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    Wyświetlanie 1-3 z 3
    Tytuł:
    Application of selected methods and approaches for improvement of processes and their use in practice in companies of wood processing industry in Slovakia
    Autorzy:
    Simanová, Ľubica
    Gejdoš, Pavol
    Powiązania:
    https://bibliotekanauki.pl/articles/409623.pdf
    Data publikacji:
    2019
    Wydawca:
    STE GROUP
    Tematy:
    process
    process management
    process improving
    quality management methods
    Opis:
    The aim of the paper is to point out the principles of process management and selected quality management tools, which are aimed at improving the processes of the wood processing industries of the Slovak Republic. The knowledge from these areas is based on the analysis of the theoretical origins from domestic and foreign sources and supported by the results of the research carried out in the first half of the year 2017. In the processing of the results, classical methods of research work were used such as analysis, synthesis, comparison, descriptive statistics, contingency tables, chi-quadrat test and graphic depiction. Based on the analysis of the research results, there was a slight dependence between the process optimization levels in the timber industry and other process improvement methods such as statistical process control methods and graphical analysis and problem solving tools.
    Źródło:
    Management Systems in Production Engineering; 2019, 3 (27); 162-165
    2299-0461
    Pojawia się w:
    Management Systems in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Implementation of the Six Sigma methodology in increasing the capability of processes in the company of the furniture industry of the Slovak Republic
    Autorzy:
    Simanova, Ľubica
    Gejdoš, Pavol
    Powiązania:
    https://bibliotekanauki.pl/articles/1537809.pdf
    Data publikacji:
    2021
    Wydawca:
    STE GROUP
    Tematy:
    process
    capability
    Six Sigma
    process improving
    quality
    performance
    Opis:
    The aim of the article is to present the results of a case study focused on the implementation of the Six Sigma methodology in order to improve the quality and increase the efficiency of furniture production processes. Positive results of implementation after the implementation of corrective measures were achieved in the values of process capability coefficients, reduction of nonconformities and subsequent reduction of DPMO, increase of the values of the level of efficiency and sigma of the critical process.In the processing of the results, classical methods of research work were used such as analysis, synthesis, comparison, descriptive statistics, coefficients Cp a Cpk, DPMO, level of efficienty and sigma,and also graphic methods.
    Źródło:
    Management Systems in Production Engineering; 2021, 1 (29); 54-58
    2299-0461
    Pojawia się w:
    Management Systems in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative analysis of methane concentration near the junction of the longwall and top road
    Autorzy:
    Zmarzły, Marian
    Trzaskalik, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/409850.pdf
    Data publikacji:
    2019
    Wydawca:
    STE GROUP
    Tematy:
    process
    process management
    process improving
    quality management methods
    Opis:
    Mining of longwalls ventilated by the „U” method is willingly applied in Polish coal-mines due to low costs of workings maintenance, low costs of ventilation and a lower fire threat because of a limited flow of air through goafs. However, such a way of ventilation may pose an increased risk of methane explosion. For this reason, the “U” ventilation has been limited in longwalls with methane risk. The mining regulations in force provide that ventilation methane-bearing capacity, i.e. the intensity of methane flow into the ventilation air cannot exceed 20 m3 CH4/min. The regulations also provide that in the event the absolute methane-bearing capacity, i.e. a sum of methane released to the ventilation air and captured by the methane drainage system is higher than 25 m3 CH4/min and the “U” method of ventilation is applied, the effectiveness of methane drainage should be minimum 50% in relation to the forecast absolute methane-bearing capacity. To streamline the process of ventilation near the junction of the longwall and the gallery carrying off the used air, auxiliary ventilation means are applied, such as a ventilation partition, a ventube – which supplies air without methane or with a low concentration of methane, injectors etc. Application of these means is limited by the cross-section of the heading carrying off the air from the longwall. Deformations of the ventilating roadway, which is usually located in the one-sided vicinity of goafs, may prevent the use of a ventilation partition, which has a negative influence on the conditions of ventilating the junction of the longwall and ventilating roadway. The author of the article also refers to such conditions, presenting average values and maximum concentrations of methane concentrations recorded with four methane concentration sensors, located in the vicinity of the junction of the longwall and ventilating roadway.
    Źródło:
    Management Systems in Production Engineering; 2019, 3 (27); 166-173
    2299-0461
    Pojawia się w:
    Management Systems in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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