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    Wyświetlanie 1-4 z 4
    Tytuł:
    Probability Function Estimation for the Maximum Precipitation Model Using Kernel Estimators
    Autorzy:
    Karczewski, Maciej
    Kaźmierczak, Bartosz
    Michalski, Andrzej
    Kuchar, Leszek
    Powiązania:
    https://bibliotekanauki.pl/articles/2174916.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Koszalińska. Wydawnictwo Uczelniane
    Tematy:
    maximum precipitation
    kernel estimation
    hydrology
    Opis:
    The distribution of maximum rainfall level is not a homogeneous phenomenon and is often characterised by multimodality and often the phenomenon of the heavy right-hand tail. Modelling this phenomenon using classic probability distributions leads to ignoring multimodality, thus underestimating or overestimating the predicted values in the tail tails – the most important from the point of view of safe dimensioning of drainage systems. To avoid the difficulties mentioned above, a non-parametric kernel estimator method of maximum precipitation density function was used (in the example of rainfall data from a selected station in Poland). The methodology proposed in the paper (for use on any rainfall data from other meteorological stations) will allow the development of more reliable local models of maximum precipitation.
    Źródło:
    Rocznik Ochrona Środowiska; 2022, 24; 260--275
    1506-218X
    Pojawia się w:
    Rocznik Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Benign paroxysmal vertigo of childhood
    Autorzy:
    Mierzwiński, Józef
    Polak, Maciej
    Dalke, Krzysztof
    Burduk, Paweł
    Kaźmierczak, Henryk
    Modrzyński, Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/1398846.pdf
    Data publikacji:
    2007
    Wydawca:
    Index Copernicus International
    Tematy:
    vertigo
    dizziness
    migraine
    spasmodic torticollis
    ENG
    Opis:
    Objective. To relate the authors’ experience to the diagnosis and follow-up of patients with benign paroxysmal vertigo of childhood (BPV) who were followed-up at the Children’s Hospital of Bydgoszcz between 1999 and 2004, and to review and discuss controversial issues regarding the disease. Methods. Among 124 children suffering from vertigo 14 were classified as having BPV. All the children were submitted to differential diagnosis protocol which consisted of meticulous history, otolaryngological, ophthalmological, psychological, neurological examination, biochemical tests and standard neurootological examination including caloric tests. The children were followed-up and the tests were repeated if no improvement was observed. Results. All the children suffered from episodic vertigo of variable intensity and frequency. All of them were neurologically intact. In 8 patients pathologic ENG results were found, only 1 patient with canal paresis could be considered as having peripheral lesion, 7 patients had central/mixed pathology. The follow-up was favorable in majority of patients. Six of them recovered completely, in 6 an improvement was noted and in 2 no improvement was observed. Three patients after remission of BPV attacks developed migraine. One child before development of BPV attacks suffered from paroxysmal torticollis of infancy. Conclusions. Childhood BPV is a disorder of vestibular system with the onset occurring mainly in preschoolers aged 1–7. Older children with the onset of BPV - like symptoms should be suspected for functional background of the disease. There are no typical ENG features for BPV. The only objective evidence of vestibular dysfunction is the presence of nystagmus during the attack. The disease is probably of vascular origin and there is strong evidence for close relationship between spasmodic torticollis, BPV and migraine.
    Źródło:
    Polish Journal of Otolaryngology; 2007, 61, 3; 307-310
    0030-6657
    2300-8423
    Pojawia się w:
    Polish Journal of Otolaryngology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Developing the Cognitive Abilities of Elderly People with the Use of IT Technologies: Presentation of the Project Assumptions and Description of the Research Concept
    Autorzy:
    Kaźmierczak, Jan
    Bartnicka, Joanna
    Borgosz, Gabriela
    Ikem, Benjamin
    Jurasik, Julia
    Kręt, Paulina
    Pietrulińska, Natalia
    Radomski, Maciej
    Powiązania:
    https://bibliotekanauki.pl/articles/2064883.pdf
    Data publikacji:
    2020
    Wydawca:
    STE GROUP
    Tematy:
    Internet
    COVID-19
    society
    seniors
    exclusion
    Opis:
    The progress of digitization and the development of new technologies undoubtedly bring many benefits. However, they can also create or deepen problems related to the social exclusion of certain groups of people, such as the elderly, for whom modern technology is still largely unavailable, and even arouses a sense of uncertainty and fear (the so-called technophobia). The consequences of such a phenomenon become particularly evident in the situation of social isolation, whose unprecedented dimension is currently observed in the so-called COVID-19 pandemic era. In particular, the occurrence of the phenomenon of social exclusion combined with a pandemic situation has contributed to the development of the assumptions of the project entitled “Developing the cognitive capabilities of older people through information technology.” This project was developed by the INNOVATOR Student Science Club at the Faculty of Organization and Management of the Silesian University of Technology, and its goal is to develop a tool to support the acquisition of competences by seniors in the field of technological content, operation of electronic devices and the implementation of daily and routine activities using the Internet, e.g. shopping via the Internet or using tele advice services. The proposed tool is also to support the stimulation of the development of cognitive abilities of seniors using e.g. logical games. In the course of project implementation, a survey will be conducted in selected Nursing Homes, Retirement Homes, online forums for the elderly and through direct contact, the results of which will allow to learn the needs and possibilities of developing the abilities of the examined people, and assess the effectiveness of the designed tool in the process of transferring content and shaping competences. An element encouraging seniors to participate in the planned research will be their active participation in lectures and/or talks, workshops and discussions. The assumed result of the project will be to reduce the negative effects of isolation of seniors, improve their communication with their loved ones and reduce the generation gap. A complementary research task will be to develop a way to assess project results in qualitative and, where possible, quantitative dimensions.
    Źródło:
    Multidisciplinary Aspects of Production Engineering; 2020, 3, 1; 505--516
    2545-2827
    Pojawia się w:
    Multidisciplinary Aspects of Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficient, low-cost optical coupling mechanism for TiO2-SiO2 sol-gel derived slab waveguide surface grating coupler sensors
    Autorzy:
    Kaźmierczak, Andrzej
    Słowikowski, Mateusz
    Pavłov, Krystian
    Filipiak, Maciej
    Vervaeke, Michael
    Tyszkiewicz, Cuma
    Ottevaere, Heidi
    Piramidowicz, Ryszard
    Karasiński, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/1835968.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    polymer microlens
    optical coupling
    surface grating coupler
    Opis:
    We present an optical signal coupling scheme for slab waveguide surface grating coupler sensors. The proposed solution is based on the use of polymer microlenses. In this work we analyze two types of compact polymer lenses: the aspheric plano-convex lenses and Fresnel lenses. The feasibility of the proposed scheme is demonstrated by the experimental investigation into the optical signal coupling to the test structure of TiO2-SiO2 slab waveguide surface grating coupler using both types of lenses.
    Źródło:
    Optica Applicata; 2020, 50, 4; 539-549
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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