Results 41 to 50 of about 634,894 (330)

A Compact Coupled-Fed Loop Antenna for Mobile LTE Smartphones

open access: yesInternational Journal of Antennas and Propagation, 2018
A coupled-fed loop antenna with Octa-bands operation for long-term evolution (LTE) smartphones is proposed in this paper. The antenna occupies a nonground space of only 6.5 mm × 72 mm, and two wide-band operations can be achieved by exploiting the ...
Ping Wang   +3 more
doaj   +1 more source

A Novel Planar Printed Dual-Band Magneto-Electric Dipole Antenna

open access: yesIEEE Access, 2017
In this paper, a novel planar printed dual-band magneto-electric dipole antenna is proposed. The proposed antenna is composed of a conventional bow-tie patch as an electric dipole, a semi-circular loop that operates as a magnetic dipole, a coplanar ...
Chen-Yang Shuai, Guang-Ming Wang
doaj   +1 more source

Multi-wavelength spatially resolved analysis of quasi-periodic pulsations in a solar flare [PDF]

open access: yes, 2008
Aims. We aim to perform a spatially resolved analysis of a quasi-periodic pulsation event from 8th May 1998 using microwave data from the Nobeyama Radioheliograph and Radiopolarimeter, and X-ray data from the Yohkoh satellite. Methods.
A. R. Inglis   +20 more
core   +1 more source

A Compact Four-Port Coplanar Antenna Based on an Excitation Switching Reconfigurable Mechanism for Cognitive Radio Applications

open access: yesApplied Sciences, 2019
In this paper, we propose a compact four-port coplanar antenna for cognitive radio applications. The proposed antenna consists of a coplanar waveguide (CPW)-fed ultra-wideband (UWB) antenna and three inner rectangular loop antennas. The dimensions of the
Yeonjeong O, Yunnan Jin, Jaehoon Choi
doaj   +1 more source

Emergence of charge order in a staggered loop-current phase of cuprate high-temperature superconductors [PDF]

open access: yes, 2015
We study the emergence of charge ordered phases within a pi-loop current (piLC) model for the pseudogap based on a three-band model for underdoped cuprate superconductors.
Atkinson, W. A., Bulut, S., Kampf, A. P.
core   +2 more sources

Banded versus Single-sided bonded space maintainers: A Comparative Study

open access: yesIndian Journal of Dental Sciences, 2018
Background: The present study is conducted to evaluate and compare the clinical performance of conventional band and loop space maintainer and fiber reinforced composite resin (FRCR) space maintainers.
Sudhir Mittal   +5 more
doaj   +1 more source

Loop Anchor Tension Band Fixation for Olecranon Fractures and Chevron Olecranon Osteotomy

open access: yesTechniques in Hand & Upper Extremity Surgery, 2022
Although tension band wiring is effective for treating olecranon fractures, it is associated with a high reoperation rate because of hardware-related problems. The loop anchor tension band technique is a novel modification of the Arbeitsgemeinschaft für Osteosynthesefragen (AO)-modified tension band wiring technique.
Wei, Ho, Shu-Hsin, Yao, Chun-Ho, Chen
openaire   +2 more sources

Completely flat bands and fully localized states on surfaces of anisotropic diamond-lattice models

open access: yes, 2013
We discuss flat-band surface states on the (111) surface in the tight-binding model with nearest-neighbor hopping on the diamond lattice, in analogy to the flat-band edge states in graphene with a zigzag edge. The bulk band is gapless, and the gap closes
Murakami, Shuichi, Takahashi, Ryuji
core   +1 more source

Strong competition between $\Theta_{II}$-loop-current order and $d$-wave charge order along the diagonal direction in a two-dimensional hot spot model [PDF]

open access: yes, 2015
We study the fate of the so-called $\Theta_{II}$-loop-current order that breaks both time-reversal and parity symmetries in a two-dimensional hot spot model with antiferromagnetically mediated interactions, using Fermi surfaces relevant to the ...
de Carvalho, Vanuildo S.   +4 more
core   +4 more sources

A randomized clinical trial comparing the acceptance of conventional and prefabricated band and loop space maintainers in children with premature loss of primary molar

open access: yesIndian Journal of Dental Research
Objectives: To evaluate and compare the acceptance, comfort, chairside time, and clinical outcomes of conventional and prefabricated band and loop space maintainers in children with premature loss of primary molars. Methods: Sixty children aged 4–8 years
Hem Lata
doaj   +1 more source

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