نتایج جستجو برای: electrical conductivity measurement

تعداد نتایج: 657288  

2005
Kamini Singha Steven M. Gorelick

[1] Cross-well electrical resistivity tomography (ERT) was used to monitor the migration of a saline tracer in a two-well pumping-injection experiment conducted at the Massachusetts Military Reservation in Cape Cod,Massachusetts. After injecting 2200mg/L of sodium chloride for 9 hours, ERT data sets were collected from four wells every 6 hours for 20 days. More than 180,000 resistance measureme...

2012
A. Ambia T. Takemae Y. Kosugi M. Hongo

Electric impedance imaging is a method of reconstructing spatial distribution of electrical conductivity inside a subject. In this paper, a new method of electrical impedance imaging using eddy current is proposed. The eddy current distribution in the body depends on the conductivity distribution and the magnetic field pattern. By changing the position of magnetic core, a set of voltage differe...

2006
Cheng-Xin Li Min Gao Chang-Jiu Li Wei Zhou Guan-Jun Yang Yu-Yue Wang

Lanthanum strontium cobalt oxide (LSCO) has been employed as cathode and intercollector materials for solid oxide fuel cells (SOFCs). In the present study, the La0:5Sr0:5CoO3 layer was deposited by atmospheric plasma spray (APS). The effect of heat treatment on microstructure and electrical conductivity of the LSCO deposits was examined. The electrical conductivity of the deposits along the lam...

1998
Robert Harrington Roger C. Bales

Meltwater discharge and electrical conductivity were measured in eight 1 3 1 m lysimeters, and snow accumulation and electrical conductivity of melted samples were measured in snow pits during four snowmelt seasons at Mammoth Mountain, California. The peak snow-water equivalent ranged from 0.57 to 2.92 m over the four melt seasons. Lysimeter discharges ranged from 20% to 205% of the mean flow; ...

2005
Nicola Bowler Yongqiang Huang Y Huang

Electrical conductivity of metal plates is measured by two distinct methods and the uncertainty associated with each method is evaluated. First, the impedance of an air-cored eddy-current coil is measured in the frequency range 100 Hz to 20 kHz. Corrections are made to account for the fact that the coil is not a pure inductor but exhibits finite resistance and capacitance in and between the win...

Journal: :Applied sciences 2021

Conductive oxides are widely studied as cathode materials for electrochemical cells, such solid oxide fuel cells (SOFCs), because of their chemical stability and high electrical conductivity at temperatures (800–950 °C). The is a key component SOFCs, accounting the greatest resistance loss among SOFC components. It important to precisely determine material, but it difficult achieve consistency ...

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