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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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The Scintillation Prediction Observations Research Task (SPORT) Mission
No abstract available
The Scintillation Prediction Observations Research Task (SPORT): A Pathfinder Mission
No abstract available
The Scintillation Prediction Observations Research Task (SPORT)
No abstract available
NASA's SPoRT Center: Progress in Extending Terrestrial Weather R2O/O2R to Space Weather
No abstract available
An Effective Earned Value Management System (EVMS) is a Team Sport
We present a novel framework to assess 27 earned value management system (EVMS) environment factors and investigate their impact on project performance. A study of the EVMS literature, a survey of practitioners, and focus group meetings with 36 EVMS industry and government experts, supported the development of the framework. Focus groups involving 80 practitioners refined and tested it. We analyzed performance data from 35 completed projects/programs representing over US$21.8 billion in total cost; a project demonstrating a positive environment could save up to 25% in cost versus baseline. Practitioners can develop an effective EVMS environment by following the provided guidance.
Omar Ishak: Bioengineer by day, sports car tinkerer by night
Omar Ishak was 13 when he got his first car — or rather, the pieces of his first car. He had helped in his dad’s auto shop in the summers from age 10 to 12, but the vehicle that his dad presented, an Acura Integra, was a challenging first car. Missing most of one side and without a working engine, it seemed to Omar as if it were better off as scrap metal. "If you can piece together all the parts," Omar remembers his dad saying, "you can have it." Omar, now a technical project manager in Weapons Production (ALDWP) with the Transition to Operations/Readiness (PPI-3) group, at first felt overwhelmed at the enormity of what needed to be finished. As a child, he’d played with Legos and liked to tinker and take broken things apart. Then he’d become fascinated with building smaller-scaled model cars and, by the time his dad owned that shop, the fascination had manifested into real cars.
Statistical Properties of Rainfall in Tasmania (SPORT) Field Campaign Report
The objective of this project is to complement the U.S. Department of Energy Atmospheric Radiation Measurement (ARM) User Facility second ARM Mobile Facility (AMF2) deployment at kennaook-Cape Grim (CAPE-k) with a micro-rain radar (MRR-PRO) mounted on top of one of the ARM containers. This was done to locate the MRR-PRO close to the ARM cloud radars (Ka-band ARM Zenith Radar [KAZR] and Marine W-band ARM Cloud Radar [MWACR]). This will allow for a continuous calibration check of the ARM cloud radars against the MRR-PRO and Parsivel-2 disdrometers. Scientifically, it will add one radar frequency to the analysis of vertical profiles of cloud and precipitation properties (K-band).
Problems of hypoxia in sports medicine
Oxygen consumption and working capacity of athletes
Some methods of transmission analysis of cardiological information in sports
Transmission and analysis of cardiological data on athletes
Organization of cardiological service in sports medicine
Cardiological medical services for Soviet athletes
Aviation energy and the future of the recreational use of sport and general aviation aircraft
The activities of the Experimental Aviation Association (EAA) are summarized.
Aerodynamics of sports balls
Research data on the aerodynamic behavior of baseballs and cricket and golf balls are summarized. Cricket balls and baseballs are roughly the same size and mass but have different stitch patterns. Both are thrown to follow paths that avoid a batter's swing, paths that can curve if aerodynamic forces on the balls' surfaces are asymmetric. Smoke tracer wind tunnel tests and pressure taps have revealed that the unbalanced side forces are induced by tripping the boundary layer on the seam side and producing turbulence. More particularly, the greater pressures are perpendicular to the seam plane and only appear when the balls travel at velocities high enough so that the roughness length matches the seam heigh. The side forces, once tripped, will increase with spin velocity up to a cut-off point. The enhanced lift coefficient is produced by the Magnus effect. The more complex stitching on a baseball permits greater variations in the flight path curve and, in the case of a knuckleball, the unsteady flow effects. For golf balls, the dimples trip the boundary layer and the high spin rate produces a lift coefficient maximum of 0.5, compared to a baseball's maximum of 0.3. Thus, a golf ball travels far enough for gravitational forces to become important.
Heinkel He 64 C sport airplane (German) : a two-seat low-wing cantilever monoplane
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