Nulling the birefringence effect of a light signal traveling through single-mode fiber when behaves as an elliptical retarder can be achieved by winding double-helix. We present resume theory and procedures developed at CICESE to demonstrate this polarization control in systems.

Homeostatic mechanisms are essential for the protection and adaptation of organisms in a changing and challenging environment. Previously, we have described molecular mechanisms that lead to robust homeostasis/adaptation under inflow or outflow perturbations. Here we report that harmonic oscillations occur in models of such homeostatic controllers and that a close relationship exists between th...

A dynamic water allocation framework for a multipurpose, single reservoir is formulated to utilize climate information based reservoir inflow forecasts to quantify the reliability of use for the given demand. Based on the semi-parametric approach of De Souza and Lall [2003], 12 months lead retrospective reservoir inflow forecasts were developed for the period July 1990June 2000 for the Oros res...

Water circulation in storage tanks significantly impacts water quality distribution networks since old tends to have low residual chlorine concentrations that are insufficient neutralize microbial regeneration. Their large capacity and long residence times result uneven mixing, which can accelerate the disinfectant decay formation of potentially carcinogenic disinfection by-products. The phenom...

interventional treatment of ruptured intracranial aneurysms in patients with subarachnoid hemorrhage is a standard therapy based on evidence from randomized trials. simple coiling is still used for most of the cases. modern coil technology provides a wide variety of complex shaped coils for faster procedures and reliable dense packing. the assistance of stents and balloons widens the indication...