+ Visit NASA.gov + Contact NASA   + Home Select Search Field * All Report - Patent Number Abstract *Accession Number *NASA Center *Author NameDocument IDKeywordsPublication Date *Title * Find Results With All of the words At least one of the words Enter Search Term  within returned results    Search Tips: Use only the fields with * to search NIX collection. Enclose terms in double quotation marks (") to search for exact phrases, ie: "space shuttle". NOTE: Commas and dashes are removed from search term by search engine. Select Reset Search button to start a new search. See Help for more tips. – NASA Center  + Jet Propulsion Laboratory  + Langley Research Center + Publication Year + Subject + Availability Options + Item/Media Type Selected Navigations: Author > Bar-Cohen, Yoseph [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 79 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order 1 2 3 4 5 6 7 8 Next  Progress in Acoustic Transmission of Power through Walls Author(s): Sherrit,Stewart; Coty, Benjamin; Bao, Xiaoqi; Bar-Cohen, Yoseph; Badescu, Mircea; Chang, Zensheu Abstract: A document presents updated information on implementation of the wireless acoustic-electric feed-through (WAEF) concept, which was reported in Using Piezoelectric Devices To Transmit Power Through Walls (NPO-41157), NASA ... NASA Center: Jet Propulsion Laboratory Publication Year: 2008 Added to NTRS: 2009-01-06 Document ID: 20080048150; Report Number: NPO-44928 Sealing and External Sterilization of a Sample Container Author(s): Bar-Cohen, Yoseph; Badescu, Mircea; Bao, Xiaoqi; Sherrit, Stewart; Olorunsola, Ayoola Abstract: No Abstract Available NASA Center: Jet Propulsion Laboratory Publication Year: 2008 Added to NTRS: 2009-01-01 Document ID: 20080048027; Report Number: NPO-45610 Biomimetics as a Model for Inspiring Human Innovation Author(s): Bar-Cohen, Yoseph Abstract: Electroactive polymers (EAP) are human made actuators that are the closest to mimic biological muscles. Technology was advanced to the level that biologically inspired robots are taking increasing roles in the world around ... NASA Center: Jet Propulsion Laboratory Publication Year: 2006 Added to NTRS: 2008-07-07 Document ID: 20080022198 Rotary Motors Actuated by Traveling Ultrasonic Flexural Waves Author(s): Bar-Cohen, Yoseph; Bao, Xiaoqi; Grandia, Willem Abstract: Efficient miniature actuators that are compact and consume low power are needed to drive space and planetary mechanisms in future NASA missions. Ultrasonic rotary motors have the potential to meet this NASA need and they are ... NASA Center: Jet Propulsion Laboratory Publication Year: 1999 Added to NTRS: 2008-06-02 Document ID: 20000068538 NDE and Advanced Actuators for Space Applications at JPL Author(s): Bar-Cohen, Yoseph Abstract: Nondestructive Evaluation and Advanced Actuators (NDEAA) are presented. The focus areas are on mechanisms and devices that are driven by acoustic or elastic waves. The topics include: 1) Nondestructive Evaluation; 2) ... NASA Center: Jet Propulsion Laboratory Publication Year: 1999 Added to NTRS: 2008-06-02 Document ID: 20000065660 Ultrasonic Drilling and Coring Author(s): Bar-Cohen, Yoseph Abstract: A novel drilling and coring device, driven by a combination, of sonic and ultrasonic vibration, was developed. The device is applicable to soft and hard objects using low axial load and potentially operational under extreme ... NASA Center: Jet Propulsion Laboratory Publication Year: 1998 Added to NTRS: 2008-06-02 Document ID: 20000057285 Electroactive Polymers as Artificial Muscles: Capabilities, Potentials and Challenges Author(s): Bar-Cohen, Yoseph Abstract: The low density and the relative ease of shaping made polymers highly attractive materials and they are increasingly being chosen for aerospace applications. Polymer matrix composite materials significantly impacted the ... NASA Center: Jet Propulsion Laboratory Publication Year: 2000 Added to NTRS: 2008-06-02 Document ID: 20000056613 Biologically Inspired Technology Using Electroactive Polymers (EAP) Author(s): Bar-Cohen, Yoseph Abstract: Evolution allowed nature to introduce highly effective biological mechanisms that are incredible inspiration for innovation. Humans have always made efforts to imitate nature's inventions and we are increasingly making ... NASA Center: Jet Propulsion Laboratory Publication Year: 2006 Added to NTRS: 2008-04-01 Document ID: 20080013272 Androids: application of EAP as artificial muscles to entertainment industry Author(s): Hanson, D.; Pioggia, G.; Bar-Cohen, Yoseph; de Rossi, D. Abstract: 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 ... NASA Center: Jet Propulsion Laboratory Publication Year: 2001 Added to NTRS: 2006-12-25 Document ID: 20060044100 Autonomous Rapid Inspection of Aerospace Structures Author(s): Bar-Cohen, Yoseph Abstract: 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 ... NASA Center: Jet Propulsion Laboratory Publication Year: 1997 Added to NTRS: 2006-12-25 Document ID: 20060035242 1 2 3 4 5 6 7 8 Next  + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007