Results 21 to 30 of about 12,679 (203)
Universe, 2020 We present a review of the influence of cosmic repulsion and external magnetic fields on accretion disks rotating around rotating black holes and on jets associated with these rotating configurations.
Zdeněk Stuchlík +4 more
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RESONANT SWITCH MODEL OF HF QPOS AND EQUATIONS OF STATE OF NEUTRON STARS AND QUARK STARS
Acta Polytechnica, 2014 The mass and spin estimates of the 4U 1636−53 neutron star obtained by the Resonant Switch (RS) model of high-frequency quasi-periodic oscillations (HF QPOs) are tested by a large variety of equations of state (EoS) governing the structure of neutron ...
Zdenek Stuchlík +4 more
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On the Canonical Connection for Smooth Envelopes
Demonstratio Mathematica, 2014 A notion known as smooth envelope, or superposition closure, appears naturally in several approaches to generalized smooth manifolds, which were proposed in the last decades. Such an operation is indispensable in order to perform differential calculus. A
Moreno Giovanni
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Trapping of null geodesics in slowly rotating spacetimes
European Physical Journal C: Particles and Fields, 2020 Extremely compact objects containing a region of trapped null geodesics could be of astrophysical relevance due to trapping of neutrinos with consequent impact on cooling processes or trapping of gravitational waves.
Jaroslav Vrba +3 more
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Categorization of Floods in the Opava River Basine [PDF]
Geografie, 2015 The paper summarizes our knowledge of the flood regime of the Opava river basin between 1960 and 2010. Emphasis is placed on the categorization of the individual components of the causes of flooding and the development of floods. Analogies were sought among floods based on their causal symptoms and the characteristics of the runoff response. Summer and
openaire +1 more source
Engineering Management in Production and Services, 2019 The simulation and modelling paradigms have significantly shifted in recent years under the influence of the Industry 4.0 concept. There is a requirement for a much higher level of detail and a lower level of abstraction within the simulation of a ...
Halaška Michal, Šperka Roman
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Impacts of the global pandemic on the aviation industry of the European Union [PDF]
SHS Web of Conferences, 2021 Research background: With the onset of the Covid-19 pandemic, there has been a complete collapse in demand in global markets due to restrictions on movement and market paralysis.
Botlíková Milena +2 more
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Musculoskeletal Care, Volume 18, Issue 4, Page 487-500, December 2020., 2020 Abstract Objective(s) The aim of this study is to test the feasibility and acceptability of promoting engagement in physical activity in early rheumatoid arthritis (PEPA‐RA) to inform a future trial. Design A ‘proof of concept’ study was carried out.
Fiona Cramp +7 more
wiley +1 more source
Plant Protection Science, 2014 In the period 2009-2011 monitoring of the incidence of phoma stem canker was carried out at selected sites of the Czech Republic (Šumperk and Opava regions in North Moravia).
Jana POSLUŠNÁ, Eva PLACHKÁ
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Profiles of emission lines generated by rings orbiting braneworld Kerr black holes [PDF]
, 2008 In the framework of the braneworld models, rotating black holes can be described by the Kerr metric with a tidal charge representing the influence of the non-local gravitational (tidal) effects of the bulk space Weyl tensor onto the black hole spacetime.
A. Laor +27 more
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