The simulation of liquid-liquid extraction columns has been of high interest for the last four decades. The well-known procedure is to solve drop-population balances. This approach reaches its limits if the additional influences like reactions shall be included in the simulation and can be solved only with extremely high mathematical effort. ReDrop (Representative Drops) is an alternative way t...

Active Queue Management is a convenient way to administer the network load without increasing the complexity of end-user protocols. Current AQM techniques work in two ways; the router either drops some of its packets with a given probability or creates different queues with corresponding priorities. Head-toTail introduces a novel AQM approach: the packet rearrange scheme. Instead of dropping, H...

Background. We report a patient who developed corneal epithelial disorder repeatedly after changing the prescription from Xalatan eye drops (Pfizer Inc.) to Latanoprost eye drops (Kaken Pharmaceutical Co., Ltd.), both containing 0.005% latanoprost. Case Report. An 88-year-old male with glaucoma had been treated with Timoptol eye drops and Xalatan eye drops for a few years. While he stayed in a ...

The first algorithm for Emulsion Stability Simulations (ESS) was presented at the V Conferencia Iberoamericana sobre Equilibrio de Fases y Diseño de Procesos [Luis, J.; García-Sucre, M.; Urbina-Villalba, G. Brownian Dynamics Simulation of Emulsion Stability In: Equifase 99. Libro de Actas, 1(st) Ed., Tojo J., Arce, A., Eds.; Solucion's: Vigo, Spain, 1999; Volume 2, pp. 364-369]. The former vers...

We present a polynomial-time 9/7-approximation algorithm for the graphic TSP for cubic graphs, which improves the previously best approximation factor of 1.3 for 2-connected cubic graphs and drops the requirement of 2-connectivity at the same time. To design our algorithm, we prove that every simple 2-connected cubic n-vertex graph contains a spanning closed walk of length at most 9n/7− 1, and ...

Currently, one of the major problems in explicit state model checking is state space explosion; the number of states in modern software systems is growing so rapidly that even the most advanced computers no longer provide enough power to compute a complete state space. Kastenberg and Rensink [1] have proposed a new algorithm to reduce state space. However there is no implementation and thus no ...

Concept drift occurs when a target concept changes over time. I present a new method for learning shifting target concepts during concept drift. The method, called Concept Drift Committee (CDC), uses a weighted committee of hypotheses that votes on the current classification. When a committee member’s voting record drops below a minimal threshold, the member is forced to retire. A new committee...

Skilled fielders were filmed as they ran backward or forward to catch balls projected toward them from a bowling machine 45 m away. They ran at a speed that kept the acceleration of the tangent of the angle of elevation of gaze to the ball at 0. This algorithm does not tell fielders where or when the ball will land, but it ensures that they run through the place where the ball drops to catch he...

In the Tropics more small drops and less large drops were found in oceanic precipitation than in continental precipitation at the given reflectivity. Similarly, more small drops and less large drops were found in remnants of a tropical cyclone than in frontal precipitation in mid-latitude site at the same reflectivity. The presence of small drops was higher in deep convective regime than in str...