Results 111 to 120 of about 2,359,693 (400)

Optimization and design of a cable driven upper arm exoskeleton [PDF]

open access: yes, 2009
This paper presents the design of a wearable upper arm exoskeleton that can be used to assist and train arm movements of stroke survivors or subjects with weak musculature.
Agrawal, S.K.   +4 more
core   +1 more source

Design and Prototyping of a Bio-inspired Kinematic Sensing Suit for the Shoulder Joint: Precursor to a Multi-DoF Shoulder Exosuit [PDF]

open access: yesarXiv, 2019
Soft wearable robots are a promising new design paradigm for rehabilitation and active assistance applications. Their compliant nature makes them ideal for complex joints like the shoulder, but intuitive control of these robots require robust and compliant sensing mechanisms.
arxiv  

Performance Analysis of Vibrotactile and Slide-and-Squeeze Haptic Feedback Devices for Limbs Postural Adjustment [PDF]

open access: yesarXiv, 2022
Recurrent or sustained awkward body postures are among the most frequently cited risk factors to the development of work-related musculoskeletal disorders (MSDs). To prevent workers from adopting harmful configurations but also to guide them toward more ergonomic ones, wearable haptic devices may be the ideal solution.
arxiv  

Effect of Propagating Dopant Reactivity on Lattice Oxygen Loss in LLZO Solid Electrolyte Contacted with Lithium Metal

open access: yesAdvanced Energy Materials, EarlyView.
The decomposition of Nb‐substituted LLZO solid electrolytes is reported through a propagating reaction between Nb5+ dopants and the Li metal electrode. This work suggests dopants that segregate to interfaces/grain boundaries in LLZO will exhibit reactivity that can propagate into bulk and shed light on new mechanisms for the problematic role of oxygen ...
Michael J. Counihan   +17 more
wiley   +1 more source

Blue‐to‐Green Fine‐Tunable Narrowband Delayed Fluorescence in Peripherally Dendritic Modified Bis‐Indolocarbazoles

open access: yesAngewandte Chemie, EarlyView.
An exquisite color tuning of narrowband thermally activated delayed fluorescence from deep‐blue to green was achieved for non‐boron ubiquitous luminophores based on the dendritic modification design concept. The corresponding OLEDs exhibited high‐efficiency, high‐color‐purity blue and green electroluminescence, with high external quantum efficiencies ...
Jun Hyeon Lee   +3 more
wiley   +2 more sources

A model-based approach to stabilizing crutch supported paraplegic standing by artifical hip joint stiffness [PDF]

open access: yes, 2003
The prerequisites for stable crutch supported standing were analyzed in this paper. For this purpose, a biomechanical model of crutch supported paraplegic stance was developed assuming the patient was standing with extended knees.
Boom, Herman B.K.   +4 more
core   +3 more sources

A Novel Passive Shoulder Exoskeleton Using Link Chains and Magnetic Spring Joints

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering
Work-related musculoskeletal disorders represent a major occupational disability issue, and 53.4% of these disorders occur in the back or shoulders.
Hyun-Ho Lee   +6 more
doaj   +1 more source

Common surgical procedures about the shoulder joint

open access: yesSouth African Journal of Physiotherapy, 1982
Details of surgery to the shoulder joint, relating to the rotator cuff and acromioclavicular joint, repair of recurrent dislocation of the shoulder joint and stabilisation of a destroyed or functionless joint, are described.
W. Shepherd-Wilson
doaj   +1 more source

Spring and Power in Hovering Ornithopters

open access: yesAdvanced Intelligent Systems, EarlyView.
Only small ornithopters can hover, longest at the hummingbird size. This article reviews the drive and power of these hovering machines, focusing on elastic energy and thrust boosters. Unlike two‐winged designs, X‐winged and multiple‐V‐winged ornithopters benefit from lower disk loading and slower, smaller wingbeats, and the clap‐and‐fling effect ...
Gih‐Keong Lau   +4 more
wiley   +1 more source

Cathodic Hydroxide Ions Induce Tetrose Formation during Glycolaldehyde Electroreduction to Alcohols: A Potential CO2‐to‐Carbohydrate Pathway

open access: yesAngewandte Chemie, EarlyView.
The glycolaldehyde electrolysis mechanism to alcohols and tetroses is comprehensively studied. Novel insights on the role of glycolaldehyde in the late stages of the overall CO2 reduction reaction pathways to ethanol and ethylene glycol on copper are presented.
Ernest Pahuyo Delmo   +12 more
wiley   +2 more sources

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