Results 111 to 120 of about 1,341,415 (398)

A Motion‐Sensing Integrated Soft Robot with Triboelectric Nanogenerator for Pipeline Inspection

Advanced Intelligent Systems, EarlyView.
A soft robot integrated with triboelectric nanogenerator‐based tactile sensors is proposed to achieve locomotion within pipelines and exteroception of different materials and structures of pipeline inner surfaces. By introducing a 1D‐convolutional neural network algorithm, the soft robot's accuracy in recognizing eight different pipe inner surface ...
Rui Chen, Huigang Wang, Haoji Wang, Huijiang Wang, Li Bai, Xinpei Ai, Lifu Liu, Zhihao Hu, Zean Yuan   +8 more
wiley   +1 more source

Modular Stimuli‐Responsive Valves for Pneumatic Soft Robots

Advanced Intelligent Systems, EarlyView.
Modular stimuli‐responsive valves, based on responsive materials (i.e., liquid crystal elastomers and hydrogels) and mechanical mechanisms, can autonomously regulate airflow in the presence of multiple environmental stimuli, such as light and water.
Qiguang He, Rui Yin, Yucong Hua, Hang Shu, Xiaoheng Zhu, A. B. M. Tahidul Haque, Samuele Ferracin, Saheli Patel, Weijian Jiao, Jordan R. Raney   +9 more
wiley   +1 more source

Advances in 3D and 4D Printing of Soft Robotics and Their Applications

Advanced Intelligent Systems, EarlyView.
This article summarizes the development of 3D‐printed soft robotics in the recent decade. The article discusses the printing capabilities of different additive manufacturing technologies in terms of soft polymers, multimaterial printability, soft robotic printing, and 4D printing.
Hao Liu, Changchun Wu, Senyuan Lin, James Lam, Ning Xi, Yonghua Chen   +5 more
wiley   +1 more source

Optimal vortex formation as a unifying principle in biological propulsion [PDF]

, 2009
I review the concept of optimal vortex formation and examine its relevance to propulsion in biological and bio-inspired systems, ranging from the human heart to underwater vehicles.
Dabiri, John O.
core   +1 more source

Analytical Modeling and Design of Fresnel Lens Transducers [PDF]

arXiv, 2019
In this paper, we present an analytical modeling technique for circularly symmetric piezoelectric transducers, also called as Fresnel Lens. We also present the design of a flat/piston transducer that can generate unique acoustic wave patterns, having both converging and vortexing effects.
arxiv  

Multifunctional Position and Stiffness Control of Soft Fluidic Actuators Using Supercooled Liquid

Advanced Intelligent Systems, EarlyView.
This work explores the use of supercooled liquid as a multifunctional working fluid for soft actuators to allow independent control of position and stiffness; the solution is used to both inflate the elastomer chambers while in liquid state and to achieve a dramatic increase in stiffness (up to 13 times) with rapid, reversible crystallization.
Hoseung Seo, Michael T. Tolley
wiley   +1 more source

High-temperature gas/liquid stress relaxometers [PDF]

, 1974
Two relaxometers allow testing of elastomers in various fluids. First relaxometer uses fork-like loading spacer interposed between loading lever and support ring, so that sample is stretched predetermined amount.
Kalfayan, S. H., Silver, R. H.
core   +1 more source

Smart Transfemoral Prosthetic Socket with Motorized Cable‐Driven System

Advanced Intelligent Systems, EarlyView.
This study presents an innovative transfemoral socket featuring a motorized cable‐driven system and a sensorized liner, designed to adapt to changes in residual limb volume while monitoring interface pressures. Users can seamlessly control the socket in both open‐ and closed‐loop modes via a customized mobile application, enhancing comfort and ...
Linda Paternò, Ahmed Zohaib Zaidi, Maria Grazia Polizzotto, Sofia Dalmiani, Djoeke Helsloot, Sybren Heikens, Emanuele Gruppioni, Arianna Menciassi   +7 more
wiley   +1 more source

TECHNOLOGICAL PECULIARITIES OF PRODUCTION OF PISTONS FOR HIGH-POWERED ENGINES

Литьë и металлургия, 2009
The paper present the results obtained when investigating fabrication of castings for pistons of high-augmented diesel internal combustion engine. The optimum casting parameter ranges are determined.
M. A. Sadoha, A. T. Volochko, V. V. Ovchinnikov   +2 more
doaj  

Transition of a vortex ring measured by 3D scanning Tomo-PIV [PDF]

, 2016
A vortex ring with piston-based Reynolds number Rep=4650 is studied experimentally by means of time-resolved scanning tomographic PIV. The present measurement technique provides the so-called 4D flow field, thus enables revealing the vortex ring’s ...
Bruecker, C., Pointz, B., Sun, Z.
core