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    Wyświetlanie 1-15 z 15
    Tytuł:
    Data processing of the ASG-EUPOS network test campaign
    Autorzy:
    Jaworski, L.
    Świątek, A.
    Zdunek, R.
    Zieliński, J. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/225178.pdf
    Data publikacji:
    2008
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    ASG-EUPOS
    GNSS
    sieci geodezyjne
    geodetic networks
    Źródło:
    Reports on Geodesy; 2008, z. 2/85; 113-124
    0867-3179
    Pojawia się w:
    Reports on Geodesy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geodynamic research at the Department of Planetary Geodesy, SRC PAS
    Autorzy:
    Brzeziński, A.
    Jóźwik, M.
    Kaczorowski, M.
    Kalarus, M.
    Kasza, D.
    Kosek, W.
    Nastula, J.
    Szczerbowski, Z.
    Wińska, M.
    Wronowski, R.
    Zdunek, R.
    Zieliński, J. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/106813.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Warszawska. Wydział Geodezji i Kartografii
    Tematy:
    Department of Planetary Geodesy
    geodynamic research
    Wydział Geodezji Planetarnej
    badania geodynamiczne
    Opis:
    The Department of Planetary Geodesy of the Space Research Centre PAS has been conducting research on a broad spectrum of problems within a field of global dynamics of the Earth. In this report we describe the investigations on selected subjects concerning polar motion (modeling and geophysical interpretation of the Chandler wobble, hydrological excitation of seasonal signals, search for optimal prediction methods), tectonic activity in the region of the Książ Geodynamic Laboratory of the SRC, and finally the new joint Polish-Italian project GalAc analyzing feasibility and usefulness of equipping second-generation Galileo satellites with accelerometers.
    Źródło:
    Reports on Geodesy and Geoinformatics; 2016, 100; 131-147
    2391-8365
    2391-8152
    Pojawia się w:
    Reports on Geodesy and Geoinformatics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rubus bohemo-polonicus [Rosaceae] - a new species of bramble from the Czech Republic and Poland
    Autorzy:
    Zielinski, J
    Travnicek, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/57013.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    Rosaceae
    Polska
    Rubus bohemo-polonicus
    Czech Republic
    botany
    new species
    bramble
    Opis:
    Rubus bohemo-polonicus Travnicek & Zieliński, a regional species belonging to series Radula (Focke) Focke, is described from the Czech Republic and Poland. It differs from closely related species (R. radula Weihe, R. salisburgensis Focke ex Caflisch and R. indusiatus Focke) mainly by the almost glabrous stems and consistently white petals. Illustrations and a distribution map of the new species are provided.
    Źródło:
    Acta Societatis Botanicorum Poloniae; 2004, 73, 4
    0001-6977
    2083-9480
    Pojawia się w:
    Acta Societatis Botanicorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Climate evolution during the Pleniglacial and Late Glacial as recorded in quartz grain morphoscopy of fluvial to aeolian successions of the European Sand Belt
    Autorzy:
    Woronko, B.
    Zieliński, P.
    Sokołowski, R. J.
    Powiązania:
    https://bibliotekanauki.pl/articles/94408.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    fluvial to aeolian succession
    aeolization of quartz sand grains
    periglacial conditions
    extraglacial zone
    eolizacja ziaren piasku
    piasek kwarcowy
    warunki peryglacjalne
    Opis:
    We present results of research into fluvial to aeolian successions at four sites in the foreland of the Last Glacial Maximum, i.e., the central part of the “European Sand Belt”. These sites include dune fields on higher-lying river terraces and alluvial fans. Sediments were subjected to detailed lithofacies analyses and sampling for morphoscopic assessment of quartz grains. Based on these results, three units were identified in the sedimentary succession: fluvial, fluvio-aeolian and aeolian. Material with traces of aeolian origin predominate in these sediments and this enabled conclusions on the activity of aeolian processes during the Pleniglacial and Late Glacial, and the source of sediment supply to be drawn. Aeolian processes played a major role in the deposition of the lower portions of the fluvial and fluvio-aeolian units. Aeolian material in the fluvial unit stems from aeolian accumulation of fluvial sediments within the valley as well as particles transported by wind from beyond the valley. The fluvio-aeolian unit is composed mainly of fluvial sediments that were subject to multiple redeposition, and long-term, intensive processing in an aeolian environment. In spite of the asynchronous onset of deposition of the fluvio-aeolian unit, it is characterised by the greatest homogeneity of structural and textural characteristics. Although the aeolian unit was laid down simultaneously, it is typified by the widest range of variation in quartz morphoscopic traits. It reflects local factors, mainly the origin of the source material, rather than climate. The duration of dune-formation processes was too short to be reflected in the morphoscopy of quartz grains.
    Źródło:
    Geologos; 2015, 21, 2; 89-103
    1426-8981
    2080-6574
    Pojawia się w:
    Geologos
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Measuring Coupling Forces Woodcutters Exert on Saws in Real Working Conditions
    Autorzy:
    Malinowska-Borowska, J.
    Harazin, B.
    Zieliński, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/90357.pdf
    Data publikacji:
    2012
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    coupling forces
    hydro-electronic force meter
    chainsaw
    vibration exposure
    Opis:
    Prolonged exposure to hand–arm vibration (HAV) generated by chainsaws can cause HAV syndrome, i.e., disorders in the upper extremities of forestry workers. Progress of HAV syndrome depends on the intensity of mechanical vibration transmitted throughout the body, which is directly proportional to coupling forces applied by the woodcutter to a vibrating tool. This study aimed to establish a method of measuring coupling forces exerted by chainsaw workers in real working conditions. Coupling forces exerted by workers with their right and left hands were measured with a hydro-electronic force meter. Wood hardness, the type of chainsaw and the kind of forest operation, i.e., felling, cross-cutting or limbing, were considered.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2012, 18, 1; 77-83
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The silting-up prevention in the geothermal absorbent openings of Geothermal Energy Plant Pyrzyce
    Autorzy:
    Noga, B.
    Marjanowski, J.
    Biernat, H.
    Kulik, S.
    Zieliński, B.
    Nalikowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/184948.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    energia geotermalna
    absorpcja
    geothermal energy
    absorption openings
    silting-up
    soft acidising
    super soft acidising
    Opis:
    The paper presents precipitation results from cold thermal water deposits that are the main cause of clogging in absorbent geothermal wells and borehole areas. As a result of physical and chemical analysis, laboratory tests and observation of the operation of a geothermal installation, a new method was developed to prevent the precipitation of sludge from cooled thermal water. The method being a modification of soft acidising was tentatively named as a super soft acidising method.
    Źródło:
    Chemical and Process Engineering; 2014, 35, 2; 205-216
    0208-6425
    2300-1925
    Pojawia się w:
    Chemical and Process Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Weekly urban water demand forecasting using a hybrid waveletbootstrap-artificial neural network approach
    Tygodniowa prognoza zapotrzebowania na wodę w obszarach miejskich określana metodą hybrydową z wykorzystaniem transformaty falkowej-bootstrapu-sztucznej sieci neuronowej
    Autorzy:
    Adamowski, K.
    Adamowski, J.F.
    Seidou, O.
    Ozga-Zielinski, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/81757.pdf
    Data publikacji:
    2014
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Opis:
    This study developed a hybrid wavelet–bootstrapartifi cial neural network (WBANN) model for weekly (one week) urban water demand forecasting in situations with limited data availability. The proposed WBANN method is aimed at improving the accuracy and reliability of water demand forecasting. Daily maximum temperature, total precipitation and water demand data for almost three years were used in this study. It was concluded that the hybrid WBANN model was more accurate compared to the ANN, BANN and WANN methods, and can be applied successfully for operational water demand forecasting. The WBANN model simulated peak water demand very effectively. The better performance of the WBANN model indicated that wavelet analysis signifi cantly improved the model’s performance, whereas the bootstrap technique improved the reliability of forecasts by producing ensemble forecasts. The WBANN model was also found to be effective in assessing the uncertainty associated with water demand forecasts in terms of confi dence bands; this can be helpful in operational water demand forecasting.
    W artykule zaproponowano hybrydowy model (WBANN) wykorzystujący transformatę falkową, bootstrap i sztuczną sieć neuronową do opracowania tygodniowej prognozy zapotrzebowania na wodę w obszarach miejskich przy ograniczonej dostępności danych. Proponowany model WBANN ma na celu poprawę trafności i niezawodności prognozowania zaopatrzenia w wodę. W analizach wykorzystane zostały dobowe wartości maksymalnej temperatury, sumy opadów i zapotrzebowania na wodę z 3-letniego okresu obserwacji. Stwierdzono, że hybrydowy model WBANN jest dokładniejszy od modeli ANN, BANN i WANN i z powodzeniem może być użyty do operacyjnego prognozowania zapotrzebo zapotrzebowania na wodę. Model WBANN bardzo skutecznie prognozuje szczytowy popyt na wodę. Dobre wyniki otrzymane z modelu WBANN świadczą o tym, że zastosowana analiza falkowa znacząco poprawiła dokładność modelu, a metoda bootstrapu polepszyła niezawodność (wiarygodność) modelu poprzez prognozowanie ensemblowe. Ocena niepewności z zastosowaniem przedziału ufności wykazała dużą trafność prognoz generowanych przez model WBANN oraz jego przydatność w operacyjnym wykorzystaniu.
    Źródło:
    Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation; 2014, 46, 3
    0208-5771
    Pojawia się w:
    Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Depositional conditions on an alluvial fan at the turn of the Weichselian to the Holocene – a case study in the Żmigród Basin, southwest Poland
    Autorzy:
    Zieliński, P.
    Sokołowski, R. J.
    Fedorowicz, S.
    Woronko, B.
    Hołub, B.
    Jankowski, M.
    Kuc, M.
    Tracz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/94513.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    climate change
    periglacial environment
    fluvial processes
    aeolian processes
    luminescence dating
    zmiana klimatu
    środowisko peryglacjalne
    procesy fluwialne
    procesy eoliczne
    datowanie luminescencyjne
    Opis:
    Presented are the results of research into the fluvio-aeolian sedimentary succession at the site of Postolin in the Żmigród Basin, southwest Poland. Based on lithofacies analysis, textural analysis, Thermoluminescence and Infrared-Optical Stimulated Luminescence dating and GIS analysis, three lithofacies units were recognised and their stratigraphic succession identified: 1) the lower unit was deposited during the Pleni-Weichselian within a sand-bed braided river functioning under permafrost conditions within the central part of the alluvial fan; 2) the middle unit is the result of aeolian deposition and fluvial redeposition on the surface of the fan during long-term permafrost and progressive decrease of humidity of the climate at the turn of the Pleni to the Late Weichselian; 3) the upper unit accumulated following the development of longitudinal dunes at the turn of the Late Weichselian to the Holocene; the development of dunes was interrupted twice by the form being stabilised by vegetation and soil development.
    Źródło:
    Geologos; 2016, 22, 2; 105-120
    1426-8981
    2080-6574
    Pojawia się w:
    Geologos
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    X-ray Characterization of Films Formed by Pulsed Laser Deposition on Cold Substrates from YBaCuO Targets
    Autorzy:
    Pełka, J. B.
    Paszkowicz, W.
    Gierłowski, P.
    Lewandowski, S. J.
    Zieliński, M.
    Barbanera, S.
    Knapp, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2030707.pdf
    Data publikacji:
    2002-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    52.38.Mf
    81.15.-z
    68.55.-a
    Opis:
    Grazing-incidence X-ray diffraction supplemented with atomic force microscopy and secondary ion mass spectroscopy were applied to the characterization of films deposited by laser ablation on cold substrates from YBaCuO targets and subsequently irradiated with additional laser pulses of lower energy density. Evolution of X-ray diffraction pattern was observed as a function of irradiation dose. For the as-deposited films the pattern was typical of the amorphized solids. For the films irradiated with doses higher than the threshold, the pattern was enriched with the diffraction peaks, whose general features, like peak positions, widths and relative intensities were almost independent of the dose. The size of the crystallites was deduced from the peak widths to be not smaller than 12-16 nm. Comparison of the pattern with patterns of known phases indicates that, apart of the amorphous component, a structure with an admixture of some new metastable or high temperature phase(s) is formed during the process of pulsed laser annealing. The atomic force microscopy observations revealed that the surface roughness shows a pronounced minimum at low irradiation doses. The secondary ion mass spectroscopy investigation confirms that the strongest chemical changes (increase in concentration of yttrium and copper) due to irradiation with higher doses are observed in the near-surface film material.
    Źródło:
    Acta Physica Polonica A; 2002, 101, 5; 787-794
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A hybrid (hydro-numerical) circulatory model: investigations of mechanical aortic valves and a numerical valve model
    Autorzy:
    Kozarski, M.
    Suwalski, P.
    Zieliński, K.
    Górczyńska, K.
    Szafron, B.
    Pałko, K. J.
    Smoczyński, R.
    Darowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/202199.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    biological and mechanical heart valves
    numerical heart valve
    hybrid (hydro-numerical) circulatory model
    voltage-controlled hydraulic pressure (flow) source
    hydraulic input impedance
    varying-elastance left ventricle
    Opis:
    In most cases of diseased heart valves, they can be repaired or replaced with biological or mechanical prostheses. Biological prostheses seem to be safer than mechanical ones and are applied with good clinical outcomes. Their disadvantage, when compared with mechanical valves, is durability. In the development and application of mechanical and biological heart valves, a significant role can be played by a Hybrid (Hydro-Numerical) Circulatory Model. The aim of this paper is to demonstrate the opportunities created by the hybrid model for investigations of mechanical heart valves and their computer models under conditions similar to those of the circulatory system. A diode-resistor numerical valve model and three different design mechanical aortic valves were tested. To perform their investigations, computer applications were developed under RT LabView to be run on a PC. Static and dynamic characteristics of the valves were measured and registered - pressure in the numerical time-varying elastance left ventricle (pLV), in the aorta (pas) and flow (f), proving, among other factors, that 1) time delay of pas with respect to pLV is mainly related to the valve’s opening time, and 2) the valves of substantially different designs tested under identical hydrodynamic conditions reveal nearly the same dynamic performance.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 3; 605-612
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnons in Cubic MBE-Grown A$\text{}_{1-x}$Mn$\text{}_{x}$Te Layers (A = Cd, Zn, Mg)
    Autorzy:
    Szuszkiewicz, W.
    Hennion, B.
    Jouanne, M.
    Morhange, J. F.
    Dynowska, E.
    Janik, E.
    Wojtowicz, T.
    Zieliński, M.
    Furdyna, J. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1992341.pdf
    Data publikacji:
    1998-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.12.-q
    75.50.Pp
    78.30.-j
    Opis:
    One-magnon excitations in MBE-grown A$\text{}_{1-x}$Mn$\text{}_{x}$Te layers (where A = Cd, Zn, Mg and x>0.7) were investigated by means of the Raman scattering measurements at low temperatures (≈20 K). The composition dependence of the anisotropy energy - as extracted from these measurements - is discussed. Further, the elastic neutron scattering measurements were performed in layers of cubic MnTe, which constitute the end point material of the ternary alloys series. Abundance of variously oriented antiferromagnetic domains in MnTe layers as a function of temperature was studied. We confirm occurrence of a pronounced magnetostriction effect.
    Źródło:
    Acta Physica Polonica A; 1998, 94, 3; 583-587
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Method to Produce Linearly Polarized Positrons and Positronium Atoms with the J-PET Detector
    Autorzy:
    Mohammed, Muhsin
    Białas, P.
    Curceanu, C.
    Czerwiński, E.
    Dulski, K.
    Gajos, A.
    Głowacz, B.
    Gorgol, M.
    Hiesmayr, B.
    Jasińska, B.
    Kisielewska, D.
    Korcyl, G.
    Kowalski, P.
    Kozik, T.
    Krawczyk, N.
    Krzemień, W.
    Kubicz, E.
    Pawlik-Niedźwiecka, M.
    Niedźwiecki, S.
    Pałka, M.
    Raczyński, L.
    Raj, J.
    Rudy, Z.
    Sharma, N.
    Sharma, S.
    Shivani, ---
    Skurzok, M.
    Silarski, M.
    Wieczorek, A.
    Wiślicki, W.
    Zgardzińska, B.
    Zieliński, M.
    Moskal, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030045.pdf
    Data publikacji:
    2017-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    41.75.Fr
    41.75.Ht
    77.22.Ej
    36.10.Dr
    85.75.Mm
    87.57.uk
    Opis:
    A method for creating linearly polarized positrons and ortho-positronium (o-Ps) atoms with the J-PET detector is presented. The unique geometry and properties of the J-PET tomography enable one to design a positron source such that the quantization axis for the estimation of the linear polarization of produced o-Ps can be determined on the event by event basis in a direction of the positron motion. We intend to use ²²Na or other β⁺ decay isotopes as a source of polarized positrons. Due to the parity violation in the beta decay, the emitted positrons are longitudinally polarized. The choice of the quantization axis is based on the known position of the positron emitter and the reconstructed position of the positronium annihilation. We show that the J-PET tomography is equipped with all needed components.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 5; 1486-1489
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Time Calibration of the J-PET Detector
    Autorzy:
    Skurzok, M.
    Silarski, M.
    Alfs, D.
    Białas, P.
    Shivani, S.
    Curceanu, C.
    Czerwiński, E.
    Dulski, K.
    Gajos, A.
    Głowacz, B.
    Gorgol, M.
    Hiesmayr, B.
    Jasińska, B.
    Kisielewska-Kamińska, D.
    Korcyl, G.
    Kowalski, P.
    Kozik, T.
    Krawczyk, N.
    Krzemień, W.
    Kubicz, E.
    Mohammed, Muhsin
    Pawlik-Niedźwiecka, M.
    Niedźwiecki, S.
    Pałka, M.
    Raczyński, L.
    Raj, J.
    Rudy, Z.
    Sharma, N.
    Sharma, S.
    Shopa, R.
    Wieczorek, A.
    Wiślicki, W.
    Zgardzińska, B.
    Zieliński, M.
    Moskal, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1033283.pdf
    Data publikacji:
    2017-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    06.20.fb
    36.10.Dr
    11.30.Er
    24.80.+y
    Opis:
    The Jagiellonian positron emission tomograph project carried out in the Institute of Physics of the Jagiellonian University is focused on construction and tests of the first prototype of PET scanner for medical diagnostic which allows for the simultaneous 3D imaging of the whole human body using organic scintillators. The J-PET prototype consists of 192 scintillator strips forming three cylindrical layers which are optimized for the detection of photons from the electron-positron annihilation with high time-and high angular resolutions. In this article we present time calibration and synchronization of the whole J-PET detection system by irradiating each single detection module with a ²²Na source and a small detector providing common reference time for synchronization of all the modules.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 5; 1641-1644
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis Procedure of the Positronium Lifetime Spectra for the J-PET Detector
    Autorzy:
    Dulski, K.
    Zgardzińska, B.
    Białas, P.
    Curceanu, C.
    Czerwiński, E.
    Gajos, A.
    Głowacz, B.
    Gorgol, M.
    Hiesmayr, B.
    Jasińska, B.
    Kisielewska-Kamińska, D.
    Korcyl, G.
    Kowalski, P.
    Kozik, T.
    Krawczyk, N.
    Krzemień, W.
    Kubicz, E.
    Mohammed, Muhsin
    Pawlik-Niedźwiecka, M.
    Niedźwiecki, S.
    Pałka, M.
    Raczyński, L.
    Raj, J.
    Rudy, Z.
    Sharma, N.
    Sharma, S.
    Shivani, Shivani
    Shopa, R.
    Silarski, M.
    Skurzok, M.
    Wieczorek, A.
    Wiślicki, W.
    Zieliński, M.
    Moskal, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1033298.pdf
    Data publikacji:
    2017-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    07.05.Kf
    13.30.Ce
    14.60.-z
    78.47.-p
    Opis:
    Positron annihilation lifetime spectroscopy has shown to be a powerful tool to study the nanostructures of porous materials. Positron emission tomograph is a device allowing imaging of metabolic processes e.g. in human bodies. A newly developed device, the Jagiellonian PET will allow positron annihilation lifetime spectroscopy in addition to imaging, thus combining both analyses providing new methods for physics and medicine. In this contribution we present a computer program that is compatible with the Jagiellonian PET software. We compare its performance with the standard program LT 9.0 by using positron annihilation lifetime spectroscopy data from hexane measurements at different temperatures. Our program is based on an iterative procedure, and our fits prove that it performs as good as LT 9.0.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 5; 1637-1640
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary studies of J-PET detector spatial resolution
    Autorzy:
    Pawlik-Niedźwiecka, M.
    Niedźwiecki, S.
    Alfs, D.
    Białas, P.
    Curceanu, C.
    Czerwiński, E.
    Dulski, K.
    Gajos, A.
    Głowacz, B.
    Gorgol, M.
    Hiesmayr, B.
    Jasińska, B.
    Kisielewska, D.
    Korcyl, G.
    Kowalski, P.
    Kozik, T.
    Krawczyk, N.
    Krzemień, W.
    Kubicz, E.
    Mohammed, M.
    Pałka, M.
    Raczyński, L.
    Raj, J.
    Rudy, Z.
    Shivani, -
    Silarski, M.
    Skurzok, M.
    Sharma, N.
    Sharma, S.
    Shopa, R.
    Strzelecki, A.
    Wieczorek, A.
    Wiślicki, W.
    Zgardzińska, B.
    Zieliński, M.
    Moskal, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/1057928.pdf
    Data publikacji:
    2017-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    29.40.Mc
    87.57.uk
    87.10.Rt
    34.50.-s
    Opis:
    The J-PET detector, based on long plastic scintillator strips, was recently constructed at the Jagiellonian University. It consists of 192 modules axially arranged into three layers, read out from both sides by digital constant-threshold front-end electronics. This work presents preliminary results of measurements of the spatial resolution of the J-PET tomograph performed with ²²Na source placed at selected position inside the detector chamber.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 5; 1645-1648
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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