AI Article Synopsis
- The study analyzed the effects of 2.45 GHz microwaves on insects, noting that standing waves effectively converted to heat while traveling waves did not, indicating minimal thermal concerns for daily microwave exposure.
- Genotoxicity and changes in behavior were observed in insects exposed to traveling wave irradiation, suggesting potential non-thermal risks.
- Electron spin resonance tests showed that female fruit flies had higher levels of certain paramagnetic substances than males, correlating with the behavioral differences recorded in the experiments.
Article Abstract
The physiological and behavioral influences of 2.45 GHz microwaves on were examined. Standing waves transitioned into heat energy effectively when passing through the insect body. On the contrary, travelling waves did not transit into heat energy in the insect body. This indicated that there was no concern regarding the thermal effects of microwave irradiation for levels of daily usage. However, we detected genotoxicity and behavioral alterations associated with travelling wave irradiation, which can be attributed to the non-thermal effects of the waves. Electron spin resonance (ESR) revealed that fruit flies possessed paramagnetic substances in the body such as Fe, Cu, Mn, and organic radicals. The temperature dependent intensities of these paramagnetic substances indicated that females possessed more of the components susceptible to electromagnetic waves than males, and the behavioral tests supported the differences between the sexes.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7564283 | PMC |
| http://dx.doi.org/10.3390/insects11090598 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Design of a microwave spectrometer for high-precision Lamb shift spectroscopy of antihydrogen atoms.
Interactions (Cham)
March 2024
Institute of Physics, The University of Tokyo, Komaba, Meguro-ku, 153-8902 Tokyo Japan.
We have developed a microwave spectrometer for a measurement of the Lamb shift of antihydrogen atoms towards the determination of the antiproton charge radius. The spectrometer consists of two consecutive apparatuses, of which the first apparatus, (HFS), filters out hyperfine states and pre-selects the state, and the second apparatus, (MWS), sweeps the frequency around the target transition to obtain the spectrum. We optimized the geometry of the apparatuses by evaluating the S-parameter that represents the ratio of the reflected microwave signal over the input, utilizing microwave simulations based on the finite element method.
View Article and Find Full Text PDFDesign of a UWB circularly-polarized planar monopole antenna using characteristic mode analysis.
Sci Rep
October 2024
Department of Electronic Engineering, Hanyang University, Seoul, 04763, South Korea.
Article Synopsis
- - The study introduces a circularly-polarized planar monopole antenna designed for ultra-wideband (UWB) applications, utilizing characteristic mode analysis (CMA) to achieve broader bandwidths.
- - A crescent-shaped radiator and circular open-loop antenna initially had limited performance in achieving wideband characteristics; modifications like a triangular slit and L-shaped strip were added to improve the axial ratio bandwidth substantially.
- - The final design boasts a compact size and impressive performance metrics, including a -10 dB S bandwidth of 5.73-10.78 GHz, a 3 dB axial ratio bandwidth of 6-11.12 GHz, and effective gain and efficiency, demonstrating strong omnidirectional radiation patterns across frequencies. *
MOFs-Derived Strategy and Ternary Alloys Regulation in Flower-Like Magnetic-Carbon Microspheres with Broadband Electromagnetic Wave Absorption.
Nanomicro Lett
July 2024
Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Academy for Engineering & Technology, Fudan University, Shanghai, 200438, People's Republic of China.
Broadband electromagnetic (EM) wave absorption materials play an important role in military stealth and health protection. Herein, metal-organic frameworks (MOFs)-derived magnetic-carbon CoNiM@C (M = Cu, Zn, Fe, Mn) microspheres are fabricated, which exhibit flower-like nano-microstructure with tunable EM response capacity. Based on the MOFs-derived CoNi@C microsphere, the adjacent third element is introduced into magnetic CoNi alloy to enhance EM wave absorption performance.
View Article and Find Full Text PDFDual-band MIMO antenna with low mutual coupling for 2.4/5.8 GHz communication and wearable technologies.
PLoS One
April 2024
Department of Electrical Engineering, College of Engineering, Qassim University, Unaizah, Saudi Arabia.
To satisfy the requirements of modern communication systems and wearables using 2.4/5.8 GHz band this paper presents a simple, compact, and dual-band solution.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!