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Wyszukujesz frazę "Górecki, K." wg kryterium: Autor

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Modelling the influence of self-heating on characteristics of IGBTs in the sub-threshold region
    Autorzy:
    Górecki, K.
    Górecki, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/397748.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
    Tematy:
    IGBT
    electrothermal model
    self-heating
    SPICE
    model elektrotermiczny
    samonagrzewanie
    Opis:
    The paper refers to modelling characteristics of IGBT in SPICE software with self-heating taken into account. The form of the electrothermal model of the considered transistor and equations describing this model are proposed. The correctness of the proposed model is verified experimentally during the operation of the examined transistor at different cooling conditions. Particular attention is paid to the non-typical course of characteristics of the considered device at weak excitation. The shape of the obtained characteristics is discussed and the influence of the sub-threshold effect in the input MOS structure on these characteristics is analysed.
    Źródło:
    International Journal of Microelectronics and Computer Science; 2014, 5, 4; 149-154
    2080-8755
    2353-9607
    Pojawia się w:
    International Journal of Microelectronics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Thermal Phenomena on dc Characteristics of the IGBT
    Autorzy:
    Górecki, P.
    Górecki, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/227059.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    IGBT
    thermal phenomena
    measurements
    DC characteristics
    sub-threshold region
    Opis:
    The paper concerns the study of the effect of thermal phenomena on characteristics of the IGBT. The used measurement set-ups and the results of measurements of dc characteristics of the selected transistor obtained under different cooling conditions are presented. The influence of the ambient temperature and the applied cooling system on the shape of these characteristics is discussed. In particular, attention has been paid to the untypical shape of non-isothermal characteristics of this element in the subthreshold range.
    Źródło:
    International Journal of Electronics and Telecommunications; 2018, 64, 1; 71-76
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Analysis Of Accuracy Of Selected Methods Of Measuring The Thermal Resistance Of IGBTs
    Autorzy:
    Górecki, K.
    Górecki, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/220969.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    IGBT
    thermal resistance
    measurements
    transistor
    semiconductor devices
    Opis:
    In the paper selected methods of measuring the thermal resistance of an IGBT (Insulated Gate Bipolar Transistor) are presented and the accuracy of these methods is analysed. The analysis of the measurement error is performed and operating conditions of the considered device, at which each measurement method assures the least measuring error, are pointed out. Theoretical considerations are illustrated with some results of measurements and calculations.
    Źródło:
    Metrology and Measurement Systems; 2015, 22, 3; 455-464
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Categorization of Similar Objects Using Bag of Visual Words and k - Nearest Neighbour Classifier
    Autorzy:
    Artiemjew, P.
    Górecki, P.
    Sopyła, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/298103.pdf
    Data publikacji:
    2012
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie
    Tematy:
    kategoryzacja obrazu
    metoda k najbliższych sąsiadów
    zbiór słów wizualnych
    Image categorization
    k-Nearest Neighbor Classifier
    Bag of Visual Words
    Opis:
    Image categorization is one of the fundamental tasks in computer vision, it has wide application in methods of artificial intelligence, robotic vision and many others. There are a lot of difficulties in computer vision to overcome, one of them appears during image recognition and classification. The difficulty arises from an image variance, which may be caused by scaling, rotation, changes in a perspective, illumination levels, or partial occlusions. Due to these reasons, the main task is to represent represent images in such way that would allow recognizing them even if they have been modified. Bag of Visual Words (BoVW) approach, which allows for describing local characteristic features of images, has recently gained much attention in the computer vision community. In this article we have presented the results of image classification with the use of BoVW and k - Nearest Neighbor classifier with different kinds of metrics and similarity measures. Additionally, the results of k - NN classification are compared with the ones obtained from a Support Vector Machine classifier.
    Źródło:
    Technical Sciences / University of Warmia and Mazury in Olsztyn; 2012, 15(2); 293-305
    1505-4675
    2083-4527
    Pojawia się w:
    Technical Sciences / University of Warmia and Mazury in Olsztyn
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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