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Kulinich, Tetiana,Berezina, Liudmyla,Bahan, Nadiia,Vashchenko, Iryna,Huriievska, Valentyna International Journal of Computer ScienceNetwork S 2021 International journal of computer science and netw Vol.21 No.5
Successfully adapting to digital and customer-oriented transformation, the concept of lean manufacturing professes the philosophy of creating greater benefit while minimizing losses. These losses are operations that do not add value in the production process to ensure the efficiency, flexibility, and profitability of projects. In the context of broad automation and digitalization of all sectors of the economy, mechanisms for combining automation technologies and lean production are becoming available. Moreover, when it comes to the efficient use of financial, human, or material resources, it is clear that the use of Industry 4.0 technologies can be an effective tool for achieving the goals of lean production, as many of them pursue the same goal. In this context, this article aims to study the effectiveness of the implementation of project management concepts at the global level and identify the main factors influencing its effectiveness to ensure the achievement of lean production through LEAN technologies and Industry 4.0 technologies. To achieve this goal, several statistical indicators were selected and several statistical methods of analysis were used: pairwise correlation, regression analysis, methods of comparison, synthesis, and generalization. Statistical analysis was conducted according to a survey conducted by the Project Management Institute (PMI) in 2020. An economic-mathematical model of dependence of project effectiveness in different regions of the world on the level of implementation of project management approaches is built, which shows that the increase in project effectiveness by 85% is due to financial losses, technical training, and consumer orientation. These results allow project managers to develop appropriate strategies to improve project management approaches at all levels. It is established that LEAN technologies and technologies of Industry 4.0 have several tools that have a positive effect on minimizing losses following the concept of lean production. Besides, given that the technology of Industry 4.0 is focused on the automation of Lean Production technology, a mechanism for the introduction of lean production using these technologies and methods.
A search for doubly charged Higgs production in Z<sup>0</sup> decays
OPAL Collaboration,Acton, P.D.,Alexander, G.,Allison, J.,Allport, P.P.,Anderson, K.J.,Arcelli, S.,Astbury, A.,Axen, D.,Azuelos, G.,Bahan, G.A.,Baines, J.T.M.,Ball, A.H.,Banks, J.,Barlow, R.J.,Barnett, North-Holland Pub. Co 1992 Physics letters. Section B Vol.295 No.3
A search for the decay of the Z<SUP>0</SUP> into doubly charged Higgs bosons (H<SUP>+/-+/-</SUP>) decaying to same-sign lepton pairs is presented using data collected with the OPAL detector at LEP, with an integrated luminosity of 6.8 pb<SUP>-</SUP>. Four-track final states from prompt decays, and events with at least one highly ionizing track from long-lived H<SUP>+/-+/-</SUP> were sought. H<SUP>+/-+/-</SUP> are excluded in the mass range from zero to 45.6 GeV/c<SUP>2</SUP> and for a coupling constant range that extends down to zero.