Results 81 to 90 of about 29,048 (184)

On the torque and wear behavior of selected thin film MOS2 lubricated gimbal bearings [PDF]

open access: yes
During the thermal vacuum test phase of the GOES 7 spacecraft, the primary scan mirror system exhibited unacceptably high drive friction. The observed friction was found to correlate with small misalignments in the mirror structure and unavoidable loads ...
Bohner, John J., Conley, Peter L.
core   +1 more source

On the front shape of an inertial granular flow down a rough incline

open access: yes, 2015
Granular material flowing on complex topographies are ubiquitous in industrial and geophysical situations. In this paper, we study the small-scale model of a granular layer flowing on a rough incline.
Deboeuf, S, Lagrée, P. -Y, Saingier, G
core   +3 more sources

An Alternative Micro-Milling Fabrication Process for Rapid and Low-Cost Microfluidics

open access: yesMicromachines
Microfluidics is an important technology for the biomedical industry and is often utilised in our daily lives. Recent advances in micro-milling technology have allowed for rapid fabrication of smaller and more complex structures, at lower costs, making ...
Martin Christopher Allen   +2 more
doaj   +1 more source

Anorectal profilometry with the microtransducer

open access: yesJournal of British Surgery, 1984
Abstract The reproducibility of anal sphincter manometry has been evaluated in 17 patients with a continuous pull-through technique using a miniature transducer mounted on a 2mm diameter Dacron catheter. Comparison was made with a conventional station pull-through technique using a 4mm diameter waterfilled microballoon connected to an ...
J S, Varma, A N, Smith
openaire   +2 more sources

Novel types of anti-ecloud surfaces

open access: yes, 2013
In high power RF devices for space, secondary electron emission appears as the main parameter governing the multipactor effect and as well as the e-cloud in large accelerators.
Aguilera, L.   +11 more
core   +1 more source

The Influence of the Wavelength of Laser Light on the Non-Contact Measurement of the Roughness of Shiny Cut Surfaces on Stainless Steel A304 Material

open access: yesApplied Sciences
The article is focused on the study of the effect of laser light with three wavelengths used in a laser profilometer for the measurement of selected roughness parameters of the shiny surface of stainless steel A304 material.
Juraj Ružbarský
doaj   +1 more source

Critical behavior in graphene: spinodal instability at room temperature

open access: yes, 2018
At a critical spinodal in-plane stress $\tau_{C}$ a planar crystalline graphene layer becomes mechanically unstable. We present a model of the critical behavior of the membrane area near $\tau_{C}$ and show that it is in complete agreement with path ...
Herrero, C. P., Ramirez, R.
core   +1 more source

Qualitative Assessment of Microalgae–Bacteria Biofilm Development on K5 Carriers: Photoheterotrophic Growth in Wastewater

open access: yesMicroorganisms
Wastewater (WW) treatment using biofilms harboring bacteria and microalgae is considered a promising polishing solution to improve current treatment technologies present in wastewater treatment plants (WWTPs), but their interaction in a sessile community
Henrique Sousa   +3 more
doaj   +1 more source

Phase Sampling Profilometry

open access: yes, 2020
Structured light 3D surface imaging is a school of techniques in which structured light patterns are used for measuring the depth map of the object. Among all the designed structured light patterns, phase pattern has become most popular because of its high resolution and high accuracy.
openaire   +2 more sources

Analysis of surfaces from the LDEF A0114, phase 2 [PDF]

open access: yes
During the reporting period, work continued on profilometry measurements of eroded and corroded sample surfaces, optical transmission measurements, analysis of the pinhole camera, and x-ray photoelectron spectroscopy (XPS) analysis of some samples. Among
Gregory, John C.
core   +1 more source

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