Louisiana Tech University has recently developed a curriculum (NASA-Threads) that integrates engineering, mathematics, and physics. The curriculum, which targets junior and senior high school students, uses hands-on projects that develop student ability to solve realistic multiple-step problems and bring excitement into the classroom. NASA-Threads integrates NASA applications, fundamentals, tec...

Since its founding, NASA has been dedicated to the advancement of aeronautics and space science. The NASA scientific and technical information (STI) program plays a key part in helping NASA maintain this important role. The NASA STI program operates under the auspices of the Agency Chief Information Officer. It collects, organizes, provides for archiving, and disseminates NASA's STI. The NASA S...

This paper describes preconditioned conjugate gradient methods for solving sparse symmetric and positive definite systems of linear equations. Necessary and sufficient conditions are given for when these preconditioners can be used and an analysis of their effectiveness is given. Efficient computer implementations of these methods are discussed and results on the CYBER 203 and the Finite Elemen...

NASA’s Expansive Reach Each year, NASA produces Spin­ off, a report outlining its con­ tributions to the US (see www. sti.nasa.gov/tto). Many derivative technologies in medicine and per­ sonal comfort have emerged from NASA missions, positively affect­ ing our lives. However, beneficial technologies have also emerged in computing and information processing over the more than 60 years since the ...

The NASA-funded opticai communications program being conducted at JPL is described, The spacecraft transceiver terminal developments, a test infrastructure for assessing the performance of future space terminals, an atmospheric visibility monitoring program, some recent systems-level demonstrations, and a communications technology roadmap for planetary missions over the next 25 years are presen...

A method has been developed which automatically extracts river and river bank locations from arbitrarily sourced high resolution ("lm) visual spectrum imagery without recourse to multi-spectral or even color information. This method relies on quantifying the difference in image texture between the relatively smooth surface of the river water and the rougher surface of the vegetated land or buil...

The purposes of this article are to determine: (a) employer attitudes toward hiring exoffenders, and (b) how these attitudes are affected by the level of training the ex-offender received while incarcerated, government incentives to hire, type of offense committed, and the relationship of the crime to the job to be filled. Eighty-three Houston and Dallas employers were surveyed about their atti...

S? An impact test was conducted on a 1119 pound 2 foot diameter sphere 05 <f model at the Holloman Sled Track in Alamogordo, New Mexico, This test is part of a study to determine the feasibility of containing the fission products of a mobile reactor in the event of an impact,, The model simulated the reactor core, energy absorbing gamma shielding, neutron shielding and the containment vessel. I...

ion and flexibility while minimizing the resources necessary to support the architecture.15. SUBJECT TERMSRadio; Communication; Software; Architecture; Standards 16. SECURITY CLASSIFICATION OF:17. LIMITATION OFABSTRACT UU18. NUMBEROFPAGES1419a. NAME OF RESPONSIBLE PERSONSTI Help Desk (email:[email protected])a. REPORTUb. ABSTRACTUc. TH...