Results 1 to 10 of about 78,456 (142)

Sidelobe Level Reduction in the ACF of NLFM Signals Using the Smoothing Spline Method

open access: yesIEEE Access
The high level of sidelobes in the autocorrelation function of the nonlinear frequency modulation signal is a challenge. One of the conventional methods to reduce the sidelobe levels is to use the principle of stationary phase.
Roohollah Ghavamirad   +2 more
doaj   +2 more sources

Influence of PPD and Mass Scaling Parameter on the Goodness of Fit of Dry Ice Compaction Curve Obtained in Numerical Simulations Utilizing Smoothed Particle Method (SPH) for Improving the Energy Efficiency of Dry Ice Compaction Process

open access: yesEnergies, 2023
The urgent need to reduce industrial electricity consumption due to diminishing fossil fuels and environmental concerns drives the pursuit of energy-efficient production processes. This study addresses this challenge by investigating the Smoothed Particle Method (SPH) for simulating dry ice compaction, an intricate process poorly addressed by ...
Jan Górecki   +3 more
openaire   +2 more sources

Global toolpath smoothing for CNC machining based on B-spline approximation with tool tip position adjustment

open access: yesThe International Journal of Advanced Manufacturing Technology, 2023
B-spline curve approximation is widely used for fitting linear toolpaths to improve machining quality and efficiency in CNC machining. For a high-quality smoothing method, the control of both approximation error and curve curvature needs to be taken into
Li Hua   +4 more
semanticscholar   +1 more source

Investigating bias in the application of curve fitting programs to atmospheric time series [PDF]

open access: yes, 2014
The decomposition of an atmospheric time series into its constituent parts is an essential tool for identifying and isolating variations of interest from a data set, and is widely used to obtain information about sources, sinks and trends in climatically
Manning, A.C., Pickers, P.A.
core   +3 more sources

Analysis of Scarp Profiles: Evaluation of Errors in Morphologic Dating [PDF]

open access: yes, 1993
Morphologic analysis of scarp degradation can be used quantitatively to determine relative ages of different scarps formed in cohesionless materials, under the same climatic conditions.
Avouac, Jean-Philippe
core   +1 more source

Seeing Galaxies Through Thick & Thin. III. HST Imaging of the Dust in Backlit Spiral Galaxies [PDF]

open access: yes, 2000
We present analysis of WFPC2 imaging of two spiral galaxies partially backlit by E/S0 systems in the pairs AM1316-241 and AM0500-620, and the spiral foreground system in NGC 1275.
Disney M. J.   +4 more
core   +2 more sources

Tip–sample interactions: Extraction of single molecular pair potentials from force curves [PDF]

open access: yes, 1996
This article describes a method for extracting the true tip–sample potential from an experimental force curve in atomic force microscopy. This potential is not the negative integral of the force curve. Rather, the potential is a more complicated function
Baldeschwieler, John D.   +2 more
core   +1 more source

Measuring nonlocal Lagrangian peak bias [PDF]

open access: yes, 2014
We investigate nonlocal Lagrangian bias contributions involving gradients of the linear density field, for which we have predictions from the excursion set peak formalism.
Biagetti, Matteo   +3 more
core   +2 more sources

Hyperextended Cosmological Perturbation Theory: Predicting Non-linear Clustering Amplitudes [PDF]

open access: yes, 1998
We consider the long-standing problem of predicting the hierarchical clustering amplitudes $S_p$ in the strongly non-linear regime of gravitational evolution.
Balian R.   +16 more
core   +2 more sources

Smoothing under Diffeomorphic Constraints with Homeomorphic Splines [PDF]

open access: yes, 2010
In this paper we introduce a new class of diffeomorphic smoothers based on general spline smoothing techniques and on the use of some tools that have been recently developed in the context of image warping to compute smooth diffeomorphisms.
de Boor C.   +3 more
core   +4 more sources

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