Methods of constructing an outline simple closed contour for modeling functional spine unit on CT slice

2020 ◽  
Author(s):  
Dmitry Dol' ◽  
Alexander S. Dol ◽  
Leonid V. Bessonov ◽  
Dmitry Ivanov ◽  
Alexander S. Beskrovny ◽  
...  
Keyword(s):  
Closed Contour

scholarly journals Multifractal Properties of a Closed Contour: A Peek beyond the Shape Analysis

PLoS ONE ◽  
2014 ◽  
Vol 9 (12) ◽  
pp. e115262 ◽  
Author(s):  
Paulo Duarte-Neto ◽  
Borko Stošić ◽  
Tatijana Stošić ◽  
Rosangela Lessa ◽  
Milorad V. Milošević ◽  
...  
Keyword(s):  
Shape Analysis ◽  
Closed Contour

Closed contour edge detection of blood vessel lumen and outer wall boundaries in black-blood MR images

1999 ◽  
Vol 17 (2) ◽  
pp. 257-266 ◽  
Author(s):  
Chun Yuan ◽  
Eugene Lin ◽  
Jacob Millard ◽  
Jenq–Neng Hwang
Keyword(s):  
Blood Vessel ◽  
Edge Detection ◽  
Outer Wall ◽  
Black Blood ◽  
Closed Contour ◽  
Mr Images ◽  
Vessel Lumen

Theoretical Preconditions of Creation of Self-Adjusted Mechanisms

2016 ◽  
Vol 859 ◽  
pp. 37-45
Author(s):  
Konstantin Samson Ivanov
Keyword(s):  
Control System ◽  
External Loading ◽  
Closed Contour ◽  
Force Analysis ◽  
Proved Theorem ◽  
Transfer Ratio ◽  
Effective Generation ◽  
Highly Effective ◽  
Force Moment

On the basis of the force analysis of two mobile mechanisms containing a mobile closed contour the theoretical preconditions of creation of self-adjusted mechanisms is developed. The load design of mechanism is executed on the basis of the proved theorem of a derivative on a time from the force moment. Brand new property of self-adjustment is found. Mechanism self-adjustment allows it to be independently conforming to variable external loading by change of speed. Property of self-adjustment allows creating the mechanisms with variable transfer ratio depending on loading. Self-adjusted mechanisms are simple on the device and are working without a control system. Self-adjusted mechanisms (for example, self-adjusted gear boxes) are determining a new highly effective generation of drives of machines with variable technological resistance.

CHAOTIC BEHAVIOR OF ORBITS CLOSE TO A HETEROCLINIC CONTOUR

1996 ◽  
Vol 06 (01) ◽  
pp. 69-79 ◽  
Author(s):  
M. BLÁZQUEZ ◽  
E. TUMA
Keyword(s):  
Chaotic Behavior ◽  
Equilibrium Points ◽  
Three Dimensional ◽  
Dimensional Case ◽  
Chua’S Circuit ◽  
Closed Contour ◽  
Chua's Circuit ◽  
Infinite Dimensional ◽  
Focus Type

We study the behavior of the solutions in a neighborhood of a closed contour formed by two heteroclinic connections to two equilibrium points of saddle-focus type. We consider both the three-dimensional case, as in the well-known Chua's circuit, as well as the infinite-dimensional case.

Singularity Analysis of Rigid-Body, Closed-Loop, Shape-Changing Mechanisms

2008 ◽  
Author(s):  
David Myszka ◽  
Andrew Murray ◽  
James Schmiedeler
Keyword(s):  
Rigid Body ◽  
Body Shape ◽  
Closed Loop ◽  
Singularity Analysis ◽  
Closed Contour ◽  
Condensed Form ◽  
Loop Shape

This paper presents an analysis to create a general singularity condition for a mechanism that contains a deformable closed contour. This kinematic architecture is widely used in rigid-body shape changing mechanisms. The general singularity equation is reduced to a condensed form, which allows geometric relationships to be readily detected. A method for formulating the singularity condition for a mechanism with N links in the closed contour, knowing the condition for the N − 1 mechanism, is also given.

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