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Wyświetlanie 1-15 z 82
Tytuł:
DSPIC - Based impedance measuring instrument
Autorzy:
Santos, J.
Ramos, P. M.
Powiązania:
https://bibliotekanauki.pl/articles/220477.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
impedance measurement
dsPIC
ADC
sine-fitting
Opis:
An implemented impedance measuring instrument is described in this paper. The device uses a dsPIC (Digital Signal Peripheral Interface Controller) as a processing unit, and a DDS (Direct Digital Synthesizer) to stimulate the measurement circuit composed by the reference impedance and the unknown impedance. The voltages across the impedances are amplified by programmable gain instrumentation amplifiers and then digitized by analog to digital converters. The impedance is measured by applying a seven-parameter sine-fitting algorithm to estimate the sine signal parameters. The dsPIC communicates through RS-232 or USB with a computer, where the measurement results can be analyzed. The device also has an LCD to display the measurement results.
Źródło:
Metrology and Measurement Systems; 2011, 18, 2; 185-198
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Capital punishment: a theoretical and cooperative analysis
Autorzy:
Ramos, Tainá Corrêa Barbosa
Powiązania:
https://bibliotekanauki.pl/articles/684936.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
capital punishment
theories of punishment
utilitarianism
retributivism
Opis:
Among all the different types of penalties that exist in the various juridical systems around the world, capital punishment, also known as the death penalty, is one of the most controversial ones. The discussion about its legitimacy and legality crosses social, philosophical, cultural, religious and historical fields. The present article aims to first analyze how capital punishment is treated in different parts of the world, whether it is present or not, and to later on focus on the attempts to justify such a harsh punishment, by both the retributive and utilitarian theories of punishment.
Źródło:
Adam Mickiewicz University Law Review; 2016, 6; 145-156
2450-0976
Pojawia się w:
Adam Mickiewicz University Law Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Railway geolocation and communication-management platforms
Autorzy:
Catalan Ramos, F.
Prieto Valderrey, I.
Hernandez Bajo, A.
Powiązania:
https://bibliotekanauki.pl/articles/393669.pdf
Data publikacji:
2009
Wydawca:
Polskie Stowarzyszenie Telematyki Transportu
Tematy:
kolej
zarządzanie
RENFE
railways
management
Opis:
The article gives a technical and functional description of the onboard tracking and communications-management platforms, as well as their associated control centres, supplied by GMV for the whole fleet of railway locomotives and motor cars of the Spanish railway operator RENFE.
Źródło:
Archives of Transport System Telematics; 2009, 2, 4; 31-36
1899-8208
Pojawia się w:
Archives of Transport System Telematics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On roughness measurement by angular speckle correlation
Autorzy:
Salazar, F.
Belenguer, T.
García, J.
Ramos, G.
Powiązania:
https://bibliotekanauki.pl/articles/220643.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
roughness
speckle
non-destructive testing
Opis:
In this work, the influence of both characteristics of the lens and misalignment of the incident beams on roughness measurement is presented. To investigate how the focal length and diameter affect the degree of correlation between the speckle patterns, a set of experiments with different lenses is performed. On the other hand, the roughness when the beams separated by an amount are non-coincident at the same point on the sample is measured. To conclude the study, the uncertainty of the method is calculated.
Źródło:
Metrology and Measurement Systems; 2012, 19, 2; 373-380
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
When Reading Becomes a Game: Parallel Narratives in Portuguese Picturebooks
Autorzy:
Ramos, Ana Margarida
Powiązania:
https://bibliotekanauki.pl/articles/2031275.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Wrocławski. Oficyna Wydawnicza ATUT – Wrocławskie Wydawnictwo Oświatowe
Tematy:
postmodern picturebooks
wordless picturebooks
interactive reading
playfulness
metafiction
peritexts
Opis:
The aim of this text is to carry out an analysis of a specific picturebook type that includes two parallel narratives and can be read in two different directions. The first book under analysis, As duas estradas (2009) [Two Roads] (text by Isabel Minhós Martins), is organised using two verbal and visual narratives which tell the story of two partially simultaneous journeys in Portugal, from Lisbon to Alcobia doTejo, in two different cars by members of the same family. The second book, Olhe, por favor, não viu uma luzinha a piscar?/Corre, coelhinho, corre! (2013)[Follow the Firefly / Run, Rabbit, Run!], is a wordless picturebook that can be read in two directions, from left to right and from right to left, depicting two different visual narratives that take place in the same scenario, with different characters and specific plots. Highlighting the hybrid, multimodal and chamaeleon-like nature of the picturebook, our objective is to provide an opportunity to reflect upon this format of contemporary literature, which is in constant development and which allows increasingly more elaborate experimentation in order to stress the ludic or playful nature of picturebooks.
Źródło:
Filoteknos; 2020, 10; 345-357
2657-4810
Pojawia się w:
Filoteknos
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
EPR examination of free radicals thermally formed in vaselinum flavum
Autorzy:
Ramos, P.
Pilawa, B.
Powiązania:
https://bibliotekanauki.pl/articles/148032.pdf
Data publikacji:
2015
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
vaselinum flavum
thermal sterilization
free radicals
EPR spectroscopy
Opis:
The popular pharmaceutical base used in pharmacy – vaselinum flavum – was studied by an X-band (9.3 GHz) EPR spectrometer in the range of microwave power of 2.2–70 mW. The samples were sterilized in hot air oven at temperatures: 160°C (120 min), 170°C (60 min), and 180°C (30 min). The aim of this work was to determine properties and free radical concentrations in vaselinum flavum thermally sterilized at different conditions. The changes in free radical system in vaselinum flavum during storage were analyzed. Free radicals were found in all the heated samples. The lowest free radical concentration was obtained for vaselinum flavum heated at 180°C for 30 min; so these parameters are proposed for the thermal sterilization of this pharmaceutical base. Interactions with oxygen decreased free radical concentration in vaselinum flavum during storage. Strong quenching of free radicals in vaselinum flavum was observed after 2 days for the samples sterilized at temperatures 160 and 180°C. Such an effect for vaselinum flavum heated at temperature 170°C was observed later, 13 days after sterilization. Fast spin-lattice relaxation processes exist in thermally sterilized vaselinum flavum. The EPR lines of heated vaselinum flavum were homogeneously broadened. EPR spectroscopy and its use for examining the thermal sterilization process in pharmacy was confirmed.
Źródło:
Nukleonika; 2015, 60, No. 3, part 1; 443-447
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
From occupation to independence: contemporary East Timorese history and identity in Portuguese picturebooks
Autorzy:
Ramos, Ana Margarida
Powiązania:
https://bibliotekanauki.pl/articles/1388175.pdf
Data publikacji:
2016-05-29
Wydawca:
Uniwersytet Gdański. Wydawnictwo Uniwersytetu Gdańskiego
Tematy:
picturebooks
ideology
political
contemporary history
East Timor
Opis:
In Portugal, the suffering and struggle of the East Timorese people for independence started a social movement of solidarity with strong repercussions in the arts, namely music and literature. Children’s Literature depicted the theme of this period of oppression in East Timor, as well as the recognition of its independence and its right to freedom, in a picturebook selected for the White Ravens List in 2003 called East Timor – Island of the Rising Sun (2001), by João Pedro Mésseder and André Letria. This unusual picturebook, characterised by a very simple and sparse, almost poetic, text combined with large-format pictures, depicts this chapter of the contemporary history of East Timor in very specific way, resembling fairy tales or legends. The text and images are combined in order to promote symbolic readings, suggesting a magical/mystical environment that impresses readers. More than a decade later, recent struggles and stories from East Timor are still present in Portuguese picturebooks such as Lya/Lia (2014), by Margarida Botelho. The social change, path to democracy and educational development, as well as daily life and children’s pastimes are now the centre of a narrative that establishes the similarities and differences between modern-day Portugal and East Timor. Our aim is to analyse both the political and ideological perspectives present in these picturebooks aimed at very young readers, offering a broad vision of different realities and contexts, even when they deal with war, death and suffering, as was the case of the East Timorese fight for independence.
Źródło:
Problemy Wczesnej Edukacji; 2016, 34, 3; 58-68
1734-1582
2451-2230
Pojawia się w:
Problemy Wczesnej Edukacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The biological degradation of pure bone cement and bone cement with nanometals
Autorzy:
Świeczko-Żurek, Beata
Ramos, António
Żurek, Marcin
Pałubicka, Anna
Gajowiec, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/284131.pdf
Data publikacji:
2019
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Źródło:
Engineering of Biomaterials; 2019, 22, no.153; 12
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Private Enforcement and Opt-out System Risks, Rewards and Legal Safeguards
Autorzy:
Ramos, Maria Elisabete
Powiązania:
https://bibliotekanauki.pl/articles/530274.pdf
Data publikacji:
2018-12-30
Wydawca:
Uniwersytet Warszawski. Wydawnictwo Naukowe Wydziału Zarządzania
Tematy:
competition law
private enforcement
collective redress
opt-out system
Opis:
The EU Antitrust Damages Actions Directive does not include provisions for collective redress. Each EU member state is free to provide national regulation on this matter. The Portuguese legal system provided regulation on actio popularis since 1995. The ‘rational apathy’ of individual consumers may lead to non-reparation of damage and be of significant benefit for the company that is in breach of the law. The opt-out models solve the crucial economic problem caused by a large number of consumers or clients who have suffered a small loss because of competition law infringements. Under those circumstances, it is rational to be apathetic, because it can be foreseen that the cost of filing for compensatory damages will exceed the recovery obtained from the defendant. Such rational apathy of the parties injured by competition law infringements favours the wrongfully acting companies by not extracting their illegal gains from them. By not requiring the active consent of each of the claimants, the opt-out model is able to override rational apathy of consumers.
La Directive 2014/104/UE du Parlement Européen et du Conseil du 26 Novembre 2014 relative à certaines règles régissant les actions en dommages et intérêts en droit national pour les infractions aux dispositions du droit de la concurrence des États membres et de l’Union européenne n’offre pas des normes sur l’action collective. Chaque État-membre est libre d’adopter ses normes sur ce sujet. L’ordre juridique portugais prévoit des normes sur l’actio popularis, depuis 1995. L’apathie rationnelle de chaque consommateur peut déclencher la non réparation des dommages causés par l’infraction des normes de concurrence. Cet effet signifie un bénéfice pour les entreprises qui violent le droit de la concurrence.Le system opt-out donne la solution pour le problème causé pour des nombreux consommateurs qui souffrent des modestes dommages causés par des violations du droit de la concurrence. En ces situations, il est rationnel ne pas réagir, parce que les couts sont supérieurs aux bénéfices. Cette apathie rationnelle favorise les entreprises qui violent le droit de la concurrence. Le system opt-out est capable de surmonter les effets de l’apathie rationnel .
Źródło:
Yearbook of Antitrust and Regulatory Studies; 2018, 11(18); 85-114
1689-9024
2545-0115
Pojawia się w:
Yearbook of Antitrust and Regulatory Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variance components estimation in generalized orthogonal models
Autorzy:
Fernandes, Célia
Ramos, Paulo
Ferreira, Sandra
Mexia, João
Powiązania:
https://bibliotekanauki.pl/articles/729930.pdf
Data publikacji:
2007
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
generalized orthogonal models
variance components
generalized cross nesting designs
Opis:
The model $y = ∑_{j=1}^w X_j β̲_j + e̲$ is generalized orthogonal if the orthogonal projection matrices on the range spaces of matrices $X_j$, j = 1, ..., w, commute. Unbiased estimators are obtained for the variance components of such models with cross-nesting.
Źródło:
Discussiones Mathematicae Probability and Statistics; 2007, 27, 1-2; 99-115
1509-9423
Pojawia się w:
Discussiones Mathematicae Probability and Statistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Turtle tracks from the Late Jurassic of Asturias, Spain
Autorzy:
Avanzini, M
Garcia-Ramos, J.C.
Lires, J.
Menegon, M.
Pinuela, L.
Fernandez, L.A.
Powiązania:
https://bibliotekanauki.pl/articles/20797.pdf
Data publikacji:
2005
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Opis:
Although tracks of dinosaurs are well known from Upper Jurassic sediments, tracks of non−dinosaurian vertebrates are fairly rare. The Upper Jurassic Lastres Formations of Asturias in northern Spain contain many vertebrate tracksites that include footprints and trackways of non−dinosaurian tetrapods. Several of these tracks are natural casts of pentadactyl to tridactyl footprints with digits connected by arched structures. The digits are short with deep scratch marks oriented anteriorly. The Asturian tracks show a high degree of morphological similarity to other specimens previously described as possible turtle tracks. Observations from extant turtle trackways show some surprising similarities with the fossil material. The tracks are here interpreted as having been made by turtles partially buoyed by water or by turtles walking in a slightly wet subaerial environment.
Źródło:
Acta Palaeontologica Polonica; 2005, 50, 4; 743-755
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Algebraic structureof step nesting designs
Autorzy:
Fernandes, Célia
Ramos, Paulo
Mexia, João
Powiązania:
https://bibliotekanauki.pl/articles/729913.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
commutative Jordan algebras
cartesian product of commutative Jordan algebras
step nesting
variance components
UMVUE
Opis:
Step nesting designs may be very useful since they require fewer observations than the usual balanced nesting models. The number of treatments in balanced nesting design is the product of the number of levels in each factor. This number may be too large. As an alternative, in step nesting designs the number of treatments is the sum of the factor levels. Thus these models lead to a great economy and it is easy to carry out inference. To study the algebraic structure of step nesting designs we introduce the cartesian product of commutative Jordan algebras.
Źródło:
Discussiones Mathematicae Probability and Statistics; 2010, 30, 2; 221-235
1509-9423
Pojawia się w:
Discussiones Mathematicae Probability and Statistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sample partitioning estimation for ergodic diffusions: application to Ornstein-Uhlenbeck diffusion
Autorzy:
Ramos, Luís
Powiązania:
https://bibliotekanauki.pl/articles/729918.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
ergodic diffusions
martingale estimating functions
transition and invariant densities
maximum likelihood estimators
Opis:
When a diffusion is ergodic its transition density converges to its invariant density, see Durrett (1998). This convergence enabled us to introduce a sample partitioning technique that gives in each sub-sample, maximum likelihood estimators. The averages of these being a natural choice as estimators. To compare our estimators with the optimal we obtained from martingale estimating functions, see Sørensen (1998), we used the Ornstein-Uhlenbeck process for which exact simulations can be carried out.
Źródło:
Discussiones Mathematicae Probability and Statistics; 2010, 30, 1; 117-122
1509-9423
Pojawia się w:
Discussiones Mathematicae Probability and Statistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
EPR studies of free radicals in thermally sterilized famotidine
Autorzy:
Ramos, P.
Pilawa, B.
Stroka, E.
Powiązania:
https://bibliotekanauki.pl/articles/148414.pdf
Data publikacji:
2013
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
free radicals
thermal sterilization
famotidine
electron paramagnetic resonance (EPR) spectroscopy
Opis:
Free radicals formation in thermally sterilized famotidine was studied by the use of an X-band (9.3 GHz) electron paramagnetic resonance (EPR) spectroscopy. The influence of temperature and time of sterilization on free radicals generated in famotidine was determined. The best sterilization conditions for the tested drug were found. Sterilization was done according to the pharmaceutical norms at temperatures 160°C (120 min), 170°C (60 min), and 180°C (30 min). It was pointed out that the optimal temperature of thermal sterilization for famotidine was 170°C and time of heating 60 min in this conditions the lowest free radicals concentration was found. The highest free radicals concentration was measured in famotidine heated at 160°C during 120 min, the long time of sterilization is responsible for this effect. Free radicals concentration changes during storage of famotidine after thermal sterilization. Its value increased with storage time for the drug sterilized at both temperatures of 170°C and 180°C. Free radicals concentration decreases from 7 days after sterilization. Complex system of free radicals with the shape of EPR lines, dependent on microwave power exist in thermally sterilized famotidine. Slow spin-lattice relaxation processes, strong dipolar interactions characterize thermally sterilized famotidine. Microwave saturation indicates that EPR lines of famotidine are homogeneously broadened. The usefulness of EPR spectroscopy to examine of the sterilized drugs was evaluated.
Źródło:
Nukleonika; 2013, 58, 3; 413-418
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of microwave power on EPR spectra of thermally sterilized eucerinum anhydricum
Autorzy:
Ramos, P.
Pepliński, P.
Pilawa, B.
Powiązania:
https://bibliotekanauki.pl/articles/148715.pdf
Data publikacji:
2015
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
EPR
microwave saturation
free radicals
eucerinum anhydricum
thermal sterilization
Opis:
Free radicals formed during thermal sterilization of eucerinum anhydricum – the pharmaceutical base were examined by an X-band (9.3 GHz) spectrometer. Eucerinum anhydricum was sterilized at different physical conditions according to the Polish Pharmacopeia norms. The samples were heated at temperatures: 160°C (120 min), 170°C (60 min), and 180°C (30 min). The aim of this study is to compare free radical concentration and effect of microwave power on EPR spectra of eucerinum anhydricum base thermally sterilized at different temperatures and periods of time. The effect of time storage on the free radicals in the heated samples was tested. Free radical concentrations in the sample stored 15 min strongly decreased with the increasing of sterilization temperature, probably as the result of recombination. Storage caused strong decrease of free radical concentrations in the samples, probably as the result of interactions with oxygen. It was observed to be independent of sterilization conditions from 2 days of storage and longer. Because of the lowest free radical concentration, for eucerinum anhydricum thermal sterilization at 180°C for 30 min is recommended. The sterilized samples should be stored at inert atmosphere without oxygen molecules. Fast spin-lattice relaxation processes existed in sterilized eucerinum anhydricum. The character of changes of amplitudes and linewidths of EPR lines with increasing of microwave power was the same for different storage times. The parameters of thermal sterilization and storage time influenced free radical concentration in eucerinum anhydricum, but magnetic spin-lattice interactions were unchanged. The usefulness of EPR spectroscopy in optimization of thermal sterilization process of eucerinum anhydricum was confirmed.
Źródło:
Nukleonika; 2015, 60, No. 3, part 1; 439-442
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 82

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