Results 41 to 50 of about 143,179 (310)
An Ultra-Low Bending Loss Negative Curvature Hollow Core Fiber With a Polygon Jacketing Layer
IEEE Photonics Journal, 2023 We design and simulate a new type of hollow-core antiresonant fiber with the polygon jacketing layer. Through numerical calculations, the confinement loss is approximately 0.003 dB/km at 1.45 μm and the bandwidth is ∼ 410 nm @
Yun-Hao Xu +6 more
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Mathematical and Computational ApplicationsThis work introduces a 2D model that calculates power losses in coaxial magnetic gears (CMGs). The eddy current losses of the magnets are computed analytically, whereas the core losses of the ferromagnetic segments are computed using an analytical–finite
Nikolina Nikolarea +5 more
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Non‐linear model of the switched reluctance motor with included core losses’ effects
IET Electric Power Applications, 2021 To accurately predict motor performance, considering the effects of core losses is of great importance, especially at speeds much higher than the base where the core losses represent a considerable portion of the total drive losses.
Dragan S. Mihic +2 more
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, 2021 At the frequencies used in switching dc-dc converters, the skin and proximity effects have a significant effect on both the losses and leakage inductance of the transformers used in these circuits.
Whitman, Daniel J.
core
An Iterative Error Correction Procedure for Single Sheet Testers Using FEM 3D Model
SensorsDetermination of single-valued BH curve and power loss curve of electric steels is an important parameter in the design of electrical machines and transformers.
Robert Krobot, Martin Dadić
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Renewable Energy and Sustainable Development, 2015 The Y-source topology has a unique advantage of having high voltages gain with small shoot through duty cycles. Furthermore, having the advantage of high modulation index which increase the power density and improve the performance of the converter.
Brwene Salah Gadalla +3 more
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Large Mode Area Single Mode Fiber with a Twisted Polygon-Shaped Core
Photonics, 2022 We present numerical studies on twisted polygon-shaped core fibers for achieving single mode operation with a large mode area propagation in this paper. These large mode area fibers can achieve single mode operation due to twisting-induced high losses to
Kexiong Sun +4 more
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Optimising the performances of hollow antiresonant fibres [PDF]
, 2011 We study the loss of novel antiresonant hollow-core fibres, demonstrate the existence of a wavelength independent optimum distance between core-surround and solid outer cladding, and provide useful guidelines for the fabrication of practical low-loss ...
D. J. Richardson +5 more
core +1 more source
Transactions on Environment and Electrical Engineering, 2017 Boost converters are needed in many applications which require the output voltage to be higher than the input voltage. Recently, boost type converters have been applied for industrial applications, and hence it has become an interesting topic of research.
Brwene Salah Gadalla +3 more
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Solid Rotor Core vs. Lamination Rotor Core in Fractional-Slot PMSM Motor with High Power Density
Energies, 2022 Fractional-slot PMSM motors allow for obtaining high values of power density factors, but at the same time, they are characterized by high values of rotor losses—in the rotor core and permanent magnets.
Tomasz Wolnik, Tomasz Jarek
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