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Observations and implications of natural laminar flow on practical airplane surfaces
The results of natural laminar flow (NLF) experiments conducted by NASA to determine if modern aircraft structures can benefit from NLF as do sailplanes are presented. Seven aircraft, ranging from aExpand
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Carbon pools in a boreal mixedwood logging chronosequence
Mixedwood forests are an ecologically and economically important forest type in central Canada, but the ecology of these forests is not as well studied as that of single-species dominated stands inExpand
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Small Aircraft Transportation System Concept and Technologies
This paper summarizes both the vision and the early public-private collaborative research for the Small Aircraft Transportation System (SATS). The paper outlines an operational definition of SATS,Expand
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Wind-Tunnel Investigations of Wings with Serrated Sharp Trailing Edges
Exploratory wind-tunnel force measurements are presented for two wing geometries with small-scale planar and nonplanar serrated trailing-edge devices (chord-Reynolds numbers ranged from 1.0–3.7 ×Expand
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(Re)inventing Government-Industry R&D Collaboration
This paper describes the lessons learned in developing & operating a large-scale strategic alliance whose organization & coordination is U.S. Government-led using new means for R&D collaboration.Expand
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Disturbance legacies and climate jointly drive tree growth and mortality in an intensively studied boreal forest.
Most North American forests are at some stage of post-disturbance regrowth, subject to a changing climate, and exhibit growth and mortality patterns that may not be closely coupled to annualExpand
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In the minds of OSCE examiners: uncovering hidden assumptions
Abstract The Objective Structured Clinical Exam (OSCE) is a widely used method of assessment in medical education. Rater cognition has become an important area of inquiry in the medical educationExpand
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Transformations in Air Transportation Systems For the 21st Century
Globally, our transportation systems face increasingly discomforting realities: certain of the legacy air and ground infrastructures of the 20 century will not satisfy our 21 century mobility needs.Expand
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Natural laminar flow experiments on modern airplane surfaces
Flight and wind-tunnel natural laminar flow experiments have been conducted on various lifting and nonlifting surfaces of several airplanes at unit Reynolds numbers between 0.63 x 10 to the 6thExpand
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Development of Complexity Science and Technology Tools for NextGen Airspace Research and Applications
One of the objectives of this research was to deliver a “toolbox” of algorithms, agent-based structures, and method descriptions for introducing trajectory agency as a methodology for simulating andExpand
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