Results 21 to 30 of about 944,677 (267)

Stress redistribution in individual ultrathin strained silicon nanowires: a high-resolution polarized Raman study

open access: yesNew 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
doaj   +1 more source

IDENTIFIKASI STRUKTUR DASAR SMARANDACHE NEAR-RING

open access: yesBarekeng, 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
doaj   +1 more source

The near field refractor

open access: yesAnnales 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
openaire   +4 more sources

Terahertz-Band Channel and Beam Split Estimation via Array Perturbation Model

open access: yesIEEE 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
doaj   +1 more source

True near field versus contrast near field imaging

open access: yesOptics 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
openaire   +3 more sources

Recent Trends and Challenges in Near-Field Wireless Power Transfer Systems

open access: yesIEEE 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
doaj   +1 more source

Study on Dynamic Strain Regularity and Influencing Factors of Shallow Buried Metal Pipe under Collapse Impact Load

open access: yesShock 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
doaj   +1 more source

Computational Lens for the Near Field

open access: yesPhysical Review Letters, 2004
A method is presented to reconstruct the structure of a scattering object from data acquired with a photon scanning tunneling microscope. The data may be understood to form a Gabor type near-field hologram and are obtained at a distance from the sample where the field is defocused and normally uninterpretable.
Carney, P. Scott   +5 more
openaire   +5 more sources

Vectorial near-field coupling [PDF]

open access: yesNature Nanotechnology, 2019
The coherent exchange of optical near fields between two neighboring dipoles plays an essential role for the optical properties, quantum dynamics and thus for the function of many naturally occurring and artificial nanosystems. These interactions are inherently short-ranged, extending over a few nanometers only, and depend sensitively on relative ...
Martin Esmann   +9 more
openaire   +3 more sources

Wireless Power Transfer Efficiency Formula Applicable in Near and Far Fields [PDF]

open access: yesJournal 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
doaj   +1 more source

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