Results 101 to 110 of about 1,563,307 (153)

X-Band Metasurface EM Wave Absorber using SRR and Stripline: Model, Design and Implementation

open access: yesJournal of ICT Research and Applications
This paper presents a model, design, and implementation of a metasurface electromagnetic (EM) wave absorber for operation in the frequency range of the X-band.
Budi Syihabuddin   +2 more
doaj   +1 more source

Design of a Photo-Excited Switchable Broadband Reflective Linear Polarization Conversion Metasurface for Terahertz Waves

open access: yesIEEE Photonics Journal, 2018
We present a photo-excited switchable broadband reflective linear polarization conversion metasurface for terahertz waves. The unit-cell structure of the switchable polarization conversion metasurface is composed of metallic disk and split-ring resonator
Jingcheng Zhao   +2 more
doaj   +1 more source

Nonplanarity of unit graphs and classification of the toroidal ones

open access: yes, 2014
The unit graph of a ring R with nonzero identity is the graph in which the vertex set is R, and two distinct vertices x and y are adjacent if and only if x C y is a unit in R.
A. Das   +3 more
semanticscholar   +1 more source

Csoportgyűrűk = Group rings [PDF]

open access: yes, 2012
A következő témakörökben értünk el eredményeket: - algebrák reprezentációelmélete (vizsgáltuk Lie-algebrák burkoló algebrájának filteres multiplikatív bázisát) - véges csoportok reprezentációelmélete és az egész számok feletti csoportgyűrűk ...
Bódi, Béla, Bódi, Viktor
core  

Measurement of Oil-Film Thickness and Observation of Oil Distribution in High-Speed Deep-Groove Ball Bearings

open access: yesTribology Online
High-speed deep-groove ball bearings for the eAxle of electric vehicles must adapt to higher rotational speed conditions, because eAxle motor speed increases to downsize the unit.
Mamoru Tohyama   +9 more
doaj   +1 more source

Effects of inter-resonator coupling in split ring resonator loaded metamaterial transmission lines

open access: yes, 2014
This paper investigates the effects of inter-resonator coupling in metamaterial transmission lines loaded with split ring resonators (SRRs). The study is performed from Bloch mode theory applied to the multiport equivalent circuit model of the unit cell ...
J. Naqui   +4 more
semanticscholar   +1 more source

Performance of a Metamaterial-based 1×2 Microstrip Patch Antenna Array for Wireless Communications Examined by Characteristic Mode Analysis [PDF]

open access: yesRadioengineering, 2019
The theory of characteristic modes (TCM) is used to examine the behavior of hexagonal split ring resonator (HSRR) unit cells employed in the ground plane of a 2-element microstrip antenna array.
E. K. I. Hamad, A. Abdelaziz
doaj  

Ring theory in o-minimal structures [PDF]

open access: yesarXiv
We develop a general ring theory in the o-minimal setting culminating in a description of all the definable rings in an arbitrary o-minimal structure. We show that every definably connected ring with non-trivial multiplication defines an infinite field and it is essentially semialgebraic. A surprisingly strong correspondence between definably connected
arxiv  

On the arithmetic of the join rings over finite fields

open access: yes
Given a collection $\{ G_i\}_{i=1}^d$ of finite groups and a ring $R$, we have previously introduced and studied certain foundational properties of the join ring $\mathcal{J}_{G_1, G_2, \ldots, G_d}(R)$. This ring bridges two extreme worlds: matrix rings
Chebolu, Sunil K.   +5 more
core  

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