Механические испытания и построение аналитических моделей поведения материалов в условиях сверхпластичности. Часть I
The various test methods for determining the mechanical properties of materials in a state of superplasticity were considered. The tension depends from the deformation and strain rate, the structural parameter and temperature. The rheology and mechanics of superplastic deformation were discusses. Methodology has been tested and gave good results when tested Ti alloys and constructing mathematical models commissioned by EADS (Airbus). Information about the method of testing and subsequent approximation of the mechanical properties is of great interest for the development of adequate forecasts materials forming by pressure.
This paper the experimental research of dynamic characteristics self-similar scales of measurement financial time lines and quality check statistical, econometrics and intellectual methods of their analysis and forecasting is described. Research was carried out on 25 various financial time lines, including on lines of the prices of actions of the Russian and foreign companies, the prices for gold, oil, indexes of the MMVB, S&P, exchange rates, etc. The Analysis of these lines has confirmed presence of the common laws in change of structure of lines depending on scale.
This volume presents new results in the study and optimization of information transmission models in telecommunication networks using different approaches, mainly based on theiries of queueing systems and queueing networks .
The paper provides a number of proposed draft operational guidelines for technology measurement and includes a number of tentative technology definitions to be used for statistical purposes, principles for identification and classification of potentially growing technology areas, suggestions on the survey strategies and indicators. These are the key components of an internationally harmonized framework for collecting and interpreting technology data that would need to be further developed through a broader consultation process. A summary of definitions of technology already available in OECD manuals and the stocktaking results are provided in the Annex section.