New Application of Radioactive Tracer Method for the Sediment Movement Measurements in the Nearshore Zone

1989 ◽  
Vol 25 (8) ◽  
pp. 330-334
Author(s):  
A. Owezarezyk ◽  
M. Strzelecki ◽  
St. Szpilowski ◽  
R. Wierzchnicki ◽  
T. Basiński
Keyword(s):  
Radioactive Tracer ◽  
Nearshore Zone ◽  
Tracer Method ◽  
Sediment Movement ◽  
Radioactive Tracer Method

scholarly journals Dynamics of Iron Uptake and Fe3O4 Biomineralization during Aerobic and Microaerobic Growth of Magnetospirillum gryphiswaldense

1998 ◽  
Vol 180 (1) ◽  
pp. 159-162 ◽  
Author(s):  
Dirk Schüler ◽  
Edmund Baeuerlein
Keyword(s):  
Iron Uptake ◽  
Iron Transport ◽  
Radioactive Tracer ◽  
Crystal Formation ◽  
Low Oxygen ◽  
Tracer Method ◽  
Magnetospirillum Gryphiswaldense ◽  
Radioactive Tracer Method ◽  
Low Oxygen Concentration ◽  
Light Scattering Technique

ABSTRACT Iron uptake and magnetite (Fe3O4) crystal formation could be studied in the microaerophilic magnetic bacteriumMagnetospirillum gryphiswaldense by using a radioactive tracer method for iron transport and a differential light-scattering technique for magnetism. Magnetite formation occurred only in a narrow range of low oxygen concentration, i.e., 2 to 7 μM O2 at 30°C. Magnetic cells stored up to 2% iron as magnetite crystals in intracytoplasmic vesicles. This extraordinary uptake of iron was coupled tightly to the biomineralization of up to 60 magnetite crystals with diameters of 42 to 45 nm.

The radioactive tracer method of studying the erosion of the refractory lining in the sintering zone of rotary kilns

Refractories ◽  
1977 ◽  
Vol 18 (3-4) ◽  
pp. 223-226
Author(s):  
V. I. Shubin ◽  
V. I. Nikonorov ◽  
Yu. A. Kurbatov ◽  
O. M. Stanulionis ◽  
V. P. Vasil'ev ◽  
...  
Keyword(s):  
Refractory Lining ◽  
Radioactive Tracer ◽  
Tracer Method ◽  
Rotary Kilns ◽  
Radioactive Tracer Method
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