Temat: structural model - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Optimization of the structural components of gearwheels of cylindrical reducing gears
Autorzy:: Vasyljeva, O.
Kuzio, I.
Powiązania:: https://bibliotekanauki.pl/articles/410803.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:: optimization
structural components of a tooth gearwheel
optimizing model
tooth gearwheel strength
gearwheel reliability
Opis:: For the first time the design equations for determining the structural components of cylindrical tooth gears of reduction units are improved allowing for the use of informational technologies (IT). On the basis of the equations obtained the optimizing mathematical model of the optimal synthesis of structural components of tooth gearwheels has been developed. For solving the optimizing model the Monte-Carlo method is applied. The structural parameters (quantities), obtained by the developed optimizing mathematical model, have optimal values with probability up to 0.95 under the conditions of necessary strength and production safety. The implementation of the optimization process is recommended at the design institutions for the design of the cylindrical reduction drives for different objects of mechanical engineering and into the educational process of higher technical educational institutions while studying theoretical matters, accompanied by the use of IT.
Źródło:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2014, 3, 1; 127-132
2084-5715
Pojawia się w:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Model of sustainable development of the national economy of Ukraine: assessment of current state and prospects of development
Autorzy:: Kuzmin, O.
Shpak, N.
Pyrog, O.
Powiązania:: https://bibliotekanauki.pl/articles/411408.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:: economic model
sustainable development
structural changes
national economy
system of public administration
energy saving
Ukraine
Opis:: The article considers the research of sustainable development model of national economy of Ukraine at the modern conditions. Determine the structural changes of national economy of Ukraine at the period of 2001 – 2012. During the period from 2001 to 2012 increase of the share of economic activities of the sphere of immaterial production, while reduction of the share of economic activities of the sphere of material production. The lack of progress in the development and implementation of new technologies prevented the improvement of industrial competitiveness, which partly led to a deep structural crisis and drop in production. The share of type of economic activity in the structure of the national economy does not affect its importance for the development of national economy. The poor energy efficiency of Ukraine poses a serious threat to its economic security that results in a deformed structure of production and consumption, in the usage of old technology of production of energy and in slow implementation of energy saving technologies. For sustainable development of Ukrainian national economy at unstable modern conditions must improving public-private partnership in the field of energy efficiency are substantiated.
Źródło:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2016, 5, 1; 43-50
2084-5715
Pojawia się w:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Synthesis system models of choice the priorities at realization of national foresight-researches
Autorzy:: Shostak, I.
Danova, M.
Powiązania:: https://bibliotekanauki.pl/articles/411021.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:: technology foresight
scientific and technical development
system model
national foresightresearches
types of foresight
structural elements of foresight
Opis:: The analysis of implementation technology foresight in various countries is carried out which showed that for today foresight is used as the system instrument of formation the future allowing to consider changes in All spheres of public life: science and technologies, economy, social, public relations, culture. Types and structural elements of technology foresight are separated. The necessity of further research the problem associated with increasing the efficiency of foresight-projects through its informatization is shown. The aim of the article is to describe process of synthesis the model of informatization as technologies foresight in general, and its specific variants (foresight-project). Informative and formal statements of problems synthesis system model (SM) choice of priorities in the implementation of national foresight-researches are given. Approach to construction of SM technology foresight in the form of the two-level hierarchical system consisting of the functional and methodical levels is offered. At that the functional level includes a set of types and purposes of technology foresight, and methodical - reflects a transition way from input elements to output. For a further concretization of SM, taking into account the selected properties of discrecity and determinancy, the mathematical apparatus of the automata theory is used. In this case the system is represented in the form of automaton chich processes the discrete information and changes its internal states only in admissible timepoints. For computer implementation of model technology foresight is supposed to use network models which, in general, provide adequacy of the formal representation of foresight-researches. Reasonability of use the apparatus of Joiner-networks (JN) defines a connectivity and directivity of transmission of output results as input alphabets is shown.
Źródło:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2015, 4, 3; 19-24
2084-5715
Pojawia się w:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:: Biblioteka Nauki

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