Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Żebrowski, J." wg kryterium: Autor


Tytuł:
Studies of Plasma-Focus discharges within the PF-360 facility equipped with needle D2O-ice target
Autorzy:
Baranowski, J.
Jakubowski, L.
Sadowski, M.
Zebrowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/147583.pdf
Data publikacji:
2001
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
cryogenic target
current sheath
neutrons yield
plasma focus
X-ray
Opis:
The paper describes a new technique which has been investigated in order to overcome the neutron saturation effect and to increase the neutron yield from the plasma-focus (PF) discharges [1]. The PF-360 experimental facility was constructed at the Andrzej Soltan Institute for Nuclear Studies (IPJ) in Swierk, Poland in the late 70s [4, 5]. Recently in order to improve the neutron yield from the PF-360 machine, it was proposed to use a cryogenic deuterium target, which might be placed within the plasma-focus region. For this purpose, we have been made a needle-like cryogenic target covered with a thin „heavy-ice“ layer. A considerable increase in the average neutron yield (from 1.7×1010 to about 2.2×1010 neutrons/shot) has been achieved for 122 kJ PF discharges when the needle target top was placed at a distance of about 100 mm from the electrode ends.
Źródło:
Nukleonika; 2001, 46, suppl. 1; 69-71
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Operative treatment of pressure ulcers using pedicled flaps
Autorzy:
Bielecki, M.
Bielecki, P.
Żebrowski, P.
Misiak, B.
Lewko, J.
Powiązania:
https://bibliotekanauki.pl/articles/1918770.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Surgically treated pressure ulcers
lower back pressure ulcers
ischial pressure ulcers
heel pressure ulcers
pediculate pieces
Opis:
Purpose: To present the results of surgical treatment concerning pressure ulcers. Materials and methods: All patients underwent surgical treatment at the Orthopedics and Traumatology Clinic from 1997 to 2016. One operator performed the procedures. A total of 28 pressure ulcers were operated (25 patients). The clinical material consisted of 15 pressure ulcers located in the lower back area, six pressure ulcers located in the ischial area, three pressure ulcers located in the trochanteric area and four pressure ulcers located in the heel area. Results: One conducted the result evaluation based on the criteria of complications proposed by Seiler. In case of all surgically treated patients, pressure ulcers appeared after 2-5 weeks after the surgery. One patient experienced hematoma below the slide piece. One could observe seroma in case of 5 patients. In this situation, it was required to apply a local postoperative puncture. Four patients experienced marginal skin necrosis (2 of them required resection of dead skin edges in operating block conditions which were later re-stitched using “side to side” technique). During the 3-year follow-up, there was no recurrence of operated pressure ulcers. Conclusions: Deep septic pressure ulcers, according to the division introduced by Seiler, connected with bone infection require the application of muscular-skin pieces. This procedure is aimed at improving local tissue blood supply. Proper preoperative preparation of the patient, careful planning of the surgery and suitable postoperative treatment of the patient are as significant as the surgery itself.
Źródło:
Progress in Health Sciences; 2018, 8(2); 105-111
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anisotropy of the neutron emission from PF-360 facility operated without and with solid-state targets
Autorzy:
Czaus, K.
Baranowski, J.
Sadowski, M.
Skladnik-Sadowska, E.
Zebrowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/146908.pdf
Data publikacji:
2001
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
anisotropy
beam-target mechanism
dense plasma focus (DPF)
neutron yield
thermal mechanism
Opis:
The paper reports on detailed studies of an anisotropy of the fusion-produced neutrons emitted from the modernized PF-360 facility [10], which has been operated with a pure deuterium-gas filling, without and with some additional solidstate targets containing deuterium atoms. Under standard operational conditions, anisotropy of the neutron yield from the PF-360 facility is similar to that observed in other PF devices. For the first time the neutron emission anisotropy has been measured in the PF experiments performed with a planar cryogenic target covered with a heavy-ice (D2O) layer. Changes in the Yn(Φ)/Yn(90°) ratio, particularly for angles Φ = 0–60°, have been explained by the known features of the angular distribution of fast deuterons.
Źródło:
Nukleonika; 2001, 46, suppl. 1; 77-80
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concept and model of terrain wheeled tractor with hybrid drive
Autorzy:
Deda, J.
Mirosław, T.
Żebrowski, Z.
Powiązania:
https://bibliotekanauki.pl/articles/245289.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
terrain wheeled tractor
hybrid drive
computer model of a tractor
terenowy traktor kołowy
napęd hybrydowy
model komputerowy ciągnika
Opis:
The article presents construction concept of a tractor with hybrid, diesel-hydraulic and diesel-electric drive meant for the use in livestock holdings. The tractor is enabled to cover short distances with the combustion engine switched off. This solution uses independent engines to propel front and rear axles. This article presents a computer model and simulation results for the project of a hybrid, diesel-electric tractor based on a benchmark machine Fendt 516. Aside from the ability to drive with diesel engine switched off, the proposed solution has additional positive features allowing smooth transition of relation of peripheral speed of the front and rear wheels. It enables to obtain higher tractive powers for various conditions in a broader range than for a traditional solution (with propelling both axles with one engine through different transmission systems and specific difference of peripheral speed of the wheels). The computer model was built on the basis of the benchmark machine.
Źródło:
Journal of KONES; 2018, 25, 1; 59-65
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of ISTTOK runaway - electrons energies by means of a Cherenkov - type probe with modified AlN radiators
Autorzy:
Jakubowski, L.
Plyusnin, V. V.
Sadowski, M. J.
Zebrowski, J.
Malinowski, K.
Rabiński, M.
Fernandes, H.
Silva, C.
Duarte, P.
Jakubowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/147516.pdf
Data publikacji:
2012
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
ISTTOK
runaway electrons
Cherenkov detector
AlN radiators
Opis:
Measurements of fast electrons, as performed during recent few years in small tokamaks, demonstrated that detectors based on the Cherenkov effect are very useful tools for such studies. The modernized measuring heads, which were equipped with miniature aluminum-nitride (AlN) radiators, enabled to determine locations and instants of the fast electrons emission and to estimate their energy. A comparison of four measuring channels showed that in ISTTOK the most important role was played by electrons of energy less than 90 keV.
Źródło:
Nukleonika; 2012, 57, 2; 177-181
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelowanie układu napędowego ciągnika z napędem na cztery koła
Modelling of a driving system of a four-wheel drive tractor
Autorzy:
Kolator, B.
Żebrowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/211123.pdf
Data publikacji:
2008
Wydawca:
Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego
Tematy:
modelowanie
układ napędowy
pojazd 4×4
modelling
driving system
4WD vehicle
Opis:
W pracy przedstawiono sposób wyznaczenia wartości momentów obrotowych występujących w układzie napędowym ciągnika z napędem na cztery koła, pracującego w zmiennych warunkach trakcyjnych, stosując opracowany model matematyczny i symulacyjny program komputerowy. Program zweryfikowano porównując uzyskane wyniki symulacji z wynikami badań eksperymentalnych odpowiednio oprzyrządowanego ciągnika.
The way of torque calculation in a driving system of four-wheel drive tractor working in variable traction conditions is presented in the paper. Calculation is based on the developed mathematical model and simulation software. The software was verified by comparison of simulation results with experimental ones.
Źródło:
Biuletyn Wojskowej Akademii Technicznej; 2008, 57, 3; 349-360
1234-5865
Pojawia się w:
Biuletyn Wojskowej Akademii Technicznej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measurements of electron and ion beams emitted from the PF-1000 device in the upstream and downstream direction
Autorzy:
Kwiatkowski, R.
Skladnik-Sadowska, E.
Malinowski, K.
Sadowski, M. J.
Czaus, K.
Zebrowski, J.
Karpinski, L.
Paduch, M.
Scholz, M.
Garkusha, I. E.
Kubeš, P.
Powiązania:
https://bibliotekanauki.pl/articles/146626.pdf
Data publikacji:
2011
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
electron beam (EB)
ion beams
PF-1000 facility
magnetic analyzer
ion pinhole cameras (IPC)
Opis:
In this paper we report on measurements of the energy spectra and other properties of the electron and fast ion beams emitted in the upstream and downstream direction along the z-axis of a large plasma focus device PF-1000, that was operated at 21-27 kV, delivering 290–480 kJ pulse. Measurements of the electron beam (EB) properties were performed using a magnetic analyzer. Properties of the ion beams were measured by means of pinhole cameras equipped with PM-355 nuclear track detectors and placed at various angles (0, 60 and 180 centigrade) to the discharge axis. Measurements revealed a complex spatial structure of the fast ion beams. The ion measurements behind the PF-1000 collector proved that some fast deuterons are emitted also in the upstream direction. Measurements of the EBs emitted in the upstream and downstream direction revealed electron energies in the range from approximately 40 keV to approximately 800 keV. These spectra confirm that in localized regions within the PF-1000 plasma column there appear strong fields accelerating charged particles in different directions along the discharge axis.
Źródło:
Nukleonika; 2011, 56, 2; 119-123
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research on spatial and energetic characteristics of the ion beams emitted in the PF - 360 discharges
Autorzy:
Kwiatkowski, R.
Skladnik-Sadowska, E.
Malinowski, K.
Sadowski, M. J.
Czaus, K.
Zebrowski, J.
Garkusha, I. E.
Powiązania:
https://bibliotekanauki.pl/articles/147918.pdf
Data publikacji:
2012
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
ion beams
PF-360 facility
ion pinhole images
Opis:
Experimental results are presented on the spatial structure and energetic characteristics of the fast ion beams produced by high-current discharges in a PF-360 device operated at the National Centre for Nuclear Research (NCBJ, Otwock/Świerk, Poland). The 105 kJ discharges were initiated at the initial deuterium pressure around p0 = 6 hPa and were powered from a 234 miF capacitor bank charged up to 30 kV. The spatial structure of the ion beams was recorded using pinhole cameras equipped with the solid-state nuclear track detectors of the PM-355 type, placed at two different angles (0 centigrade, 45 centigrade) relative to the discharge axis. The detectors were shielded by thin absorption filters made of pure Al foils of various thickness, which made it possible to record only ions with energies exceeding a chosen threshold value. Similarly as in other plasma focus (PF) experiments, energies of the emitted ions ranged from about 30 keV to about 3 MeV, i.e. they were much higher than the voltage applied to the electrodes. The recorded ion images showed a complex spatial structure of the fast ion beams, which consisted of many micro-beams of different energies. It is possible that these beams were emitted by various local micro-sources (e.g. plasma micro-diodes) the were formed inside the PF pinch column.
Źródło:
Nukleonika; 2012, 57, 1; 67-74
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Time - and space - resolved measurements of high - energy ion beams emitted from PF - type discharges
Autorzy:
Kwiatkowski, R.
Sadowski, M. J.
Skladnik-Sadowska, E.
Zebrowski, J.
Malinowski, K.
Czaus, K.
Garkusha, I. E.
Powiązania:
https://bibliotekanauki.pl/articles/147518.pdf
Data publikacji:
2012
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
ion beams
miniature scintillation detectors
PF-360 facility
Opis:
The paper presents experimental studies of the spatial-microstructure and temporal-characteristics of fast ion beams, which are emitted from high-current plasma-focus (PF) discharges performed within the PF-360 facility at National Centre for Nuclear Research (NCBJ) at Otwock/Świerk, Poland. The spatial structure of the ion beams was investigated by means of pinhole cameras equipped with solid-state nuclear track detectors shielded by absorption filters made of Al-foils of different thickness. In order to perform time-resolved measurements there were applied miniature scintillation detectors placed at different points of the ion-image plane.
Źródło:
Nukleonika; 2012, 57, 2; 211-214
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calibration and applications of modern track detectors CR-39/PM-355 in nuclear physics and high temperature plasma experiments
Autorzy:
Malinowska, A.
Szydłowski, A.
Jaskóła, M.
Korman, A.
Sartowska, B.
Sadowski, M. J.
Badziak, J.
Żebrowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/146906.pdf
Data publikacji:
2008
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
PM-355 detectors
corpuscular diagnostics
nuclear-fusion applications
Opis:
Solid-state nuclear track detectors (SSNTDs) have been used for the registration of charged particles practically since the beginning of the 1960s, when a new class of detectors, called dielectric track detectors, were discovered. The paper describes applications of the SSNTDs type PM-355 for diagnostics of fusion-reaction protons and other ions emitted from plasma focus (PF) devices, tokamaks and laser facilities. Such detectors were also used in biomedical experiments for beam profile measurements. The results of our calibration studies of SSNTDs as well as charged particle- and biomedical measurements, which were carried out within different facilities, are presented.
Źródło:
Nukleonika; 2008, 53, suppl. 2; 15-19
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intercomparison of radon CR-39 detector systems conducted in CLORs calibration chamber
Autorzy:
Mamont-Cieśla, K.
Stawarz, O.
Karpińska, M.
Kapała, J.
Kozak, K.
Grządziel, D.
Chałupnik, S.
Chmielewska, I.
Olszewski, J.
Przylibski, T. A.
Żebrowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/148842.pdf
Data publikacji:
2010
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
radon-222
CR-39 track detector
intercomparison
RadoSys
Opis:
Six radon laboratories, which perform indoor radon measurements to jointly investigate temporal variations of radon concentration in houses in a couple of regions in Poland, participated in the intercomparison exercise. There are involved three commercially available Hungarian RadoSys systems and four own laboratory methods. All of them are based on the etched-track CR-39 detectors. The intercomparison was conducted in a calibration laboratory of the Central Laboratory for Radiological Protection (CLOR), Warsaw, Poland, accredited by the Polish Center for Accreditation (previously AP 101, at present AP 057). Comparison measurements were performed during three expositions in the CLOR’s radon calibration chamber under controlled normal climatic conditions and steady radon concentration. The results were referred to the value of the radon concentration determined by AlphaGUARD monitor traceable to the primary 222Rn standard in Physikalisch-Technische Bundesanstalt (PTB), Braunchweig, Germany. The mean performance ratio defined as a ratio of the reference to participant’s result range from 0.88 to 1.31.
Źródło:
Nukleonika; 2010, 55, 4; 589-593
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reakcja traw gazonowych na zachwaszczenie
Autorzy:
Pronczuk, S.
Pronczuk, M.
Zylka, D.
Zebrowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/801637.pdf
Data publikacji:
2001
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2001, 474
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
"Dialektyka cudzego nieszczęścia". Cz. 1-2
Autorzy:
Ptasiński, Jan.
Chodakiewicz, Marek J.
Żebrowski, Leszek (1955- ).
Powiązania:
Głos Kombatanta Armii Ludowej 1999, nr 4, s. 6-13; nr 5, s. 8-11
Data publikacji:
1999
Tematy:
Korczyński, Grzegorz
Polska Partia Robotnicza (1942-1948)
Oddział Partyzancki im. Obrońców Getta GL-AL Wyszków (okręg)
II wojna światowa (1939-1945)
Konspiracja
Opis:
W nawiązaniu do tekstów Marka J. Chodakiewicza i Leszka Żebrowskiego "Podziemie komunistyczne wobec Żydów", "Żydowskie oddziały GL-AL im. >>Obrońców Getta<< w lasach wyszkowskich".
Dostawca treści:
Bibliografia CBW
Artykuł
Tytuł:
Comparison of characteristics of pulsed ion beams emitted from different small PF devices
Autorzy:
Sadowski, M.
Skladnik-Sadowska, E.
Baranowski, J.
Zebrowski, J.
Kelly, H.
Lepone, A.
Marquez, A.
Milanese, M.
Moroso, R.
Pouzo, J.
Powiązania:
https://bibliotekanauki.pl/articles/146809.pdf
Data publikacji:
2000
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
Faraday cups
ion beams
plasma focus
Thomson analyzers
track detectors
Opis:
The paper concerns studies of pulsed ion beams emitted from different small-energy (5–50 kJ) devices of the plasma focus (PF) type. Emission characteristics of the ion beams as measured with nuclear track detectors (NTDs), Faraday-type collectors (FC), and Thomson-type analyzers, are summarized. Common features of the ion emission are considered and some differences are discussed.
Źródło:
Nukleonika; 2000, 45, 3; 179-184
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelowanie zużycia narzędzi w automatycznych liniach produkcyjnych
Modeling the consumption of tools in automatic production lines
Autorzy:
Skierniewski, J.
Piątkowski, Z.
Żebrowski, W.
Powiązania:
https://bibliotekanauki.pl/articles/228826.pdf
Data publikacji:
2012
Wydawca:
Wyższa Szkoła Menedżerska w Warszawie
Opis:
W artykule przedstawiono, w jaki sposób formy organizacji wymian zużytych narzędzi w automatycznej linii produkcyjnej wpływają (dla określonego czasu funkcjonowania linii) na liczbę przedmiotów w niej wytwarzanych.
The article presents the ways in which the forms of organization of exchanging the used tools in automatic production line affects (for a specified time of functioning of the line) the amount of items produced in it.
Źródło:
Postępy Techniki Przetwórstwa Spożywczego; 2012, 2; 151-159
0867-793X
2719-3691
Pojawia się w:
Postępy Techniki Przetwórstwa Spożywczego
Dostawca treści:
Biblioteka Nauki
Artykuł

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies