Spectroscopy of Ultra--Steep Spectrum Radio Sources: A Sample of z>2 Radio Galaxies

Autor: Röttgering, H. J. A., van Ojik, R., Miley, G. K., Chambers, K. C., van Breugel, W. J. M., de Koff, S.

We present spectroscopic observations for 64 radio galaxies having ultra steep radio spectra. Twenty-nine objects have redshifts $z>2$, the largest redshifts being almost 4. Our ultra steep spectrum (USS) criterion ($\alpha < -1$) has proven to be th

Externí odkaz: http://arxiv.org/abs/astro-ph/9608063

Four-colour photometry of eclipsing binaries***

Autor: Vaz, L. P.R., Cunha, N. C.S., Andersen, J., Clausen, J. V., Garcia, J. M., Giménez, A., Casey, B. W., de Koff, S., Vaz, L. P.R., Cunha, N. C.S., Andersen, J., Clausen, J. V., Garcia, J. M., Giménez, A., Casey, B. W., de Koff, S.

Publikováno v: Astronomy and Astrophysics. Supplement Series; March 1998, Vol. 128 Issue: 2 p251-254, 4p

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Dynamic assignment vehicle routing problem with generalised capacity and unknown workload

Autor: Phillipson, F, de Koff, S, van Ommeren, C, Quak, Hans, Parlier, GH, Liberatore, F, Demange, M

Publikováno v: Scopus-Elsevier
STARTPAGE=329;ENDPAGE=335;TITLE=None
ICORES
Proceedings of the 9th International Conference on Operations Research and Enterprise Systems-Volume 1: ICORES, 1, 329-335
9th International Conference on Operations Research and Enterprise Systems (ICORES), Valletta (Malta), 2020

In this paper we present a modification to the Dynamic Assignment Vehicle Routing Problem. This problem arises in parcel to vehicle assignment where the destination of the parcels is not known up to the assignment of the parcel to a delivering route.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7c539c234cfd4c91cf1600982dacee5
http://www.scopus.com/inward/record.url?eid=2-s2.0-85082994818&partnerID=MN8TOARS

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