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Yang, Juan
- Study of Cole-Cole Complex Resistivity Model for Chrome-Contaminated Soil
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Authors
Affiliations
1 Dezhou University, No.566, Daxuexi Road, Dezhou, Shandong, CN
1 Dezhou University, No.566, Daxuexi Road, Dezhou, Shandong, CN
Source
Nature Environment and Pollution Technology, Vol 15, No 3 (2016), Pagination: 987-990Abstract
Complex resistivity method is used to measure the concentration distribution of chromium salt in the chromecontaminated sites. Both, the salt concentration and moisture content could affect the measurement results, so a theoretical model is needed to distinguish the salt concentration and moisture content. The results of soil electrical test show that the soil has not only resistance character, but also capacitance character. The Cole-Cole complex resistance model of rock is used as the complex resistance model of soil. Cole-Cole model has four parameters: resistivity, time factor, charge rate and frequency factor. The math relation between soil physical parameter and measured resistivity is based on the solution resistivity. The math relation between soil physical parameter and time factor is derived from the double layer deformation, which includes electromagnetic field theory and the double-gel plate model. Finally, the theoretical derivation is compared with the experimental data to verify its accuracy.Keywords
Chrome-Contaminated Soil, Cole-Cole Model, Soil Water Content, Chromium Concentration.References
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- Li, Jin-ming 1999. Some experiment results of conduction and induced polarization characteristics for polluted water with the variation of the pollution concentration. Chinese Journal of Geophysics , 42(3): 428-434.
- Liu, Haorui 2010a. Parametric inversion on complex resistivity mathematic model of chrome-contaminated soil. Research of Environmental Sciences, 23(4): 480-484.
- Liu, Haorui 2010b. The complex dispersion properties of the chrome-contaminated soil. Geophysical & Geochemical Exploration, 34(3): 372-375.
- Liu, Yu-qiang, Li, Li and Wang, Qi 2009. Study on pollution situation at typical chrome residue contaminated sites and corresponding integrated remediation plan. Research of Environmental Sciences, 22(2): 248-253.
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- Tarasov, Andrey and Konstantin, Titov 2013. On the use of the Cole-Cole equations in spectral induced polarization. Geophysical Journal International, 195(1): 352-356.
- Stefan, Wolny, Adamowicz, Artur and Lepich, Marek 2014. Influence of temperature and moisture level in paper-oil insulation on the parameters of the Cole-Cole model. IEEE Transactions on Power Delivery, 29(1): 246-250.
- Bdnf Protects Photoreceptors from Light-Induced Oxidative Stress Through Upregulating CERKL in vitro
Abstract Views :235 |
PDF Views:82
Authors
Affiliations
1 Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan 430071, CN
2 Department of Operations Management, Zhongnan Hospital of Wuhan University, Wuhan 430071, CN
3 Department of Statistics, Renmin Hospital of Wuhan University, Wuhan 430071, CN
4 Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, CN
1 Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan 430071, CN
2 Department of Operations Management, Zhongnan Hospital of Wuhan University, Wuhan 430071, CN
3 Department of Statistics, Renmin Hospital of Wuhan University, Wuhan 430071, CN
4 Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, CN
Source
Current Science, Vol 120, No 6 (2021), Pagination: 1088-1091Abstract
Brain-derived neurotrophic factor (BDNF) protects the retina from light-induced injury. In this study, white light suppressed the cell viability of 661W photoreceptor cells in a time- and intensity-dependent manner, decreased the mRNA and protein levels of ceramide kinase-like (CERKL), but increased the reactive oxygen species (ROS) content in 24 h. Decrease in ROS content and increase in CERKL level were detected after BDNF treatment. BDNF also attenuated the light-induced ROS accumulation, as well as cell viability and CERKL suppression. Thus, strong light causes CERKL suppression, ROS accumulation and the consequent attenuation of photoreceptor viability, while BDNF protects it from such injuries through upregulating CERKL expression and downregulating ROS accumulation.Keywords
Brain-derived Neurotrophic Factor, Ceramide Kinase-like, Light-induced Injury, Photoreceptors, Reactive Oxygen Species.References
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