The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A typical first step in the system analysis or design process is to decompose, hierarchically, the system into subsystems until each subsystem admits no useful decomposition, or is seen to exist, or is recognized as designable. For the actual design work, groups of these pensile subsystems are assigned to design groups and their efforts interconnected to give the overall system. The present paper...
In this paper the convergence of an approximate solution for an optimal control problem related to a special distributed parameter system is investigated.
A new general version of the Cournot equilibrium model is introduced, where each firm simultaneously produces several kinds of items, and it is assumed that the price vectors and cost functions depend on the total and own production levels of the producers, respectively. A new existence theorem is first stated and the relation of the equilibrium problem and fixed-point problems of low dimensional...
This study gives a sketch of the application of multicriteria evaluation in transport. The author introduces a technique of matrix-analysis developed from a cross-impact method. She makes an investigation of efficiency with this technique on freight transport on Hungarian State Railways. The paper evaluates the technique of multidimensional data-analysis and introduces the possibilities...
The aim of the present paper is to treat the inhomogeneous machine interference model by the Markov Renewal Theory. This approach enables one to find the steady-state characteristics of the model without getting involved in analytical questions like smoothness of stationary distribution (cf. theorem 2.1. in [1]). The formulae (2.2) for expected sojourn times in a subset of state space allows an elegant...
In this paper it is presented how the results of classical elastic finite element method can be used if the problem is solved in the stress space. Both, the elastic and elasto-plastic analysis are formulated as mathematical programming problems. Such a kind of feasible direction method is presented the steps of which have a mechanical meaning as well. A thick curvated shell element was computed by...
Investigation of materials should be described by the measure theoretical model based on the ideas element, property of element, component and quantity of component. Metrological /diagnostical, measuring, qualifying/ systems consist of investigation and correlation modelling investigation. In the case of linear investigation, the model of investigation can be regarded as mixture distribution. ...
The central server model plays an important role in the analysis of computer systems. With the use of product form assumptions this model can be solved efficiently. In more detailed computer models. however. the product form assumptions are often violated. Still, both recursive and iterative approximation methods based on the central server model, are successfully applied in these cases. In this paper...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.