The Trend of High-Frequency Technologies to Bring New Developments in the Electromagnetic Wave Applications

2018 ◽  
Vol 138 (2) ◽  
pp. 136-139
Author(s):  
Yoshinori Kogami
Keyword(s):  
Electromagnetic Wave ◽  
High Frequency ◽  
New Developments

scholarly journals Effects of Assistance of High Frequency Dielectric and Infrared Heating on Vacuum Freeze Drying Characteristics of Food Model

2018 ◽  
Author(s):  
Atsushi Hashimoto ◽  
Ken-ichiro Suehara ◽  
Takaharu Kameoka ◽  
Kazuhiko Kawamura
Keyword(s):  
Electromagnetic Wave ◽  
Sodium Chloride ◽  
High Frequency ◽  
Freeze Drying ◽  
Infrared Heating ◽  
Drying Time ◽  
Drying Characteristics ◽  
Additive Component ◽  
Wave Heating ◽  
Food Model

By combining vacuum freeze drying combined with high-frequency dielectric and/or infrared heating, the drying time for frozen gels containing 1% agar with sucrose or sodium chloride was successfully shorten, and the drying time was influenced by the heating methods and by the additive component to the sample. Additionally, it was experimentally confirmed that the power consumption for freeze drying combined with electromagnetic wave heating could be reduced because of the shortened drying time. Consequently, this study could be a very important step for designing a vacuum freeze drying process optimally combining electromagnetic wave heating for each sample component.Keywords: freeze drying, electromagnetic wave heating, food model, sucrose, sodium chloride

A Novel Lwd Tool Based on High-Frequency Electromagnetic Wave Used for Determining and Ranging Reservoir Boundary

2019 ◽  
Author(s):  
Xinmiao Teng ◽  
Limin Sheng ◽  
Liancheng Zhang ◽  
Weiping Ai ◽  
Wenkai Gao ◽  
...  
Keyword(s):  
Electromagnetic Wave ◽  
High Frequency

scholarly journals Toward the Application of High Frequency Electromagnetic Wave Absorption by Carbon Nanostructures

2019 ◽  
Vol 6 (8) ◽  
pp. 1801057 ◽  
Author(s):  
Qi Li ◽  
Zheng Zhang ◽  
Luping Qi ◽  
Qingliang Liao ◽  
Zhuo Kang ◽  
...  
Keyword(s):  
Electromagnetic Wave ◽  
High Frequency ◽  
Carbon Nanostructures ◽  
Electromagnetic Wave Absorption ◽  
Wave Absorption

Current Detection Methods of Partial Discharge for Distribution Network Switchgear

2014 ◽  
Vol 521 ◽  
pp. 313-316
Author(s):  
Yu Sheng Quan ◽  
Lin Jie Fang ◽  
Yan Wu ◽  
Zi Jian Wang
Keyword(s):  
Electromagnetic Wave ◽  
High Frequency ◽  
Partial Discharge ◽  
Outer Wall ◽  
Detection Methods ◽  
Total Current ◽  
Current Signal ◽  
Current Detection ◽  
Ground Line ◽  
Frequency Current

There are many factors that can lead to partial discharge in the internal of switchgear. High-frequency current will be generated on the inner wall of switchgear when the electromagnetic wave generated by partial discharge reaches the enclosure of switchgear. In the same way, more complex current signal will be produced on the outer wall of the switchgear because of the electromagnetic radiation outside the enclosure. These two currents will flow to earth through the switchgear ground wire. We can determine whether the switchgear exist partial discharge and the severity of the partial discharge by comparing the current flowing through the outer wall and the total current flowing through the ground line.

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