"Dielectric heating" Essays and Research Papers

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    Gas Insulated Substaton

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    this‚ large space is required for the normal or Air Insulated Substation (AIS). But the dielectric strength of SF6 gas is higher compared to the air‚ the clearances required for phase to phase and phase to ground for all equipments are quite lower. Hence‚ the overall size of each equipment and the complete substation is reduced to about 10% of the conventional air insulated substation. Extremely high dielectric properties of SF6 have long been recognized. Compressed SF6 has  been  used  as  an  insulating 

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    Speech for Fest

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    Abstract of SuperCapacitor Supercapacitor also known as electric double-layer capacitor (EDLC)‚electrochemical double layer capacitor‚ or ultracapacitors‚ is an electrochemical capacitor with relatively high energy density. Compared to conventional electrolytic capacitors the energy density is typically on the order of hundreds of times greater. In comparison with conventional batteries or fuel cells‚ EDLCs also have a much higher power density. In this article the use of super capacitors likes

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    Failure Mode of Semiconductor

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    Mechanism of Semiconductor Devices 3- 1 3.1.1 Reliability factors 3- 1 3.1.2 Failure factors and mechanisms of semiconductor devices 3- 4 3.2 Failure Mechanisms of Semiconductor Devices 3- 6 3.2.1 Time dependent dielectric breakdown (TDDB) 3- 6 3.2.2 Slow trap (NBTI) 3- 8 3.2.3 Hot carrier (AHC) 3-10 3.2.4 Soft error 3-12 3.2.5 Reliability problem of nonvolatile memory 3-14 3.2.6 Electromigration (EM) 3-16 3.2.7

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    feeding method is presented. Quarter-wave transformer is used to match the feeding line to the antennas. The center frequency is determined to operate at 4.5GHz. The patch array antenna was then fabricated on the substrate type RT/Duroid 5880 with dielectric constant of 2.22‚ substrate

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    Analysis of Discharge Parameters in Xenon-Filled Coaxial DBD Tube Udit Narayan Pal‚ Member‚ IEEE‚ Pooja Gulati‚ Niraj Kumar‚ Mahesh Kumar‚ M. S. Tyagi‚ B. L. Meena‚ A. K. Sharma‚ and Ram Prakash Abstract—In this paper‚ a xenon-filled coaxial dielectric barrier discharge (DBD) has been studied to understand the high-pressure nonequilibrium nonthermal plasma discharge. A quartz coaxial DBD tube (ID: 6 mm‚ OD: 12 mm) at 400-mbar xenon-filled pressure has been used in the experiment. A unipolar pulselike

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    Humidity Sensors

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    Humidity Sensors Humidity Humidity is defined as the water vapor content in air or other gases. Humidity is usually measured in terms of absolute humidity (the ratio of the mass of water vapor to the volume of air or gas)‚ dew point (the temperature and pressure at which a gas begins to condense into a liquid)‚ and relative humidity‚ or RH (the ratio of the moisture content of air compared to the saturated moisture level at the same temperature or pressure). Thermal conductivity humidity sensors

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    LNMFO Case Study

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    temperature. The high value of ε′ at low frequency and the low value of the dielectric constant at high frequency indicate large dielectric dispersion due to Maxwell–Wagner [34‚ 35] type interfacial polarization‚ which is in agreement with Koops phenomenological theory [36]. The large values of dielectric constant at lower frequencies may be explained on the basis of space charge polarization due to inhomogeneities present in dielectric structure‚ viz. porosity and grain boundary for the present ferrite

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    ELECTROSTATICS - I – Electrostatic Force 1. Frictional Electricity 2. Properties of Electric Charges 3. Coulomb’s Law 4. Coulomb’s Law in Vector Form 5. Units of Charge 6. Relative Permittivity or Dielectric Constant 7. Continuous Charge Distribution i) Linear Charge Density ii) Surface Charge Density iii) Volume Charge Density Frictional Electricity: Frictional electricity is the electricity produced by rubbing two suitable bodies and transfer of electrons from one body to other. + ++

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    FINAL YEAR PROJECT 1 PROGRESS REPORT 1 AUTHOR’S NAME : Ruban s/o Paramasivam STUDENT ID : EP083765 REPORTING PERIOD : 18TH JUNE 2012 - 15TH JULY 2012 SUPERVISOR’S : Mr. John Steven NAME PROJECT TITLE : Dissolved Gas Analysis in determining Transformer Faults SUBMISSION DATE : 16TH JULY 2012 1.0 Background of Studies Oil sampling analysis is a useful‚ predictive‚ maintenance tool for determining transformer health. DGA

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    IIT JEE ADVANCE PAPER 1

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    JEE(ADVANCED) – 2014 PAPER-1 Code-1 Questions with Answers PART – 1 PHYSICS SECTION – 1 (One or More Than One Options Correct Type) This section contains 10 multiple choice type questions. Each question has four choices (A)‚ (B)‚ (C) and (D) out of which ONE or MORE THAN ONE are correct. At time ?? = 0‚ terminal A in the circuit shown in the figure is connected to B by a keyand an (????)‚ with ??0 = 1Aand ω = 500 rad s-1 starts flowing in it with alternating current ??(??) = ??0 cos⁡ 1. the

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