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A novel power supply for medical implants has been developed. A wireless near-infrared power transmission recharges a lithium secondary battery in the power supply. A photovoltaic cell array embedded under skin receives near-infrared light through the skin and charges the battery directly powering an implanted device. We have shown that, for a photodiode(More)
A compact, photocouplerlike system is presented for wireless transcutaneous transmission of biological signals. The system consists of an optically powered near-infrared light transmitter, a receiver for the signals from it, and a near-infrared light source with which to irradiate it. The transmitter, which is implanted under the skin, is transcutaneously(More)
Assume that each vertex of a graph G is assigned a constant number q of nonnegative integer weights, and that q pairs of nonnegative integers li and ui, 1 ≤ i ≤ q, are given. One wishes to partition G into connected components by deleting edges from G so that the total i-th weights of all vertices in each component is at least li and at most ui for each(More)
Epitaxial (Fe,Mn)(3)O(4) (FMO) ferromagnetic oxide artificial nanowire (NW) structures were deposited across Pt/Cr bilayer electrodes with a high controllability on their shape and positioning by using atomic force microscope (AFM) lithography with molybdenum (Mo) lift-off in combination with a pulsed laser deposition technique. The oxide wire widths were(More)
We fabricated ferromagnetic oxide (Fe,Mn)(3)O(4) (FMO) nanoconstrained structures using two different steps involving atomic force microscope lithography in combination with a pulsed laser deposition technique. The widths of three FMO nanoconstrained structures were 150, 100, and 50 nm. The I-V characteristic of the 50 nm width FMO nanoconstrained structure(More)
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