Traditional recursive least squares (RLS) adaptive filtering is widely used to estimate the impulse responses (IR) of an unknown system. Nevertheless, RLS estimator shows poor performance when tracking rapidly time-varying systems. In this paper, we propose a multi-layered (m-RLS) address concern. The m-RLS composed multiple estimators, each which employed and eliminate misadjustment previous l...

The goal of this paper is to discuss how adaptive search systems should be evaluated. We argue that a state-of-the art evaluation of adaptive search systems should follow a “layered evaluation” approach. To support and explain this argument we describe how layered approach was applied to evaluation of adaptive search component of Knowledge Sea II system that is powered by a social navigation su...

System designers find it difficult to obtain insight into the potential performance, and performance problems, of enterprise applications based on component technologies like Enterprise Java Beans (EJBs) or .NET. One problem is the presence of layered resources, which have complicated effects on bottlenecks. Layered queueing network (LQN) performance models are able to capture these effects, an...

In the real applications, the model predictive control MPC technology is separated into two layers, that is, a layer of conventional dynamic controller, based on which is an added layer of steady-state target calculation. In the literature, conditions for offset-free linear model predictive control are given for combined estimator for both the artificial disturbance and system state , steady-st...

This article presents the results of research on multi-layered heterostructures by a modified calculation technique of multiple X-ray diffraction. The Al x In1-x Sb heterostructure and a Zn(Mn)Se/GaAs(001) multi-layered system were used as models to specify conditions for cases of coincidental coplanar three-beam or coincidental noncoplanar four-beam X-ray diffraction. These conditions provide ...

designing and scheduling of drip irrigation systems are often done without enough information about water distribution in the soil. due to tillage operations and crop production practices, agricultural soils can be considered as two layered soils with different bulk densities. the top soil layer has a lighter texture than the sub soil layer. in this research, the development of the wetting fron...

In this article, corrosion behavior of the single-layered TiN, single-layered CrN and multi-layered TiN/CrN coatings have been fabricated on 420C stainless steel (SS) by Cathodic Arc Evaporation (CAE) method in Ringer's solution was studied. The electrochemical appraisal was done by the Potentiodynamic Polarization (PDP) and Electrochemical Impedance Spectroscopy (EIS) tests. Results of PDP tes...