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This paper was submitted for pu ication in the open literaturr 1 l e a s y~o n t h s prior to the issuance date of hls Microcard. Since the U.S.A.E.C. has no evidence that it has been published, the paper i s being distributed in Microcard form a s a preprint.

SLIC is an alternating-direction method for the geometric approximation of fluid interfaces. It may be used in one, two, or three space dimensions, and it is characterized by the following features: (1) Fluid surfaces are represented locally for each mixed-fluid zone, and these surfaces are defined as a composition of one space dimensional components, one for each coordinate direction. (2) These onedimensional components are composed entirely of straight lines, either perpendicular to or parallel to that coordinate direction. (3) The one-dimensional surface approximations for a mixed fluid cell are completely determined by testing whether or not the various fluids in the mixed cell are present or absent in the zone just to the left and to the right in t h e coordinate direction under consideration.

Abstract. The 'Ptosis' is a phenomenon that eyelid droops and cannot lifts on normal level. If somebody has the ptosis, they use the frontalis muscle in forehead when the eyes open. In this paper, the frontalis muscle's EMG was measured about stare angle. People who have the ptosis were confirmed that they use the frontalis muscle more than normal people. Also, this paper verified that the ptosis is concerned movement of muscles around the eyes. Therefore, this paper proposes a system to quantify the ptosis as EMG signal level of the frontalis muscle.