To free or not to free?

Unmanned Flight: To Be Free or Not To Be Free? A complexity based approach

This paper assesses the feasibility of organizing unmanned aviation as free flight. We do this by estimating the frequency of occurrence of large de-confliction problems. Statistics of these frequencies are measures of air traffic complexity appropriate for unmanned air traffic management. These complexity measures increase with air traffic density. Data suggests as many as 100,000 unmanned fli...

Unmanned Aviation: To Be Free or Not To Be Free? A complexity based approach

This paper assesses the feasibility of organizing unmanned aviation as free flight. We do this by estimating the frequency of occurrence of large de-confliction problems. Statistics of these frequencies are measures of air traffic complexity appropriate for unmanned air traffic management. These complexity measures increase with air traffic density. Data suggests as many as 100,000 unmanned fli...

Folic Acid Supplementation: to Advise or not to Advise?

Temporal Constraints in Planning: Free or not Free ?

relating those decisional variables, thus making it possible to apply classical constraints propagation used in planning. Those meta-structures exist together with the classical time-points graph structures that are necessary at execution time, as we need to hold all the events (beginning and ending of tasks, instantaneous events). Lastly, it is important to notice that the different CSP struct...

A Solvent Free Route to the Synthesis of Diaryl Sulfoxides

The solvent free route for the synthesis of diaryl sulfoxides from arenes and thionyl chloride in the presence of Lewis acids such as aluminum chloride and ferric chloride on silica gel are described.