Results 101 to 110 of about 37,008,848 (268)
A Digital Hydraulic Valve, Actuated Using a Piezoelectric Linear Motor [PDF]
, 2011 Proportional control in hydraulics is widely utilized. The most widely used current types of proportional valves utilize solenoid technology. While this technology has been around for decades and has been proven an effective means of control, there is ...
Bevill, Brian C
core +1 more source
A normally-closed piezoelectric micro-valve with flexible stopper
AIP Advances, 2016 In the field of controlled drug delivery system, there are still many problems on those reported micro-valves, such as the small opening height, unsatisfactory particle tolerance and high cost.
Song Chen +6 more
doaj +1 more source
Monolayer MoS2 With Ultrahigh Piezoelectricity: From ALD Dose Control to Device Performance
Advanced Science, EarlyView.This study demonstrates that controlling precursor dosages in atomic layer deposition (ALD) serves to regulate ultrathin oxide quality, which in turn determines sulfurization behavior and MoS2 monolayer continuity. The resulting continuous, low‐defect monolayers enable improved piezoelectric performance and support a flexible slippage sensor, linking ...
Yun Li +16 more
wiley +1 more source
Advanced Science, EarlyView.The WTP is a key component of static drainage PEMFCs, enabling cathode water removal and gas sealing through capillary forces. This work investigates the mechanisms governing WTP drainage and sealing performance and develops predictive approaches for WTP design optimization.
Mengdi Guo +3 more
wiley +1 more source
Advanced Science, EarlyView.Reconfigurable self‐contact variable stiffness metamaterials based on shape memory polymers enable programmable stiffness switching. Static arrays store and encrypt information with immunity to electromagnetic interference, while asymmetric stiffness converts symmetric vibration into directional matter transport.
Huadong Qin +7 more
wiley +1 more source
Design of an Intelligent Control System of Mine-used Valve
Gong-kuang zidonghua, 2012 In view of problem that control requirements of mine-used valve controller become more and more complex, the paper proposed a design scheme of intelligent control system of mine-used valve based on M0516LAN microcontroller. The system is composed of main
LIU Yan, MA Wei-hua
doaj
Frequently Asked Questions Related to the Commission on Evidence-Based Policymaking's Report
, 2017 List of frequently-asked questions regarding the final report of the U.S. Commission on Evidence-Based Policymaking with answers and clarifications. Questions are broken into five topics: general, National Secure Data Service (NSDS), privacy, access ...
United States. Commission on Evidence-Based Policymaking.
core
Advanced Intelligent Discovery, EarlyView.A machine learning‐guided self‐driving laboratory screened over 500 nickel‐based layered double‐hydroxide catalysts for alkaline oxygen evolution. Out of the eight metals, the robot uncovered a quaternary Ni–Fe–Cr–Co catalysts requiring only 231 mV overpotential to reach 20 mA cm−2.
Nis Fisker‐Bødker +3 more
wiley +1 more source
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.Existing soft pumps often require tradeoffs between performance and compatibility with soft robotic systems. The proposed trielectrode electrostatic soft pump addresses these limitations through an innovative driving mechanism. Its design, which includes a trielectrode configuration and the use of compliant materials, improves operational efficiency ...
Yangqiao Lin +10 more
wiley +1 more source
Double Helix Structure for Stable Flexural Actuation in Soft Robotics
Advanced Intelligent Systems, EarlyView.This work introduces a double‐helical architecture for soft robotic actuators that enhances twisting resistance, increases output force, and minimizes undesired deformation. Actuators driven by shape‐memory alloy wires exhibit a roughly fivefold higher torsional/flexural stiffness ratio and 50% greater force output.
Louis Plottel +4 more
wiley +1 more source