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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"Electromotive force"”.
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Determination of Heterogeneous Equilibrium From Electromotive Force Measurements
Made available in DSpace on 2014-12-04T23:26:44Z (GMT). No. of bitstreams: 1 0018114.pdf: 2076607 bytes, checksum: d08d7e55b2b406e6cd51173b2f202fb8 (MD5) Previous issue date: 1956
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The electromotive force of certain alkali halide concentration cells
Made available in DSpace on 2016-11-09T23:48:04Z (GMT). No. of bitstreams: 2 5986662_opt.pdf: 2077918 bytes, checksum: 5c414448184fa3a947396daecd51fd00 (MD5) license.txt: 4183 bytes, checksum: 1dcc2037833d76bede73d5717587543b (MD5) Previous issue date: 1914
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The electromotive force produced in solutions by centrifugal action
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1910.
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The Role of Time Variant Resistance and Electromotive Force in Ionic Systems Related to Cell Membranes: The Excitability Properties of Frog Skin and Toad Bladder
… a solution is the sum of two terms: an intrinsic electromotive force (emf.) associated with the gradients of ionic concentrations, and an ohmic potential difference (IR drop) arising when current flows through the system. In order to illustrate the meaning and significance of these two terms, we …
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The Thermodynamics of Highly Solvated Liquid Metal Solutions
… ternary systems Mg-Sb-Bi and Mg-Pb-Bi with an electromotive force cell at 1073 K. The large negative deviations from ideal mixing behavior that are observed in the limiting binary magnesium systems were found to carry over into the ternary systems.
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Rotational speed dependent motor properties
… alternating current (AC) motors experience back electromotive force (EMF) at high rotational speeds, which acts against applied voltage and drops motor efficiency steeply. By reducing the magnetic flux surrounding the coil of the stator, back EMF can be reduced and motor efficiency can be …
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Formal Potential of the Chromate-Chromic System in Sulfuric Acid
… .of this investigation to determine by means of electromotive force measurements the formal potential of the chromate-chromic system in the media, of various concentrations of sulfuric acid.
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Stable Alfven Wave Dynamo Action in the Reversed Field Pinch
… used to calculate the quasi-linear dynamo mean electromotive force, , of Alfven waves. This emf is incorporated into a one-dimensional transport and mean-field evolution code. The changing equilibrium is then fed back to the stability code to complete a computational framework that …
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Harnessing waste heat and reducing wasted lighting : three mechanical structures for efficient energy systems
… a proof-of-concept test setup. The demonstrated electromotive force constant is 82 V/rad/s using a 1 inch diameter, 5500 gauss magnet. Finally, we discuss the application of waste heat harvesting to household water heating, and discuss several designs for a water heater with integrated attachment …
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Numerical study of current collection by an orbiting bare tether
… potential is maintained by the motion-induced Electromotive Force (EMF) or by the power supply, depending on the application of the ED tether. Some part of the positively biased tether is uninsulated and exposed to the ambient plasma, collecting ionospheric electrons. Collected electrons are …
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Super High-speed Miniaturized Permanent Magnet Synchronous Motor
… rotor eddy current loss, torque, and induced electromotive force (back-EMF) are also presented in detail in this dissertation. Some mechanical issues such as thermal analysis, bearing pre-load, rotor stress analysis, and rotor dynamics analysis are also discussed. Different control schemes are …
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Shearing waves and the MRI dynamo in stratified accretion discs
… From our fully nonlinear calculations we find an electromotive force in phase with the toroidal field, which is itself 3π/2 out of phase with the radial (sheared) field at the midplane, and good agreement with our quasi-linear analytics. We have identified an efficient mechanism for generating …
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HTS Magnets: Modelling, Charging and Large Scale Applications
… pumps: the HTS switches. These are used as an electromotive force (emf) source that cycle between an off-state with an average voltage and an on-state with zero resistance. The commutation between the on- and off-state is achieved by applying an AC magnetic field to a DC-current carrying HTS …
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Voltages induced upon telephone lines near three phase transmission lines
Made available in DSpace on 2014-09-18T16:20:56Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) voltagesinducedu00hump.pdf: 2247756 bytes, checksum: 45afad273d7f374859b5b2b557e12d7c (MD5) Previous issue date: 1917
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Estrategia de enseñanza para la transformación de la energía solar y la energía química del agua en energía eléctrica
Las energías alternativas, han surgido como respuesta a la creciente necesidad de generar energía eléctrica con fuentes de energía diferentes a las energías fósiles tradicionales que han causado que el deterioro ambiental aumente de manera significativa. La enseñanza de energías alternativas, no …