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Parametric resonance of a magnetically coupled harvester
Active and Passive Smart Structures and Integrated Systems XII, 2018Parametric excitation has been investigated for several years as an effective way to drive a structure parametrically into large distinctive responses. However, parametric resonance requires a minimum threshold of excitation to be triggered. To reduce the threshold, we propose a two-degree-of-freedom vibration system.
Shahrzad Towfighian, Wei Yang
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Nuclear magnetic resonance coupled microseparations
Magnetic Resonance in Chemistry, 2005AbstractThe increased separation efficiency afforded by reducing the size of the separation column has resulted in ‘microseparations’ becoming an important component in many chemical and biochemical applications. The coupling of microseparations with NMR detection is an area of increasing interest owing to the high structural information of NMR.
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Magnetic Resonance Coupling Systems
2020A magnetic resonance coupling circuit is a circuit topology (circuit structure) that can achieve high efficiency and high power even in the presence of large air gaps. However, when considering the design of these systems, it is important to achieve both high efficiency and the desired power simultaneously.
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MAGIC: Magnetic Resonant Coupling for Intra-body Communication
IEEE INFOCOM 2020 - IEEE Conference on Computer Communications, 2020This paper proposes MAGIC: magnetic resonant (MR) coupling for intra-body communication between implants and wearables. MAGIC includes not only the hardware-software design of the coupled coils and methods of manipulating the magnetic field for relaying information, but also the ability to raise immediate emergency-related alerts with guaranteed ...
Stella Banou +2 more
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Ferromagnetic resonance of exchange-coupled magnetic layers
Physical Review B, 1988The ferromagnetic resonance-line shapes, fields, and intensities of exchange coupled magnetic multilayers are calculated as a function of exchange coupling and number of layers. We find that the number of magnetic excitations equals the number of layer pairs that make up the layered structure.
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Magnetic resonant coupling for magnetic induction wireless communication
IETE Journal of Research, 2013AbstractIn the last decade, magnetic induction (MI) communication has drawn the attention of researchers to alternate the EM communication in some environments, such as the underground environment, littoral environment, underwater environment, and caves.
Di Niu, Kai Shuang, Weigen Li
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On the Use of Magnetically Coupled Resonators for Chirp-Based Timestamping
IEEE Transactions on Instrumentation and Measurement, 2015The knowledge of the time value at which an event of interest occurred is the typical feature needed to perform many kinds of postprocessing in distributed sensor networks. Consequently, network-based distributed systems must support time dissemination in order to ensure that relative clock errors among nodes remain below a certain threshold.
DE ANGELIS, ALESSIO +7 more
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Probe–Sample Coupling in the Magnetic Resonance Force Microscope
Journal of Magnetic Resonance, 2002The magnetic resonance force microscope (MRFM) provides a route to achieving scanned probe magnetic resonance imaging with extremely high spatial resolution. Achieving this capability will require understanding the force exerted on a microscopic magnetic probe by a spatially extended sample over which the probe is scanned.
Suter, A. +3 more
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Double Magnetic Resonance of Coupled Spins
Journal of Applied Physics, 1967A perturbation procedure is introduced to solve for the probability amplitudes of a system of coupled spins under the action of two rf magnetic fields; one a large saturating signal, the other a relatively weak one. The power absorbed when the saturating signal connects two states in the system is affected by the presence of the second signal ...
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A Note on the Magnetic Resonance of Coupled Spin Systems
Journal of the Physical Society of Japan, 1964The magnetic resonance of a coupled spin system is considered phenomenologically. The magnetic resonance modes can be directly determined from the irreducible representations of the space group to which the system belongs. Then, approximate calculation of the frequency and intensity of resonance lines can be made. This approach is convenient especially
Kiiti Siratori, Kay Kohn
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