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Wyświetlanie 1-3 z 3
Tytuł:
Compensation of supply current harmonics, reactive power, and unbalanced load current balance in the closed-loop control of a shunt active power filter
Autorzy:
Bielecka, Agata
Wojciechowski, Daniel
Powiązania:
https://bibliotekanauki.pl/articles/135289.pdf
Data publikacji:
2020
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
shunt active power filter (SAPF)
harmonic compensation
reactive power compensation
prediction
closed-loop
open-loop
Opis:
This paper presents the compensation tasks performed by a shunt active power filter, including compensation of harmonic currents, reactive power, and an unbalanced load current. The paper demonstrates novel control of the shunt active power filter in a closed-loop system. The control algorithm was verified by performing simulations and compared the simulated results with those obtained in an open-loop control system. All simulations were conducted in the PLECS program using a control algorithm written in C programming language.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2020, 61 (133); 9-16
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The “biological chamber” method – use of autologous platelet-rich plasma (PRP) in the treatment of poorly healing lower-leg ulcers of venous origin
Autorzy:
Waniczek, Dariusz
Mikusek, Wojciech
Kamiński, Tomasz
Wesecki, Mariusz
Lorenc, Zbigniew
Cieślik-Bielecka, Agata
Powiązania:
https://bibliotekanauki.pl/articles/1395656.pdf
Data publikacji:
2015-06-01
Wydawca:
Index Copernicus International
Tematy:
chronic lower-leg venous ulcer
autologous platelet-rich plasma
Opis:
Wound healing is a complex pathophysiological process, in which platelets play a crucial role. Platelet alpha-granules release growth factors to the wound bed; the factors are necessary in the healing process. In chronic wounds, such as poorly healing lower-leg ulcers of venous origin, there is decreased activity of multiple growth factors, so the concept of exogenous delivery of such factors seems a logical strategy. Platelet-rich plasma therapy in patients with lower-leg ulcers of venous origin combined with conventional treatment methods (previously ineffective in these patients) seems, based on our observation, an important adjunct leading to recovery. The aim of the study was to present an original method of autologous platelet-rich plasma application through the creation of a sort of “biological chamber” containing a concentrate of growth factors. Material and methods. The described therapy was implemented in 10 patients, who had been ineffectively treated for more than one year in the outpatient setting. Patients with exacerbation of inflammatory process, signs of wound infection and ankle brachial pressure index < 0.8 were excluded from the study. After the application of platelet-rich plasma, further treatment was continued with the use of moist therapy and compression therapy according to a uniform regimen. Results. Complete healing was achieved within 4-10 weeks from the beginning of the product administration in all patients. Conclusion. The presented method seems technically simple, effective and relatively inexpensive
Źródło:
Polish Journal of Surgery; 2015, 87, 6; 283-289
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diversity of influenza-like illness etiology in Polish Armed Forces in influenza epidemic season
Autorzy:
Kocik, Janusz
Niemcewicz, Marcin
Winnicka, Izabela
Michalski, Aleksander
Bielawska-Drózd, Agata
Kołodziej, Marcin
Joniec, Justyna
Cieślik, Piotr
Graniak, Grzegorz
Mirski, Tomasz
Gaweł, Jerzy
Bielecka-Oder, Anna
Kubiak, Leszek
Russell, Kevin
Powiązania:
https://bibliotekanauki.pl/articles/1039252.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Influenza
ILI
surveillance
Polish Army
Opis:
The aim of this study was to conduct an epidemiological and laboratory surveillance of Influenza-Like Illnesses (ILI) in Polish Armed Forces, civilian military personnel and their families in 2011/2012 epidemic season, under the United States Department of Defense-Global Emerging Infections Surveillance and Response System (DoD-GEIS). ILI incidence data were analyzed in relation to age, gender, patient category as well as pathogen patterns. Multiple viral, bacterial and viral-bacterial co-infections were identified. Nose and throat swabs of active duty soldiers in the homeland country and in the NATO peacekeeping forces KFOR (Kosovo Force), as well as members of their families were tested for the presence of viral and bacterial pathogens. From October 2011 to May 2012, 416 specimens from ILI symptoms patients were collected and analyzed for the presence of viral and bacterial pathogens. Among viruses, coronavirus was the most commonly detected. In the case of bacterial infections, the most common pathogen was Staphylococcus aureus.
Źródło:
Acta Biochimica Polonica; 2014, 61, 3; 489-494
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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