Wydział Fizyki, Astronomii i Informatyki Stosowanej / Faculty of Physics, Astronomy and Informatics Przeglądanie wg tytułu
Repozytorium Uniwersytetu Mikołaja Kopernika
Wydział Fizyki, Astronomii i Informatyki Stosowanej / Faculty of Physics, Astronomy and Informatics Przeglądanie wg tytułu
Wyświetlono pozycje 82-101 z 239
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(2007-12-07)We present very simple method for constructing indecomposable entanglement witnesses out of a given pair -- an entanglement witness W and the corresponding state detected by W. This method may be used to produce new classes ...
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(Nicolaus Copernicus University Press, 2013)The increasing complexity of modern telecommunication systems causes difficulties in both teaching and learning computer networks. Students have to learn theories and specifications of different technologies but also need ...
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(1997-11-20)The recent development of tomographic analysis of radio data shows the presence of sheaths around several extragalactic jets. We have studied the Kelvin-Helmholtz instability of such stratified jets, describing them as ...
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(2017-03-23)This paper demonstrates how hyper-constructivist methodology used in interactive lectures and workshops in physics for children and young people develops both the individual identity of young people and their social ...
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(2013-10-01)A brief outlook of evolution of the concept of planet in astronomy and a very short summary of current status of extrasolar planet searches results are presented. It is shown that the concept evolved substantially between ...
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(2016-07-07)On constant movement of frontiers between Science and Theology. Part 2: Metaphysics In the first part (Karwasz, Scientia et Fides, 3(1) 2015) entitled “Physics” we showed how discoveries of modern sciences do not contradict ...
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(2015-06-01)On constant movement of frontiers between Theology and Science: Physics Pope Benedict XVI wrote in 1979 in “Four sermons on the Creation of world” that scientific discoveries cause a kind of retreat of the faith on “defensive” ...
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(2003-09-24)We present a numerical algorithm for the incorporation of the active cosmic ray transport, into the ZEUS-3D magnetohydrodynamical code. The cosmic ray transport is described by the diffusion-advection equation. The applied ...
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(2002-12-05)A set of simulations concerning the influence of internal energy on the stability of relativistic jets is presented. Results show that perturbations saturate when the amplitude of the velocity perturbation approaches the ...
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(Elsevier, 2011-02-13)Psycholinguistic theories of semantic memory form the basis of understanding of natural language concepts. These theories are used here as an inspiration for implementing a computational model of semantic memory in the ...
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(2007-12-14)We conduct a series of magnetohydrodynamical (MHD) simulations of magnetized interstellar medium (ISM) disturbed by exploding stars. Each star deposits a randomly oriented, dipolar magnetic field into ISM. The simulations ...
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(2019-02)Trends in scintillators that are used in many applications, such as medical imaging, security, oil-logging, high energy physics and non-destructive inspections are reviewed. First, we address traditional inorganic and ...
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(2014-02-19)Na przestrzeni ostatniej dekady mamy do czynienia z gwałtownym wzrostem wykorzystania komputerów we wszystkich sferach życia. Obecnie większość ludzi na świecie nie wyobraża sobie funkcjonowania bez komputera podłączonego ...
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(Towarzystwo Autorów i Wydawców Prac Naukowych UNIVERSITAS, 2011)
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Kelvin-Helmholtz instability of relativistic jets - the transition from linear to nonlinear regime (1997-11-23)The observed wiggles and knots in astrophysical jets as well as the curvilinear motion of radio emitting features are frequently interpreted as signatures of the Kelvin-Helmholtz (KH) instability (eg. Hardee 1987). We ...
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(1996-04-25)We investigate the Kelvin-Helmholtz instability of stratified jets. The internal component (core) is made of a relativistic gas moving with a relativistic bulk speed. The second component (sheath or envelope) flows between ...
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(Wydawnictwo Naukowe Uniwersytetu Mikołaja Kopernika, 2016)W ostatnich latach obserwowany jest bardzo dynamiczny rozwój technologii informatycznych oraz związanych z nimi różnych usług sieciowych. Obecnie mamy do czynienia ze zjawiskiem polegającym na podłączaniu do sieci coraz ...
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(Strasbourg, France 23-27 April 2012, )One of the possible sources of an anisotropy in the power spectrum of 21 cm brightness fluctuations from the epoch of reionization is the delay in light traveltime along the line-of-sight. We examine the anisotropy between ...
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(Oxford University Press, 2014-01)Using a suite of detailed numerical simulations we estimate the level of anisotropy generated by the time evolution along the light cone of the 21 cm signal from the epoch of reionization. Our simulations include the physics ...
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(Springer Nature, 2020-06-24)Two-dimensional lead halide perovskites have demonstrated their potential as high-performance scintillators for X- and gamma-ray detection, while also being low-cost. Here we adopt lithium chemical doping in two-dimensional ...
Wyświetlono pozycje 82-101 z 239