| The effects of inverter magnetic fields on early seed germination of mung beans. | |
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MedLine Citation:
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PMID: 18521844 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The biological effects of extremely low frequency magnetic fields (ELF MFs) on living organisms have been explored in many studies. Most of them demonstrate the biological effects caused by 50/60 Hz magnetic fields or pulsed magnetic fields. However, as the development of power electronics flourishes, the magnetic fields induced are usually in other different waveforms. This study aims to assess the effects of magnetic fields generated by inverter systems on the early growth of plants using mung beans as an example. In the experiment, an inverter which can produce sinusoidal pulsed width modulation (SPWM) voltages was used to drive 3 specially made circular coils and an AC motor. Six SPWM voltages with different fundamental frequencies (10, 20, 30, 40, 50, and 60 Hz) set on the inverter drive the circuit to produce the specific kinds of MFs. The results indicate that the magnetic field induced by a 20 or 60 Hz SPWM voltage has an enhancing effect on the early growth of mung beans, but the magnetic fields induced by SPWM voltages of other frequencies (30, 40, and 50 Hz) have an inhibitory effect, especially at 50 Hz. |
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Authors:
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Hsin-Hsiung Huang; Show-Ran Wang |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Bioelectromagnetics Volume: 29 ISSN: 1521-186X ISO Abbreviation: Bioelectromagnetics Publication Date: 2008 Dec |
Date Detail:
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Created Date: 2008-11-26 Completed Date: 2009-02-02 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8008281 Medline TA: Bioelectromagnetics Country: United States |
Other Details:
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Languages: eng Pagination: 649-57 Citation Subset: IM |
Affiliation:
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Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan, ROC. hhhuangd@yahoo.com.tw |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Dose-Response Relationship, Radiation Electricity Electromagnetic Fields Fabaceae / growth & development*, radiation effects* Germination / physiology*, radiation effects* Radiation Dosage Seeds / growth & development*, radiation effects* |
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