Mechanical forces have long been studied in relation to stem cell differentiation or cell migration, however, their significance during brain and neural circuit formation are poorly understood. We present a magnetic gradient platform that allows investigation of small scale forces acting on arrays of neurons in parallel. The approach draws magnetic nanoparticles within neurons towards patterned...

We performed a new coupled circuit numerical simulation of eddy currents in an open compact magnetic resonance imaging (MRI) system. Following the coupled circuit approach, the conducting structures were divided into subdomains along the length (or width) and the thickness, and by implementing coupled circuit concepts we have simulated transient responses of eddy currents for subdomains in diff...

Imaging of electrical current by measuring the magnetic field which it produces requires the solution of the magnetic inverse problem. For a current restricted to a plane, the inverse problem can theoretically be solved by a linear spatial filtering method. We have demonstrated experimentally that currents restricted to the surface of a printed circuit board can be imaged using this method. To ...

This paper introduces a new concept for the magnetic field in a Hall-effect thruster. The Magnetic Interference Hall Accelerator (MIHA) uses independent magnetic circuit elements to put its peak magnetic field outside its exit plane. As a result, the zone of minimum electron mobility is outside its exit plane, as well as its ion acceleration zone. Wall-effects are reduced, and ion bombardment o...

2014 As will be described elsewhere in this conference by Mercereau, when a superconducting film ring of appropriate geometry is placed in a time varying magnetic field, there will be a quantized Faraday induction signal in the ring which will be periodic in the applied flux with a period ~0 = h/2e = 2.07 10-7 gauss.cm2. Experimentally the induced emf is detected by inductively coupling the rin...

The microbeam system at the Radiological Research Accelerator Facility (RARAF) currently has a beam spot size of 0.8 microns in diameter. While this spot size is small enough to hit a targeted spot in the nucleus of a cell with a high degree of certainty, researchers at RARAF hope to accurately target even smaller components of cells in the future. This paper discusses a technique used to measu...

Permanent magnet wall-climbing robots are widely used in the maintenance of tanks petrochemical industry and overhaul large-pressure pipelines hydropower industry. One difficulties is to achieve safe reliable adsorption robots. Based on Halbach array, a double-layer superposition magnetic circuit magnetization method designed this paper. Under same constraints, force permanent chuck increased b...