This paper presents an effective methodology for the simplified representation of the kinematics and the horizontal flight control of Unmanned Aerial Vehicles (UAVs). A real UAV has been used as a model in this project. The flight behavior of the UAV has been modeled in terms of simple analytic relationships, which proved very helpful in representing UAV’s actual horizontal motion. A fuzzy cont...

We present first experimental results of the extension of X-ray Magnetic Circular Dichroism (X-MCD) to Small Angle X-ray Scattering (SAXS). The purpose of this study is to determine size distributions and correlations lengths in the nanometer range of magnetic precipitates in granular systems. Magnetic scattering curves obtained with a GdFe system at the Gd La edge are compared with reference m...

A metaheuristic approach based on Variable Neighborhood Search to tackle the enroute aircraft conflict resolution problem is presented. The three maneuvers (velocity, heading angle and altitude level variations) are allowed to be performed. Based on geometric rules, we can determine if a conflict situation occurs between each pair of aircraft under consideration. As three different maneuvers co...

This study investigated the role of heading recency interacting with heading frequency in determining neuropsychological deficits associated with heading the ball during soccer play. Sixty-four high-ability male soccer players ages 16 to 34 completed the California Verbal Learning Test (CVLT), the Trailmaking Test, the Paced Auditory Serial Addition Test (PASAT), the Facial Recognition Test, th...

Due to the large magnetic rigidity of the SIS100 beam, the maximum achievable septum angle and the distance of the deflected beam to the edge of the circulating beam is rather small (3 mrad and 11mm). On the other hand, the extracted beam has to bypass the next quadrupole magnet with an angle of 3 1/3 deg. In fact, this large total deflection angle can be realized with three magnetic septa. Sin...

A set of flight tests designed to evaluate the relative utility of candidate displays with advanced symbology for general aviation terminal area instrument flight rules operations are discussed. The symbology was previously evaluated as part of the NASA Langley Research Center's Terminal Configured Vehicle Program for use in commercial airlines. The advanced symbology included vehicle track ang...

Requirments for current and future Unmanned Air Vehicles with longer ight endurances have led to a need for an autonomous soaring capability. This paper investigates aircraft ight path guidance for search and localization of Regions of Interest, consisting of atmospheric phenomena. The problem is posed as an o ine agent learning problem, of localizing atmospheric thermal locations and then guid...

Motivated by applications in which a nonholonomic robotic vehicle should sequentially hit a series of waypoints in the presence of stochastic drift, we formulate a new version of the Dubins vehicle traveling salesperson problem. In our approach, we first compute the minimum expected time feedback control to hit one waypoint based on the Hamilton-Jacobi-Bellman equation. Next, minimum expected t...

Northern elephant seals, Mirounga angustirostris, travel between colonies along the west coast of North America and foraging areas in the North Pacific. They also have the ability to return to their home colony after being experimentally translocated. However, the mechanisms of this navigation are not known. Visual information could serve an important role in navigation, either primary or suppl...

An online estimation algorithm of landing footprints based on the drag acceleration-energy profile is proposed for an entry hypersonic vehicle. Firstly, Evolved Acceleration Guidance Logic Entry (EAGLE), profiles are designed. To track obtained by interpolation, a acceleration tracking law Secondly, constraint model no-fly zone, flying around strategies different conditions, and reachable area ...