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    Wyświetlanie 1-11 z 11
    Tytuł:
    Data visualization of marine objects on digital maps
    Wizualizacja danych o obiektach morskich na mapach cyfrowych
    Autorzy:
    Czaplewski, B.
    Cwalina, K.
    Kaczmarek, S.
    Katulski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/221987.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Marynarki Wojennej. Wydział Dowodzenia i Operacji Morskich
    Tematy:
    data visualization
    marine objects
    digital maps
    wizualizacja danych
    obiekty morskie
    mapy cyfrowe
    Opis:
    The paper presents the implementation of two multithreaded applications for data visualization of marine objects written in C#, designed to run on operator consoles with 32-bit or 64-bit Windows 7 OS. The article describes the most important functionality and features of the developed C# .NET user controls for data visualization on digital maps and in the configurable tables.
    W artykule przedstawiono realizację dwóch wielowątkowych aplikacji wizualizacji danych o obiektach morskich napisanych w języku C# przeznaczonych do uruchamiania w 32-bitowym systemie operacyjnym Windows 7 lub nowszym na konsolach operatorskich. Opisano najistotniejsze funkcjonalności oraz cechy opracowanych kontrolek do wizualizacji danych o obiektach morskich na mapach cyfrowych oraz w postaci konfigurowalnych tabel.
    Źródło:
    Zeszyty Naukowe Akademii Marynarki Wojennej; 2015, R. 56 nr 3 (202), 3 (202); 5-13
    0860-889X
    Pojawia się w:
    Zeszyty Naukowe Akademii Marynarki Wojennej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetic Study of Nanocrystalline TiB₂, TiC, B₄C Powders Doped to AISI 316L Austenitic Steel
    Autorzy:
    Bodziony, T.
    Kaczmarek, S.
    Biedunkiewicz, A.
    Leniec, G.
    Figiel, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1032403.pdf
    Data publikacji:
    2017-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    07.55.Jg
    75.20.-g
    75.50.-y
    75.50.Bb
    76.30.-v
    Opis:
    The investigations into ferromagnetic resonance and magnetic susceptibility of nanocrystalline TiB₂, TiC, and B₄C powders (Ti-B-C system) doped to AISI 316L austenitic steel with different amounts (3 vol.%, 5 vol.% and 7 vol.%) have been carried out. The ferromagnetic resonance spectra were recorded in the temperature range from helium up to room temperature. The three tested composite samples contain a number of magnetic phases in different proportions. They reveal a structure originating from several different complex magnetic centers. The composites revealed such magnetic phenomena as paramagnetism, (anti)ferromagnetism, and superparamagnetism. Magnetic susceptibility investigations supported the ferromagnetic resonance studies and their analysis. Magnetic properties of the TiB₂, TiC, B₄C powders doped to AISI steel may play important role in further possible applications of these composite systems.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 1; 62-68
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelling light and photosynthesis in the marine environment
    Autorzy:
    Wozniak, B.
    Dera, J.
    Ficek, D.
    Majchrowski, R.
    Ostrowska, M.
    Kaczmarek, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/47660.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    primary production
    pigment
    underwater irradiance
    marine environment
    quantum yield
    remote sensing algorithm
    bio-optical modelling
    photoacclimation
    phytoplankton
    chromatic acclimation
    light absorption
    photosynthesis
    Opis:
    The overriding and far-reaching aim of our work has been to achieve a good understanding of the processes of light interaction with phytoplankton in the sea and to develop an innovative physical model of photosynthesis in the marine environment,suita ble for the remote sensing of marine primary production. Unlike previous models,the present one takes greater account of the complexity of the physiological processes in phytoplankton. We have focused in particular on photophysiological processes,whic h are governed directly or indirectly by light energy,or in which light, besides the nutrient content in and the temperature of seawater,is one of the principal limiting factors. To achieve this aim we have carried out comprehensive statistical analyses of the natural variability of the main photophysiological properties of phytoplankton and their links with the principal abiotic factors in the sea. These analyses have made use of extensive empirical data gathered in a wide diversity of seas and oceans by Polish and Russian teams as well as by joint Polish-Russian expeditions. Data sets available on the Internet have also been applied. As a result,a set of more or less complex,semi-empir ical models of light-stimulated processes occurring in marine phytoplankton cells has been developed. The trophic type of sea, photo-acclimation and the production of photoprotecting carotenoids,c hromatic acclimation and the production of various forms of chlorophyll-antennas and photosynthetic carotenoids,cell adaptation by the package effect, light absorption, photosynthesis, photoinhibition,the fluorescence effect,a nd the activation of PS2 centres are all considered in the models. These take into account not only the influence of light,but also, indirectly,tha t of the vertical mixing of water; in the case of photosynthesis,the quantum yield has been also formulated as being dependent on the nutrient concentrations and the temperature of seawater. The bio-optical spectral models of irradiance transmittance in case 1 oceanic waters and case 2 Baltic waters,dev eloped earlier,a lso are described in this paper. The development of the models presented here is not yet complete and they all need continual improvement. Nevertheless,w e have used them on a preliminary basis for calculating various photosynthetic characteristics at different depths in the sea,su ch as the concentration of chlorophyll and other pigments, and primary production. The practical algorithm we have constructed allows the vertical distribution of these characteristics to be determined from three input data: chlorophyll a concentration,irradiance, and temperature at the sea surface. Since all three data can be measured remotely,ou r algorithm can be applied as the ‘marine part’ of the remote sensing algorithms used for detecting marine photosynthesis.
    Źródło:
    Oceanologia; 2003, 45, 2
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spectroscopic and Laser Properties of LiNbO$\text{}_{3}$:Dy$\text{}^{3+}$ Crystals
    Autorzy:
    Malinowski, M.
    Myziak, P.
    Piramidowicz, R.
    Pracka, I.
    Łukasiewicz, T.
    Surma, B.
    Kaczmarek, S.
    Kopczyński, K.
    Mierczyk, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/1945542.pdf
    Data publikacji:
    1996-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    71.55.Ht
    78.40.Ha
    78.47.+p
    78.55.Hx
    Opis:
    The spectroscopic properties of trivalent dysprosium (Dy$\text{}^{3+}$) doped LiNbO$\text{}_{3}$ crystals have been investigated at various temperatures. Absorption, emission, excitation and lifetime measurements have been performed and discussed in the framework of Judd-Ofelt approach. The stimulated emission cross sections of the strongest transitions of Dy $\text{}^{3+}$ ion have been estimated. A stimulated emission has been demonstrated in the near infrared.
    Źródło:
    Acta Physica Polonica A; 1996, 90, 1; 181-189
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spectra of light absorption by phytoplankton pigments in the Baltic; conclusions to be drawn from a Gaussian analysis of empirical data
    Autorzy:
    Ficek, D.
    Kaczmarek, S.
    Ston-Egiert, J.
    Wozniak, B.
    Majchrowski, R.
    Dera, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/47835.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    phytoplankton pigment
    remote sensing algorithm
    Baltic Sea
    Gaussian analysis
    light absorption
    Opis:
    Analysed by differential spectroscopy, 1208 empirical spectra of light absorption apl(λ) by Baltic phytoplankton were spectrally decomposed into 26 elementary Gaussian component bands. At the same time the composition and concentrations of each of the 5 main groups of pigments (chlorophylls a, chlorophylls b, chlorophylls c, photosynthetic carotenoids and photoprotecting carotenoids) were analysed in 782 samples by HPLC. Inspection of the correlations between the intensities of the 26 elementary absorption bands and the concentrations of the pigment groups resulted in given elementary bands being attributed to particular pigment groups and the spectra of the mass-specific absorption coefficients established for these pigment groups. Moreover, balancing the absorption effects due to these 5 pigment groups against the overall absorption spectra of phytoplankton suggested the presence of a sixth group of pigments, as yet unidentified (UP), undetected by HPLC. Apr eliminary mathematical description of the spectral absorption properties of these UP was established. Like some forms of phycobilins, these pigments are strong absorbers in the 450–650 nm spectral region. The packaging effect of pigments in Baltic phytoplankton was analysed statistically, then correlated with the concentration of chlorophyll a in Baltic water. As a result, a Baltic version of the algorithm of light absorption by phytoplankton could be developed. This algorithm can be applied to estimate overall phytoplankton absorption spectra and their components due to the various groups of pigments from a knowledge of their concentrations in Baltic water.
    Źródło:
    Oceanologia; 2004, 46, 4
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Practical applications of the multi-component marine photosynthesis model (MCM)
    Autorzy:
    Ficek, D.
    Majchrowski, R.
    Ostrowska, M.
    Kaczmarek, S.
    Wozniak, B.
    Dera, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/48509.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    primary production
    quantum yield
    inorganic nitrogen
    temperate zone
    tropical zone
    practical application
    bio-optical modelling
    marine photosynthesis model
    marine alga
    polar zone
    photosynthesis
    Opis:
    This paper describes the applications and accuracy analyses of our multi-component model of marine photosynthesis, given in detail in Woźniak et al. (2003). We now describe an application of the model to determine quantities characterising the photosynthesis of marine algae, especially the quantum yield of photosynthesis and photosynthetic primary production. These calculations have permitted the analysis of the variability of these photosynthesis characteristics in a diversity of seas, at different seasons, and at different depths. Because of its structure, the model can be used as the ‘marine part’ of a ‘satellite’ algorithm for monitoring primary production in the sea (the set of input data necessary for the calculations can be determined with remote sensing methods). With this in mind, in the present work, we have tested and verified the model using empirical data. The verification yielded satisfactory results: for example, the statistical errors in estimates of primary production in the water column for Case 1 Waters do not exceed 45%. Hence, this model is far more accurate than earlier, less complex models hitherto applied in satellite algorithms.
    Źródło:
    Oceanologia; 2003, 45, 3
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Visualization of events using various kinds of synchronized data for the Border Guard
    Wizualizacja zdarzeń przy użyciu różnych rodzajów danych dla Straży Granicznej
    Autorzy:
    Czaplewski, B.
    Kaczmarek, S.
    Litka, J.
    Miszewski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/222950.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Marynarki Wojennej. Wydział Dowodzenia i Operacji Morskich
    Tematy:
    Border Guard
    data visualization
    distributed systems
    multimedia
    Straż Graniczna
    zobrazowanie danych
    system rozproszony
    Opis:
    STRADAR project is dedicated to streaming real-time data in a distributed dispatcher and teleinformation system of the Border Guard. The Events Visualization Post is a software designed for simultaneous visualization of data of different types in BG headquarters. The software allows the operator to visualize files, images, SMS, SDS, video, audio, and current or archival data on naval situation on digital maps. All the visualized data can be synchronized in time.
    Projekt STRADAR poświęcony jest strumieniowej transmisji danych czasu rzeczywistego w rozproszonych systemach dyspozytorskich i teleinformatycznych Straży Granicznej. Stanowisko wizualizacji zdarzeń jest oprogramowaniem przeznaczonym do jednoczesnej wizualizacji danych różnych rodzajów. Umożliwia ono operatorowi wizualizację plików, zdjęć, SMS-ów, SDS-ów, nagrań wideo, nagrań audio oraz bieżących i archiwalnych danych o sytuacji na morzu na mapach cyfrowych. Wszystkie wizualizowane dane mogą być zsynchronizowane w czasie.
    Źródło:
    Zeszyty Naukowe Akademii Marynarki Wojennej; 2017, R. 58 nr 2 (209), 2 (209); 5-13
    0860-889X
    Pojawia się w:
    Zeszyty Naukowe Akademii Marynarki Wojennej
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model of the in vivo spectral absorption of algal pigments. Part 2. Practical applications of the model
    Autorzy:
    Majchrowski, R.
    Wozniak, B.
    Dera, J.
    Ficek, D.
    Kaczmarek, S.
    Ostrowska, M.
    Koblentz-Mishke, O.I.
    Powiązania:
    https://bibliotekanauki.pl/articles/48872.pdf
    Data publikacji:
    2000
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    practical application
    bio-optical modelling
    depth
    algal pigment
    in vivo
    sea
    statistical model
    phytoplankton
    light absorption
    Opis:
    The article describes applications and accuracy analyses of a statistical model of light absorption by phytoplankton that accounts for the influence of photo- and chromatic acclimation on its absorption properties. Part 1 of this work (seeWoźniak et al. 2000, this volume) describes the mathematical apparatus of the model. Earlier models by Woźniak & Ostrowska (1990) and by Bricaud et al. (1995, 1998) are analysed for comparison. Empirical verification of these three models shows that the new model provides a much better approximation of phytoplankton absorption properties than do the earlier models. The statistical errors in estimating the mean absorption coefficient apl, for example, are σ+ = 36% for the new model, whereas for the earlier models the figures are σ+ = 43% (Bricaud et al. 1995, 1998) and σ+ = 59% (Woźniak & Ostrowska 1990). Example applications are given of the new model illustrating the variability in phytoplankton absorption properties with depth and trophicity of the sea.
    Źródło:
    Oceanologia; 2000, 42, 2
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Streaming Real-time Data in Distributed Dispatcher and Teleinformation Systems for Visualization of Multimedia Data of the Border Guard
    Autorzy:
    Blok, M.
    Czaplewski, B.
    Kaczmarek, S.
    Litka, J.
    Narloch, M.
    Sac, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/116615.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    border guard
    transport telematics
    events visualization post
    distributed dispatcher
    multimedia data
    real-time data
    teleinformation systems
    visualization
    Opis:
    Surveillance of the sea borders is a very important task for the Border Guard. Monitoring of country maritime border is an important task of the Border Guard. This task can be facilitated with the use of the technology enabling gathering information from distributed sources and its supervision and visualization. This task can be accomplished using a technology that allows to collect information from distributed sensors of different types, unify the collected information, and present the synchronized data. The system presented in the paper is an extension and enhancement of the previously developed distributed map data exchange system. The added functionality allows to supplement the map data with multimedia (telephone and radio calls, video (cameras), photos, files, SMS/SDS) and presentation of current and archival situation on a multi-display screen in the Events Visualization Post. In the paper, the system architecture, functionality and main system elements are described and supported with preliminary analysis and test results.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 2; 217-229
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model of the in vivo spectral absorption of algal pigments. Part 1. Mathematical apparatus
    Autorzy:
    Wozniak, B.
    Dera, J.
    Ficek, D.
    Majchrowski, R.
    Kaczmarek, S.
    Ostrowska, M.
    Koblentz-Mishke, O.I.
    Powiązania:
    https://bibliotekanauki.pl/articles/48333.pdf
    Data publikacji:
    2000
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    chlorophyll a
    bio-optical modelling
    photosynthetic pigment
    photoacclimation
    sea water
    algal pigment
    in vivo
    phytoplankton
    mathematical apparatus
    chromatic acclimation
    light absorption
    Opis:
    Existing statistical models of in vivo light absorption by phytoplankton (Woźniak & Ostrowska 1990, Bricaud et al. 1995, 1998) describe the dependence of the phytoplankton specific spectral absorption coefficient a∗ pl(λ) on the chlorophyll a concentration Ca in seawater. However, the models do not take into account the variability in this relationship due to phytoplankton acclimation. The observed variability in the light absorption coefficient and its components due to various pigments with depth and geographical position at sea, requires further accurate modelling in order to improve satellite remote sensing algorithms and interpretation of ocean colour maps. The aim of this paper is to formulate an improved model of the phytoplankton spectral absorption capacity which takes account of the pigment composition and absorption changes resulting from photo- and chromatic acclimation processes, and the pigment package effect. It is a synthesis of earlier models and the following statistical generalisations: (1) statistical relationships between various pigment group concentrations and light field properties in the sea (described by Majchrowski & Ostrowska 2000, this volume); (2) a model of light absorption by phytoplankton capable of determining the mathematical relationships between the spectral absorption coefficients of the various photosynthetic and photoprotecting pigment groups, and their concentrations in seawater (Woźniak et al. 1999); (3) bio-optical models of light propagation in oceanic Case 1 Waters and Baltic Case 2 Waters (Woźniak et al. 1992a, b, 1995a,b). The generalised model described in this paper permits the total phytoplankton light absorption coefficient in vivo as well as its components related to the various photosynthetic and photoprotecting pigments to be determined using only the surface irradiance PAR(0+) surface chlorophyll concentration Ca(0) and depth z in the sea as input data.
    Źródło:
    Oceanologia; 2000, 42, 2
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Two models for absorption by coloured dissolved organic matter (CDOM)
    Autorzy:
    Schwarz, J.N.
    Kowalczuk, P.
    Kaczmarek, S.
    Cota, G.F.
    Mitchell, B.G.
    Kahru, M.
    Chavez, F.P.
    Cunningham, A.
    McKee, D.
    Gege, P.
    Kishino, M.
    Phinney, D.A.
    Raine, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/47774.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    ocean colour
    coloured dissolved organic matter
    surface water
    coastal water
    spectrophotometric measurement
    ultraviolet absorption
    absorption
    Vistula River
    Opis:
    The standard exponential model for CDOM absorption has been applied to data from diverse waters. Absorption at 440 nm (ag440) ranged between close to zero and 10 m−1, and the slope oft he semilogarithmic absorption spectrum over a minimum range of400 to 440 nm (s440) ranged between <0.01 and 0.04 nm−1. No relationship was found between ag440 or s440 and salinity. Except in the southern Baltic, s440 was found to have a broad distribution (0.0165 ± 0.0035), suggesting that it should be introduced as an additional variable in bio-optical models when ag440 is large. An alternative model for CDOM absorption was applied to available high quality UV-visible absorption spectra from the WisGla river (Poland). This model assumes that the CDOM absorption spectrum comprises distinct Gaussian absorption bands in the UV, similar to those ofb enzene. Five bands were fit to the data. The mean central energy ofal l bands was higher in early summer (E ∼7.2, 6.6, 6.4, 6.2 and 5.5 eV or 172, 188, 194, 200 and 226 nm) than in winter. The higher energy bands were found to decay in both height and width with increasing salinity, while lower energy bands broadened with increasing salinity. s440 was found to be correlated with shape parameters of the bands centred at 6.4 and 5.5 eV. While the exponential model is convenient for optical modelling and remote sensing applications, these results suggest that the Gaussian model offers a deeper understanding ofc hemical interactions affecting CDOM molecular structure.
    Źródło:
    Oceanologia; 2002, 44, 2
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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