Results 21 to 30 of about 9,820,718 (312)
Annales de l'Institut Henri Poincaré C, Analyse non linéaire, 2014 We present an abstract method in the setting of compact metric spaces which is applied to solve a number of problems in geometric optics. In particular, we solve the one source near field refraction problem. That is, we construct surfaces separating two homogeneous media with different refractive indices that refract radiation emanating ...
Gutiérrez, Cristian E., Huang, Qingbo
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New Journal of Physics, 2013 Strain nano-engineering provides valuable opportunities to create high-performance nanodevices by a precise tailoring of semiconductor band structure.
Alvarado Tarun +5 more
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IDENTIFIKASI STRUKTUR DASAR SMARANDACHE NEAR-RING
Barekeng, 2013 Penelitian ini membahas identifikasi struktur-struktur tersebut melalui definisi dan teorema dengan tahapan sebagai berikut : mengidentifikasi struktur ring dan perkembangannya seperti lapangan, near-ring dan near-field, mengidentifikasi struktur dasar ...
Yohana Y. Bakarbessy +2 more
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Terahertz-Band Channel and Beam Split Estimation via Array Perturbation Model
IEEE Open Journal of the Communications Society, 2023 For the demonstration of ultra-wideband bandwidth and pencil-beamforming, the terahertz (THz)-band has been envisioned as one of the key enabling technologies for the sixth generation networks.
Ahmet M. Elbir +4 more
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Shock and Vibration, 2018 With the combination of model experiment and numerical simulation, we explore the effect of collapse height, weight, and pipe-soil stiffness ratio on dynamic strain of shallow buried metal pipe under the collapse impact load.
Min Wang +5 more
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Recent Trends and Challenges in Near-Field Wireless Power Transfer Systems
IEEE Open Journal of the Solid-State Circuits Society, 2023 In recent years, wireless power transfer (WPT) has become a widespread method for charging and powering devices, including but not limited to consumer electronics, industrial applications, electric vehicles, medical devices, and sensor nodes.
Elisabetta Moisello +3 more
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Wireless Power Transfer Efficiency Formula Applicable in Near and Far Fields [PDF]
Journal of Electromagnetic Engineering and Science, 2019 Microwave-based wireless power transfer in the near field (up to about 10 m) is now drawing much interest since the transfer range when using current magnetic induction or magnetic resonance methods is limited in current industry.
Yongwook Kim +4 more
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True near field versus contrast near field imaging
Optics Express, 2006 We demonstrate that in near field imaging, interaction between light and sample can be divided into two main areas: the true near field and the contrast near field domain. We performed extensive numerical simulations in order to identify the limits of these areas, and to investigate contrast near field imaging in which much easier propagation ...
Masson, Jean-Baptiste, Gallot, Guilhem
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Near-Field-Focused Microwave Antennas: Near-field shaping and implementation [PDF]
IEEE Antennas and Propagation Magazine, 2017 Focusing the electromagnetic field radiated by an antenna at a point in the antenna near-field (NF) region is a wellknown technique to increase the electromagnetic power density in a size-limited spot region close to the antenna aperture. This article encompasses the basic working principles and the applications of the NF-focused (NFF) microwave ...
Nepa, Paolo, Buffi, Alice
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Waveguide group velocity determination by spectral interference measurements in near-field optical scanning microscopy [PDF]
, 2006 Measurement of spectral interference with a near-field scanning optical microscope is used to determine directly the variation of group velocity between modes of a planar slab waveguide as the modes propagate along the ...
J.J. Baumberg +13 more
core +2 more sources