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This paper presents an assessment of the impacts of Demand Response (DR) programs and distributed generation (DG) in the chargeability of the Colombian power system. Initially, several indexes are defined to account for the impact of single contingencies in the chargeability of the Colombian power system under different operative scenarios. Then, the most critical operative scenario in terms of number...
There is increasing interest in the use of Autonomous Underwater Vehicles (AUVs) to substantially improve the means available for ocean exploration and exploitation. A key element in the operation of certain classes of AUVs is the availability of good underwater positioning systems to localize one or more vehicles simultaneously based on information received on-board a support ship or a set of autonomous...
Parameters of cache performance may improve or worsen the performance of the all processing and of cache memory itself. Through simulation techniques using the SimpleScalar tool, which simulates the architectural characteristics, we simulate the ARM platform and we performed simulations changing the capacity and replacement methods of cache levels L1 and L2 separately. We observe the cache performance...
Worldwide, there has been increasing interest in the use of Autonomous Underwater Vehicles (AUVs) to drastically change the means available for ocean exploration and exploitation. Representative missions include marine habitat mapping, pipeline inspection, and archaeological surveying. Central to the operation of some classes of AUVs is the availability of good underwater positioning systems to localize...
This work purposes an innovative methodology for implementing and executing patterns of natural motion from a healthy human arm in an upper limb prostheses using parallel actuators. Firstly, it was developed a calibration control capable of simultaneously gathering on-line the movement range of all actuators of prosthesis. Then, ten calibration tests were performed in which movement ranges were characterized...
This paper presents an educational platform for digital system practices with a conventional PCI bus interface, based on reconfigurable hardware especially useful for the designing of hardware accelerators and systems with a PCI bus interface. The aim of the platform is to provide students with a single tool to develop rapid prototypes that covers all aspects involved in the study of digital systems...
The state of the art and already on market electromechanical prosthesis are mostly implemented by using the sequential movement of actuators, which give extra load to each other during movement. As a solution to this problem, some of the newest prosthesis (mostly in development) use simultaneous movement of actuators instead, which increase their overall load capacity and their DOF. However, backbones...
This paper proposes a novel method for sensing obstacles and hand grasping activities in electromechanical arm prosthesis. The described method is based on indirectly sensing `Stall' condition in prosthesis actuators through hall-effect sensors already embedded on its dc motors, thus not requiring external sensors. To test the proposed methodology, an electromechanical arm prosthesis of 3 degrees...
We propose to use an automatic method for detecting and measuring the Central Spot Size (CSS) of a particle image to determine particle defocus position by using a genetic algorithm (GA) optimization process.
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