Zobrazeno 1 - 10 of 206 pro vyhledávání: '"Karl E. Lonngren"'
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Akademický článek
Interpreting employment in a recession using an epidemiological model
Autor: Karl E. Lonngren
Publikováno v: Cogent Engineering, Vol 1, Iss 1 (2014)
This note suggests that the employment characteristics in a typical recession are somewhat similar to the disease characteristics found in an epidemic. Preliminary numerical results indicate that the model may have some validity.
Externí odkaz: https://doaj.org/article/7e24bbdae09b465a9b263ae18bc41c6b
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2
A quick Look at the Registered Cases of Covid-19 Throughout the World
Autor: Raúl Isea, Karl E. Lonngren
Publikováno v: International Journal of Coronaviruses. 1:15-20
The present work analyzes the registered cases of Covid-19 throughout the world according the data registered at Johns Hopkins University. We selected 15 countries to analyze their data. In alphabetical order the countries are: Argentina, Australia,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f577eb59e2de36552b2626b416c04e3e
https://doi.org/10.14302/issn.2692-1537.ijcv-20-3453
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4
Interference and Diffraction
Autor: Akira Hirose, Karl E. Lonngren
Publikováno v: Fundamentals of Wave Phenomena ISBN: 9781891121920
This chapter covers the following topics: Interference Between Two Harmonic Waves; Young's Experiment; Multislit Structure; Optical Interference in Thin Films; Diffraction I (Fraunhofer Diffraction); Resolution of Optical Devices and Diffraction II (
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::86914e80b7ff36e962086873a4fb73c2
https://doi.org/10.1049/sbew044e_ch11
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5
Radiation of Electromagnetic Waves
Autor: Karl E. Lonngren, Randy Jost, Sava V. Savov
Publikováno v: Fundamentals of Wave Phenomena ISBN: 9781891121920
In the previous chapters, we learned that electromagnetic waves can propagate in free space of an infinite extent and that these same waves can also 240 300 270 propagate along a common transmission line. A question that remains to be answered is whe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::24adf46d882acbba9e5fb4fba73f860d
https://doi.org/10.1049/sbew044e_ch10
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7
Fourier Analyses and Laplace Transformation
Autor: Karl E. Lonngren, Akira Hirose
Publikováno v: Fundamentals of Wave Phenomena ISBN: 9781891121920
The chapter discusses the sinusoidal functions, Fourier series, Fourier spectrum operator method, Laplace transform. We have studied many kinds of waves (mechanical and electromagnetic) in terms of sinusoidal waves.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::601a7dd7caee6be129005c324ebdc63b
https://doi.org/10.1049/sbew044e_ch14
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10
Spherical Waves, Waves in a Nonuniform Media, and Multidimensional Waves
Autor: Akira Hirose, Karl E. Lonngren
Publikováno v: Fundamentals of Wave Phenomena ISBN: 9781891121920
We have frequently used the following representative waveform equation in order to describe several kinds of waves (waves on a string, sound waves in gases and solids, etc.) where 0 is the amplitude of the sinusoidal displacement wave. The amplitude
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::540aee7b6f021e404e824b940b3a2b33
https://doi.org/10.1049/sbew044e_ch7
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