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

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    Wyświetlanie 1-13 z 13
    Tytuł:
    Analysis of the amino acid sequences of 18S RNA strains of Babesia canis isolated from dogs, including the analysis of serum proteome of protozoa infected dogs
    Autorzy:
    Lyp, P.
    Winiarczyk, S.
    Rogalski, J.
    Adaszek, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/5616.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Źródło:
    Annals of Parasitology; 2019, 65, 2
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cold cracking of S460N steel welded in water environment
    Autorzy:
    Tomków, J.
    Łabanowski, J.
    Fydrych, D.
    Rogalski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/258574.pdf
    Data publikacji:
    2018
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    underwater welding
    wet welding
    high-strength low-alloy steel
    cold cracking
    CTS test
    Opis:
    This paper shows results of weldability testing of fine-grained high -strength low- alloy S460N steel welded in water environment by covered electrodes. The tests were carried out by using the CTS test specimens with fillet welds. Four specimens were welded under water and one specimen in air. Welded joints were subjected to non-destructive visual and penetration tests. The accepted joints were then subjected to macroscopic and microscopic inspection and Vickers hardness measurements as well. The experiments showed that S460N steel welded in water environment is characterized by a high susceptibility to cold cracking.
    Źródło:
    Polish Maritime Research; 2018, 3; 131-136
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bead-on-plate welding on S235JR steel by underwater local dry chamber process
    Autorzy:
    Rogalski, G.
    Łabanowski, J.
    Fydrych, D.
    Tomków, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/260232.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    maximum hardness of the heat affected zone
    welding under water
    dry chamber process
    Opis:
    The article presents the results of the effect of parameters of underwater local dry chamber welding on the properties of padding welds. The effect of heat input and the type of shielding gas on the structure and hardness of welds was established. the functions for estimating the maximum hardness of the heat affected zone have been also elaborated.
    Źródło:
    Polish Maritime Research; 2014, 2; 58-64
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Weldability of high strength steels in wet welding conditions
    Autorzy:
    Fydrych, D.
    Łabanowski, J.
    Rogalski, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/258484.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    underwater welding
    steel weldability
    cold cracking
    wet welding
    cracks in welds
    improving weldability
    Opis:
    In this paper are characterized problems of high strength steel weldability in underwater wet welding conditions. Water as a welding environment intensifies action of unfavourable factors which influence susceptibility to cold cracking of welded steel joints. The susceptibility to cold cracking of S355J2G3 steel and S500M steel in wet conditions was experimentally estimated (by using Tekken test). It was concluded that the steels in question are characterized by a high susceptibility to formation of cracks in welds. Usefulness of the proposed Temper Bead Welding technique (TBW) was experimentally verified as a method for improving weldability of the steels in the analyzed conditions.
    Źródło:
    Polish Maritime Research; 2013, 2; 67-73
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Underwater wet repair welding of API 5L X65M pipeline steel
    Autorzy:
    Rogalski, G.
    Fydrych, D.
    Łabanowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/258860.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    underwater welding
    wet welding
    underwater pipeline
    API 5L X65M steel
    Opis:
    This paper presents results of the research of effect of polymer insulation of pipeline made of API 5L X65M steel as well as underwater wet welding parameters on properties of joints made by covered electrodes. Effect of heat input on structure and hardness of joints during repair of underwater pipeline was analyzed. Welding defects like microcracks, micro-lacks of fusion, slag inclusions, as well as HAZ hardness increase over an assumed acceptance criterion for welded joints in pipes without anticorrosion polymer insulation, were identified. A significant effect of polimer insulation on structure and properties of welded joints, was found.
    Źródło:
    Polish Maritime Research; 2017, S 1; Bibliogr. 27 poz., rys., tab.
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The predictions of resistance and propulsion for 4 types of ships
    Autorzy:
    Brzoska, E.
    Grygorowicz, M.
    Rogalski, A.
    Stasiak, J.
    Szantyr, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/962774.pdf
    Data publikacji:
    2004
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    model tests
    ship resistance in calm water
    ship resistance in inegular waves
    POD propulsors
    Opis:
    In this paper the predictions of resistance and propulsion for 4 types of ships: container carrier, oil product tanker, ro-ro vessel and river-sea vessel included in the EUREKA "Baltecologicalship" project E!2772 are presented. All the above ships were designed by the SINUS Enterprise Ltd. The scope of the research covers: experimental measurement of ship resistance in calm water, determination of resistance increment in irregular waves and computational powering prediction for POD propulsors. The experiments were conducted in the Laboratory of the Department of Underwater Technology, Hydromechanics and Design of Ships, Faculty of Ocean Engineering and Ship Technology, Gdansk University of Technology.
    Źródło:
    Polish Maritime Research; 2004, S 1; 34-38
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modeling of HgCdTeLWIR detector for high operation temperature conditions
    Autorzy:
    Martyniuk, P.
    Gawron, W.
    Madejczyk, P.
    Rogalski, A.
    Piotrowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/220771.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    HgCdTe
    IR detector
    Auger suppression
    HOT detectors
    Opis:
    The paper reports on the photoelectrical performance of the long wavelength infrared (LWIR) HgCdTe high operating temperature (HOT) detector. The detector structure was simulated with commercially available software APSYS by Crosslight Inc. taking into account SRH, Auger and tunnelling currents. A detailed analysis of the detector performance such as dark current, detectivity, time response as a function of device architecture and applied bias is performed, pointing out optimal working conditions.
    Źródło:
    Metrology and Measurement Systems; 2013, 20, 2; 159-170
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of TDMAAs Acceptor Precursor on Performance Improvement of HgCdTe Photodiodes
    Autorzy:
    Madejczyk, P.
    Gawron, W.
    Piotrowski, A.
    Kłos, K.
    Rutkowski, J.
    Rogalski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1506804.pdf
    Data publikacji:
    2010-12
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.79.Pw
    07.57.Kp
    73.21.Cd
    78.67.Pt
    79.60.Jv
    Opis:
    One of the key factor which determine HgCdTe photodiode quality is acceptor doping efficiency. This paper presents significant progress made over the past three years in development of acceptor doping technology in metalorganic chemical vapour deposition HgCdTe photovoltaic detectors. High acceptor doping is required for $P^{+}$-contact layers, whereas low doping is necessary for p-type absorbing base layer. Previously, $AsH_3$ precursor was used as an acceptor dopant. This precursor is partially incorporated as electrically neutral As-H pairs, which are likely to be recombination centres in HgCdTe and in consequence influence on the carriers lifetime lowering. Substituting of $AsH_3$ by TDMAAs resulted in higher carrier lifetimes and thereby about one order of magnitude higher $R_0A$ product of HgCdTe photodiodes in temperatures close to 230 K.
    Źródło:
    Acta Physica Polonica A; 2010, 118, 6; 1199-1204
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative study of the molecular beam epitaxial growth of InAs/GaSb superlattices on GaAs and GaSb substrates
    Autorzy:
    Benyahia, D.
    Kubiszyn, Ł.
    Michalczewski, K.
    Kębłowski, A.
    Martyniuk, P.
    Piotrowski, J.
    Rogalski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1055151.pdf
    Data publikacji:
    2017-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.15.Hi
    68.65.Cd
    81.05.Ea
    61.05.cp
    Opis:
    Short period type-II 10 ML InAs/10 ML GaSb superlattices epilayers (λ_{cut-off}=5.4 μm) have been grown on near lattice matched GaSb (001) substrate and on lattice mismatched GaAs (001) substrate, by molecular beam epitaxy system. In the case of growing on GaAs substrate, GaSb buffer layer was grown in order to reduce the lattice mismatch of 7.5% between GaAs substrate and InAs/GaSb superlattices. X-ray diffraction characterization shows a good crystalline quality for both samples, with a full width at half maximum of 190 arcsec and 156 arcsec for the zeroth-order peak of the superlattice grown on GaAs and on GaSb substrate, respectively. The Nomarski microscopy revealed a shiny surface for both samples with a root main square of surface roughness of 9 nm and 11 nm on the case of growing on GaSb and GaAs substrate, respectively.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 2; 322-324
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Studies of dark current reduction in InAsSb mid-wave infrared HOT detectors through two step passivation technique
    Autorzy:
    Michalczewski, K.
    Ivaldi, F.
    Kubiszyn, Ł.
    Benyahia, D.
    Boguski, J.
    Kębłowski, A.
    Martyniuk, P.
    Piotrowski, J.
    Rogalski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1055156.pdf
    Data publikacji:
    2017-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    73.61.Ey
    73.25.+i
    82.45.Cc
    Opis:
    We report on the investigation of the surface leakage current for InAs_{1-x}Sb_x (x=0.09) high operation temperature photodiode grown on GaAs substrate in accelerated short-term stability test. The electrochemical passivation technique was proposed to modify the mesa sidewalls properties and obtain anodic sulphur coating covered by SU-8 negative photoresist. The electrical behavior of sulphur anodic film, SU-8 photoresist, and unpassivated devices was compared for devices in variable area diode array test. The surface resistivity for anodic sulphur film, SU-8 and unpassivated devices are equal to 1080, 226, 10200 kΩ cm, respectively, at 150 K and 1340, 429, 2870 kΩ cm, respectively, at 150 K after an exposure of 20 h to atmosphere at 373 K. The Auger recombination process was evaluated as the main mechanism of diffusion current in HOT devices.
    Źródło:
    Acta Physica Polonica A; 2017, 132, 2; 325-328
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The development of cigarette smoke induced chronic pancreatitis in mice is associated with increased expression of K-Ras and NF-κB
    Autorzy:
    Daniluk, J.
    Daniluk, U.
    Rogalski, P.
    Swidnicka-Siergiejko, A.
    Wasielica-Berger, J.
    Jacek Kucharski, J.R.
    Antonowicz, S.
    Reszec, J.
    Lotowska, J.M.
    Zabielski, P.
    Blachnio-Zabielska, A.
    Dabrowski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/28761840.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Medycyny Wsi
    Źródło:
    Annals of Agricultural and Environmental Medicine; 2022, 29, 2; 246-251
    1232-1966
    Pojawia się w:
    Annals of Agricultural and Environmental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mid-wave InAs/GaSb superlattice barrier infrared detectors with nBnN and pBnN design
    Autorzy:
    Gomółka, E.
    Markowska, O.
    Kopytko, M.
    Kowalewski, A.
    Martyniuk, P.
    Rogalski, A.
    Rutkowski, J.
    Motyka, M.
    Krishna, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/201992.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    InAs/GaSb type-II superlattices
    infrared detectors
    barrier detectors
    nBn detector
    p-i-n detector
    InAs
    GaSb
    detektory podczerwieni
    detektor bariery
    detektor nBn
    detektory p-i-n
    Opis:
    We present an investigation of optical and electrical properties of mid-wavelength infrared (MWIR) detectors based on InAs/GaSb strained layer superlattices (SLs) with nBnN and pBnN design. The temperature-dependent behavior of the bandgap was investigated on the basis of absorption measurements. A 50% cut-off wavelength of around 4.5 μm at 80 K and increase of up to 5.6 μm at 290 K was found. Values of Varshni parameters, zero temperature bandgap E0 and empirical coefficients α and β were extracted. Arrhenius plots of dark currents of nBnN and pBnN detectors were compared with the p-i-n design. Dark current density reduction in nBnN and pBnN detectors is observed in comparison to the p-i-n device. This shows a suppression of Shockley-Read-Hall (SRH) processes by means of introducing barrier architecture.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2018, 66, 3; 317-323
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fast Response Hot (111) HGCDTE MWIR Detectors
    Autorzy:
    Grodecki, K.
    Martyniuk, P.
    Kopytko, M.
    Kowalewski, A.
    Stępień, D.
    Kębłowski, A.
    Piotrowski, A.
    Piotrowski, J.
    Gawron, W.
    Rogalski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/221254.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    HgCdTe
    MWIR
    photodetector
    response time
    Opis:
    In this work we report simulation and experimental results for an MWIR HgCdTe photodetector designed by computer simulation and fabricated in a joint laboratory run by VIGO Sytems S.A. and Military University of Technology. The device is based on a modified N+pP+ heterostructure grown on 2”., epiready, semi-insulating (100) GaAs substrates in a horizontal MOCVD AIX 200 reactor. The devices were examined by measurements of spectral and time responses as a function of a bias voltage and operating temperatures. The time response was measured with an Optical Parametric Oscillator (OPO) as the source of ~25 ps pulses of infrared radiation, tuneable in a 1.55–16 μm spectral range. Two-stage Peltier cooled devices (230 K) with a 4.1 μm cut-off wavelength were characterized by 1.6 × 1012 cm Hz1/2/W peak detectivity and < 1 ns time constant for V > 500 mV.
    Źródło:
    Metrology and Measurement Systems; 2017, 24, 3; 509-514
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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