A Short-circuit Electromagnetic Sensor for Measurement of Soil Complex Permittivity

2007 ◽  
Vol 30 (4) ◽  
pp. 100664
Author(s):  
L. D. Suits ◽  
T. C. Sheahan ◽  
Yanqing Xu ◽  
Julie Q. Shang ◽  
Ernest K. Yanful
Keyword(s):  
Complex Permittivity ◽  
Short Circuit ◽  
Soil Complex ◽  
Electromagnetic Sensor

A novel iterative method to estimate the soil complex permittivity from measurement and simulation modeling

2021 ◽  
Author(s):  
Marcelo M. Alves ◽  
M. T. de Melo ◽  
L. R. G. S. Lourenco Novo ◽  
L. H. A. de Medeiros ◽  
M. S. Coutinho ◽  
...  
Keyword(s):  
Iterative Method ◽  
Complex Permittivity ◽  
Simulation Modeling ◽  
Soil Complex

Study on the effect of LNAPL pollution to soil complex permittivity

2012 ◽  
Author(s):  
Hongli Li ◽  
Qi Lu ◽  
Xuan Feng ◽  
Cai Liu ◽  
Wenjing Liang ◽  
...  
Keyword(s):  
Complex Permittivity ◽  
Soil Complex

Structural Imperfections in thin Oxide Films Formed on Some Fe- and Ni-Base Alloys

1970 ◽  
Vol 28 ◽  
pp. 510-511
Author(s):  
L. P. Lemaire ◽  
D. E. Fornwalt ◽  
F. S. Pettit ◽  
B. H. Kear
Keyword(s):  
Oxide Scale ◽  
Oxidation Process ◽  
Short Circuit ◽  
Protective Oxide ◽  
Protective Oxide Scale ◽  
Thin Oxide Films ◽  
Diffusion Paths ◽  
Oxidation Resistant ◽  
Structural Imperfections ◽  
Short Circuit Diffusion

Oxidation resistant alloys depend on the formation of a continuous layer of protective oxide scale during the oxidation process. The initial stages of oxidation of multi-component alloys can be quite complex, since numerous metal oxides can be formed. For oxidation resistance, the composition is adjusted so that selective oxidation occurs of that element whose oxide affords the most protection. Ideally, the protective oxide scale should be i) structurally perfect, so as to avoid short-circuit diffusion paths, and ii) strongly adherent to the alloy substrate, which minimizes spalling in response to thermal cycling. Small concentrations (∼ 0.1%) of certain reactive elements, such as yttrium, markedly improve the adherence of oxide scales in many alloy systems.

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