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Briefs: Information Technology

Modified Taguchi techniques of robust design optimization are used in an innovative method of training artificial neural networks — for example the network shown in the figure. As...

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Briefs: Test & Measurement

A method of automated diagnosis of helicopter gearboxes involves processing of selected features of digitized outputs of vibration sensors via structure-based connectionist...

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Briefs: Software
Virtual-Reality Platform-Independent Software for Access to Mars Data

The Virtual Reality Mars Atlas User Interface (VR-MAUI) provides an atlaslike interface for access to Mars data. This access is provided via the World Wide Web, using JAVA. Within VR-MAUI, images are organized as maps. These maps provide a natural coordinate system, which...

Briefs: Electronics & Computers

As the highest resolution seismic system available, the automated seafloor classification system (ASCS) can remotely and accurately map sediment properties for many seafloor applications. The...

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Briefs: Electronics & Computers

Compact analog/digital electronic data processors of a novel type are based on the concept of the optimization cellular neural network (OCNN) and are implemented in...

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Briefs: Physical Sciences
A Multicolor Imaging Pyrometer

Physical Sciences Inc. (PSI) designed, constructed, and delivered a prototype passive imaging pyrometer capable of accurately measuring and controlling the temperature distribution across a specified surface. The device was originally designed, under a NASA SBIR contract (solicitation year 1985) monitored by Jet...

Briefs: Information Technology
WAN DBMS Search Engine for Scientific Data Formats

A software interface between scientific data formats (SDF's) and wide-area data-base search-engine software has been developed to provide seamless access to data used in support of NASA projects. Most SDF's are known or understood by only a select audience. These SDF's are also only searchable...

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