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    Modeling and analysis of ink distribution in the ink printing system of the sequential-parallel structure
    (2019-06-26) Verkhola, M.; Panovuk, U.; Huk, I.; Lviv Polytechnic National University
    In the paper, a multi-zone signal graph is constructed that corresponds to the structure of the ink printing system and reflects the process of circulating the direct and reverse ink flows. A mathematical model of the ink printing system of a sequential-parallel structure with two oscillator cylinders was developed, which describes the process of ink distribution and its transfer by elements of the ink printing system from the ink feeder device to the imprints. The model details the mathematical description of the work mode of the oscillator cylinders and the ink feeder device. On the basis of the mathematical model and the signal graph, a simulator of the ink printing system is constructed in Matlab-Simulink environment. Checking the validity of the simulation model and, accordingly, the mathematical model is based on the balance of ink's supply and selection. Based on the models of the ink printing system components, information technology is developed which makes it possible to investigate the process of ink transfer at different work modes of the oscillator cylinders. The research and analysis of the effect by the change in the value of the axial stroke of each oscillator cylinders on the ink flow distribution on the imprints at various densities of form filling with the printing elements were carried out.
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    Software architecture design of the information technology for real-time business process monitoring
    (2018-06-18) Batyuk, A.; Voityshyn, V.; Lviv Polytechnic National University
    Having precise understanding of how business processes are performed in real-life is an important input for decision makers and consequently is a strong competitive advantage for an organization. In the constantly changing modern business environment it is crucial to provide that information as soon as possible, preferably in the real-time mode. In practice, such kind of tasks are usually resolved by means of Business Intelligence solutions implemented either from scratch or based upon customizable packages. Despite of the wide range currently available types of data visualizations, modern BI solutions still lacks features to represent data obtained from process-aware systems, for example control flow charts. Current paper is devoted to the information technology for real-time business process monitoring. The represented solution is an extendable software which is based on the lambda architecture and a streaming process discovery technique.
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    Generalized formal model of Big Data
    (Commission of Motorization and Energetics in Agriculture, 2016) Shakhovska, N.; Veres, O.; Hirnyak, M.
    This article dwells on the basic characteristic features of the Big Data technologies. It is analyzed the existing definition of the “big data” term. The article proposes and describes the elements of the generalized formal model of big data. It is analyzed the peculiarities of the application of the proposed model components. It is described the fundamental differences between Big Data technology and business analytics. Big Data is supported by the distributed file system Google File System technology, Cassandra, HBase, Lustre and ZFS, by the MapReduce and Hadoop programming constructs and many other solutions. According to the experts, such as McKinsey Institute, the manufacturing, healthcare, trade, administration and control of individual movements undergo the transformations under the influence of the Big Data.
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    Modernization of the manufacturing system of national enterprises by implementing modern information technologies
    (Commission of Motorization and Energetics in Agriculture, 2016) Novakivskii, I.; Lushchak, N.
    This article concerns the issue of modernization of the manufacturing system of national enterprises by implementing modern information technologies. The analysis of the need for the industrial transformation of Ukraine at the macro level has been conducted. The role of modernization of the manufacturing structure of the enterprise is determined. Changes in technology have significant influence on the transformation of enterprise management system. The role of modern information systems in management of technological processes is analyzed. Effective Enterprise Management System (EMS) shall harmoniously combine diverse targeted components into the new competitive socioeconomic system. Changes in areas of EMS improvement during the process of formation of information infrastructure are shown in this research. MES system is a key element of the overall enterprise information structure; it is able to meet the challenges of the manufacturing sphere. The existing barriers to the development of production systems for national enterprises are also analyzed and summarized.
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    Geodistributed analysis of forest phytomass: Subcarpathian voivodeship as a case study
    (Lviv Polytechnic National University, 2014) Striamets, O.; Lyubinsky, B.; Charkovska, N.; Stryamets, S.; Bun, R.
    An approach to the implementation of spatial inventory of greenhouse gas sinks and emissions in forestry sector is presented. The algorithms for disaggregation of official statistical data on forests at the regional level, and formation of geodistributed database using the digital map of land use are proposed. As an example the forests of Subcarpathian Voivodeship of Poland were investigated. This study presents the results of modeling the flow of carbon in forest phytomass taking into account different tree species composition, age class and other characteristics. The ‘regional’ coefficients for phytomass and carbon deposited were clarified taking into account regional specificity. Also an algorithm for determining aboveground and underground phytomass of tree by its stock and forests of different types has been created. The correlation between the total area and stock for each species of forest-forming stands was analysed. The multilayer digital maps of deposited carbon, and greenhouse gas emissions in forests of Subcarpathian Voivodeship were created. For the spatial inventory of forest phytomass the territory of voivodeship was divided into square areas 2x2 kilometers in size, and stock phytomass in each such elementary area has been analised. Acheaved results were verified using GIS technology, and forest inventory data.