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Harmful Silver



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Globular Clusters



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Fog and Smoke



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Molecular Movies



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Hand-Held Units for Short-Range Wireless Biotelemetry

These units would power surgically implanted sensors. Special-purpose hand-held radio- transceiver units have been proposed as means of short-range radio powering and interrogation of surgically implanted microelectromechanical sensors and actuators. These units are based partly on the same principles as those of the units described in “Printed Multi-Turn Loop Antennas for RF Biotelemetry” (LEW-17879-1), NASA Tech Briefs, Vol. 31, No. 6 (June 2007), page 48. Like the previously reported units, these units would make it unnecessary to have wire connections between the implanted devices and the external equipment used to activate and interrogate them.

Posted in: Briefs, TSP

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Wearable Wireless Telemetry System for Implantable BioMEMS Sensors

Physiological monitoring would entail minimal risk, discomfort, or restriction of mobility. Telemetry systems of a type that have been proposed for the monitoring of physiological functions in humans would include the following subsystems: Surgically implanted or ingested units that would comprise combinations of microelectromechanical systems (MEMS)- based sensors [bioMEMS sensors] and passive radio-frequency (RF) readout circuits that would include miniature loop antennas. Compact radio transceiver units integrated into external garments for wirelessly powering and interrogating the implanted or ingested units.

Posted in: Briefs, TSP

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Redesigned Human Metabolic Simulator

Apparatus simulates atmospheric effects of human respiration. A design has been formulated for a proposed improved version of an apparatus that simulates atmospheric effects of human respiration by introducing controlled amounts of carbon dioxide, water vapor, and heat into the air. Denoted a human metabolic simulator (HMS), the apparatus is used for testing life-support equipment when human test subjects are not available.

Posted in: Briefs

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