Results 51 to 60 of about 5,337 (195)
Propagation-invariant beams with quantum pendulum spectra: from Bessel beams to Gaussian beam-beams [PDF]
, 2013 We describe a new class of propagation-invariant light beams with Fourier transform given by an eigenfunction of the quantum mechanical pendulum. These beams, whose spectra (restricted to a circle) are doubly-periodic Mathieu functions in azimuth, depend
Dennis, Mark R, Ring, James D
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Design of Rifling Profile to Increase Lifespan of the Gun Barrel [PDF]
한국정밀공학회지, 2018 The rifling is applied to most of the conventional gun barrels to stabilize the projectile using the spin. The rifling force (torque) acting on the projectile inside the barrel also wears the rifling itself and shortens the gun lifespan.
Seil An
doaj +1 more source
Bicubic splines and biquartic polynomials
Open Computer Science, 2016 The paper proposes a new efficient approach to computation of interpolating spline surfaces. The generalization of an unexpected property, noticed while approximating polynomials of degree four by cubic ones, confirmed that a similar interrelation ...
Mino Lukáš +2 more
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, 2015 Gonchar-Stahl's $\rho^2$-theorem characterizes the rate of convergence of best uniform (Chebyshev) rational approximations (with free poles) for one basic class of analytic functions.
Rakhmanov, E. A.
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Bivariate Hermite subdivision [PDF]
, 1996 A subdivision scheme for constructing smooth surfaces interpolating scattered data in $\mathbb{R}^3$ is proposed. It is also possible to impose derivative constraints in these points.
Damme, Ruud van
core +3 more sources
A CFD-Based Data-Driven Reduced Order Modeling Method for Damaged Ship Motion in Waves
Journal of Marine Science and Engineering, 2023 A simple CFD-based data-driven reduced order modeling method was proposed for the study of damaged ship motion in waves. It consists of low-order modeling of the whole concerned parameter range and high-order modeling for selected key scenarios ...
Zhe Sun +5 more
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International Journal for Numerical Methods in Fluids, EarlyView.The immersed boundary method (IBM) was coupled with the moment representation lattice Boltzmann method (MR‐LBM), reducing bandwidth requirements compared to population‐based LBM formulations. A systematic assessment of IBM parameters was conducted to quantify their effect on computational performance.
Marco A. Ferrari +2 more
wiley +1 more source
Polynomial cubic splines with tension properties [PDF]
, 2010 In this paper we present a new class of spline functions with tension properties. These splines are composed by polynomial cubic pieces and therefore are conformal to the standard, NURBS based CAD/CAM ...
C. Manni +18 more
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International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT Recent advances in the numerical solution of fractional partial differential equations have yielded promising results. In particular, the Shifted Grünwald–Letnikov (SGL) approach allows for a generalization of the traditional finite difference method to the context of fractional differential equations.
Pedro Victor Serra Mascarenhas +1 more
wiley +1 more source
Short Exon Detection via Wavelet Transform Modulus Maxima. [PDF]
PLoS ONE, 2016 The detection of short exons is a challenging open problem in the field of bioinformatics. Due to the fact that the weakness of existing model-independent methods lies in their inability to reliably detect small exons, a model-independent method based on
Xiaolei Zhang +6 more
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