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    Wyświetlanie 1-3 z 3
    Tytuł:
    Content Repository in Object Oriented data model
    Autorzy:
    Dobrowolski, D.
    Chromiak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/106182.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
    Tematy:
    content repository
    e-learning
    classification of e-learning content
    standards
    content management
    prospective object-oriented database
    Opis:
    The need for creating content repository stores for e-learning systems grows as the number of available materials increases. Moreover, along with the number of courses, the problem of describing them in a unified form appears. While there are standards used for strict classification of e-learning content, the store model still seems to be based on preservative relational databases approach. In this paper we introduce an idea to represent the e-learning content management information in the well organized object-oriented form based on a prospective object-oriented database.
    Źródło:
    Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2013, 13, 1; 17-27
    1732-1360
    2083-3628
    Pojawia się w:
    Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of Tools for Creating Maps of Knowledge in Teaching Materials Science to Students of University of Life Sciences
    Autorzy:
    Krzywicka, M.
    Dobrowolski, D.
    Grudziński, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/106202.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
    Tematy:
    knowledge map
    knowledge management
    e-learning
    Opis:
    Modern distance education systems allow for teaching any subject. However, conducting classes strictly dened by a system of educational cycle, does not always allow for selecting individual learning paths based on knowledge already possessed by the student. Knowledge maps can navigate the content of subject taught by well-dened paths of learning, the course of which may be determined by the student. The article presents an example of using knowledge maps created in the InfoRapid KnowledgeMap system and the results of preliminary studies on the use of training software in English based on maps of knowledge for teaching students of Materials Engineering.
    Źródło:
    Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2015, 15, 1; 16-20
    1732-1360
    2083-3628
    Pojawia się w:
    Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Potential landslide hazard in a zone of stabilised earthen embankments illustrated by Wysoka Gorka in Chełm
    Autorzy:
    Demczuk, P.
    Zydron, T.
    Dobrowolski, R.
    Dzieńkowski, T.
    Słuch, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/905260.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
    Opis:
    Plant cover is an important element in the management of earthen structures and slopes improving their aesthetic values and limiting their vulnerability to denudation processes. With regard to landslide hazards, an important aspect in the presence of plants is the effect of their root systems on the shear strength of the substrate and, consequently, on slope stability. The aim of the study was to determine the impact of the tree cover at the Wysoka Górka archaeological site on the stability of the earthen embankment on Góra Katedralna in Chełm (Lublin Province). These architectural elements originate from the times of Chełm’s glory in the first half of the 13th century, when it became the capital of Halych-Volhynia Duchy and a residence of Prince Danylo Romanovych (Isaiecić 1999). The research involved identification of the geological structure of the embankment (surveying, measurement of the filtration coefficient) and laboratory determination of the geotechnical parameters of the soil (particle size distribution and soil compressive strength measured in a triaxial compression apparatus). In the next stage of the study, stability was calculated with limit equilibrium methods in the GeoStudio program. Standard calculations of the embankment stability were performed and the stability coefficient for the slope devoid of vegetation and the tree-covered slope were compared assuming zero suction pressure. The shear strength parameters of soil reinforced by plant roots were adopted following the recommendations specified by Hubble et al. (2013). The authors performed a probabilistic analysis in order to determine the probability of critical values of the safety factor (<1.0) and comparative stability calculations, taking into account hydrological effects for the tree-covered and tree-devoid (after felling the trees) embankments (Sonnenberg et al. 2010, Simon and Collison 2002). The results of the stability calculations demonstrated that the presence of viable plant roots in the substrate increased slope stability, and the presence of tree stands at the bottom of the embankment appeared to be more favourable. Modelling the slope stability with consideration of the effect of atmospheric factors has shown that the presence of woody vegetation contributed to increased water infiltration into the embankment, resulting in reduction of suction pressure. In turn, tree felling led to reduction in suction pressure due to inhibition of evapotranspiration.
    Źródło:
    Polish Journal of Soil Science; 2018, 51, 1
    0079-2985
    Pojawia się w:
    Polish Journal of Soil Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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