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Wyszukujesz frazę "Tomas, A." wg kryterium: Autor


Wyświetlanie 1-7 z 7
Tytuł:
The tectonic setting and origin of the Smilno tectonic window (Eastern Slovakia)
Założenia tektoniczne i geneza okna tektonicznego Smilna (wschodnia Słowacja)
Autorzy:
Ryłko, W.
Tomaś, A.
Powiązania:
https://bibliotekanauki.pl/articles/2062510.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Smilno tectonic window
Magura
Grybów and Dukla units
Western Carpathians
okno tektoniczne Smilna
jednostka magurska
Karpaty Zachodnie
jednostka grybowska
jednostka dukielska
Opis:
The Smilno tectonic window is located in eastern Slovakia between Smilno in the west and Nižný Mirošov in the east. Geologically, the Smilno tectonic window occurs in the Magura Unit, within the Racza Subunit. In this area, deposits of the Grybów and Dukla units crop out from under the Magura Unit rocks and occur at the surface. The Dukla Unit section is represented by the Submenilite Formation occurring in the northern part of the window. The upper Grybów Unit is represented by the Menilite Formation and the Krosno Beds. The Smilno window developed as a result of a multi-stage formation of flysch masses in this region. In the earliest stage, flysch masses were displaced over the Makovice Ridge from the south into the graben. The graben was filled mostly with deposits of the Silesian and Dukla units, overlain by the Grybów and Magura units. In the next stage, there was a restructuring of the Makovice Ridge, which extended into the overlying deposits of the Silesian and Dukla units. During the later stage, tectonic deformation spread out into the Grybów and Magura units. Not only discontinuous tectonic deformation, but also the beginnings of folding processes, developed as a result of SW-oriented stress, is observed within them. In the next stage, the SW-oriented stress plays a significant role. It resulted in a shift of the Grybów and Magura units and the top part of the Dukla Unit in relation to the Dukla and Silesian units. The last stage included primarily a shortening and thrusting of the Grybów and Magura units and the top portion of the Dukla Unit. Due to this process, the Magura Unit broke up, and the Grybów and Dukla units, today present in the Smilno window, pierced up to the surface along discontinuity planes. In each case described, the occurrence of a tectonic window within flysch deposits was associated with the presence of a resisting element in the consolidated basement of the Carpathians to the south of the window zone; in the case of the Smilno window, it was the Makovice Ridge.
Tektoniczne okno Smilna położone jest na obszarze wschodniej Słowacji, w obrębie jednostki magurskiej. W obrębie okna Smilna mamy do czynienia z profilami dwóch jednostek, jednostki dukielskiej i jednostki grybowskiej. Okno Smilna uformowało się w rowie podłoża pomiędzy grzbietem makowickim na południu a regionalnym skłonem podłoża na północy. Powstało ono w wyniku wieloetapowego formowania się mas fliszowych. W każdym opisanym przypadku pojawienie się okna tektonicznego w obrębie mas fliszowych związane było z wystąpieniem elementu oporowego w skonsolidowanym podłożu Karpat na południe od strefy okiennej. Element ten był przeszkodą dla ruchu mas fliszowych ku północy, wyhamowywał go i w wyniku tego powstawała składowa pionowa sił powodująca wypiętrzenie mas fliszowych z głębi na powierzchnię. W przypadku okna Smilna był to grzbiet makowicki.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2012, 449; 185--193
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concurrent validity and reliability of proprietary and open-source jump mat systems for the assessment of vertical jumps in sport sciences
Autorzy:
Pueo, B.
Jimeney-Olmedo, J. M.
Lipińska, P.
Buśko, K.
Penichet-Tomas, A.
Powiązania:
https://bibliotekanauki.pl/articles/307394.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
sportowiec
skoki
sport
test
athlete
jump
open-hardware
sports
switch
Opis:
Vertical jump tests are used to assess lower-limb power of athletes in sport sciences. Flight time measurement with jump-mat systems is the most common procedure for this purpose. The aim of this study was to analyze the concurrent validity and reliability of two proprietary systems (Globus and Axon) and an open-source system (Chronojump). Methods: A conditioning electric circuit governed by a controlled wave generator is designed to substitute athletes jumping on a physical mat. In order to look for possible differences associated to timekeeping by each microcontroller device, all three systems are fed by the circuit simultaneously. Results: Concurrent validity was high for the three systems. Standarized typical error of estimate (TEE) was trivial, according to MBI interpretation, as well as perfect Pearson correlation coefficient. Reliability was assessed using coefficient of variation of flight time measure, resulting in 0.17–0.63% (0.05–0.12 cm) for Globus, 0.01% (0.09 cm) for Chronojump and 5.65–9.38% (2.15–3.53 cm) for Axon. These results show that all jump-mat system produced nearly identical measures of flight time so they can be considered valid and reliable for practical purposes. In comparison, Chronojump showed the best performance whereas Axon showed enough variability and disagreement to pose a problem in testing elite athletes. Conclusions: These experiments show that open-source jump mats are as valid and reliable as their proprietary counterparts at a lower cost. Therefore, practitioners can be confident in using Globus or Chronojump systems to test athletes’ jump height because of their negligible errors and Axon system to monitor general population.
Źródło:
Acta of Bioengineering and Biomechanics; 2018, 20, 3; 51-57
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The wettability, mechanical and antimicrobial properties of polylactide/montmorillonite nanocomposite films
Autorzy:
Rapacz-Kmita, A.
Pierchała, M. K.
Tomas-Trybuś, A.
Szaraniec, B.
Karwot, J.
Powiązania:
https://bibliotekanauki.pl/articles/307050.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
montmorylonity
nanokompozyty
właściwości antybakteryjne
właściwości mechaniczne
montmorillonite
nanocomposite films
antibacterial properties
mechanical properties
Opis:
The aim of this study was to evaluate the effect of the not activated (unmodified) montmorillonite (MMT) filler on the antibacterial properties of polymer nanocomposites with a biodegradable polylactide (PLA) matrix. The subject of research was selected to verify the reports on the lack of antibacterial properties of unmodified montmorillonite in nanocomposites and to investigate the potential condition of their manufacturing which are decisive for the resulting properties. Evaluation of antibacterial and mechanical properties of both the starting materials and the obtained nanocomposites filled with layered silicates, as well as the wettability of the materials measured by a sitting drop method, was made on samples in the form of a film. The results show that the surface wettability of the polymer nanocomposites did not exhibit significant change compared to the film of neat PLA. However, a significant improvement in the mechanical and antimicrobial properties of the nanocomposite films obtained in a specific solvent casting process of the nanocomposite preceded by exfoliation of the film in an ultrasonic homogenizer was demonstrated. The antibacterial activity against Gram-positive bacteria Staphylococcus aureus and Enterococcus faecalis was also observed, and moreover, the montmorillonite-containing films revealed a zone of inhibition of bacterial growth when tested against the lactose-positive bacteria of the Enterobacteriaceae family, which are present in the waste water. The advantageous properties of the obtained PLA/MMT nanocomposites suggest, that the unmodified montmorillonite may be potentially used as filler for polymer films in the packaging industry.
Źródło:
Acta of Bioengineering and Biomechanics; 2017, 19, 4; 25-33
1509-409X
2450-6303
Pojawia się w:
Acta of Bioengineering and Biomechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Risk Elements Input into the Food Chain in Old Loaded Localities
Metale ciężkie w roślinach uprawnych uprawianych w pobliżu dawnych źródeł zanieczyszczeń
Autorzy:
Vollmannova, A.
Tomas, J.
Tóth, T.
Powiązania:
https://bibliotekanauki.pl/articles/389301.pdf
Data publikacji:
2010
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
nieaktywne źródła zanieczyszczeń
zanieczyszczenie gleby
czynniki ryzyka
żywność
old loaded areas
soil contamination
risky elements
human food chain
Opis:
The aim of this work is to evaluate the potential influence of three various sources on soil hygiene and plant production in their vicinity. In the soil of the first observed area in the vicinity of the former Nickel Smelter in Sered, the contents of Cd, Ni, Cu and Co were higher than the background values. Agricultural production grown in this area does not pose any risk to human organism with the exception of Cd in barley grain grown in one locality. The soil of the second observed area in the yicinity of Iron Ore Mines in Rudnany in loaded area of Middle Spis, can be evaluated as highly contaminated with As, Cu and Hg. Potatoes are at the highest risk in this area, but determined contents of risky metals in cereals are also higher than the legislatiye limits of the Food Codex (FC) of the Sloyak Republic. In the third observed locality, Zahorska Lowland, in the yicinity of 5 municipal landfills, the determined total Cu, Cd and Ni soil contents were higher than the background yalues and the metal contents in grain of cereals were higher than the legislatiye limits. The results suggest that the old loaded localities present potential danger of risky elements input into the human food chain.
Celem pracy było zbadanie wpływu trzech różnych źródeł zanieczyszczeń na jakość gleby oraz produkcję roślinną. Zaobserwowana została zwiększona zawartość Cd, Ni Cu i Co w glebie w okolicy byłej huty niklu. Uprawy rolne na tym terenie nie stanowią jednak zagrożenia dla zdrowia ludzi z powodu stosunkowo małej zawartości metali ciężkich. Wyjątek stanowiło ziarno jęczmienia zawierające wysoki poziom kadmu. Na drugim badanym stanowisku - Kopalnia Rudy Żelaza Rudnany, Środkowy Spisz -stwierdzono dużą zawartość As, Cu i Hg w glebie. Największą ilość metali na tym terenie kumulowały ziemniaki. Ponadto w ziarnach zbóż przekroczone zostały obowiązujące w Republice Słowackiej normy zawartości metali ciężkich. Ostatni z badanych terenów to Nizina Zahorska. Na obszarze tym zbadano zawartość metali w glebie pól położonych w pobliżu pięciu składowisk śmieci. Uzyskane wyniki wskazały zwiększoną zawartość Cu, Cd i Ni w glebie oraz przekroczone limity dla zawartości tych metali w ziarnie zbóż. Przeprowadzone badania wykazały, że dawna emisja metali ciężkich do środowiska nadal stanowi źródło zanieczyszczenia żywności.
Źródło:
Ecological Chemistry and Engineering. A; 2010, 17, 1; 143-153
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
X-ray diffraction microstructural analysis of swelling by ethylene glycol in two reference clay minerals
Autorzy:
García Tomás, F.
Kojdecki, M.
Pardo, P.
Ibańez, R.
Álvarez Larena, A.
Bastida, J.
Powiązania:
https://bibliotekanauki.pl/articles/1152823.pdf
Data publikacji:
2016-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.37.Vj
61.72.Dd
Opis:
Kaolinite and montmorillonite are two clay minerals with different structures: dioctahedral 1:1 without layer charge and dioctahedral 2:1 with low layer charge. X-ray-diffraction microstructural analysis of two fractions of two reference clays (with kaolinite or montmorillonite) from the Clay Minerals Society Source Clay Repository were performed by the Voigt function method to provide microstructural data not available in the baseline studies of this Repository. A rough agreement was found between crystallite sizes determined from X-ray diffraction patterns and from images by field-emission scanning electron microscopy. In addition, the influence of swelling by ethylene-glycol on crystallite size was studied by the mentioned method. Two factors were found to affect the crystallite size variation in ethylene-glycol-treated clay minerals: (i) the increase of the unit cell in [001] direction due to the interlayer absorption of ethylene glycol molecules in the case of swelling minerals and (ii) the physisorption at the surfaces of the crystallites. Both effects operate in the case of montmorillonite, whereas just the latter one is expected in kaolinite.
Źródło:
Acta Physica Polonica A; 2016, 130, 4; 876-879
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Private Eye: A Gameplay for Problem Solving Skills
Autorzy:
Tomas U. Ganiron Jr, Ganiron Jr
Alfad, Johara G.
Florendo, Blaise A.
Amoncio, Reylan J.
Powiązania:
https://bibliotekanauki.pl/articles/1177999.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Animation
functionality
gameplay
private eye
software engineering
usability
video game
Opis:
The use of game-based learning relates to the use of games to enhance the problem-solving skills. This paper will present the findings of observational research of Private Eye as a gameplay using rudimentary programming concepts. The Private Game Play encompasses executables, source code, architecture descriptions, and so on. As a result, the notion of user extends to operators as well as to programmers, which are users of components such as software libraries. The standard provides a framework for organizations to define a quality model for a software product. In doing so, however, it leaves up to each organization the task of specifying precisely its own model. This may be done, for example, by specifying target values for quality metrics which evaluates the degree of presence of quality attributes. The study will assess the software quality of the Private Eye Gameplay based on ISO/IEC, 9126-1 It will also contribute to the empirical evidence in games-based construction by providing the results of observational research across different levels of its software quality and will provide pedagogical guidelines for assessing programming ability using a games-based construction approach.
Źródło:
World Scientific News; 2018, 96; 149-178
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new plesiosaur from the Lower Jurassic of Portugal and the early radiation of Plesiosauroidea
Autorzy:
Puertolas-Pascual, E.
Marx, M.
Mateus, O.
Saleiro, O.
Fernandes, A.E.
Marinheiro, J.O.
Tomas, C.
Mateus, S.
Powiązania:
https://bibliotekanauki.pl/articles/2082325.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Plesiosauria
radiation
Sinemurian
Jurassic
Iberian Peninsula
Europe
Opis:
A new plesiosaur partial skeleton, comprising most of the trunk and including axial, limb, and girdle bones, was collected in the lower Sinemurian (Coimbra Formation) of Praia da Concha, near São Pedro de Moel in central west Portugal. The specimen represents a new genus and species, Plesiopharos moelensis gen. et sp. nov. Phylogenetic analysis places this taxon at the base of Plesiosauroidea. Its position is based on this exclusive combination of characters: presence of a straight preaxial margin of the radius; transverse processes of mid-dorsal vertebrae horizontally oriented; ilium with sub-circular cross section of the shaft and subequal anteroposterior expansion of the dorsal blade; straight proximal end of the humerus; and ventral surface of the humerus with an anteroposteriorly long shallow groove between the epipodial facets. In addition, the new taxon has the following autapomorphies: iliac blade with less expanded, rounded and convex anterior flank; highly developed ischial facet of the ilium; apex of the neural spine of the first pectoral vertebra inclined posterodorsally with a small rounded tip. This taxon represents the most complete and the oldest plesiosaur species in the Iberian Peninsula. It is also the most complete, best preserved, and oldest marine vertebrate in the region and testifies to the incursion of marine reptiles in the newly formed proto-Atlantic sea, prior to the Atlantic Ocean floor spreading in the Early Cretaceous.
Źródło:
Acta Palaeontologica Polonica; 2021, 66, 2; 369-388
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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