Results 61 to 70 of about 43,273 (183)

Improving Fourier Partial Sum Approximation for Discontinuous Functions Using a Weight Function

Abstract and Applied Analysis, 2017
We introduce a generalized sigmoidal transformation wm(r;x) on a given interval [a,b] with a threshold at x=r∈(a,b). Using wm(r;x), we develop a weighted averaging method in order to improve Fourier partial sum approximation for a function having a jump ...
Beong In Yun
doaj   +1 more source

The relationship between movement speed and duration during soccer matches.

PLoS ONE, 2017
The relationship between the time duration of movement (t(dur)) and related maximum possible power output has been studied and modeled under many conditions.
Kai Roecker, Hubert Mahler, Christian Heyde, Mareike Röll, Albert Gollhofer   +4 more
doaj   +1 more source

Hardware Implementation of a Fully Functional Stochastic p‐STT Neuron for Probabilistic Computing

Advanced Electronic Materials
A stochastic binary neuron is developed for probabilistic computing using a perpendicular spin‐transfer torque (p‐STT) neuron device and its associated peripheral circuits.
Han‐Sol Jun, Dae‐Seong Woo, So‐Hyun Lee, Yohan Choi, Yeonsoo Shin, Tae‐Hun Shim, Jae‐Joon Kim, Jea‐Gun Park   +7 more
doaj   +1 more source

Dynamics of an epidemic model with advection and free boundaries

Mathematical Biosciences and Engineering, 2019
This paper deals with the propagation dynamics of an epidemic model, which is modeled by a partially degenerate reaction-diffusion-advection system with free boundaries and sigmoidal function.
Meng Zhao, Wan-Tong Li , Yang Zhang
doaj   +1 more source

Approximation of functions of finite variation by superpositions of a Sigmoidal function

Applied Mathematics Letters, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
MARINO, Giuseppe, LEWICKI G.
openaire   +4 more sources

Domain wall magnetic tunnel junction-based artificial synapses and neurons for all-spin neuromorphic hardware

Nature Communications
We report a breakthrough in the hardware implementation of energy-efficient all-spin synapse and neuron devices for highly scalable integrated neuromorphic circuits.
Long Liu, Di Wang, Dandan Wang, Yan Sun, Huai Lin, Xiliang Gong, Yifan Zhang, Ruifeng Tang, Zhihong Mai, Zhipeng Hou, Yumeng Yang, Peng Li, Lan Wang, Qing Luo, Ling Li, Guozhong Xing, Ming Liu   +16 more
doaj   +1 more source

A Comparison between Fixed-Basis and Variable-Basis Schemes for Function Approximation and Functional Optimization

Journal of Applied Mathematics, 2012
Fixed-basis and variable-basis approximation schemes are compared for the problems of function approximation and functional optimization (also known as infinite programming).
Giorgio Gnecco
doaj   +1 more source

On a differential system arising in the network control theory

Nonlinear Analysis, 2016
We investigate the three-dimensional dynamical system occurring in the network regulatory systems theory for specific choices of regulatory matrix { { 0, 1, 1 } { 1, 0, 1 } { 1, 1, 0 } } and sigmoidal regulatory function f(z) = 1 / (1 + e-μz), where z = ∑
Eduard Brokan, Felix Sadyrbaev
doaj   +1 more source

Light exercise heart rate on-kinetics: a comparison of data fitted with sigmoidal and exponential functions and the impact of fitness and exercise intensity [PDF]

, 2017
Karl M. Trounson, Spencer Roberts, Aaron Balloch, Stuart A. Warmington   +3 more
openalex   +1 more source

Influence of lime on the Ni transfer into plants

Journal für Kulturpflanzen, 2009
In a two years pot experiment with a sod-podzolic, acid sandy loam, contaminated with nickel (Ni) and treated with increased lime doses, the Ni transfer from soil to plants was studied.
Alexandra Izosimova, Vladimir Drichko, Jutta Rogasik, Ewald Schnug   +3 more
doaj   +1 more source