Results 11 to 20 of about 9,240 (223)

Bandwidth comparison of rectangular and offset cross‐slot frequency‐selective surface polarisation transformers

open access: yesElectronics Letters, 2021
This letter compares the 3 dB axial ratio (AR) bandwidth (BW) of transmission mode single‐screen linear‐to‐circular polarisation convertors based on three different slot topologies.
Sarah Clendinning   +3 more
doaj   +1 more source

Design Low Crosstalk Ring-Slot Array Structure for Label-Free Multiplexed Sensing

open access: yesSensors, 2014
We theoretically demonstrate a low crosstalk ring-slot array structure used for label-free multiplexed sensing. The proposed sensors array is based on an array of three ring-slot and input/output line defect coupling waveguides. Each ring-slot cavity has
Lijun Huang   +3 more
doaj   +1 more source

Design of Storage Allocation Using Interaction Frequency Heuristic-Order Oriented Slotting Approach to Reduce Delay Time on Traveling Searching Activities in Refinery Unit V Warehouse PT XYZ

open access: yesJurnal Rekayasa Sistem Industri, 2018
<p><strong> </strong>Refinery Unit (RU) V is a processing company owned by PT XYZ located in Balikpapan. Refinery Unit V has twelve warehouses with four warehouses being the main focus in this research of RGM, RMS, RIN, and RSP used to store products for refinery maintenance processes.
Ardi Kelana Putra   +2 more
openaire   +3 more sources

A Wideband Transmitarray Antenna Design Based on the Transmission Characteristic of the UnitCell [PDF]

open access: yesAUT Journal of Electrical Engineering, 2023
In this paper, a procedure is proposed to design a wideband transmitarray upon a specified frequency band. In this way, the phase control parameter of a unit cell is adjusted in a suggested range, ensuring linear phase change and low transmission loss ...
Mohammadreza Salimi Beni   +1 more
doaj   +1 more source

Tunable Liquid Crystal Based Phase Shifter with a Slot Unit Cell for Reconfigurable Reflectarrays in F-Band

open access: yesApplied Sciences, 2018
An electrically tuned phase shifter based on the single slot unit cell and liquid crystal for a reconfigurable reflectarray antenna was presented. The simulation and measured results obtained at the F-band were used to demonstrate that the dielectric ...
Sheng Gao   +7 more
doaj   +1 more source

Multi-word units (and tokenization more generally): a multi-dimensional and largely information-theoretic approach

open access: yesLexis: Journal in English Lexicology, 2022
It has been argued that most of corpus linguistics involves one of four fundamental methods: frequency lists, dispersion, collocation, and concordancing. All these presuppose (if only implicitly) the definition of a unit: the element whose frequency in a
Stefan Th. Gries
doaj   +1 more source

Transmitting-absorbing material based on resistive metasurface

open access: yesAIP Advances, 2018
We theoretically and experimentally studied a transmitting-absorbing material that had transmission window within the absorption band. The material had a sandwich structure comprised of a resistive metasurface, a dielectric substrate and a metallic slot ...
Fan-Guang Meng   +6 more
doaj   +1 more source

In-Band Radar Cross Section Reduction of Slot Array Antenna

open access: yesIEEE Access, 2018
A slot array antenna is proposed for both in-band and out-of-band radar cross section (RCS) reduction. The presented slot array antenna is covered by the superstrate consisting of a polarization rotation reflective surface (PRRS).
Yongtao Jia   +4 more
doaj   +1 more source

Analytical Model of a Single Link of Elastic Optical Networks

open access: yesIEEE Access, 2022
This article discusses and evaluates a model of resources to which multiservice traffic is offered. The initial assumption for the model is that calls of particular traffic classes are always serviced in neighboring allocation units of the resources ...
Mariusz Glabowski   +2 more
doaj   +1 more source

A Multi-Service Model of Resources With the Neighboring Choice of Allocation Units

open access: yesIEEE Access, 2021
This article discusses a discretized model of resources to which a mixture of multi-service traffic streams is offered. In the model the connections of individual traffic classes that require a large number of allocation units are always executed using ...
Mariusz G. Abowski   +2 more
doaj   +1 more source

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