Results 31 to 40 of about 310,283 (288)

A dual-grating InGaAsP/InP DFB laser integrated with an SOA for THz generation [PDF]

open access: yes, 2016
We report a dual-mode semiconductor laser that has two gratings with different periods below and above the active layer. A semiconductor optical amplifier (SOA), which is integrated with the dual-mode laser, plays an important role in balancing the ...
Deng, Qiufang   +5 more
core   +1 more source

Miniature Dual-Mode Microstrip Filters

open access: yesIEEE Microwave and Wireless Components Letters, 2007
In order to reduce the size of dual-mode microstrip filters by keeping excellent performance, novel filter geometry is proposed. The novel filter includes a dual-mode resonator based on a meander structure. The effect of input/output feed lines located along a straight line on filter response is investigated for the dual-mode filter.
Görür, A., Karpuz, Ceyhun
openaire   +5 more sources

Comparative Analysis of Operational Structures in Single- and Dual-Mode Distance Learning Institutions in Nigeria

open access: yesInternational Review of Research in Open and Distributed Learning, 2021
This study examined the similarities and differences in the processes and facilities for distance education at National Open University of Nigeria (NOUN), a single-mode distance learning institution, and Obafemi Awolowo University (OAU), Ile-Ife, a dual ...
Taiwo Isaac Olatunji   +1 more
doaj   +1 more source

Balanced dual‐mode SIW filter

open access: yesElectronics Letters, 2019
This Letter proposes a balanced dual‐mode substrate integrated waveguide (SIW) filter for the first time. Based on dual‐mode square SIW cavities, perturbation vias, and balanced ports, the quasi‐elliptic differential mode response with improved selectivity as well as high‐performance common mode suppression can be obtained conveniently.
Peng Chu, Ke Wu
openaire   +2 more sources

Design and Experiment of Lightweight Dual-Mode Automatic Variable-Rate Fertilization Device and Control System

open access: yesAgriculture, 2023
China’s agricultural facilities are developing rapidly and are mainly operated through household contracting. Due to a lack of suitable variable-rate fertilization devices, manual and blind fertilization still widely exists, resulting in fertilizer waste
Qiuwei Bai   +4 more
doaj   +1 more source

Testing of a dual-mode microwave care regimen for hydrogel lenses [PDF]

open access: yes, 2004
Purpose. To test the design of a patient care regimen for soft lenses that aims to provide the highest standards of disinfecting through use of domestic microwave cookers, while also providing storage equipment and solution that enable patients to follow
Crabbe, A, Thompson, P
core   +1 more source

Design and simulation of submarine dual-mode SOFC-MGT hybrid power generation system

open access: yesZhongguo Jianchuan Yanjiu, 2019
[Objectives] Solid Oxide Fuel Cell-Micro Gas Turbine(SOFC-MGT) hybrid power generation system will help to improve the endurance and stealth of conventionally powered submarines.
ZHU Runkai   +4 more
doaj   +1 more source

Ultracompact vanadium dioxide dual-mode plasmonic waveguide electroabsorption modulator

open access: yesNanophotonics, 2013
Subwavelength modulators play an indispensable role in integrated photonic-electronic circuits. Due to weak light-matter interactions, it is always a challenge to develop a modulator with a nanometer scale footprint, low switching energy, low insertion ...
Ooi Kelvin J.A.   +3 more
doaj   +1 more source

Dual-mode mechanical resonance of individual ZnO nanobelts [PDF]

open access: yes, 2003
©2003 American Institute of Physics. The electronic version of this article is the complete one and can be found online at: http://link.aip.org/link/?APPLAB/82/4806/1DOI:10.1063/1.1587878The mechanical resonance of a single ZnO nanobelt, induced by an ...
Bai, X. D.   +3 more
core   +1 more source

A Systematic Review of Evidence on the Clinical Effectiveness of Surveillance Imaging in Children With Medulloblastoma and Ependymoma

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Surveillance imaging aims to detect tumour relapse before symptoms develop, but it's unclear whether earlier detection of relapse leads to better outcomes in children and young people (CYP) with medulloblastoma and ependymoma. This systematic review aims to identify relevant literature to determine the efficacy of surveillance magnetic ...
Lucy Shepherd   +3 more
wiley   +1 more source

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