Aggregate production planning (APP) is one of the most important issues carried out in manufacturing environments which seeks efficient planning, scheduling and coordination of all production activities that optimizes the company's objectives. In this paper, we develop a mixed integer linear programming (MILP) model for an integrated aggregate production planning system with closed loop supply ...

On maintenance optimization for offshore wind farms FRANÇOIS BESNARD Abstract The maintenance cost is known to be an important part of the levelized cost of energy generated by wind parks. Operational costs can be significantly reduced by optimizing decisions for maintenance strategies, maintenance support organization and maintenance planning. This is especially important for offshore wind pow...

We estimate a Bayesian learning model in order to assess the value of health plan performance information and the extent to which the explicit provision of information about product quality alters consumer behavior. We make use of a source of variation in which health plan performance information for HMOs was released to employees of a Fortune 50 company for the first time. Our empirical work i...

Standards are consensus-based documents that codify best practices. The use of standards (such as IEEE/EIA 12207, a maintenance model) is noted to assure that software projects are successfully completed on time, within budget and with the intended benefits. However, available standards for software maintenance model are mainly meant for in-house custom software. Are the published standards suf...

We seek to understand the relationship between employer decisions regarding which health plans firms choose to offer to their employees and the performance of those plans. We measure performance using data from the Health Plan Employer Data Information Set (HEDIS) and the Consumer Assessment of Health Plan Survey (CAHPS). We use a unique data set that lists the Health Maintenance Organizations ...

Societies emerge as changing alignments of social groups, segments, and classes, without either fixed boundaries or stable internal constitutions... Therefore, instead of assuming transgenerational continuity, institutional stability, and normative consensus, we must treat these as problematic. We need to understand such characteristics historically, to note the conditions for their emergence, ...

<p style='text-indent:20px;'>A railway network is an indispensable part of the public transportation system in many major cities around world. In order to provide a safe and reliable service, fleet passenger trains must undergo regular maintenance. These maintenance operations are lengthy procedures, which planned for one year or longer period. The planning specifies dates trains' arrival...