Semi-blind sparse channel estimation with constant modulus symbols [PDF]
We propose two methods for the estimation of sparse communication channels. In the first method, we consider the problem of channel estimation based on training symbols, and formulate it as an optimization problem.
Cetin, Mujdat +2 more
core +1 more source
Analysis of nanoindentation of soft materials with an atomic force microscope [PDF]
Nanoindentation is a popular experimental technique for characterization of the mechanical properties of soft and biological materials. With its force resolution of tens of pico-Newtons, the atomic force microscope (AFM) is well-suited for performing ...
Notbohm, Jacob +2 more
core +1 more source
Numerical study of shock formation in the dispersionless Kadomtsev-Petviashvili equation and dispersive regularizations [PDF]
The formation of singularities in solutions to the dispersionless Kadomtsev-Petviashvili (dKP) equation is studied numerically for different classes of initial data.
Klein, Christian, Roidot, Kristelle
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Dispersion of carbon nanotubes in polypropylene via multilayer coextrusion: Influence on the mechanical properties [PDF]
The authors would like to thank PSA for funding this research and providing some of the materials used in this study. We also would like to thank R. Glénat, P. Soria, E. Dandeu, A. Grand- montagne and A.
DELALANDE, S +4 more
core +6 more sources
Least Squares Method and Least Modules Method for Finding Defects in Regular Images
The article describes methods based on method of least squares (LSM) and the method of least modules (LMM) to search for defects in regular images (regular 3D structures images).
Volodymyr Zhydkov +2 more
doaj +1 more source
Piezoelectric-based apparatus for strain tuning [PDF]
We report the design and construction of piezoelectric-based apparatus for applying continuously tuneable compressive and tensile strains to test samples. It can be used across a wide temperature range, including cryogenic temperatures.
Andrew P. Mackenzie +5 more
core +2 more sources
(1) Background: this study deals with design of an automated laboratory facility based on a servo-hydraulic testing machine for estimating parameters of mechanical hysteresis loops by means of the digital image correlation (DIC) method.
Alexey A. Bogdanov +5 more
doaj +1 more source
Analysis of a typical railway turnout sleeper system using grillage beam analogy [PDF]
A simplified grillage beam analogy was performed to investigate the behaviour of railway turnout sleeper system with a low value of elastic modulus on different support moduli.
Aravinthan, Thiru +3 more
core +1 more source
Large Magellanic Cloud Distance from Cepheid Variables using Least Squares Solutions
Distance to the Large Magellanic Cloud (LMC) is determined using the Cepheid variables in the LMC. We combine the individual LMC Cepheid distances obtained from the infrared surface brightness method and a dataset with a large number of LMC Cepheids ...
A. Sandage +5 more
core +1 more source
Structural relaxation in silicate melts and non-Newtonian melt rheology in geologic processes [PDF]
The timescale of structural relaxation in a silicate melt defines the transition from liquid (relaxed) to glassy (unrelaxed) behavior. Structural relaxation in silicate melts can be described by a relaxation time, , consistent with the observation that ...
Dingwell, Donald B., Webb, Sharon L.
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