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7-020-S-ThermometerInVaryingTempStream
22 Aug 2018 | | Contributor(s):: Norman Loney
We present a differential equation model for the temperature of a mercury thermometer which is sitting in a stream of water whose temperature oscillates. We suggest a solving strategy which uses Laplace Transforms.
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4-055-S-ShatterWineGlass
20 Aug 2018 | | Contributor(s):: Jue Wang
This module takes students through real life scenarios to examine resonance and its destructive power using differential equation models. What is resonance? How does it happen? Why is it important? Three cases are presented: shattering a wine glass, collapse of a suspension bridge, and crash of...
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2008-Witt-Hansen, Ole - Examples Of Differential Equations In Physics.
28 Nov 2017 | | Contributor(s):: Brian Winkel
Witt-Hansen, Ole. Examples Of Differential Equations In Physics. Article. 29 pp.Source: www.olewitthansen.dk . Accessed 27 November 2017.This is an article from the author’s homepage. The work contains fundamental and basic background and derivation of the differential...
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2017-Morin, David - Oscillations - Notes
11 Sep 2017 | | Contributor(s):: Brian Winkel
Morin, David. Oscillations. http://www.people.fas.harvard.edu/~djmorin/waves/oscillations.pdf . Accessed 11 September 2017. Notes. 37 pp.From the first page“A wave is a correlated collection of oscillations. For example, in a transverse wave traveling along a string, each point in...
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2011-Shibberu, Yosi - MA211 Differential Equations. Class Notes
09 Sep 2017 | | Contributor(s):: Brian Winkel
Shibberu, Yosi. 2011. MA211 Differential Equations. Class Notes. PowerPoint. 426 slides. https://www.rose-hulman.edu/~shibberu/MA211/Slides.pdf . Accessed 1 September 2017This is a very good set of course slides and the Table of Contents is given here. Since this is a mathematics...
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2003-Fay, T.H. and S. D. Graham - Coupled spring equations.
08 Sep 2017 | | Contributor(s):: Brian Winkel
Fay, T.H. and S. D. Graham. 2003. Coupled spring equations. Int.J. Math. Educ. Sci. Technol. 34(1): 65-79. See https://www.tandfonline.com/doi/abs/10.1080/0020739021000029258 . ABSTRACT Coupled spring equations for modelling the motion of two springs with...
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1967-Israelsson, D. and A. Johnsson - Circumnutations In Helianthus Annuus
08 Sep 2017 | | Contributor(s):: Brian Winkel
Israelsson, D. and A. Johnsson. 1967. A Theory for Circumnutations in Helianthus annuus. Physiologia Plantarum. 20: 957-976.https://onlinelibrary.wiley.com/doi/10.1111/j.1399-3054.1967.tb08383.x Abstract:“A theory is given for circumnutations in plants,...
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1969-Israelsson, D. and A. Johnsson - Phase Shift In Geotropical Oscillations
08 Sep 2017 | | Contributor(s):: Brian Winkel
Israelsson, D. and A. Johnsson. 1969. Phase-shift in Geotropic Oscillations a Theoretical and Experimental Study. Physiologia Plantarum. 22: 1226-1237.See https://pubmed.ncbi.nlm.nih.gov/20925673/ .The paper studies geotropical induced phase-shifts in circumnutations (turning)...
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1-043-S-CoolingUpAndDown
26 Aug 2017 | | Contributor(s):: Brian Winkel
We consider modeling the attempt of an air conditioner to cool a room to a ``constant'' temperature.
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3-101-S-SpringMassFirstTry
22 Jul 2016 | | Contributor(s):: Keith Alan Landry, Brian Winkel
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1977-Mackey, Michael C. and Leon Glass - Oscillation and Chaos in Physiological Control Systems
26 Jun 2015 | | Contributor(s):: Michael C. Mackey, Leon Glass, William Clark
Mackey, Michael C. and Leon Glass. 1977. Oscillation and Chaos in Physiological Control Systems. Science. 197: 287-289.See https://www.science.org/doi/abs/10.1126/science.267326 .Article Abstract: First-order nonlinear differential-delay equations describing physiological control...
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9-012-S-PDEGuitarTuning
04 Jun 2015 | | Contributor(s):: Brian Winkel
We present a derivation of a partial differential equation which models the motion of a string held at both ends, a case of the one-dimensional wave equation. We immediately offer numerical solutions in a computer algebra system (we use Mathematica, but any...