In this paper, kinetic and kinematic modeling of a 4 wheel steering vehicle is done and its movement is controlled in an optimal way using Linear Quadratic Regulator (LQR). The results are compared with the same control of two-wheel steering case and the advantages are analyzed. In 4 wheel steering vehicles which are nowadays more applicable the number of controlling actuators are more than the...

Differential evolution has started to attract a lot of attention as a powerful search method and has been successfully applied to a variety of applications including pattern recognition. One of the most important tasks in many pattern recognition systems is to find an informative subset of features that can effectively represent the underlying problem. Specifically, a large number of features c...

This paper presents, the development of an autonomous mobile robot with a four-wheel drive and differential locomotion. The was developed in Machines Industrial Equipment Department from Engineering Faculty Sibiu. main purpose developing this type platform ability to transport different types cargo either industrial spaces or on rough terrain. Another important objective that could be driven co...

The performance of traditional beamformers tends to degrade due to inaccurate estimation of covariance matrix and imprecise knowledge of array steering vector. The inaccurate estimation of covariance matrix can be attributed to limited data samples and the presence of desired signal in the training data. The mismatch between the actual and presumed steering vectors can be due to the error in th...

Axonal steering reactions depend on the transformation of environmental information into internal, directed structures, which is achieved by differential modulation of the growth cone cytoskeleton; key elements are the microtubules, which are regulated in their dynamics by microtubule-associated proteins (MAPs). We investigated a potential role of the MAP adenomatous polyposis coli (APC) for gr...

The study of rotary steering drilling technology is currently one of the hot topics in the drilling engineering field. It requires accurate well trajectory control instructions when rotary steerable tools are applied to achieve the well trajectory control goal. A drilling trajectory prediction model will benefit this progress. According to the continuous beam theory, a mechanical model of push-...

We present a method for the generation of real-time navigation of dynamic autonomous agents in game environments. The method is based on the use of dynamic systems theory which allows the development of sets of differential equations that exhibit distinct behaviors. The differential equations are a carefully designed set of attractor and repeller fields. Coupled together with a "behavioral" sel...