Analyzing of heating elements' location of distributed control objects
At the present stage of development of automatic control systems the issue of maintaining of a given temperature regime appears. The authors have developed a method of synthesis of nonlinear regulators to stabilize a control object temperature field (published by Ilyushin, Y., Pervukhin, D., Afanasieva, O., Klavdiev, A., & Kolesnichenko, S. (2014). The Methods of the Synthesis of the Nonlinear Regulators for the Distributed One-Dimension Control Objects. Modern Applied Science, 9(2), 42–61. http://dx.doi.org/10.5539/mas.v9n2p42). The resulting controller allows creating an adaptive regulated system to maintain a temperature field - to do that, it is necessary to analyze a control system in order to find an optimal number of heating elements to stabilize a temperature field. In this there have been article obtained functions for calculating an optimal number of heating elements of silicon-carbide heaters, used for a temperature treatment of various kinds of products (bread baking, metal hardening, etc.). The article describes a method to calculate the number of heating elements of n-dimensional control objects. A check of an adequacy of a mathematical model, obtained within a synthesis process is provided as well. Obtained hodographs of the system demonstrate a stability of running processes and therefore an adequacy of results.
The Methods of the Synthesis of the Nonlinear Regulators for the Distributed One-Dimension Control Objects
In this paper the method of synthesis of distributed regulator, uniform control object is regarded, which is based on the specified inaccuracy. The function of the initial heating has been received; the mathematical modeling of the process has been conducted as well as the analysis of the results. With the help of the obtained regulator hardware and software complex has been designed in the Pascal programming language, the complex allows to simulate the behavior of the temperature fields in the isotropic rod. The article presents the simulation of the temperature process for different configurations of the system. Namely, there is simulation with different number of impulsive heating sources with the relay control principle. The practical results of these studies suggest the possibility of building silicon carbide heating element, made in the form of an isotropic rod.
The Problems and Opportunities in Developing International Business Programs
This paper discusses the results of a survey conducted among AACSB member schools. The survey dealt with two major topical areas. These were (a) what types of International Business programs currently exist in AACSB Schools, and (b) problems associated with these programs. The paper also suggests countries that offer opportunities to Colleges of Business to pursue countty-specific programs.