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111 to 120 of 141 Results
Virtual reality robotic telesurgery simulations using MEMICA haptic system
Mar 5, 2001
Bar-Cohen, Yoseph; Mavroidis, Constantinos; Bouzit, Mourad; Dolgin, Benjamin; Harm, Deborah L.; Kopchok, George E.; White, Rodney, 2001, "Virtual reality robotic telesurgery simulations using MEMICA haptic system", https://hdl.handle.net/2014/39307, 8th Annual International Symposium on Smart Structures, Newport Beach, California, March 5-8, 2001., JPL Open Repository
The authors conceived a haptic mechanism called MEMICA (Remote Mechanical Mirroring using Controlled stiffness and Actuators) that can enable the design of high dexterity, rapid response, and large workspace haptic system. The development of a novel MEMICA gloves and virtual real...
Piezoelectrically actuated miniature peristaltic pump.
Mar 5, 2001
Bar-Cohen, Yoseph; Chang, Zensheu, 2001, "Piezoelectrically actuated miniature peristaltic pump.", https://hdl.handle.net/2014/39262, 8th Annual International Symposium on Smart Structures, Newport Beach, California, March 5-8, 2001., JPL Open Repository
There is a range of NASA experiments, instruments and applications where miniature pumps are needed. To address such needs, a piezoelectrically actuated miniature pump is being developed. This pump employs a novel volume displacing mechanism using flexural traveling waves that ac...
Characterization of the electromechanical properties of EAP materials
Mar 5, 2001
Bar-Cohen, Yoseph; Sherrit, Stewart; Bhattachary, Kaushik; Lih, Shyh-Shiuh, 2001, "Characterization of the electromechanical properties of EAP materials", https://hdl.handle.net/2014/39265, 8th Annual International Symposium on Smart Structures, Newport Beach, California, March 5-8, 2001., JPL Open Repository
Electroactive polymers (EAP) are an emerging class of actuation materials. Their large electrically induced strains (longitudinal or bending), low density, mechanical flexibility, and ease of processing offer advantages over traditional electroactive materials. However, before th...
Residue detection for real-time removal of paint from metallic surfaces
Mar 5, 2001
Bar-Cohen, Yoseph; Bao, Xiaoqi; Dolgin, Benjamin; Marzwell, Neville, 2001, "Residue detection for real-time removal of paint from metallic surfaces", https://hdl.handle.net/2014/39308, 8th Annual International Symposium on Smart Structures, Newport Beach, California, March 5-8, 2001., JPL Open Repository
Paint stripping from large steel ships and other metallic surfaces is a major issue in the maintenance and refurbishing of structures, and environmental concerns are greatly limiting the possible options. As a result, waterjet with water recycling has become the leading form of p...
Androids: application of EAP as artificial muscles to entertainment industry
Mar 5, 2001
Hanson, D.; Pioggia, G.; Bar-Cohen, Yoseph; de Rossi, D., 2001, "Androids: application of EAP as artificial muscles to entertainment industry", https://hdl.handle.net/2014/39304, 8th Annual International Symposium on Smart Structures, Newport Beach, California, March 5-8, 2001., JPL Open Repository
The classic movie Metropolis (1926), which is nowadays considered a cinema milestone, has shown the possibility to build robots called androids that are science and fiction run together to realize a dream: the human-like robot. In that movie, Dr. Rotwang transforms a simple and c...
Electroactive polymers as artificial muscles - reality and challenges
Mar 4, 2001
Bar-Cohen, Yoseph, 2001, "Electroactive polymers as artificial muscles - reality and challenges", https://hdl.handle.net/2014/39309, 8th Annual International Symposium on Smart Structures, Newport Beach, California, March 5-8, 2001., JPL Open Repository
No abstract provided
Composite Materials Defects Characterrization Using Rapidly Acquired Leaky Lamb Wave Dispersion Data
May 25, 1998
Bar-Cohen, Yoseph; Mal, Ajit K., 1998, "Composite Materials Defects Characterrization Using Rapidly Acquired Leaky Lamb Wave Dispersion Data", https://hdl.handle.net/2014/22700, Copenhagen, Denmark, JPL Open Repository
No abstract provided
Noninvasive Medical Diagnostics & Treatment Using Ultrasonics
Oct 20, 1997
Bar-Cohen, Yoseph; Grandia, Willem; Siegel, Robert, 1997, "Noninvasive Medical Diagnostics & Treatment Using Ultrasonics", https://hdl.handle.net/2014/22607, Pittsburgh, PA, USA, JPL Open Repository
No abstract provided
Transition of Space Technologies to NDE
Oct 10, 1997
Bar-Cohen, Yoseph, 1997, "Transition of Space Technologies to NDE", https://hdl.handle.net/2014/22626, Cerritos, California, USA, JPL Open Repository
No abstract provided
Autonomous Rapid Inspection of Aerospace Structures
Sep 30, 1997
Bar-Cohen, Yoseph, 1997, "Autonomous Rapid Inspection of Aerospace Structures", https://hdl.handle.net/2014/22158, El Paso, Texas, USA, JPL Open Repository
Aging aircraft structures and composite materials are requiring rapid inspection of large areas. Removal from the aircraft for NDE at an inspection facility is not economical as compared to field inspection. Detection and characterization of defects are labor intensive, time cons...
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