A strongly polynomial algorithm is given for the generalized flow maximization problem. It uses a new variant of the scaling technique, called continuous scaling. The main measure of progress is that within a strongly polynomial number of steps, an arc can be identified that must be tight in every dual optimal solution, and thus can be contracted. The full version is available on arXiv:1307.680...

We prove a regularity result for the anisotropic elasticity equation Pu := div ` C · ∇u) = f , with mixed (displacement and traction) boundary conditions Lk on a curved polyhedral domain Ω ⊂ R 3 in weighted Sobolev spaces Ka (Ω), for which the weight given by the distance to the set of edges. In particular, we show that there is no loss of Ka –regularity. Our curved polyhedral domains are allow...

Starting from the hypothesis that the tubulin dimer is a conformationally bistable molecule fluctuating between a curved and a straight configuration at room temperature we develop a model for polymorphic dynamics of the microtubule lattice. We show that tubulin bistability consistently explains unusual dynamic fluctuations, the apparent length-stiffness relation of grafted microtubules and the...

We present a transformation optics approach for molding the light flow at the deep-subwavelength scale, using metamaterials with uniquely designed dispersion. By conformal transformation of the electromagnetic space, we develop a methodology for realizing subwavelength ray optics with curved ray trajectories. This enables deep-subwavelength-scale beams to flow through two- or three-dimensional ...

in this study, a laboratory scale continuous plug flow fluidized bed dryer was designed and constructed. a backward-curved centrifugal fan with a 4 kw electromotor was selected based on the maximum pressure drop in the minimum fluidization state and the ability to produce the velocity required for fluidization of the most granular agricultural materials. the fluidization chamber was a rectangul...