Characterization of dendrites as nonlinear computation devices

2004 ◽  
Vol 58-60 ◽  
pp. 581-586 ◽  
Author(s):  
Luis M. Sarro
Keyword(s):  
Nonlinear Computation

scholarly journals The Use of Hebbian Cell Assemblies for Nonlinear Computation

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Christian Tetzlaff ◽  
Sakyasingha Dasgupta ◽  
Tomas Kulvicius ◽  
Florentin Wörgötter
Keyword(s):  
Cell Assemblies ◽  
Nonlinear Computation ◽  
Hebbian Cell Assemblies

Nonlinear computation and dynamic cognitive generalities

1997 ◽  
Vol 20 (4) ◽  
pp. 688-689
Author(s):  
Robert A. M. Gregson
Keyword(s):  
Nonlinear Dynamics ◽  
Nonlinear Computation

Although one can endorse the complexity of the data and processes that Phillips & Singer (P&S) review, their mathematical suggestions can be compared critically with cases in nonlinear psychophysics, where the theoretician is faced with analogous problems. Owing to P&S's failure adequately to recognise both the intricate properties of nonlinear dynamics in networks and the constraints of metabolic demands on the temporal generation of patterns in biological nets their conclusions fail to meet the problems they properly address.

Nonlinear computation

1997 ◽  
Vol 334 (5-6) ◽  
pp. 1015-1047 ◽  
Author(s):  
Rüdiger Seydel
Keyword(s):  
Nonlinear Computation

scholarly journals Impact of Correlated Neural Activity on Decision-Making Performance

2013 ◽  
Vol 25 (2) ◽  
pp. 289-327 ◽  
Author(s):  
Nicholas Cain ◽  
Eric Shea-Brown
Keyword(s):  
Decision Making ◽  
Neural Activity ◽  
Higher Order ◽  
Firing Rates ◽  
Pairwise Correlations ◽  
Neural Populations ◽  
Cell Groups ◽  
Nonlinear Computation ◽  
Standard Integration ◽  
Simultaneous Activity

Stimulus from the environment that guides behavior and informs decisions is encoded in the firing rates of neural populations. Neurons in the populations, however, do not spike independently: spike events are correlated from cell to cell. To what degree does this apparent redundancy have an impact on the accuracy with which decisions can be made and the computations required to optimally decide? We explore these questions for two illustrative models of correlation among cells. Each model is statistically identical at the level of pairwise correlations but differs in higher-order statistics that describe the simultaneous activity of larger cell groups. We find that the presence of correlations can diminish the performance attained by an ideal decision maker to either a small or large extent, depending on the nature of the higher-order correlations. Moreover, although this optimal performance can in some cases be obtained using the standard integration-to-bound operation, in others it requires a nonlinear computation on incoming spikes. Overall, we conclude that a given level of pairwise correlations, even when restricted to identical neural populations, may not always indicate redundancies that diminish decision-making performance.

scholarly journals NUMERICAL SIMULATION OF RIVETING PROCESS USING BLIND RIVET

Aviation ◽  
2006 ◽  
Vol 10 (2) ◽  
pp. 7-12
Author(s):  
Lucjan Witek
Keyword(s):  
Stress Distribution ◽  
Strain Distribution ◽  
Initial Stresses ◽  
Aviation Industry ◽  
The Finite Element Method ◽  
The Core ◽  
Riveting Process ◽  
Nonlinear Computation ◽  
Core Displacement ◽  
Mechanical Phenomena

This paper is concerned with an analysis of the mechanical phenomena occurring in the process of blind riveting. Blind rivets are commonly used in the aviation industry and allow riveting with one‐sided access. To solve this problem, the finite element method was used. In results of the nonlinear computation performed for a joint containing one rivet, the stress distribution in the separate phases of riveting were analyzed. The plots of riveting force in function of rivet core displacement for different friction coefficients between the rivet and the core and the plastic strain distribution also were obtained. The main purpose of this work was to obtain the initial stress distribution occurring in the rivet and sheets after the mandrel was broken. This analysis showed that after finishing the riveting process the initial stresses occurring in the rivet have high values.

On the Capacity of Private Nonlinear Computation for Replicated Databases

2019 ◽  
Author(s):  
Sarah A. Obead ◽  
Hsuan-Yin Lin ◽  
Eirik Rosnes ◽  
Jorg Kliewer
Keyword(s):  
Replicated Databases ◽  
Nonlinear Computation

Special Phenomena of Nonlinear Systems in Structural Dynamics

2008 ◽  
Vol 36 (4) ◽  
pp. 331-338
Author(s):  
Dirk Ostermann
Keyword(s):  
Finite Element ◽  
Nonlinear Systems ◽  
Structural Dynamics ◽  
Structural Design ◽  
Great Effort ◽  
Nonlinear Analyses ◽  
The Past ◽  
Spring System ◽  
Mass Spring ◽  
Nonlinear Computation

In modern structural design, more and more nonlinear computation methods are used. In the past, it was possible to consider nonlinearities using analytical solutions only with great effort and only for very few cases. Today, with powerful computers and modern finite element codes, these nonlinear analyses are no longer a problem. For the assessment of the results of such a computation, however, the software user must have a certain mechanical background, in order to understand the behavior of the structure being examined. Especially in structural dynamics, some special phenomena arise with nonlinear systems that are not predicted from linear theory. Some of these phenomena are presented here in relation to a simple example, Duffing's oscillator (a mass–spring system).

Design and Application of Concrete Faced Rock-Fill Dam Numerical Simulation Analysis Program

2012 ◽  
Vol 594-597 ◽  
pp. 1882-1887
Author(s):  
Hong Ru Li ◽  
Fei Feng ◽  
Qing Wang
Keyword(s):  
Simulation Analysis ◽  
Three Dimensional ◽  
Ansys Software ◽  
Rock Fill ◽  
Construction Procedure ◽  
Operation Period ◽  
Fortran Language ◽  
Constitutive Mode ◽  
Nonlinear Computation ◽  
Concrete Face

Reviewed the various constitutive mode of concrete faced rock-fill dam. Basis on the complex physical characteristic of filled the material and the framework of dam, a method of computer is given, introduced into the program of the concrete face rock-fill dam calculation with FORTRAN language on the ANSYS software. It is used to simulate two and three-dimensional nonlinear computation and compute figure simulation in the construction procedure and operation period for the concrete face rock fill dam, the result was intuitionist clarity.

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