1,918 research outputs found
Adequacy of the passive inflated falling sphere technique
Inflated falling sphere for high altitude sounding at radar sit
Spacelab mission dependent training parametric resource requirements study
Training flows were developed for typical missions, resource relationships analyzed, and scheduling optimization algorithms defined. Parametric analyses were performed to study the effect of potential changes in mission model, mission complexity and training time required on the resource quantities required to support training of payload or mission specialists. Typical results of these analyses are presented both in graphic and tabular form
The NASA-JAXA Global Precipitation Measurement mission – part I: New frontiers in precipitation
The Global Precipitation Measurement (GPM) Core Observatory measuring over a mid-latitude storm. The red, white, magenta, maroon and blue lines indicate the flight path, satellite altitude, GPM Microwave Imager swath, Dual-frequency Precipitation Radar (DPR) Ku-band (KuPR) swath and DPR Ka-band (KaPR) swath, respectively. The rainfall is heaviest where red and lightest where dark blue; 3-dimensional measurements are only available from the DPR segment of the swath. Credit: NASA's Goddard Space Flight Center Scientific Visualization Studio; adapted from original image
The NASA-JAXA Global Precipitation Measurement mission – part II: New frontiers in precipitation science
United States Navy - Canadian forces solid state flight data recorder/crash position locator experiment on the B-720 controlled impact demonstration
The operation of a radio beacon position locator during and after the remotely controlled transport aircraft is discussed. The radio beacon transmission was actuated and was picked up by the Navy P-3A chase aircraft for a short time, after which reception was lost. The pilot reported that he received a signal on both 121.5 MHz and 243 MHz for a period of approximately 5 seconds. Five minutes after the crash a portable direction finding unit located on the roof of the NASA Dryden Flight Research Facility, 4 miles distant from the crash, was unable to pick up the beacon transmission. The fire crews started fighting the fires approximately 90 seconds after the time of impact. Navy personnel access to the crash site was allowed on the morning of December 2, 1984. Radio beacon locator was found resting top side up, 15 feet forward and 13 feet perpendicular from the tray location the starboard side of the aircraft. An immediate inspection indicated the airfoil suffered moderate fire damage with paint peeling but not intumescing. The visual marker strobe lamp housings were intact but extensively burned such that it was impossible to see if the lamps had survived. The airfoil suffered minor structural damage, with assorted dents, etc. The extended plunger on the ARU-21 release unit indicated that the pyrotechnic deployment system operated. The radio beacon base (tray) suffered some heat and fire damage, and was charred and blackened by smoke. The frangible switch in the nose survived and the switch in the belly was recovered and found to have actuated. It is assumed that this switch fired the ARU-21 squib. There were no other release switches installed in the normally open system in the aircraft
Atmospheric measurements over kwajalein using falling spheres
Atmosphere measurements using falling spheres tracked by rada
Utility of On-Farm Research Reports
The Ohio State University Agronomic Crops Team has published peer-reviewed on-farm research reports since 1997, with 10 years as an on-line publication. With 367 reports published to date, the Team reviewed the value and use of the material. Seven categories account for 74% of the reports, with fertility management the largest group. While some reports get widespread attention, this is often due to state specialist recognition. More needs to be done to promote the research results and the potential of the website to growers, industry, and other university users
Developing an On-Farm Research Network: Published Work for Peers and Producers
The Ohio State University Extension Agronomic Crops Team has a committee providing leadership to coordinate an on-farm research network. The network has been developed to provide needs assessment, peer review, and reporting of on-farm research. The research protocols originate from locally driven needs and stakeholder focus groups. The network includes county-based Extension professionals working with cooperating farms, county-owned farms operated by Extension professionals, and university-owned research facilities. The network uses team members for their strengths and specializations to fortify the research effort. The research results are online and searchable by Extension professionals and farmers. The team website is: http://agcrops.osu.ed
Using airborne LiDAR Survey to explore historic-era archaeological landscapes of Montserrat in the eastern Caribbean
This article describes what appears to be the first archaeological application of airborne LiDAR survey to historic-era landscapes in the Caribbean archipelago, on the island of Montserrat. LiDAR is proving invaluable in extending the reach of traditional pedestrian survey into less favorable areas, such as those covered by dense neotropical forest and by ashfall from the past two decades of active eruptions by the Soufrière Hills volcano, and to sites in localities that are inaccessible on account of volcanic dangers. Emphasis is placed on two aspects of the research: first, the importance of ongoing, real-time interaction between the LiDAR analyst and the archaeological team in the field; and second, the advantages of exploiting the full potential of the three-dimensional LiDAR point cloud data for purposes of the visualization of archaeological sites and features
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