Amphiphilic and segmented polyurethanes based on poly(ε-caprolactone)diol and poly(2-ethyl-2-oxazoline)diol: Synthesis, properties, and a preliminary performance study of the 3D printing

In recent years, 3D printing has received increasing attention from researchers. This technology overcomes the limitations of traditional technologies by printing precise and personalized scaffold with arbitrary shapes, pore structures, and porosities for the applications in various tissues. The cellulose nanocrystal (CNC) is extracted from Humulus Japonicus (HJS) and mixed with poly(ε-caprolactone) (PCL) to prepare a series of CNC/PCL composites for printing. Based on the analysis of the physical and chemical properties of the series of the CNC/PCL composites, an optimal mass ratio of CNC to PCL was obtained. The Solidworks was used to simulate the stretching and compression process of the scaffolds with three different patterns under an external force. The flow of nutrient solution in the scaffolds with different patterns was simulated by ANSYS FLUENT, and then a new optimization scaffold pattern with a concave hexagon shape was advised based on the simulation results. Collectively, the mechanical test results of the material and scaffold confirmed that the optimal filling amount of the CNC was 5%, and the scaffold pattern with concave hexagon shape exhibited better mechanical properties and suitable for the transport of cells and nutrients, which is expected to be more widely used in 3D printing.

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The preliminary performance study of the 3D printing of a tricalcium phosphate scaffold for the loading of sustained release anti-tuberculosis drugs

Journal of Materials Science ◽

10.1007/s10853-014-8776-0 ◽

2014 ◽

Vol 50 (5) ◽

pp. 2138-2147 ◽

Cited By ~ 9

Author(s):

Jing Yuan ◽

Ping Zhen ◽

Hongbin Zhao ◽

Keming Chen ◽

Xusheng Li ◽

...

Keyword(s):

3D Printing ◽

Sustained Release ◽

Tricalcium Phosphate ◽

Performance Study

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Review for "Revisiting smart antenna array design with multiple interferers using basic adaptive beamforming algorithms: Comparative performance study with testbed results"

10.1002/eng2.12295/v1/review3 ◽

2020 ◽

Author(s):

A Ashraf A.M. Khalaf

Keyword(s):

Antenna Array ◽

Smart Antenna ◽

Adaptive Beamforming ◽

Performance Study ◽

Comparative Performance ◽

Array Design ◽

Smart Antenna Array

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Replication of the Superstition and Performance Study by

Social Psychology ◽

10.1027/1864-9335/a000190 ◽

2014 ◽

Vol 45 (3) ◽

pp. 239-245 ◽

Cited By ~ 18

Author(s):

Robert J. Calin-Jageman ◽

Tracy L. Caldwell

Keyword(s):

Task Difficulty ◽

Statistical Power ◽

Meta Analysis ◽

A Priori ◽

Significant Heterogeneity ◽

Performance Study ◽

Improve Performance ◽

Research Designs ◽

Series Of Experiments ◽

And Performance

A recent series of experiments suggests that fostering superstitions can substantially improve performance on a variety of motor and cognitive tasks ( Damisch, Stoberock, & Mussweiler, 2010 ). We conducted two high-powered and precise replications of one of these experiments, examining if telling participants they had a lucky golf ball could improve their performance on a 10-shot golf task relative to controls. We found that the effect of superstition on performance is elusive: Participants told they had a lucky ball performed almost identically to controls. Our failure to replicate the target study was not due to lack of impact, lack of statistical power, differences in task difficulty, nor differences in participant belief in luck. A meta-analysis indicates significant heterogeneity in the effect of superstition on performance. This could be due to an unknown moderator, but no effect was observed among the studies with the strongest research designs (e.g., high power, a priori sampling plan).

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