Results 111 to 120 of about 405,169 (366)

Validation and application of a computational model for wrist and hand movements using surface markers [PDF]

open access: yes, 2008
A kinematic model is presented based on surface marker placement generating wrist, metacarpal arch, fingers and thumb movements. Standard calculations are used throughout the model and then applied to the specified marker placement.
Burridge, J.H.   +4 more
core   +1 more source

Learning from the few: Fine-grained approach to pediatric wrist pathology recognition on a limited dataset [PDF]

open access: yesComputers in Biology and Medicine, https://www.sciencedirect.com/journal/computers-in-biology-and-medicine, 2024
Wrist pathologies, {particularly fractures common among children and adolescents}, present a critical diagnostic challenge. While X-ray imaging remains a prevalent diagnostic tool, the increasing misinterpretation rates highlight the need for more accurate analysis, especially considering the lack of specialized training among many surgeons and ...
arxiv   +1 more source

Recent Advances of Graphene‐Based Wearable Sensors: Synthesis, Fabrication, Performance, and Application in Smart Device

open access: yesAdvanced Materials Interfaces, EarlyView.
This review article explores applications in wearable sensors such as mechanical, electrophysiological, and gas sensors, highlighting advancements that improve device performance and predictability. In addition to analyzing graphene's synthesis techniques, including traditional and advanced laser‐based methods, the article discusses fabrication ...
Fatemeh Saeedi   +2 more
wiley   +1 more source

Optimal dimensional synthesis of force feedback lower arm exoskeletons [PDF]

open access: yes, 2008
This paper presents multi-criteria design optimization of parallel mechanism based force feedback exoskeletons for human forearm and wrist. The optimized devices are aimed to be employed as a high fidelity haptic interfaces.
Patoglu, Volkan   +3 more
core   +1 more source

Wearable Electrohydraulic Actuation For Salient Full‐Fingertip Haptic Feedback

open access: yesAdvanced Materials Technologies, EarlyView.
This study introduces a wearable soft robotic system that combines a flat and conformable electrohydraulic pump, a mechanically transparent channel, and an ultra‐thin fingertip chamber to provide salient haptic feedback that imitates natural touch experiences.
Yitian Shao   +4 more
wiley   +1 more source

Enhancing Wrist Fracture Detection with YOLO [PDF]

open access: yes
Diagnosing and treating abnormalities in the wrist, specifically distal radius, and ulna fractures, is a crucial concern among children, adolescents, and young adults, with a higher incidence rate during puberty. However, the scarcity of radiologists and the lack of specialized training among medical professionals pose a significant risk to patient ...
arxiv   +1 more source

Facile Synthesis of a Carbon Nano Dot‐Based Wearable Flexible Thermoelectric Device

open access: yesAdvanced Materials Technologies, EarlyView.
A wearable proto‐type device made with low‐cost, bio‐friendly, and environmentally safe materials that can be readily fabricated to generate energy from low waste temperatures is demonstrated. The Carbon Nano Dot composite thin films are supported by a flexible cellulose substrate that harnesses thermoelectric principles to generate power from body ...
Al Jumlat Ahmed   +8 more
wiley   +1 more source

Multi‐Stamping on Multi‐Prestrain (MSMP) Process for Multifunctional Wearable Bioelectronics with Optimized Electromechanical Properties

open access: yesAdvanced Materials Technologies, EarlyView.
A novel multi‐stamping on multi‐prestrain (MSMP) process is proposed, where sensor elements are transferred onto a substrate under different prestrains (0–150%) within a single integrated platform. This MSMP approach not only resolves the mismatch issue in stretchable wearable electronics, but also ensures that each sensor element exhibits optimal ...
Jae In Kim   +9 more
wiley   +1 more source

The Computation of All 4R Serial Spherical Wrists With an Isotropic Architecture [PDF]

open access: yesJournal of Mechanical Design 125, 2 (06/2003) 275-280, 2007
A spherical wrist of the serial type with n revolute (R) joints is said to be isotropic if it can attain a posture whereby the singular values of its Jacobian matrix are all equal to sqrt(n/3). What isotropy brings about is robustness to manufacturing, assembly, and measurement errors, thereby guaranteeing a maximum orientation accuracy.
arxiv   +1 more source

Vision‐Assisted Avocado Harvesting with Aerial Bimanual Manipulation

open access: yesAdvanced Robotics Research, EarlyView.
This work outlines the design and implementation of a bimanual aerial robot that employs visual perception and learning to detect, reach, and harvest avocados. A new gripper and fixer arm assembly is used to harvest avocados, while visual perception enables the detection of avocados and estimation of their position and orientation for determining ...
Zhichao Liu   +3 more
wiley   +1 more source

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