The relationships between calcium and the steady outward currents at the equator of the rat lens were studied using the vibrating probe technique. In a calcium-free medium, the current was greatly increased and it returned to its original level when calcium was restored to the medium. The Ca-free effect was not observed in Na-free medium. Iodoacetate (IAA) inhibited the initial current, but a c...

Introduction: Rapidly switched magnetic field gradients induce eddy currents in the nearby conducting structures of the MRI scanner. These eddy currents in turn generate an opposing and distorting transient magnetic field in the region of interest (ROI) with consequential image distortion. A tailored current pulse is usually applied to minimize the undesired effects of the eddy currents in the ...

Typical components of a metal detector include a transmitter and receiver coil. As depicted in Figure B.1, electric currents that flow in the transmitter coil radiate a primary magnetic field that penetrates the surrounding medium and any nearby metallic object. A timechanging primary magnetic field will induce so-called eddy currents in the buried object, and these currents in turn radiate a s...

In a pioneering work written 30 years ago, Almgren developed a far-reaching regularity theory for area-minimizing currents in codimension higher than 1. Building upon Almgren’s work, Chang proved later the optimal regularity statement for 2-dimensional currents. In some recent papers the author, in collaboration with Emanuele Spadaro, has simplified and extended some results of Almgren’s theory...

This paper describes the design, evaluation, and implementation of a compensation scheme for a measurement voltage transformer (VT) using the hysteresis characteristics of the core. The error of a VT is caused by the primary winding voltage and secondary winding voltage. The latter depends on the secondary current, whereas the former depends on the primary current, which is an aggregate of the ...

The Cosmic Dust Analyzer aboard the Cassini spacecraft consists of a several targets as well as a photomultiplier tube which provide information upon collision with ambient dust particles in Saturn’s magnetosphere. Information includes particle mass, velocity, chemical composition, and charge. The focus of this report is the charge of the dust particles; specifically, the processes by which the...

secondary flow investigation could be regarded as an important issue in open channel flow, in spite of its lower quantity compared to the base flow in the water course. it should be given special consideration because of the influence on some hydraulic factors in open channel, specifically in compound channels. in compound channels' due to the difference in the flow velocity of the main ch...