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Wyświetlanie 1-4 z 4
Tytuł:
Simultaneous Measurement of the DPOAE Signal Amplitude and Phase Changes
Autorzy:
Michalski, W.
Bochnia, M.
Dziewiszek, W.
Powiązania:
https://bibliotekanauki.pl/articles/177027.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
signals
double-phase-sensitive detection
guinea pigs
Opis:
Although the phenomenon of otoacoustic emission has been known for nearly 30 years, it has not been fully explained yet. One kind of otoacoustic emission is distortion product of the otoacoustic emission (DPOAE). New aspects of this phenomenon are constantly discovered and attempts are made to interpret correctly the obtained results. This paper discusses a new method of measuring DPOAE signals based on double phase-sensitive detection, which makes possible a real-time measurement of the DPOAE signal amplitude and phase. The method was applied for measurements of DPOAE signals in guinea pigs. Sample records are presented and the obtained results are discussed.
Źródło:
Archives of Acoustics; 2011, 36, 3; 499-508
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelowanie mikroprocesorowego sterowania temperaturą i wilgotnością w oborze
Modelling of microprocessor system controlling the air temperature and relative humidity in a cattle barn
Autorzy:
Juszka, H.
Tomasik, M.
Bochnia, B.
Powiązania:
https://bibliotekanauki.pl/articles/238659.pdf
Data publikacji:
2008
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
obora
mikroklimat
sterowanie mikroprocesorowe
temperatura
wilgotność
cattle barn
microclimate
microprocessor control
temperature
humidity
Opis:
Analizowano czynniki kształtujące mikroklimat w budynkach dla bydła. Wybrano dwa najważniejsze parametry: temperaturę i wilgotność. Przedstawiono model systemu sterowania temperaturą i wilgotnością w oborze. Model bazuje na elektronicznych urządzeniach pomiarowych i sterujących. Na skonstruowanym stanowisku badawczym, stanowiącym zamknięte po-mieszczenie, wykonano pomiary temperatury i wilgotności powietrza. Sterowanie i regulacja odbywa się za pomocą sterownika mikroprocesorowego.
Factors creating the microclimatic conditions in the cattle barns were analyzed. Two most important parameters were considered: the temperature and relative humidity of air. The model of system controlling air temperature and relative humidity inside a cattle barn was presented. Model is based on electronic, measuring and steering devices. The air temperature and relative humidity were determined on measuring stand designed in form of a closed space. Microprocessor system was applied to control and steering of both selected parameters.
Źródło:
Problemy Inżynierii Rolniczej; 2008, R. 16, nr 4, 4; 103-109
1231-0093
Pojawia się w:
Problemy Inżynierii Rolniczej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of Sediments Causing Damage to Water Meters in a Large Drinking Water Distribution System
Autorzy:
Kopeć, M.
Roman, M.
Kąc, M.
Budziak, A.
Paluszkiewicz, C.
Zarzycki, A.
Kąc, S.
Dutkiewicz, E.
Cichoń, T.
Bochnia, T.
Kwiatek, W.
Powiązania:
https://bibliotekanauki.pl/articles/1030652.pdf
Data publikacji:
2018-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
89.60.-k
78.70.En
61.05.cp
82.80.-d
82.80.Gk
Opis:
Preliminary studies on the sediments collected from water meters of Krakow water supply system were performed in the cooperation with the Municipal Water Supply and Sewage. Creation and deposition of sediments on the measuring devices installed in the water supply system is a serious technological and economical problem for water companies, defectively operating for this reason water meters must be replaced. It is evident that knowledge of the chemical and phase composition of sediments is an important step towards resolving the problem of impurities in water supply systems. Four different samples of sediments, coming from water meters, were investigated using the proton-induced X-ray emission, the X-ray diffraction, the Fourier transform infrared and Raman spectroscopy. The X-ray methods revealed presence of amorphous and fine-crystalline phases as well as high content of iron-based compounds. As a crystalline phase, the most frequently appeared: goethite, lepidocrocite, iron oxides (hematite, maghemite, magnetite), calcium carbonate, and quartz. In one of the samples, the nanocrystalline phase was found and identified as hydrous iron oxyhydroxide ferrihydrite. Vibrational spectroscopy methods confirmed the composition of crystalline phases as well as enabled to estimate the abundance of amorphous phase in samples.
Źródło:
Acta Physica Polonica A; 2018, 133, 2; 296-301
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 1-4 z 4

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