| Title |
Date |
Author |
Language |
| 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 |
