scholarly journals Development of Probe Scan Mechanism for Echography using Pneumatic Actuators and Its Estimation Control in Contact Force on Body Surface

2010 ◽  
Vol 28 (7) ◽  
pp. 792-801 ◽  
Author(s):  
Koichi Ando ◽  
Shun Saito ◽  
Yusuke Aoki ◽  
Ken'ichi Ozawa ◽  
Kohji Masuda
Keyword(s):  
Contact Force ◽  
Body Surface ◽  
Pneumatic Actuators

scholarly journals Development of Tele-echography Interface Considering Contact Force of Ultrasound Probe to Body Surface

2008 ◽  
Vol 44 (11) ◽  
pp. 878-885 ◽  
Author(s):  
Tomohiro HORIGUCHI ◽  
Kensuke OOKOMORI ◽  
Hiroki WATANABE ◽  
Kohji MASUDA
Keyword(s):  
Contact Force ◽  
Body Surface ◽  
Ultrasound Probe

Three-Dimensional Reconstruction of Native Androctonus Australis Hemocyanin

1990 ◽  
Vol 48 (1) ◽  
pp. 452-453
Author(s):  
Nicolas Boisset ◽  
Jean-Christophe Taveau ◽  
Jean Lamy ◽  
Terence Wagenknecht ◽  
Michael Radermacher ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Solid Body ◽  
Body Surface ◽  
Three Dimensional ◽  
Staining Technique ◽  
Three Dimensional Reconstruction ◽  
Dimensional Reconstruction ◽  
View Reconstruction ◽  
Surface Representations ◽  
Top View

Hemocyanin, the respiratory pigment of the scorpion Androctonus australis is composed of 24 kidney shaped subunits. A model of architecture supported by many indirect arguments has been deduced from electron microscopy (EM) and immuno-EM. To ascertain, the disposition of the subunits within the oligomer, the 24mer was submitted to three-dimensional reconstruction by the method of single-exposure random-conical tilt series.A sample of native hemocyanin, prepared with the double layer negative staining technique, was observed by transmisson electron microscopy under low-dose conditions. Six 3D-reconstructions were carried out indenpendently from top, side and 45°views. The results are composed of solid-body surface representations, and slices extracted from the reconstruction volume.The main two characters of the molecule previously reported by Van Heel and Frank, were constantly found in the solid-body surface representations. These features are the presence of two different faces called flip and flop and a rocking of the molecule around an axis passing through diagonnally opposed hexamers. Furthermore, in the solid-body surface of the top view reconstruction, the positions and orientations of the bridges connecting the half molecules were found in excellent agreement with those predicted by the model.

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