-This paper discusses and reviews a fundamental issue in cellular manufacturing--cell formation. This problem is of strategic and operational importance in that it affects the fundamental structure and the overall layout of a cellular manufacturing system. We first provide a comprehensive mathematical formulation of the cell formation problem and then propose a methodology-based classification ...

this paper is concerned with the problem of synchronization for complex dynamic networks with state and coupling time-delays. therefore, larger class and more complicated complex dynamic networks can be considered for the synchronization problem. based on the lyapunov-krasovskii functional, a delay-independent criterion is obtained and formulated in the form of linear matrix inequalities (lmis)...

objective: vitrification has been shown as one of the most effective methods of cryopreservation for mammalian embryos. however, there is no consensus which stage of embryonic development is the most appropriate for vitrification with subsequent maximal development after thawing. this study was carried out to explore and compare the effect(s) of vitrification on mouse 2-cell, 4-cell, 8-cell, mo...

Abstract Streamers and pseudostreamers structure the corona at largest scales, as seen in both eclipse coronagraph white-light images. Their inverted-goblet appearance encloses broad coronal loops Sun tapers to a narrow radial stalk away from star. The streamer associated with global solar dipole magnetic field is long-lived, predominantly contains single arcade of nested within it, separates o...