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EMT SF6 N2 Mixtures Analysis

EMT SF6 N2 Mixtures Analysis

The equilibrium pressure of SF6-N2 mixture gas was higher than that of pure SF6 gas. Phase equilibrium data of SF6-N2 mixture gas was similar to SF6 rather than N2. The kinetics of SF6-N2 mixture gas was controlled by the amount of SF6 at the initial gas composition as well as N2 gas incorporation into the S-cage of structure-II hydrate preformed by the SF6 gas.

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  • CHARACTERISTICS OF PARTIAL DISCHARGES ON A DIELECTRIC

    analysis of the stochastic behavior, the differences of the time-resolved histograms of PD in SF6-N2 mixtures and air have been obtained. Due to the strong electronegative character of SF6 and its tendency to decompose during a discharge, the PD patterns in SF6-N2 mixtures are notably different from those in air.

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  • Pure SF6 and SF6-N2 mixture gas hydrates equilibrium and

    The equilibrium pressure of SF6-N2 mixture gas was higher than that of pure SF6 gas. Phase equilibrium data of SF6-N2 mixture gas was similar to SF6 rather than N2. The kinetics of SF6-N2 mixture gas was controlled by the amount of SF6 at the initial gas composition as well as N2 gas incorporation into the S-cage of structure-II hydrate preformed by the SF6 gas.

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  • Analysis of Experimental and Simulation Results of SF6/N2 Gas

    Practically, the DC positive breakdown voltage of SF6/N2 gas mixture happen early due to the occurrence of corona and partial discharge. The difference between simulation and experimental results DC positive breakdown voltage of SF6/N2 gas mixture decreases as the percentage of SF6 gas increases while having same pressure inside the ball bowl electrode.

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  • DEW POINTS OF SF6/N2 GAS MIXTURES - ScienceDirect

    Jan 01, 2013 · The compositions 0/100, 20/80, 40/60, 60/40, 80/20 and 100/0 mole % SF6/N2 were prepared. It is understood that the mole % will refer to the ratio of partial pressures of gases upon loading, assuming ideality. The gases used were dry commercial grades, without addi tional purification or drying.

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  • Measurement of ionization and attachment coefficients in SF6

    A digital computer analysis is used for evaluation of the ionization and attachment coefficients. The variation of (α−η)/p in SF 6 and N 2 mixtures is found to be nonlinear with the percentage mixture ratio. Sparkover voltage measurements are carried out for SF 6, N 2, and SF 6 +N 2 mixtures in the pd interval of 3.5≤pd≤25 Torr cm.

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  • VLVRIHOHFWURQWUDQVSRUW SURSHUWLHVLQO 6) 1 JDVPL[WXUHV H

    ties of the ternary mixture Ccl2F2/SF6/N2 in the framework of a Boltzmann-equation analysis. This particular mixture was singled out in a comprehensive study for the Electrical Power Research Institute (EPRI) on the insulating and interruption properties of gases and gaseous mixtures (Wootton 1982) as

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  • (PDF) Comparative Analysis of Discharge Sensitivity by the

    The discharge fractal dimension D of 50%/50% SF6/N2 gas mixture equals to 1.2192, and the average velocity during the discharge process of streamer propagation is 1.15 Mm/s.

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  • Step Propagation Mechanism of Impulse Creepage Discharge in

    W. Pfeiffer, D. Schoen and C. Zender, Analysis of Prebreakdown and Breakdown of SF6/N2 Mixtures in Non-Uniform Gaps for Very Fast Transient Voltage, IEEE Int. Symp. on Elect. Insui, Vol. 2, pp. 689–692 (1998), Google Scholar

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  • Analysis of Paschen Curves for air, N2 and SF6 Using the

    It has been shown that it is possible to extend the validity of the Townsend breakdown criterion for evaluating the breakdown voltages in the complete pd range in which Paschen curves are available. Evaluation of the breakdown voltages for air (pd=0.0133 to 1400 kPa · cm), N2 (pd=0.0313 to 1400 kPa · cm) and SF6 (pd=0.3000 to 1200 kPa · cm) has been done and in most cases the computed values are accurate to ±3% of the measured values.

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  • FGF2 and EGF induce epithelial-mesenchymal transition in

    The epithelioid and sarcomatoid subtypes are characterized by cuboid and fibroblastoid cells, respectively. The biphasic subtype contains a mixture of both. The sarcomatoid subtype expresses markers of epithelial-mesenchymal transition (EMT) and confers the worst prognosis, but the signals and pathways controlling EMT in MPM are not well

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  • Comparison of SF6/N2 and SF6/CO 2 gas mixtures as

    The results showed that the breakdown voltage (VB) of the 50% SF6/50% N2 gas mixture was 8%~12% higher than that of the 20% SF6/80% N2 gas mixture. Qiu and co-workers studied the breakdown...

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  • IET Digital Library: Analysis of SF6/N2 gas mixture

    Two methods have been carried out for the analysis of SF6/N2 gas mixture decomposition by-products in electric discharges: infrared spectroscopy and gas chromatography. The infrared spectroscopy is a rapid method from which we can have qualitative analysis about all the products in a mixture, except those having the same absorption lines.

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  • SF6 gas Mixtures product services industry

    N2 mixtures through to the separation of SF6/N2 mixtures at end of service life or whenever required. For this long time lasting technology Solvay has developed steps in filling, mixing and separation technology. Fig. 11 Gas insulated line for SF6 / N2 mixture in a tunnel 245 – 550 kV (Siemens, Germany) Fig. 10 Polyethylene coated GIL system for

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  • Frontiers | Comparative Study of Transcriptomics-Based

    Mar 20, 2020 · The Epithelial–mesenchymal transition (EMT) is a cellular process implicated in embryonic development, wound healing, and pathological conditions such as cancer metastasis and fibrosis. Cancer cells undergoing EMT exhibit enhanced aggressive behavior characterized by drug resistance, tumor-initiation potential, and the ability to evade the immune system. Recent in silico, in vitro, and in

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  • SF6 Analysis and Testing Products - EMT Energy Maintenance

    EMT have developed market leading IR measurement of CF 4 available in two versions; High range (0-65% Vol) for high CF 4 /SF 6 mixtures in cold climates; Low range (0-4000ppmv) for checking arcing by-products in SF 6; EMT utilise a long life and high specification SO2 sensor; Designed for measurement of SO2 in SF 6 gas streams

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  • FABP4 promotes invasion and metastasis of colon cancer by

    Oct 19, 2020 · Background The prognosis of colon cancer is poor for metastasis, while the mechanism, especially adipocytes related, is not yet clear. The purpose of this study is to determine the effects of fatty acid binding protein 4 (FABP4), a transporter for lipids, on colon cancer progression. Methods The distribution of lipids and FABP4 was tested in the colon cancer tissues and adjacent normal tissues

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  • High-Precision Density Sensor for Concentration Monitoring of

    Jan 01, 2012 · The results for two binary mixtures of SF 6 /N 2 and SF 6 /CF 4 are shown in Fig. 2. The nominal concentrations of SF 6 were c B =19.27% and c B =52.6%, respectively (indicated by the dashed horizontal lines in the plots). The concentration data shown include a linear correction for the temperature-dependent viscosity of the gas mixture.

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  • SF6 gas Mixtures Maintenance Unit

    N2 mixtures through to the separation of SF6/N2 mixtures at end of service life or whenever required. For this long time lasting technology Solvay has developed steps in filling, mixing and separation technology.

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  • Synergistic action of master transcription factors controls

    Thus, a time-course analysis of cells undergoing EMT could reveal the essential characteristics of partial-EMT cells. In this study, we addressed the hypothesis that the temporal activation of multiple cooperative master TFs mediated by super-enhancers might characterize the partial-EMT state.

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  • SF6Verify - emt.uk.com

    EMT Verify offers the most complete SF6 verification gas mixture for peace of mind ensuring results confidence when using your SF6 gas analyser. EMT Verify gas standards can be used with all types of SF6 analyser. EMT Verify meets NIST* quality standards and all gases come complete with NIST* traceable certificates of analysis. EMT Value

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  • Intrahepatic cholangiocarcinoma induced M2-polarized tumor

    Dec 07, 2020 · Background M2-polarized tumor-associated macrophages (M2-TAMs) have been shown to correlate with the progression of various cancers, including intrahepatic cholangiocarcinoma (ICC). However, the interactions and mechanism between M2 macrophages and ICC are not completely clear. We aimed to clarify whether M2 macrophages promote the malignancy of ICC and its mechanism. Methods Two progressive

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  • Pure SF6 and SF6−N2 Mixture Gas Hydrates Equilibrium and

    Sulfur hexafluoride (SF6), whether pure or mixed with inexpensive inert gas, has been widely used in a variety of industrial processes, but it is one of the most potent greenhouse gases. For this reason, it is necessary to separate and/or collect it from waste gas streams. In this study, we investigated the pure SF6 and SF6−N2 mixture gas hydrates formation equilibrium as well as the gas

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  • ‪M.S Dincer (M.Sezai Dincer)‬ - ‪Google Scholar‬

    Boltzmann analysis of electron swarm parameters in binary CF 4 + Ar mixtures SS Tezcan, MS Dincer, S Bektas, HR Hiziroglu IEEE Transactions on Dielectrics and Electrical Insulation 20 (1), 98-103 , 2013

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  • Characteristics of Partial Discharges on a Dielectric Surface

    This paper presents the results of a recent investigation of pulsating PD phenomena occurring in point-dielectric gaps under an alternating voltage in SF 6-N 2 mixtures. The dielectric is a cast epoxy resin with Al 2 O 3 filler. A computer-based PD recording system has been utilized which captures the amplitudes and time of occurrences of all pulsating PD events above a certain amplitude within an arbitrary time period.

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  • Thermal Decomposition Properties of Epoxy Resin in SF6/N2 Mixture

    As a promising alternative for pure SF6, the mixture of SF6/N2 appears to be more economic and environment-friendly on the premise of maintaining similar dielectric properties with pure SF6. But less attention has been paid to the thermal properties of an SF6/N2 mixture, especially with insulation materials overheating happening simultaneously. In this paper, thermal decomposition properties

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  • Simple Spectrophotometric Methods for Determination of

    May 21, 2013 · Two simple and selective methods were developed for the simultaneous determination of tenofovir fumarate (TEN) and emtricitabine (EMT) in combined tablets. The first method involves the application of first derivative spectrophotometry where the first derivative amplitudes were measured at 298.5#x2009;nm for determination of EMT in presence of TEN.

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  • Endothelial Induced EMT in Breast Epithelial Cells with Stem

    Introduction. Epithelial to mesenchymal transition (EMT) is associated with increased aggressiveness and adverse prognosis in carcinomas , .This conversion of cancer cells towards a more mesenchymal phenotype involves loss or lowered expression of epithelial markers (e.g. E-Cad and keratins), increased expression of mesenchymal markers (e.g. N-Cad, vimentin, fibronectin), increased mobility

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  • Manuel Garcia-Jaramillo - emt.oregonstate.edu

    (II) Link the occurrence of these contaminants in water samples with health outcomes in human and animal models. (III) Discover and validate blood-based biomarkers associated with contaminants exposure. (IV) Determine long-term effects of low-dose repeated exposure to complex mixtures using a combination of multi-OMICS analysis.

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