BACKGROUND Maintaining the quality of magnetic resonance images acquired with the current implantable coil technology is challenging in longitudinal studies. To overcome this challenge, the principle of 'inductive overcoupling' is introduced as a method to tune and match a dual coil system. This system consists of an imaging coil built with fixed electrical elements and a matching coil equipped...

The localization of effects from magnetic coil stimulation is not immediately obvious. We measured the magnetic fields produced by several different coils and compared the results with theoretical calculations. Magnetic stimuli were delivered from a Cadwell MES-10 magnetic stimulator using 3 circular coils (one 9 cm in diameter; two with an angulated extension, 5 and 9 cm in diameter) and twin ...

BACKGROUND Despite TMS wide adoption, its spatial and temporal patterns of neuronal effects are not well understood. Although progress has been made in predicting induced currents in the brain using realistic finite element models (FEM), there is little consensus on how a magnetic field of a typical TMS coil should be modeled. Empirical validation of such models is limited and subject to severa...

This paper proposes a new induction heating (IH) coil using Halbach-arranged coils for cooktop. In general, control inverter is placed on the back side of coil, but by Halbach array coils, magnetic flux leakage to can be prevented without ferrite cores shielding. Further, concentratedly linked pot. First, differences and advantages distribution between conventional IH-coil proposed will describ...

In this paper, we propose a fuel target injection method using electromagnetic coils for fusion power reactors. When current pulse is applied to the coil, iron sabot attracted by force and enters coil. As attenuates, magnetic dissipates, propelled out of coil due inertia. The separated from separator consisting ring-shaped permanent magnets. It found that velocity injected increased some extent...

Introduction Hyperpolarized C substrates have become a promising tool to study real-time metabolic processes in vivo, particularly in the heart. This was first shown using hyperpolarized C pyruvate to characterize cardiac metabolism noninvasively in the pig using a single slice chemical shift imaging (CSI) technique [1]. Recently, rapid multislice imaging of hyperpolarized C pyruvate and bicarb...

A wireless charging system that uses inductive coupling, a process based on electromagnetic induction, for power transfer. The framework comprises of two fundamental components: pad and mobile device within receiving coil. contains transmitting coil creates an alternating magnetic field when connected to source. with is placed in close proximity the pad. generated by induces current receiver co...

In the present research, performance validation of a Heating, Ventilation, and Air Conditioning (HVAC) system operating in a library building was conducted. The operating HVAC system was studied in terms of the provided indoor air conditions and energy consumption level. The fieldwork measurements showed that the HVAC system is not capable of providing the desired indoor air conditions based on...

Abstract In the classical WPT technology, when load coil and receiving are not aligned, power will be significantly reduced. this paper, a new type of named spiral add planar (SAP) is proposed, which can make almost independent its position. The T-type equivalent circuit analysis method used to analyze transmission performance system. By calculating mutual inductance between non-coaxial coils, ...

Purpose: Pediatric MRI is often performed using receive coils designed for adult patients. The mismatch of the receive coils and the pediatric patients can cause degraded image quality [1]. In this work, a 64-channel receive-only phased array dedicated for pediatric body MRI is designed and constructed. This coil array incorporates the quarter-wavelength-balun technique, achieves ideal coil dec...