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Olof Hjortstam
Olof Hjortstam
ABB Corporate Research
Verifierad e-postadress på se.abb.com
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Effects of nanoparticle charging on streamer development in transformer oil-based nanofluids
JG Hwang, M Zahn, FM O’Sullivan, LAA Pettersson, O Hjortstam, R Liu
Journal of applied physics 107 (1), 014310, 2010
3792010
Enhancement of orbital magnetism at surfaces: Co on Cu (100)
M Tischer, O Hjortstam, D Arvanitis, JH Dunn, F May, K Baberschke, ...
Physical review letters 75 (8), 1602, 1995
2821995
Calculated spin and orbital moments in the surfaces of the metals Fe, Co, and Ni and their overlayers on Cu(001)
O Hjortstam, J Trygg, JM Wills, B Johansson, O Eriksson
Physical Review B 53 (14), 9204, 1996
1971996
Magnetic anisotropy and magnetostriction in tetragonal and cubic Ni
O Hjortstam, K Baberschke, JM Wills, B Johansson, O Eriksson
Physical Review B 55 (22), 15026, 1997
1731997
Can we achieve ultra-low resistivity in carbon nanotube-based metal composites?
O Hjortstam, P Isberg, S Söderholm, H Dai
Applied Physics A 78, 1175-1179, 2004
1692004
Power cable
O Hjortstam, P Isberg, S Soderholm, H Korske
US Patent App. 10/221,870, 2004
1052004
Fundamental research on the application of nano dielectrics to transformers
R Liu, LAA Pettersson, T Auletta, O Hjortstam
2011 Annual report conference on electrical insulation and dielectric …, 2011
942011
Modeling of streamer propagation in transformer oil-based nanofluids
JG Hwang, F O'Sullivan, M Zahn, O Hjortstam, LAA Pettersson, R Liu
2008 Annual Report Conference on Electrical Insulation and Dielectric …, 2008
932008
A model for the initiation and propagation of positive streamers in transformer oil
F O'Sullivan, JG Hwang, M Zahn, O Hjortstam, L Pettersson, R Liu, P Biller
Conference record of the 2008 IEEE international symposium on electrical …, 2008
912008
Electron scavenging by conductive nanoparticles in oil insulated power transformers
JG Hwang, M Zahn, FM O’Sullivan, LAA Pettersson, O Hjortstam, R Liu
Electrostatistics Joint Conference, 1, 2009
732009
Bonding of an Isolated K atom to a Surface: Experiment and Theory
A Sandell, O Hjortstam, A Nilsson, PA Brühwiler, O Eriksson, P Bennich, ...
Physical review letters 78 (26), 4994, 1997
651997
Bulk and surface magnetism and interplanar spacings in Gd from first-principles calculations
O Eriksson, R Ahuja, A Ormeci, J Trygg, O Hjortstam, P Söderlind, ...
Physical Review B 52 (6), 4420, 1995
611995
Modeling the effect of ionic dissociation on charge transport in transformer oil
F O'Sullivan, SH Lee, M Zahn, L Pettersson, R Liu, O Hjortstam, T Auletta, ...
2006 IEEE Conference on Electrical Insulation and Dielectric Phenomena, 756-759, 2006
402006
Calculated trends of the magnetostriction coefficient of alloys from first principles
P James, O Eriksson, O Hjortstam, B Johansson, L Nordström
Applied Physics Letters 76 (7), 915-917, 2000
372000
Modeling and measurements of electric fields in composite oil/cellulose insulation
U Gafvert, O Hjortstam, Y Serdyuk, C Tornkvist, L Walfridsson
2006 IEEE Conference on Electrical Insulation and Dielectric Phenomena, 154-157, 2006
302006
Orbital polarization in metallic f-electron systems
IS Sandalov, O Hjortstam, B Johansson, O Eriksson
Physical Review B 51 (20), 13987, 1995
281995
Solid insulation in DC gas-insulated systems
R Gremaud, F Molitor, C Doiron, T Christen, U Riechert, U Straumann, ...
Cigré Session 45, D1_103_2014, 2014
262014
Modeling streamers in transformer oil: The transitional fast 3rd mode streamer
JG Hwang, M Zahn, LAA Pettersson, O Hjortstam, R Liu
2009 IEEE 9th International Conference on the Properties and Applications of …, 2009
262009
Injection dependent long carrier lifetimes in high quality CVD diamond
J Hammersberg, J Isberg, E Johansson, T Lundström, O Hjortstam, ...
Diamond and related materials 10 (3-7), 574-579, 2001
262001
Measurement of ion mobility in transformer oils for HVDC applications
L Yang, MS Zadeh, J Schiessling, O Hjortstam, YV Serdyuk, SM Gubanski
2012 International Conference on High Voltage Engineering and Application …, 2012
222012
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Artiklar 1–20