Results 21 to 30 of about 406 (98)

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

Nailing of Intertrochanteric Fractures: Review on Pitfalls and Technical Tips

Journal of Orthopaedics, Trauma and Rehabilitation, 2010
The authors describe the advantages and drawbacks of nailing over the dynamic hip screw for the fixation of hip fractures. The technical pitfalls of nailing and the tips to avoid failure of fixation in nailing have been discussed.
Oh Jong-Keon, Hwang Jin-Ho, Sahu Dipit
doaj   +1 more source

Measurement of Tip Apex Distance and Migration of Lag Screws and Novel Blade Screw Used for the Fixation of Intertrochanteric Fractures. [PDF]

PLoS ONE, 2017
Fixation with a dynamic hip screw (DHS) is one of the most common methods for stabilizing intertrochanteric fractures, except for unstable and reverse oblique fracture types.
Jesse Chieh-Szu Yang, Hsin-Chang Chen, Yu-Shu Lai, Cheng-Kung Cheng   +3 more
doaj   +1 more source

3D‐Printing Aided Rapid Prototyping of Pretensioned Tensegrity Structures for Robotic Applications

Advanced Robotics Research, EarlyView.
Printing, injection molding, and assembly (PMA) is a method for rapid prototyping mesoscale, topologically complex, and tensioned tensegrity structures. In combination with PMA method, two mold design strategies: modular mold and compact channel layout, enable efficiency and scalability for tensegrity fabrication.
Yi Sun, Jan Petrš, Omar Aloui, Dario Floreano   +3 more
wiley   +1 more source

Giant Magnetic Purcell Effect Induced by High‐Order Mie Resonances

Advanced Science, EarlyView.
High‐order Mie resonances in dielectric spheres selectively amplify magnetic dipole emission from Eu3+ emitters, producing a giant magnetic Purcell effect. Localized emitters can efficiently access high‐order resonant modes, and the low‐loss TiO2 platform enables direct far‐field observation of the enhanced emission.
Haonan Shi, Ningning Song, Anjun Huang, Zhengwen Yang, Jingbo Sun, Yongzheng Wen, Ji Zhou   +6 more
wiley   +1 more source

Force‐Electric Nanotentacles of Tantalum Implant Accelerate Cellular Energy Metabolism/Crosstalk for Immunomodulation‐Vascularized Bone Integration

Advanced Science, EarlyView.
A biomimetic force‐electric nanotentacle‐enabled tantalum (Ta) implant with surface‐nanostructured LiTaO3 (n‐LiTaO3) was first developed via laser nanofabrication combined with Li+‐induced in situ reaction, enabling the transduction of ultrasound into bioelectrical cues.
Taixing Zhang, Ke Ma, Kangqing Zuo, Pandong Lin, Tailong Zhang, Rongliang Ding, Linbo Zhang, Aonan Li, Yinchuan Wang, Yanling Huang, Jichao Feng, Guiyong Xiao, Yupeng Lu, Bing Han, Zhiqiang Wang, Ningbo Li   +15 more
wiley   +1 more source

Dynamic hip system blade versus cannulated compression screw for the treatment of femoral neck fractures: A retrospective study

Acta Orthopaedica et Traumatologica Turcica, 2017
Objective: The aim of this study was to compare clinical outcomes of patients with femoral neck fractures treated with the dynamic hip system blade (DHS-BLADE) or cannulated compression screws.
Chao Chen, Li Yu, Xin Tang, Mo-zhen Liu, Li-zhong Sun, Changjian Liu, Zhen Zhang, Chang-zhou Li   +7 more
doaj   +1 more source

Design and biomechanical study of slide-poking external fixator for hip fracture

Journal of International Medical Research, 2020
Background Femoral head collapse and coxa vara lead to internal fixator failure in elderly patients with hip fracture. External fixator application is an optimal choice; however, the existing methods have many disadvantages.
Hua-Biao Chen, Hong-Bo Wu, Min Chen, Yu-Liang Huang   +3 more
doaj   +1 more source

Abstract Representation of Movement Parameters in Basal Ganglia Output

Advanced Science, EarlyView.
The basal ganglia output provides a scalable velocity/position signal across behavioral contexts, supporting the idea that these variables are represented in the brain as abstract entities rather than as fixed changes in joint angles or specific sets of body effectors.
Ana Silvia Báez‐Cordero, Diana I. Ortega‐Romero, Claudia I. Pérez‐Díaz, Pavel E. Rueda‐Orozco   +3 more
wiley   +1 more source

Dynamic Hip Screw Blade Fixation for Intertrochanteric Hip Fractures

Journal of Orthopaedic Surgery, 2012
Purpose. To assess the one-year outcome of a dynamic hip screw (DHS) blade in the treatment of AO/OTA 31-A1 and 31-A2 intertrochanteric hip fractures. Methods. 35 men and 65 women aged 47 to 100 (mean, 83) years underwent fixation with a DHS blade for A1
Frankie Leung, Paata Gudushauri, Grace Yuen, Tak-Wing Lau, Christian Fang, Shew-Ping Chow   +5 more
doaj   +1 more source