Results 41 to 50 of about 54,946 (273)

A Data Driven Review of In Vitro Electrical and Mechanical Stimulation for Post‐Acute Phase Wound Healing

open access: yesAdvanced Healthcare Materials, EarlyView.
This review examines how in vitro electrical and mechanical stimulation modulates wound healing in fibroblasts and keratinocytes. Analyzing over 560 experimental data points, we relate stimulation parameters to proliferation and migration outcomes, evaluate platform designs, and highlight the need for multi‐parameter optimization to advance targeted ...
Matthew K. Burgess   +3 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

Negative feedback system reduces pump oscillations [PDF]

open access: yes, 1967
External negative feedback system counteracts low frequency oscillations in rocket engine propellant pumps.
Rosenmann, W.
core   +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

Fully Wireless and Flexible Valves for Multiplexed and Prolonged Intravesical Liquid Release

open access: yesAdvanced Healthcare Materials, EarlyView.
A fundamental mechanism for the simultaneous control of multiple magnetic valves is reported in a miniature soft robotic patch for intravesical drug delivery, enabling fully wireless and programmable liquid release. Integrated with a bioadhesive interface and induction‐coupling‐based liquid volume sensing, the soft robotic patch is promising to enable ...
Boyang Xiao   +5 more
wiley   +1 more source

Thermal-powered reciprocating pump [PDF]

open access: yes, 1972
Waste heat from radioisotope thermal generators in spacecraft is transported to keep instruments warm by two-cylinder reciprocating pump powered by energy from warm heat exchange fluid. Each cylinder has thermally nonconductive piston, heat exchange coil,
Sabelman, E. E.
core   +1 more source

Hybrid Magnetoactive Soft Elastomers: Material Development Toward Application in Diaphragm Pumps

open access: yesAdvanced Materials Technologies, EarlyView.
Hybrid magnetoactive soft elastomeric membranes are developed by combining two different types of magnetic particles. The membranes exhibit distinct mechanical, magnetic and thermal properties owing to the unique characteristics of the two magnetic particles.
Somashree Mondal   +4 more
wiley   +1 more source

Dynamic characteristic analysis of the piston pump with the valve plate outer dead center damage

open access: yesAIP Advances
The piston pump is one of the key components of the hydraulic system. The valve plate, one of the key friction pairs of piston pumps, contributes most to the dynamical stability and operational reliability of the pump.
Zhaohui Bai   +4 more
doaj   +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

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

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