# Published Articles

Ostatnio dodane:
2014-03-11
05:23
 The physics of a walking robot / Güémez, Julio ; Fiolhais, Manuel The physics of walking is explored, using a toy as a concrete example and a 'toy' model applied to it. Besides the Newton's second law, the problem is also discussed from the thermodynamical perspective. [...] arXiv:1403.2326.- 2014 - 6 p. - Published in : Phys. Educ. 48 (2013) 455-458 External link: Preprint

2014-03-11
05:23
 Non-linear mass-spring system for large soft tissue deformations modeling / Nikolaev, Sergei Implant placement under soft tissues operation is described. In this operation tissues can reach such deformations that nonlinear properties are appeared. [...] arXiv:1403.2294.- 2014 - 9 p. - Published in : Mechanics and Optics: 5 (2013) , pp. 88-94 External link: Preprint

2014-03-11
05:22
 Numerical Simulation of Grating Couplers for Mode Multiplexed Systems / Wohlfeil, B ; Burger, S ; Stamatiadis, C ; Pomplun, J ; Schmidt, F ; Zimmermann, L ; Petermann, K A numerical investigation of a two dimensional integrated fiber grating coupler capable of exciting several LP fiber modes in both TE and TM polarization is presented. Simulation results and an assessment of the numerical complexity of the 3D, fully vectorial finite element model of the device are shown.. arXiv:1403.2288.- 2014 - Published in : Proc. SPIE Vol. 8988 (2014) 89880 External link: Preprint

2014-03-11
05:22
 Non-invasive geophysical investigation and thermodynamic analysis of a palsa in Lapland, northwest Finland / Kohout, Tomáš ; Bućko, Michał S ; Rasmus, Kai ; Leppäranta, Matti ; Matero, Ilkka Non-invasive geophysical prospecting and a thermodynamic model were used to examine the structure, depth and lateral extent of the frozen core of a palsa near Lake Peeraj\"arvi, in northwest Finland. A simple thermodynamic model verified that the current climatic conditions in the study area allow sustainable palsa development. [...] arXiv:1403.2211.- 2014 - Published in : Permafrost and Periglacial Processes 25 (2014) 45-52 External link: Preprint

2014-03-11
05:22
 Population dynamics with nonlinear delayed carrying capacity / Yukalov, V I ; Yukalova, E P ; Sornette, D We consider a class of evolution equations describing population dynamics in the presence of a carrying capacity depending on the population with delay. In an earlier work, we presented an exhaustive classification of the logistic equation where the carrying capacity is linearly dependent on the population with a time delay, which we refer to as the "linear delayed carrying capacity" model. [...] arXiv:1403.2051.- 2014 - 24 p. - Published in : Int. J. Bifur. Chaos: 24 (2014) , pp. 1450021 External link: Preprint

2014-03-11
05:22
 Rotational response of superconductors: magneto-rotational isomorphism and rotation-induced vortex lattice / Babaev, Egor ; Svistunov, Boris The analysis of nonclassical rotational response of superfluids and superconductors was performed by Onsager (in 1949) \cite{Onsager} and London (in 1950) \cite{London} and crucially advanced by Feynman (in 1955) \cite{Feynman}. It was established that, in thermodynamic limit, neutral superfluids rotate by forming---without any threshold---a vortex lattice. [...] arXiv:1311.5418.- 2014 - Published in : Phys. Rev. B 89 (2014) 104501 External link: Preprint

2014-03-11
05:22
 Density-dependent symmetry energy at subsaturation densities from nuclear mass differences / Fan, Xiaohua ; Dong, Jianmin ; Zuo, Wei We extract the mass-dependent symmetry energy coefficients $a_{\text{sym}}({A})$ with the nuclear mass differences reducing the uncertainties as far as possible. The estimated $a_{\text{sym}}({A})$ of $^{208}\text{Pb}$ is $22.4\pm 0.3$ MeV, which is further used to analyze the density-dependent nuclear matter symmetry energy at subsaturation densities. [...] arXiv:1403.2055.- 2014 - 4 p. - Published in : Phys. Rev. C 89 (2014) 017305 External link: Preprint

2014-03-11
05:22
 Measurement of the beam-helicity asymmetry $I^{\odot}$ in the photoproduction of $\pi^0\pi^{\pm}$-pairs off protons and off neutrons / Oberle, M ; Ahrens, J ; Annand, J R M ; Arends, H J ; Bantawa, K ; Bartolome, P A ; Beck, R ; Bekrenev, V ; Berghaeuser, H ; Braghieri, A et al. Beam-helicity asymmetries have been measured at the MAMI accelerator in Mainz for the photoproduction of mixed-charge pion pairs in the reactions $\boldsymbol{\gamma}p\rightarrow n\pi^0\pi^+$ off free protons and $\boldsymbol{\gamma}d\rightarrow (p)p\pi^0\pi^-$ and $\boldsymbol{\gamma}d\rightarrow (n)n\pi^0\pi^+$ off quasi-free nucleons bound in the deuteron for incident photon energies up to 1.4 GeV. Circularly polarized photons were produced from bremsstrahlung of longitudinally polarized electrons and tagged with the Glasgow-Mainz magnetic spectrometer. [...] arXiv:1403.1989.- 2014 - Published in : Eur. Phys. J. A 50 (2014) 54 External link: Preprint

2014-03-11
05:21
 Nucleon Properties at Finite Temperature in the Extended Quark-Sigma Model / Abu-Shady, M ; Abu-Nab, A K Hadron properties are studied at hot medium using the quark sigma model. The quark sigma model is extended to include eighth-order of mesonic interactions based on some aspects of quantum chromodynamic (QCD) theory. [...] arXiv:1403.1945.- 2014 - 6 p. - Published in : American Journal of Physics and Applications. Vol. 2, No. 2, 2014, pp. 46-51 External link: Preprint

2014-03-11
05:21
 QCD thermodynamics on the lattice / Sharma, Sayantan A remarkable progress has been made in the understanding of the hot and dense QCD matter using lattice gauge theory. The issues which are very well understood as well those which require both conceptual as well as algorithmic advances are highlighted. [...] arXiv:1403.2102.- 2014 - 26 p. - Published in : Adv.High Energy Phys. 2013 (2013) 452978 External link: Preprint

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