Results 31 to 40 of about 7,758 (258)

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Numerical investigation of the influence of the inlet nozzle diameter on the degree of fluid exchange process in a hydraulic cylinder

Engineering Applications of Computational Fluid Mechanics, 2021
Operation of heavy-duty machines leads to an observation that seals in hydraulic cylinders are frequently subjected to thermal degradation. The basis of this research is the previously proven thesis that the temperature of the liquid in the cylinder and ...
Tomasz Siwulski, Urszula Warzyńska
doaj   +1 more source

Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications

Advanced Materials, EarlyView.
Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko, Chiamaka Akah, Ravinder Dahiya   +2 more
wiley   +1 more source

Design of closed-loop control system for hydraulic cylinder position of roadway support

Gong-kuang zidonghua, 2017
For requirements of high precision control and energy saving of hydraulic cylinder position of support in coal mine roadway, a closed-loop control system for hydraulic cylinder position of roadway support was designed based on load sensing principle ...
WANG Fan, ZHAO Jiyu
doaj   +1 more source

Eutectic Gallium‐Indium as a Potential Non‐Toxic Replacement in Mercury Intrusion Porosimetry

Advanced Materials Technologies, EarlyView.
A practical alternative to mercury intrusion porosimetry is presented using non‐oxidized eutectic gallium‐indium. An eGaIn Filling Station enables oxygen‐free preparation of standard penetrometers, and the resulting measurements faithfully reproduce pore‐size distributions and intrusion volumes measured with mercury across several standard reference ...
Denis Schuetz, Michael F. Noisternig, Manuel Brandstaetter, Valentin Seyfried, Norbert Reitinger, Bernhard Nell, Alexander Kasper, Riaz Ahmad, Martin Thomas   +8 more
wiley   +1 more source

Multifunctional Adhesive Hydrogel for Rapid Cardiac Hemostasis and Antibacterial Protection

Advanced Materials Technologies, EarlyView.
A multifunctional polyacrylamide/gelatin/tannic acid hydrogel (PGT) is presented for rapid cardiac hemostasis under wet, dynamic conditions. Surface tannic acid coating enables instantaneous wet adhesion, accelerates coagulation, and confers antibacterial activity within a single platform.
Seoha Kim, Kaeun Chae, Inseon Kim, Kye Il Joo, Chang Sup Kim, Seunghun S. Lee   +5 more
wiley   +1 more source

Analyzing of influencing factors on dynamic response characteristics of double closed-loop control digital hydraulic cylinder

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2019
A digital hydraulic cylinder that uses mechanical closed-loop feedback regulation to realize double closed-loop control of displacement and velocity is designed in this study.
Yimin XIA, Yupeng SHI, Ye YUAN, Yumin ZHANG, Zhiwei YAO   +4 more
doaj   +1 more source

3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends

Advanced Robotics Research, EarlyView.
Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu, Bin Cui, Xumin Huang, Xiaoyu (Rayne) Zheng, T. Thang Vo‐Doan, Ruirui Qiao   +5 more
wiley   +1 more source

Research on PID Position Control of Multi-joint Manipulator for Rock Drill Car

工程科学与技术, 2019
Hydraulic drilling rigs play an important role in modern tunneling construction. Existing hydraulic drilling rigs need to control 6 hydraulic cylinders and 2 hydraulic motors separately when searching for holes.
Hongbo LUO, Xianyang SHI, Peng WEI, Hao WANG   +3 more
doaj  

Design and experimental study of electro-hydraulic buffer control valve for hydraulic support push cylinder

Gong-kuang zidonghua
During the pushing and pulling operations of the push cylinder of the hydraulic support in the working face, the instantaneous pressure surge at startup is severe, which can lead to cylinder bulging, expansion, seal failure, or even the fracture of ...
JIANG Sulong, GUO Pu, ZHAO Jiyun, MAN Jiaxiang, CAO Chao   +4 more
doaj   +1 more source