The development of economic system in case of differential optimization (for one-sector dynamic model)

2005 ◽  
pp. 473-481
Author(s):  
V. Zhiyanov
Keyword(s):  
Economic System ◽  
Dynamic Model

Digital heterogeneous dynamic model of peled Coregonus peled Gmelin

Fisheries ◽  
2020 ◽  
Vol 2020 (5) ◽  
pp. 80-85
Author(s):  
Dina Naumkina ◽  
Alexander Rostovtsev ◽  
Alexandr Abramov
Keyword(s):  
Economic System ◽  
Dynamic Model ◽  
Block Diagram ◽  
Fish Biomass ◽  
Working Capital ◽  
Complex Dynamic ◽  
Time Dynamics ◽  
Food Fish ◽  
Under Construction

The article provides an example of constructing a complex dynamic model of a biological and economic system with the commodity two-year-old peled growing in Lake Ik in 2017-2018 as a case study. A brief description of the lake and a detailed description of the principle of constructing a heterogeneous dynamic model are given. A block diagram of a heterogeneous biological and economic system is under construction. The scenario of temporal development of the system is described. As a result, the model itself is presented in the form of graphs showing time dynamics of the amount of food, fish biomass, and working capital of the peled growing business process.

scholarly journals Application of risk management principles in macroeconomic regulation

2021 ◽  
Vol 116 ◽  
pp. 00009
Author(s):  
Uliana Aftakhova ◽  
Eugeny Zhulanov ◽  
Aleksandr Aftakhov
Keyword(s):  
Risk Management ◽  
Economic System ◽  
Dynamic Model ◽  
National Economy ◽  
Social Economic ◽  
The Social ◽  
Strategic Goals ◽  
Backward Linkages ◽  
Managerial System ◽  
Perm Region

The article confirms the urgency of coordination strategic and tactical management of the country social-economic system on the basis of the principles and methods of risk management. It proposes an economic-mathematical dynamic model, describes an advanced complex of forward and backward linkages between national economy and its managerial system. This approach allows predicting and implementing development vector of a system more accuracy on the way to achieving its strategic goals. The authors’ approach was tested on the base of the social and economic system of the Perm Region.

Short-term volume and turgor regulation in yeast

2008 ◽  
Vol 45 ◽  
pp. 147-160 ◽  
Author(s):  
Jörg Schaber ◽  
Edda Klipp
Keyword(s):  
Dynamic Model ◽  
Volume Change ◽  
Volume Regulation ◽  
Time Course ◽  
Osmotic Shock ◽  
Intracellular Concentration ◽  
Short Term ◽  
Hydrodynamic Property ◽  
Turgor Regulation ◽  
Thermodynamic Framework

Volume is a highly regulated property of cells, because it critically affects intracellular concentration. In the present chapter, we focus on the short-term volume regulation in yeast as a consequence of a shift in extracellular osmotic conditions. We review a basic thermodynamic framework to model volume and solute flows. In addition, we try to select a model for turgor, which is an important hydrodynamic property, especially in walled cells. Finally, we demonstrate the validity of the presented approach by fitting the dynamic model to a time course of volume change upon osmotic shock in yeast.

THE STATISTICAL GEOMETRY OF THE STRUCTURE OF THE MOLECULAR DYNAMIC MODEL OF LIQUID AND AMORPHOUS ALUMINIUM

1980 ◽  
Vol 41 (C8) ◽  
pp. C8-284-C8-288 ◽  
Author(s):  
V. A. Poluchin ◽  
M. M. Dzugutov ◽  
V. F. Uchov ◽  
R. A. Vatolin
Keyword(s):  
Molecular Dynamic ◽  
Dynamic Model ◽  
Statistical Geometry ◽  
Molecular Dynamic Model

Study of the dynamics of ТПА 350 automatic mill working stand elements

2020 ◽  
Vol 76 (8) ◽  
pp. 830-840
Author(s):  
S. R. Rakhmanov ◽  
V. V. Povorotnii
Keyword(s):  
Mechanical System ◽  
Dynamic Model ◽  
Maximum Amplitude ◽  
Calculation Scheme ◽  
Dynamic Loads ◽  
Forced Oscillations ◽  
Mass Model ◽  
Automatic Mill ◽  
Hollow Billet ◽  
Oscillation Movement

To form a necessary geometry of a hollow billet to be rolled at a pipe rolling line, stable dynamics of the base equipment of the automatic mill working stand has a practical meaning. Among the forces, acting on its parts and elements, significant by value short-time dynamic loads are the least studied phenomena. These dynamic loads arise during transient interaction of the hollow billet, rollers, mandrel and other mill parts at the forced grip of the hollow billet. Basing of the calculation scheme and dynamic model of the mechanical system of the ТПА 350 automatic mill working stand was accomplished. A mathematical model of dynamics of the system “hollow billet (pipe) – working stand” within accepted calculation scheme and dynamic model of the mechanical system elaborated. Influence of technological load of the rolled hollow billet variation in time was accounted, as well as variation of the mechanical system mass, and rigidity of the ТПА 350 automatic mill working stand. Differential equations of oscillation movement for four-mass model of forked sub-systems of the automatic mill working stand were made up, results of their digital calculation quoted. Dynamic displacement of the stand elements in the inter-roller gap obtained, which enabled to estimate the results of amplitude and frequency characteristics of the branches of the mill rollers setting. It was defined by calculation, that the maximum amplitude of the forced oscillations of elements of the ТПА 350 automatic mill working stand within the inter-roller gap does not exceed 2 mm. It is much higher than the accepted value of adjusting parameters of the deformation center of the ТПА 350 automatic mill. A scheme of comprehensive modernization of the rollers setting in the ТПА 350 automatic mill working stand was proposed. It was shown, that increase of rigidity of rollers setting in the ТПА 350 automatic mill working stand enables to stabilize the amplitude of forced oscillations of the working stand elements within the inter-rollers gap and considerably decrease the induced nonuniform hollow billet wall thickness and increase quality of the rolled pipes at ТПА 350.

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