Recognizing that allowing variability in scheduled flight departure times can result in improved flight connection opportunities and a more cost effective fleet assignment, we present a generalized fleet assignment model for simultaneously assigning aircraft types to flights and scheduling flight departures. Our model, a simple variant of basic fleet assignment models, assigns a time window to ...

Electric vehicles (EVs) have great potential as a modern mobility concept. Electricity already relies on a broad infracstructure and is available anywhere in developed countries. Furthermore, EVs are emmission-free which makes them the preferable form of individual transportation in urban areas where air pollution is often alarmingly high. However, operating EVs has several drawbacks compared t...

The fleet assignment model (FAM) for an airline assigns fleet types to the set of flight legs that satisfies a variety of constraints and minimizes the cost of the assignment. A through connection at a station is a connection between an arrival flight and a departure flight at the station, both of which have the same fleet type assigned to them that ensures that the same plane flies both legs. ...

The categorical theory of closure operators is used to characterize the epimorphisms in certain categories of separated fuzzy topological spaces (in the sense of Lowen). These include the 0-T0-spaces of Wuyts and Lowen; the FTS-spaces of Ghanim, Kerre and Mashhour; and the α-T2-spaces of Rodabaugh.

Full model overview ................................................................................................................... 2 1. Notes on vehicle adoption................................................................................................... 3 a. Vehicle Fleet Aging Chain.............................................................................................. 3 b. I...

In this paper, we examine the utility of a heterogeneous fleet of aquatic robots to cooperatively assess large-scale aquatic ecosystems, with a specific focus on representing the responses of coral reef ecosystems to climate change. We approach this problem through a unique blend of persistent aquatic sampling, vision-based sensing, and cooperative mission planning across a fleet of heterogeneo...

Controlling a fleet usually implies to establish means of control of vehicles, to collect the data associated with the routes taken by these vehicles, to interpret and evaluate the meaning of the collected data and to make the appropriate decisions to improve the efficiency in the use of vehicles in an organization. The implementation of this process of fleet management is mainly performed manu...

Reporting of human accidents in the Norwegian Fishing Fleet has always been very difficult because there has been no tradition in making reports on all types of working accidents among fishermen, if the accident does not seem to be very serious or there is no economical incentive to report. Therefore reports are only written when the accidents are serious or if the fisherman is reported sick. R...