Comparative Study of Coaxial Main Rotor Aerodynamics at Forward Flight Based on Free Wake Model and Unsteady Reynolds- Averaged Navier–Stokes Method [PDF]
This paper is dedicated to the numerical modeling of the aerodynamic characteristics of the full-scale coaxial main rotor. The modes of forward flight in the range of values V = 30−60 m∙s–1 (108−216 km∙h–1) have been under consideration.
Sergey Gennadievich Konstantinov +4 more
doaj +2 more sources
The UK government has been calling for action in tackling food waste (FW) generation, to which the Hospitality and Food Services (HaFS) sector contributes substantially.
Spyridoula Gerassimidou +2 more
doaj +1 more source
Polarization-independent wavelength conversion at 2.5 Gb/s by dual-pump four-wave mixing in a strained semiconductor optical amplifier [PDF]
We give a general expression for the polarization dependence of the four-wave mixing (FWM) efficiency in the dual-pump configuration. This expression, along with some general properties of the FWM susceptibility tensor, is used to propose a simple scheme
Geraghty, David F. +4 more
core +1 more source
A scheme for the coherent control of perfect optical vortex (POV) in an asymmetric semiconductor double quantum well (SDQW) nanostructure is proposed by exploiting the tunneling-induced highly efficient four-wave mixing (FWM).
Xu Deng, Tao Shui, Wen-Xing Yang
doaj +1 more source
Wavelength conversion at 10 Gb/s by four-wave mixing over a 30-nm interval [PDF]
We show that the use of a long semiconductor optical amplifier increases the error-free conversion interval of a four-wave mixing (FWM)-based wavelength converter.
D'Ottavi, A. +6 more
core +1 more source
Sensitivity Enhancement for Fiber Bragg Grating Sensors by Four Wave Mixing
All-optical signal processing based on four wave mixing (FWM) in a highly nonlinear fiber (HNLF) to enhance the sensitivity of a fiber sensor is demonstrated and comprehensively reviewed in this paper.
Jiangbing Du +4 more
doaj +1 more source
FWM Mitigation in DWDM Optical Networks
Abstract In this paper, three optical communication systems have been proposed to mitigate Four Wave Mixing (FWM). Three techniques are used, namely; low input power with high gain amplifier, a collective Optical Time Division Multiplexing (OTDM) and Dense Wavelength Division Multiplexing (DWDM) system, and the use of alternative ...
Habib Ullah Manzoor +3 more
openaire +1 more source
Impact of nonlocal response in plasmonic metasurfaces on four-wave mixing
We report the impact of nonlocal response in metallic nanostructures on four-wave mixing (FWM) process in nonlinear plasmonic metasurfaces which consist of Au nanostrips coupled with Au film spaced by an ultrathin dielectric film.
Zhongshuai Zhang +3 more
doaj +1 more source
Performance Analysis of the Four-Wave Mixing Effect with Various Tapered Fiber Waist Diameters
In this work, we report the use of different waist diameters of tapered fiber to generate a four-wave mixing (FWM) effect. The FWM conversion efficiencies obtained from the tapered fiber with 10 µm, 20 µm, and 30 µm waist diameters were −37.81 dB, −38.50
Harith Ahmad +5 more
doaj +1 more source
Potentials and limitations of Integra® flowable wound matrix seeded with adipose tissue-derived microvascular fragments [PDF]
Adipose tissue-derived microvascular fragments (ad-MVF) represent promising vascularisation units for bioengineered Integra® matrix wound dressing (MWD).
T Später +3 more
doaj +1 more source

