We consider the resource-constrained project scheduling problem. The purpose of this paper is to direct the focus to a branch-and-bound concept that can, by simple adaptations, operate on a wide range of problem settings. The general approach can, e.g., deal with multi-mode problems, resource availability varying with time, and a wide range of objectives. Even the simple assembly line balancing...

Researching the evolution and maintenance of reproductive mode (oviparity, ovoviviparity and viviparity) is important for identifying the intrinsic and environmental pressures associated with maternal care. We studied the life history, reproductive mode and sex allocation of Bactrothrips brevitubus, a haplodiploid, facultatively ovoviviparous Japanese thrips. Individual females can produce a ma...

We consider the multi-mode resource-constrained project scheduling problem (MRCPSP) with renewable resources. In MRCPSP, an activity can be executed in one of many possible modes; each mode having different resource requirements and accordingly different activity durations. We assume that all resources are renewable from period to period, such as labor and machines. A solution to this problem b...

  Introduction: reduction of possibility risk in hospitals is an important and vital issue for improving the quality of health care. This research was conducted with the aim of identifying, analyzing and prioritizing risks using the failure mode and effects analysis (FMEA) method, providing solutions for reducing or controlling identified risks and examining the effective basics of risk ...

In the multi-mode resource-constrained multi-project scheduling (MMRCMPSP) problem we have to find execution modes and starting times for the jobs of multiple projects, such that the total project delay is minimized. The delay of a project is the difference between its makespan and a lower bound on its duration. A secondary objective is to minimize the total makespan of all projects. The jobs o...

Multi-mode Resource Constrained Project Selection and Scheduling Considering the Reinvestment Strategy in a Flexible Time Horizon

Device to device (D2D) communication has recently been established in the literature as an effective means increase frequency spectrum and enhance efficiency of energy consumption future cellular systems. However, certain issues, resulting from reusing resources same cell, have caused serious perturbations. We study issues pertaining D2D communication, such dual mode selection, channel allocati...