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Showing 1 to 19 of 19 for “"Ohm's law"”.
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A Microwave Technique for the Study of Deviations From Ohm's Law in High Resistivity Semiconductors
Made available in DSpace on 2014-12-04T21:03:20Z (GMT). No. of bitstreams: 1 6101662.pdf: 3479399 bytes, checksum: 116c1cb56cfb838095ec2a0865b06fb9 (MD5) Previous issue date: 1961
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A history of Ohm's Law: Investigating the flow of electrical ideas through the instruments of their production
… dive into the electrical work of Georg Simon Ohm. It is tightly focused on the period 1825-1827 when he developed and published the famous law we now think of as “Ohm’s law”. This work differs from previous studies of Ohm’s investigations by putting material culture at its heart. Using Ohm’s …
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The limits of Brune's impedance
… class offers an alternative way of formulating Ohm's law in the time domain by means of a reflectance, a special Möbius transformation of the impedance formula. Reflectance offers an alternative means of expressing Ohm's law by means of wave propagation. This Möbius transformation also allows …
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Neuromorphic computing systems : crystalline resistive random access memory
… of electrical spikes according to Kirchoff's laws and Ohm's law. This thesis presents Silicon (Si)-based crystalline resistive random-access memory (crystalline RRAM) artificial synapses for neuromorphic computing. The main scaling bottleneck is poor temporal and spatial uniformity of …
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A finite difference forward model for MEG and EEG
… of the principle of reciprocity combined with Ohm's Law and the Biot Savart Law to build a model of the human magnetoencephalogram that is much faster to compute than the current state of the art. The model uses an existing finite difference model for electroencephalography and modifies it to …
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Modeling of high enthalpy flows for hypersonic re-entry and ground-based arc-jet testing
… using a Poisson equation and the generalized Ohm's law. A standard two-temperature model is implemented to account for non-equilibrium effects. A numerical method based on the streamline upwind Petrov-Galerkin (SUPG) finite element formulation is utilized. A two-way loose coupling strategy …
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"Some properties of silicon p-""i""-n diodes compensated with gold"
… J-V characteristic of these diodes follows Ohm's law at the lowest injection levels. At slightly higher levels the current density in many cases is very nearly proportional to the cube of the applied, voltage. At still higher injection levels the current develops an oscillatory component …
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The influence of Hall currents, plasma viscosity and electron inertia on magnetic reconnection solutions
… is modified in the presence of generalized Ohm's law which includes both Hall current and electron inertia contributions. In contrast to the closed X-point collapse geometry adopted for compressible plasmas previously, we find it more convenient to explore this problem using an open …
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EXPERIMENTAL STUDIES OF QUANTUM OSCILLATIONS IN THE TRANSVERSE MAGNETORESISTANCE OF SINGLE-CRYSTALLINE, ULTRAPURE MAGNESIUM: NON-OHMIC EFFECTS.
We report here the observation of non-ohmic behavior in the dominant oscillatory component (the cigar component) of ρ('H) in ultrapure magnesium when the magnetic field, 'H, is parallel to [0001] and the current density, 'J, lies in the basal plane. In order to study this new phenomenon …
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The Nonisothermal Stage of Magnetic Star Formation
… is determined by a newly-derived generalized Ohm's law, which accounts for the contributions of both elastic and inelastic collisions to ambipolar diffusion and Ohmic dissipation. The species abundances are calculated using an extensive chemical-equilibrium network. The thermal evolution of …
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Attitude Dynamics of Debris Resulting From Upper Stage Fragmentation in Low Earth Orbit
… by Maxwell's equations. and the generalized Ohm's law is set up a Poisson problem with Neumann boundary conditions. The electrical potential, solution of Poisson problem and calculated by a finite element solver, defines the density current in the body and thus determines the torque applied …
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Experimental investigation of the trigger problem in magnetic reconnection
… We model the onset using an empirical Ohm's law and current continuity, which is maintained by ion polarization currents associated with the mode. The model reproduces the exponential growth of the reconnection electric field, and the model growth rate agrees well with the …
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Nonlocal ballistic and hydrodynamic transport in two-dimensional electron systems
… onset of non-diffusive transport regimes, where Ohm's law is no longer valid. Within these non-diffusive regimes, the hydrodynamic regime occurs when momentum-conserving electron-electron scattering length scale is smaller than the device length scale (usually at intermediate temperatures). On …
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Magnetohydrodynamic Effects On Mixed Convection Flows In Channels And Ducts
… of an external imposed magnetic field using the Ohm's law and the definition of the Lorentz force. Moreover a description of the various kinds of boundary conditions is given, with particular emphasis given to their practical realization. Chapter three, four and five describe the solution …
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Cio-cio-san no yuutsu: memoirs of magnetogenesis and turbulent dynamo theory
… of the thermal battery term in the General Ohm's Law as a consequence of the two-fluid approximation of a plasma, derivation of the Induction Equations incorporating the aforementioned battery term, introduction and discussion of the Chaplygin Gas and its place in the field of Cosmology, …
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Cio-cio-san no Yūutsu: memoirs of magnetogenesis and Turbulent Dynamo Theory
… of the thermal battery term in the General Ohm's Law as a consequence of the two-fluid approximation of a plasma, derivation of the Induction Equations incorporating the aforementioned battery term, introduction and discussion of the Chaplygin Gas and its place in the field of Cosmology, …
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Numerical methods for frequency dependent line parameters with applications to microstrip lines and pipe-type cables
… system, an impedance matrix is then built using Ohm's law and the concept of Geometric Mean Distances (GMD). Secondly, the current distributions in the subconductors are solved from the telegrapher's equations. Thirdly, a linear current distribution is evaluated from the results of the previous …
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Weakly collisional electrostatic simulations for laboratory astrophysics applications
… of the terms one includes in the generalized Ohm's law to the physics the scheme can capture.<br/><br/>Chapter 6 lays out the discretized numerical approach to computing the solution of the relevant equations, explains the overall structure of the code, and describes the different algorithms …
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Influence of external environment on fluid/ion transport in confined nanoscale systems
… monotonic increase in the current, following the Ohm's law. However, at a critical voltage V_(LI), the current increases infinitesmely postulating a novel limiting resistance regime (LRR) in contradiction to self diffusion mechanism. A push in voltage manifests a second critical voltage V_(LII), …