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Computer Program Detail Page

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Zeeman Heartbeat Model
written by Tyler Murray
The Zeeman Heartbeat Model uses work in Catastrophe Theory to create a simulation of the heartbeat cycle.  The heart is represented as a blue circle in phase space and travels from diastole to systole which are represented as the green circles.  Cardiac muscle fiber length (x) is represented on the y-axis and electrochemical activity (b) is represented on the x-axis.  The model calculates the heart rate (in beats per minute) and a variable called gamma which is intrinsic to the pacemaker.

The model allows the user to adjust several variables, including muscle tension and the location of diastole and systole, to see how the heart rate is affected.  Adjust tension by moving the slider at the top of the display or by manually entering a number into the field.  Adjust the location of diastole and systole by either dragging them or entering values into the fields at the bottom of the display.

The Zeeman Heartbeat Model was developed as a final project in a sophomore-level Computational Physics course (Phy 200) using the Easy Java JavaScript Simulation (EjsS) modeling tool.  It is distributed as a ready-to-run (compiled) Java archive.   Double clicking the jar file will run the program if Java is installed.  You can modify this simulation if you have EJS installed by right-clicking within the map and selecting "Open Ejs Model" from the pop-up menu item.

Please note that this resource requires at least version 1.6 of Java (JRE).
2 supplemental documents are available
1 source code document is available
Subjects Levels Resource Types
Modern Physics
- Chaos & Non-linear Dynamics
- Medical Physics
Oscillations & Waves
- Oscillations
= Non-Linear Systems
- Upper Undergraduate
- Graduate/Professional
- Lower Undergraduate
- Instructional Material
= Simulation
Intended Users Formats Ratings
- Learners
- Educators
- General Publics
- application/java
  • Currently 0.0/5

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Access Rights:
Free access
This material is released under a GNU General Public License Version 3 license.
Rights Holder:
Tyler Murray
Record Cloner:
Metadata instance created June 7, 2014 by Wolfgang Christian
Record Updated:
October 8, 2014 by Wolfgang Christian
Last Update
when Cataloged:
May 15, 2014
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
T. Murray, Computer Program ZEEMAN HEARTBEAT MODEL (2014), WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13268&DocID=3801).
T. Murray, Computer Program ZEEMAN HEARTBEAT MODEL (2014), <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13268&DocID=3801>.
APA Format
Murray, T. (2014). Zeeman Heartbeat Model [Computer software]. Retrieved June 12, 2024, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13268&DocID=3801
Chicago Format
Murray, Tyler. "Zeeman Heartbeat Model." https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13268&DocID=3801 (accessed 12 June 2024).
MLA Format
Murray, Tyler. Zeeman Heartbeat Model. Computer software. 2014. Java (JRE) 1.6. 12 June 2024 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13268&DocID=3801>.
BibTeX Export Format
@misc{ Author = "Tyler Murray", Title = {Zeeman Heartbeat Model}, Month = {May}, Year = {2014} }
Refer Export Format

%A Tyler Murray %T Zeeman Heartbeat Model %D May 15, 2014 %U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13268&DocID=3801 %O application/java

EndNote Export Format

%0 Computer Program %A Murray, Tyler %D May 15, 2014 %T Zeeman Heartbeat Model %8 May 15, 2014 %U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=13268&DocID=3801

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Zeeman Heartbeat Model:

Is Based On Easy Java Simulations Modeling and Authoring Tool

The Easy Java Simulations Modeling and Authoring Tool is needed to explore the computational model used in the Zeeman Heartbeat Model.

relation by Wolfgang Christian

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