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Topic: Electrode

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	Electrode - Wikipedia, the free encyclopedia
		A bipolar electrode is an electrode that functions as the anode of one cell and the cathode of another cell.
		In a vacuum tube or a semiconductor having polarity (diodes, electrolytic capacitors) the anode is the positive (+) electrode and the cathode the negative (−).
		Depending upon the process, the electrode is either consumable, in the case of gas metal arc welding or shielded metal arc welding, or non-consumable, such as in gas tungsten arc welding.
	en.wikipedia.org /wiki/Electrode (542 words)

	Electrochemistry Dictionary
		An electrode that is shared by two series-coupled electrochemical cells in such a way that one side of the (usually planar) electrode acts as an anode in one cell and the other side acts as a cathode in the other cell.
		In case of an electrode reaction, the electrode itself is considered one of the "reactants." An electrode reaction is a heterogeneous charge-transfer reaction.
		An electrode reaction is considered to be under “diffusion control” when the overall rate of the reaction is is controlled by the rate of the diffusion of the reactants to the electrode surface rather than the rate of the reaction itself.
	electrochem.cwru.edu /ed/dict.htm (11199 words)

	Standard Electrode Potentials
		The electrode potential depends upon the concentrations of the substances, the temperature, and the pressure in the case of a gas electrode.
		The standard electrode potentials are customarily determined at solute concentrations of 1 Molar, gas pressures of 1 atmosphere, and a standard temperature which is usually 25°C. The standard cell potential is denoted by a degree sign as a superscript.
		The maximum voltage which can be produced between the poles of the cell is determined by the standard electrode potentials under the standard conditions under which those potentials are defined.
	hyperphysics.phy-astr.gsu.edu /hbase/chemical/electrode.html (1055 words)

	OMEGA ENGINEERING - Electrode Basics
		In summary, the measuring electrode delivers a varying voltage and the reference electrode delivers a constant voltage to the meter.
		If an electrode should become dry, it is best to place it in some tap water for a half hour to condition the glass.
		Electrode demise can usually be characterized by a sluggish response, erratic readings or a reading which will not change.
	www.omega.com /techref/ph-3.html (832 words)

	BAS FAQ: EC Electrodes
		Better potential control is achieved using a potentiostat and a 3 electrode system, in which the potential of one electrode (the working electrode) is controlled relative to the reference electrode, and the current passes between the working electrode and the third electrode (the auxiliary electrode).
		Decreasing the size of the electrode to micron dimensions (microelectrodes) decreases the iR drop at the electrode, decreases the electrode capacitance (which allows a faster scan rate to be used for cyclic voltammetry), and changes the diffusion to the electrode surface from linear to radial.
		Since the potential of a chloride-containing reference electrode is sensitive to chloride concentration, the electrode must be stored with the frit immersed in a solution that is identical in composition and concentration to the reference electrode solution (e.g., 3 M sodium chloride for the BASi silver/silver chloride reference electrode).
	www.bioanalytical.com /products/ec/faqele.html (2621 words)

	Pokemon Crystal Pokemon of the Day: Electrode (#101) - IGN FAQs
		Though Electrode don't appear in the wild naturally in GSC, you are permitted to catch any or all of the three Electrode you must defeat in Team Rocket's underground hideout in Mahogany Town (they're being used to power the machine creating the signal that is enraging Gyarados at the Lake of Rage).
		Electrode's Defense ain't all that great and his only weakness is to a physical type, so packing this move should ensure at least some degree of enhanced survivability for our rotund friend.
		At 198 Electrode's Attack is incredibly pathetic, but he can nonetheless use Explosion effectively thanks to both its amazing 250 base power and the fact that the move halves your opponent's Defense for the one turn in which it is employed (so it is, for all intents and purposes, a 500 base power attack).
	faqs.ign.com /articles/391/391416p1.html (1521 words)

	Reference Electrodes (Site not responding. Last check: 2007-10-22)
		The purpose of the reference electrode is to complete the measuring circuit and provide a stable and reproducible potential against which the indicator electrode is compared.
		The electrode is a silver wire that is coated with a thin layer of silver chloride either by electroplating or by dipping the wire in molten silver chloride.
		The reference electrode is immersed into an intermediate volume filled with an electrolyte solution that is connected to the main chamber of the cell with a Luggin capillary.
	chem.ch.huji.ac.il /~eugeniik/refelectrodes.htm (2100 words)

	Electrode Placement
		The following test was performed to measure the effects of electrode placement on signals originating in various parts of the brain.
		A fish bowel approximately the size of a human skull was outfitted with silver chloride electrodes epoxied to the sides of the bowel.
		A set of electrode were chosen to simulate the required placement and connected to the F1000 preamplifier.
	www.focused-technology.com /electrod.htm (559 words)

	Ag/AgCl Reference Electrode
		Vycor® porous glass is available in 4 mm diameter rod and serves as the ionicly conducting electrical pathway between the inside of the reference electrode and the bulk of your cell.
		The electrical resistance of the reference electrode 'frit' is an important factor in determining the stability and speed of your potentiostat in actual use.
		If an electrode needs to be 'revived' after abuse or prolonged storage, the first step is to disassemble the electrode and remove the silver wire from the electrode shell that surrounds it.
	www.consultrsr.com /resources/ref/agcl.htm (1048 words)

	ESG Corporation - Speedylectric Electric Steam Generators and Electric Boilers
		Since the electrodes are always placed nearer to each other than to any other part of the boiler, the path of least resistance is a strait line from electrode to electrode.
		If the electrodes are immersed in the water to a depth on one inch and they are one inch in diameter, the segment of current carrying water will be bounded on four planes, each one-inch wide and the cross sectional area will be one square inch.
		Electrode steam generators are quick to react to sudden load changes, as there is no delay in transferring heat to the boiler water to produce additional steam.
	www.esgcorp.com (1699 words)

	electrode. The Columbia Encyclopedia, Sixth Edition. 2001-05
		An electrode is usually in the form of a wire, rod, or plate.
		The electrode through which current passes from the metallic to the nonmetallic conductor is called the anode, and that through which current passes from the nonmetallic to the metallic conductor, the cathode.
		In some electric devices, e.g., an electric battery, nonelectric energy is converted to electric energy, causing current to flow within the device from the negative electrode to the positive electrode, so that the anode is the negative electrode and the cathode is the positive electrode.
	www.bartleby.com /65/el/electrode.html (275 words)

	Arc Welding Electrodes,Stainless Steel Electrodes Manufacturer,Arc Welding Electrodes Manufacturer,Stainless Steel ...
		The superb performance of the electrode is ensured by well designed formulation which assists the excellent performance of the electrode in AC/DC (±) in all welding positions.
		The electrodes has an ability to operate on low currents with a soft and steady arc, which is easy to strike and re-strike for all position welding.
		The electrode has an ability to operate on low currents with a soft and steady arc, which is easy to strike and re-strike and suitable for all position welding.
	www.eurekaelectrodes.com /arc-welding-electrodes.html (1506 words)

	Potentiostat stability and your Reference Electrode
		The impedance of a standard laboratory reference electrode is usually determined by the resistance of its isolation junction.
		A double junction reference electrode is used to minimize filling solution contamination of the test electrolyte.
		A 20 kW reference electrode connected to this input forms an RC low pass filter with a 100 nsec time constant.
	www.gamry.com /App_Notes/ReferenceElectrodes/ReferenceElectrodes.htm (1494 words)

	electrode (Site not responding. Last check: 2007-10-22)
		Wet electrode grinder for tungsten welding electrodes ensures correct tip formation of the electrode for better arc striking and arc stability … The welding electrode is one of the electrical poles of the arc used in TIG welding …; and maintain optimum arc conditions the electrode must be ground properly, the tip should …
		Electrode (Marumine in Japanese, Lektrobal in German and Electrode in French) is a fictional character from the Pok mon franchise.
		electrode electric conductor, usually metal, used as either of the two terminals of an electrically conducting medium; it conducts current into and out of the medium, which may be an electrolytic solution as in a storage battery, or a solid, gas… or a solid, gas, or vacuum.
	electrode.blog-daily.info (725 words)

	Tungsten electrode grinder for TIG welding
		The welding electrode is one of the electrical poles of the arc used in TIG welding.
		The Neura tungsten welding electrode grinder is a precision wet grinder which produces accurate and repeatable precision grinding of tungsten electrodes.
		With this system the electrode is guided on to the rim of the diamond grinding wheel so that the point is formed symmetrically and the grinding takes place in correct alignment with the grain structure of the electrode.
	www.topac.com /neutra.html (256 words)

	an introduction to redox equilibria and electrode potentials
		The emf measured when a metal /; metal ion electrode is coupled to a hydrogen electrode under standard conditions is known as the standard electrode potential of that metal /; metal ion combination.
		By convention, the hydrogen electrode is always written as the left-hand electrode of the cell.
		Remember that the standard electrode potential of a metal /; metal ion combination is the emf measured when that metal /; metal ion electrode is coupled to a hydrogen electrode under standard conditions.
	www.chemguide.co.uk /physical/redoxeqia/introduction.html (2410 words)

	WELDING ELECTRODES
		Arc welding electrodes are identified using the A.W.S, (American Welding Society) numbering system and are made in sizes from 1/16 to 5/16.
		The last two digits together, indicate the type of coating on the electrode and the welding current the electrode can be used with.
		The thicker the material to be welded, the higher the current needed and the larger the electrode needed.
	www.metalwebnews.com /howto/weldrod.html (618 words)

	Standard Electrode Potentials
		After studying this section, you will (a) know the meaning of the term "standard electrode potential", (b) understand the relationship between the electromotive force of a cell and the standard electrode potentials of its half cells, (c) be able to use a table of standard electrode potentials in order to calculate the e.m.f.
		The emf of the cell (1.10 V) is the potential difference between the electrodes of the cell, which is the difference between the abilities of the half-cells to attract electrons.
		However, by convention, the standard hydrogen electrode is always written on the left-hand side of the cell.
	www.physchem.co.za /Redox/SEP.htm (659 words)

	lecture (Site not responding. Last check: 2007-10-22)
		By inserting two Pt electrodes in acidified water and connecting a 3V battery across the electrodes, H2 is liberated at the cathode and O2 is liberated at the anode.
		Teflon bonded electrodes prepared from such graphite powders were evaluated for their performance for the reduction of oxygen in KOH electrolyte and we fully expected that the performance will be directly related to the surface area of the graphite powder.
		The use of Teflon bonded electrodes ensured that high surface area electrocatalysts with appropriate aggregate size could now be used in fuel cell electrodes and this led to intensive research on electrocatalysts based on alloy powders, semiconducting oxides and supported precious metal catalysts.
	www.gre.ac.uk /~ta11/lecture.html (5754 words)

	Advanced Geosciences, Inc. - Geophysical Resistivity and IP Imaging Systems and Resistivity Meters
		Such features are; selectable electrode spacing in the instrument, built in roll-along, possibility to shut off electrodes in case the profile ends up against an obstacle, re-addressing of the electrodes in the field and much more.
		The advantage of the graphite electrodes is that they do not corrode as currrent is passed through them.
		By using non-polarizable electrodes, a much better signal can be recorded, free from the polarization noise of a stainless steel electrode.
	www.agiusa.com /index.shtml (2062 words)

	Electrode - Offers for Electrode - exporters, manufacturers, suppliers, wholesale, Traders, factories, Companies (Site not responding. Last check: 2007-10-22)
		Exporters, Suppliers, Manufacturers, factories and distributors related to Electrode.
		Cerium and W electrode:add cerium oxide in the mental W. The advantages of Cerium and W electrode: Without radiation,w...
		This is a device for safety anchoring of the active electrode.
	www.tradekey.com /ks-Electrode (330 words)

	Electrode - a reference guide from Engineeringtalk
		Start with the news release Pump elements in stainless steel and bronze from Lee Products, which we summarised at the time by saying "Pump elements for in-house designed pumps, providing engineers with the benefits of reduced tooling and set-up costs, are available to suit many OEM applications".
		News on the Connectors for pH electrodes from Aerco (February 2006)
		News on the InProR 4010 pH electrode and temperature sensor from Mettler Toledo (October 2000)
	www.engineeringtalk.com /guides/electrode.html (633 words)

	Independent Fabrication (Site not responding. Last check: 2007-10-22)
		We've worked long and hard developing and refining the Tungsten Electrode frame to be as customizable as any other frame we make.
		The Tungsten Electrode's unique, worldwide patent-pending design provides the ultimate in suspension compliance and, at the same time, pedaling performance that exceeds that of any other suspension design on the market today.
		The dw-link is not a marketing device; it is a real world, race proven suspension design based in physical reality, not in the fabricated text of some marketing department.
	www.ifbikes.com /frames2/tungsten-electrode.shtml (402 words)

	Body Vibes - Rife on CD - Electromagnetic Therapy (Site not responding. Last check: 2007-10-22)
		Body Vibes unique electrode arm-bands are comfortable with no electrical sensation experienced during application.
		This new electrode system is placed between one layer of cloth and the users skin.
		The SEAT/BED electrode has been determined to be of significant value, as it enhances the output of the Body Vibes Unit.
	www.bodyvibes.com (614 words)

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