the populace. To prove the effectiveness, various tests (pH, HCO3 , Cl, Na, K, Na2 CO3 , NTU, TCU, Total Hardness (CaCO3 ), BOD, COD, CFU) were carried out across flood prone areas around Dhaleshwari River (Nagarpur, Tangail) to find out whether Strychnos potatorum seeds will be able to replace the commonly used chemical coagulants and provide drinkable water to the flood affected people or not. Experiments were carried out to find the optimal dosage, flocculation and settling time and reusability of the Strychnos potatorum seeds. The reason behind selecting this region for research purpose is that the soil and tree characteristics of this area is perfect for planting and growing Strychnos potatorum trees and they can be easily distributed among the populace when disaster hits. The test results proved that the parameters comply with the WHO Drinking Water Standards. So, our test results have shown that the Strychnos potatorum seeds are highly effective when it is used to treat water in these flood prone areas. And our initial estimation is Strychnos potatorum will provide a remarkably successful and high yield in these targeted areas. According to our calculations and research it will cost only 0.18 dollars or 18 cents versus 0.25 dollars for most conventional method (Potash Alum) for per liter of water treatment. As the project will require planting Strychnos potatorum trees, the project will improve the environment and distributing them to flood affected populace will increase the peoples’ awareness regarding tree plantation and drinking safe water. Also, this project will act as a replacement to the synthetic chemical coagulants used in the flood affected rural areas of Bangladesh and replacing those synthetic chemical coagulants with biodegradable Strychnos potatorum will be good for the environment as a whole there will be less chemical waste. This project will strengthen the water security of Bangladesh as well as play an important role in stopping the climate change and its adversities.
RESEARCH ON CONSUMER OPINIONS ON THE USE OF CRYPTOCURRENCY IN ONLINE SHOPPING
Authors: AVCI İbrahim , ÖZMEN Ezgi , OZHAN Merve
Published: June 2023

Developments in the field of internet technologies have changed traditional shopping behaviors and led consumers to shop online on electronic commerce sites. Developments in the field of electronic commerce have also diversified payment systems and virtual currencies have started to be used in payments. When it comes to virtual currencies, the first concept that comes to mind recently is cryptocurrencies. Cryptocurrencies, which are seen as investment instruments, have started to be used as payment methods by many brands in the global market. At this stage, the basis of the research is to reveal the intention of consumers in Turkey to use cryptocurrencies in online shopping. The goal of the study, which was conducted within the framework of the Technology Acceptance Model, was to discover the implications of consumers' perceptions of cryptocurrencies' ease of use, risk, and trust factors on their perceived benefit and intention to use cryptocurrencies in online purchasing. For this aim, it was discovered that perceived ease of use and trust have a significant positive effect on perceived benefit, while perceived risk has a significant negative effect, based on the analysis of data obtained from 391 customers via the online survey technique. In addition, perceived ease of use, trust and benefit also positively affect the intention to use cryptocurrency in online shopping. It is concluded that the perceived risk factor does not affect the intention to use cryptocurrency in online shopping. The findings provide significant theoretical and practical contributions to the fields of cryptocurrency and electronic commerce.
SMART PHONE MARKETS ANALYSIS WITH A-PRIORI ALGORITHM: THE CASE OF TURKEY
Authors: ÖZÇALICI Mehmet , SOYSAL Ayşe Nur
Published: June 2023

With the disappearance of the borders among the countries, competition has been moved to an international level. With the customer-oriented marketing understanding, customers have become the most important assets of the enterprises. With the global continuation of competition, carrying out different marketing activities for their current customers and potential customers has become a necessity for the enterprises to ensure continuity. At the point of being able to carry out correct delivery regarding the product and service preferences of the customers, the enterprises’ need for further customer data has emerged. In the context of reaching further data and interpreting the data, data mining has become an important topic for the enterprises. With this study, it has been aimed to analyze, with the association rules, the technical features of the mobile phones having iOS and Android operating systems and to identify which technical features appear together. Trials were conducted on in how many categories the data will be categorized and the dataset was discretized into the category number revealing the highest performance values. The achieved results will be helpful for a clearer understanding of the features of the products available in the mobile phone market.
FAİZ OLMAMASI MEŞRUİYET İÇİN YETERLİ Mİ? TASARRUFA DAYALI FAİZSİZ KONUT FİNANSMAN SİSTEMİNİN EKONOMİK ANALİZİ
Authors: TOPRAK A.ömer , EYERCİ Cem , DEMİR Ömer
Published: June 2023

Konut sahipliği hemen her toplumda en önemli refah göstergelerinden biridir. Uzun süreli birikim gerektiren konut edinme süreci genellikle uzun vadeli banka kredileriyle karşılanır. Günümüzde faizli işlem yasağına ilişkin dini hassasiyetin yaygın olduğu Müslüman toplumlarda ise faize alternatif çeşitli araçlar geliştirilmiştir. Tasarrufa dayalı faizsiz konut finansman sistemi (FKFS) faizli işlemlere alternatif bu araçlardan biridir. FKFS Türkiye’de 1990’lı yıllarda başlayan, gittikçe yaygınlaşan ve 2021 yılında yasal çerçeveye kavuşturulan bir sistemdir. Bu çalışmada Türkiye’de faaliyet gösteren bu yeni tür işletmelerin önerdikleri modelin reel ekonomik getiri ve maliyetleri yönünden analizi ve alternatif sistemlerle karşılaştırılması yapılmıştır. Modelin, fon toplama ve kullandırmada belirsizlikleri artırıp, katılımcılara hiç faydası olmayan batık maliyet oluşturarak onları bu yolla sistem içinde kalmaya zorlayan; yüksek tutarda organizasyon ücretini zorunlu kılan; katılımcıların büyük kısmına faizli veya faizsiz alternatif fon temin yöntemlerinden daha fazla maliyet yükleyen; reel olarak eşdeğer olmayan parasal fonları kura yoluyla, bir nevi şansa bağlı servet transferine yol açan sonuçları dikkate alınmadan sadece faizle işlem yapıp yapmama gibi tek bir faktöre indirgenerek değerlendirilemeyeceği sonucuna varılmıştır.
الإ یقِاعَ فِي القرُآنِ وأَشَكْاَلھَُ - Kur’ân’da Ritim ve Şekilleri
Authors: MOHAMMED Sihan
Published: June 2023

Bu çalışma bu ritimselliğin türlerine, mahiyetine, oluşumuna ve Kur’ân üsluplarında nasıl ortaya çıktığına yoğunlaşmaktadır. Kur’ân’ın ritimselliğindeki yaratıcılığı, temeyyüzü ve güzelliği, yeni bir bakış açısı ve farklı bir anlayışla ele almaya çalışmaktadır. Araştırmamız söz konusu ritimselliğin türlerini açıklığa kavuşturma ve netleştirmede betimleme yöntemini izlemiştir. Daha sonra da Yüce Kur’ân’dan örnekler vererek bunları vurgulamış ve ritmin farklı şekillerde manaya sirayet etmesini sağlayan bağlaçları ortaya çıkararak tahlil etmiştir. Şöyle ki - söz konusu ritimsellikteki temel türleri arz etmeden ve bu çalışmanın yoğunlaştığı, ayetlerde ritim bulunduğu fikrini destekleyen kuralları açıklamadan önce- Kur’ân ayetlerinde bulunan ritminselliğin sessel mucizeye dikkat çekmedeki rolüne atıfta bulunmuştur ki bunun manayı açıklamadaki rolünü ortaya koyabilsin. Bu araştırma bedî‘ ritmi ile başlayarak, duygusal ritme, oradan da hece ritmine kadar Kur’ân’ın ritimselliğinin şekillerini açıklamaya yoğunlaşmıştır. Bu da söz konusu tüm ritimlerin betimlenmesi ve aslında zaten var olan ve kullanımda olan, ancak Kur’ân’ın azâmeti ile eşsiz hale getirdiği harfler, kelimeler, cümleler ve üsluplar arasında araştırılması, ritmin etkileyici noktalarına ve bu etkinin mana üzerindeki yansımasına değinmek yoluyla yapılmıştır. Araştırma, bu ritmin manayı kelimeler halinde somutlaştırarak duyguyu nasıl doruğa çıkardığını açıklamıştır. Belli bağlamlarda belli lafızların seçilmesi ve psikolojik anlamlarla renklendirilmiş bediî üsluplar kullanılması yoluyla yapılan bu somutlaştırma, amacı ifade etmedeki yüksek performans gücünü göstermektedir.
Ehl-i Sünnet Perspektifinden İnanç Konularının Kesinlik Yönünden Tasnifinin İmkânı
Authors: SOĞUKOĞLU Fehmi
Published: June 2023

Makalede, îmanî konuların 'inanılması şart', 'inanılması gerekli', 'inanılması önerilen' ve 'inanılması serbest bırakılan' şeklinde tasnif edilip edilemeyeceği sorusu üzerine odaklanılmış, Mâtürîdî ve Eş‘arî ekolleri açısından böyle bir yaklaşımın imkânı sorgulanmıştır. Çalışmada öncelikle şu iki problemin çözümlenmesinin gerektiği düşünülmüştür. Birincisi, şüphe barındıran bir bilgiyle (zannî) kesin bir tasdîk nasıl oluşturulabilir? İkincisi ilgili ekol uleması kelâm eserlerinde doğru haberi mütevâtir olarak açıklamasına rağmen âhâd bir haberle inanç konusu inşa etmesi bir çelişki değil midir? Birinci problem için üç ayrı çözüm önerilen makalede, ikinci sorun, tevâtürün kelâmın aslî konuları için zorunlu olduğu önermesiyle çözümlenmeye çalışılmıştır. Temel inanç meselelerinde sadece kat’îyyât rol oynarken, cüz’î konularda zannî bilgi de karineler eşliğinde makbul görülebilir düşüncesi dile getirilmiştir. Bu düşünce aynı zamanda inanç konularının tasnif edilebilmesine imkân tanımaktadır. Akabinde her bir hüküm için iki örnek verilerek, bu düşüncenin pratikte ne anlam ifade ettiği belirlenmeye gayret edilmiştir. Ehl-i sünnet’le Mu‘tezile arasındaki temel ihtilaflı meselelerin “inanılması gerekli” kategorisinde ortaya çıktığı saptanmıştır. İnanılması önerilen meselelerde mezkûr mezhep ulemasının kendi içinde ihtilaf ettiği tespit edilmiştir. İnanılması serbest bırakılan hususlar ise hakkında olumlu-olumsuz net bir bilginin bulunmadığı inanç meselelerini içermektedir. Netice olarak Ehl-i sünnet’in ortaya koyduğu prensipler açısından inanç konularının tasnifi mümkün görülmektedir.
Adan Jarso Golole. Bağdat Büveyhîler’in Eline Düşerken (279- 334/892-945)
Authors: SAZAK Ömer
Published: June 2023

Abbâsî halifesi Mu‘tazıd-Billâh’ın devletin merkezini 279 (892) yılında yeniden Bağdat’a taşımasının ardından yaşanan siyasî, idarî ve iktisâdî toparlanma süreci kısa sürmüştü. Muktedir-Billâh’ın erken yaşta halife olması ve yaşanan siyasî çekişmeler, Bağdat’ın 334 (945) yılında Büveyhîler’in eline düşmesine neden olmuştu. Bu yazı, Adan Jarso Golole’nin 2021 yılında Büveyhî Hakimiyetine Giden Süreçte Bağdat’ta Siyâsî, İktisâdî ve İçtimâî Hayat (279-334/892-945) adıyla doktora tezi olarak hazırladığı ve 2021 yılında Bağdat Büveyhîler’in Eline Düşerken (279-334/892-945) adıyla kitap olarak yayınladığı çalışmayı değerlendirmeyi hedeflemektedir.
EFFECT OF RAMELTEON ON LIPOPOLYSACCHARIDE INDUCED HIPPOCAMPAL TOXICITY
Authors: KAYNAK Mine , SAVRAN Mehtap , AŞÇI Halil , GÜLLE Kanat , İLHAN İlter
Published: June 2023

Objective

Despite the advances in medicine, sepsis still remains

a major health problem worldwide and brain tissue is

one of the structures damaged in the early period of

sepsis. Neuroinflammation (NI) is considered as the

main mechanism in septic brain injury. Ramelteon

(RML) is a non-selective (MT1 / MT2) melatonin

receptor agonist and was approved by the FDA in 2005

with the indication of insomnia. RML shows relatively

higher affinity for both receptor subtypes among other

melatonergic agonist drugs.

Material and Method

Twenty-eight male Wistar Albino rats were used

to investigate the protective effect of RML on

lipopolysaccharide (LPS) induced NI. Control, LPS (5

mg/kg, intraperitoneally), RML (8 mg/kg, orally) and

LPS + RML (45 minutes before LPS) groups were

created. Six hours following the last drug administration,

rats were sacrificed. Blood for hemogram analysis and

cortical and hippocampal tissues for histopathological

evaluation were collected.

Results

LPS increased white blood cell and neutrophil/

lymphocyte ratio (NLR) while it decreased lymphocyte

and platelet counts. RML decreased NLR and

increased platelet counts significantly. In histochemical

evaluation, marked inflammatory cell infiltration and

apoptosis were observed in both hippocampal and

cortical areas of LPS group. RML decreased the

inflammatory response and apoptotic bodies in these

areas.

Conclusion

RML may be protective on LPS-induced NI observed in

hippocampus via anti-inflammatory and anti-apoptotic

mechanisms.
ANKAFERD BLOOD STOPPER ALLEVIATES CADMIUM-INDUCED LUNG INJURY BY REDUCING MITOCHONDRIAL STRESS-RELATED APOPTOSIS VIA BAX/BCL-2 AND CYT-C/CAS-3 PATHWAYS
Authors: TEPEBAŞI Muhammet Yusuf , SEZGİNER Perihan
Published: June 2023

As a result of environmental factors, cadmium (Cd)

taken into the body causes damage to lung tissues

through inflammation, oxidative stress, and increased

apoptosis. Ankaferd Blood Stopper (ABS), which is

used as a hemostatic agent, has antioxidant, antiinflammatory,

antibacterial, antiapoptotic, and wound

healing properties due to five different plant extracts

and components in its composition. Therefore, in our

study, we aimed to investigate the curative effect of

ABS on the toxicity of Cd on the lung.

Material and Method

Thirty two rats were used in the study, and they were

divided into 4 groups, with 8 rats in each group:

control, Kd (2.5 mg/kg single dose ip), ABS (1.5 ml/

kg single dose ip), and Kd+ABS (Kd, 2,5 mg/kg single

dose ip-ABS, 1.5 ml/kg single dose ip). Lung tissues

were evaluated histopathologically. Inflammation

was evaluated immunohistochemically with tumor

necrosis factor-α (TNF-α). Oxidative stress was

evaluated with the total oxidant level (TOS) and total

antioxidant level (TAS) using the spectrophotometric

method. Apoptosis was evaluated using RT-PCR with

relative mRNA fold changes of Bcl-2-associated X

(Bax), B-cell lymphoma 2 (Bcl-2), cytochrome c (Cyt

c), and caspase 3 genes.

Results

Histopathological findings such as congestion,

hemorrhage, and mononuclear cell infiltration were

found to increase in the Cd group. It was found that

Cd increased inflammation by increasing TNF-α,

increasing TOS and OSI, and decreasing TAS,

causing an increase in oxidative stress. (p
Risk factors for COVID-19 infection in people with 4th dose of bivalent mRNA vaccines in general medicine from October 2022 to February 2023
Authors: Jose Luis Turabian
Published: June 2023

Background: Risk factors of COVID-19 infection in people vaccinated with the 4th dose of mRNA COVID-19 vaccine remain the subject of debate. Objective: To identify risk and protective factors of COVID-19 in vaccinated people with 4th dose of bivalent mRNA vaccines. Location: General Practitioner consultation in Toledo (Spain). Methodology: Longitudinal and prospective study of cases and controls of adult patients with or without COVID-19 infection in vaccinated people with 4th dose of bivalent mRNA vaccines, from October 1, 2022, to February 28, 2023. Results: Five cases of COVID-19 infections in vaccinated people with 4th dose were included, which were compared with 52 controls (with 4th dose and without COVID-19 after the booster). The risk factors for COVID-19 infection with the 4th dose were: Women (RR = 1.67), Socio-Health Care Workers (RR = 10.39; p = 0.0349), Chronic Diseases of the blood (RR = 6.9. p = 0.0322), Chronic Diseases of Endocrine (RR = 2.72. p = 0.039425), and Chronic Diseases of Circulatory system (RR = 1.87). Conclusion: In the general practice setting in Toledo, Spain, being a socio-health care worker and having chronic diseases presumably associated with immunosuppression were statistically significant risk factors for COVID-19 infection in people vaccinated with the 4th dose of bivalent mRNA vaccines. The most exposed or immunosuppressed people continue to be at risk of becoming infected with SARS-CoV-2 despite having received the 4th dose of the mRNA COVID-19 vaccine, so other preventive methods in these groups are advisable.
Western Blotting v1
Authors: Cordeiro-Spinetti Eric
Published: June 2023

It's a classic
Quality control assessment for microbial genomes: GalaxyTrakr MicroRunQC workflow v2
Authors: Timme Ruth
Published: June 2023

PURPOSE: Step-by-step instructions for checking WGS sequence quality for bacterial pathogens. The MicroRunQC workflow, implemented in a custom Galaxy instance, will produce quality assessments for raw reads (Illumina paired-end fastq files) and draft de novo assemblies, along with reporting the sequence type for each isolate. This workflow will work on most microbial pathogens, so we advise laboratories to upload their entire MiSeq/NextSeq run through this workflow. SCOPE: This protocol covers the following tasks: 1. set up an account in GalaxyTrakr 2. Create a new history/workspace 3. Upload data 4. Execute the MicroRunQC workflow 5. Interpret the results - check against GenomeTrakr QC thresholds Version updates: V3: updated with Cronobacter thresholds V4: MicroRunQC updated to V1.1 Includes updates to skeza and mlst methods, as well as adjusted assembly QC thresholds for E.coli. Added Enterobacter QC thresholds to threshold table. V5: New column in the output table to capture additional mlst data fields when available in Sequence Type definition files (not available for all species)