Library

Title Date Author Language
Effect of grain shape and petrographic composition of railway ballast on the Impact Test March 2014 Elisabeth Uhlig English with German abstract
Þrívíddargreining & berggreining með „Petroscope 4D“ og tölfræðileg spá um tæknieiginleika með „Techmodel“ til eftirlits með gæðum fylliefna February 2014 Þorgeir S. Helgason
(Thorgeir S. Helgason)
Icelandic
Evaluation of Attrition Tests for Railway Ballast. Dissertation, Institute for Railway Engineering and Transport Economy, TU Graz, Austria. 2013 Holger Bach English
Impact of Geometric and Petrographic Characteristics on the Variability of LA Test Values for Railway Ballast. Mathematical Geosciences 45(6), pp 727-752 2013 Hofer, V. Bach, H. Latal, C. Neubauer, A.-C. English
Optimierungspotenziale bei Testverfahren zur Qualitätssicherung von Bahnschotter (Quality assurance of railway ballast – Improvement potential on test methods). ZEVRail 137(6-7), pp 230-237 2013 Bach, H. English & German
Functional Methods for Classification of Different Petrographic Varieties by Means of Reflectance Spectra. Mathematical Geosciences 43(2), pp 165-181 2011 Hofer, V. English
A new approach to the three-dimensional quantification of angularity using image analysis of the size and form of coarse aggregates. Engineering Geology 91(2-4), pp 254-264 2007 Lee, J.R.J. Smith, M.L. Smith, L.N. English
Support Vector Machines for Classification of Aggregates by Means of IR-Spectra. Mathematical Geology 39(3), pp 307-319 2007 Hofer, V. Pilz, J. Helgason, T. S. English
Statistical Classification of Different Petrographic Varieties of Aggregates by Means of Near and Mid Infrared Spectra. Mathematical Geology 38(7), pp 851-870 2006 Hofer, V. Pilz, J. Helgason, T. S. English
Berggerð og kornalögun sýna
í steinefnabanka BUSL – lokaskýrsla.
Petrographic type and shape of aggregates in the BUSL Aggregates bank – final report.
February 2006 Þorgeir S. Helgason
(Thorgeir S. Helgason),
Sigrun Marteinsdottir,
Edda Lilja Sveinsdottir,
Brynhildur Magnusdottir
Icelandic with English abstract
A mathematical morphology approach to image based 3D particle shape analysis. Machine Vision and Applications 16(5), pp 282-288 2005 Lee, J.R.J. Smith, M.L. Smith, L.N. Midha, P.S. English
PETROSCOPE – ljóstæknileg aðferð við berggreiningu og mælingu á
kornadreifingu og lögun steinefna.
November 2005 Þorgeir S. Helgason
(Thorgeir S. Helgason)
Icelandic
Testing and conformity assessment of
construction aggregates using the
Pm Techmodel software
2002 Þorgeir S. Helgason
(Thorgeir S. Helgason)
English
Multivariate analysis for comparing different methods for testing aggregates. September 2002 Jürgen PILZ,
Gunnar BJARNASON
Pétur PÉTURSSON
English
Testing and conformity assessment of
construction aggregates using the
PM Techmodel software
September 2002 Þorgeir S. Helgason
(Thorgeir S. Helgason),
Sara FUXÉN
English
PM Lithodata and PM Techmodel June 2002 Þorgeir S. Helgason
(Thorgeir S. Helgason),
Ragnheiður Björnsdóttir
English
Prøvning af stenmaterialers fundamentale egenskaper og forudsigelse af tekniske egenskaper July 2001 Þorgeir S. Helgason
(Thorgeir S. Helgason)
Danish
Berggreining – áfangaskýrsla 2: Leiðbeiningar Efnisgæðanefndar við staðalinn ÍST EN 932-3:1996.
Petrographic description – improvement of a test method and adaptation to an European standard.
Desember 2000 Þorgeir S. Helgason
(Thorgeir S. Helgason),
Ásbjörn Jóhannesson,
Jón Haukur Steingrímsson,
Guðmundur Sveinsson,
Margrét I. Kjartansdóttir
Icelandic with English abstract
Berggerð og tæknilegir eiginleikar steinefna.
(E. Petrographic types and technical properties of aggregates.)
May 1996 Þorgeir S. Helgason
(Thorgeir S. Helgason),
Jón Haukur Steingrímsson
Icelandic with English abstract
Forudsigelse af tekniske eganskaber baseret på bjergartssammensætning, page 10 December 1994 Þorgeir S. Helgason
(Thorgeir S. Helgason)
Danish
Characteristics, properties and quality rating of Icelandic volcanic aggregates October 1990 Þorgeir S. Helgason
(Thorgeir S. Helgason)
English