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    Wyświetlanie 1-7 z 7
    Tytuł:
    Radiation chemistry of radioactive waste to be stored in the salt mine repository
    Autorzy:
    Zagórski, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/148590.pdf
    Data publikacji:
    2006
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    dehydrogenation
    ionization spurs
    radioactive waste
    radiolysis of polymers
    repository chemistry
    Opis:
    Different aspects of radiation chemistry connected with long storage of radioactive waste are discussed. More details are given on the dehydrogenation of organic, and in particular polymeric waste, contaminated with transuranium nuclides. Determinations of radiation yields of hydrogen from typical waste were made, indicating limits of safe activities tolerable. No danger of chain reactions of hydrogen release was detected.
    Źródło:
    Nukleonika; 2006, 51,suppl.2; 87-92
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    BODZIEC OSTROGI Z LUB NIEWIC. SŁOWIAŃSKA KUL TURA ELITARNA W ZA CHODNIEJ CZĘŚCI PAŃSTWA PIASTÓW
    THE SPUR GOAD FROM LUBNIEWICE, POLAND. SLAVIC ELITE CULTURE IN THE WESTERN PART OF THE PIAST STATE
    Autorzy:
    Michalak, Arkadiusz
    Gardeła, Leszek
    Powiązania:
    https://bibliotekanauki.pl/articles/1037800.pdf
    Data publikacji:
    2020-11-12
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    Western Slavs
    Viking Age
    spurs
    Slavic mythology
    elites
    equestrian equipment
    Opis:
    This paper focuses on a copper-alloy goad discovered in 2017 in Lubniewice in Lubuskie Voivodeship, Poland. An interdisciplinary analysis has shown that the goad was originally part ofa lavishly decorated copper-alloy spur representing a type known from high-status West Slavic graves (e.g. Lutomiersk, Ciepłe) and settlement sites. Because objects of this kind are made of costly material, and because expert skills were required to produce them, it is argued that they were commissioned by a very specific group of people who used them as “material markers” of their distinct cultural and religious identity. It is not unlikely that the owners of such spurs were members of the elite retinue of the Piasts who played important roles on and off the battlefield.
    Źródło:
    Slavia Antiqua: rocznik poświęcony starożytnościom słowiańskim; 2020, 61; 135-161
    0080-9993
    Pojawia się w:
    Slavia Antiqua: rocznik poświęcony starożytnościom słowiańskim
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sieć osadnicza I szlaki komunikacyjne na zachód od poznańskiego przełomu Warty w starszych fazach wczesnego średniowiecza
    A settlement network and transport routes to the west of the Poznań Warta gorge in the older stages of the early middle ages
    Autorzy:
    Pawlak, Ewa
    Powiązania:
    https://bibliotekanauki.pl/articles/1886832.pdf
    Data publikacji:
    2021-11-08
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    early Middle Ages
    waterways
    inland routes
    settlement network
    tribal gords
    spurs
    Opis:
    In the oldest stages of the early Middle Ages, the settlements located between the Warta and the Obra were concentrated predominantly in a few areas: between the Warta, the Sama and the Samica Stęszewska, in the vicinity of Pniewy and Lwówek, and to the west of Sieraków. The resulting structure, over time supplemented with settlement clusters in Opalenica Plain, formed the basis for a network of gords established in the 9th and the early 10th centuries. The arrangement of hamlets and gords allowed to reconstruct long-range transport routes connecting these regions with south Wielkopolska, Lusatia as well as the north-western Slavic domains.
    Źródło:
    Slavia Antiqua: rocznik poświęcony starożytnościom słowiańskim; 2021, 62; 115-146
    0080-9993
    Pojawia się w:
    Slavia Antiqua: rocznik poświęcony starożytnościom słowiańskim
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Über eine Gruppe hochmittelalterlicher Prunksporen im Südwesten der Ostsee
    ON A GROUP OF RICHLY DECORATED SPURS IN THE South -West of the Baltic Sea
    Autorzy:
    Biermann, Felix
    Powiązania:
    https://bibliotekanauki.pl/articles/1038017.pdf
    Data publikacji:
    2020-03-02
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    Riding spurs
    Middle Ages
    deserted village
    Slavic-German contacts
    Northern Germany
    Opis:
    A small group of richly decorated spurs has been known for a long time for their characteristic non-ferrous metal covering as well as massive bronze or brass thorn points. Most of them have been found in in the states of Hamburg and Schleswig-Holstein. They are so similar that they could have been manufactured, if not in the same workshop, at least in the same region. The embossed metal sheath, reminiscent of the Late Slavic technology of sheath fittings, could indicate a the Slavic craft tradition. The latest find from a deserted village of Kastaven near Sähle, Oberhavel district in northern Brandenburg, sheds new light on this group of objects. The Kastaven spur has been found in the central area of the settlement which existed between the early 13th and the 15th centuries, in the vicinity of ruins of a church or a churchyard. The spur was probably lost at the village foundation phase, in the early 13th century. This context is of importance to the disputed chronology of the entire spur group, dated back to the late 12th and the early 13th centuries. The finds in Hamburg, Holstein, Eastern Mecklenburg and Northern Brandenburg indicate contacts between the élites in the southwest of the Baltic, related to migrations of petty nobility within the German Eastern Settlement or a communication network of the Slavic Leaders in the Abodrite/Mecklenburg cultural area.
    Źródło:
    Slavia Antiqua: rocznik poświęcony starożytnościom słowiańskim; 2019, 60; 349-369
    0080-9993
    Pojawia się w:
    Slavia Antiqua: rocznik poświęcony starożytnościom słowiańskim
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geometry of faceted spurs on an active normal fault: case study of the Central Wasatch Fault, Utah, U.S.A
    Geometria lic progów uskokowych aktywnego uskoku normalnego na przykładzie środkowego segmentu uskoku Wasatch w stanie Utah (U.S.A.)
    Autorzy:
    Zuchiewicz, W. A.
    McCalpin, J. P.
    Powiązania:
    https://bibliotekanauki.pl/articles/191186.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    active normal fault
    faceted spurs
    Wasatch Fault
    Utah, U.S.A
    Opis:
    Faceted spurs preserved along the Central Wasatch Fault, north-central Utah, display different geometry and state of development. Geometric parametres of the largest faceted spurs that have been shaped since the Pliocene or early Quaternary appear to reflect lithological, structural and seismotectonic differentiation among the four fault segments studied (Brigham City, Weber, Salt Lake City, and Spanish Fork). The size of a faceted spur is a function of the distance between major canyons incised into mountain front and of the spur's height. Most of the canyons that truncate the western side of the Wasatch Mts. follow zones of weakness. Some of geometric parametres reflect the size of triangular facets (the numer and length of 1st-order interfluves), whereas dimensionless ratios (bifurcation and length ratios) are usually size-independent and are controlled by the rate of both seismotectonic uplift and erosional downcutting. The height of a faceted spur is a function of uplift whereas average slope may be affected by a variety of factors. On homogeneous bedrock the youngest facets are usually the steepest. Along the Wasatch fault such a relationship is, however, seldom observed due to either highly differentiated lithology of underlying rocks or the presence of subsidiary, high-angle normal faults that run parallel to the main fault zone, and dip towards the base of mountain front. The latter case resembles that of the Aegean-type fault scarps. The geometry of faceted spurs developed on differentiated bedrock, although controlled by seismotectonic uplift, is also strongly modified by rock resistance to erosion and by bedrock structure.
    Artykuł charakteryzuje wpływ czynników tektonicznych oraz litologiczno-odpornościowych na morfologię lic progów uskokowych (triangular facets) w obrębie czterech segmentów uskoku Wasatch w północno- wschodniej części prowincji Basin and Range w stanie Utah. Dla charakterystyki topologicznej lic progów uskokowych zastosowaliśmy zmodyfikowaną klasyfikację Hortona-Strahlera. Lica progów uskokowych wykazują zróżnicowaną geometrię i stopień zachowania. Parametry geometryczne największych zespołów lic, kształtowanych od pliocenu lub wczesnego plejstocenu, odzwierciedlają różnice litologiczne i strukturalne oraz odmienne tempo ruchów sejsmotektonicznych pomiędzy czterema analizowanymi segmentami uskoku. Niektóre parametry (liczba i długość odcinków 1 rzędu, suma długości działów wodnych) odzwierciedlają rozmiary lica progu, podczas gdy wskaźniki bezwymiarowe (wskaźniki bifurkacji i długości) nie zależą od wielkości danej formy i są uwarunkowane tempem ruchów tektonicznych oraz prędkością rozcięcia erozyjnego. Wysokość poszczególnych lic jest funkcją wypiętrzenia tektonicznego, natomiast ich nachylenie może być efektem zarówno tektoniki, jak też zróżnicowania litologicznego i strukturalnego. Przeprowadzona analiza wykazuje, że geometria lic progów uskokowych w równym stopniu odzwierciedla tempo ruchów sejsmotektonicznych, jak też odporność i strukturę skał podłoża.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2000, 70, No. 3-4; 231-249
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ostrogi krzesłowate w okresie wpływów rzymskich – stan i potrzeby badań
    Chair-shaped Spurs in the Roman Iron Age – The State and Prospects of Research
    Autorzy:
    Smółka-Antkowiak, Emilia
    Powiązania:
    https://bibliotekanauki.pl/articles/682027.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
    Tematy:
    okres wpływów rzymskich
    młodszy okres przedrzymski
    ostrogi
    ostrogi krzesłowate
    Celtowie
    Trewerowie
    Germanie nadłabscy
    kultura wielbarska
    kultura przeworska
    ostrogi kabłąkowe
    Roman Iron Age
    early Pre-Roman Iron Age
    spurs
    chair-shaped spurs
    Celts
    Treveri
    Elbe Germanic
    Wielbark culture
    Przeworsk culture
    bow-shaped spurs
    Opis:
    In the Roman Iron Age can be observed the development of spurs production by the barbarian communities in Central Europe. Spurs were disseminated by Celts, then were gladly used and modified by local people. Their initial form were certainly bow-shaped spurs. But there were also chair-shaped spurs, which were derived from bow-shaped form. Through the work of numerous researchers we have more and vaster, but still incomplete knowledge about these monuments. With a high degree of certainty we can talk about development of forms of these monuments. Their development from bow-shaped forms perfectly shows spurs with three circular plates, so called Dreikreisplattensporen. First items of this type come from the fifth / fourth decade of the first century BC, which makes them the oldest form of rivet spurs. Their genetic zone is connected with area occupied by the Celtic tribe of Treveri. They are therefore not, as previously thought, germanic, but celtic product. However, thanks to the Elbe Germanic these spurs disseminated in the area covered by the settlement of tribes belonging to the Germanic circle of civilization. However, must be noted that in Treveri area at the same time we have to deal with three wholly distinct communities – Terveri (Celts), Suebi (Germans) and Romans. So it is not obvious who had the idea to initiate production of rivet spurs. Detailed analysis of these early forms of spurs, could bring measurable effects for our understanding of real origin of this monuments. It could also help to point trails which these monuments were further redistributed into the Germanic zone, and thus also the areas of the Polish lands. From the land occupied by the Przeworsk culture, there are two specimens of so called Dreikreisplattensporen, from Korytnica, grave 4 and Zakrzewo, grave 14. They can be classified as a Geoblingen-Thür type by Bockius. They are found mainly in Treveri area, but similar also occur in the area of the Grossromstedt culture. Here are considered as the imitation rather than Celtic import. The issue of provenience of these spurs is still unresolved. In the Roman Iron Age significantly increased the number and diversity of chairshaped spurs produced in the Germania Magna. Their development during this period is no doubt related to the germanic communities, which inhabited the area extending along an axis running from the Jutland Peninsula to the Elbe River basin, where these monuments are the most common. An interesting phenomenon is the presence of imitation parts of chair-shaped spurs observed in the bow-shaped spurs. Such similarity is visible between the chair-shaped spurs with highly separate prick and bow-shaped spurs of Wielbark culture. In conclusion, currently, despite the existence of several separate classifications of chair-shaped spurs, using them is significantly hampered. These difficulties are due to e.g. no longer current findings. This is caused by increase of data base or deficiencies such as the presentation of incomplete catalog. Difficulties in classifying stem not only from restrictions on the use of existing typologies, but also from a large variety of chairshaped spurs. Correct classification of these monuments, the ability to precisely determine their chronology and the creation of their full catalog is the basis for comprehensive research, covering the entire area of distribution of chair-shaped spurs. They would give the opportunity to lead the direction of the distribution of spurs; trails, which reach among others on the Polish lands. This research would show the directions of interregional contacts. Next step would be thinking of which social processes led to the dissemination of this type of findings on the Elbe and southern Scandinavia areas and further spreading of such spurs in the East. 
    -
    Źródło:
    Acta Universitatis Lodziensis. Folia Archaeologica; 2016, 31
    0208-6034
    2449-8300
    Pojawia się w:
    Acta Universitatis Lodziensis. Folia Archaeologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Radiation chemistry in exploration of Mars
    Autorzy:
    Zagórski, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/147866.pdf
    Data publikacji:
    2005
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    carbon dioxide chemistry
    cosmic rays
    ionization spurs
    Martian regolith
    origins of life
    planetary system exploration
    radiation chemistry
    Opis:
    Problems of exploration of Mars are seldom connected with radiation research. Improvements in such approach, more and more visible, are reported in this paper, written by the present author working on prebiotic chemistry and origins of life on Earth. Objects on Mars subjected to radiation are very different from those on Earth. Density of the Martian atmosphere is by two orders smaller than over Earth and does not protect the surface of Mars from ionizing radiations, contrary to the case of Earth, shielded by the equivalent of ca. 3 meters of concrete. High energy protons from the Sun are diverted magnetically around Earth, and Mars is deprived of that protection. The radiolysis of martian "air" (95.3% of carbon dioxide) starts with the formation of CO2 +, whereas the primary product over Earth is N2 + ionradical. The lack of water vapor over Mars prevents the formation of many secondary products. The important feature of Martian regolith is the possibility of the presence of hydrated minerals, which could have been formed milliards years ago, when (probably) water was present on Mars. The interface of the atmosphere and the regolith can be the site of many chemical reactions, induced also by intensive UV, which includes part of the vacuum UV. Minerals like sodalite, discovered on Mars can contribute as reagents in many reactions. Conclusions are dedicated to questions of the live organisms connected with exploration of Mars; from microorganisms, comparatively resistant to ionizing radiation, to human beings, considered not to be fit to manned flight, survival on Mars and return to Earth. Pharmaceuticals proposed as radiobiological protection cannot improve the situation. Exploration over the distance of millions of kilometers performed successfully without presence of man, withstands more easily the presence of ionizing radiation.
    Źródło:
    Nukleonika; 2005, 50,suppl.2; 59-63
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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