Numerical simulation of wave processes in elastic-acoustic problems using discontinuous Galerkin method on triangle unstructured meshes
Wave propagation through coupled elastic-acoustic media for marine seismology, comparison of reflected waves in fluid-filled and infinite thin crack model and underwater objects detection are simulated using discontinuous Galerkin method on triangle unstructured meshes.
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2. Käser M., Dumbser M. Highly. Accurate discontinuous Galerkin method for complex ...
Priorities for the development of manufacturing industries in the Kaliningrad region
... region’s exclave status, which makes it reliant on external factors, hinders its development. Any change in these external factors could necessitate a restructuring of manufacturing industries. The severing of former foreign economic and social ties, the discontinuation of cross-border cooperation due to the actions of unfriendly countries, and the imposition of eleven packages of unlawful anti-Russian sanctions have had a more pronounced impact on the regional economy compared to the country’s inland ...
New possibilities of passive microseismic monitoring applying for structural-tectonic features detection of oil and gas fields
... multifunctional surface small aperture aerial technology of microseismic monitoring. This technology is used for monitoring of hydraulic fractioning, fluid injection and for other well interventions. In addition it allows to describe crosshole block discontinues structures of collector in the mode of long passive microseismic monitoring. First in the world, there is presented crosshole block discontinues model of hydrocarbon field obtained based on microseismic monitoring.
1. Гидравлический ...
Modeling of Wave Processes in High Speed Impacts with Smoothed Particle Hydrodynamics Method
... modeling of high speed impact with different variants of the smoothed particle hydrodynamics method and applying this method to the solution of problems of mechanics of the deformed solid body.Results of solution of the problem of disintegration of discontinuity were obtained and comparative analysis was performed.
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Study of the physical and geographical conditions of the territory of the Kemerovo region — Kuzbass for the purpose of reclamation works
... physico-geographical conditions of the Kemerovo Region — Kuzbass to carry out reclamation work. The main deposits of the region are located in the mountainous areas of the Kuznetsk Alatau, Salair, and Mountain Shoria. Combustible minerals belong to a discontinuous belt in the central part of the region, where more favorable conditions for sediment accumulation are created. Kemerovo Region is characterized by diverse geomorphological conditions and a varied climate. The main factors contributing ...
Regional railway transport system of the Transcaucasia: passenger direction of work
... post-Soviet period, passenger rail transport has declined, and its potential is underutilized: the volume of transportation is minimal, the movement intensity is low, and on a significant portion of the network, passenger transport has been completely discontinued. One notable exception in recent years is the Baku agglomeration. The decline can be attributed to the dissolution of the Soviet Union and the subsequent fragmentation of the region's railway network, competition from air and road transport,...
The border as a barrier and an incentive for the structural economic transformation of the Kaliningrad exclave
... with reference to the general requirements of the EU and in violation of transit agreements, Lithuania closed the transit of sanctioned products through its territory, including construction cargoes. At the end of the year, the transport of fuel was discontinued as well. The counter-sanctions also had an impact. For example, the Belarusian authorities, in response to the European sanctions, banned foreign carriers from operating on their territory, which required the transshipment of goods when ...
Three Russian Baltic regions in the context of confrontation between Russia and the West
... “Baltic Sea Region” has been terminated. Joint projects with the Northern Dimension Partnership have been halted. In response to hostile actions, Russia withdrew from the Barents Euro-Arctic Council in May. In July, Russia declared its decision to discontinue cooperation with the Nordic Council of Ministers. The operations of Euroregions, in which the Kaliningrad region formally participated (though, by 2022, only two, namely “Baltica” and “Neman,” remained active), have come to a complete ...
Estonian ‘Balticness’ as a social construct: meanings and contextual specifics
... Baltic Appeal) or current defence and security problems (Baltic air-policing). The only notable phrase that occurs in a different context is Rail Baltic. However, the project carrying this name has experienced so many delays that it can be considered discontinued and most of its positive symbolic potential nullified.
Interestingly, trilateral Baltic institutions, such as the Baltic Assembly and the Baltic Council of Ministers, had the fewest mentions in the statements of Estonian politicians. Therefore,...
Ports of Eastern Baltic and Russian transit policy: competition and cooperation
... University Press, 164 p.
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Decay of a weak gap and wave propagation in a nonlocal environment with a source
... negative (a source in biological tissue). The wave velocity (subsonic, sonic, supersonic) is determined with respect to the velocity of propagating heat perturbations. We give examples of the exact solving the problem of disintegration of a weak discontinuity in the temperature field. This problem is set as follows. In the initial state the continuous thermal field contains a point of a weak discontinuity; in that point the first coordinate derivative undergoes a first-order rupture. Further ...
ΛCDM-model with δ-function
... introduce a simplified model with the δ-function and use the weak anthropic principle. It is shown that our model predicts a rather soon appearance of the SFS-singularity.
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The effect of railway network evolution on the Kaliningrad region’s landscape environment
... types of railway infrastructure are identified in the Kaliningrad region – modern (functioning) and relic (abandoned) ones. In the Kaliningrad region, the process of land reclamation of the railway system starts when the maintenance of railroads is discontinued, which is followed by the formation of primitive soils and emerging biocenoses enhanced by fill soils and artificial relief.
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Latvia in the System of European Territorial Security: a View from the Inside and Outside
... is the validation of a systemic approach to studying regional security systems. This angle proves particularly useful in identifying crises of territorial systems of regional security in various regions of the world.
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Network Transformations in Economy
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