Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Widera, Paweł" wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
Architektura i geneza iłów w górnym poziomie węgli brunatnych formacji poznańskiej (środkowy miocen) : Odkrywka Tomisławice k. Konina w środkowej Polsce
Architecture and origin of clays within the upper part of lignites of the Poznań Formation (Middle Miocene) : The Tomisławice lignite open-cast mine near Konin, central Poland
Autorzy:
Chomiak, Lilianna
Urbański, Paweł
Widera, Marek
Powiązania:
https://bibliotekanauki.pl/articles/2076113.pdf
Data publikacji:
2020
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
osady klastyczne
palaeolake
śródpolski podkład węgla
pokład węgla brunatnego
zawartość popiołu
miocen polski
clastic sediments
first mid-Polish lignite seam
ash content
Miocene of Poland
Opis:
In the Tomisławice opencast mine, owned by the Konin Lignite Mine, a relatively widespread (>1.5 km2) and thick (up to 80 cm) layer of clay occurs within the first mid-Polish lignite seam. These fine-grained sediments are interpreted as deposited in a long-lasting lake that existed in the mid-Miocene backswamp area. Due to the exploitation of this seam forelectricity production, interbeddings of clastic sediments significantly reduce the quality of lignite. Currently, lignite is mined together with the clays in the Tomisławice opencast mine. Such procedure in extreme cases, where the maximum. thickness of the clay layer is up to 80cm, increases/may increase the ash content of the entire lignite seam almost twice. Therefore, selective lignite mining would be recommended, i.e. without clays, which unfortunately is not practiced due to technological and financial reasons.
Źródło:
Przegląd Geologiczny; 2020, 68, 6; 526--534
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Is the Złoczew lignite deposit geologically suitable for the first underground gasification installation in Poland?
Autorzy:
Urbański, Paweł
Widera, Marek
Powiązania:
https://bibliotekanauki.pl/articles/94451.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
tectonic graben
lignite seams
UCG criteria
clean energy
Miocene
central Poland
rów tektoniczny
pokłady węgla brunatnego
UCG
czysta energia
Miocen
środkowa Polska
Opis:
The present study focuses on alternative methods of exploiting lignite in comparison to conventional opencast mining and combustion in power plants for the generation of electricity. In Poland, opencast lignite pits cover large areas, creating social and environmental conflicts. In order to stabilise the production level of electricity and reduce the negative effects of opencast mining, alternative ways of exploiting lignite are suggested, one of these being underground gasification in situ. The Złoczew lignite deposit, which will most likely be exploited in the near future, provides an opportunity to discuss the unconventional method of underground coal gasification (UCG). On the basis of technological and geological criteria that have been established to determine the suitability of Polish lignite for underground gasification, resources to be used this way have been estimated. Through gasification, over 15 million tonnes of lignite can be utilised, which is about 2.5 per cent of resources of the Złoczew deposit intended for opencast mining. With this in mind, we suggest to take action by starting a pilot installation, to be followed by a commercial one for underground gasification after completion of superficial mining. Naturally, any future application of this method will be preceded by assessment of geological conditions at the Złoczew opencast pit.
Źródło:
Geologos; 2020, 26, 2; 113-125
1426-8981
2080-6574
Pojawia się w:
Geologos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New insights into the genesis of the “Poznań clays” – upper neogene of Poland
Autorzy:
Maciaszek, Piotr
Chomiak, Lilianna
Urbański, Paweł
Widera, Marek
Powiązania:
https://bibliotekanauki.pl/articles/395989.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
overbank deposits
palaeosols
palaeochannels
anastomosing river
Neogene of central Poland
Opis:
The present study focuses on the upper Neogene deposits, called the “Poznań Clays”, that cover more than 75,000 km2 of Poland. They are situated between the first midPolish lignite seam and the glaciogenic deposits of the Pleistocene age. Lithostratigraphically, the “Poznań Clays” belong to the uppermost portion of the lignite-bearing Grey Clays Member and the whole Wielkopolska Member (Poznań Formation). The examined fine-grained sediments include mud-rich floodplain deposits with palaeosol remnants and large sandy-muddy or muddy palaeochannel bodies. Therefore, taking into account facies analysis, cross-sectional geometry, and the planform of the palaeochannels, it can be stated that the “Poznań Clays” formed in the environment of a late Neogene anastomosing river.
Źródło:
Civil and Environmental Engineering Reports; 2020, 30, 1; 18-32
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assembling the SARS-CoV genome - new method based on graph theoretical approach.
Autorzy:
Błażewicz, Jacek
Figlerowicz, Marek
Formanowicz, Piotr
Kasprzak, Marta
Nowierski, Bartosz
Styszyński, Rafał
Szajkowski, Łukasz
Widera, Paweł
Wiktorczyk, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/1041512.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
algorithm
assembling
SARS-CoV
graphs
Opis:
Nowadays, scientists may learn a lot about the organisms studied just by analyzing their genetic material. This requires the development of methods of reading genomes with high accuracy. It has become clear that the knowledge of the changes occuring within a viral genome is indispensable for effective fighting of the pathogen. A good example is SARS-CoV, which was a cause of death of many people and frightened the entire world with its fast and hard to prevent propagation. Rapid development of sequencing methods, like shotgun sequencing or sequencing by hybridization (SBH), gives scientists a good tool for reading genomes. However, since sequencing methods can read fragments of up to 1000 bp only, methods for sequence assembling are required in order to read whole genomes. In this paper a new assembling method, based on graph theoretical approach, is presented. The method was tested on SARS-CoV and the results were compared to the outcome of other widely known methods.
Źródło:
Acta Biochimica Polonica; 2004, 51, 4; 983-993
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies