Results 81 to 90 of about 812,519 (313)

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Journal bearing lubrication monitoring based on spectrum cluster analysis of vibration signals

open access: yes, 2015
Journal bearings are critical components for many important machines. Lubrication analysis techniques are often not timely and cost effective for monitoring journal bearings.
Gu, Fengshou   +4 more
core  

A Versatile Microfluidic Extrusion‐Based Hydrogel Platform for Self‐Organization and Long‐Term Maintenance of Engineered 3D Lymphatic Endothelium

open access: yesAdvanced Healthcare Materials, EarlyView.
Microfluidic coaxial extrusion generates size‐controlled 3D lymphatic tubes from primary human dermal lymphatic endothelial cells in a defined four‐component matrix. These engineered vessels self‐organize into stable lymphatic endothelium, maintain selective macromolecular permeability for 30 days, and enable direct comparison with blood endothelial ...
Elsa Mazari‐Arrighi   +8 more
wiley   +1 more source

The Fluid Pivot Journal Bearing

open access: yes, 1977
A promising new type of tilting pad journal bearing—the Fluid Pivot journal bearing—is described. The long development history of this bearing is summarized, showing how the design evolved through research and testing.
L. W. Hollingsworth, D. V. Nelson
core   +1 more source

Standardized Effect Measures Informing Next‐Generation Strategies for Mechanical Stimulation in Cartilage Tissue Engineering

open access: yesAdvanced Healthcare Materials, EarlyView.
This systematic review quantitatively compares conventional mechanical stimulation strategies in cartilage tissue engineering across 85 heterogeneous in vitro studies. Applying standardized effect measures, meta‐analysis reveals that combined compression and shear loading optimally promotes cartilage matrix development.
Jiaqi K. Shen   +7 more
wiley   +1 more source

Experimental and Theoretical Investigation for Shaft Journal Bearing Lubrication Performance [PDF]

open access: yesPort Said Engineering Research Journal
Hydrodynamic lubrication is definitely one of the foremost factors upon which the load carrying capacity within journal bearing mainly rely. Therefore, maintaining journal bearing lubrication away from boundary and transient lubrication regions is so ...
Nader Abdul Rahman   +3 more
doaj   +1 more source

The application of spectral kurtosis on Acoustic Emission and vibrations from a defective bearing [PDF]

open access: yes, 2011
The application of Acoustic Emission (AE) technology for machine health monitoring is gaining ground as power tool for health diagnostic of rolling element bearing.
Mba, David   +7 more
core   +1 more source

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