Collective Behavioral Patterns in a Multichannel Service Facilities System: A Cellular Automata Approach

2011 ◽  
Author(s):  
Carlos A. Delgado ◽  
A. van Ackere ◽  
E. R. Larsen ◽  
K. Sankaranarayanan
Keyword(s):  
Cellular Automata ◽  
Behavioral Patterns ◽  
System A ◽  
Multichannel Service

Substation Remote Viewing Image Mosaic Based on Fuzzy Cellular Automata Detection

2013 ◽  
Vol 846-847 ◽  
pp. 1213-1216
Author(s):  
Hong Tao Zai
Keyword(s):  
Cellular Automata ◽  
Feature Point ◽  
Image Mosaic ◽  
Feature Points ◽  
System A ◽  
Safety And Reliability ◽  
Fuzzy Cellular Automata ◽  
Remote Viewing ◽  
Matched Edge ◽  
Edge Feature

In order to improve the effect of remote video monitoring system, a new image mosaic technology based on fuzzy cellular automata detection is presented. Firstly, the edge feature points from two images are extracted by fuzzy cellular automata; secondly, the corresponding feature point pairs are got by the cross-correlation of the gray scale around the edge feature points; finally the images can be stitched by matched edge feature point pairs. The experiment of remote viewing image mosaic in substation shows that this method can achieve image mosaic effectively and it will be benefit to improve the safety and reliability of substation operation.

One-node closed multichannel service system: several types of customers and service rates, and random pick-up from the waiting line

1987 ◽  
Vol 19 (02) ◽  
pp. 487-504
Author(s):  
O. Bronshtein ◽  
I. Gertsbakh ◽  
B. Pittel ◽  
S. Shahaf
Keyword(s):  
Queueing System ◽  
Normal Approximation ◽  
Local Limit Theorem ◽  
Local Limit ◽  
Mean Values ◽  
System A ◽  
Service Rates ◽  
Multichannel Service ◽  
Waiting Line ◽  
Service Channels

A closed queueing system has Q service channels and a waiting line. There are Ni customers of type i in the system, i = 1, ···, m, ∑ m i=1 Ni = N > Q. Q customers are served and Q 0 = N – Q stay in the waiting line. Q channels are partitioned into n groups with Qj channels in the jth group, j = 1, ···, n. The service time of the ith type customer by a channel of the jth group is τ ij ~ Exp (λ ij ). When a customer leaves the channel, it is immediately replaced by another one picked up randomly from the waiting time. The customer which has cleared service joins the waiting line without delay. Let Xij be the number of ith type customers served by jth group channels in equilibrium. An explicit formula for P(Xij = kij , i = 1, ···, m; j = 1, ···, n) is found. It is shown in a form of a local limit theorem that the asymptotic distribution of {Xij } is a multidimensional normal, if Qj/N and Qj/N have positive limits as N → ∞. Formulas for mean values and covariances are given. It turns out that the means of Xij and covariances between Xij and Xrk can be found, using an efficient iterative algorithm, from the deterministic version of the system. A numerical example demonstrates that the normal approximation is rather accurate.

One-node closed multichannel service system: several types of customers and service rates, and random pick-up from the waiting line

1987 ◽  
Vol 19 (2) ◽  
pp. 487-504 ◽  
Author(s):  
O. Bronshtein ◽  
I. Gertsbakh ◽  
B. Pittel ◽  
S. Shahaf
Keyword(s):  
Queueing System ◽  
Normal Approximation ◽  
Local Limit Theorem ◽  
Local Limit ◽  
Mean Values ◽  
System A ◽  
Service Rates ◽  
Multichannel Service ◽  
Waiting Line ◽  
Service Channels

A closed queueing system has Q service channels and a waiting line. There are Ni customers of type i in the system, i = 1, ···, m, ∑mi=1Ni = N > Q. Q customers are served and Q0 = N – Q stay in the waiting line. Q channels are partitioned into n groups with Qj channels in the jth group, j = 1, ···, n. The service time of the ith type customer by a channel of the jth group is τij ~ Exp (λij). When a customer leaves the channel, it is immediately replaced by another one picked up randomly from the waiting time. The customer which has cleared service joins the waiting line without delay. Let Xij be the number of ith type customers served by jth group channels in equilibrium. An explicit formula for P(Xij = kij, i = 1, ···, m; j = 1, ···, n) is found. It is shown in a form of a local limit theorem that the asymptotic distribution of {Xij} is a multidimensional normal, if Qj/N and Qj/N have positive limits as N → ∞. Formulas for mean values and covariances are given. It turns out that the means of Xij and covariances between Xij and Xrk can be found, using an efficient iterative algorithm, from the deterministic version of the system. A numerical example demonstrates that the normal approximation is rather accurate.

Application of Cellular Automata for a Generative Art System

Leonardo ◽  
2016 ◽  
Vol 49 (5) ◽  
pp. 431-435 ◽  
Author(s):  
Jae Kyun Shin
Keyword(s):  
Cellular Automata ◽  
Future Research ◽  
Research Topics ◽  
Generative Art ◽  
System A ◽  
Complex Patterns ◽  
Tiling Patterns

In this article, the author describes a study that proposes the use of cellular automata (CA) as a useful tool for a creative pattern-generating art system. A one-rule firing CA is used to efficiently represent basic CA patterns. The key idea in this method is to mix basic patterns in order to design complex patterns. Two types of mixing—iterative and hierarchical—are introduced. The results are demonstrated through example patterns, including ornamental and tiling patterns. The concept of an expanded neighborhood is introduced and applied to the generation of flower-like images. The author concludes with several suggestions for future research topics in relation to the proposed method.

scholarly journals A Novel, Automated, and Real-Time Method for the Analysis of Non-Human Primate Behavioral Patterns Using a Depth Image Sensor

2022 ◽  
Vol 12 (1) ◽  
pp. 471
Author(s):  
Sang Kuy Han ◽  
Keonwoo Kim ◽  
Yejoon Rim ◽  
Manhyung Han ◽  
Youngjeon Lee ◽  
...  
Keyword(s):  
Home Cage ◽  
Tracking System ◽  
Image Sensor ◽  
Optical Tracking ◽  
Depth Image ◽  
Behavioral Patterns ◽  
Optical Tracking System ◽  
System A ◽  
Measurement Results ◽  
Human Primate

By virtue of their upright locomotion, similar to that of humans, motion analysis of non-human primates has been widely used in order to better understand musculoskeletal biomechanics and neuroscience problems. Given the difficulty of conducting a marker-based infrared optical tracking system for the behavior analysis of primates, a 2-dimensional (D) video analysis has been applied. Distinct from a conventional marker-based optical tracking system, a depth image sensor system provides 3-D information on movement without any skin markers. The specific aim of this study was to develop a novel algorithm to analyze the behavioral patterns of non-human primates in a home cage using a depth image sensor. The behavioral patterns of nine monkeys in their home cage, including sitting, standing, and pacing, were captured using a depth image sensor. Thereafter, these were analyzed by observers’ manual assessment and the newly written automated program. We confirmed that the measurement results from the observers’ manual assessments and the automated program with depth image analysis were statistically identical.

New Design for a Differentially Pumped Hydration Chamber for a Siemens IA

1971 ◽  
Vol 29 ◽  
pp. 44-45
Author(s):  
R. C. Moretz ◽  
G. G. Hausner ◽  
D. F. Parsons
Keyword(s):  
Electron Microscopy ◽  
Water Vapor ◽  
Electron Diffraction ◽  
Water Vapor Pressure ◽  
Biological Materials ◽  
Thin Membrane ◽  
Reliable System ◽  
System A ◽  
Water Films ◽  
Aperture Opening

Electron microscopy and diffraction of biological materials in the hydrated state requires the construction of a chamber in which the water vapor pressure can be maintained at saturation for a given specimen temperature, while minimally affecting the normal vacuum of the remainder of the microscope column. Initial studies with chambers closed by thin membrane windows showed that at the film thicknesses required for electron diffraction at 100 KV the window failure rate was too high to give a reliable system. A single stage, differentially pumped specimen hydration chamber was constructed, consisting of two apertures (70-100μ), which eliminated the necessity of thin membrane windows. This system was used to obtain electron diffraction and electron microscopy of water droplets and thin water films. However, a period of dehydration occurred during initial pumping of the microscope column. Although rehydration occurred within five minutes, biological materials were irreversibly damaged. Another limitation of this system was that the specimen grid was clamped between the apertures, thus limiting the yield of view to the aperture opening.

High-resolution electron microscopy of Cu2O surfaces

1986 ◽  
Vol 44 ◽  
pp. 396-397
Author(s):  
V. Castano ◽  
W. Krakow
Keyword(s):  
High Resolution ◽  
Natural Extension ◽  
High Resolution Electron Microscopy ◽  
Point Of View ◽  
Initial Oxidation ◽  
System A ◽  
Resolution Electron ◽  
Surface Reconstructions ◽  
Atomic Surface ◽  
Au Thin Films

In non-UHV microscope environments atomic surface structure has been observed for flat-on for various orientations of Au thin films and edge-on for columns of atoms in small particles. The problem of oxidation of surfaces has only recently been reported from the point of view of high resolution microscopy revealing surface reconstructions for the Ag2O system. A natural extension of these initial oxidation studies is to explore other materials areas which are technologically more significant such as that of Cu2O, which will now be described.

Twin boundary structure of a Y-Ba-Cu-O superconductor

1989 ◽  
Vol 47 ◽  
pp. 168-169
Author(s):  
Yimei Zhu ◽  
Masaki Suenaga ◽  
R. L. Sabatini ◽  
Youwen Xu
Keyword(s):  
Twin Boundary ◽  
Fine Particles ◽  
Imaging Techniques ◽  
Fine Powder ◽  
Orthorhombic Phase ◽  
Boundary Structure ◽  
Crystallographic Axis ◽  
System A ◽  
High Resolution Structure ◽  
Electron Microscopes

The (110) twin structure of YBa2Cu3O7 superconductor oxide, which is formed to reduce the strain energy of the tetragonal to orthorhombic phase transformation by alternating the a-b crystallographic axis across the boundary, was extensively investigated. Up to now the structure of the twin boundary still remained unclear. In order to gain insight into the nature of the twin boundary in Y-Ba-Cu-O system, a study using electron diffraction techniques including optical and computed diffractograms, as well as high resolution structure imaging techniques with corresponding computer simulation and processing was initiated.Bulk samples of Y-Ba-Cu-O oxide were prepared as described elsewhere. TEM specimens were produced by crushing bulk samples into a fine powder, dispersing the powder in acetone, and suspending the fine particles on a holey carbon grid. The electron microscopy during this study was performed on both a JEOL 2000EX and 2000FX electron microscopes operated at 200 kV.

Speech Therapy Services in a Large School System: A Six-Year Overview

1976 ◽  
Vol 7 (4) ◽  
pp. 207-219 ◽  
Author(s):  
Constance P. DesRoches
Keyword(s):  
School System ◽  
Speech Therapy ◽  
Factors Affecting ◽  
Case Load ◽  
Number Of Children ◽  
School Population ◽  
System A ◽  
Therapy Services ◽  
And Shifts ◽  
Selection Factors

A statistical review provides analysis of four years of speech therapy services of a suburban school system which can be used for comparison with other school system programs. Included are data on the percentages of the school population enrolled in therapy, the categories of disabilities and the number of children in each category, the sex and grade-level distribution of those in therapy, and shifts in case-load selection. Factors affecting changes in case-load profiles are identified and discussed.

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