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Carbon-Fiber Brush Heat Exchangers

High thermal conductance between uneven surfaces could be achieved with low clamping force. Velvetlike and brushlike pads of carbon fibers have been proposed for use as mechanically compliant, highly thermally conductive interfaces for transferring heat. A pad of this type would be formed by attaching short carbon fibers to either or both of two objects that one desires to place in thermal contact with each other. The purpose of using a thermal-contact pad of this or any other type is to reduce the thermal resistance of an interface between a heat source (e.g., a module that contains electronic circuitry) and a heat sink (e.g., a common finned heat sink).

Posted in: Mechanical Components, Briefs

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Kim Ballard, Computer Engineer, Electrical Design Branch

NASA's Kennedy Space Center, FL Engineers at Kennedy Space Center (KSC) developed the Laser Scaling and Measurement Device for Photographic Images – a camera attachment that uses laser technology – to assist scientists in determining the exact scale of any damages to the Space Shuttle’s external tank when viewing photographs of the spacecraft on its launch pad. This NASA-developed camera accessory also is being used to "shoot" photos that can precisely measure details of crime scenes. When a picture is taken with the instrument, the image is loaded onto a computer and items are then viewable and measurable on the computer screen. Kim Ballard designed the Microsoft-Word compatible software for the device.

Posted in: Who's Who

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Thermal and Compressed-Air Storage System Provides Alternative to UPS Batteries

Three mature energy-storage technologies are combined in a new system to replace lead-acid batteries. Virtually all businesses and industries are vulnerable to electric power disturbances such as outages, sags, swells, and harmonics. These problems are less of an issue for data centers, protected behind their walls of Uninterruptible Power Supply (UPS) systems. But the typical battery-backed UPS is too fragile for use in less protected environments. UPS batteries must be maintained in a narrow temperature range and fail prematurely when subjected to a steady diet of step loads and motor drives. About six years ago, flywheel-based UPS products became commercially available. These devices store energy as rotational inertia, and are rugged enough to survive on the factory floor. However, flywheels have relatively short ride-through energy and are best-suited for use in locations with backup generators.

Posted in: Mechanical Components, Briefs

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Dr. Marco Giardino, Chief Technologist, Engineering & Science Directorate

NASA's Stennis Space Center, Mississippi Dr. Marco GiardinoUsing high-tech remote sensing methods, a collection of artifacts has been unearthed at Stennis Space Center near Bay St. Louis, MS. The objects uncovered during archeological excavations conducted over the past 11 years were found at the site of the 19th century Hancock County seat on the Pearl River, which is now part of the space center. Dr. Giardino was one of the archeologists involved in the dig.

Posted in: Who's Who

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Hanwant Singh, Atmospheric Scientist, NASA's Ames Research Center, Moffett Field, CA

Hanwant SinghThe Intercontinental Chemical Transport Experiment (INTEX-B) is the second phase of a two-part, multinational monitoring project designed to track pollution making its way into North America and is sponsored by the Tropospheric Chemistry Program at NASA headquarters. Using information gathered from the ground, aircraft, and satellites, NASA and project partners the National Science Foundation and the U.S. Department of Energy plan to study the chemistry and properties of carbon monoxide (CO) and aerosol emissions originating in Asia and Mexico City. Atmospheric chemist Hanwant Singh is INTEX-B's lead mission scientist.

Posted in: Who's Who

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Dr. Jeff Jones, Lead for Exploration Medical Operations

NASA's Johnson Space Center, Houston, TX Dr. Jeff JonesAt remote sites, the International Space Station, or missions to the Moon or Mars, illness and injury can be extremely serious. Far from hospitals, scientists and astronauts may find themselves dealing with medical situations for which they have no training. Telemedicine enables doctors and technicians to talk personnel through complex procedures and provide the care needed, via radio or satellite. Dr. Jeff Jones leads NASA’s telemedicine program, developed for a number of remote NASA projects, to administer medical care over long distances.

Posted in: Who's Who

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Dr. Michael Bicay, Science Director, NASA Ames Research Center, Moffett Field, CA

Dr. Michael BicayHaving served at both JPL as a member of the Project Office science staff for the Spitzer Space Telescope and the Spitzer Science Center at Caltech where he helped establish the Office of Education and Public Outreach, since May 2005, Dr. Bicay has served as Ames’ acting deputy director for science. Dr. Bicay is in charge of Ames’ research, development, of products, and serving the space community in astrobiology and related areas.

Posted in: Who's Who

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