نتایج جستجو برای: voltage gradient
تعداد نتایج: 232620 فیلتر نتایج به سال:
We report experiments on the control of intrinsic magnetic damping by thermal torque effects produced spin Seebeck effect and anomalous Nernst in a thin layer ferromagnetic metal (Permalloy (Py), ${\mathrm{Ni}}_{81}{\mathrm{Fe}}_{19}$). Damping is measured resonance (FMR) sample excited microwave radiation detected dc-voltage-generated rectification magnonic charge pumping Py film. Application ...
Introduction: Magnetic resonance imaging (MRI) is an important imaging technique to diagnose various diseases. However, patients with an implanted medical device, e.g. pacemakers, cannot benefit from this diagnostic modality. To analyze the adverse effects of MRI on patients with implants, various experimental studies have been performed [1]. It is observed that due to radiofrequency pulses, he...
Intrinsic Threshold Voltage Fluctuations in Decanano MOSFETs Due to Local Oxide Thickness Variations
Intrinsic threshold voltage fluctuations introduced by local oxide thickness variations (OTVs) in deep submicrometer (decanano) MOSFETs are studied using three-dimensional (3-D) numerical simulations on a statistical scale. Quantum mechanical effects are included in the simulations employing the density gradient (DG) formalism. The random Si/SiO2 and gate/SiO2 interfaces are generated from a po...
We consider the problem of minimizing the power generation cost by exploiting the microgenerators dispersed in the power distribution network. The proposed strategy requires that the intelligent agents, located at the microgenerator buses, measure their voltage and then actuate the physical layer by adjusting the amount of injected power, according to a feedback control law derived from a proje...
micro-MRI images in (a) wt and in (b) Gbx-2-CKO mice. Regions of the cochlea and semicircular canals can be seen in detail in the context of the Cb. Figure 1. Examples of 2D coronal sections in anterior to posterior direction (A-P) through 3D T1-weighted gradient echo (GRE) micro-MRI image of isotropic resolution of 50μm used for anatomical phenotyping illustrating contrast in the cerebellum (C...
It is well known that existence and accumulation of space charge within the insulating material poses threat to the reliability in the operation of dc power cables. When the cables are loaded under high voltage direct current (HVDC), temperature gradient is developed across the insulation material. In this paper, commercial ac XLPE power cables were used under an application voltage of 80 kV dc...
This paper proposes a new current mirror layout technique to improve matching characteristics in the presence of parameter gradient. Effects of threshold gradients across a mirror on the matching characteristics of current mirrors are discussed. New and the existing layouts are compared with computer simulations for threshold voltage gradients at all angles across the active area. Results show ...
An analytical expression is presented for the voltage response including the transient voltage for a simple ~i.e., no concentration gradients! porous electrode model subject to a sinusoidal input current density. The transient voltage response as a function of the frequency, exchange current density, and double layer capacitance is studied independent of the periodic ~steady state! voltage resp...
Applying magnetic fields has been the method of choice to magnetize non-magnetic materials, but they are difficult to focus. The magneto-electric effect and voltage-induced magnetization generate magnetization by applied electric fields, but only in special compounds or heterostructures. Here we demonstrate that a simple metal such as gold can be magnetized by a temperature gradient or magnetic...
The earth maintains surprisingly large voltage gradients, Ez [V/m], between its surface and a conductive ionosphere above 100 km, with fair-weather measurements averaging about 160 V/m near the surface, positive upwards. These gradients are easily detected but difficult to quantify with accuracies better than a few percent. Data records survive from several sites dating to the early 1900's. Mea...
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