The current practice to validate flight control laws relies on applying linear analysis tools to assess the closed loop stability and performance characteristics about many trim conditions. Nonlinear simulations are then used to provide further confidence in the linear analyses and also to uncover dynamic characteristics, e.g. limit cycles, which are not revealed by the linear analysis. This pa...

1.INTRODUCTION Some forty years ago, most opening supports and reinforcements were designed using empirical rules defining ground loads acting on the supporting structures. This approach is still popular and interest in it has been renewed by the use of rock mass classification systems (Barton et al. 1974, Bieniawski, 1974,1976,1989). Correlations between rock mass conditions and the type of su...

Innovation systems can be defined in a variety of ways: they can be national, regional, sectoral, or technological. They all involve the creation, diffusion, and use of knowledge. Systems consist of components, relationships among these, and their characteristics or attributes. The focus of this paper is on the analytical and methodological issues arising from various system concepts. There are...

Previous multifractal spectrum theories can only reflect that an object is multifractal and few explicit expressions of f(α) can be obtained for the practical application of nonlinearity measure. In this paper, an analytical model for multifractal systems is developed by combining and improving the Jake model, Tyler fractal model and Gompertz curve, which allows one to obtain explicit expressio...

Product form queueing networks (PFQN) and generalized stochastic Petri nets (GSPN) have emerged as the principal performance modelling tools for flexible manufacturing systems (FMS). In this paper, we present integrated PFQN-GSPN models, which combine the computational efficiency of PFQN and representational power of GSPN by employing the principle of flow-equivalence. We show that FMS that inc...

We determined the effect of hemolysis, lipemia, and bilirubinemia on clinical-chemical analytical results under standardized conditions, for serum specimens prepared by us. Our purpose was to assess results obtained with 22 commonly available analytical systems. The quantitative rating scheme described is derived from the observed interference(s) divided by the number of analytical methods eval...

Despite widespread use of reputation mechanisms in P2P systems, little has been done in the area of analytical evaluation of these mechanisms. Current approaches for evaluation involve simulation and experimentation. These approaches provide evaluation of the mechanism in a few settings in which the experiment is designed; however, it is difficult to use these simulations for direct comparison ...

Introduction. The development of composite materials is considered with account for the shifts paradigms based on basic models continuous self-developing environment towards structured using ideas and methods system approach synergetics. can: reduce or even eliminate uncertainty inherent to problem be solved; reconstruct it in meeting objectives study; identify objects, properties, relationship...