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Kaliningrad, Russia

Immanuel Kant Baltic Federal University formerly known as the Immanuel Kant Russian State University , or in brief the Kant University and as Kaliningrad State University , is a university in the Russian city of Kaliningrad .The university claims to maintain the traditions of its German predecessor, the German University of Königsberg . Wikipedia.

Gavrilov N.M.,Saint Peterburg State University | Kshevetskii S.P.,Immanuel Kant Baltic Federal University
Advances in Space Research | Year: 2015

We performed numerical simulations of nonlinear AGW propagation to the middle and upper atmosphere from a plane wave forcing at the Earth's surface with period τ = 2 × 103 s. After activating the surface wave forcing, initial pulse of acoustic and very long gravity modes in a few minutes can reach altitudes above 100 km. Dissipation of this initial pulse produces substantial mean heating and wave-induced mean winds at altitudes above 200 km. This may influence AGW propagation and produce enhanced vertical gradients of temperature, horizontal velocity and increased wave dissipation in the lower part of the wave-induced mean flows helping their downward expansions. Later, AGWs may produce layers of convective instability and peaks of the wave-induced jets at altitudes 100-120 km. Shorter AGWs with smaller horizontal wave speeds produce smaller mean heating and wave-induced mean velocities in the upper atmosphere at fixed amplitudes and periods of the surface wave excitation. Numerical simulation of nonlinear AGW propagation helps better understanding the details of dynamical and thermal influence of waves coming from the troposphere on the mean temperature and wind in the middle and upper atmosphere. © 2015 COSPAR. Published by Elsevier Ltd. All rights reserved. Source

Mikhaylov A.S.,Immanuel Kant Baltic Federal University
European Journal of Scientific Research | Year: 2014

Mikhaylova A. A. Immanuel Kant Baltic Federal University, A. Nevskogo str.14, Kaliningrad, 236041, Kaliningrad region, Russia This article reveals the spatial and sectoral distribution of international clusters in the Baltic macro-region. The research results suggest that there are 28 international clusters in the Baltic region, all of which have an organized structure and are supported by the state. An overwhelming majority of identified clusters represent cross-border type. The most prosperous cross-border regions in this regard are Oresund, Jutland, Bothnian Arc and Oslo - Vaster Gotland (or the GO region). Nearly half of the international clusters studied represent knowledge intensive sectors of economy and almost all are associated with the introduction of innovative solutions. A quarter of all international clusters of the macro-region are engaged in the life science sector, which could be a competitive niche of the Baltic region on the global scale. © European Journals Inc 2014. Source

Zaytsev A.,Immanuel Kant Baltic Federal University
Finite Fields and their Applications | Year: 2016

We investigate maximal and minimal curves of genus 4 and 5 over finite fields with discriminant -11 and -19. As a result the Hasse-Weil-Serre bound is improved. © 2015 Elsevier Inc. All rights reserved. Source

Horvath V.,Brandeis University | Horvath V.,Eotvos Lorand University | Gentili P.L.,Brandeis University | Gentili P.L.,University of Perugia | And 3 more authors.
Angewandte Chemie - International Edition | Year: 2012

Finger on the pulse: In a system of two pulse-coupled Belousov-Zhabotinsky oscillators, introducing a time delay or increasing the coupling strength brings about novel dynamic features (see picture, the two oscillators are shown in different colors), such as reversal of the roles of excitatory and inhibitory coupling or fast anti-phase oscillation. These features are not observed in diffusively coupled systems, and shed light on how such pulse coupling occurs at synapses. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Astashenok A.V.,Immanuel Kant Baltic Federal University | Odintsov S.D.,Catalan Institution for Research and Advanced Studies | Odintsov S.D.,Institute Of Ciencies Of Lespai Csic Ieec | Odintsov S.D.,Eurasian University | Odintsov S.D.,Tomsk State Pedagogical University
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | Year: 2013

We confront dark energy models which are currently similar to ΛCDM theory with observational data which include the SNe data, matter density perturbations and baryon acoustic oscillations data. DE cosmology under consideration may evolve to Big Rip, type II or type III future singularity, or to Little Rip or Pseudo-Rip universe. It is shown that matter perturbations data define more precisely the possible deviation from ΛCDM model than consideration of SNe data only. The combined data analysis proves that DE models under consideration are as consistent as ΛCDM model. We demonstrate that growth of matter density perturbations may occur at sufficiently small background density but still before the possible disintegration of bound objects (like clusters of galaxies, galaxies, etc.) in Big Rip, type III singularity, Little Rip or Pseudo-Rip universe. This new effect may bring the future universe to chaotic state well before disintegration or Rip. © 2012. Source

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