Results 51 to 60 of about 909,329 (315)

Analysis of pressure at transition zone of valve plate of radial piston pump

open access: yesEngineering Research Express, 2022
In present studies focuses on the characteristics of flow-pressure of piston cylinder barrel and silencing groove chambers near the transition zone of valve plate of a fixed displacement radial piston pump.
L. Kumar, N. Mandal
semanticscholar   +1 more source

One-dimensional fluid diffusion induced by constant-rate flow injection: Theoretical analysis and application to the determination of fluid permeability and specific storage of a cored rock sample [PDF]

open access: yes, 2004
We describe the conceptual design and first application of a new method for simultaneously measuring the fluid permeability and specific storage of a rock sample.
B. T. Ngwenya   +33 more
core   +1 more source

Patient‐Derived 3D Bioprinted Cardiac Organoid Constructs Reveal Key Pathological Features of Duchenne Muscular Dystrophy

open access: yesAdvanced Healthcare Materials, EarlyView.
Patient‐derived cardiac organoids reveal key features of Duchenne muscular dystrophy cardiomyopathy, including apoptosis, oxidative stress, calcium handling defects, and mechanical remodeling. By integrating organoids into alginate–gelatin bioprinted constructs, disease phenotypes are organized into scalable 3D cardiac tissues displaying extracellular ...
Vittoria Marini   +15 more
wiley   +1 more source

Evaluation of Tribological Property for Hydraulic Fluid by Roller on Disk Test

open access: yesTribology Online, 2015
The effects of energy-saving hydraulic fluids are confirmed by not only many actual hydraulic systems but also bench tests using hydraulic pump. We have studied some laboratory evaluation methods that are simpler than bench test using hydraulic pump.
Yukiko Naka
doaj   +1 more source

Overview of free-piston Stirling technology at the NASA Lewis Research Center [PDF]

open access: yes, 1985
An overview of the National Aeronautics and Space Administration (NASA) Lewis Research Center (Lewis) free-piston Stirling engine activities is presented.
Slaby, J. G.
core   +1 more source

Automated injection of slurry samples in flow-injection analysis [PDF]

open access: yes, 1995
Two types of injectors are described for introducing solid samples as slurries in flow analysis systems. A time-based and a volume-based injector based on multitube solenoid pinch valves were built, both can be characterized as hydrodynamic injectors ...
Bos, M.   +2 more
core   +2 more sources

Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review

open access: yesAdvanced Robotics Research, EarlyView.
This review explores the transformative role of multi‐material additive manufacturing (MMAM) in the development of soft robotic systems. It presents current techniques, materials, and design strategies that enable functionally graded and adaptive structures.
Ritik Raj   +2 more
wiley   +1 more source

Remaining Useful Life Prediction of the Concrete Piston Based on Probability Statistics and Data Driven

open access: yesApplied Sciences, 2021
This paper proposes a method on predicting the remaining useful life (RUL) of a concrete piston of a concrete pump truck based on probability statistics and data-driven approaches.
Jie Li   +4 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

Improved Direct Ink Writing of Liquid Metal Foams via Liquid Additives

open access: yesAdvanced Electronic Materials, EarlyView.
The ability to pattern liquid metal is useful for making soft electrical and thermal devices. Dispensing liquid metal from a nozzle naturally results in the formation of spheroidal droplets, making direct‐write printing challenging. Liquid metal foams containing pockets of air can extrude as filaments, albeit inconsistently.
Febby Krisnadi   +3 more
wiley   +1 more source

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