Introduction Recently an emerging RF coil technology based on a new nanostructured material was introduced [1]. The nanomaterial can be macroscopically configured in a ribbon or string form and is comprised of a dense array of carbon nanotubes. The macroscopic configuration is mechanically robust and is held together densely by van der Waals forces. It was demonstrated in [1] that this material...

This paper presents a new method called vespiary regular hexagonal (VRH) model in order to calculate parasitic capacitance between conductor wire filaments of one turn of coil (OTC) and between conductor wire filaments and liner and also total capacitance of one turn of the helix magneto flux cumulative generator (MCG) coil include single-layer conductor wire filaments in form of rectangular cr...

Introduction In this contribution, we present a multi-channel T/R coil for use in a 9.4T animal scanner system. Each coil element comprises a composite right/left-handed (CRLH) metamaterial transmission line (MTL). Eight of these elements were arranged in a circular manner to constitute a multi channel coil. MTLs offer the feature of a homogenous current distribution along the line when they ar...

I n June, 1960, Ahrams, Hudson, and Lightwood' reported the use of the inductive coupled cardiac pacemaker for the treatment of three patients with complete heart block. T h e method is illustrated in FIGURE 1. A pulse generator is attached by a flexible lead to a n external primary coil that is strapped to the skin over the implanted secondary coil, the ends of which are the myocardial electro...

A topological existence proof is given for a figure-eight periodic solution of the equal mass three-body problem. The proof is based on the construction of a Wazewski set W in the phase space. The figure-eight solution is then found by a kind of shooting argument in which symmetrical initial conditions entering W are followed under the flow until they exit W . A linking argument shows that the ...