This report is an outgrowth of a research project carried out by the Operations Research Group of Twente University of Technology in cooperation with the Department Fire-Brigade Affairs (Home Office) and the Rotterdam l-ire Department. The objectives of the project were to determine the minimal number of fire stations, their locations and the number of first attendance pumpers, so that each poi...

A stochastic inventory routing problem (SIRP) is typically the combination of stochastic inventory control problems and NP-hard vehicle routing problems, which determines delivery volumes to the customers that the depot serves in each period, and vehicle routes to deliver the volumes. This paper aims to solve a large scale multi-period SIRP with split delivery (SIRPSD) where a customer’s delive...

Kawasan Fort Rotterdam merupakan bangunan peninggalan sejarah dan warisan budaya. Hasil observasi persepsi awal terhadap wisatawan lokal yang ada di masalah perlu ditangani yaitu datang ke lebih tertarik pada acara bersifat komersil dibandingkan kegiatan wisata Acara ini diduga dapat merusak kualitas produk sebagai Penelitian dilakukan dengan tujuan mengukur Rotterdam. Peneliti menggunakan gabu...

This paper presents a unifying theory, explaining the different relationships between firm size and export intensity that have been found in previous studies. We propose that transaction costs economies and different types of resources induce a moderating effect on the firm size and export intensity relationship. Data on international businesses in the Netherlands are used to test the theoretic...

Having sufficient inventories in the piece-picking area of a warehouse is an essential condition for warehouse operations. This requires a timely replenishment of the products from a reserve area in case they could run out of stock. In this paper we develop analytical models to arrive at priority rules for these replenishments in case replenishments and order picking are done simultaneously bec...

1 Department of Neurology, Erasmus Medical Centre, 3015 CE Rotterdam, The Netherlands 2 Department of Internal Medicine, Erasmus Medical Centre, 3015 CE Rotterdam, The Netherlands 3 Department of Pathology, VU University Medical Centre, De Boelelaan 1117, 1081 HV Amsterdam, The Netherlands 4 Department of Clinical Genetics, Erasmus Medical Centre, 3015 CE Rotterdam, The Netherlands 5 DZNE, Germ...