scholarly journals Dynamic Shear Flow of Electro-Rheological Fluids Between Two Rotating Parallel Disks

2005 ◽  
Vol 2005 (6) ◽  
pp. 612-617 ◽  
Author(s):  
Masami Nakano ◽  
Kiyotaka Yamashita ◽  
Shinya Koizumi ◽  
Ryosuke Keta
Keyword(s):  
Shear Flow ◽  
Dynamic Shear ◽  
Parallel Disks

Tracings of Behavior of Myoblasts Cultured Under Couette Type of Shear Flow Between Parallel Disks

2021 ◽  
Author(s):  
Shigehiro Hashimoto ◽  
Hiroki Yonezawa
Keyword(s):  
Shear Stress ◽  
Shear Flow ◽  
Rotating Disk ◽  
Time Lapse ◽  
Mechanical Stimuli ◽  
Parallel Disks ◽  
Before And After ◽  
A Cell

Abstract A cell deforms and migrates on the scaffold under mechanical stimuli in vivo. In this study, a cell with division during shear stress stimulation has been observed in vitro. Before and after division, both migration and deformation of each cell were analyzed. To make a Couette-type shear flow, the medium was sandwiched between parallel disks (the lower stationary culture-disc and the upper rotating disk) with a constant gap. The wall shear stress (1.5 Pa < τ < 2 Pa) on the surface of the lower culture plate was controlled by the rotational speed of the upper disc. Myoblasts (C2C12: mouse myoblast cell line) were used in the test. After cultivation without flow for 24 hours for adhesion of the cells to the lower disk, constant τ was applied to the cells in the incubator for 7 days. The behavior of each cell during shear was tracked by time-lapse images observed by an inverted phase contrast microscope placed in the incubator. Experimental results show that each cell tends to divide after higher activities: deformation and migration. The tendency is remarkable at the shear stress of 1.5 Pa.

The Relationship between Feed Rate and Point Angle of a Twist Drill Bit When Drilling Bone

1980 ◽  
Vol 9 (3) ◽  
pp. 137-142
Author(s):  
J K Davis ◽  
C J Jackson ◽  
I Scott
Keyword(s):  
Shear Flow ◽  
Feed Rate ◽  
Thermal Effects ◽  
Orthogonal Cutting ◽  
Human Bone ◽  
Bovine Bone ◽  
Drill Bit ◽  
Twist Drill ◽  
Dynamic Shear ◽  
The Relationship

The work described in this paper was carried out in two parts. The first part consisted of evaluating the machining constants and the dynamic shear flow strengths of bovine bone from orthogonal cutting and drilling tests. The second part of the work arose from investigation into the thermal effects of drilling human bone during which certain trends were observed when comparing feed rate and point angle for fixed values of thrust. Some measure of agreement was found between these two independent pieces of work. Bera and Bhattacharrya's analytical equation for the thrust produced when drilling metals has been modified for anisotropic materials such as bone.

Rheology and Dynamics of Water-in-Oil Emulsions under Steady and Dynamic Shear Flow

1997 ◽  
Vol 185 (2) ◽  
pp. 297-305 ◽  
Author(s):  
Hyang Mok Lee ◽  
Jin Woo Lee ◽  
O Ok Park
Keyword(s):  
Shear Flow ◽  
Dynamic Shear ◽  
Oil Emulsions
Sign in / Sign up

Export Citation Format

Share Document