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Calculation formula for apparent electrical resistivity of ...

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Calculation formula for apparent electrical resistivity of ...

No. 3 CALCULATION FORMULA FOR ELECTRICAL RESISTIVITY 295 of analysis and deduction, we take the isotropic high porosity body with well-distributed voids as

http://tech.scichina.com:8082/sciEe/fileup/PDF/99ye0294.pdf

Date added: August 31, 2013 - Views: 4

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An introduction to electrical resistivity in geophysics

An introduction to electrical resistivity in geophysics Rhett Hermana) Department of Chemistry and Physics and Department of Geology, Radford University, Radford,

http://www.radford.edu/~rherman/papers/ajp00943.pdf

Date added: January 28, 2012 - Views: 38

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An Assessment of Electrical Resistivity Soundings Data by ...

calculation by Barnes layer method, as it is based on Barnes layer method. ... electrical resistivity data from hard rock areas for groundwater exploration.”

http://psrcentre.org/images/extraimages/IJBEES013023.pdf

Date added: May 29, 2013 - Views: 2

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Earthing Calculation - ELECTRICAL SYSTEM

6/21/12 Earthing Calculation - Open Electrical ... 2.3.1 Step 1: Soil Resistivity 2.3.2 Step 2: Surface Layer Materials 2.3.3 Step 3: Earthing Grid Resistance

http://electricalsystem.weebly.com/uploads/7/9/3/7/7937982/earthing_calculation_for_switchyard.pdf

Date added: May 5, 2013 - Views: 36

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Surface Resistivity and Surface Resistance Measurements

Surface Resistivity and Surface Resistance Measurements Using a Concentric Ring Probe Technique ... Electrical Conductivity and Resistivity. CRC Press, 1999.

http://www.trekinc.com/pdf/1005_Resistivity_Resistance.pdf

Date added: January 28, 2012 - Views: 21

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Electrical resistivity/ resistance of some semiconductors

Electrical resistivity/ resistance of some semiconductors Rajendra Kumar 2 and Tanveer Ahmad Wani 1 ... Resistivity Calculation Log e A = -0.056 α = -0.026 β = -0.145

http://scholarsresearchlibrary.com/aasr-vol5-iss1/AASR-2013-5-1-134-139.pdf

Date added: May 22, 2013 - Views: 1

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Soil Resistivity Testing - Ergon Energy

Specification for Soil Resistivity Testing Check this is the latest version before use. i Specification Ver 1.0 Ergon Energy Corporation Limited ABN 50 087 646 062

https://www.ergon.com.au/__data/assets/pdf_file/0020/166106/Soil-Resistivity-Testing.pdf

Date added: December 19, 2013 - Views: 1

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TEMPERATURE AND WATER RESISTIVITY - Kansas Geological Survey

TEMPERATURE AND WATER RESISTIVITY For shale-free formations, the conduction of electrical current is almost entirely carried by ions in the formation water.

http://www.kgs.ku.edu/PRS/Info/pdf/doveton3.PDF

Date added: December 13, 2011 - Views: 22

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Application Note Volume and Surface Resistivity Measurements ...

Surface resistivity is defined as the electrical resistance of the surface of an insulator material. ... ing calculation and displays the volume resistivity reading: K

http://www.keithley.com/data?asset=6069

Date added: October 20, 2011 - Views: 18

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A practical guide to earth resistance testing

Measuring Earth Resistance for Electrical Grounding ... complex formulas for the calculation of the resistance to earth ... and earth resistivity to earth resistance.

http://www.weschler.com/_upload/sitepdfs/techref/gettingdowntoearth.pdf

Date added: December 23, 2011 - Views: 329

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1. Soil Resistivity Testing - Pangonilo

2.1 APPARENT RESISTIVITY CALCULATION ... Soil resistivity can vary significantly both with depth, ... electrical centre of the earthing systems being tested.

http://s.pangonilo.com/index.php?sdmon=files/Earthing_Fundamentals.pdf

Date added: May 8, 2014 - Views: 1

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Evaluation of Soil Resistivity - Technical Toolboxes Inc

Page xvi Evaluation of Soil Resistivity Measurement Techniques List of Figures 3.36 Correcting for Shifts in the Schlumberger Apparent Resistivity Curve

http://www.ttoolboxes.com/documents/Table_of_Contents/L52127toc.pdf

Date added: November 25, 2011 - Views: 27

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Duct Bank Heating Calculations are Essential for Critical ...

Definitions utilized in the calculation ... This is identified by the soil thermal resistivity ... illustrates that most electrical duct bank installations ...

http://neher-mcgrath.com/Heating_Calculations.pdf

Date added: October 26, 2011 - Views: 73

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IELECTRICAL RESISTIVITY, MAGNETIC SUSCEPTIBILITY, AND

Electrical Resistivity, Magnetic Susceptibility and Thermoelectric Power of PtGa2 Li-Shing Hsu, Lu-Wei Zhou,* F. L. A. Machado,t W. Gilbert Clark

http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA225035

Date added: July 2, 2013 - Views: 1

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THEORETIC CALCULATION OF ROCKS ELECTRICAL RESISTIVITY AND ...

2 calculations for some solutions are presented in fig. 1. The study held by A.Ryjov, demonstrated, that the connection of electrical conductivity with salt ...

http://istina.msu.ru/media/publications/articles/871/334/433813/SAG02ptrf_P2VSh.pdf

Date added: March 5, 2014 - Views: 1

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X. ELECTRICAL RESISTIVITY of SOME METALLIC ELE'TS COMMERCIAL

electrical resistivity in several ... indicated on the graph sheet for calculation of resistivity is either ... Electrical Resirttfvity section for an explanation ...

http://www.bnl.gov/magnets/Staff/Gupta/cryogenic-data-handbook/Section10.pdf

Date added: February 15, 2012 - Views: 2

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The Effect of Soil Thermal Resistivity (RHO) on Underground ...

The Effect of Soil Thermal Resistivity (RHO) ... electrical power engineer should take from this ... Calculation of continuous current

http://www.decagon.com/assets/Uploads/The-Effect-of-Soil-Thermal-Resistivity-RHO-on-Underground-Power-Cable-Installation3.pdf

Date added: February 10, 2012 - Views: 40

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2. Electrical resistivity methods - UPV

1 2. Electrical resistivity methods The resistivity method is used in the study of horizontal and vertical discontinuities in the

http://personales.upv.es/jpadin/chapter2.pdf

Date added: November 15, 2012 - Views: 2

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Apparent Water Resistivity, Porosity, and Water Temperature ...

Apparent Water Resistivity, Porosity, and Water Temperature of the Madison Limestone and Underlying Rocks in Parts Of Montana, Nebraska, North Dakota,

http://pubs.usgs.gov/pp/1273d/report.pdf

Date added: July 18, 2012 - Views: 7

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Exact formulae for the electrical resistivity t By MARK ...

Exact/ormulae/or the electrical resistivity 491 by calculating the conductivity to lowest order in the scattering potential and taking the reciprocal of ...

http://www.tandfonline.com/doi/pdf/10.1080/00018737500101451

Date added: August 28, 2014 - Views: 1

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CHARACTERISTICS OF DEIONISED WATER - Pro-Analitika

The resistivity and conductivity of water are temperature-dependent. ... Electrical Resistivity Electrical Conductivity TDS in ppm (approx.) 18 10 18,000,000

http://www.pro-analitika.hu/characteristics_of_deionized_water.pdf

Date added: August 4, 2014 - Views: 1

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A Technique for Predicting Soil Resistivity and Earthing ...

A Technique for Predicting Soil Resistivity and Earthing ... The earthing of electrical ... the more confidence you can have in the calculation.

http://www.esnsa-eg.com/researchFiles/41.pdf

Date added: March 11, 2013 - Views: 1

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The Fundamental Conductivity and Resistivity of Wa...

The Fundamental Conductivity and Resistivity of Water ... tivity measurement and calculation accuracy. ... Noyes, The Electrical Conductivity of Aqueous Solutions ...

http://www.snowpure.com/docs/fundamental-conductivity-and-resistivity-of-water.pdf

Date added: January 28, 2012 - Views: 13

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Lattice electrical resistivity of magnetic bcc iron from ...

Lattice electrical resistivity of magnetic bcc iron from first-principles calculations ... The first-principles calculation of the electrical resistivity

http://www.homepages.ucl.ac.uk/~ucfbdxa/pubblicazioni/PhysRevB.85.024102.pdf

Date added: June 25, 2013 - Views: 1

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CVD SILICON CARBIDE ™ - Dow Chemical Company

CVD SILICON CARBIDE — Engineered to Perform Controlled resistivity grades of CVD SILICON CARBIDE excel in high temperature (>1500°C), wear and chemical

http://www.dow.com/assets/attachments/business/gt/advanced_ceramics/cvd_silicon_carbide/tds/cvd_silicon_carbide.pdf

Date added: February 16, 2012 - Views: 19

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The Fundamental Conductivity and Resistivity of Water

The Fundamental Conductivity and Resistivity of Water By Truman S. Light, Stuart Licht, Anthony C. Bevilacqua, and Kenneth R. Morash Mettler-Toledo Thornton, Inc.

http://us.mt.com/us/en/home/supportive_content/know_how/Paper-THOR-Fundamentals-Cond-Res-08-2004/_jcr_content/download/file/file.res/Fundamental_Conductivity_and_Resistivity_of_Water_Oct09.pdf

Date added: September 11, 2013 - Views: 1

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PIPELINE - Resistivity Surveys - BAC Corrosion Control Ltd

Method Statement - Resistivity Surveys Page 3 of 6 1 INTRODUCTION This Method Statement covers describes the general technique of carrying out a soil resistivity

http://www.bacgroup.com/Global/BAC/Method%20Statements/Test%20and%20Inspections/PIPELINE%20-%20Resistivity%20Surveys.pdf

Date added: June 1, 2012 - Views: 4

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Thermal conductivity and electrical resistivity of Armco iron

T ABLE 2. Smoothed values for the thermal conductivity, electrical resistivity, and Lorenz jilll ction of I3M I A nnco iron T empera· Thermal

http://nvlpubs.nist.gov/nistpubs/jres/71C/jresv71Cn4p285_A1b.pdf

Date added: May 25, 2013 - Views: 2

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Underground Power Cable Installations: Soil Thermal Resistivity

Underground Power Cable Installations: Soil Thermal Resistivity By: ... resistivity measurements. Inst. of Electrical ... calculation of temperature rise and load

http://www2.decagon.com/assets/Uploads/UndergroundPowerCableInstallationsSoilThermalResistivity.pdf

Date added: January 21, 2014 - Views: 1

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Boundless Electrical Resistivity Tomography BERT 2 { the user ...

Boundless Electrical Resistivity Tomography BERT 2 { the user tutorial ... sub-problem is used to update the resistivity model, a forward calculation is carried out and

http://www.resistivity.net/download/bert-tutorial.pdf

Date added: March 12, 2012 - Views: 4

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Conversion and calculation-20100909 - JVL

such as T0 = 293.15 K = 20°C at which the electrical resistivity ρ ( T0) is known. Calculator: Ohm's law Table of typical loudspeaker cables

http://www.jvl.dk/files/_2011clean/pdf/conversion%20and%20calculation-20100909.pdf

Date added: October 22, 2012 - Views: 4

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ELECTRICAL RESISTIVITY AND CONTACT RESISTANCE OF ELECTRICALLY ...

ELECTRICAL RESISTIVITY AND CONTACT RESISTANCE OF ELECTRICALLY ... A field calculation is done under-stand the situation. Electrical field of a model contact

http://www.cired.net/publications/cired2011/part1/papers/CIRED2011_0341_final.pdf

Date added: December 12, 2013 - Views: 2

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Design of Earthing System for a Substation : A Case Study ...

KV substation and simulation for calculation of required ... electrical grid is considered to be safe otherwise we need to ... Resistivity of substation

http://www.theaccents.org/ijacr/papers/conference/icett2012/42.pdf

Date added: April 21, 2013 - Views: 220

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Understanding Soil Resistivity Testing - AEMC

Soil resistivity measurements have a threefold purpose. First, data is used to make sub-surface geophysical surveys as an aid in identifying ore locations, depth to

http://www.aemc.com/techinfo/appnotes/Ground_Resistance_Testers/App-Ground-SoilResistivity.pdf

Date added: January 28, 2012 - Views: 27

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Independently peer reviewed paper - Glass Properties

Only three advanced resistivity calculation methods ... electrical resistivity of glass melts should be established in the future, and a standard reference

http://glassproperties.com/resistivity/ElectrResist_GlassMelts_2005.pdf

Date added: October 18, 2013 - Views: 1

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GROUND MEASURING TECHNIQUES: ELECTRODE RESISTANCE TO REMOTE ...

GROUND MEASURING TECHNIQUES: ELECTRODE RESISTANCE TO REMOTE EARTH & SOIL RESISTIVITY Elvis R. Sverko ERICO, Inc. Facility Electrical Protection, U.S.A.

http://www.electro-specialties.com/technical/downloads/Grounding%20Measurements.pdf

Date added: December 21, 2011 - Views: 23

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Conductivity and Resistivity Values for Copper & Alloys

Conductivity and Resistivity Values for Copper & Alloys Compiled by the Collaboration for NDT Education. C17000 cast and aged (billet) 18-23 7.5E-8--9.6E-8 MHASM2

https://www.nde-ed.org/GeneralResources/MaterialProperties/ET/Conductivity_Copper.pdf

Date added: July 7, 2014 - Views: 1

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NUMERICAL CALCULATION OF BOREHOLE ELECTRICAL SURVEY IN ...

NUMERICAL CALCULATION OF BOREHOLE ELECTRICAL ... resistivity logging, but few reports about borehole electric survey in underground geophysical prospecting[2,12]

http://www.agu.org/wps/ChineseJGeo/49/05/gwb.pdf

Date added: January 15, 2014 - Views: 1

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Calculation of losses - EIHP

Calculation of losses in electric power cables as the base for cable temperature analysis I. Sarajcev1, M. Majstrovic2 & I. Medic1 1Faculty of Electrical Engineering ...

http://www.eihp.hr/~mmajstro/Calculation_of_losses.pdf

Date added: November 11, 2011 - Views: 23

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Resistivity of a Superconductor - Cal Poly Pomona

75 Resistivity of a Superconductor PURPOSE: To investigate the resistive properties of a superconductor as a function of temperature. To gain experience doing ...

http://www.csupomona.edu/~kvandervoort/Adv%20Lab%208%20%20instructions.pdf

Date added: January 28, 2012 - Views: 3

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() 10. RESISTIVITY

We now inquire as to the overall effect of electrical resistivity on plasma confinement. ... When this calculation is done in a torus with all the geometric

http://www.physics.wisc.edu/grads/courses/726-f07/files/Section_10_Resistivity_01.pdf

Date added: March 5, 2014 - Views: 1

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Electric Resistivity Method - JSTOR

The other calculation as- sumes a three-layer material (6). ... that the electrical resistivity method has merit for additional use in their engineering work.

http://www.jstor.org/stable/41236486

Date added: November 22, 2014 - Views: 1

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Soil Resistivity Data Computations; Single and Two - Layer ...

The calculated apparent soil resistivity will be applied in the single layer equations when determining the grid resistance. For the second method, the calculation is ...

http://waset.org/publications/14223/soil-resistivity-data-computations-single-and-two-layer-soil-resistivity-structure-and-its-implication-on-earthing-design

Date added: December 16, 2013 - Views: 2

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Practical Volume Resistivity Measurements

Practical Volume Resistivity ... guarded-ring testing of volume resistivity of solid, homogeneous electrical insulating ... formula for calculation of

http://www.esdproducts.biz/Instrumentation/ApplicationNotes/apne-0002.pdf

Date added: July 5, 2012 - Views: 10

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Tutorial : 2-D and 3-D electrical imaging surveys

2.8 The parameters in the sensitivity function calculation at a ... 1.1 Basic resistivity theory The purpose of electrical surveys is to determine the subsurface ...

http://pangea.stanford.edu/research/groups/sfmf/docs/DCResistivity_Notes.pdf

Date added: December 22, 2011 - Views: 17

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2. Electrical resistivity methods

1 2. Electrical resistivity methods The resistivity method is used in the study of horizontal and vertical discontinuities in the

http://hendragrandis.files.wordpress.com/2008/03/chapter2.pdf

Date added: December 28, 2013 - Views: 1

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Types of Models of Service Life of Reinforcement: The Case of ...

Types of Models of Service Life of Reinforcement: The ... electrical resistivity for the calculation of reinforcement service life” 5th Canmet/ACI Int.

http://www.issres.net/journal/index.php/crl/article/viewFile/101/48

Date added: March 5, 2014 - Views: 1

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The Electrical Resistivity of Ultra-Thin Copper Films

The Electrical Resistivity of Ultra-Thin Copper Films Ernst Schmiedla, Peter Wissmanna, and Hans-Ulrich Finzelb a Institut f¨ur Physikalische und Theoretische Chemie ...

http://www.znaturforsch.com/s63a/s63a0739.pdf

Date added: May 4, 2014 - Views: 1

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Resistance and Resistivity - Leitfähigkeitsmessgeräte und ...

RCF calculation and thus resistivity is measured in a simple ... Electrical Energy Electrical Energy Measuring Point. 4 ... UX MCP-HT800 6 Applications

http://www.nh-instruments.de/download/Mitsubishi_englisch.pdf

Date added: July 10, 2013 - Views: 2