Results 51 to 60 of about 54,946 (273)

Axial Piston Pump Fault Diagnosis Method Based on Symmetrical Polar Coordinate Image and Fuzzy C-Means Clustering Algorithm

open access: yesShock and Vibration, 2021
In this paper, a fault diagnosis method based on symmetric polar coordinate image and Fuzzy C-Means clustering algorithm is proposed to solve the problem that the fault signal of axial piston pump is not intuitive under the time-domain waveform diagram ...
Wan-lu Jiang   +3 more
doaj   +1 more source

Tubing and cable cutting tool [PDF]

open access: yes, 1984
A hand held hydraulic cutting tool was developed which is particularly useful in deactivating ejection seats in military aircraft rescue operations. The tool consists primarily of a hydraulic system composed of a fluid reservoir, a pumping piston, and an
Mcsmith, D. D., Richardson, J. I.
core   +1 more source

In Situ Copper Electroplating Turns Material Extrusion 3D Printers Into Metal–Polymer Hybrid Fabricators

open access: yesAdvanced Materials Technologies, EarlyView.
An in situ electroplating approach for MEX 3D printing is proposed, enabling copper deposition during the fabrication of conductive polymers. The method combines a printer‐integrated plating head, ML‐based g‐code control, and stop‐and‐go printing, achieving near‐bulk copper conductivity and enabling fully embedded, assembly‐free electronic components ...
Gianluca Percoco   +5 more
wiley   +1 more source

CFD Analysis of an Axial Piston Pump

open access: yes, 2023
En el ámbito de la Oleohidráulica, las bombas de pistón poseen los diseños más sofisticados, de hecho, las bombas de pistones son las únicos capaces de trabajar a altas presiones, además de poseer el mejor rendimiento de todo el grupo de bombas existentes.
openaire   +4 more sources

Collapsible pistons for light-gas guns [PDF]

open access: yes, 1973
Moving and expandable parts of gun consist of pump-tube diaphragm, piston, launch-tube diaphragm, and saboted projectile. As a result of improved piston design, pressure cycle has been significantly improved by smoother buildup, increasing muzzle ...
Teng, R. N.
core   +1 more source

Mild Focal Cooling Decouples Dendrites to Reconfigure Cortical Output

open access: yesAdvanced Science, EarlyView.
Mild cooling of the cortical surface selectively modulates apical dendritic excitability, plasticity, and somato‐dendritic coupling, while uncoupling these effects from basal dendrites, and reshapes apical‐driven responses in barrel cortex during whisker touch.
Meisam Habibi Matin   +2 more
wiley   +1 more source

Flow pulsation reduction of a single-piston piezoelectric pump based on elastic cavity group and unloading valve

open access: yesAdvances in Mechanical Engineering, 2021
A piston piezoelectric (PZT) pump has many advantages for the use of light actuators. How to deal with the contradiction between the piston amount and oil delivery quality is an essence when designing the pump.
Bin Wang, Nanyue Xu, Rongfei Yang
doaj   +1 more source

Automatic pump Patent [PDF]

open access: yes, 1968
Automatically reciprocating, high pressure pump for use in spacecraft cryogenic ...
Wilson, R. E.
core   +1 more source

An Implanted Tooth That Can Feel

open access: yesAdvanced Science, EarlyView.
To endow the implanted tooth with masticatory perception, herein we demonstrate that a 3D‐printed piezoelectric‐core/robust‐sheath implanted tooth can rebuild the sensing feedback, serving as “mechanoreceptors” in converting the mechanical chewing force to electrical signals, and up to brain through surrounding alveolar nerve system.
Yaru Cao   +13 more
wiley   +1 more source

Effect of damping groove on flow dynamics and vibration characteristics of axial piston pump

open access: yesAIP Advances, 2019
This paper presents pressure, flow and vibration characteristics of an axial piston pump valve plate with damping grooves. For flow ripple and vibration of the pump reduction, an improved compressible fluid model of axial-piston pump with damping groove ...
Tang Hesheng   +3 more
doaj   +1 more source

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