Results 51 to 60 of about 2,202,366 (201)

Damage Identification in Moment Frames Using Mode Shape Parameters and IMRFO Algorithm [PDF]

open access: yesپژوهش‌های زیرساخت‌های عمرانی
This study presents a novel finite element model updating approach for accurate damage identification in moment-resisting frames. The proposed objective function, which integrates mode shape parameters with natural frequencies, demonstrates high ...
Soheil Sabzevari   +2 more
doaj   +1 more source

Newark map 1915

open access: yes, 1915
Map encompasses Newark, Harrison, Kearney, Irvington and East Newark. Ward numbers and boundries are shown in red.

core   +1 more source

Image encryption scheme based on compressed sensing and fractional quantum logistic-tent map

open access: yesCybersecurity
In this paper, we construct a quantum logistic-tent map and extend it to the fractional order. Using bifurcation portrait, Lyapunov exponent spectrum, and spectral entropy, its nonlinear characteristics are investigated.
Birong Xu   +3 more
doaj   +1 more source

A Novel Chaotic Map and an Improved Chaos-Based Image Encryption Scheme

open access: yesThe Scientific World Journal, 2014
In this paper, we present a novel approach to create the new chaotic map and propose an improved image encryption scheme based on it. Compared with traditional classic one-dimensional chaotic maps like Logistic Map and Tent Map, this newly created ...
Xianhan Zhang, Yang Cao
doaj   +1 more source

On the dynamics of skew tent maps

open access: yes, 2017
In this paper we give an elementary treatment of the dynamics of skew tent maps. We divide the two-parameter space into six regions. Two of these regions are further subdivided into infinitely many regions. All of the regions are given explicitly. We find the attractor in each subregion, determine whether the attractor is a periodic orbit or is chaotic,
Cheng, Kaijen, Palmer, Kenneth
openaire   +2 more sources

A Comparison of Chaotic Electromagnetic Field Optimization Algorithms [PDF]

open access: yesInternational Journal Bioautomation
This paper investigates the performance of various Electromagnetic Field Optimization (EFO) algorithms. Chaos maps are proposed to improve the performance of EFO algorithms.
Olympia Roeva, Dafina Zoteva
doaj   +1 more source

Closure measures for coarse-graining of the tent map

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2014
We quantify the relationship between the dynamics of a time-discrete dynamical system, the tent map T and its iterations Tm, and the induced dynamics at a symbolical level in information theoretical terms. The symbol dynamics, given by a binary string s of length m, is obtained by choosing a partition point α∈[0,1] and lumping together the points x∈[0 ...
Oliver Pfante   +4 more
openaire   +2 more sources

Parameter Estimation of a Class One-Dimensional Discrete Chaotic System

open access: yesDiscrete Dynamics in Nature and Society, 2011
It is of vital importance to exactly estimate the unknown parameters of chaotic systems in chaos control and synchronization. In this paper, we present a method for estimating one-dimensional discrete chaotic system based on mean value method (MVM).
Lidong Liu   +5 more
doaj   +1 more source

PERFORMANCE IMPROVEMENT OF IDMA SCHEME USING CHAOTIC MAP INTERLEAVERS FOR FUTURE RADIO COMMUNICATION

open access: yesICTACT Journal on Communication Technology, 2017
In this paper, chaos based interleavers are proposed for the performance improvement of Interleave Division Multiple Access (IDMA henceforth) for future radio communication (FRC) requirements.
Aasheesh Shukla, Vinay Kumar Deolia
doaj   +1 more source

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