Autor: Srokowska, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Objective assessment of lower limbs explosive strength performed on the participants of the Polish Nationwide Special Olympics Football Tournament in the scope of both legs jump on the dynamographic platform
Autorzy:: Siedlaczek, M.
Piekorz, Z.
Srokowski, G.
Srokowska, A.
Bułatowicz, I.
Radzimińska, A.
Pilecka Rybka, K.
Siedlaczek, A.
Powiązania:: https://bibliotekanauki.pl/articles/1032497.pdf
Data publikacji:: 2014
Wydawca:: Uniwersytet Kazimierza Wielkiego w Bydgoszczy
Tematy:: explosive strength
special olympics
football
Opis:: Introduction. Explosive strength is a motor ability defined as an ability to develop a maximum strength in the shortest time. It is an essential feature of many sportspeople, including football players. To assess this strength for lower limbs, the following tests are implemented: CMJ and DJ tests, defined determinants of McClymont reactive strength or K indicator according to Bartonietz. It is also possible to objectively assess the jump research with the use of a dynamographic platform. 12 Aim of the study. The aim of the research was to determine explosive strength of lower limbs with the use of GAMMA dynamographic platform. Material and method. The participants of the Polish Nationwide Special Olympics Football Tournament were examined with the use of the GAMMA dynamographic platform. 57 people aged 20-30 were researched (44 boys, 13 girls). On the basis of the results, lower limbs explosive strength was determined. Results. The research depicted a wide range of the lower limbs explosive strength values of the Football Special Olympics participants. This also suggests significant differences of motor abilities of particular participants taking part in the tournament. Conclusions. Results concerning the dynamographic platforms usefulness in assessing sportspeople motor abilities as well as explosive strength of young active participants of the Special Olympics were formed.
Źródło:: Journal of Health Sciences; 2014, 4, 1; 11-24
1429-9623
Pojawia się w:: Journal of Health Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Występowanie gazu ziemnego zamkniętego w piaskowcach czerwonego spągowca Polski
Tight gas accumulations in Rotliegend sandstones of Poland
Autorzy:: Kiersnowski, H.
Buniak, A.
Kuberska, M.
Srokowska-Okońska, A.
Powiązania:: https://bibliotekanauki.pl/articles/2074767.pdf
Data publikacji:: 2010
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: piaskowiec czerwonego spągowca
gaz zamknięty
niekonwencjonalne złoża gazu
Rotliegend sandstones
tight gas
unconventional gas fields
Opis:: The paper presents the first unconventional tight gas field discovered in tight low permeability (K > 0.1 mD) eolian sandstones in the Polish Upper Rotliegend Basin. The tight gas field has been found in area east of Poznań (Siekierki zone). In that area, reservoir eolian sandstones lost almost all permeability and partly porosity due to compaction and illitization processes. The origin of the gas trap was analyzed in many variants, from which one was selected as the most probable. It is assumed that main source for illite crystallization were Zechstein hypersaline brines rich in Ca, Na, K and SO4, which infiltrated the Rotliegend sandstones on tectonically uplifted block. The gas generation and migration were taking place at the same time as processes responsible for decrease in sandstone permeability have been ceasing. As a result, tight gas field from the Siekierki zone can be defined as an unconventional gas field occurring in conventional structural trap. It is expected that tight gas fields could also originate in deeper parts of the Polish Rotliegend Basin but under conditions of BCGS (Basin-Centered Gas System). Gas fields originating under this system are without classic seal and its capacity can be significantly bigger than those of conventional gas fields. The type of organic matter occurring in mature Carboniferous rocks was determining composition of gas formed at gas generation phase. It also affected the chemical content of infiltrating fluids and, in this way, had significant influence on the course of diagenetic processes. In the fault zones, diagenetic cements formed impermeable barriers which separate conventional and unconventional gas fields, as well as barriers separating individual parts of these fields. Such compartmentalization was surely important for origin of the tight gas reservoirs in the Polish Upper Rotliegend Basin.
Źródło:: Przegląd Geologiczny; 2010, 58, 4; 335-346
0033-2151
Pojawia się w:: Przegląd Geologiczny
Dostawca treści:: Biblioteka Nauki

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