Results 31 to 40 of about 25,629,046 (344)

Design and optimization of photonic crystal fiber based sensor for gas condensate and air pollution monitoring

open access: yesPhotonic Sensors, 2017
In this paper, a hexagonal shape photonic crystal fiber (H-PCF) has been proposed as a gas sensor of which both micro-structured core and cladding are organized by circular air cavities.
Md. Ibadul Islam   +7 more
doaj   +1 more source

Strain Effect Study on Mode Field Diameter and Effective Area of WII Type Single Mode Optical Fiber

open access: yesAdvanced Electromagnetics, 2016
In this article, the effect of strain on mode field diameter (MFD) and effective area (Aeff) in a modern multilayer WII type single mode optical fiber is investigated.
S. Makouei, F. Makouei
doaj   +1 more source

Molecular area effects in Cepaea [PDF]

open access: yesProceedings of the National Academy of Sciences, 1983
Enzyme polymorphisms in the land snail Cepaea nemoralis in the central Pyrenees show concordant geographic patterns of strong differentiation that are not correlated with the distributions of characters of shell color and banding or with the major pattern of variation in climate and vegetation type. Three regions of
H, Ochman, J S, Jones, R K, Selander
openaire   +2 more sources

Design of Few-Mode Fibers for Mode-Division Multiplexing Transmission

open access: yesIEEE Photonics Journal, 2013
We investigate the fiber parameters that meet the design conditions for low bending loss and an effectively few-mode operation on few-mode fibers with a step-index profile and a W-shaped refractive index profile for mode-division multiplexing ...
Motoki Kasahara   +7 more
doaj   +1 more source

Operational mode dependency on effective area for NMIJ pressure balance

open access: yesMeasurement: Sensors, 2021
There had been many discussions about whether the effective area of gas-operated pressure balances depend on the modes of operation such as the absolute and gauge mode.
Momoko Kojima
doaj   +1 more source

Stochastic Single-Dimensional Mutated Particle Swarm Optimization with Dynamic Subspace

open access: yesJisuanji kexue yu tansuo, 2020
The traditional particle swarm optimization algorithm adopts the overall dimension updating strategy, and the particle's fitness value deteriorates frequently because the optimal solution is not reached in a certain dimension or a few dimensions.
DENG Zhicheng, SUN Hui, ZHAO Jia, WANG Hui
doaj   +1 more source

Vehicle Lighting Recognition System Based on Erosion Algorithm and Effective Area Separation in 5G Vehicular Communication Networks

open access: yesIEEE Access, 2019
For the safety of meeting vehicles at night, a design scheme of vehicle lighting recognition system for 5G vehicular communication networks is proposed in this paper.
Zi-Chuan Yi   +7 more
doaj   +1 more source

Iris Localization Algorithm based on Effective Area

open access: yesInternational Journal of Antennas and Propagation, 2021
Iris localization is the most crucial part of the iris processing because its accuracy can directly affect the accuracy of biometric identification in subsequent steps.
Jinfeng Yu, Lei Zhang, Zhi Wang
doaj   +1 more source

The prevalence, characteristics and effectiveness of Aichi Target 11′s “other effective area‐based conservation measures” (OECMs) in Key Biodiversity Areas

open access: yesConservation Letters, 2019
Aichi Target 11 of the CBD Strategic Plan for Biodiversity commits countries to the effective conservation of areas of importance for biodiversity, through protected areas and “other effective area‐based conservation measures” (OECMs).
P. Donald   +16 more
semanticscholar   +1 more source

Simple solvation potential for coarse-grained models of proteins [PDF]

open access: yes, 2006
We formulate a simple solvation potential based on a coarsed-grain representation of amino acids with two spheres modeling the $C_\alpha$ atom and an effective side-chain centroid.
Bhattacharyay, A., Seno, F., Trovato, A.
core   +1 more source

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