搜索结果: 1-15 共查到“工学 Periodic”相关记录45条 . 查询时间(0.171 秒)
2017“Recent Approaches to Periodic Structures”专题会议(Special Session Recent Approaches to Periodic Structures)
2017 Recent Approaches to Periodic Structures 专题会议
2017/2/16
Periodic structures have been widely used as wavelength and polarization selective components in microwave, millimeter-wave, and optical wave regions, because combination of ordered objects and their ...
Evolutionary dynamics of a system with periodic coefficients
Replicator equation Parametric excitation Evolutionary dynamics
2015/8/27
We investigate a problem in evolutionary game theory based on replicator equations with periodic coefficients. This approach toevolution combines classical game theory withdiffer-ential equations. The...
Robust design of slow-light tapers in periodic waveguides
robust optimization PDE-constrained optimization shape optimization coupling taper periodic waveguide slow-light photonics
2015/8/10
This paper concerns the design of tapers for coupling power between uniform and slow-light periodic waveguides. New optimization methods are described for designing robust tapers, which not only perfo...
Periodic Photogrammetric Monitoring and Surface reconstruction of A Historical Wood Panel Painting for restoration Purposes
Monitoring Archiving Recording
2015/7/14
The Westminster Retable is a work of art occupying a central position in late thirteenth century painting in Europe. It is 3.4m long,
1m high and about 0.1m thick and consists of an oak support which...
Application of the Time Spectral Method to Periodic Unsteady Vortex Shedding
Time Spectral Method Periodic Unsteady Vortex Shedding
2015/7/2
The Time Spectral method has been proposed for the fast and efficient computation of periodic unsteady flows. The algorithm has been validated with both 2D and 3D test cases and applied suc...
Time Spectral Method for Periodic Unsteady Computations over Two- and Three- Dimensional Bodies
Time Spectral Method Periodic Unsteady Computations Dimensional Bodies
2015/7/2
The Time Spectral Algorithm is proposed for the fast and efficient computation of time periodic turbulent Navier-Stokes calculations past two- and three-dimensional bodies.
Acceleration of Convergence to a Periodic Steady State in Turbomachinery Flows
Acceleration Convergence Periodic Steady State Turbomachinery Flows
2015/7/2
This paper presents a technique used to accelerate the convergence of unsteady cal culations of time-periodic flows to a periodic steady state. The basis of the procedure is the use of the discr...
Assessing the accuracy of the isotropic periodic sum method through Madelung energy computation
isotropic periodic sum method Madelung energy computation
2015/1/7
We tested the isotropic periodic sum (IPS) method for computing Madelung energies of ionic crystals. The performance of the method, both in its nonpolar (IPSn) and polar (IPSp) forms, was compared wit...
Optimization of non-periodic plasmonic light-trapping layers for thin-film solar cells
non-periodic plasmonic light-trapping layers
2015/8/7
Non-periodic arrangements of nanoscale light scatterers allow for the realization of extremely effective broadband light-trapping layers for solar cells. However, their optimization is challenging giv...
Studies of Optical Properties of Symmetrical Quasi-Periodic Photonic Crystals
Symmetrical Quasi-Periodic Photonic Crystals Hybrid Photonic Crystals Photonic Band Gap
2013/1/30
Using the transfer matrix method approach (TMM), the present paper attempts to determine the optical properties of quasi-periodic symmetric one-dimensional photonic systems. In addition, it studies hy...
High-Effi ciency Amorphous Silicon Solar Cell on a Periodic Nanocone Back Refl ector
Amorphous Silicon Solar Cell Periodic Nanocone
2015/8/7
hin-fi lm silicon solar cells, including hydrogenated amorphous silicon (a-Si:H) single-junction and amorphous/microcrystal line silicon (a-Si:H/ μ c-Si:H) tandem-junction solar cells, are promi...
S4:A free electromagnetic solver for layered periodic structures
Computational electromagnetics Maxwell solver Fourier modal method
2015/8/7
We describe S4, a free implementation of the Fourier modal method (FMM), which has also been commonly referred to as rigorous coupled wave analysis (RCWA), for simulating electromagnetic propagation t...
We track the secondary bifurcations of coherent states in plane Couette flow and show that they undergo an incomplete periodic doubling cascade that ends with a crisis bifurcation. We introduce a symb...
Experimental Demonstration of XPM Compensation for CO-OFDM Systems with Periodic Dispersion Maps
Fiber optics communications Modulation Nonlinear Optics fibers.
2015/5/26
We experimentally demonstrate compensation of XPM for CO-OFDM systems operating in a periodic dispersion map using a low-bandwidth compensator. The nonlinear threshold was increased by 4 dB in a 22.5 ...
Periodic oscillation and fine structure of wedge-induced oblique detonation waves
Oblique detonation wave Wedge Periodic oscillation·Fine structure
2012/2/28
An oblique detonation wave for a Mach 7 inlet flow over a long enough wedge of 30 turning angle is simulated numerically using Euler equation and one-step rection model. The fifth-order WENO scheme is...