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Wyszukujesz frazę "Pawelec, H." wg kryterium: Autor

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Paleoklimatyczna wymowa peryglacjalnych pokryw stokowych na podstawie badań w południowej części Płaskowyżu Ojcowskiego
    Palaeoclimatic significance of periglacial slope covers - a study from southern part of the Ojców Plateau, S Poland
    Autorzy:
    Pawelec, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074379.pdf
    Data publikacji:
    2005
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    pokrywa stokowa
    pokrywa peryglacjalna
    sukcesja klimatu
    Płaskowyż Ojcowski
    slope covers
    loess
    periglacial loess
    Pleistocene
    Ojców Plateau
    Opis:
    Slope covers investigation reveal possibilities of extensive palaeoclimatic/stratigraphic reconstructions. This paper approaches the problem by presenting the results of sedimentological analyses upon periglacial slope deposits in the southern part of the Ojców Upland. Periglacial slope covers (loess, weathered debris, sediments deposited in result of slope proceses), originated during and after the youngest loess accumulation (in conditions of permafrost thawing), have been the object of research. Both climatic and morphologic conditions of slope covers genesis are analysed in detail. Climate reconstruction is based on the analyses of slope deposits successions examined underneath the rock walls, on the steep slopes and gentle slopes, respectively. Presented research proved that slope cover analysis may be a basis for palaeoclimatic interpretations, however it must have been preceded by studies of morphological conditions of slope material redeposition. The same climate changes may have resulted in different succession of slope deposits, depending on local slope relief.
    Źródło:
    Przegląd Geologiczny; 2005, 53, 11; 1051-1057
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Depositional environment of the glacigenic deposits from the Holy Cross Mountains (Poland) – interpretation based on macro- and microstructure analyses
    Autorzy:
    Ludwikowska-Kędzia, M.
    Pawelec, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060464.pdf
    Data publikacji:
    2014
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    glacigenic deposits
    ice-marginal environment
    macrostructure
    microstructures
    Pleistocene
    Holy Cross Mountains
    Polska
    Opis:
    In this paper an attempt is made to identify the depositional environment of glacigenic deposits from the central part of the Holy Cross Mountains (Kielce-Łagów Valley). In this area, the primary glacial relief is very poorly visible, mainly due to its modification by subsequent denudation processes. The study is based on detailed sedimentological (macro- and microstructural) analysis of the deposits. The bottom part of the deposits consists of gravelly and sandy facies. They are overlain by diamicton facies, with a small proportion of sandy facies. Clayey/silty facies occur in minor quantities. The investigations indicate that these deposits represent an ice-marginal environment. Local stagnation of the ice sheet lobe was controlled by the geological structure of bedrock (karstified and faulted limestones) and the features of a fossil valley. The ice-marginal depositional environment is indicated by the predominance of sediment-gravity flow deposits, a low proportion of sorted deposits, as well as the interfingering/alternating of mass flow deposits and waterlain deposits. Deformation occurring in the deposits is of gravitational origin. They also show traces of periglacial processes. The deposits constituted an ice-marginal moraine (dry end moraine with limited topographic expression). Micromorphological analyses provided data for genetic identification of the deposits, and allowed the inference about rheology of deposition and deformation processes. However, in some cases, they did not allow unequivocal genetic classification of the deposits. The results of presented investigations confirm the opinion that detailed and complete explanation of deposit origin requires both micromorphological analyses and macroscopic field sedimentological and structural studies.
    Źródło:
    Geological Quarterly; 2014, 58, 4; 807--826
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sedimentological interpretation and stratigraphical position of glacigenic deposits in the Napęków area (Holy Cross Mountains, Poland)
    Autorzy:
    Ludwikowska-Kędzia, M.
    Pawelec, H.
    Adamiec, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/94633.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    lithofacies
    microstructures
    lithostratigraphy
    chronostratigraphy
    Pleistocene
    Central Poland
    litofacje
    mikrostruktury
    litostratygrafia
    chronostratygrafia
    plejstocen
    Polska Centralna
    Opis:
    The identification of depositional conditions and stratigraphical position of glacigenic deposits in the Napęków area is important for the genetic and stratigraphical interpretation of Quaternary deposits in the central part of the Holy Cross Mountains, as well as for a revision of the course and extent of Middle Polish (Saalian) glaciations. These deposits comprise a series of diamictons which occur between sandy-gravelly deposits. Based on results of macro- and microscopic sedimentological investigations, analysis of heavy mineral composition, roundness and frosting of quartz grains, as well as OSL dating, this complex must have formed during the Odranian Glaciation (Drenthe, Saalian, MIS 6). Sandy-gravelly deposits are of fluvioglacial and melt-out origin. Diamictons represent subglacial traction till. Their facies diversity is a result of variations in time and space, complex processes of deposition and deformation, responsible for their formation at the base of the active ice sheet. This glacigenic depositional complex was transformed by erosion-denudation and aeolian processes in a periglacial environment during the Vistulian (Weichselian, MIS 5d-2).
    Źródło:
    Geologos; 2015, 21, 4; 261-284
    1426-8981
    2080-6574
    Pojawia się w:
    Geologos
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Applicability of the dielectric barrier discharge for helium ash measurements in the divertor region
    Autorzy:
    Książek, I.
    Brosławski, A.
    Janus, H.
    Pawelec, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/148807.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    dielectric barrier discharge (DBD)
    low pressure discharge
    fusion plasma
    Opis:
    Controlled fusion based on the magnetic confinement of the plasma is one of the main aims of the Eurofusion programme. In the fusion device, the hydrogen isotopes, in nuclear reactions, will produce helium nuclei. The products, as the ash, will be removed from the plasma in the region of the so-called divertor. Controlling the helium to hydrogen ratio in this ‘exhaust gas’ will provide information about the efficiency of the fusion process as well as of the efficiency of the helium removal system. One of the methods to perform this task is to study the properties of the discharge conducted in such exhaust gas. In this paper, the applicability of the dielectric barrier discharge (DBD) is studied. This preliminary experiment shows a great potential in applicability of this kind of discharge. The optical as well as pulse-height spectra were studied, both revealing very promising properties. In the optical spectrum, one can observe well separated hydrogen and helium spectral lines, with intensities of the same order of magnitude. Moreover, in the registered spectral region, the molecular spectra are negligible. The pulse-height spectra reveal very distinct shape in helium and hydrogen. Checking of this spectrum could provide parallel (redundant) information about the partial pressure of helium in the magnetic confinement fusion (MCF) device exhaust gas.
    Źródło:
    Nukleonika; 2016, 61, 2; 99-102
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Temperature Measurements in Non-Equilibrium "Ferroelectric" Plasma
    Autorzy:
    Pawelec, E.
    Simek, M.
    Nassar, H.
    Czernichowski, A.
    Musioł, K.
    Dittrichova, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1945378.pdf
    Data publikacji:
    1996-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    33.10.Jz
    52.70.Kz
    52.25.Kn
    Opis:
    Using spectroscopic measurements vibrational and rotational temperatures were determined in the "ferroelectric" plasma source for different gas mixtures. It was shown that in this time-periodical, atmospheric pressure non-equilibrium discharge, both plasma temperatures differ strongly, and that the vibrational temperature is much higher (≈ 3 kK) than the rotational one (< 1 kK).
    Źródło:
    Acta Physica Polonica A; 1996, 89, 4; 503-507
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Spectral and Electrical Diagnostics of Gliding Arc
    Autorzy:
    Czernichowski, A.
    Nassar, H.
    Ranaivosoloarimanana, A.
    Fridman, A. A.
    Simek, M.
    Musiol, K.
    Pawelec, E.
    Dittrichova, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1945405.pdf
    Data publikacji:
    1996-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    33.10.Jz
    52.70.Kz
    52.25.Kn
    Opis:
    Using spectroscopic and electric measurements, vibrational and rotational molecular gas temperatures as well as free electron temperature and concentration were determined in different regions of a time-periodical type, atmospheric pressure non-equilibrium low current gliding arc. It was shown that this discharge includes an initial quasi-equilibrium zone, with the quasi-equilibrium temperature of 4 to 6 kK, and the non-equilibrium zone with the electron temperature about 10 kK, the vibrational temperature about 3 kK, rotational and translational temperatures from 1 to 1.5 kK. The transition between two mentioned zones coincides with the phenomenon of the arc "length explosion" already observed in moderate-current gliding arc.
    Źródło:
    Acta Physica Polonica A; 1996, 89, 5-6; 595-603
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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