Determining the service parameters of a model with an unlimited incoming flow of requests for a Class tractor

    Mechanization in agriculture & Conserving of the resources, Vol. 67 (2023), Issue 6, pg(s) 177-180

    The parameters of an agricultural machinery workshop with an unlimited incoming flow of repair-service requests have been studied. As a result of each research experiment and the obtained change values of the calculated service parameters, the character of their change depending on the number of channels serving the tractors was calculated. The change values of the calculated parameters depending on the number of service channels are reflected in a table and graphically presented.


    Field Service Management (FSM) Simulation Model

    Industry 4.0, Vol. 8 (2023), Issue 6, pg(s) 321-325

    This work is dedicated to the development of a simulation model of a Field Service Management (FSM) system. Its tasks include modelling the management of the activities of employees of a field service company: maintaining requests, dispatching orders and field workers, monitoring the quality of work performed. The goals of developing a model of a FSM are to increase the speed of customer service, ensure the process of quality control of work performed, reduce transport and time costs, and provide field workers with the necessary information to understand the scope and location of work. All this leads to improved quality of technical support and service and, as a result, customer satisfaction.


    An experimental study of lane change distance in obstacle avoidance maneuver

    Trans Motauto World, Vol. 8 (2023), Issue 3, pg(s) 80-84

    The obstacle avoidance maneuver was the subject of many researches. Most of the models for calculation of distance necessary to perform the avoidance maneuver were based on theoretical researches, that took into account a large number of simplifications. In order to analyse the influence of different drivers and vehicles on a maneuver, an experimental research study of lane change was carried out at the test track which enables repeatability in the same conditions. Based on those researches it was established the empirical model for calculation of evasive maneuver distance. This model can be used for traffic accidents reconstruction, but also in the development concept of modern “intelligent” vehicles.


    Assessing the impact of intellectual capital on economic growth

    Mathematical Modeling, Vol. 6 (2022), Issue 4, pg(s) 131-133

    The article explains the elements that have the largest share in intellectual capital and explains the possibility of quantitative assessment of the specific weight of these elements in intellectual capital. Here on the example of the Republic of Azerbaijan on the basis of statistical data the value of works and services on intellectual capital in Azerbaijan is analyzed, as well as the dynamics of added value created at the expense of intellectual capital. In the article, the impact of added value created by intellectual capital on economic growth in Azerbaijan has been evaluated in the software package Eviews-12.


    Application of artificial neural networks for prediction of business indicators

    Mathematical Modeling, Vol. 5 (2021), Issue 4, pg(s) 141-144

    This paper examines the applicability of the neural networks in developing predictive models. A predictive model based on artificial neural networks has been proposed and training has been simulated by applying the Long Short-Term Memory Neural Network module and the time series method. Python programming language to simulate the neural network was used. The model uses the stochastic gradient descent and optimizes the mean square error. Business indicators for forecasting the results of the activity and the risk of bankruptcy of a company are forecasted and a comparison of the obtained forecast values with the actual ones is performed in order to assess the accuracy of the forecast of the developed model. As a result, it can be noted that business indicators can be successfully predicted through the Long Short-Term Memory Neural Network and the forecasted values are close to the actual ones.


    A proposal for a basic structure of a business model for research management, with a focus on intelligent security systems within the scope of the quasar project

    Science. Business. Society., Vol. 6 (2021), Issue 2, pg(s) 62-65

    Joint research takes its place as a major innovation process. The aim is to build relationships through which to gain access to external sources of high technology (or other assets) and their integration into the products and services of business organizations.
    The establishment and operation of Competence Centers in our country, such as QUASAR, plays a leading role in planning, structuring and negotiating these relationships with universities, small high-tech companies, mid-market companies and large companies. The proper development of the business models of the Centers of Competence plays an essential role in this direction
    The purpose of this study is to present the impact of business models on two dimensions of joint research: cooperation as an alternative to successful relationships and business models as an effective tool for assessing the portfolio of opportunities and risk allocation.


    Impact of tourism income generated from the introduction of innovation on macroeconomic indicators in Turkey

    Innovations, Vol. 9 (2021), Issue 4, pg(s) 148-150

    This article presents a calculation model based on the impact of tourism services and income of hotel enterprises, which have a special share in this service, on the gross product, GDP, labor resources, capital investment and working capital through econometric models. It assesses labor resources, GDP, investment in fixed capital and key indicators for the development of the tourism complex of the Republic of Turkey and provides relevant forecasts. In addition, the statistical significance of the model based on the Eviews software package was checked and its suitability for forecasting purposes was determined.


    Structure of the Model of Hybrid Electric Vehicle Energy Efficiency

    Trans Motauto World, Vol. 6 (2021), Issue 3, pg(s) 76-79

    The hybrid electric vehicles (HEV) are promising vehicles with low exhaust emissions and increased autonomy of movement including internal combustion engine (ICE) and electric motor (EM) which is powered by the battery (B) . The main advantage of HEV over classic cars is the reduced fuel consumption, especially in urban traffic [1]. This is a prerequisite for good energy efficiency of HEV, which is determined by the fuel consumption and consumption, respectively the regeneration of electricity of HEV. These values depend on many factors such as speed, mileage, acceleration, mass, drag, climatic conditions and more. The modelling of the energy efficiency of HEV is related to the study and structuring of the factors that determine the fuel consumption and electricity consumption and the dependencies between them and their connection and construction in a model. The model of energy efficiency of HEV gives a quantitative assessment of the fuel consumption and the consumption (regeneration) of electricity of HEV, according to the main influencing parameters. In addition, the HEV energy efficiency model indicates the influencing parameters and their analytical or experimental determination. The correct modelling of energy efficiency is related to the correct determination of energy parameters and their logical connection in a selected model. The optimal model of energy efficiency of HEV is built from these factors that can be directly measured or calculated, which increases the accuracy and reliability of the results. This article discusses building an energy efficiency model of a hybrid electric vehicle.


    Warning and reporting of biological incidents during military operations

    Security & Future, Vol. 5 (2021), Issue 1, pg(s) 14-17

    In the past years, NATO member countries have faced the threat of bioterrorism, which requires the development of capabilities to deal with this threat. Timely detection and accurate identification of the type of bioagent used is essential for early wa rning of threatened military units, as part of the process of prevention and reduction of human casualties, as well as for the spread of the disease. The possible use of biological agents as weapons of mass destruction (WMD) is presented in the report. The military reconnaissance role in the process of investigation of disease outbreak is considered. For the implementation of the process for early warning and alert of biological threat, a scheme of a model of a platform for biological reconnaissance and monitoring is presented. In the model a configuration of hardware and software is used. Due to the increasing risk of use of biological weapons by terrorist organizations, the acquisition and integration of an advanced platform for monitoring and outbreak reconnaissance from the units of the Armed Forces of the Republic of Bulgaria is of key importance.


    Innovative business development and the startup ecosystem in the era of the fourth industrial revolution

    Industry 4.0, Vol. 6 (2021), Issue 1, pg(s) 32-36

    The study of the theoretical aspects of the development of innovative business has proved that the most effective form of innovative business, which can create and implement the final product, is a startup. The environment and infrastructure of a startup form its ecosystem. An innovation ecosystem includes economic agents, as well as an innovation environment consisting of ideas, rules of the game, social interactions, and culture. The state of the innovative business and the startup ecosystem of Ukraine behind its main components and institutions are analyzed, and the factors of the development of the startup ecosystem for its competitiveness among the world are determined. Government measures and initiatives should promote the emergence of a community of startup founders who will work closely with other actors in the private sector of the economy and the public sector. At the same time, the state should not assume the role of a leader, but only an initiator.


    Web application with Python and security of the information system

    Security & Future, Vol. 4 (2020), Issue 3, pg(s) 103-106

    The aim of the research is to develop a database management system for collecting, processing, storing and using information for the teaching of PhD students at a university using the high-level Python language.
    Studied and researched in the process of development are the main characteristics of the most widely used database management systems. The practical aspects of the design, creation and use of databases were analysed. Has been formulated the requirements to the functional capabilities of the developed database. For the development of the web-application was used Python programming language. The database model, the user interface and a set of reports were developed. A physical data model, oriented towards the design and the development of a database management system using the Python programming language was proposed. The main risks and threats to the security of information in the web-application are characterized. Guidelines for infrastructure protection are proposed.


    Model for high-pressure water atomization of metal melt using a vortex type jet

    Machines. Technologies. Materials., Vol. 14 (2020), Issue 6, pg(s) 243-246

    In this paper the physical model for high pressure water atomization of metal melts using hydraulic nozzle of a vortex type was proposed. The developed model assumes, that due to high speed water flow with significant centrifugal component of its velocity vector the rarefaction is formed, which causes intensive air suction leading to the formation of rotating gas (vapor-air) layer of toroid-like shape, providing a gap between the water flow and the metal stream. Thus water stream is separated from the heated surface of metal stream and the formation of particles during crystallization of melt droplets occurs due to surface tension mainly in this vapor-air layer. The cooling of melt droplets in the gas-water leads to the formation of spherical powder particles. The proposed model correlates well with the known experimental data on the production of spherical powders using a vortex-type annular hydraulic nozzle.