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Wyszukujesz frazę "Król-Nowak, A." wg kryterium: Autor

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    Wyświetlanie 1-8 z 8
    Tytuł:
    Lombard Effect in Polish Speech and its Comparison in English Speech
    Autorzy:
    Kleczkowski, P.
    Żak, A.
    Król-Nowak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/177703.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    lombard effect
    speech production
    Polish speech
    speech level
    fundamental frequency of speech
    spectral tilt
    Opis:
    The first extensive investigation on the Lombard effect with Polish speech has been performed. Characteristic parameters of Lombard speech were measured: intensity, fundamental frequency, spectral tilt, duration of words, duration of pauses and duration of vowels. The effect was investigated in a task involving real communication – solving a Sudoku puzzle. The speakers produced speech in quiet and in three different backgrounds: competing speech, speech-shaped noise and speech-modulated noise. The experimental conditions were held as close as possible to those in the study by Cooke and Lu (2010) so that conclusions could be drawn whether differences between the Lombard effect in Polish speech and English speech existed. Most of the findings on the Lombard effect known from the literature have been confirmed with Polish speech. In three parameters, Polish speakers were more sensitive to modulated backgrounds while English speakers were more sensitive to a stationary background. In both languages, the modulated backgrounds induced speakers to extend pauses in the communication tasks.
    Źródło:
    Archives of Acoustics; 2017, 42, 4; 561-569
    0137-5075
    Pojawia się w:
    Archives of Acoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hydroquinone Synthesis of Silver Nanoparticles from Silver Bromide Suspensions
    Autorzy:
    Król-Gracz, A.
    Nowak, P.
    Michalak, E.
    Dyonizy, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1491287.pdf
    Data publikacji:
    2012-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.07.-Bc
    61.46.Hk
    Opis:
    The results of research into the preparation of silver nanoparticles using photoreduction in the presence of hydroquinone as the reductant were discussed. Substrates for the synthesis of silver nanoparticles were ultrafine crystalline gelatine-stabilised aqueous suspensions of silver bromide. The influence of the reductant to substrate molar ratio and the medium's pH to the efficient production of silver nanoparticles were studied. The properties of resultant silver particles were examined using UV-Vis spectroscopy. Transmission electron microscopy was used for the photomicrography of silver nanoparticles suspensions.
    Źródło:
    Acta Physica Polonica A; 2012, 121, 1; 196-199
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synthesis of Silver Halide Nanosols
    Autorzy:
    Michalak, E.
    Nowak, P.
    Król-Gracz, A.
    Dyonizy, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1491302.pdf
    Data publikacji:
    2012-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.07.-b
    Opis:
    The aim of this work was to establish the average size of silver halide nanosols. The method applied was based on the optical turbidance measurements in real time of crystallization process. Dilute turbid suspensions of silver bromide, chloride and iodide stabilized by excess of halide ions and gelatin were measured over wavelength range from 450 nm to 600 nm. Experimental results were compared with the scattering theory of Rayleigh. Relation between dosing rate of reactants to dispersion system and size of obtained silver halide crystals was investigated. Interest in crystalline gelatine-stabilised aqueous suspensions of silver halide is due to their application as a substrate for the synthesis of silver nanoparticles.
    Źródło:
    Acta Physica Polonica A; 2012, 121, 1; 200-202
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preparation and characterization of ultra-fine silver bromide suspension
    Autorzy:
    Król-Gracz, A.
    Michalak, E.
    Nowak, P.
    Dyonizy, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/115949.pdf
    Data publikacji:
    2011
    Wydawca:
    Fundacja na Rzecz Młodych Naukowców
    Tematy:
    nanoparticles
    silver bromide
    synthesis method
    gelatine
    Opis:
    This paper present the results of studies on ultra fine-crystalline silver bromide suspensions, which were stabilized by gelatin and excess of bromide ions. Relation between dosing rate of reactants to size of obtained silver bromide crystals was investigated. Granulometric properties obtained nanocrystals were studied by turbidity method and by technique of Dynamic Light Scattering (DLS). Additionally, a photomicrograph of suspension using Scanning Electron Microscopy (SEM) was performed.
    Źródło:
    Challenges of Modern Technology; 2011, 2, 2; 38-42
    2082-2863
    2353-4419
    Pojawia się w:
    Challenges of Modern Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Otrzymywanie ultra drobnokrystalicznych zawiesin bromku srebra
    Synthesis of silver bromide ultra-fine crystals suspensions
    Autorzy:
    Dyonizy, A.
    Nowak, P.
    Król-Gracz, A.
    Michalak, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1287376.pdf
    Data publikacji:
    2010
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Przemysłu Chemicznego. Zakład Wydawniczy CHEMPRESS-SITPChem
    Tematy:
    bromek srebra
    nanocząstki
    nanotechnologia
    silver bromide
    nanoparticle
    nanotechnology
    Opis:
    W pracy przedstawiono wyniki badań nad syntezą ultra drobnokrystalicznych zawiesin bromku srebra, uzyskiwanych w postaci stężonych zoli stabilizowanych nadmiarem jonów bromkowych oraz żelatyną. Zbadano wpływ szybkości dozowania substratów do mieszaniny dyspersyjnej na wielkość powstających kryształów bromku srebra. Oszacowano również zmiany wielkości kryształów w czasie przechowywania zawiesin w formie żelu, w obniżonej temperaturze. Właściwości granulometryczne badano metodą turbidymetryczną dokonując pomiaru zmętnienia w czasie procesu krystalizacji oraz metodą stężeniową.
    This work present the results of research in ultra-fine crystals suspension of silver bromide crystals, which were received as high concentration sols stabilized by excess of bromide ions and gelatin. Relation between dosing rate of reactants to dispersion system and size of obtained silver bromide crystals was investigated. Alterations of crystals size during storing time as gel in decreased temperature, was estimated. Particle size distributions were examined by turbidity measurements using direct turbidity measurement technique in real time of crystallization process and by concentration method.
    Źródło:
    Chemik; 2010, 64, 1; 33-44
    0009-2886
    Pojawia się w:
    Chemik
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fluorescence Microscopy of Corrole-Single Silver Nanowire Hybrid Nanostructures
    Autorzy:
    Czechowski, N.
    Olejnik, M.
    Nowak-Król, A.
    Piątkowski, D.
    Heiss, W.
    Gryko, D.
    Mackowski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1419537.pdf
    Data publikacji:
    2012-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    33.50.-j
    78.67.Uh
    73.20.Mf
    81.07.Pr
    81.07.-b
    Opis:
    We report on confocal microscopy imaging of hybrid nanostructures composed of silver nanowires and corroles. Both nanomaterials were separated by a 30 nm thick $SiO_2$ spacer in order to inhibit fluorescence quenching. The results show that for such a hybrid nanostructure the average enhancement of the fluorescence intensity reached 2.5. Importantly, the coupling to plasmon excitations in metallic nanowires leaves no effect on the fluorescence spectrum of the organic molecules.
    Źródło:
    Acta Physica Polonica A; 2012, 122, 2; 333-336
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Studies of the Verwey Transition in Magnetite
    Autorzy:
    Tarnawski, Z.
    Wiecheć, A.
    Madej, M.
    Nowak, D.
    Owoc, D.
    Król, G.
    Kąkol, Z.
    Kolwicz-Chodak, L.
    KozŁowski, A.
    Dawid, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/2041527.pdf
    Data publikacji:
    2004-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.18.Bn
    75.40.-s
    71.20.Lp
    Opis:
    Studies of the specific heat and simultaneous AC magnetic susceptibility (ρ') and electric resistance of stoichiometric magnetite single crystal are presented. The temperature hysteresis of the Verwey transition is of 0.03 K found from the specific heat data confirming its first-order character. The continuous temporal change of ρ' at T$\text{}_{V}$ can be switched off by an external magnetic field without affecting the transition. The electrical resistance decreases continuously with increasing temperature with a rapid change of slope at the point when the phase transition is completed. It was concluded that the magnetic degrees of freedom do not actively participate in the transition and that the entropy released at T$\text{}_{V}$ may come from ordering electrons.
    Źródło:
    Acta Physica Polonica A; 2004, 106, 5; 771-775
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Transformation of a large multi-speciality hospital into a dedicated COVID-19 centre during the coronavirus pandemic
    Autorzy:
    Król, Z.
    Szymański, P.
    Bochnia, A.
    Abramowicz, E.
    Płachta, A.
    Rzepliński, R.
    Sługocki, M.
    Nowak, B.
    Zaczyński, A.
    Kozłowski, K.
    Posobkiewicz, M.
    Wierzba, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/2085728.pdf
    Data publikacji:
    2020
    Wydawca:
    Instytut Medycyny Wsi
    Tematy:
    COVID-19
    SARS-CoV-2
    coronavirus pandemic
    treatment in an infectious hospital
    epidemic safety
    organizational changes
    Opis:
    Introduction. The article describes the process of converting a large multi-specialized hospital into one dedicated to COVID-19 patients, and present established standards of work organization in all the wards and training system of the medical and supporting staff. The several weeks pandemic of the COVID-19 disease has forced the healthcare systems of numerous countries to adjust their resources to the care of the growing number of COVID-19 patients. Managers were presented with the challenge of protecting the healthcare workers from transmission of the disease within medical institutions, and issues concerning the physical and psychological depletion of personnel. Materials and method. Based on analyses of the structure and work processes in Central Clinical Hospital (CCH) reconstructive strategic plan was developed. It included: division of existing wards into observation and isolation wards; installing locks; weekly plan for supplying personal protection equipment (PPE); designating new access to the hospital and communication routes; training of medical and supporting staff. The plan was implemented from the first days of conversion of the hospital. Results. The wards of the CCH were converted for observation and isolation, and each one was fitted with sanitary locks. There was a big improvement in the supply of PPE for the medical staff. Separation of the ‘dirty’ and ‘clean’ parts of the CCH were attained, and widespread intensive training not only protected personnel against infections, but also diminished unrest which was discernable at the beginning of conversion. Conclusions. The transformation efforts will ultimately be appraised at the end of the epidemic, but the data looks encouraging. Two weeks after conversion, the testing of hospital Staff was started and by the end of April, 459 tests were had been conducted, of which only 11 were positive.
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2020, 27, 2; 201-206
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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