A didactic electronic set-up for introducing to complex networks of chaotic oscillators

2016 ◽  
Author(s):  
Massimiliano de Magistris ◽  
Soudeh Yaghouti ◽  
Lorenza Corti ◽  
Dario Assante
Keyword(s):  
Complex Networks ◽  
Chaotic Oscillators ◽  
Set Up

SYNCHRONIZATION IN SMALL ASSEMBLIES OF VAN DER POL–DUFFING CHAOTIC OSCILLATORS

1996 ◽  
Vol 06 (09) ◽  
pp. 1761-1766 ◽  
Author(s):  
J. GÜÉMEZ ◽  
M.A. MATÍAS
Keyword(s):  
Preliminary Report ◽  
Chaos Synchronization ◽  
Dynamical Equations ◽  
Van Der Pol ◽  
Chaotic Oscillators ◽  
Present Contribution ◽  
Chaotic Circuits ◽  
Set Up ◽  
Driving Signal

The aim of the present contribution is to present a preliminary report on the design of small arrays of chaotic circuits connected by using a recently introduced method that yields chaos synchronization through the use of one-way connections. This method works by driving the response such that the driving signal enters at a particular place in the dynamical equations of the response, instead of suppressing the evolution of the driving signal in the response. This method allows the set up networks with a much higher number of possible connections, including the possibility of a number of simultaneous ones. Several connections are considered for the case of four van der Pol–Duffing circuits, illustrating several features of the method.

Characteristics of Vapor Based on Complex Networks in China

2021 ◽  
Author(s):  
Ai-Xia Feng ◽  
Qi-Guang Wang ◽  
Shi-Xuan Zhang ◽  
Takeshi Enomoto ◽  
Zhi-Qiang Gong ◽  
...  
Keyword(s):  
Complex Networks ◽  
Information Source ◽  
Pearson Correlation ◽  
Mainland China ◽  
Precipitable Water ◽  
Precipitation Prediction ◽  
Interaction Mode ◽  
The Common ◽  
Set Up ◽  
Effective Use

Abstract The uneven spatial distribution of stations providing precipitable water vapor (PWV) observations in China hinders the effective use of these data in data assimilation, nowcasting, and prediction. . In this study, we propose a complex network framework for exploring the topological structure and the collective behavior of PWV in mainland China. We used the Pearson correlation coefficient and transfer entropy to measure the linear and nonlinear relationships of PWV amongst different stations and to set up undirected and directed complex networks, respectively. Our findings revealed the statistical and geographical distribution of the variables influencing PWV networks and identified the vapor information source and sink stations. Specifically, the findings showed that the statistical and spatial distributions of the undirected and directed complex vapor networks in terms of degree and distance were similar to each other (the common interaction mode for vapor stations and their locations). The betweenness results displayed different features. The largest betweenness ratio for directed networks tended to be larger than that of undirected networks, implying the transfer of directed PWV networks was more efficient than that of undirected networks. The findings of this study are heuristic and will be useful for constructing the best strategy for the application of PWV data in applications such as vapor observational networks design and precipitation prediction.

scholarly journals Synchronization of Irregular Complex Networks with Chaotic Oscillators: Hamiltonian Systems Approach

2014 ◽  
Vol 12 (4) ◽  
pp. 782-791 ◽  
Author(s):  
C. Posadas-Castillo ◽  
E. Garza-González ◽  
D.A. Diaz-Romero ◽  
E. Alcorta-Garcia ◽  
C. Cruz-Hernández
Keyword(s):  
Complex Networks ◽  
Hamiltonian Systems ◽  
Systems Approach ◽  
Chaotic Oscillators

Synchronization and FPGA realization of complex networks with fractional–order Liu chaotic oscillators

2018 ◽  
Vol 332 ◽  
pp. 250-262 ◽  
Author(s):  
Soriano–Sánchez A.G. ◽  
Posadas–Castillo C. ◽  
Platas–Garza M.A. ◽  
Arellano–Delgado A.
Keyword(s):  
Complex Networks ◽  
Fractional Order ◽  
Chaotic Oscillators

scholarly journals TOPOLOGY INDEPENDENT SIRS PROCESS

2017 ◽  
Vol 33 (1-2) ◽  
Author(s):  
Igor Tomovski ◽  
Igor Trpevski ◽  
Ljupčo Kocarev
Keyword(s):  
Analytical Solution ◽  
Complex Networks ◽  
Recent Work ◽  
Special Form ◽  
Stationary Regime ◽  
Contact Dynamics ◽  
Statistical Independence ◽  
Spreading Model ◽  
Type Process ◽  
Set Up

A b s t r a c t: Following our recent work on the topology independent SIS spreading model [25, 26], in this article we analyze a SIRS type of a spreading processes, taking place on complex networks characterized by a special form of contact dynamics, for which we use the term "acquisition exclusivity". We show that, identically as for the SIS type process, for the studied set-up, in circumstances where statistical independence of joint events may be assumed, analytical solution for the probabilities that each node is in a certain status in stationary regime may be found. Furthermore, the obtained results indicate that the SIRS process, under the analyzed circumstances is topology independent.

The Effects of Drying Techniques on Clay-Rich Soil Texture

1974 ◽  
Vol 32 ◽  
pp. 466-467
Author(s):  
T. G. Naymik
Keyword(s):  
Critical Point ◽  
Liquid Nitrogen ◽  
Liquid Nitrogen Temperature ◽  
Drying Methods ◽  
Air Drying ◽  
Freeze Dried ◽  
Critical Point Drying ◽  
Set Up ◽  
The Relationship ◽  
Quartz Grains

Three techniques were incorporated for drying clay-rich specimens: air-drying, freeze-drying and critical point drying. In air-drying, the specimens were set out for several days to dry or were placed in an oven (80°F) for several hours. The freeze-dried specimens were frozen by immersion in liquid nitrogen or in isopentane at near liquid nitrogen temperature and then were immediately placed in the freeze-dry vacuum chamber. The critical point specimens were molded in agar immediately after sampling. When the agar had set up the dehydration series, water-alcohol-amyl acetate-CO2 was carried out. The objectives were to compare the fabric plasmas (clays and precipitates), fabricskeletons (quartz grains) and the relationship between them for each drying technique. The three drying methods are not only applicable to the study of treated soils, but can be incorporated into all SEM clay soil studies.

Evaluation of Freezing Methods by Low Temperature X-Ray Diffraction

1977 ◽  
Vol 35 ◽  
pp. 330-333
Author(s):  
T. Gulik-Krzywicki ◽  
M.J. Costello
Keyword(s):  
Biological Materials ◽  
Molecular Organization ◽  
X Ray Diffraction ◽  
Glass Capillary ◽  
X Ray ◽  
Rate Dependent ◽  
Before And After ◽  
Freeze Etching ◽  
Diffraction Patterns ◽  
Set Up

Freeze-etching electron microscopy is currently one of the best methods for studying molecular organization of biological materials. Its application, however, is still limited by our imprecise knowledge about the perturbations of the original organization which may occur during quenching and fracturing of the samples and during the replication of fractured surfaces. Although it is well known that the preservation of the molecular organization of biological materials is critically dependent on the rate of freezing of the samples, little information is presently available concerning the nature and the extent of freezing-rate dependent perturbations of the original organizations. In order to obtain this information, we have developed a method based on the comparison of x-ray diffraction patterns of samples before and after freezing, prior to fracturing and replication.Our experimental set-up is shown in Fig. 1. The sample to be quenched is placed on its holder which is then mounted on a small metal holder (O) fixed on a glass capillary (p), whose position is controlled by a micromanipulator.

Eels Under Standing Wave Conditions

1982 ◽  
Vol 40 ◽  
pp. 492-495
Author(s):  
O.L. Krivanek ◽  
J. TaftØ
Keyword(s):  
Standing Wave ◽  
Wave Conditions ◽  
Set Up ◽  
A Site ◽  
Complex Crystal

It is well known that a standing electron wavefield can be set up in a crystal such that its intensity peaks at the atomic sites or between the sites or in the case of more complex crystal, at one or another type of a site. The effect is usually referred to as channelling but this term is not entirely appropriate; by analogy with the more established particle channelling, electrons would have to be described as channelling either through the channels or through the channel walls, depending on the diffraction conditions.

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