Mobile NMR scanners for nondestructive measurements of porosity of drill cores

2007 ◽  
Vol 25 (4) ◽  
pp. 547
Author(s):  
V. Anferov ◽  
S. Anferova ◽  
M.A. Voda ◽  
K. Kupferschlaeger ◽  
B. Blümich
1975 ◽  
Vol 12 (7) ◽  
pp. 1244-1248 ◽  
Author(s):  
W. F. Fahrig ◽  
G. Freda

Paleomagnetic measurements on 61 drill cores from eight sites of the Coast Parallel dikes of west Greenland (Fiskenaesset area) have yielded a pole position at 169°E, 54°N, α95 = 5.9°. When these data are combined with those from the Nunarsuit-Tornarssuk area (Ketelaar 1963) the pole is 168°E, 56°N, α95 = 6°. Reversely magnetized dikes are present in both areas.The Coast Parallel dike pole lies close to the Triassic pole position for North America if corrected for Bullard's fit. The dikes were therefore intruded prior to the Mesozoic separation of Greenland and North America.


2021 ◽  
Vol 362 ◽  
pp. 106300
Author(s):  
Ewa Krzemińska ◽  
Åke E. Johansson ◽  
Leszek. Krzemiński ◽  
Janina Wiszniewska ◽  
Ian. S. Williams ◽  
...  

1973 ◽  
Vol 5 (8) ◽  
pp. 975-977 ◽  
Author(s):  
O. I. Gushcha ◽  
V. K. Lebedev ◽  
A. N. Guz' ◽  
F. G. Makhort

2016 ◽  
Vol 62 (1) ◽  
pp. 65-82 ◽  
Author(s):  
J. Orlowsky

Abstract A large number of infrastructural concrete buildings are protected against aggressive environments by coating systems. The functionality of these coating systems is mainly affected by the composition and thickness of the individual polymeric layers. For the first time ever, a mobile nuclear magnetic resonance (NMR) sensor allows a non-destructive determination of these important parameters on the building site. However, before this technique can be used on steel-reinforced concrete elements, the potential effect of the reinforcement on the measurement, i.e. the NMR signal, needs to be studied. The results show a shift of the NMR profile as well as an increase of the signals amplitude in the case of the reinforced samples, while calculating the thickness of concrete coating leading to identical results.


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