Результаты поиска по 'globally':
Найдено статей: 64
  1. Makhov S.A.
    Forecasting demographic and macroeconomic indicators in a distributed global model
    Computer Research and Modeling, 2023, v. 15, no. 3, pp. 757-779

    The paper present a dynamic macro model of world dynamics. The world is divided into 19 geographic regions in the model. The internal development of the regions is described by regression equations for demographic and economic indicators (Population, Gross Domestic Product, Gross Capital Formation). The bilateral trade flows from region to region describes interregional interactions and represented the trade submodel. Time, the gross product of the exporter and the gross product of the importer were used as regressors. Four types were considered: time pair regression — dependence of trade flow on time, export function — dependence of the share of trade flow in the gross product of the exporter on the gross product of the importer, import function — dependence of the share of trade flow in the gross product of the importer on the gross product of the exporter, multiple regression — dependence of trade flow on the gross products of the exporter and importer. Two types of functional dependence were used for each type: linear and log-linear, in total eight variants of the trading equation were studied. The quality of regression models is compared by the coefficient of determination. By calculations the model satisfactorily approximates the dynamics of monotonically changing indicators. The dynamics of non-monotonic trade flows is analyzed, three types of functional dependence on time are proposed for their approximation. It is shown that the number of foreign trade series can be approximated by the space of seven main components with a 10% error. The forecast of regional development and global dynamics up to 2040 is constructed.

  2. Bogdanov A.V., Degtyreva Ya.A., Zakharchuk E.A., Tikhonova N.A., Foux V.R., Khramushin V.N.
    Interactive graphical toolkit global computer simulations in marine service operational forecasts
    Computer Research and Modeling, 2015, v. 7, no. 3, pp. 641-648

    Efficiency and completeness of the numerical simulation in oceanography and hydrometeorology are entirely determined by algorithmic features of the construction of an interactive computer simulations in the scale of the oceans with adaptive coated closed seas and coastal waters refined mathematical models, with the possibility of specifying software parallelization calculations near the concrete — the protected areas of the sea coast. An important component of the research is continuous graphical visualization techniques in the course of calculations, including those undertaken in parallel processes with shared RAM or test points on the external media. The results of computational experiments are used in the description of hydrodynamic processes near the coast, which is important in keeping the organization of sea control services and forecasting marine hazards.

    Citations: 1 (RSCI).
  3. Bondyakov A.S.
    Basic directions of information technology in National Academy of Sciences of Azerbaijan
    Computer Research and Modeling, 2015, v. 7, no. 3, pp. 657-660

    Grid is a new type of computing infrastructure, is intensively developed in today world of information technologies. Grid provides global integration of information and computing resources. The essence Conception of GRID in Azerbaijan is to create a set of standardized services to provide a reliable, compatible, inexpensive and secure access to geographically distributed high-tech information and computing resources a separate computer, cluster and supercomputing centers, information storage, networks, scientific tools etc.

    Views (last year): 6. Citations: 1 (RSCI).
  4. Molecular dynamic methods that use ReaxFF force field allow one to obtain sufficiently good results in simulating large multicomponent chemically reactive systems. Here is represented an algorithm of searching optimal parameters of molecular-dynamic force field ReaxFF for arbitrary chemical systems and its implementation. The method is based on the multidimensional technique of global minimum search suggested by R.G. Strongin. It has good scalability useful for running on distributed parallel computers.

    Views (last year): 1. Citations: 1 (RSCI).
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International Interdisciplinary Conference "Mathematics. Computing. Education"