Results 61 to 70 of about 39,796 (305)

Pistons modeled by potentials

open access: yes, 2011
In this article we consider a piston modelled by a potential in the presence of extra dimensions. We analyze the functional determinant and the Casimir effect for this configuration.
C Bender   +13 more
core   +1 more source

On Casimir Pistons [PDF]

open access: yes, 2009
In this paper we study the Casimir force for a piston configuration in $R^3$ with one dimension being slightly curved and the other two infinite. We work for two different cases with this setup.
Casimir H.   +6 more
core   +2 more sources

Plasmonic Nanomachines: Creating Local Potential Gradients and Motions

open access: yesAdvanced Materials, EarlyView.
Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim   +3 more
wiley   +1 more source

The testing and optimization of a bio-inspired textured piston for the BW-250 mud pump

open access: yesPolymer Testing
To reduce the friction, wear, and temperature of the piston-cylinder liner friction pair, we designed and processed 27 kinds of bio-inspired textured pistons with cylindrical pits. Based on the experimental optimization design method, friction test, wear
Tianyu Gao   +6 more
doaj   +1 more source

A multidegree-of-freedom vibrational apparatus [PDF]

open access: yes, 1973
Apparatus uses prestressed cables to support vibrational table. Cables are durable, do not require frequent servicing, and provide increased safety. Because much weight rests on these cables, vibration actuating pistons can provide longer service.
Kerley, J. J., Jr., Schaller, N. C.
core   +1 more source

Using a Zero‐Strain Reference Electrode to Distinguish Anode and Cathode Volume Changes in a Solid‐State Battery

open access: yesAdvanced Materials Interfaces, EarlyView.
Volume changes of a solid‐state battery cell are separated into the individual contributions of anode and cathode. Simultaneously determining the “reaction volumes” of both electrodes requires a reference electrode with a pressure‐independent potential.
Mervyn Soans   +5 more
wiley   +1 more source

Apparatus for establishing flow of a fluid mass having a known velocity [PDF]

open access: yes, 1974
An apparatus for establishing a flow of fluid mass, such as gas, having a known velocity is introduced. The apparatus is characterized by an hermetically sealed chamber conforming to a closed-loop configuration and including a throat and a plurality of ...
Bate, E. R., Jr.   +3 more
core   +1 more source

Coupled Chemical and Mechanical Control of the Pore Size in Carbon Honeycomb Membranes for Water Desalination

open access: yesAdvanced Materials Interfaces, EarlyView.
ABSTRACT The advancement of 3D carbon nanostructures for next‐generation desalination membranes is hindered by limited control of the pore size to ensure effective salt rejection. Chemical functionalization and mechanical modification are known approaches to address the problem, while the combined effect of the two approaches remains unexplored.
Aleksandr S. Voronin   +2 more
wiley   +1 more source

The Influence of the Number of Pistons on the Pressure Pulsations and Vibration of the Axial Piston Pump Housing

open access: yesApplied Sciences
The number of pistons in axial piston pumps plays a significant role in determining the performance characteristics of the pump. While increasing the number of pistons can improve capacity, stability, and flow, it also requires careful consideration of ...
Milan Radosavljević   +5 more
doaj   +1 more source

Gas-to-hydraulic power converter [PDF]

open access: yes, 1982
A gas piston driven hydraulic piston pump is described in which the gas cycle is of high efficiency by injecting the gas in slugs at the beginning of each power stroke. The hydraulic piston is disposed to operate inside the as piston, and the two pistons,
Galloway, C. W.
core   +1 more source

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