Opportunities exist to apply nonlinear filtering to model-based prognostics in order to provide a systematic way of dealing with the propagation of system damage at some future time, whenever imprecise diagnostic information is obtained. Central to the prognostics problem is the ability to properly capture and manage uncertainties when predicting remaining useful life of a particular component ...

This article adds to existing work on the drivers of early internationalization by exploring how born globals’ proactiveness evolves during their pre-foundation period and influences timing post-foundation. We perform a comparative, qualitative field study globals non-born based 22 university spin-out companies. The findings reveal that pre-foundation, which emerged as an evolutionary nonlinear...

Abstract. The Material Point Method (MPM) has been very successful in providing solutions to many challenging problems involving large deformations. The nonlinear nature of MPM makes it necessary to use a full nonlinear stability analysis to determine a stable timestep. The stability analysis of Spigler and Vianello is adapted to MPM and used to derive a stable timestep bound for a model proble...

In this paper the current harmonic can be compensated by using the Shunt Active Power Filter, Passive Power Filter and the combination of both. The system has the function of voltage stability, and harmonic suppression. The reference current can be calculated by dq transformation. An improved generalized integrator control was proposed to improve the performance of APF. The simulation results o...

A full first principle model of counter current heat exchangers is used as the internal model of a classical PFC controller. With the use of a specific physical “convexity property” of this type of process, a full straightforward first-principle model is used as the internal model of the controller. The whole strategy is implemented in a classical industrial PLC, which controls this nonlinear p...

In this paper we present a simple analytical model to evaluate the impact of measurement errors on the closedloop power control for code division multiple access (CDMA) systems. By introducing a new performance measurement, the probability of false command in power control, PFC , a closed form formula for calculating PFC with consideration of measurement errors is presented. Furthermore, we dri...

In this study an effective method for nonlinear constrained optimization of shallow foundation is presented. A newly developed heuristic global optimization algorithm called Gravitational Search Algorithm (GSA) is introduced and applied for the optimization of foundation. The algorithm is classified as random search algorithm and does not require initial values and uses a random search instead ...

Traditionally the foundation in a dam is modeled by a sub-structuring approach for the purpose of seismic performance analysis. The main disadvantage of sub-structuring approach is that it cannot be used for solving nonlinear dynamic problems. Therefore, in that case seismic response analysis must be carried out in time domain. Among the different earthquake input mechanisms the deconvolved ear...

The paper considers a rectangular orthotropic insulated slab on an elastic foundation, modeled by homogeneous isotropic layer rigidly connected to non-deformable foundation. Elastic and nonlinear calculations of this plate opening. calculation flexible foundation in formulation is carried out iteratively the method B. N. Zhemochkin. To determine coefficients canonical equations free terms, mixe...