Frames with a large minimum angle between any two distinct frame vectors are desirable in many present day applications. For unit norm frame, the absolute value of cosine is also known as coherence. Two frames equivalent if one can be obtained from other via left action an invertible linear operator. Frame angles change under Most existing works solve different optimization problems to find opt...

The psychophysical phenomenon called ventriloquism effect describes a possibly occurring influence of a visual stimulus on the judgment of a sound source’s perceived position. The term minimum audible angle usually denotes the just distinguishable horizontal angular deviation between two sound sources. It depends on the direction of the sound sources relative to the listener’s head, the conside...

An algorithm is proposed to calculate the minimum energy path (MEP). The algorithm is based on a variational formulation in which the MEP is characterized as the curve minimizing a certain functional. The algorithm performs this minimization using a preconditioned steepest-descent scheme with a reparametrization step to enforce a constraint on the curve parametrization.

Abstract The cardioid crank is a planetary mechanism that generates line. It with varying length and speed moves along the used to replace of rocker mechanism, its approximate uniform motion obtained. kinematic analysis method studied in this paper. calculating for limit position oscillating angle time ratio guide bar are given. Finally, conditions synthesis put forward accordance or oscillate ...

BACKGROUND The Moria single-use adjustable depth trephine is a device that allows a goal trephination depth to be set prior to the surgical procedure. METHODS Eleven fresh human cadaveric eyes were trephined using 8.0 mm Moria single-use adjustable vacuum trephines. Prior to trephination, the average corneal pachymetry in the peripheral 7-10 mm range was obtained using anterior segment optica...