Let a graph G = (V;E) be given. In the path center problem we want to find a path P in G such that the maximum weighted distance of P to every vertex in V is minimized. In this paper a genetic algorithm and ahybrid of genetic and ant colony algorithms are presented for the path center problem. Some test problems are examined to compare the algorithms. The results show that for almost all exampl...

In this paper, a modified auto zeroed integrator is used to design and simulate a low-voltage high-Q switched capacitor pseudo 2-path filter.  The filter is a sixth–order Chebyshev band-pass filter operating at sampling frequency of 1MHz and center frequency of 250 kHz with a quality factor of 50. The proposed filter has both low-voltage and high speed properties of the auto zeroed integrators ...

The Median-Path problem consists of locating a path on a network, minimizing a function of two parameters: accessibility to the path and total cost of the path. Applications of this problem can be found in transportation planning, water resource management and fluid transportation. The Central-Path problem is defined similarly. In this paper, we give a construction on a graph G which produces a...

The formation of movement in a colony of animals in nature is as important as the movement itself. In transportation world or multi-agents system (swarm), like in military world, the formation of aircrafts or ships is also vital. This paper addresses the tracking situation of multi agents system that models swarming behavior moving along a desired path. This paper tries to model the movement of...

The center of mass space is a convenient space for planning motions that minimize reaction forces at the manipulator’s base or optimize the stability of a mechanism. A unique problem associated with path planning in the center of mass space is the potential existence of multiple center of mass images for a single Cartesian obstacle, since a single center of mass location can correspond to multi...

Research on biped locomotion has focused on sagittal plane walking in which the stepping path is a straight line. Because a walking path is often curved in a three dimensional environment, a 3D locomotion subsystem is required to provide general walking animation. In building a 3D locomotion subsystem, we tried to utilize pre-existing straight path (2D) systems. The movement of the center of th...

This paper presents a smooth path planning method considering physical limits for twowheeled mobile robots (TMRs). A Bezier curve is utilized to make an S-curve path. A convolution operator is used to generate the center velocity trajectory to travel the distance of the planned path while considering the physical limits. The trajectory gained through convolution does not consider the direction ...