Results 31 to 40 of about 3,967,206 (349)

Modular Electromagnetic Transducer for Optimized Energy Transfer via Electric and/or Magnetic Fields

open access: yesSensors, 2023
In this paper, a modular electromagnetic transducer that achieves the optimal transfer of energy from the electric and/or magnetic fields is proposed.
George-Claudiu Zărnescu   +2 more
doaj   +1 more source

Comparative cost-effectiveness analyses of cardiovascular magnetic resonance and coronary angiography combined with fractional flow reserve for the diagnosis of coronary artery disease. [PDF]

open access: yes, 2014
According to recent guidelines, patients with coronary artery disease (CAD) should undergo revascularization if significant myocardial ischemia is present.
Pilz, G.   +33 more
core   +1 more source

Embroidered Coils for Magnetic Resonance Sensors [PDF]

open access: yes, 2013
Magnetic resonance imaging is a widely used technique for medical and materials imaging. Even though the objects being imaged are often irregularly shaped, suitable coils permitting the measurement of the radio-frequency signal in these systems are ...
Newton, Michael   +7 more
core   +1 more source

Automatic Resonance Compensation for Efficient WPT via Magnetic Resonance Coupling Using Flexible Coils

open access: yesEnergies, 2021
With the recent proliferation of mobile and wearable devices, wireless power transfer (WPT) has gained attention as an up-and-coming technology to charge these devices.
Sousuke Nakamura   +2 more
doaj   +1 more source

Nuclear Magnetic Resonance Fluorine—Fluorine Coupling Constants [PDF]

open access: yesThe Journal of Chemical Physics, 1964
The pattern of fluorine—fluorine coupling constants is explained on the basis of two mechanisms for nuclear spin—spin coupling: the ``through-bond'' and the ``through-space'' mechanisms. In the former, the interaction proceeds via the electronic structure in the intervening bonds.
Ng, Soon, Sederholm, C.H.
openaire   +2 more sources

Electron spin resonance of single iron phthalocyanine molecules and role of their non-localized spins in magnetic interactions

open access: yesNature Chemistry, 2021
Electron spin resonance (ESR) spectroscopy is a crucial tool, through spin labelling, in investigations of the chemical structure of materials and of the electronic structure of materials associated with unpaired spins.
Xue Zhang   +7 more
semanticscholar   +1 more source

Efficient Experimental Design for Measuring Magnetic Susceptibility of Arbitrarily Shaped Materials by MRI [PDF]

open access: yes, 2018
This work was funded by the Institute for Basic Science, under grant IBS-R015-D1. The SQUID measurement was provided by Dr. Seung-young Park from Korea Basic Science Institute (KBSI).
Seon-ha Hwang, Seung-Kyun Lee
core   +1 more source

CYCLOTRON RESONANCE IN COUPLED BILAYERS IN HIGH MAGNETIC FIELDS [PDF]

open access: yesInternational Journal of Modern Physics B, 2007
We present far-infrared cyclotron resonance measurements on a strongly coupled symmetric GaAs/GaAlAs double quantum well sample. Cyclotron resonance is measured at several discrete wavelengths and tilt angles of the sample with respect to the magnetic field.
Gürtler, A.S.   +4 more
openaire   +1 more source

Optimized Design of Flexible Wireless Charging Coils Using Magnetic Coupling Resonance

open access: yesTheoretical and Natural Science
At present, many devices still use wired charging. There are many lines, and the interface is easy to break. It is not easy to use if the environment is poor. Ordinary wireless charging uses a rigid coil, which is limited in space.
Xingyu Sheng
semanticscholar   +1 more source

Study on frequency characteristics of wireless power transmission system based on magnetic coupling resonance

open access: yes, 2017
In order to study the frequency characteristics of the wireless energy transmission system based on the magnetic coupling resonance, a circuit model based on the magnetic coupling resonant wireless energy transmission system is established. The influence
Liu-Huan Liang   +5 more
semanticscholar   +1 more source

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