scholarly journals Interaction of a Fin Trailing Vortex with a Downstream Control Surface

2008 ◽  
Author(s):  
Steven Beresh ◽  
Justin Smith ◽  
John Henfling ◽  
Thomas Grasser ◽  
Russell Spillers
Keyword(s):  
Control Surface ◽  
Downstream Control

scholarly journals Interaction of a Fin Trailing Vortex with a Downstream Control Surface

2009 ◽  
Vol 46 (2) ◽  
pp. 318-328 ◽  
Author(s):  
Steven J. Beresh ◽  
Justin A. Smith ◽  
John F. Henfling ◽  
Thomas W. Grasser ◽  
Russell W. Spillers
Keyword(s):  
Control Surface ◽  
Downstream Control

Characterization of carbides in M50NiL

1991 ◽  
Vol 49 ◽  
pp. 606-607
Author(s):  
L. S. Lin ◽  
K. P. Gumz ◽  
A. V. Karg ◽  
C. C. Law
Keyword(s):  
Temperature Effects ◽  
Base Composition ◽  
Lattice Parameter ◽  
Control Surface ◽  
Carbide Formation ◽  
Particle Sizes ◽  
Low Carbon ◽  
Fee Structure ◽  
Heat Treated

Carbon and temperature effects on carbide formation in the carburized zone of M50NiL are of great importance because they can be used to control surface properties of bearings. A series of homogeneous alloys (with M50NiL as base composition) containing various levels of carbon in the range of 0.15% to 1.5% (in wt.%) and heat treated at temperatures between 650°C to 1100°C were selected for characterizations. Eleven samples were chosen for carbide characterization and chemical analysis and their identifications are listed in Table 1.Five different carbides consisting of M6C, M2C, M7C3 and M23C6 were found in all eleven samples examined as shown in Table 1. M6C carbides (with least carbon) were found to be the major carbide in low carbon alloys (<0.3% C) and their amounts decreased as the carbon content increased. In sample C (0.3% C), most particles (95%) encountered were M6C carbide with a particle sizes range between 0.05 to 0.25 um. The M6C carbide are enriched in both Mo and Fe and have a fee structure with lattice parameter a=1.105 nm (Figure 1).

Nonlinear response of airfoil section with control surface freeplay to gust loads

AIAA Journal ◽  
2000 ◽  
Vol 38 ◽  
pp. 1543-1557 ◽  
Author(s):  
Deman Tang ◽  
Denis Kholodar ◽  
Earl H. Dowell
Keyword(s):  
Nonlinear Response ◽  
Control Surface ◽  
Airfoil Section ◽  
Gust Loads

Behavior of airfoil with control surface freeplay for nonzero angles of attack

AIAA Journal ◽  
1999 ◽  
Vol 37 ◽  
pp. 651-653
Author(s):  
Denis B. Kholodar ◽  
Earl H. Dowell
Keyword(s):  
Control Surface

scholarly journals Bone Marrow Mesenchymal Stromal Cells on Silk Fibroin Scaffolds to Attenuate Polymicrobial Sepsis Induced by Cecal Ligation and Puncture

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1433
Author(s):  
Ok-Hyeon Kim ◽  
Jun-Hyung Park ◽  
Jong-In Son ◽  
Ok-Ja Yoon ◽  
Hyun-Jung Lee
Keyword(s):  
Bone Marrow ◽  
Cecal Ligation ◽  
Biological Properties ◽  
Pge2 Production ◽  
Polymicrobial Sepsis ◽  
Control Surface ◽  
Related Factors ◽  
Cox 2 ◽  
Anti Inflammatory

Suitable scaffolds with appropriate mechanical and biological properties can improve mesenchymal stromal cell (MSC) therapy. Because silk fibroins (SFs) are biocompatible materials, they were electrospun and applied as scaffolds for MSC therapy. Consequently, interferon (IFN)-primed human bone marrow MSCs on SF nanofibers were administered into a polymicrobial sepsis murine model. The IL-6 level gradually decreased from 40 ng/mL at 6 h after sepsis to 35 ng/mL at 24 h after sepsis. The IL-6 level was significantly low as 5 ng/mL in primed MSCs on SF nanofibers, and 15 ng/mL in primed MSCs on the control surface. In contrast to the acute response, inflammation-related factors, including HO-1 and COX-2 in chronic liver tissue, were effectively inhibited by MSCs on both SF nanofibers and the control surface at the 5-day mark after sepsis. An in vitro study indicated that the anti-inflammatory function of MSCs on SF nanofibers was mediated through enhanced COX-2-PGE2 production, as indomethacin completely abrogated PGE2 production and decreased the survival rate of septic mice. Thus, SF nanofiber scaffolds potentiated the anti-inflammatory and immunomodulatory functions of MSCs, and were beneficial as a culture platform for the cell therapy of inflammatory disorders.

Sign in / Sign up

Export Citation Format

Share Document