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    Wyświetlanie 1-4 z 4
    Tytuł:
    Labor market in Poland - analysis of diversity
    Autorzy:
    Gajdos, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/34670811.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    statistic
    econometric
    analysis
    labor market
    statystyka
    ekonometria
    analiza
    rynek pracy
    Opis:
    The main aim of below consideration is presentation Polish Labor Market and changes inside, along last years. Labor market considerations are extremely important and have a large impact on the daily behavior of entities in this market. The extent, to which we are able to analyze changes taking place in individual areas of the surveyed area will allow us to make appropriate decisions on both – the demand and supply side of this labor. Author would like to present base issues connected with supply and demand taking place at this field in Poland. Getting to know the directions of changes taking place on the Labor Market may allow for an appropriate approach to human resource management. The article consists of short introduction, theoretical part, empirical part and summary at the end. Theoretical part includes base information and definition about Labor Market. Empirical section shows data analyzing, methods, tables and graphs. In the summary author would like to recapitulate analyzing case and draw some conclusions.
    Źródło:
    Quality Production Improvement - QPI; 2021, 3, 1; 242-250
    2657-8603
    Pojawia się w:
    Quality Production Improvement - QPI
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Labor market in Poland - analysis of diversity
    Autorzy:
    Gajdos, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/23944760.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    statistic
    econometric
    analysis
    labor market
    statystyka
    ekonometria
    analiza
    rynek pracy
    Opis:
    The main aim of below consideration is presentation Polish Labor Market and changes inside, along last years. Labor market considerations are extremely important and have a large impact on the daily behavior of entities in this market. The extent, to which we are able to analyze changes taking place in individual areas of the surveyed area will allow us to make appropriate decisions on both – the demand and supply side of this labor. Author would like to present base issues connected with supply and demand taking place at this field in Poland. Getting to know the directions of changes taking place on the Labor Market may allow for an appropriate approach to human resource management. The article consists of short introduction, theoretical part, empirical part and summary at the end. Theoretical part includes base information and definition about Labor Market. Empirical section shows data analyzing, methods, tables and graphs. In the summary author would like to recapitulate analyzing case and draw some conclusions.
    Źródło:
    System Safety : Human - Technical Facility - Environment; 2022, 4, 1; 28-37
    2657-5450
    Pojawia się w:
    System Safety : Human - Technical Facility - Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aircraft piston engine load distribution in steady state operating conditions
    Autorzy:
    Czarnigowski, Jacek
    Trendak, Michał
    Powiązania:
    https://bibliotekanauki.pl/articles/24202454.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    piston engine
    engine parameters
    statistic
    normal operating conditions
    silnik tłokowy
    parametry pracy silnika
    statystyka
    normalne warunki pracy
    Opis:
    The article presents the results of statistical analysis of aircraft piston engine operational parameters during normal operating conditions. Test was carried out on ultralight gyroplane Tercel produced by Aviation Artur Trendak equipped with CA 912 ULT piston engine. Research was conducted under normal operating conditions of the autogyro and data was collected from 15 independent tests including a total of 14 flight hours conducted during training flights. Engine and flight parameters were recorded at 9 Hz during each flight using on-board Flight Data Recorded system. The data collected was subjected to statistical analysis to determine the statistical distribution of parameters defining the engine's operating condition. The analysis covered engine speed, intake manifold pressure, oil temperature, head temperature and exhaust gas temperature. The results were presented in the form of histograms showing the characteristic ranges of the parameters in aviation engine operation. An analysis of the rate of change of the analysed parameters was then carried out. This was the basis for defining the engine's steady state. The results showed that the steady state of the engine under these operating conditions accounted for more than 78% of the total engine operating time. A Power Consumption Ratio indicating the load range of the engine was determined for steady states. It was shown that most of the time the motor operates at an average load of between 50% and 80% of the nominal value.
    Źródło:
    Combustion Engines; 2023, 62, 2; 29--35
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of operating parameters of the aircraft piston engine in real operating conditions
    Autorzy:
    Czarnigowski, Jacek
    Rękas, Daniel
    Ścisłowski, Karol
    Trendak, Michał
    Skiba, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/2097612.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    piston engine
    engine parameters
    statistic
    normal operating conditions
    silnik tłokowy
    parametry silnika
    statystyka
    normalne warunki pracy
    Opis:
    The article presents the results of analysis of operational parameters of piston engine CA 912 ULT which is a propulsion system of ultralight gyroplane Tercel produced by Aviation Artur Trendak. Research was conducted under normal operating conditions of the autogyro and data was collected from 20 independent tests including a total of 28 flight hours, divided into training flights and competition flights. Engine speed, manifold air pressure and temperature, fuel pressure, injection time, and head temperature were recorded at 9 Hz during each flight. Collective results were presented to show the statistical analyses of the individual parameters by determining the mean values, standard deviations and histograms of the distribution of these parameters. Histograms of operating points defined by both engine speed and manifold air pressure were also determined. Analyses of the engine dynamics as a distribution of the rate of change of the engine rotational speed were also carried out. It was shown that the engine operating points are concentrated mainly in the range of idle and power above 50% of nominal power. The most frequent range is 70-80% of nominal power. It was also shown that the dynamics of engine work in real operating conditions is small. It was also shown that the way of use significantly influences the distribution of operating points. During training flights, an increase in the number of take-offs and landings causes an increase in the amount of engine work at take-off and nominal power and at idle.
    Źródło:
    Combustion Engines; 2021, 60, 4; 83--89
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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