Artykuły (WFAIS) Przeglądanie wg tytułu
Wyświetlono pozycje 41-60 z 219
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(2010-06-15)We provide a class of optimal nondecomposable entanglement witnesses for 4N x 4N composite quantum systems or, equivalently, a new construction of nondecomposable positive maps in the algebra of 4N x 4N complex matrices. ...
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(2012)A Context Search algorithm used for lexical knowledge acquisition is presented. Knowledge representation based on psycholinguistic theories of cognitive processes allows for implementation of a computational model of ...
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(American Chemical Society, 2022)Recent advancements in infrared frequency combs will enable facile recording of coherent two-dimensional infrared spectra of gas-phase molecules with rotational resolution (RR2DIR). Using time-dependent density-matrix ...
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(2008-12-31)We present new developments on the Cosmic--Ray driven, galactic dynamo, modeled by means of direct, resistive CR--MHD simulations, performed with ZEUS and PIERNIK codes. The dynamo action, leading to the amplification of ...
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(2011-02-07)We present recent developments of global galactic-scale numerical models of the Cosmic Ray (CR) driven dynamo, which was originally proposed by Parker (1992). We conduct a series of direct CR+MHD numerical simulations of ...
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(2010-09-27)Irregular galaxies are usually smaller and less massive than their spiral, S0, and elliptical counterparts. Radio observations indicate that a magnetic field is present in irregular galaxies whose value is similar to that ...
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(2009-01-12)We investigate the cosmic ray driven dynamo in the interstellar medium of irregular galaxy. The observations (Chyzy et al. 2000, 2003) show that the magnetic field in irregular galaxies is present and its value reaches the ...
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(2011-01-02)We study the global evolution of the magnetic field and interstellar medium (ISM) of the barred and ringed galaxies in the presence of non-axisymmetric components of the potential, i.e. the bar and/or the oval perturbations. ...
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(2008-12-19)We present a parameter study of the magnetohydrodynamical dynamo driven by cosmic rays in the interstellar medium (ISM) focusing on the efficiency of magnetic field amplification and the issue of energy equipartition between ...
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(2024-02-28)We present the results of the spectral line-shape study of the first measurement of the extremely weak (7–0) band of the 12C16O molecule. Measurements were done with a highly sensitive cavity ring-down spectrometer. Collisional ...
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(Muzeum Okręgowe w Toruniu, 2011)Zegar słoneczny jest najbardziej naturalnym, a zarazem jednym z pierwszych instrumentów, jakie stosowano do pomiaru czasu. Autorzy podejmują próbę przedstawienia historii toruńskich zegarów słonecznych, która dotąd nie ...
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(IOP Publishing Ltd, 2023-11-07)We propose and explore a notion of decomposably divisible (D-divisible) differentiable quantum evolution families on matrix algebras. This is achieved by replacing the complete positivity requirement, imposed on the ...
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(Springer, 2013)In this paper, experimental photoluminescence(PL) andpiezoelectricphotothermal (PPT) spectra of selected II–VI binary crystals are presented and analyzed. The quantitative analysis of the photothermal spectra was performed ...
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(2007-10-17)We analyze the electromotive force (EMF) terms and basic assumptions of the linear and nonlinear dynamo theories in our three-dimensional (3D) numerical model of the Parker instability with cosmic rays and shear in a ...
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(Elsevier B.V., 2014)Thermoluminescence (TL) of strontium orthosilicate doped with Eu2+ has been investigated in the range RT- 750 K. Trap parameters of a TL peak at 450 K established by means of glow curve analysis suggest the possibility of ...
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(Elsevier, 2015)Zn1-x-yBexMgySe mixed crystals investigated in this work were grown from the melt by the high pressure high temperature modified Bridgman method in the range of composition 0 < x,y < 0.33. Photopyroelectric (PPE) calorimetry ...
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(Optical Society of America, 2012)Speckle pattern, which is inherent in coherence imaging, influences significantly axial and transversal resolution of Optical Coherence Tomography (OCT) instruments. The well known speckle removal techniques are either ...
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(2021-12-10)Gated trilayer graphene shows energy gap and three topologically protected gaplessstates when the stacking order changes from ABC to CBA. Here we such a trilayer, but with a part of the internal layer cut and removed ...
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(European Physical Society, 2017-06-01)Reliable cross-sections for electron-molecule collisions are urgently needed for numerical modeling of various processes important from technological point of view. Unfortunately, a significant progress in theory and ...
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(2010-02-18)We show that each entanglement witness detecting given bipartite entangled state provides an estimation of its concurrence. We illustrate our result with several well known examples of entanglement witnesses and compare ...
Wyświetlono pozycje 41-60 z 219