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Health-Enabled Smart Sensor Fusion Technology
Posted in Physical Sciences, Homepage on Monday, January 02 2012
A process was designed to fuse data from multiple sensors in order to make a more accurate estimation of the environment and overall health in an intelligent rocket test facility (IRTF), to provide reliable, high-confidence measurements for a variety of propulsion test articles.
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Sam Ortega, Program Manager, NASA Centennial Challenges, Marshall Space Flight Center, Huntsville, AL
Posted in Homepage on Sunday, January 01 2012
Sam Ortega, manager of the NASA Centennial Challenges Program, leads progressive aerospace initiatives, encouraging the participation of independent teams, individual inventors, student groups, and private companies. Most recently, the program’s Green Flight Challenge awarded the largest prize in aviation history.NASA Tech Briefs:  What is the Green Flight Challenge? Sam Ortega: The Green Flight Challenge was our biggest challenge ever conducted. The purpose was to really push the innovation levels for green aviation itself. We wanted teams to manufacture or build an aircraft that would have the efficiency of a [Toyota] Prius; that would get 200 passenger miles per gallon of gas or gas equivalent; and would be as fast as a Corvette. It would also have to fly at 100 mph.  Prior airplanes only had the efficiency of 40 passenger miles per gallon, as opposed to the 200 that we were trying to shoot for.
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Ultra-Miniature Lidar Scanner for Launch Range Data Collection
Posted in Physical Sciences, Homepage on Tuesday, January 03 2012

New scanning technology promises at least a 10× performance improvement.

The most critical component in lidar is its laser scanner, which delivers pulsed or CW laser to target with desirable field of view (FOV). Most existing lidars use a rotating or oscillating mirror for scanning, resulting in several drawbacks.
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Multi-Mission Radioisotope Thermoelectric Generator Heat Exchangers for the Mars Science Laboratory Rover
Posted in Mechanics, Homepage on Tuesday, January 03 2012

These heat exchangers can be used in any application in which heat loads must be simultaneously collected and rejected from opposite sides of the same structure.

The addition of the Multi-Mission Radioisotope Thermoelectric Generator (MMRTG) to the Mars Science Laboratory (MSL) Rover requires an advanced thermal control system that is able to both recover and reject the waste heat from the MMRTG as needed in order to maintain the onboard electronics at benign temperatures despite the extreme and widely varying environmental conditions experienced both on the way to Mars and on the Martian surface (See figure).
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Blog Box

US Army Corps of Engineers Deploys Complex Math

Linda Bell

Today, we're pleased to have a guest blog from Lindsey Christensen, Marketing Project Manager at PTC, which delivers Product Lifecycle Management and design software solutions.

Most people don’t think about the complexity behind the electricity that’s ...

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