Electronics & Computers

Wireless Brain Implant Using a Telemetric Electrode Array System

A 3D intra-cortical electrode array is embedded for signal acquisition, processing, and wireless communication. The ability to monitor the activities of ensembles of single neurons is critically important in understanding the principles of information processing in the brain that underlie perception, cognition, and action. Multiple microelectrode recording using appropriate neuronal implants provides this ability. The Telemetric Electrode Array System (TEAS) project aims at developing and embedding a three-dimensional intra-cortical electrode array with all electronics required for signal acquisition, processing, and wireless communication entirely into the head.

Posted in: Bio-Medical, Electronics & Computers, Electronics, Implants & Prosthetics, Medical, Briefs, TSP, MDB

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Modular Battery Charge Controller

A John H. Glenn Research Center-developed controller features distributed charge control and a masterless communication bus, enhancing its robustness for use in battery energy-storage applications. The modular battery charge controller is required in battery chemistries that need cell-level charge control for safety.

Posted in: Batteries, Electronics & Computers, Energy Storage, Energy, Briefs, GDM

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Room-Temperature-Cured Copolymers for Lithium Battery Gel Electrolytes

Polyimide-PEO copolymers with branched rod-coil molecular structures, that can be cured into film form at room temperature, have been invented for use as gel electrolytes for lithium-ion electric- power cells. These copolymers offer an alternative to previously patented branched rod-coil polyimides, and an advantage in room-temperature functionality.

Posted in: Batteries, Electronics & Computers, Briefs, GDM

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Oxide Fiber Cathode Materials for Rechargeable Lithium Cells

Fibers have been investigated at Johnson Space Center as alternatives to other powders used as lithium-intercalation compounds in cathodes of rechargeable lithium-ion electrochemical cells. The fibers can be pressed and sintered to form a cathode, without need for a binder or a conductive additive. The inter-grain contacts of the fibers are stronger and offer reduced loss of capacity from cycle to cycle.

Posted in: Batteries, Electronics & Computers, Briefs, GDM

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Utilizing Ocean Thermal Energy in a Submarine Robot

A proposed system would exploit the ocean thermal gradient for recharging the batteries in a battery-powered unmanned underwater vehicle (UUV) of a type that has been deployed in large numbers to research global warming. A UUV of this type travels between the ocean surface and depths, measuring temperature and salinity.

Posted in: Batteries, Electronics & Computers, Alternative Fuels, Green Design & Manufacturing, Geothermal Power, Renewable Energy, Energy, Briefs, GDM

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Alternative OTEC Scheme for a Submarine Robot

An alternative system for exploiting the ocean thermal gradient to generate power would be based on the thawing-expansion/freezing-contraction behavior of a wax, or perhaps another suitable phase-change material. The power generated by this system would be used to recharge the batteries in a battery-powered unmanned underwater vehicle.

Posted in: Batteries, Electronics & Computers, Alternative Fuels, Green Design & Manufacturing, Geothermal Power, Renewable Energy, Energy, Briefs, GDM

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Wireless, Handheld Electronic Medical Record Application

Healthcare providers can view, update, and share patient information from a handheld device. PocketChart™, available in numerous medical specialty editions, is a wireless, handheld electronic medical record application that will help physicians increase productivity, reduce transcription costs, and increase revenue through improved code levels. PocketChart enables a PocketPC to synchronize with a desktop computer, allowing healthcare providers to continuously update, view, exchange, and print patient information. It is designed for use at point-of-care in a variety of clinical settings including hospitals, homes, and extended-care facilities.

Posted in: Bio-Medical, Patient Data Management, Electronics & Computers, Electronics, Software, Medical, Briefs, MDB

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