Results 51 to 60 of about 450,434 (280)

Digital hydraulic multi-pressure actuator – the concept, simulation study and first experimental results

, 2017
The decentralisation of hydraulic systems is a recent trend in industrial hydraulics. Speed variable drive is one concept where an actuator is driven by an integrated pump, thus removing the need for control valves or complex centralised variable ...
Pietola, Matti, Aalto, Arttu, Linjama, Matti, Tapio Lantela, Kalevi Huhtala, Matti Pietola, Huhtala, Kalevi, Mikko Huova, Arttu Aalto, Lantela, Tapio, Huova, Mikko, Matti Linjama   +11 more
core   +1 more source

Toward Pore‐Engineered 3D‐Printed Materials for Sorption Water Harvesting, Interfacial Evaporation, and Radiative Cooling

Advanced Materials, EarlyView.
Water harvesting, radiative cooling, and interfacial solar evaporation are fundamentally governed by coupled heat, mass, and light transport processes. These processes are mediated by pore architecture, including pore size, connectivity, and hierarchical organization.
Dejan J. Trajkovski, Higgins M. Wilson, Abdallah Y. M. Ali, Jiaxing Xu, Ruzhu Wang, Primož Poredoš   +5 more
wiley   +1 more source

Hydraulic miniature actuators controlled by electrorheological fluid

, 2022
S.467-470As minimally invasive interventions and robotic assistance systems gain in importance in modern medicine, actuators with dimensions small enough to fit into compact surgical instruments are needed.
Siegfarth, Marius
core   +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

Comparative efficiency testing of a composite hydraulic cylinder

Aviation
The paper points to the increasing use of composite materials in hydraulic components. This entails many benefits, such as weight reduction which is particularly important in aviation. However, new problems arise with the use of new materials.
Michał Stosiak, Marek Lubecki, Michał Banaś   +2 more
doaj   +1 more source

Development and application of adjustable electro-hydraulic actuator

You-qi chuyun, 2020
In view of the current situation that adjustable electro-hydraulic actuators for pipeline depend on import, effortshave been made to the localization of adjustable electro-hydraulic actuator to guarantee the safety of national energy, toimprove the ...
Xiliang YANG, Yunfeng SUN, Xiaozheng YANG, Xiguang GAO, Liwen ZHANG, Xiaolong REN, Qingjun YANG   +6 more
doaj   +1 more source

Microfabrication of Soft Millirobots Propelled by Low Voltage Electrohydraulic Actuators

Advanced Materials Technologies, EarlyView.
Manual layer‐by‐layer assembly is replaced by wafer‐level MEMS batch fabrication for compliant polymer‐based electrohydraulic actuators. The microfabricated devices integrate sacrificially defined microcavities, Parylene‐C‐sealed inlets, and multilayer polymer–metal films.
Shai Shmulevich, Florian Hartmann, Herbert Shea   +2 more
wiley   +1 more source

Adaptive sliding-mode delay compensation for real-time hybrid simulations with multiple actuators

Frontiers in Built Environment
Real-time hybrid simulation (RTHS) is a widely applied test method in structural engineering, which is developed from pseudo-dynamic test. Much of the past work has been centered on one-dimensional RTHS using a single hydraulic actuator.
Yuekun Shangguan, Zhen Wang, Yu Guo, Yucai Chen, Yunhai Zeng, Huimeng Zhou   +5 more
doaj   +1 more source

Aerosol Jet Printing of Benzocyclobutene as a Thermally Stable, Low‐Loss Dielectric for Multilayer Microwave Electronics

Advanced Materials Technologies, EarlyView.
Multilayer aerosol jet printed components with a low‐loss, thermally stable dielectric are demonstrated using benzocyclobutene. Ink formulation and in‐line droplet evaporation control support high‐quality, versatile, and stable printing performance. A specialized measurement for low‐loss materials reveals promising microwave properties, which, combined
Md Ramjan Ali, Trent Moritz, Mohammad Tayeb Al Qaseer, Ethan B. Secor   +3 more
wiley   +1 more source

Design and control of a hydraulic composite actuator for vibration simulation

Advances in Mechanical Engineering, 2018
A hydraulic composite actuator is developed for vibration simulation. The hydraulic scheme and control principle are introduced and an open–closed-loop iterative learning control method is proposed for control issue.
Jianlin Xuan, Shoukun Wang, Hu Liu
doaj   +1 more source