Within the engineering design community there is support for further research into the development of improved approaches to design management. Such research has lead to coordination being identified as an important and pervasive characteristic of many existing approaches ~e.g., concurrent engineering and work-flow management!. In this article, operational design coordination is proposed as the...

The permanent state of the financial crisis has predictably brought to forefront such traditional problem banking as loans. This research aims work out an econometric approach solution loans terms’ rescheduling. For this purpose, we, firstly, treated credit a bank’s investment project with cashflows’ chart including initial outflow (principal) and following inflows represented by loan payments....

The available transfer capability (ATC) is an important index indicating the remaining transfer capability in the physical transmission network for further commercial activity above existing commitments, In this paper, ATC mathematical model considering post-contingency generation rescheduling and load curtailment is first formulated. Benders decomposition method is then used to partition the A...

Train dispatching is critical for the punctuality and reliability of rail operations, especially for a complex rail network. This paper develops innovative integer programming models for the problem of train dispatching on an N-track network by means of simultaneously rerouting and rescheduling trains. Based on a time-space network modeling framework, we first adapt a commonly used big-M method...

We address a dynamic repair shop scheduling problem in the context of military aircraft fleet management where the goal is to maintain a full complement of aircraft over the longterm. A number of flights, each with a requirement for a specific number and type of aircraft, are already scheduled over a long horizon. We need to assign aircraft to flights and schedule repair activities while consid...

There has always been a need to solve real-life large-scale problems, such as efficiently allocating limited resources, and other complex and conflicting situations related to combinatorial optimization genre. A class of combinatorial optimization problems is NP-hard and, among many well-known, several of them are assignment, planning and rescheduling problems. Assignment problems can deal with...

Since unexpected event occurrences are inevitable, an efficient and effective rescheduling approach is critical in freight railway day-to-day operations. Represented by the minimal-delay objectives, most commonly used efficiency-oriented ignores role of train priority poses equity problems rescheduling. For equity, different also reflects preference deciding orders; i.e., high-priority likely t...

This paper considers scheduling problems where the processing of a set of jobs has been scheduled (i.e., planned) to minimize a classical cost objective, under the assumption that the jobs are all available at the start of the planning horizon. Before processing starts, however, the availability of a subset of the jobs is delayed. Therefore, the decision maker needs to adjust the existing sched...

Cyclic scheduling problems concerning multimodal processes are usually observed in FMSs producing multi-type parts where the Automated Guided Vehicles System (AGVS) plays a role of a material handling system. Schedulability analysis of concurrently flowing cyclic processes (SCCP) executed in these kinds of systems can be considered using a declarative modeling framework. Proposed representation...

Monte Zweben Eugene Davis* Brian Daun t Michael Deale$ NASA Ames Research Center M.S. 269-2 Moffett Field, California 94035 This paper presents a new approach to rescheduling called constraint-based iterative repair. This approach gives our system the ability to satisfy domain constraints, address optimization concerns, minimize perturbation to the original schedule, and produce modified schedu...