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    Wyświetlanie 1-5 z 5
    Tytuł:
    Euro-Asian co-operation in rail education and research
    Евро-Азиатское сотрудничество в области железнодорожного образования и науки
    Autorzy:
    Tsykhmistro, S
    Cheptsov, A.
    Cheklov, V.
    Marinov, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/375226.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    rail education
    clusters
    Euro-Asian training programmes
    international cooperations
    edukacja kolejowa
    klastry
    program szkoleniowy Euro-Asian
    międzynarodowe kooperacje
    Opis:
    In this paper, rail education and research – focused initiatives, approaches, policies and practices are presented. Needs for integrating rail education and research in EU and Asia are identified and discussed. The SWOT-analysis conducted suggested that it would be of interest to set up a Euro-Asia cluster, which shall be focused on rail education and research to promote rail transport between both continents through cooperations, training and knowledge exchange.
    В статье представлены подходы, политические иннициативы и практика развития железнодорожного образования и науки. Проведен SWOT- анализ необходимости интеграции железнодорожных научных и образовательных потенциалов Европы и Азии. Предложена модель формирования Евро-Азиатского кластера железнодорожного образования и науки с целью развития высокоскоростного железнодорожного сообщения между двумя континентами.
    Źródło:
    Transport Problems; 2014, 9, 1; 103-110
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Molecular indicators for coal-forming palaeoplant community. "Katrishte" Coal deposit
    Autorzy:
    Stefanova, M.
    Markova, K.
    Marinov, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1204892.pdf
    Data publikacji:
    2002
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    coal
    organic geochemistry
    biomarker assemblage
    Opis:
    Coal deposit "Katrishte" located in south-western Bulgaria, Ro = 0.34%, was subjected to geochemical study. By chromatographic and spectral methods, a variety of coal biomarkers in bitumen extract has been revealed. n-Alkane distribution pattern indicated at least two possible sources, lacustrine and terrestrial ones. The aliphatic fraction was strongly dominated by 16a(H)-kaurane and 16a(H)-phyllocladane, a proof for the presence of Pinales in coal-forming palaeoplant community. The kaurane prevalence over phyllocladane could indicate the herbaceous flowering plant contribution. The combination of sesquiterpenoids/diterpenoids pointed to Pinaceae and Araucariceae.As a biomarker assemblage peculiarity, the lack of isoprenoids, tricyclic diterpenoids, and pentacyclic triterpenoids could be indicated.Our data gave us ground to assume existence of bush moor with the presence of herbaceous flowering plants, and subordinate contributions of conifers and sedge-reeds to coal forming plant taxa of "Katrishte"
    Źródło:
    Polish Geological Institute Special Papers; 2002, 7; 245-252
    1507-9791
    Pojawia się w:
    Polish Geological Institute Special Papers
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparison of Time Warping Algorithms for Rail Vehicle Velocity Estimation in Low Speed Scenarios
    Autorzy:
    Hensel, S.
    Marinov, M. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/221440.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    velocity estimation
    cross-correlation
    dynamic programming
    eddy current sensors
    Opis:
    Precise measurement of rail vehicle velocities is an essential prerequisite for the implementation of modern train control systems and the improvement of transportation capacity and logistics. Novel eddy current sensor systems make it possible to estimate velocity by using cross-correlation techniques, which show a decline in precision in areas of high accelerations. This is due to signal distortions within the correlation interval. We propose to overcome these problems by employing algorithms from the field of dynamic programming. In this paper we evaluate the application of correlation optimized warping, an enhanced version of dynamic time warping algorithms, and compare it with the classical algorithm for estimating rail vehicle velocities in areas of high accelerations and decelerations.
    Źródło:
    Metrology and Measurement Systems; 2017, 24, 1; 161-173
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New evaluations of ant colony optimization start nodes
    Autorzy:
    Fidanova, S.
    Marinov, P.
    Atanassov, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/206546.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    combinatorial optimization
    ant algorithms
    start nodes evaluation
    semi random start
    Opis:
    Ant Colony Optimization (ACO) is a stochastic search method that mimics the social behavior of real ant colonies, managing to establish the shortest route to the feeding sources and back. Such algorithms have been developed to arrive at near-optimal solutions to large-scale optimization problems, for which traditional mathematical techniques may fail. In this paper, the semi-random start procedure is applied. A new kind of evaluation of start nodes of the ants is developed and several starting strategies are prepared and combined. The idea of semi-random start is related to a better management of the ants. This new technique is tested on the Multiple Knapsack Problem (MKP). A Comparison among the strategies applied is presented in terms of quality of the results. A comparison is also carried out between the new evaluation and the existing one. Based on this comparative analysis, the performance of the algorithm is discussed. The study presents the idea that should be beneficial to both practitioners and researchers involved in solving optimization problems.
    Źródło:
    Control and Cybernetics; 2014, 43, 3; 471-485
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Relation between the petrographic and chemical properties of weakly reduced and reduced coals of donets basin
    Autorzy:
    Butuzova, L.
    Marinov, S.
    Matsenko, G.
    Skirtochenko, S.
    Turchanina, O.
    Isajeva, L.
    Krzton, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1204910.pdf
    Data publikacji:
    2002
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    coal
    vitrinite
    petrography
    Donets Basin
    Opis:
    Low-rank coals of the same rank level but of different genetic types and different tendency to self-ignition have been studied by means of coal chemistry. It has been shown that oxygen- and sulphur-containing functional groups, especially bridge-bonds, are responsible for the structure and properties of pyrolysis products.
    Źródło:
    Polish Geological Institute Special Papers; 2002, 7; 45-50
    1507-9791
    Pojawia się w:
    Polish Geological Institute Special Papers
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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