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Wyszukujesz frazę "Gallego, J." wg kryterium: Autor

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Deep learning for damaged tissue detection and segmentation in Ki-67 brain tumor specimens based on the U-net model
    Autorzy:
    Swiderska-Chadaj, Z.
    Markiewicz, T.
    Gallego, J.
    Bueno, G.
    Grala, B.
    Lorent, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/202412.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    damaged tissue regions detection
    artifacts detection
    deep learning
    Ki-67 staining specimens
    wykrywanie uszkodzonych regionów tkankowych
    wykrywanie artefaktów
    artefakt
    uczenie głębokie
    próbki barwiące Ki-67
    Opis:
    The pathologists follow a systematic and partially manual process to obtain histological tissue sections from the biological tissue extracted from patients. This process is far from being perfect and can introduce some errors in the quality of the tissue sections (distortions, deformations, folds and tissue breaks). In this paper, we propose a deep learning (DL) method for the detection and segmentation of these damaged regions in whole slide images (WSIs). The proposed technique is based on convolutional neural networks (CNNs) and uses the U-net model to achieve the pixel-wise segmentation of these unwanted regions. The results obtained show that this technique yields satisfactory results and can be applied as a pre-processing step for automatic WSI analysis in order to prevent the use of the damaged areas in the evaluation processes.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2018, 66, 6; 849-856
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Discrimination of Acoustic Emission Signals for Damage Assessment in a Reinforced Concrete Slab Subjected to Seismic Simulations
    Autorzy:
    Sagasta, F. A.
    Torné, J. L.
    Sánchez-Parejo, A.
    Gallego, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/177863.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    acoustic emission
    structural health monitoring
    reinforced concrete structures
    signal processing
    Opis:
    The purpose of this work is to distinguish between Acoustic Emission (AE) signals coming from mechanical friction and AE signals coming from concrete cracking, recorded during fourteen seismic simulations conducted with the shaking table of the University of Granada on a reinforced concrete slab supported on four steel columns. To this end, a particular criterion is established based on the Root Mean Square of the AE waveforms calculated in two different temporal windows. This criterion includes a parameter calculated by optimizing the correlation between the mechanical energy dissipated by the specimen (calculated by means of measurements with accelerometers and displacement transducers) and the energy obtained from the AE signals recorded by low-frequency piezoelectric sensors located on the specimen. The final goal of this project, initiated four years ago, is to provide a reliable evaluation of the level of damage of Reinforced Concrete specimens by means of AE signals to be used in future Structural Health Monitoring strategies involving RC structures.
    Źródło:
    Archives of Acoustics; 2013, 38, 3; 303-310
    0137-5075
    Pojawia się w:
    Archives of Acoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Big Data Techniques to Study the Impact of Gender-Based Violence in the Spanish News Media
    Autorzy:
    Bello, Hugo J.
    Palomar-Ciria, Nora
    Gallego, Elisa
    Jiménez Navascués, Lourdes
    Lozano, Celia
    Powiązania:
    https://bibliotekanauki.pl/articles/16648183.pdf
    Data publikacji:
    2023-10-17
    Wydawca:
    Polskie Towarzystwo Komunikacji Społecznej
    Tematy:
    big data
    domestic violence
    gender-based violence
    media
    news
    Opis:
    Despite being an underreported topic in the news media, gender-based violence (GBV) undermines the health, dignity, security and autonomy of its victims. Research has studied many of the factors that generate or maintain this kind of violence. However, the influence of the media is still uncertain. This paper used Big Data techniques to explore how GBV is depicted and reported in digital news media. By feeding neural networks with news, the topic information associated with each article can be recovered. Our findings show a relationship between GBV news and public awareness, the effect of well-known GBV cases, and the intrinsic thematic relationship of GBV news with justice themes.
    Źródło:
    Central European Journal of Communication; 2023, 16, 1(33); 101-116
    1899-5101
    Pojawia się w:
    Central European Journal of Communication
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of mechanical properties for wood pellets used in DEM simulations
    Autorzy:
    Gallego, E.
    Fuentes, J.M.
    Ruiz, A.
    Hernandez-Rodrigo, G.
    Aguado, P.
    Ayuga, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082921.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    biomass
    wood pellets
    mechanical properties
    discrete element method
    Opis:
    Wood pellets are increasingly being used to produce energy as a part of the decarbonization process of the economy, but their handling is associated with several problems, which usually requires that the equipment used has to be modified and improved. The discrete element method is a numerical technique suitable for simulating individual particles and handling systems. This paper focuses on the determination of the mechanical and physical parameters for wood pellet particles which are required to develop a discrete element method model to improve handling and transport systems. This study reports the experimentally determined values for wood pellet particles with respect to particle density, modulus of elasticity, particle – particle and particle – wall coefficients of restitution, and particle – particle and particle – wall coefficients of friction. Following the previous findings by other researchers with large samples of bulk material, it has been found that the modulus of elasticity for individual wood pellets depends on the water content, and the particle – wall coefficient of restitution depends on the impact velocity.
    Źródło:
    International Agrophysics; 2020, 34, 4; 485-494
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Linking Traits and Personal Constructs: An Exploratory Study throughout Levels of Personality
    Autorzy:
    Martínez, Jesús García
    Cano-García, Francisco J.
    Rodríguez-Franco, Luis
    Buero-Gallego, Milagros
    Alcocer-Gómez, Elísabet
    Guerrero-Gómez, Rafael
    Powiązania:
    https://bibliotekanauki.pl/articles/2128612.pdf
    Data publikacji:
    2019-03-28
    Wydawca:
    Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
    Tematy:
    Personality
    Levels of Personality
    Traits
    Personal Constructs
    Big Five Model
    Repertory Grid Technique
    McAdams’ Model
    Implicative Dilemmas
    Opis:
    This article presents a preliminary study of links between personal constructs and traits. The conceptual framework for this study is the domains of personality model postulated by McAdams (1995) and McAdams & Pals (2006), and we tried to find concomitances between variables of two different levels, the dispositional level and the identity level. A repertory grid and the NEOFFI inventory were distributed to a total of 273 individuals, 146 representing the general population, and 137 having pathologies. By applying an exploratory design ex post facto in which Pearson’s correlations and ANOVAs were used, we found associations between the content of the constructs used and the traits. The neuroticism trait was most closely related to the content of the constructs. There were also clear associations between construct structure and scores on traits. Neurotic subjects were more rigid, whereas agreeable and conscientious subjects were more complex. However, the type of sample (normal or pathological) is a basic modulator of the relationships between constructs and traits.
    Łączenie cech i konstruktów osobistych. Eksploracyjne studium poziomów osobowości This article presents a preliminary study of links between personal constructs and traits. The conceptual framework for this study is the domains of personality model postulated by McAdams (1995) and McAdams & Pals (2006), and we tried to find concomitances between variables of two different levels, the dispositional level and the identity level. A repertory grid and the NEOFFI inventory were distributed to a total of 273 individuals, 146 representing the general population, and 137 having pathologies. By applying an exploratory design ex post facto in which Pearson’s correlations and ANOVAs were used, we found associations between the content of the constructs used and the traits. The neuroticism trait was most closely related to the content of the constructs. There were also clear associations between construct structure and scores on traits. Neurotic subjects were more rigid, whereas agreeable and conscientious subjects were more complex. However, the type of sample (normal or pathological) is a basic modulator of the relationships between constructs and traits.
    Źródło:
    Roczniki Psychologiczne; 2009, 12, 1; 57-80
    1507-7888
    Pojawia się w:
    Roczniki Psychologiczne
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Approach to selection of sterilization method for biodegradable polymeric medical device
    Autorzy:
    Wach, R. A.
    Mozalewska, W.
    Olejnik, A. K.
    Adamus, A.
    Gallego, M. R.
    Vange, J.
    Bosman, A. W.
    Mes, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/285916.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    medical devices
    sterilization
    biodegradable polymers
    Źródło:
    Engineering of Biomaterials; 2016, 19, 138; 63
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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