Study of an Analog Computer System for Reconstruction of Three-Dimensional Figures from Planar Projections

1967 ◽  
Vol 16 (3) ◽  
pp. 238-241
Author(s):  
Eitan Hirsch
Keyword(s):  
Computer System ◽  
Three Dimensional ◽  
Analog Computer

The Accuracy of One Method for Mechanism Simulation by Electronic Analog Computer

1965 ◽  
Vol 87 (2) ◽  
pp. 235-242 ◽  
Author(s):  
Robert E. Keller
Keyword(s):  
Computer System ◽  
Analog Computer ◽  
Four Bar Linkage

A method for the simulation of mechanisms on the electronic analog computer has been developed. In this paper a detailed discussion of the accuracy of the simulation is presented. Particular attention is given to the accuracy of the simulation of the simple kinematic link. Consideration is also made of the accuracy of the simulation when utilized in the study of complete mechanisms, for example, the accuracy to be expected of coupler curves for the four-bar linkage as generated by the simulation. Sample curves are given and their accuracy discussed. General relationships for achievement of an optimal computer system are presented.

Evoked Responses to Auditory Stimuli in Man Using a Summing Computer

1964 ◽  
Vol 7 (2) ◽  
pp. 193-202 ◽  
Author(s):  
Geary A. McCandless ◽  
LaVar Best
Keyword(s):  
Computer System ◽  
Age Groups ◽  
Stimulus Presentation ◽  
Analog Computer ◽  
Electrode Placement ◽  
Evoked Responses ◽  
Response Patterns ◽  
Stimulus Parameter ◽  
Auditory Responses ◽  
Stimulus Repetition Rate

A special purpose analog computer system was used to measure evoked auditory responses in children and adults. The responses were studied as a function of stimulus intensity, electrode placement, monaural-binaural stimulus presentation, and stimulus repetition rate. The purpose of the study was to evaluate the use of a summing computer system as a device to assess hearing in children and adults. Consistent evoked responses were obtained near threshold levels. Evoked response patterns vary in different age groups, and the pattern is modified by changes in stimulus parameter and electrode placement. Results suggest that a summing computer may hold real promise as a tool for providing information concerning auditory function.

scholarly journals Three Dimensional Analysis of Human Locomotion with on-line Computer System

1994 ◽  
Vol 53 (Suppl-10) ◽  
pp. 54-57
Author(s):  
Junshi Yamakawa ◽  
Shinji Nozawa ◽  
Eishi Hirasaki ◽  
Hiroo Kumakura ◽  
Takeshi Kubo
Keyword(s):  
Computer System ◽  
Dimensional Analysis ◽  
Three Dimensional ◽  
Human Locomotion ◽  
On Line

scholarly journals Three-Dimensional Graphics of Melon Plant Vascular System Using a Micro-Computer System

1989 ◽  
Vol 58 (3) ◽  
pp. 679-684 ◽  
Author(s):  
Toyoki KOZAI ◽  
Aki MASUKO ◽  
Koki KANAHAMA
Keyword(s):  
Computer System ◽  
Vascular System ◽  
Three Dimensional

Elaboration of the Functioning Algorithm of Three - Dimensional Model of Computer System Safety

2019 ◽  
Author(s):  
Victor V. Zhilin ◽  
Irina I. Drozdova ◽  
Ivan A. Sakharov ◽  
Larissa V. Cherckesova ◽  
Vitaliy M. Porksheyan ◽  
...  
Keyword(s):  
Computer System ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
System Safety

The Influence of Internal Friction on the Stability of High Speed Rotors With Anisotropic Supports

1969 ◽  
Vol 91 (4) ◽  
pp. 1105-1113 ◽  
Author(s):  
E. J. Gunter ◽  
P. R. Trumpler
Keyword(s):  
Internal Friction ◽  
High Speed ◽  
Equations Of Motion ◽  
Three Dimensional ◽  
Analog Computer ◽  
Three Dimensional Model ◽  
Stiffness Properties ◽  
Stiffness Characteristics ◽  
The Stability ◽  
Internal Rotor

This paper evaluates the stability of the single mass rotor with internal friction on damped, anisotropic supports. The paper shows under what conditions the rotor stability may be improved by an undamped support with anisotropic stiffness properties. A three dimensional model is presented to show the influence of rotor and support stiffness characteristics on stability. Curves are also presented on how support damping may also improve or even reduce rotor stability. An analog computer solution of the governing equations of motion is presented showing the shaft transient motion for various speed ranges, and also plots of the rotor steady state motion are given for various speeds up to and including the stability threshold. The analysis is used to explain many of the experimental observations of B. L. Newkirk concerning stability due to internal rotor friction.

Stereoscopic Drawings Made by Analog Computer of Three-Dimensional Surfaces Generated by Spatial Mechanism

1971 ◽  
Vol 93 (1) ◽  
pp. 239-250
Author(s):  
L. E. Torfason ◽  
F. R. E. Crossley
Keyword(s):  
Three Dimensional ◽  
Analog Computer ◽  
Ball Joint ◽  
Spatial Mechanism ◽  
Transmission Properties ◽  
Spatial Mechanisms ◽  
As If

Spatial mechanisms with up to five links and containing at least one ball joint can be solved by considering the intersection of the three dimensional surfaces which can be generated by portions of the mechanism. This paper presents a method whereby stereoscopic pairs of the surfaces can be drawn using an electronic analog computer and the figures viewed as if they were three dimensional. This results in a far better visualization of the surfaces. In many cases it can be seen what the type of intersection between surfaces is. This determines the gross motion of the mechanism, the limits of its motion, and an estimate of its transmission properties.

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