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Tytuł:
Changes in presence of alien species in the ruderal vegetation of a representative ecosystem in a major city over 30 years: a case study from Bratislava
Autorzy:
Rendekova, A.
Miskovic, J.
Micieta, K.
Hrabovsky, M.
Jarolímek, I.
Wydawca:
Polskie Towarzystwo Botaniczne
Powiązania:
https://bibliotekanauki.pl/articles/58422.pdf  Link otwiera się w nowym oknie
Opis:
The study is focused on evaluating changes in the presence of alien species in ruderal vegetation. Two datasets comprising phytosociological relevés of ruderal communities during two time periods within the Bratislava City (in southwestern Slovakia) were analyzed. The old dataset consisted of 387 relevés recorded in the years 1975–1982, and the more recent dataset consisted of 308 relevés from the years 2011–2014. The relevés from both time periods were assigned to phytosociological classes via the same procedure – numerical classification (hierarchical clustering) using HIERCLUS software. The average values of the percentage number and percentage cover of the archaeophytes and neophytes as groups in the earlier and more recent relevés of each class were compared by the main effects ANOVA analysis in the STATISTICA 7.0 software. The proportion of each taxon of archaeophytes and neophytes in both datasets was also calculated. The invasive status, origin, and life forms of alien species in both datasets were compared. In total, both datasets comprised 120 archaeophytes and 71 neophytes. The old dataset contained more archeaophytes than the more recent dataset. On the contrary, the more recent dataset contained more neophytes than the old dataset. In the years 2011–2014, more invasive neophytes were recorded than in the past. The results revealed a statistically significant decrease in the average percentage number of archaeophytes in the classes Stellarietea mediae, Artemisietea vulgaris, and Galio-Urticetea, and a decrease in the average percentage cover of archaeophytes in the class Artemisietea vulgaris, compared to the past. On the contrary, a statistically significant increase in the average percentage number and cover of neophytes in the classes Artemisietea vulgaris and Galio-Urticetea was recorded. Some rare species of archaeophytes were only recorded 30 years ago (e.g., Kickxia elatine, Silene gallica). Furthermore, several species of neophytes (including some invasive taxa, e.g., Fallopia japonica, Helianthus tuberosus, Juncus tenuis) occur only currently in the ruderal vegetation of Bratislava.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The SST-1M project for the Cherenkov Telescope Array
Autorzy:
Hamal, P.
Niemiec, J.
Barbano, A. M.
Renier, Y.
Michalowski, J.
Travnicek, P.
Mach, E.
Grudzińska, M.
Pech, M.
Blazek, J.
Świerblewski, J.
Nagai, A.
Cadoux, F. R.
Bulik, T.
Alispach, C. M.
Samarai, I. Al
Jurysek, J.
Palatka, M.
Kotarba, A.
Heller, M.
Ostrowski, Michał
Seweryn, K.
Favre, Y.
Kasperek, J.
Njoh Ekoume, T. R.
Walter, R.
Troyano Pujadas, I.
Błocki, J.
Lyard, É.
Stawarz, Łukasz
Borkowski, J.
Moderski, R.
Balbo, M.
Świerk, P.
Beshley, V.
Della Volpe, D.
Michal, S.
Pasko, P.
Przybilski, H.
Smakulska, D.
Sobczyńska, D.
Wiecek, M.
Koncewicz, K.
Rajda, P.
Ziętara, Krzysztof
Schovanek, P.
Sliusar, V.
De Angelis, N.
Montaruli, T.
Biland, A.
Pilszyk, B.
Coco, V.
Gieras, T.
Rozwadowski, P.
Neise, D.
Mandat, D.
Hrabovsky, M.
Chytka, L.
Zagdański, Aleksander
Opis:
The SST-1M project, run by a Consortium of institutes from Czech Republic, Poland and Switzerland, has been proposed as a solution for implementing the small-size telescope array of the southern site of the Cherenkov Telescope Array. The technology is a pathfinder for efficient production of cost-effective imaging air Cherenkov telescopes. We report on the main system features and recent upgrades, the performances validation and the operation campaign carried out in 2018.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Inne
Tytuł:
The SST-1M imaging atmospheric Cherenkov telescope for gamma-ray astrophysics
Autorzy:
Rajda, P.
Montaruli, T.
Stodulska, M.
Prouza, M.
Gieras, T.
Balbo, M.
Chytka, L.
Gibaud, L.
Nikołajuk, M.
Vacula, M.
Favre, Y.
Pech, M.
Araudo, A.
Bulik, T.
Garczarczyk, M.
Novotný, V.
Štrobl, J.
Walter, R.
Heller, M.
Casanova, S.
Della Volpe, D.
Michal, S.
Stawarz, Łukasz
Chudoba, J.
Niemiec, J.
Neise, D.
Seweryn, K.
Świerk, P.
Trávníček, P.
Nalewajski, K.
Christov, A.
Ostrowski, Michał
Troyano Pujadas, I.
Hamal, P.
Cadoux, F.
Marek, W.
Schovanek, P.
Tavernier, T.
Blažek, J.
Lacave, B.
Mandát, D.
Ziętara, Krzysztof
Juryšek, J.
Müller, A.L.
Beshley, V.
Janeček, P.
Świerblewski, J.
Moderski, R.
Biland, A.
Lyard, E.
Hrabovský, M.
Jelínek, M.
Mach, E.
Vícha, J.
Palatka, M.
Muthyala, S.
Sliusar, V.
Sternberger, R.
Michałowski, J.
Borkowski, J.
Dědič, P.
Nagai, A.
Alispach, C.
Muraczewski, A.
Karas, V.
Jílek, V.
Opis:
The SST-1M (webpage: https://sst-1m.space) is a Small-Sized Telescope (SST) designed to provide a cost-effective and high-performance solution for gamma-ray astrophysics, particularly for energies beyond a few TeV. The goal is to integrate this telescope into an array of similar instruments, leveraging its lightweight design, earthquake resistance, and established Davies-Cotton configuration. Additionally, its optical system is designed to function without a protective dome, allowing it to withstand the harsh atmospheric conditions typical of mountain environments above 2000 m a.s.l. The SST-1M utilizes a fully digitizing camera system based on silicon photomultipliers (SiPMs). This camera is capable of digitizing all signals from the UV-optical light detectors, allowing for the implementation of various triggers and data analysis methods. We detail the process of designing, prototyping, and validating this system, ensuring that it meets the stringent requirements for gamma-ray detection and performance. An SST-1M stereo system is currently operational and collecting data at the Ondřejov observatory in the Czech Republic, situated at 500 m a.s.l. Preliminary results from this system are promising. A forthcoming paper will provide a comprehensive analysis of the telescope's performance in detecting gamma rays and operating under real-world conditions.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Observation of the Crab Nebula with the Single-Mirror Small-Size Telescope stereoscopic system at low altitude
Autorzy:
Ziętara, Krzysztof
Sternberger, R.
Müller, A. L.
Hamal, P.
Muthyala, S. R.
Favre, Y.
Neise, D.
Moderski, R.
Palatka, M.
della Volpe, D.
Świerk, P.
Świerblewski, J.
Cadoux, F.
Beshley, V.
Novotný, V.
Jelínek, M.
Lyard, E.
Stawarz, Łukasz
Vícha, J.
Borkowski, J.
Heller, M.
Muraczewski, A.
Glowacki, E.
Mach, E.
Michałowski, J.
Nalewajski, K.
Marek, W.
Janeček, P.
Pech, M.
Trávníček, P.
Walter, R.
Chudoba, J.
Boula, S.
Blažek, J.
Lacave, B.
Bulik, T.
Hrabovský, M.
Nikołajuk, M.
Prouza, M.
Christov, A.
Casanova, S.
Niemiec, J.
Ostrowski, Michał
Araudo, A.
Dědic, P.
Gieras, T.
Štrobl, J.
Alispach, C.
Chytka, L.
Jílek, V.
Troyano Pujadas, I.
Montaruli, T.
Balbo, M.
Nagai, A.
Gibaud, L.
Mandát, D.
Miroń, M.
Sliusar, V.
Tavernier, T.
Karas, V.
Stodulska, M.
Čechvala, P.
Juryšek, J.
Schovanek, P.
Garczarczyk, M.
Michal, S.
Opis:
The Single-Mirror Small-Size Telescope (SST-1M) stereoscopic system is composed of two Imaging Atmospheric Cherenkov Telescopes (IACTs) designed to deliver optimal performance for gamma-ray astronomy in the multi-TeV energy range. It features a 4-m diameter tessellated mirror dish and an innovative SiPM-based camera. Its optical system features a 4-m diameter spherical mirror dish based on the Davies-Cotton design, maintaining a good image quality over a large field of view (FoV), while minimizing optical aberrations. In 2022, two SST-1M telescopes were installed at the Ondřejov Observatory, Czech Republic at an altitude of 510 meters above sea level, collecting data for commissioning and astronomical observations since then. We present the first SST-1M observations of the Crab Nebula, conducted between September 2023 and March 2024 in both mono and stereoscopic modes. During this observation period, 46 hours for the SST-1M-1 and 52 hours for the SST-1M-2 were collected (of which 33 hours were in stereoscopic mode). In this work, we used the Crab Nebula observation to validate the expected performance of the instrument, as evaluated by Monte Carlo (MC) simulations that were carefully tuned to account for instrumental and atmospheric effects. We determined that the energy threshold at the analysis level for the zenith angles below 30° is 1 TeV for mono mode and 1.3 TeV for stereo mode. The energy and angular resolutions were approximately 20% and 0.18° for mono mode and 10% and 0.10° for stereo mode, respectively. We present an off-axis performance assessment of the instrument and a detailed study of the systematic uncertainties. The full simulation results for the telescope and its camera are compared to the data for the first time, enabling a deeper understanding of the SST-1M array performance.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
The Cherenkov Telescope Array potential for the study of young supernova remnants
Autorzy:
Rovero, A. C.
Huovelin, J.
Siejkowski, H.
Majumdar, P.
Hrupec, D.
Baushev, A.
Garcia, B.
Lucarelli, F.
Katz, U.
Orito, R.
Bulik, T.
Weinstein, A.
Nievas, M.
Hrabovsky, M.
Kubo, H.
Gaug, M.
Ohishi, M.
Kaufmann, S.
Di Giulio, C.
Mirabal, N.
Nosek, D.
Szanecki, M.
Dournaux, J.-L.
Komin, N.
Maccarone, M. C.
Ebr, J.
Nunio, F.
Yoshikoshi, T.
Bonardi, A.
Egberts, K.
Fontaine, G.
Lee, W. H.
Pech, M.
Kluźniak, W.
De Lotto, B.
Pareschi, G.
Lamanna, G.
Lenain, J.-P.
Kocot, J.
Persic, M.
Moulin, E.
Carr, J.
Chudoba, J.
Lohse, T.
Tibolla, O.
Meagher, K.
de los Reyes Lopez, R.
Hörandel, J.
Wilhelm, A.
Lombardi, S.
Nishijima, K.
Ong, R. A.
Romano, P.
Vallania, P.
Khélifi, B.
Fesquet, M.
Telezhinsky, I.
Jamrozy, Marek
de la Calle, I.
Rodriguez Fernandez, G.
Szepieniec, T.
Pohl, M.
Ohm, S.
Di Girolamo, T.
Palatka, M.
Font, L.
De Palma, F.
Mazziotta, M. N.
Giordano, F.
Acharya, B. S.
Di Pierro, F.
Stefanik, S.
Fleischhack, H.
Rainò, S.
Chadwick, P.
Kaaret, P. E.
Berge, D.
Wagner, S. J.
Becker Tjus, J.
Maier, G.
Morselli, A.
Gonzalez, M. M.
Wakely, S. P.
Giuliani, A.
Dwarkadas, V.
Niemiec, J.
Grabarczyk, T.
Caraveo, P.
Barrio, J. A.
Wierzcholska, Alicja
Rudak, B.
Busetto, G.
Contreras, J. L.
Burton, M.
Tovmassian, G.
Gargano, F.
Hassan, T.
Cotter, G.
Prouza, M.
Vigorito, C.
Bohacova, M.
Fuessling, M.
Brown, A.
Babic, A.
van Eldik, C.
Sillanpää, A.
Carosi, R.
Stolarczyk, T.
Aramo, C.
De Franco, A.
Malaguti, G.
Mandat, D.
Humensky, T. B.
López-Coto, R.
Wojcik, P.
Travnicek, P.
Kushida, J.
Janecek, P.
Quirrenbach, A.
Shayduk, M.
Vercellone, S.
Dazzi, F.
Garrido, D.
Otte, N.
López-Oramas, A.
Garcia López, R.
Connaughton, V.
Conforti, V.
Förster, A.
Godinovic, N.
Tejedor, L. A.
Bugaev, V.
Giglietto, N.
Trzeciak, M.
Schovanek, P.
Tibaldo, L.
Teshima, M.
Garczarczyk, M.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Magnetic Anisotropy in Case-Carburized Surfaces after Hard Turning
Autorzy:
Neslušan, M.
Blažek, D.
Hrabovský, D.
Bukovina, M.
Tematy:
75.60.Ej
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:
https://bibliotekanauki.pl/articles/1201826.pdf  Link otwiera się w nowym oknie
Opis:
This paper deals with magnetic anisotropy found in hard turned surfaces. The high magnetic anisotropy of the surface after hard turning operations occurs due to severe plastic deformation and high temperature, exceeding the Curie temperature in the cutting zone, followed by rapid cooling. The transformed microstructures of the surface, and stress anisotropy near the surface cause the magnetic anisotropy and magnetic domain reconfiguration. On the contrary, temperatures during grinding usually do not exceed Curie temperature and so the remarkable magnetic anisotropy after grinding operations in not found. The magnetic properties of the studied surfaces are analyzed by Barkhausen noise emission as well as magneto-optical methods. The results of these two techniques are used to study the magnetic anisotropy.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sensitivity of the Cherenkov Telescope Array to TeV photon emission from the Large Magellanic Cloud
Autorzy:
Ventura, S.
Benbow, W.
Niemiec, J.
Holler, M.
Fontaine, G.
Horan, D.
Grondin, M. -H.
Ribó, M.
Vallage, B.
de Gouveia Dal Pino, E. M.
Wierzcholska, Alicja
Lohse, T.
Orienti, M.
Chiavassa, A.
Rosales de Leon, A.
Bulgarelli, A.
Punch, M.
Reimer, O.
Chytka, L.
Bradascio, F.
Lindfors, E.
Asano, K.
Carosi, A.
Will, M.
Cerruti, M.
Persic, M.
Hassan, T.
Granot, J.
Sergijenko, O.
López-Oramas, A.
Bhattacharyya, S.
Reimer, A.
Mukherjee, R.
Angüner, E. O.
Baquero Larriva, A.
Kosack, K.
Martí, J.
Zhdanov, V. I.
Bigongiari, C.
Schussler, F.
Hnatyk, B.
Komin, N.
Ostrowski, Michał
Lombardi, S.
Bernardos Martín, M. I.
Cotter, G.
Beshley, V.
Leuschner, F.
Arcaro, C.
Dwarkadas, V. V.
Nievas, M.
Dumora, D.
Lamastra, A.
Di Piano, A.
Backes, M.
Filipovic, M.
Bernete Medrano, J.
Pantaleo, F. R.
Nishijima, K.
Rieger, F.
Suda, Y.
Dalchenko, M.
Siejkowski, Hubert
Hofmann, W.
Alfaro, J.
della Volpe, D.
Balbo, M.
Yamazaki, R.
Macias, O.
Bamba, A.
Živec, M.
Becerra González, J.
Paoletti, R.
Hrabovsky, M.
Zacharias, M.
Gaggero, D.
Santos-Lima, R.
Meyer, D. M. -A.
Inoue, S.
Kantzas, D.
Mangano, S.
Depaoli, D.
Prandini, E.
Di Tria, R.
Vitale, V.
Caroff, S.
Ohm, S.
Agudo, I.
Ferenc, D.
Iocco, F.
Leone, F.
López-Coto, R.
De Caprio, V.
Barbosa Martins, V.
Vink, J.
Casanova, S.
Alves Batista, R.
Mohrmann, L.
Rando, R.
Orlandini, M.
Böttcher, M.
Heller, M.
Pecimotika, M.
Teshima, M.
Amato, E.
Borkowski, J.
del Valle, M. V.
Rodriguez Fernandez, G.
Rudak, B.
Crestan, S.
Garczarczyk, M.
Vacula, M.
Ziętara, Krzysztof
Priyadarshi, C.
Miceli, M.
Tavernier, T.
Moulin, E.
Diebold, S.
Escudero, J.
Cristofari, P.
Torres, D. F.
Rizi, V.
Barres de Almeida, U.
Nagataki, S.
Baktash, A.
Balazs, C.
De Martino, D.
Cortina, J.
Rico, J.
Walter, R.
Jamrozy, Marek
Kowal, Grzegorz
Fedorova, E.
Moderski, R.
Vodeb, V.
Hayashi, K.
Bordas, P.
Vigorito, C. F.
Juryšek, J.
Lemoine-Goumard, M.
Falceta-Goncalves, D.
Nosek, D.
Gallozzi, S.
Ballet, J.
Moralejo, A.
Orlando, E.
Vázquez Acosta, M.
Pühlhofer, G.
Ashkar, H.
Bissaldi, E.
Michałowski, J.
Delgado, C.
Emery, G.
Rigoselli, M.
Lenain, J. -P.
Manicò, G.
Doro, M.
Bastieri, D.
Giuliani, A.
Longo, F.
Carquín, E.
Green, J. G.
Lapington, J.
Horvath, P.
Hamal, P.
Majumdar, P.
Fegan, S.
Bocchino, F.
Fioretti, V.
Goldoni, P.
Santangelo, A.
Zavrtanik, M.
Aguasca-Cabot, A.
Pech, M.
Galaz, G.
Ghalumyan, A.
Holder, J.
Becker Tjus, J.
Petruk, O.
Reposeur, T.
Giavitto, G.
Tothill, N.
Di Venere, L.
Rainò, S.
Pohl, M.
Karas, V.
Olmi, B.
Gasbarra, C.
Oya, I.
Kornecki, P.
Spencer, S.
Richtler, T.
Servillat, M.
Galanti, G.
Siqueira, C.
Yoshikoshi, T.
Burmistrov, L.
Dazzi, F.
Hütten, M.
Orito, R.
Rosado, J.
Katagiri, H.
Bhattacharjee, P.
Fukui, Y.
Noda, K.
Chadwick, P.
Giordano, F.
D'Ammando, F.
Fiandrini, E.
Leto, G.
Gasparrini, D.
Kerszberg, D.
Menchiari, S.
Roache, E.
Aramo, C.
de Naurois, M.
Patricelli, B.
Viana, A.
Pumo, M. L.
Sánchez-Conde, M.
Berti, A.
Chen, A.
Molero, M.
Stanič, S.
Nayak, A.
Ohishi, M.
Nozaki, S.
Palatka, M.
Pietropaolo, E.
Martínez, M.
Kubo, H.
Martin, P.
Vorobiov, S.
Brown, A. M.
Schwanke, U.
Munari, K.
Incardona, F.
Stolarczyk, T.
Romeo, G.
White, M.
Queiroz, F. S.
Scherer, A.
Aguirre-Santaella, A.
Vecchi, M.
Molina, E.
Eckner, C.
Romano, P.
Sano, H.
Giarrusso, M.
Goulart Coelho, J.
Bernardini, E.
Feng, Q.
Pierre, E.
Paredes, J. M.
Zdziarski, A. A.
Vuillaume, T.
Sarkar, S.
Barrio, J. A.
Foffano, L.
Gammaldi, V.
Jin, W.
Hadasch, D.
Moya, V.
Morselli, A.
Miceli, D.
Di Girolamo, T.
Iarlori, M.
Knödlseder, J.
de Souza, V.
Razzaque, S.
Steppa, C.
Mariotti, M.
Ong, R. A.
Tibaldo, L.
Vallania, P.
Hnatyk, R.
Adam, R.
Orlando, S.
Inada, T.
Rulten, C.
Stamerra, A.
Zavrtanik, D.
van Eldik, C.
Muraczewski, A.
Costantini, H.
Bottacini, E.
Mazin, D.
Loporchio, S.
Delgado Giler, A. G.
Giglietto, N.
De Angelis, A.
Batista, P.
Wagner, S. J.
Mitchell, A.
Pagliaro, A.
Morcuende, D.
Conforti, V.
Green, D.
Yang, L.
Saturni, F. G.
Chaty, S.
Novosyadlyj, B.
Cascone, E.
Luque-Escamilla, P. L.
Costa, A.
Quirrenbach, A.
Aschersleben, J.
Montaruli, T.
Jung-Richardt, I.
Marquez, P.
Sadeh, I.
Batkovic, I.
Mandat, D.
Bertucci, B.
Hiroshima, N.
Nikołajuk, M.
Glicenstein, J. -F.
Pirola, G.
Gueta, O.
Cassol, F.
Di Pierro, F.
Nakamori, T.
Egberts, K.
Parmiggiani, N.
Ferrand, G.
Aloisio, R.
Hernández Cadena, S.
Marsella, G.
Acharyya, A.
Zaharijas, G.
Biland, A.
Saito, T.
Baxter, J. R.
Okumura, A.
Schovanek, P.
Vercellone, S.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Experimental determination of the working fluid volume for optimal function of the loop heat pipe
Autorzy:
Hrabovský, P.
Nemec, P.
Malcho, M.
Jandačka, J.
Tematy:
loop heat pipe
heat transfer
cooling
working fluid
Pokaż więcej
Wydawca:
Politechnika Świętokrzyska w Kielcach. Wydawnictwo PŚw
Powiązania:
https://bibliotekanauki.pl/articles/402058.pdf  Link otwiera się w nowym oknie
Opis:
This experiment is concentrated on the working fluid of the heat pipe. The working fluid is an important part for the function of the heat pipe regarding the transfer of the heat. The measurements point out the appropriate quantity of the working fluid regarding the correct function of the loop heat pipe in the cooling of electronic components.
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 20

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