Space Adminstration Patent applications |
Patent application number | Title | Published |
20090277789 | Wireless Chemical Sensor and Sensing Method for Use Therewith - A wireless chemical sensor includes an electrical conductor and a dielectric material on the conductor. The conductor is electrically unconnected and is shaped for storage of an electric field and a magnetic field. In the presence of a time-varying magnetic field, the conductor resonates to generate harmonic electric and magnetic field responses, each of which has a frequency associated therewith. The dielectric material is selected such that it experiences changes in dielectric attributes thereof in the presence of a chemical-of-interest. Shifts from the sensor's baseline frequency response indicate that the dielectric material has been exposed to the chemical-of-interest. | 11-12-2009 |
20090185942 | Fabrication of advanced thermoelectric materials by hierarchical nanovoid generation - A novel method to prepare an advanced thermoelectric material has hierarchical structures embedded with nanometer-sized voids which are key to enhancement of the thermoelectric performance. Solution-based thin film deposition technique enables preparation of stable film of thermoelectric material and void generator (voigen). A subsequent thermal process creates hierarchical nanovoid structure inside the thermoelectric material. Potential application areas of this advanced thermoelectric material with nanovoid structure are commercial applications (electronics cooling), medical and scientific applications (biological analysis device, medical imaging systems), telecommunications, and defense and military applications (night vision equipments). | 07-23-2009 |