Results 31 to 40 of about 5,162,641 (303)
The geometry and combinatorics of discrete line segment hypergraphs [PDF]
Discrete Mathematics, 2020 An $r$-segment hypergraph $H$ is a hypergraph whose edges consist of $r$ consecutive integer points on line segments in $\mathbb{R}^2$. In this paper, we bound the chromatic number $χ(H)$ and covering number $τ(H)$ of hypergraphs in this family, uncovering several interesting geometric properties in the process.
Déborah Oliveros +2 more
openaire +4 more sources
Discrete Element Method, a Tool to Investigate Complex Material Behaviour in Material Forming [PDF]
, 2010 Discrete Model is based on the description of the physical state (velocity, position, temperature, magnetic moment, electric potential ..) of a large number of discrete elements that form the media to be studied.
M. G. Lee +11 more
core +1 more source
DFT-Based Frequency Estimation of Multiple Sinusoids
IEEE Access, 2022 An accurate frequency estimation method of multi-component sinusoidal signal in additive white Gaussian noise (AWGN) is proposed. The algorithm is implemented in the frequency domain and based on discrete Fourier transform (DFT). The maximum DFT spectral
Nian Liu +5 more
doaj +1 more source
Discrete Hammersley’s lines with sources and sinksm
Latin American Journal of Probability and Mathematical Statistics, 2016 We introduce two stationary versions of two discrete variants of Hammersley's process in a finite box, this allows us to recover in a unified and simple way the laws of large numbers proved by T. Sepp{ä}l{ä}inen for two generalized Ulam's problems. As a by-product we obtain an elementary solution for the original Ulam problem.
Basdevant, A-L +3 more
openaire +3 more sources
Sensors, 2020 Beam pattern measurement is essential to verifying the performance of an array sonar. However, common problems in beam pattern measurement of arrays include constraints on achieving the far-field condition and reaching plane waves mainly due to limited ...
Donghwan Jung, Jeasoo Kim
doaj +1 more source
PLoS ONE, 2017 Following a predicted decline in water resources in the Mediterranean Basin, we used reaction-diffusion equations to gain a better understanding of expected changes in properties of vegetation patterns that evolve along the rainfall transition between ...
Elena Roitberg, Maxim Shoshany
doaj +1 more source
A discrete control algorithm synthesis for the live-steam-line heating system [PDF]
MATEC Web of Conferences, 2020 An original mathematic model of a main live-steam-line heating system for the 6 MW turbine is reviewed. The present model is composed from a system of ODE with divergences and constant coefficients, along with an object structure is shown, numerical ...
Akimenko Dmitriy +4 more
doaj +1 more source
On parametric amplification in discrete Josephson transmission line
Physica C: Superconductivity and its Applications, 2023 We consider the discrete series-connected lossy Josephson transmission line, constructed from Josephson junctions, capacitors and resistors (one-dimensional array of Josephson junctions). We derive equations describing pump, signal, and idler interaction in the system and calculate the thresholds for the parametric amplification.
openaire +2 more sources
The Use of Language Projection for Compositional Verification of Discrete Event Systems [PDF]
, 2008 This paper proposes the use of abstraction by language projection to improve the performance of compositional verification to prove or disprove that a large system of composed finite-state machines satisfies a given safety property.
Simon Ware +3 more
core +1 more source
Frontal EEG Asymmetry and Middle Line Power Difference in Discrete Emotions
Frontiers in Behavioral Neuroscience, 2018 A traditional model of emotion cannot explain the differences in brain activities between two discrete emotions that are similar in the valence-arousal coordinate space.
Guozhen Zhao +5 more
doaj +1 more source