نتایج جستجو برای: electrical field
تعداد نتایج: 954775 فیلتر نتایج به سال:
The damping vibration characteristics of magneto-electro-viscoelastic (MEV) nanobeam resting on viscoelastic foundation based on nonlocal strain gradient elasticity theory (NSGT) is studied in this article. For this purpose, by considering the effects of Winkler-Pasternak, the viscoelastic medium consists of linear and viscous layers. with respect to the displacement field in accordance with th...
Magnetic induction tomography (MIT) is a promising modality for noninvasive imaging due to its contactless technology. Being a non-contact safe imaging technique, MIT has been an appropriate method in compare to other electrical tomography. In this imaging method, a primary magnetic field is applied by excitation coils to induce eddy currents in the material to be studied and a secondary magnet...
Introduction: There is many ways to assessing the electrical conductivity anisotropyof a tumor. Applying the values of tissue electrical conductivity anisotropyis crucial in numerical modeling of the electric and thermal field distribution in electroporationtreatments. This study aims to calculate the tissues electrical conductivityanisotropy in patients with sarcoma tumors using diffusion tens...
We present a rapid electrical lysis method using structured gold electrodes in a microfluidic device. This strategy is capable of efficient and high throughput lysis of bacteria to prepare intracellular genomic materials for subsequent analysis. High electrical field at the tips of structured gold electrodes eliminates the requirement of high voltage. We have used AC voltage for lysis, and show...
The nonresonant beat-wave excitation of relativistic plasma waves is studied in two-dimensional simulations and experiments. It is shown through simulations that, as opposed to the resonant case, the accelerating electric fields associated with the nonresonant plasmons are always in phase with the beat-pattern of the laser pulse. The excitation of such nonresonant relativistic plasma waves is s...
The dynamics of a point charged particle that moves in a medium of elastic scatterers and is driven by a uniform external electric field is investigated. Using rudimentary approaches, we reproduce, in one dimension, the known results that the typical speed grows with time as t and that the leading behavior of the velocity distribution is e2uvu 3/t. In spatial dimension d.1, we develop an effect...
It is shown that the random electric fields of charged dislocations in insulators should cause appreciable broadening of sharp resonance lines such as spin-resonance signals. The degree of broadening is very sensitive to the screening of the dislocations by charged point defects. Since the shape of the inhomogeneously broadened resonance line monitors the distribution of the internal fields, th...
Transcranial Magnetic Stimulation, or TMS, is a technique in which a brief electrical current passes through a coil of wires, thereby generating a strong magnetic field that is perpendicular to the axis of the coil. The magnetic field can pass through tissues such as skin, muscle, and bone and extend into the brain. The rapidly rising and falling magnetic field generates a brief electrical disc...
We study the electrostatic properties of charged particles trapped at an interface in a water-in-oil microemulsion. The electrostatic potential and the counterion distribution in the water droplet are given in terms of the ratio of the Debye screening length kappa(-1) and the droplet radius R. In the limit R-->infinity we recover the well-known results for a flat interface. Finite-size correcti...
We demonstrate that charged particles in a sufficiently intense standing wave are compressed toward, and oscillate synchronously at, the antinodes of the electric field. We call this unusual behavior anomalous radiative trapping (ART). We show using dipole pulses, which offer a path to increased laser intensity, that ART opens up new possibilities for the generation of radiation and particle be...
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