Results 11 to 20 of about 3,471 (201)
Case Studies in Thermal EngineeringAs the use of unpowered ventilation caps continues to grow, it has the potential to be used in vertical shaft natural ventilation tunnel. However, smoke control mechanism of tunnel fire with the influence of unpowered ventilation caps need further study.
Juncheng Jiang, Ru Zhou
exaly +4 more sources
Kinematic analysis of the European Enhanced Exploration Exercise Device in unpowered mode [PDF]
npj MicrogravityUnlike earlier short-duration lunar missions, current exploration-class missions include extended periods of microgravity exposure prior to lunar surface operations.
Christian Winther Nielsen +9 more
doaj +3 more sources
Recent Development of Unpowered Exoskeletons for Lower Extremity: A Survey [PDF]
IEEE Access, 2021 Unpowered exoskeletons (UEs) have attracted extensive research attentions for their portability, handleability and simplicity. However, designing exoskeletons without any active actuators is a great challenge because essential criteria such as ...
Bin Zhang +3 more
doaj +4 more sources
The Effects of Unpowered Soft Exoskeletons on Preferred Gait Features and Resonant Walking
Machines, 2022 Resonant walking with preferred gait features is a self-optimized consequence of long-term human locomotion. Minimal energy expenditure can be achieved in this resonant condition.
Shijie Guo +2 more
exaly +4 more sources
Shoe-Like Unpowered Exoskeleton With Energy Harvesting for Enhanced Walking Economy
IEEE Transactions on Neural Systems and Rehabilitation EngineeringThe development of an exoskeleton to enhance walking efficiency and reduce energy consumption is crucial. However, current designs face challenges such as excessive weight, conspicuous appearance, and power constraints, limiting real-world applications ...
Jyun-Rong Zhuang +2 more
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IEEE Transactions on Neural Systems and Rehabilitation EngineeringUnpowered exoskeletons provide assistance for human walking by recycling negative mechanical energy from lower limb joints. However, current studies fail to further improve the effect of metabolic reduction due to a lack of an optimal match with the ...
Hanwen Zhang +5 more
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Energy management method for an unpowered landing
Journal of Industrial and Management Optimization, 2022 <p style='text-indent:20px;'>The unpowered landing of unmanned aerial vehicle (UAV) is a critical stage, which affects the safety of flight. To solve the problem of the unpowered landing of UAV, an energy management scheme is proposed. After the cruise is over, the aircraft shuts down the engine and begins to land.
Yingjing Shi, Shida Cao
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Optimal Standoff Distance of Subsonic Unpowered Gliding Vehicle
Results in Control and Optimization, 2023 The inverted Y-tail joint standoff weapon is adopted as the Subsonic Unpowered Gliding Vehicle (SUGV) in this article to gain maximum standoff distance.
Ahmad Mahmood, Fazal ur Rehman
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An Unpowered Exoskeleton With a Bionic Multi-Segment Foot Structure for Walking Assistance
IEEE Transactions on Neural Systems and Rehabilitation EngineeringLower limb exoskeletons have been designed to assist human walking. However, current unpowered exoskeletons primarily targeted the ankle joint, but neglected the energy storage and recoil within the foot.
Yueling Lyu +4 more
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IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2022 Over the course of both evolution and development, the human musculoskeletal system has been well shaped for the cushion function of the foot during foot-strike and the impulsive function of the ankle joint during push-off.
Di Hu +5 more
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