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OR Spectrum

Quantitative Approaches in Management

OR Spectrum OnlineFirst articles

19.05.2018 | Regular Article

Combining clinical departments and wards in maximum-care hospitals

Sharing bed capacity across clinical departments improves bed availability via pooling effects. This means in effect that fewer beds are required to satisfy a given service level when combining departments and wards into groups. However, this …

15.05.2018 | Regular Article

Designing a multi-service healthcare network based on the impact of patients’ flow among medical services

Efficient location of medical services is an issue of paramount importance in healthcare strategic planning. In this research, a mathematical model is developed for the location of multi-service health centers, assuming probabilistic demand and …

10.05.2018 | Regular Article

Assessment of the maintenance cost and analysis of availability measures in a finite life cycle for a system subject to competing failures

This paper deals with the assessment of the maintenance cost and the performance of a system under a finite planning horizon. The system is subject to two dependent causes of failure: internal degradation and sudden shocks. We assume that internal …

30.04.2018 | Regular Article

Flow shop scheduling with flexible processing times

In numerous flow shop variants, the processing times of the operations are not fixed in advance, but may be distributed with some flexibility among the machines. In this paper, we introduce a general model which is expressive enough to cover …

24.04.2018 | Regular Article

Multilevel rationing policy for spare parts when demand is state dependent

The multilevel rationing (MR) policy is the optimal inventory control policy for single-item M / M / 1 make-to-stock queues serving different priority classes when demand rate is constant and backlogging is allowed. Make-to-repair queues serving …

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Über diese Zeitschrift

Jointly sponsored by
Gesellschaft fuer Operations Research - The German OR Society
Nederlands Genootschap voor Besliskunde - The Dutch OR Society

OR Spectrum publishes applied and theoretical papers which contribute to Operations Research as a scientific instrument for the development and application of quantitative approaches for problem-solving and decision-making in management. It addresses all persons from university, industry, business and administration interested in innovative applications of quantitative methods as well as in advances in theory and techniques with relevance to practice.
The journal provides an international forum for academics and practitioners from areas such as quantitative management science, mathematical operations research, and related fields of engineering and information systems. It publishes high-quality, original papers belonging to the following types of contributions: Surveys, theoretical papers, application-oriented papers, and case studies. Papers must be written in English. All contributions are reviewed by at least two referees.

Officially cited as: OR Spectrum

2-year Impact Factor 2015: 1,395
5-year Impact Factor 2015: 2,191

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