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Wyszukujesz frazę "Nowak, T. K." wg kryterium: Autor

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    Wyświetlanie 1-8 z 8
    Tytuł:
    Numerical Solution of Fractional Neutron Point Kinetics Model in Nuclear Reactor
    Autorzy:
    Nowak, T. K.
    Duzinkiewicz, K.
    Piotrowski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/229399.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fractional differential equation
    fractional derivatives and integrals
    system of equations
    nuclear reactor
    neutron point kinetics
    Opis:
    This paper presents results concerning solutions of the fractional neutron point kinetics model for a nuclear reactor. Proposed model consists of a bilinear system of fractional and ordinary differential equations. Three methods to solve the model are presented and compared. The first one entails application of discrete Grünwald-Letnikov definition of the fractional derivative in the model. Second involves building an analog scheme in the FOMCON Toolbox in MATLAB environment. Third is the method proposed by Edwards. The impact of selected parameters on the model’s response was examined. The results for typical input were discussed and compared.
    Źródło:
    Archives of Control Sciences; 2014, 24, 2; 129-154
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A simple method for extracting DNA from rhododendron plants infected with Phytophthora spp. for use in PCR
    Autorzy:
    Trzewik, A.
    Nowak, K.J.
    Orlikowska, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/66480.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    simple method
    DNA extraction
    rhododendron
    leaf
    plant infection
    Phytophthora
    polymerase chain reaction
    detection
    real-time PCR method
    Opis:
    Among the numerous protocols that describe the extraction of DNA, those relating to the isolation of DNA from infected plants, are rare. This study describes a rapid and reliable method of extracting a high quality and quantity of DNA from rhododendron leaves artificially infected with Phytophthora cactorum, P. cambivora, P. cinnamomi, P. citrophthora, and P. plurivora. The use of the modified Doyle and Doyle protocol (1987) allowed us to obtain high quantity and quality DNA (18.26 μg from 100 mg of the fresh weight of infected leaves at the ratios of A260/280 and A260/230 – 1.83 and 1.72, respectively), suitable for conventional polymerase chain reaction (PCR) and real-time PCR amplifications.
    Źródło:
    Journal of Plant Protection Research; 2016, 56, 1
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Limited pattern of TCR delta chain gene rearrangement on the RNA level in multiple sclerosis
    Autorzy:
    Nowak, J
    Januszkiewicz, D.
    Pernak, M.
    Hertmanowska, H.
    Nowicka-Kujawska, K.
    Rembowska, J.
    Lewandowski, K.
    Nowak, T.
    Wender, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2041829.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    patient
    human genetics
    brain
    multiple sclerosis
    autoagression
    T cell receptor rearrangement
    gene rearrangement
    RNA level
    chain gene
    Źródło:
    Journal of Applied Genetics; 2001, 42, 4; 531-540
    1234-1983
    Pojawia się w:
    Journal of Applied Genetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Flexible function block for industrial applications of active disturbance rejection controller
    Autorzy:
    Nowak, P.
    Stebel, K.
    Klopot, T.
    Czeczot, J.
    Fratczak, M.
    Laszczyk, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/229587.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    industrial control systems
    active disturbance rejection control
    ADRC
    practical
    tuning
    practical implementation
    programmable logic controller
    PLC
    Opis:
    In this paper, the PLC-based (Programmable Logic Controller) industrial implementation in the form of the general-purpose function block for ADRC (Active Disturbance Rejection Controller) is presented. The details of practical aspects are discussed because their reliable implementation is not trivial for higher order ADRC. Additional important novelties discussed in the paper are the impact of the derivative backoff and the method that significantly simplifies tuning of higher order ADRC by avoiding the usual trial and error procedure. The results of the practical validation of the suggested concepts complete the paper and show the potential industrial applicability of ADRC.
    Źródło:
    Archives of Control Sciences; 2018, 28, 3; 379-400
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Highly sensitive airborne open path optical hygrometer for upper air measurements – proof of concept
    Autorzy:
    Stacewicz, T.
    Magryta, P.
    Petersen, B.
    Nowak, J. L.
    Kwiatkowski, K.
    Malinowski, S. P.
    Powiązania:
    https://bibliotekanauki.pl/articles/221077.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    humidity
    hygrometer
    laser
    absorption
    CRDS
    Opis:
    A concept of a highly sensitive and fast-response airborne optoelectronic hygrometer, based on the absorption spectroscopy with laser light tuned to an intense ro-vibronic absorption line of H2O in the 1391–1393 nm range is presented. The target application of this study is airborne atmospheric measurements, in particular at the top of troposphere and in stratosphere. The cavity ring-down spectroscopy was used to achieve high sensitivity. In order to avoid interference of the results by water desorbed from the instrument walls, the open-path solution was applied. Tests of the instrument, performed in a climatic chamber, have shown some advantages of this concept over typical hygrometers designed for similar applications.
    Źródło:
    Metrology and Measurement Systems; 2018, 25, 4; 793-805
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impedance Sensors Made in PCB and LTCC Technologies for Monitoring Growth and Degradation of Pseudomonal Biofilm
    Autorzy:
    Chabowski, K.
    Junka, A. F.
    Piasecki, T.
    Nowak, D.
    Nitsch, K.
    Smutnicka, D.
    Bartoszewicz, M.
    Moczała, M.
    Szymczyk, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/221326.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Pseudomonas aeruginosa
    biofilm
    interdigitated sensor
    impedance spectroscopy
    Opis:
    The suitability of low-cost impedance sensors for microbiological purposes and biofilm growth monitoring was evaluated. The sensors with interdigitated electrodes were fabricated in PCB and LTCC technologies. The electrodes were golden (LTCC) or gold-plated (PCB) to provide surface stability. The sensors were used for monitoring growth and degradation of the reference ATCC 15442 Pseudomonas aeruginosa strain biofilm in invitro setting. During the experiment, the impedance spectra of the sensors were measured and analysed using electrical equivalent circuit (EEC) modelling. Additionally, the process of adhesion and growth of bacteria on a sensor’s surface was assessed by means of the optical and SEM microscopy. EEC and SEM microscopic analysis revealed that the gold layer on copper electrodes was not tight, making the PCB sensors susceptible to corrosion while the LTCC sensors had good surface stability. It turned out that the LTCC sensors are suitable for monitoring pseudomonal biofilm and the PCB sensors are good detectors of ongoing stages of biofilm formation.
    Źródło:
    Metrology and Measurement Systems; 2017, 24, 2; 369-380
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reconstruction of the Casting Technology in the Bronze Age on the Basis of Investigations and Visualisation of Casting Moulds
    Autorzy:
    Garbacz-Klempka, A.
    Kwak, Z.
    Żak, P. L.
    Szucki, M.
    Ścibior, D.
    Stolarczyk, T.
    Nowak, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/381850.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    application of information technology
    foundry industry
    archaeometallurgy
    casting moulds
    bronze
    XRF
    zastosowanie technologii informatycznych
    przemysł odlewniczy
    archaeometalurgia
    formy odlewnicze
    brąz
    Opis:
    During excavation of the cremation cemetery of urnfield culture in Legnica at Spokojna Street (Lower Silesia, Poland), dated to 1100-700 BC, the largest - so far in Poland – a collection of casting moulds from the Bronze Age was discovered: three moulds for axes casting made out of stone and five moulds for casting sickles, razors, spearhead and chisels, made out of clay. This archaeological find constituted fittings of foundrymen’s graves. In order to perform the complete analysis of moulds in respect of their application in the Bronze Age casting technology analytical methods, as well as, computer aided methods of technological processes were used. Macroscopic investigations were performed and the X-ray fluorescence spectrometry method was used to analyse the chemical composition and metal elements content in mould cavities. Moulds were subjected to three-dimensional scanning and due to the reverse engineering the geometry of castings produced in these moulds were obtained. The gathered data was used to perform design and research works by means of the MAGMA5 software. Various variants of the pouring process and alloys solidification in these archaeological moulds were simulated. The obtained results were utilised in the interpretation of the Bronze Age casting production in stone and clay moulds, with regard to their quality and possibility of casting defects occurrence being the result of these moulds construction. The reverse engineering, modelling and computer simulation allowed the analysis of moulds and castings. Investigations of casting moulds together with their digitalisation and reconstruction of casting technology, confirm the high advancement degree of production processes in the Bronze Age.
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 3; 184-190
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Graphene-Based Composite Membrane for Water Desalination
    Autorzy:
    Dybowski, K.
    Kowalczyk, P.
    Kula, P.
    Jeziorna, A.
    Atraszkiewicz, R.
    Kołodziejczyk, Ł.
    Zawadzki, P.
    Nowak, D.
    Kazimierczak, T.
    Kucińska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/354170.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    graphene
    desalination
    water filtration
    polycrystalline graphene
    graphene composite
    Opis:
    The article presents the results of studies on the efficacy of water desalination (i.e. Elimination of NaCl ions from the solution) using graphene-polyamide composite membranes. The membranę used for filtration consists of a monolayer of polycrystalline graphene on a porous polyamide carrier support (nylon 66). The degree of desalination for an aqueous NaCl solution percolated through the membrane was 18%. In the future this type of membrane may replace the currently used reverse osmosis membranes.
    Źródło:
    Archives of Metallurgy and Materials; 2018, 63, 3; 1379-1383
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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