This paper reports the results of an investigation on magnetic materials of interest in the transportation field. It includes information about the present state of magnetic materials and examines the recently discovered phenomenon referred to as colossal magnetoresistance (CMR). Magnetic materials are used directly as magnets in various applications in transportation vehicles, barrier gates, smart cards, and road sensors. For CMR materials to replace the materials referred to as giant magnetoresistance (GMR), it will be necessary to identify a CMR material that undergoes transition into a metallic state with a smaller external magnetic field at room temperature. Calculations were performed and experiments were done that allow the prediction of where the magnetic transition should occur. The author's studies indicate that a compound consisting of lanthanum, manganese, oxygen, and strontium (La-Mn-O-Sr) should be a prime candidate for potential applications in transportation.
In this paper, an analytical method is proposed for the modeling of electromagnetic energy harvesters (EMEH) with planar arrays of permanent magnets. ...
In this research project, an Electromagnetic Energy Harvesting System (EMEHS) is developed for harvesting the kinetic energy of ambient and traffic-in...
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