Results 151 to 160 of about 8,757,591 (356)
A teleoperated unmanned rotorcraft flight test technique [PDF]
NASA and the U.S. Army are jointly developing a teleoperated unmanned rotorcraft research platform at the National Aeronautics and Space Administration (NASA) Langley Research Center.
Hodges, W. Todd +2 more
core +1 more source
Gecko‐Inspired Adhesive Grasping from Convex to Flat Surfaces with Contact Sensing
Advanced Intelligent Systems, EarlyView.A gecko‐inspired adhesive gripper with a pair of soft hierarchical bio‐toes and a bionic rolling module is designed for adaptive grasping from convex to flat surfaces. Integrated adhesive contact sensing enables the smart grabbing of complex items. The gripper exhibits adaptability, load‐bearing capacity, and potential for applications in industries ...
Liuwei Wang +6 more
wiley +1 more source
Investigation of Deuterium Loaded Materials Subject to X-Ray Exposure [PDF]
arXiv, 2017 Results are presented from an exploratory study involving x-ray irradiation of select deuterated materials. Titanium deuteride (TiD2) plus deuterated polyethylene ([-CD2-]n; DPE), DPE alone, and for control, hydrogen-based polyethylene ([-CH2-]n; HPE) samples and nondeuterated titanium samples were exposed to x-ray irradiation.
arxiv
The OAST space power program [PDF]
The NASA Office of Aeronautics and Space Technology (OAST) space power program was established to provide the technology base to meet power system requirements for future space missions, including the Space Station, earth orbiting spacecraft, lunar and ...
Bennett, Gary L.
core +1 more source
Requirements for multidisciplinary design of aerospace vehicles on high performance computers [PDF]
, 1990 The design of aerospace vehicles is becoming increasingly complex as the various contributing disciplines and physical components become more tightly coupled.
A Jameson +6 more
core +2 more sources
Advanced Intelligent Systems, EarlyView.This work introduces a rigid‐flexible coupling building block by combining rigid parallel structures with soft origami structures. Through theoretical and experimental analysis, geometric parameters are optimized to achieve kinematic synergy between the two structures.
Ji Wang +8 more
wiley +1 more source
Risk Management and Healthcare Policy, 2020 Zilong Wang,1,* Shah Zaman,1,* Samma Faiz Rasool,2,* Qamar uz Zaman,1,* Asad Amin3,* 1College of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, People’s Republic of China; 2School of Innovation and ...
Wang Z +4 more
doaj
Enhancing space transportation: The NASA program to develop electric propulsion [PDF]
The NASA Office of Aeronautics, Exploration, and Technology (OAET) supports a research and technology (R and T) program in electric propulsion to provide the basis for increased performance and life of electric thruster systems which can have a major ...
Barnett, John W. +3 more
core +1 more source
, 2001 As a follow–on to the Tropical Rainfall Measuring Mission (TRMM), the National Aeronautics and Space Administration in the United States, the National Space Development Agency of Japan, and the European Space Agency are considering a satellite mission to
A. Hou +5 more
semanticscholar +1 more source
Développement d'instabilités dans un écoulement subsonique se développant au-dessus d'une cavité : mesures synchronisées PIV-LDV [PDF]
Congr\`{e}s Francophone de Techniques Laser, CFTL 2006, Toulouse,
19 - 22 septembre 2006, France (2006), 2006 A boundary layer interacting with a cavity is a benchmark case that is present in environmental applications, aeronautics, automobile aerodynamics or industrial applications, where the velocity over a rectangular cavity is relatively low. In the present investigation, the interaction between a laminar boundary layer with external velocity Ue and an ...
arxiv