On-line computer optimization chemostat productivity

Computer Productivity Initiative

Off-Line Grinding Optimization with a Micro-Computer

conputer pror,rae1 descrihed for practical optinization plun?;e grindin>; on steels. Tl1e program based on a strategy desiv,ned to o;Hi!'1ize both the grinding and dress "~nr, <Jara!'1eters maxil'1um metal removal rate, to constraints of surface finish and burning of the Forkpiece. The operates with a desktop micro-computer. performin?: the optimization, the user inputs the present grinding dre...

On-line Network Optimization Problems

We survey results on online versions of the standard network optimization problems, including the minimum spanning tree problem, the minimum Steiner tree problem, the weighted and unweighted matching problems, and the traveling salesman problem. The goal in these problems is to maintain, with minimal changes, a low cost subgraph of some type in a dynamically changing network.

Optimization of the separation of two species in a chemostat

In this work, we study a two species chemostat model with one limiting substrate, and our aim is to optimize the selection of the species of interest. More precisely, the objective is to find an optimal feeding strategy in order to reach in minimal time a target where the concentration of the first species is significantly larger than the concentration of the other one. Thanks to the Pontryagin...

The Impact of Computer Processor Speed on End-User Productivity

With each new improvement, the power, speed and capabilities of the computer have increased, as has the demand for computing power. Some managers have questioned the necessity of continuously upgrading computing technology when its efficient use is dictated more by the speed of the user than by the speed of the processor. These observations have led to the questioning of the value that continue...