Results 1 to 10 of about 293,881 (262)

Study of Coupling Length of Concentrically Curved Waveguides

open access: yesIEEE Photonics Journal, 2012
In this paper, we propose a method based on Helmholtz equation to determine the coupling length of the light propagating in concentrically curved waveguides by the conformal transformation.
Dong-Po Cai   +3 more
doaj   +4 more sources

Flux Coupling and the Objective Functions’ Length in EFMs [PDF]

open access: yesMetabolites, 2020
Structural analysis of constraint-based metabolic network models attempts to find the network’s properties by searching for subsets of suitable modes or Elementary Flux Modes (EFMs).
Francisco Guil   +2 more
doaj   +3 more sources

The Coupling of Stride Length and Foot Strike in Running

open access: yesFrontiers in Sports and Active Living, 2022
Modifying stride length and/or foot strike in running results in mechanical alterations associated with injury risk. Stride length and foot strike have often been treated as independent factors that affect running mechanics, but there is evidence to ...
Missy Thompson   +5 more
doaj   +3 more sources

Optimization of Train Operation Planning with Full-Length and Short-Turn Routes of Virtual Coupling Trains

open access: yesApplied Sciences, 2022
Virtual coupling uses wireless communication instead of mechanical coupling to ensure that trains are easily reconnected or disconnected. This technology can shorten the interval time between trains, give full play to the carrying capacity of lines, and ...
Xu Zhou, Fang Lu, Liyu Wang
doaj   +3 more sources

Quantification of Phase-Amplitude Coupling in Neuronal Oscillations: Comparison of Phase-Locking Value, Mean Vector Length, Modulation Index, and Generalized-Linear-Modeling-Cross-Frequency-Coupling

open access: yesFrontiers in Neuroscience, 2019
Phase-amplitude coupling is a promising construct to study cognitive processes in electroencephalography (EEG) and magnetencephalography (MEG). Due to the novelty of the concept, various measures are used in the literature to calculate phase-amplitude ...
Mareike J. Hülsemann   +2 more
doaj   +3 more sources

The Effect of Coupling Memory and Block Length on Spatially Coupled Serially Concatenated Codes [PDF]

open access: yes2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring), 2021
Spatially coupled serially concatenated codes (SC-SCCs) are a class of spatially coupled turbo-like codes, which have a close-to-capacity performance and low error floor. In this paper we investigate the impact of coupling memory, block length, decoding window size, and number of iterations on the performance, complexity, and latency of SC-SCCs ...
Mojtaba Mahdavi 0001   +5 more
openaire   +6 more sources

Characteristics and mechanism of coupling effects in parallel-cladded acoustic waveguides

open access: yesActa Acustica, 2022
The characteristics and mechanism of coupling effects between parallel cladded acoustic waveguides (PCAWs) are essential when considering their applications in acoustic wave control and signal processing.
Yin Guanjun   +6 more
doaj   +1 more source

Calculation of the Coupling Coefficient in Step-Index Multimode Polymer Optical Fibers Based on the Far-Field Measurements

open access: yesFrontiers in Physics, 2022
Using the power flow equation (PFE), this article investigates mode coupling in step-index (SI) multimode (MM) polymer optical fiber (POF). This equation’s coupling coefficient was initially fine-tuned so that it could appropriately reconstruct ...
Svetislav Savović   +5 more
doaj   +1 more source

Mode Coupling Analysis for a Mode Selective Coupler Using the Supermode Theory

open access: yesPhotonics, 2022
In this paper, the mode selective coupler (MSC) is analyzed using the supermode theory. It is shown that all characteristic parameters of the MSC can be obtained using the propagation constants of the supermodes supported by the MSC structure. Simulation
Wenhua Ren, Fan Wang, Guobin Ren
doaj   +1 more source

Two-wavelength WDM multiplexers based on combined fiber structures

open access: yesРоссийский технологический журнал, 2021
One of the main directions in the development of optical communication systems is associated with the use of optical fiber (ОF) for data reception and transmission.
D. A. Ivanov, V. I. Nefedov
doaj   +1 more source

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