Results 291 to 300 of about 196,223 (392)

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

Advanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino, Phuoc Thien Phan, James Davies, Bibhu Sharma, Tianruo Guo, Chi Cong Nguyen, Nigel H. Lovell, Thanh Nho Do   +7 more
wiley   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

Reduction of the Thermal Conductivity of Polyurethanes by Fluorination: Impact of Crystallinity, Atomic Density, and Sound Velocity. [PDF]

Angew Chem Int Ed Engl
Zhou J, Chen C, Sun J, Fielitz TR, Zhou W, Cahill DG, Braun PV.   +6 more
europepmc   +1 more source

Design Optimization of a Variable Stiffness Robotic Gripper with Passive Restoration Fabricated by Multimaterial 3D Printing

Advanced Robotics Research, EarlyView.
A multimaterial robotic gripper fabricated via multimaterial 3D printing integrates conductive thermopolymer joints with flexible elastomeric components. Joule heating enables precise joint‐level stiffness modulation, enhanced by embedded temperature sensors, passive shape restoration, and active cooling, enabling versatile manipulation capabilities ...
Daniel Jee Seng Goh, Guo Liang Goh, Selvanther Sivarajan, Van Pho Nguyen, Wai Yee Yeong   +4 more
wiley   +1 more source

Hydrolyzable Bio-Based Bisphenols Enabled by the Tishchenko Reaction for Polyurethane Vitrimers with Closed-Loop Recyclability. [PDF]

Adv Sci (Weinh)
Wang J, Qiang H, Huang R, Zhao D, Tong Z, Fan Z, Du J, Zhu Y.   +7 more
europepmc   +1 more source

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

Advanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

Turning down the heat: catalyst-free, low-temperature chemical degradation of thermoplastic polyurethanes.

Polym Chem
Roig A, Wang H, Du Prez FE.
europepmc   +1 more source

Novel Magnetically Charged Grafts for Vascular Repair: Process Optimization, Mechanical Characterization and In Vitro Validation. [PDF]

Polymers (Basel)
Cruz-Maya I, De Santis R, Lanotte L, Guarino V.   +3 more
europepmc   +1 more source

Microphase Structureand Component Influence on DrugSorption: Polyurethane-Drug Interaction Elucidation in Medical CatheterSystems

Lin Tang (65412), Ao Wang (1688005), Hecheng Wu (13181181), Wenkai Liu (6649370), Feng Luo (47640), Jiehua Li (472477), Zhen Li (49109), Hong Tan (472478)   +7 more
openalex   +1 more source