New method decreasing drive voltage of torsion beam actuator micromechanical optical switches

2003 ◽  
Author(s):  
Wei Dong ◽  
Xindong Zhang ◽  
Caixia Liu ◽  
Cuiping Jia ◽  
Jianxuan Pan ◽  
...  
Author(s):  
R. Krähenbühl ◽  
M. M. Howerton ◽  
J. Dubinger ◽  
A. S. Greenblatt

2011 ◽  
Vol 228-229 ◽  
pp. 1075-1079 ◽  
Author(s):  
Mei Yang ◽  
Li Ya Hou ◽  
Wei Yi Zhang

In tissue engineering, paraffin spheres are often used as porogen in solvent casting/particulate leaching technology to prepare scaffold. Shape, size of paraffin spheres is very important to connectivity of scaffold. Emulsification is commonly used to prepare paraffin spheres, in which the paraffin size can not be controlled well. In this paper, a new method based on digitalization of microfluids technology is used to produce paraffin spheres. In this method, relationship between drive voltage U and diameter of spheres, and relationship between diameter of nozzle d and diameter of spheres are studied. The two parameters have great effect on the shape, size of paraffin spheres. The shape, size of paraffin spheres can be adjusted by controlling the drive voltage U and diameter of nozzle d. The results show that the method based on digitalization of microfluids technology is simple, highly controllability.


Author(s):  
C. C. Clawson ◽  
L. W. Anderson ◽  
R. A. Good

Investigations which require electron microscope examination of a few specific areas of non-homogeneous tissues make random sampling of small blocks an inefficient and unrewarding procedure. Therefore, several investigators have devised methods which allow obtaining sample blocks for electron microscopy from region of tissue previously identified by light microscopy of present here techniques which make possible: 1) sampling tissue for electron microscopy from selected areas previously identified by light microscopy of relatively large pieces of tissue; 2) dehydration and embedding large numbers of individually identified blocks while keeping each one separate; 3) a new method of maintaining specific orientation of blocks during embedding; 4) special light microscopic staining or fluorescent procedures and electron microscopy on immediately adjacent small areas of tissue.


1960 ◽  
Vol 23 ◽  
pp. 227-232 ◽  
Author(s):  
P WEST ◽  
G LYLES
Keyword(s):  

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