The resource constraint project scheduling problem (RCPSP) is an NP-hard benchmark problem in scheduling which takes into account the limitation of resources’ availabilities in real life production processes and subsumes open-shop, job-shop, and flow-shop scheduling as special cases. We here present an application of machine learning to adapt simple greedy strategies for the RCPSP. Iterative re...

This paper considers an inventory system responsible for repairable equipments located at several operational sites, each in different area. When a failure occurs at the operational site, spare parts are required. We analyze a multiple-supplier inventory system that includes an internal repair shop that offers several modes of repair with different repair times and an external supplier of spare...

This paper presents RepairSHOP a system capable of performing plan adaptation and plan repair. RepairSHOP is built on top of the HTN planner SHOP. RepairSHOP has three properties. The first property is its design modularity, which makes it is straightforward to apply the same process discussed in this paper to build plan adaptation capabilities in other HTN planners. Second, RepairSHOP can perf...

We study static repair priorities in a system consisting of one repair shop and one stockpoint, where spare parts of multiple repairables are kept on stock to serve an installed base of technical systems. Demands for ready-for-use parts occur according to Poisson processes, and are accompanied by returns of failed parts. The demands are met from stock if possible, and otherwise they are backord...

This paper presents the findings of comparative research into labor, organizational and spatial practices a new kind hybrid civic spaces that we refer to as “social impact-driven repair shops.” These are an emerging typology urban dedicated repaired up-cycled items also go beyond functions traditional shop. Significantly, these shops run not purely for economic reasons, but rather position them...

BACKGROUND The shortage of autologous skin sources not only adds difficulty to the repair of extremely large-area deep burn wounds but affects the healing quality. The aim of the present study is to explore an ideal method for repairing large-areas burn wounds with low scar formation. METHODS Between 2002 and 2014, we used grafting of small auto- and cryopreserved allo-skin to repair large-ar...

A 52-year-old man was admitted with an incidentally detected right renal artery aneurysm (RAA). Computed tomographic angiography with three-dimensional reconstruction revealed that the aneurysm was 2.2 cm in diameter and located at the renal hilum. We performed hand-assisted laparoscopic nephrectomy with ex vivo repair of the RAA and auto-transplantation with minimal elongation of Gibson incisi...

An important practical problem in real world schedule execution is the occurrence of unforeseen events. When any changes in a production environment occur, the schedule has to be revised. Considering time consuming and shop floor nervousness, reactive repair of a disrupted schedule is a better alternative to total rescheduling. Most of the researchers have focused on heuristic based schedule re...