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Wyszukujesz frazę "Lipowski, A." wg kryterium: Wszystkie pola


Wyświetlanie 1-3 z 3
Tytuł:
Survival rate of Suid Herpesvirus (SuHV-1, Aujeszky`s disease virus, ADV) in composted sewage sludge
Autorzy:
Paluszak, Z.
Lipowski, A.
Ligocka, A.
Powiązania:
https://bibliotekanauki.pl/articles/30422.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
survival rate
Suid herpesvirus 1
herpesvirus
composted sewage sludge
Aujeszky's disease
Aujeszky's disease virus
Opis:
Sewage sludge constitutes a source of valuable biogenic raw materials, but it is a carrier of many pathogenic microorganisms and viruses. Subjected to an effective sanitization by means of the process of composting, it is suitable to use in agriculture as fertilizers. The aim of this study was to observe the survival rate of Suid Herpesvirus under the influence of the temperature alone (water bath) as well as in sewage sludge subjected to the process of composting (pile). The samples were taken at different time intervals, and the virus titres were determined. The viruses survived considerably longer under laboratory conditions: at 30°C as long as 21 days, at 40°C - 93 hours, and at 50°C - less than an hour. In the compost pile, in spite of the lack of the thermophylic phase, the total survival time of the viruses ranged from 34 to 44.5 hours, which indicates the vast importance of other physicochemical factors, apart from the temperature, contributing to virus inactivation.
Źródło:
Polish Journal of Veterinary Sciences; 2012, 15, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survival of BPV and Aujeszkys disease viruses in meat wastes subjected to different sanitization processes
Autorzy:
Paluszak, Z.
Lipowski, A.
Ligocka, A.
Powiązania:
https://bibliotekanauki.pl/articles/30706.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
survival
bovine parvovirus
parvovirus
Aujeszky's disease virus
meat waste
sanitization process
composting
fermentation
anaerobic fermentation
virus
meat fragment
bone
waste treatment
temperature
pathogen
Opis:
The effect of composting and anaerobic fermentations under meso- and thermophylic conditions (37° and 55℃) on the survival of bovine parvovirus (BPV) and Aujeszky’s disease viruse (ADV) in meat wastes has been examined in this study. Viruses were adsorbed on filters and introduced into carriers which were made of meat fragments of different sizes and bones or in the form of suspension they were introduced into the biomass in the course of processes of waste treatment. Carriers were removed at appropriate time intervals and virus titres were determined. The thermoresistant parvovirus survived for the longest time during mesophylic fermentation (almost 70 days), slightly shorter during composting (7-9.5 days depending on the type of carrier) and for the shortest time – at 55℃ (46-76 hours). Its inactivation rate was the fastest in a suspension, slower in meat and bone carriers. ADV inactivation proceeded considerably faster, as compared with BPV. Its active particles were not detected as early as in the 30th minute of thermophylic fermentation, the 6th hour of mesophylic fermentation and at the first sampling time during composting (at the 72nd hour). Total survival time ranged from 50 min to 13 hours. All the tested technologies enabled the effective elimination of ADV and on average twofold decrease in BPV titre. From the study conducted it follows that of both viruses, the BPV should be applied for validation processes of methods used in meat waste processing, particularly if this refers to methods where higher temperature is the factor inactivating pathogens.
Źródło:
Polish Journal of Veterinary Sciences; 2010, 13, 4
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of a novel FPGA-based system for filtering audio signals using a finite impulse response filters
Autorzy:
Lipowski, Adrian
Majewski, Paweł
Pluta, Sławomir
Powiązania:
https://bibliotekanauki.pl/articles/2055238.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
audio filtering
FIR filter
FPGA
signal processing
Opis:
In this article, an analysis of an innovative system for filtering signals in the audible range (16 Hz - 20 kHz) on programmable logic devices using a filters with a finite impulse response, is presented. Mentioned system was neat combination of software and hardware platform, where in the program layer a multiple programming languages including VHDL, JavaScript, Matlab or HTML were used to create completely useful application. To determine the coefficients of polynomial filters the Matlab Filter Design & Analysis Tool was used. Thanks to the developed graphic layer, a user-friendly interface was created, which allows easily transfer the required coefficients from the computer to the executive system. The practical implementation made on the FPGA platform, specifically on the Altera DE2- 115 development kit with the FPGA Cyclone IV, was compared with simulation realization of Matlab FIR filters. The performed research confirm the effectiveness of filtration in real time with up to 128th order of the filter for both audio channels simultaneously in FPGA-based system.
Źródło:
International Journal of Electronics and Telecommunications; 2022, 68, 1; 19--26
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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