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Wyszukujesz frazę "Müller." wg kryterium: Autor


Tytuł:
Towards Attosecond Pulses with High Harmonics
Autorzy:
Agostini, P.
Paul, P. M.
Breger, P.
Toma, E. S.
Muller, H. G.
Mullot, G.
Augé, F.
Balcou, Ph.
Powiązania:
https://bibliotekanauki.pl/articles/2030463.pdf
Data publikacji:
2002-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
42.65.Re
42.65.Ky
32.80.Rm
33.60.Cv
Opis:
The high harmonics produced by focusing an intense femtosecond laser in a gas are theoretically shown to be locked in phase. The physics of this locking is discussed and a new method based on quantum interference in two-photon, two-color ionization allowing to retrieve the relative phase of harmonic pairs is described. The main result is that the 5 harmonics of orders 11-19 produced in argon generate a train of subfemtosecond pulses with a period of 1.35 fs and a duration of 250 attoseconds.
Źródło:
Acta Physica Polonica A; 2002, 101, 3; 313-324
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cavity-Polariton Effects in II-VI Microcavities
Autorzy:
André, R.
Boeuf, F.
Heger, D.
Dang, Le Si
Romestain, R.
Bleuse, J.
Müller, M.
Powiązania:
https://bibliotekanauki.pl/articles/2011103.pdf
Data publikacji:
1999-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.36.+c
42.55.Sa
78.66.-w
Opis:
Semiconductor microcavities are monolithic multilayer heterostructures grown by molecular beam epitaxy. They allow the confinement along the growth axis of both photons between the Bragg reflectors and excitons in quantum wells. If the exciton-photon coupling matrix element is large enough compared to the line width, the system is said to be in the strong coupling regime. In that case a quantum well exciton couples to another discrete state: the photon mode of a planar microcavity with the same in-plane wave vector, to give rise to quasi-stationary states named cavity polaritons. In this regime, the Fermi golden rule does not hold any more and the optical properties, linear or nonlinear, are strongly related to polariton features. A review of the optical properties of CdTe-based microcavities operating in the strong coupling regime is given in this paper. The strength of the exciton-photon coupling, dynamic optical properties, and relaxation processes along polariton dispersion curves will be discussed, as well as stimulated emission of cavity polariton luminescence.
Źródło:
Acta Physica Polonica A; 1999, 96, 5; 511-524
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electroluminescence Investigation of the Lateral Field Distribution in AlGaN/GaN HEMTs for Power Applications
Autorzy:
Baeumler, M.
Polyakov, V.
Gütle, F.
Dammann, M.
Benkhelifa, F.
Waltereit, P.
Reiner, R.
Müller, S.
Wespel, M.
Quay, R.
Mikulla, M.
Wagner, J.
Ambacher, O.
Powiązania:
https://bibliotekanauki.pl/articles/1197910.pdf
Data publikacji:
2014-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.60.Fi
85.30.De
85.30.Tv
85.40.Bh
85.40.Qx
73.40.-c
73.90.+f
73.61.Ey
73.50.Mx
Opis:
The lifetime and stability of AlGaN/GaN heterostructure field effect transistors at high power levels can be enhanced by introducing field plates to reduce electric field peaks in the gate-drain region. Simulations of the electric field distribution along the channel using the 2D ATLAS software from Silvaco indicate that above a characteristic drain source voltage three spatially separated electric field peaks appear, one located at the drain-side edge of the gate foot, one at the end of the drain-sided gate field plate, and one at the end of the source shield field plate. The close correlation between lateral electric field and the electroluminescence due to hot electron related intra-band transitions can be very helpful when optimizing the electric field distribution in high power devices. Electroluminescence microscopy images of devices with gate and source shield field plate reveal the peaks located at the locations of enhanced electric field. By studying the voltage dependence of the electroluminescence peaks the influence of the field plates on the electric field distribution in source drain direction can be visualized.
Źródło:
Acta Physica Polonica A; 2014, 125, 4; 982-985
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Priming through H2O2-mediated signalling in Arabidopsis thaliana
Autorzy:
Balazadeh, S.
Shahnejat-Bushehri, S.
Muller-Rober, B.
Powiązania:
https://bibliotekanauki.pl/articles/80697.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
molecular mechanism
hydrogen peroxide
stress condition
transcription factor
Arabidopsis thaliana
signalling
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetic anisotropy under arbitrary excitation in finite element models
Autorzy:
Bavendiek, Gregor
Leuning, Nora
Müller, Fabian
Schauerte, Benedikt
Thul, Andreas
Hameyer, Kay
Powiązania:
https://bibliotekanauki.pl/articles/140563.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
magnetic anisotropy
material modeling
finite element method
Opis:
Magnetic properties of silicon iron electrical steel are determined by using standardized measurement setups and distinct excitation parameters. Characteristic values for magnetic loss and magnetization are used to select the most appropriate material for its application. This approach is not sufficient, because of the complex material behavior inside electrical machines, which can result in possible discrepancies between estimated and actual machine behavior. The materials’ anisotropy can be one of the problems why simulation and measurement are not in good accordance.With the help of a rotational single sheet tester, the magnetic material can be tested under application relevant field distribution. Thereby, additional effects of hysteresis and anisotropy can be characterized for detailed modelling and simulation.
Źródło:
Archives of Electrical Engineering; 2019, 68, 2; 455-466
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetization dependent demagnetization characteristic of rare-earth permanent magnets
Autorzy:
Bavendiek, Gregor
Müller, Fabian
Sabirov, Jamshid
Hameyer, Kay
Powiązania:
https://bibliotekanauki.pl/articles/140527.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
demagnetization
magnetic hysteresis
magnetization processes
permanent magnets
Opis:
Accurate demagnetization modelling is mandatory for a reliable design of rare- earth permanent magnet applications, such as e.g. synchronous machines. The magnetization of rare-earth permanent magnets requires high magnetizing fields. For technical reasons, it is not always possible to completely and homogeneously achieve the required field strength during a pulse magnetization, due to stray fields or eddy currents. Not sufficiently magnetized magnets lose remanence as well as coercivity and the demagnetization characteristic becomes strongly nonlinear. It is state of the art to treat demagnetization curves as linear. This paper presents an approach to model the nonlinear demagnetization in dependence on the magnetization field strength. Measurements of magnetization dependent demagnetization characteristics of rare-earth permanent magnets are compared to an analytical model description. The physical meaning of the model parameters and the influence on them by incomplete magnetization are discussed for different rare-earth permanent magnet materials. Basically, the analytic function is able to map the occurring magnetization dependent demagnetization behavior. However, if the magnetization is incomplete, the model parameters have a strong nonlinear behavior and can only be partially attributed to physical effects. As a benefit the model can represent nonlinear demagnetization using a few parameters only. The original analytical model is from literature but has been adapted for the incomplete magnetization. The discussed effect is not sufficiently accurate modelled in literature. The sparse data in literature has been supplemented with additional pulsed-field magnetometer measurements.
Źródło:
Archives of Electrical Engineering; 2019, 68, 1; 33-45
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Delimitation of Bipolar Metropolitan Area Within the Kujawsko-Pomorskie Region
Autorzy:
Biczkowski, Mirosław
Müller-Frączek, Iwona
Muszyńska, Joanna
Pietrzak, Michał Bernard
Wilk, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/489004.pdf
Data publikacji:
2014
Wydawca:
Instytut Badań Gospodarczych
Tematy:
delimitation
metropolitan area
synthetic measure of development
Opis:
The objective of the article was to re-define the bipolar metropolitan area within the area of the Kujawsko-Pomorskie region (NUTS 2). Concentration of metropolitan features, as well as socio-economic situations of its communes (NUTS 5) in 2011, and also the dynamics of communes’ development in the period 2009-2011 were considered in the procedure of delimitation. Bydgoszcz and Toruń, as the economically strongest cities in the region, were established as the dual core of the bipolar metropolitan area. It was assumed that the determined metropolitan area would cover the best developed and the fastest developing communes which met the following criteria of a metropolitan area: neighbourhood, continuity, compactness, maximum distance and population. The development levels of the communes were determined with the use of syn-thetic measure. Its values were calculated considering the economic (e.g. the amount of income) and also social (e.g. unemployment) aspects of regional devel-opment, as well as features typical of metropolitan areas, such as: well-developed sectors of R&D, knowledge-based economy and serving superior services. In the research, linear arrangement methods classifying as taxonomic tools of multivari-ate data analysis was applied. The metropolitan area resulting from the research (BipOM) slightly differs from the Bydgoszcz-Toruń Metropolitan Area (B-TOM) which was formally ap-pointed in 2005 and composed all of the communes located within the area of the Bydgoski and Toruński districts (NUTS 4). Chełmża and Koronowo, as the less developed communes of the districts, were excluded from the new metropolitan area, while the communes of Ciechocinek, Nakło and Unisław, belonging to the neighbouring districts of the region, were included in the BipOM due to their significant level of regional development and its dynamics. Furthermore the Inowrocław district (bordered on the BipOM) was identified as the prospective candidate for the BipOM, due to the fact that its communes demonstrate a high potential for regional development.
Źródło:
Oeconomia Copernicana; 2014, 5, 2; 101-122
2083-1277
Pojawia się w:
Oeconomia Copernicana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lingula dregeri (Brachiopoda) from the Middle Miocene of Hungary
Autorzy:
Bitner, M. A.
Dulai, A.
Kocsis, L.
Müller, P. M.
Powiązania:
https://bibliotekanauki.pl/articles/191757.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Brachiopoda
Lingula
Middle Miocene
Pannonian Basin
Hungary
Opis:
Lingulide brachiopods, assigned to Lingula dregeri Andreae, 1893, have been identified from the Middle Miocene (Upper Badenian) of the Hungarian part of the Pannonian Basin. Although widely distributed in the Miocene of the Central Paratethys (Austria, Poland, Ukraine, Romania), the genus Lingula was not described previously from Hungary. Outside of the Central Paratethys, L. dregeri also has been recognized in the Atlantic and Mediterranean provinces and most probably in the Eastern Paratethys.
Źródło:
Annales Societatis Geologorum Poloniae; 2012, 82, 1; 39--43
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Early Oligocene brachiopods from the rocky-shore deposits at Mammendorf, central Germany
Autorzy:
Bitner, Maria Aleksandra
Müller, Arnold
Powiązania:
https://bibliotekanauki.pl/articles/2133937.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Brachiopoda
Early Oligocene
Rupelian
predation
North Sea Basin
Opis:
Thirteen species, belonging to eleven genera, i.e., Discinisca Dall, Novocrania Lee and Brunton, Lacazella Munier-Chalmas, Pliothyrina van Roy, Terebratulina d’Orbigny, Megathiris d’Orbigny, Argyrotheca Dall, Bronnothyris Popiel-Barczyk and Smirnova, Joania Álvarez, Brunton and Long, Platidia Costa and Megerlia King, have been identified in the lower Oligocene rocky-shore deposits at Mammendorf, central Germany. The occurrence of the species Discinisca fallens (Wood), Argyrotheca bitnerae Dulai and Megerlia truncata (Linnaeus) extends their stratigraphic range back to the early Oligocene. The affinity to the early Oligocene brachiopod fauna of the Mainz Basin is noted.
Źródło:
Annales Societatis Geologorum Poloniae; 2022, 92, 1; 87--107
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Democracias incompletas: El caso de Brasil
Autorzy:
Braga, Maria do Socorro Sousa
Muller, Gustavo
Rodrigues, Marcus Corrêa
Powiązania:
https://bibliotekanauki.pl/articles/2096243.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
Brazilian democracy
Bolsonaro government
party system
democratic backlash
electoral realignment
critical election
democracia brasileña
gobierno de Bolsonaro
sistema de partidos
retroceso democrático
reajuste electoral
elección crítica
Opis:
The article aims to analyze whether, after 30 years of current Brazilian democracy, political institutions will be resilient enough to deal with the consequences of an authoritarian government elected in the middle of a deep representation crisis. In other words, would this be a turn to an illiberal democracy? From an analysis of the situation, we traced a chronology of circumstances – transition from the authoritarian regime, popular dissatisfaction, critical elections of 2018 as a time of exhaustion for the New Republic, dynamics of the party dispute – that converged to the rise of ultra-right forces, elected through a democratic regime. Data referring to public perception concerning institutions, electoral results, and performance of traditional parties in recent electoral cycles (general election of 2018 and municipal election of 2020) are analyzed. We conclude that the growth of center-right parties in the 2020 municipal elections indicate that – despite the analytical correctness of the literature on the possibility of internal corrosion of democracies by nationalist neopopulism – the thesis regarding incidental rulers has strong evidence visible in Brazil.
El artículo pretende analizar si, tras 30 años de la actual democracia brasileña, las instituciones políticas serán lo suficientemente resistentes como para afrontar las consecuencias de un gobierno autoritario elegido en medio de una profunda crisis de representación. En otras palabras, ¿se trataría de un giro hacia una democracia antiliberal? A partir de un análisis de coyuntura, trazamos una cronología de circunstancias –transición del régimen autoritario, insatisfacción popular, elecciones críticas de 2018 como momento de agotamiento de la Nueva República, dinámica de la disputa partidaria– que confluyeron al ascenso de fuerzas de ultraderecha, elegidas en el marco de un régimen democrático. Se analizan los datos referidos a la percepción pública sobre las instituciones, los resultados electorales y el desempeño de los partidos tradicionales en los últimos ciclos electorales (elecciones generales de 2018 y municipales de 2020). Concluimos que el crecimiento de los partidos de centroderecha en las elecciones municipales de 2020 indica que – a pesar de la corrección analítica de la literatura sobre la posibilidad de corrosión interna de las democracias por el neopopulismo nacionalista – la tesis relativa a los gobernantes incidentales tiene fuertes indicios de mostrarse en Brasil.
Źródło:
Anuario Latinoamericano – Ciencias Políticas y Relaciones Internacionales; 2021, 11; 19-41
2449-8483
2392-0343
Pojawia się w:
Anuario Latinoamericano – Ciencias Políticas y Relaciones Internacionales
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chávez : prawdziwa historia kontrowersyjnego przywódcy Wenezueli
Prawdziwa historia kontrowersyjnego przywódcy Wenezueli
Comandante : inside Hugo Chavezs Venezuela
Autorzy:
Carroll, Rory (1972- ).
Współwytwórcy:
Romanek, Michał (1969- ). Redakcja
Müller, Łukasz. Redakcja
Społeczny Instytut Wydawniczy Znak. pbl
Data publikacji:
2013
Wydawca:
Kraków : Społeczny Instytut Wydawniczy Znak
Tematy:
Chávez Frías, Hugo (1954-2013)
Politycy Wenezuela 21 w.
Polityka
Biografia
Opis:
Bibliogr. s. 361-[362].
Dostawca treści:
Bibliografia CBW
Książka
Tytuł:
Amyloid beta enhances cytosolic phospholipase A2 level and arachidonic acid release via nitric oxide in APP-transfected PC12 cells
Autorzy:
Chalimoniuk, Małgorzata
Stolecka, Anna
Cąkała, Magdalena
Hauptmann, Susane
Schulz, Kris
Lipka, Uta
Leuner, Kristine
Eckert, Anne
Muller, Walter
Strosznajder, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/1041051.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
nitric oxide synthase
amyloid beta
calcium
arachidonic acid
antioxidative enzymes
reactive oxygen species
cytosolic phospholipase A_2
mitochondria
Opis:
Cytosolic phospholipase A2 (cPLA2) preferentially liberates arachidonic acid (AA), which is known to be elevated in Alzheimer's disease (AD). The aim of this study was to investigate the possible relationship between enhanced nitric oxide (NO) generation observed in AD and cPLA2 protein level, phosphorylation, and AA release in rat pheochromocytoma cell lines (PC12) differing in amyloid beta secretion. PC12 control cells, PC12 cells bearing the Swedish double mutation in amyloid beta precursor protein (APPsw), and PC12 cells transfected with human APP (APPwt) were used. The transfected APPwt and APPsw PC12 cells showed an about 2.8- and 4.8-fold increase of amyloid β (Aβ) secretion comparing to control PC12 cells. An increase of NO synthase activity, cGMP and free radical levels in APPsw and APPwt PC12 cells was observed. cPLA2 protein level was higher in APPsw and APPwt PC12 cells comparing to PC12 cells. Moreover, phosphorylated cPLA2 protein level and [3H]AA release were also higher in APP-transfected PC12 cells than in the control PC12 cells. An NO donor, sodium nitroprusside, stimulated [3H]AA release from prelabeled cells. The highest NO-induced AA release was observed in control PC12 cells, the effect in the other cell lines being statistically insignificant. Inhibition of cPLA2 by AACOCF3 significantly decreased the AA release. Inhibitors of nNOS and γ-secretase reduced AA release in APPsw and APPwt PC12 cells. The basal cytosolic [Ca2+]i and mitochondrial Ca2+ concentration was not changed in all investigated cell lines. Stimulation with thapsigargin increased the cytosolic and mitochondrial Ca2+ level, activated NOS and stimulated AA release in APP-transfected PC12 cells. These results indicate that Aβ peptides enhance the protein level and phosphorylation of cPLA2 and AA release by the NO signaling pathway.
Źródło:
Acta Biochimica Polonica; 2007, 54, 3; 611-623
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kałasznikow
Gun
Autorzy:
Chivers, Christopher John.
Współwytwórcy:
Müller, Łukasz. Tłumaczenie
Społeczny Instytut Wydawniczy Znak. pbl
Data publikacji:
2015
Wydawca:
Kraków : Znak Literanova
Tematy:
Kałasznikow, Michaił (1919-2013)
Karabiny maszynowe budowa i konstrukcje ZSRR
Uzbrojenie (wojsk.) od 1945 r.
Opis:
Tyt. oryg.: "The gun" 2010. Na okł. podtyt.: prawdziwa historia najsłynniejszej broni świata.
Dostawca treści:
Bibliografia CBW
Książka

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