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    Wyświetlanie 1-6 z 6
    Tytuł:
    The application of Kohonen networks for identification of leaders in the trade sector in Czechia
    Autorzy:
    Vrbka, Jaromír
    Nica, Elvira
    Podhorská, Ivana
    Powiązania:
    https://bibliotekanauki.pl/articles/22446390.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Badań Gospodarczych
    Tematy:
    trade sector
    Kohonen networks
    leaders in the field
    cluster analysis
    return on equity
    Opis:
    Research background: The trade sector is considered to be the power of economy, in developing countries in particular. With regard to the Czech Republic, this field of the national economy constitutes the second most significant employer and, at the same time, the second most significant contributor to GNP. Apart from traditional methods of business analyzing and identifying leaders, artificial neural networks are widely used. These networks have become more popular in the field of economy, although their potential has yet to be fully exploited. Purpose of the article: The aim of this article is to analyze the trade sector in the Czech Republic using Kohonen networks and to identify the leaders in this field. Methods: The data set consists of complete financial statements of 11,604 enterprises that engaged in trade activities in the Czech Republic in 2016. The data set is subjected to cluster analysis using Kohonen networks. Individual clusters are subjected to the analysis of absolute indicators and return on equity which, apart from other, shows a special attraction of individual clusters to potential investors. Average and absolute quantities of individual clusters are also analyzed, which means that the most successful clusters of enterprises in the trade sector are indicated. Findings & Value added: The results show that a relatively small group of enter-prises enormously influences the development of the trade sector, including the whole economy. The results of analyzing 319 enterprises showed that it is possible to predict the future development of the trade sector. Nevertheless, it is also evident that the trade sector did not go well in 2016, which means that investments of owners are minimal.
    Źródło:
    Equilibrium. Quarterly Journal of Economics and Economic Policy; 2019, 14, 4; 739-761
    1689-765X
    2353-3293
    Pojawia się w:
    Equilibrium. Quarterly Journal of Economics and Economic Policy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    50 percentile dummy movement analysis using TEMA Automotive software
    Autorzy:
    Podosek, Krzysztof
    Frej, Damian
    Górniak, Aleksander
    Nica, Elvira
    Powiązania:
    https://bibliotekanauki.pl/articles/2134945.pdf
    Data publikacji:
    2022
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    safety
    dummy
    TEMA Automotive
    MSC Adams
    Opis:
    The dynamic loads acting on passengers during road accidents depend not only on the vehicle structure, but also on the properties of the applied passenger and driver protection system. Two-point seat belts are the most frequently used personal protection system for adult passengers in bus vehicles. The paper investigates the thread of dynamic loads acting on the body of a 50 percentile dummy placed in an armchair equipped with two-point seat belts. In order to solve this problem, tests recorded with the Phantom v310 camera were used, the object of which was the Hybrid II 50th dummy, and the recording of the tests was carried out for three different collision speeds. The article presents the results of the crash tests obtained with the use of the TEMA Automotive program. Crash test analysis showing the displacement of the head and upper torso of the dummy located in the limited space between the bus-type seats indicates that standard seat belts do not provide sufficient protection. The article indicates the basis for further research and improvement of the personal protection system of passengers transported in minibuses and buses.
    Źródło:
    Archiwum Motoryzacji; 2022, 97, 3; 25--48
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Artificial intelligence-based predictive maintenance, time-sensitive networking, and big data-driven algorithmic decision-making in the economics of Industrial Internet of Things
    Autorzy:
    Kliestik, Tomas
    Nica, Elvira
    Durana, Pavol
    Popescu, Gheorghe H.
    Powiązania:
    https://bibliotekanauki.pl/articles/39987975.pdf
    Data publikacji:
    2023
    Wydawca:
    Instytut Badań Gospodarczych
    Tematy:
    artificial intelligence (AI)
    predictive maintenance (PM)
    Industrial Internet of Things (IIoT)
    time-sensitive networking (TSN)
    big data
    algorithmic decision-making
    Opis:
    Research background: The article explores the integration of Artificial Intelligence (AI) in predictive maintenance (PM) within Industrial Internet of Things (IIoT) context. It addresses the increasing importance of leveraging advanced technologies to enhance maintenance practices in industrial settings. Purpose of the article: The primary objective of the article is to investigate and demonstrate the application of AI-driven PM in the IIoT. The authors aim to shed light on the potential benefits and implications of incorporating AI into maintenance strategies within industrial environments. Methods: The article employs a research methodology focused on the practical implementation of AI algorithms for PM. It involves the analysis of data from sensors and other sources within the IIoT ecosystem to present predictive models. The methods used in the study contribute to understanding the feasibility and effectiveness of AI-driven PM solutions. Findings & value added: The article presents significant findings regarding the impact of AI-driven PM on industrial operations. It discusses how the implementation of AI technologies contributes to increased efficiency. The added value of the research lies in providing insights into the transformative potential of AI within the IIoT for optimizing maintenance practices and improving overall industrial performance.
    Źródło:
    Oeconomia Copernicana; 2023, 14, 4; 1097-1138
    2083-1277
    Pojawia się w:
    Oeconomia Copernicana
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Advanced methods of earnings management: monotonic trends and change-points under spotlight in the Visegrad countries
    Autorzy:
    Kliestik, Tomas
    Valaskova, Katarina
    Nica, Elvira
    Kovacova, Maria
    Lazaroiu, George
    Powiązania:
    https://bibliotekanauki.pl/articles/19233520.pdf
    Data publikacji:
    2020
    Wydawca:
    Instytut Badań Gospodarczych
    Tematy:
    business finance
    change-point
    earnings management
    monotonic trend
    European countries
    Opis:
    Research background: Enterprises manage earnings in an effort to balance their profit fluctuations to provide increasingly consistent earnings in every reporting period. Earnings management is legal and very effective method of accounting techniques and may be used to obtain specific objectives of the enterprises involving the manipulation of accruals. Therefore, there is a need to analyze it in the context of group of countries, while the issue of their detection in the new ways appears.  Purpose of the article: The analysis of annual earnings before interest and taxes (EBIT) of 5,640 enterprises from the Visegrad Four during the period 2009-2018 confirms that the development of earnings management in these countries is not a randomness. Thus, the aim of this article is to determine the existence of positive trend in earnings management and to detect the change-point in its development for each Visegrad country. Methods: Grubbs test, Mann-Kendall trend test and Buishand test were used as appropriate statistical methods. Mann-Kendall test identifies significant monotonic trend occurrence in earnings manipulation in every country. Buishand test indicates significant years, which divides the development of EBIT into two homogenous groups with individual central lines. Findings & Value added: Based on the statistical analysis applied, we rejected randomness in the managing of earning, but we determined the trend of its increasing. The positive earnings manipulation was not homogenous in the analyzed period, however, a change-point was defined. Year 2014 was identified as a break-point for Slovak, Polish and Hungarian enterprises considering the earnings manipulation. Year 2013 was detected as a change-point in Czech enterprises. The methodical approach used may be very helpful for researchers from other countries to determine, detect and understand earnings management as well as for the investors to make decisions based on a specificities of an individual country.
    Źródło:
    Oeconomia Copernicana; 2020, 11, 2; 371-400
    2083-1277
    Pojawia się w:
    Oeconomia Copernicana
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Quo vadis brand loyalty? : comparative study of perceived brand value sources
    Dokąd zmierza lojalność marki? : badanie porównawcze źródeł postrzegania wartości marki
    Autorzy:
    Kliestikova, Jana
    Kovacova, Maria
    Krizanova, Anna
    Durana, Pavol
    Nica, Elvira
    Powiązania:
    https://bibliotekanauki.pl/articles/406095.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Częstochowska
    Tematy:
    brand
    branding
    brand value
    loyalty
    psychographic specifics
    marka
    wartość marki
    lojalność
    specyfika psychograficzna
    Opis:
    It has been proved by market reality that traditional brand management theories fail. Based on this, there is a need to provide critical revision of these theories with emphasis on behavioural approach of consumers. The most important is the task of consumer loyalty and its transposition into subjectively perceived brand value sources. So, the aim of this paper is to identify relevant brand value sources of loyalty which are significant for Slovak socio-cultural profile and to propose an effective innovative model of branding. The statistical evaluation of the data obtained from own questionnaire survey has been provided by the factor analysis supported by relevant tests. It has been found out that the fact of loyal relationship with brand affects the priority of the components of subjectively perceived brand value sources. The importance of brand value sources in case of consumer loyalty has been identified as following: 1) benefits; 2) attributes; 3) imageries and 4) attitudes while in case of consumer loyalty absence, the importance of brand value source is: 1) imageries; 2) attitudes; 3) benefits and 4) attributes. So, it can be concluded that existence of different brand value sources ranking in case of existence vs. absence of brand loyalty indicates need of selective approach towards brand value sources in the phase of brand value building and brand value managing. By doing this, traditional monistic concept of brand value building and managing has been interfered.
    Zostało udowodnione przez rzeczywistość rynkową, że tradycyjne teorie zarządzania marką zawodzą. Na tej podstawie istnieje potrzeba zapewnienia krytycznej rewizji tych teorii z naciskiem na podejście behawioralne konsumentów. Najważniejszym jest zadanie transpozycji lojalności konsumentów na subiektywnie postrzegane źródeł wartości marki. Celem tego artykułu jest więc zidentyfikowanie odpowiednich źródeł lojalności wartości marki, które są istotne dla słowackiego profilu społeczno-kulturowego oraz zaproponowanie skutecznego innowacyjnego modelu brandingu. Ocenę statystyczną danych uzyskanych z własnych badań ankietowych dostarczyła analiza czynnikowa wsparta odpowiednimi testami. Stwierdzono, że fakt lojalnych relacji z marką wpływa na priorytet komponentów subiektywnie postrzeganych źródeł wartości marki. Znaczenie źródeł wartości marki w przypadku lojalności konsumentów zostało określone jako następujące: 1) korzyści; 2) atrybuty; 3) wyobrażenia i 4) postawy, podczas gdy w przypadku braku lojalności konsumentów, znaczenie źródła wartości marki to: 1) wyobrażenia; 2) postawy; 3) korzyści i 4) atrybuty. Można, zatem stwierdzić, że istnienie różnych rankingów źródeł wartości marki w przypadku istnienia przeciwieństwa braku lojalności wobec marki wskazuje na potrzebę selektywnego podejścia do źródeł wartości marki w fazie budowania wartości marki i zarządzania wartością marki. W ten sposób została zakłócona tradycyjna monistyczna koncepcja budowania wartości marki i zarządzania nią.
    Źródło:
    Polish Journal of Management Studies; 2019, 19, 1; 190-203
    2081-7452
    Pojawia się w:
    Polish Journal of Management Studies
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Road freight transport driver fatique test: A pilot study
    Autorzy:
    Poliak, Miloš
    Beňuš, Ján
    Hajduk, Iwona Ewa
    Demirci, Ebru
    Nica, Elvira
    Powiązania:
    https://bibliotekanauki.pl/articles/24200867.pdf
    Data publikacji:
    2023
    Wydawca:
    Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
    Tematy:
    vehicle
    technical inspection
    traffic safety
    vehicles
    road transport
    Opis:
    Road freight transport is one of the main modes of transporting goods in the European Union. This reality puts pressure on carriers to make every transport of goods fast, safe, cheap, and efficient. Based on these requirements, lorry drivers are often forced by their employers to break the current social legislation in the European Union and the rules of the road. Compared to the current social legislation in force in different parts of the world, the European Union rules on driving times, breaks and rest periods for drivers engaged in road haulage and passenger transport are the strictest. An important factor and reason of serious and fatal traffic accidents, extensive damage to goods or property in road freight transport is a driver. This article presents three different types of experiments that were carried out, and the results may help to improve the current situation. The main aim of this study was to verify whether the actual regulations are safe and suitable and compare the results of daily work of professional drivers in two different measurements. Last measurement was conducted with using Eye-tacking technology, which aimed to verify impact of experiences on the reaction times of drivers. The authors believe that the results of individual measurements can contribute to increasing safety in road freight transport with preparing future extended studies and proposing the possible changes of current regulation.
    Źródło:
    Archiwum Motoryzacji; 2023, 101, 3; 67--85
    1234-754X
    2084-476X
    Pojawia się w:
    Archiwum Motoryzacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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