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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Virtual and Augmented Reality Technologies in the Engineering Process
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Virtual Reality Storytelling Through Simulations
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Virtual Reality Storytelling through Simulations
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CWRU_PANEL2020 Transitioning Ideas into Reality
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Evaluation Methodologies for Virtual Reality and Physical Test Environments For Spacecraft Design
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Using a Wearable, Low-Cost Brain Monitoring System During an Ambulatory Virtual Reality EVA Simulation
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Psychophysiological Monitoring during a Ambulatory Virtual Reality Extravehicular Activity (EVA) Simulation
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Electroactive polymers as artificial muscles - reality and challenges
For many years, electroactive polymers (EAP) received reIatively little attention due to the small number of available materials and their limited actuation capability. The recent emergence of EAP materials with large displacement response changed the potential capability and paradigms of these materials. The main attractive characteristic of EAP is their operational similarity to biological muscles, particularly their resilience and ability to induce large actuation strains. Even though the actuation force of existing EAP materials and their robustness require further improvement, there has already been a series of reported successes. The successful applications that were demonstrated include catheter steering element, miniature manipulator, dust-wiper, miniature robotic arm, and grippers. Some of the currently considered applications may be difficult to accomplish and it is important to scope the requirements to the level that current materials can address. Using EAP to replace existing actuators may be a difficult challenge and therefore it is highly desirable to identify a niche application where it would not need to compete with existing capabilities. The application of these materials as actuators to drive various manipulation, mobility and robotic devices involves multidiscipline including materials, chemistry, electro-mechanics, computers, electronics, etc. This paper reviews the current efforts and the expectations for the future.
Making science fiction an engineering reality using biologically-inspired technologies
This paper reviews the state of the art and challenges to some of the biologically inspired technologies and the potential impact on the field of NDE.
Modeling the Gulf Stream System: How Far from Reality?
Analysis of a primitive equation ocean model simulation of the Atlantic Ocean circulation at 1/6° horizontal resolution are presented with a focus on the Gulf Stream region.
Flying Cassini Through the Grand Finale Orbits: Prediction vs. Reality
After twenty years of successful mission operations and invaluable scientific discoveries, the Cassini orbiter completed its tour around the Saturnian system on the most complex gravity-assist trajectory ever flown. The end-of-mission target of September 15, 2017 was achieved by preserving propellant at the expense of minimizing maneuver cycles. A navigation a strategy that incorporated orbit trim maneuvers was developed years in advance to maintain position dispersions below 250 km (1σ) at three specific periapses. This paper reports on the actual maneuver performance and overall trajectory control to maintain the Grand Finale orbits, highlighting the differences between predicted and implemented values.