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    Wyświetlanie 1-14 z 14
    Tytuł:
    Hierarchical filtration for distributed linear multisensor systems
    Autorzy:
    Duda, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/229333.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    multisensor system
    distributed Kalman filtering
    decentralized filtration
    hierarchical fusion
    aggregated information
    Opis:
    In the paper two filtration algorithms for distributed multisensor system are presented. The first one is derived for a linear dynamical system composed of local subsystems described by local state equations. Local estimates are sent to a central station to be fused and formed an optimal global estimate. The second algorithm is derived for a system observed by local nodes that determine estimates of the whole system using local information and periodically aggregated information from other nodes. Periodically local estimates are sent to the central station to be fused. Owing to this a reduced communication can be achieved.
    Źródło:
    Archives of Control Sciences; 2012, 22, 4; 507-518
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    State estimation in a decentralized discrete time LQG control for a multisensor system
    Autorzy:
    Duda, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/964034.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    multisensor system
    LQG problem
    Kalman filter
    Opis:
    In the paper a state filtration in a decentralized discrete time Linear Quadratic Gaussian problem formulated for a multisensor system is considered. Local optimal control laws depend on global state estimates and are calculated by each node. In a classical centralized information pattern the global state estimators use measurements data from all nodes. In a decentralized system the global state estimates are computed at each node using local state estimates based on local measurements and values of previous controls, from other nodes. In the paper, contrary to this, the controls are not transmitted between nodes. It leads to nonconventional filtration because the controls from other nodes are treated as random variables for each node. The cost for the additional reduced transmission is an increased filter computation at each node.
    Źródło:
    Archives of Control Sciences; 2017, 27, 1; 29-39
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fusion Kalman filtration for distributed multisensor systems
    Autorzy:
    Duda, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/229236.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fusion Kalman filtration
    multisensor system
    one step delay information
    Opis:
    In the paper, fusion state hierarchical filtration for a multisensor system is considered. An optimal global Kalman filter is realized by a central node in the information form. The state estimate depends on local information that should be sent by local nodes. Two information structures are considered in the paper. In the first case local estimates are based on the local measurement information. It leads to distributed Kalman filter fusion that is well known in a literature. In the second case local node has additionally global information of the system with one step delay. A synthesis of local filters is presented. An advantage of this structure is discussed.
    Źródło:
    Archives of Control Sciences; 2014, 24, 1; 53-65
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fusion Kalman filtration with k-step delay sharing pattern
    Autorzy:
    Duda, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/229569.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fusion Kalman filtration
    multisensor system
    k− step delay sharing pattern
    Opis:
    A fusion hierarchical state filtration with k−step delay sharing pattern for a multisensor system is considered. A global state estimate depends on local state estimates determined by local nodes using local information. Local available information consists of local measurements and k−step delay global information - global estimate sent from a central node. Local estimates are transmitted to the central node to be fused. The synthesis of local and global filters is presented. It is shown that a fusion filtration with k−step delay sharing pattern is equivalent to the optimal centralized classical Kalman filtration when local measurements are transmitted to the center node and used to determine a global state estimate. It is proved that the k−step delay sharing pattern can reduce covariances of local state errors.
    Źródło:
    Archives of Control Sciences; 2015, 25, 3; 307-318
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of diazotrophic cyanobacteria in plants biomass production
    Autorzy:
    Pszczolkowska, A.
    Romanowska-Duda, Z.
    Grzesik, M.
    Pszczolkowski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/80296.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    diazotrophic cyanobacteria
    primary production
    photosynthesis
    Cyanoprokaryota
    plant biomass
    Anabaena
    Sida hermaphrodita
    energetic plant
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stimulation effect of Microcystis aeruginosa MKR 0105 on the metabolic activity and development of willow (Salix viminalis L.) plants
    Autorzy:
    Grzesik, M.
    Romanowska-Duda, Z.
    Pszczolkowska, A.
    Pszczolkowski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/80512.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    Microcystis aeruginosa
    Cyanoprokaryota
    metabolic activity
    willow
    Salix viminalis
    chlorophyll content
    leaf
    photosynthesis
    dehydrogenase activity
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Agrochemicals applicable in phytoextraction combined with plants biomass production
    Autorzy:
    Pszczolkowski, W.
    Romanowska-Duda, Z.
    Grzesik, M.
    Pszczolkowska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/81262.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    conference
    phytoextraction
    bioaccumulation factor
    plant
    biomass production
    energetic plant
    Salix viminalis
    heavy metal
    agrochemical
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Strategie oporu konsumenckiego - dezercja z rynku czy współpraca?
    Autorzy:
    Duda, Aneta
    Powiązania:
    https://bibliotekanauki.pl/articles/985809.pdf
    Data publikacji:
    2013-12-01
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    consumption capitalism protest
    konsumpcja
    kapitalizm
    kontestacja
    Opis:
    The author sets forth questions about the essence of consumption, the role of the market, and protest movements, while leaving aside overused arguments about the negative impact of consumption on civilization as a whole. She presents the most important critical understandings of consumer culture, and in particular, their strategies for resisting the dominant capitalist system. She argues that certain widely promulgated attempts at deconstruction, which are based on a ‘hegemonic’ consumer world view and announce the need to desert the market, are fairly outworn and conceptually problematic. In their place, she suggests forms of engaged participation in the market, linking consumerism with conscious, creative sufficiency and efficiency of action. Consumerism thus understood could strengthen individual freedom and broaden the extent of democratic liberties. As an accepted social logic, it could favour the creation of social ties and engagement in social life; its symbolic potential could be greater-on the principle that only engagement, rather than desertion, provides a true opportunity to influence conditions.
    Źródło:
    Kultura i Społeczeństwo; 2013, 57, 4; 49-68
    2300-195X
    Pojawia się w:
    Kultura i Społeczeństwo
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mechanical Properties of Graphene Oxide–Copper Composites
    Autorzy:
    Duda, P.
    Muzyka, R.
    Robak, Z.
    Kaptacz, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/351676.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    composites of copper
    graphene oxide
    surface microgeomety
    tribological properties
    Opis:
    Due to their characteristics, sintered Cu-C composites are materials used in electrical equipment. These characteristics include high electrical conductivity, thermal conductivity and excellent resistance to abrasion. Currently, graphite nanopowder is used successfully as a carbon material. Metal-graphite, which is created on its basis, exists in different proportions of graphite to metal. A larger graphite content has a positive effect on smaller wear of commutators and rings. In contrast, a material with a higher copper content is used at high current densities. An example of such machines is a DC motor starter characterized by low voltage and large current. Tribological properties of Cu-C composites depend on the form of carbon they include. Owing to the capability to manufacture graphene, it has become possible to produce composites with its content. The present study tested the effect of a graphene oxide content on tribological properties in contact with steel. Tests were conducted on a ball-on-disk apparatus in conditions of dry friction. Microscopic observation was performed on the Hitachi SU70 field emission electron microscope. EDS analyses were performed using the Thermo Scientific X-ray Microanalysis system. Disk wear and surface geometrical structure parameters (SGP) of the samples after tribological tests were determined on the basis of measurements made on the Talysurf 3D contact profilometer from Taylor Hobson.
    Źródło:
    Archives of Metallurgy and Materials; 2016, 61, 2A; 863-868
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Capabilities of Using Fem in Sheet-Metal Forming
    Autorzy:
    Korga, S.
    Duda, A.
    Ciekanowski, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/353683.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    FEM calculations
    modeling of plastic processing
    simulations
    sheet-metal forming
    metallographic study
    Opis:
    The aim of this study was to determine and select boundary conditions of modeling and FEM simulation for plastic processing on the example of sheet-metal forming. For sheet-metal deformation analysis, Deform 3D has been used. The study presents research methods for real and virtual conditions. There are also described common features and these differentiating obtained results. Research of conducted process of sheet-metal forming allows to determine the effectiveness of computer research methods. The finite-element method can be used as an effective tool for the study of plastic processing phenomena considering various operating conditions of individual elements provided the appropriate tools for FEM analysis.
    Źródło:
    Archives of Metallurgy and Materials; 2016, 61, 2B; 947-951
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impact of Microphytobenthos Photosynthesis on the Characteristics of the Echo Signal from Baltic Sandy Sediments
    Autorzy:
    Gorska, N.
    Kowalska-Duda, E.
    Marszal, J.
    Schmidt, J.
    Klusek, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/177331.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    hydroacoustics
    backscattering
    microphytobenthos photosynthesis
    Baltic Sea
    Opis:
    The understanding the influence of biological processes on the characteristics of the signals backscattered by the sea floor is crucial in the development of the hydroacoustical benthic habitat classification techniques. The impact of the microphytobenthos photosynthesis on the acoustical backscattering properties of the Atlantic sandy sediments was previously demonstrated by Holliday et al. (2004) and Wildman and Huettel (2012). To account for the sensitivity of the hydroacoustical classification techniques to the backscattering properties of local marine sediments, it is important to understand the microphytobenthos photosynthesis impact for the Baltic Sea where the techniques are being actively developed now. This is the main motivation of the paper. In the paper the influence of the microphytobenthos photosynthesis on the characteristics of the echo signals reflected by sandy sediments in the typical Baltic temperature and the salinity conditions is discussed. The interdisciplinary multiday laboratory experiment was conducted to study the impact of benthic microalgal photosynthesis on the characteristics of the echo signal reflected by sandy sediments. Hydroacoustical data were collected under controlled constant light, temperature and salinity conditions. The oxygen content at different levels of the water column was simultaneously monitored.
    Źródło:
    Archives of Acoustics; 2015, 40, 3; 395-405
    0137-5075
    Pojawia się w:
    Archives of Acoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Macedonia z bliska, Polska z oddali w oczach Zuzanny Topolińskiej
    Macedonia from Close Up, Poland from A Distance in The Eyes of Zuzanna Topolińska
    Autorzy:
    Duda, Henryk
    Powiązania:
    https://bibliotekanauki.pl/articles/1375737.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Slavic linguistics
    Polska
    Macedonia
    Polish-Macedonian contrastive studies
    trans-cultural studies
    evolution of Slavonic vocabulary
    językoznawstwo słowiańskie
    Polska
    polsko-macedońskie językosnawstwo konfrontatywne
    komunikacja międzykulturowa
    ewolucja leksyki słowiańskiej
    Opis:
    The article discusses the book Zmiana perspektywy. Gawęda nie tylko językoznawcza [Change of perspective. More than a tale of linguistics] by Zuzanna Topolińska (Cracow 2015). The author of this text emphasizes that the word gawęda [tale] in the book’s subtitle is misleading, given that, despite the style of language used in the book, Topolińska discusses important issues of a linguistic and intercultural nature. In her short essays in the first part of the book Topolińska addresses the organizational structure of philology studies in Poland and Macedonia, she confronts the Polish and Macedonian approach to the dialect general language relationship, she talks about language standards, about the differences between politeness in Poland and Macedonia, as well as the attitude towards women and the outlook toward religion in both countries. In the second part of the book Topolińska takes up lexical issues, giving examples of how under the influence of spiritual culture certain words in Polish and Macedonian that derive from the same core have taken on a different meaning. The author of the article concludes that this short and very personal book by Topolińska fulfills its task and subsequently alters his view on the linguistic and non-linguistic world of the Slavs.
    Źródło:
    Rocznik Slawistyczny; 2018, 67; 167-174
    0080-3588
    Pojawia się w:
    Rocznik Slawistyczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Calibration and Laboratory Testing of Computer Measuring System 8AE-PD Dedicated for Analysis of Acoustic Emission Signals Generated by Partial Discharges Within Oil Power Transformers
    Autorzy:
    Witos, F.
    Szerszeń, G.
    Opilski, Z.
    Setkiewicz, M.
    Olszewska, A.
    Duda, D.
    Maźniewski, K.
    Szadkowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/177029.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    multichannel system
    calibration
    acoustic emission
    partial discharge
    power oil transformers
    Opis:
    In the paper, there are presented a general description of the constructed measuring system 8AE-PD, the results of calibration of this system by the Hsu-Nielsen method as well as the testing of the measuring system during recording signals generated by Hsu-Nielsen sources in a steel plate and a modeled partial discharge (PD) source. There is also presented the methodology of investigations by the calibrated acoustic emission method. The results of analyses of PD signals coming from the modeled sources are given. In particular, there are described the properties of acoustic emission (AE) signals generated by the PDs as well as the dependencies of the peak-to-peak voltage Umm, the RMS voltage Urms and the descriptors of acronyms ADP and ADC on the apparent charge Q introduced by the modeled PD source. There are determined the limit values of the apparent charge Q introduced by the modeled PD source for which the recorded signal is identified as originating from the PDS.
    Źródło:
    Archives of Acoustics; 2017, 42, 2; 297-311
    0137-5075
    Pojawia się w:
    Archives of Acoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Influence of Drainage Wells Barrier on Reducing the Amount of Major Contaminants Migrating from a Very Large Mine Tailings Disposal Site
    Wpływ bariery studni drenażowych na ograniczenie ilości głównych zanieczyszczeń migrujących z bardzo dużego składowiska odpadów wydobywczych
    Autorzy:
    Duda, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/204712.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    mining waste
    tailings
    disposal site
    wells
    barrier
    vertical drainage
    contamination
    effectiveness
    Żelazny Most
    odpad wydobywczy
    odpadki
    składowisko
    studnie
    bariera hydrauliczna
    drenaż pionowy
    zanieczyszczenia
    ocena skuteczności
    Opis:
    The subject of the research is one of the largest World’s mine tailings disposal sites, i.e. Żelazny Most in the Legnica-Głogów Copper Mining District (south-western Poland), where flotation tailings are poured out after copper ore treatment. The protective hydraulic barrier made of 46 vertical drainage wells was characterized and evaluated in view of reduction of major contaminants (Cl, Na, SO4, Ca) migrating from the facility to its foreground. The efficiency of groundwater protection was determined on the basis of a new approach. In applied method the loads of characteristic and commonly recognizable compounds, i.e. salt (NaCl) and gypsum (CaSO4) were calculated, instead their chemical components. The temporal and spatial variability of captured main contaminants loads as well as its causes are discussed. The paper ends with the results of efficiency analyses of the barrier and with respect to the predicted increase in contaminant concentrations in the pulp poured out to the tailings site.
    Przedmiotem badań jest jedno z największych na świecie składowisk odpadów górniczych Żelazny Most w Legnicko-Głogowskim Okręgu Miedziowym (południowo-zachodnia Polska), na które wylewane są odpady po przeróbce rudy. Scharakteryzowano zabezpieczającą środowisko wodne barierę hydrauliczną składającą się z 46 studni drenażu pionowego i oceniono jej wpływ na ograniczenie ilości głównych zanieczyszczeń (Cl, Na, SO4, Ca) migrujących z obiektu na przedpola. Efektywność ochrony wód podziemnych określono na podstawie nowego podejścia polegającego na obliczeniu ładunków charakterystycznych i powszechnie rozpoznawalnych związków chemicznych, zamiast ich poszczególnych składników. W tym przypadku były to sól (NaCl) i gips (CaSO4). Scharakteryzowano czasową i przestrzenną zmienność ilości ładunków przejętych studniami i omówiono jej przyczyny. Artykuł zakończono wnioskami dotyczącymi oceny skuteczności bariery na podstawie przeprowadzonych badań i w odniesieniu do przewidywanego wzrostu stężeń głównych zanieczyszczeń w pulpie wylewanej na składowisko.
    Źródło:
    Archives of Environmental Protection; 2014, 40, 4; 87-99
    2083-4772
    2083-4810
    Pojawia się w:
    Archives of Environmental Protection
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-14 z 14

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