scholarly journals Evaluation on EM Scattering Properties From a Wind Farm by an Efficient High-Frequency Method

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 32425-32429
Author(s):  
Wei Yang ◽  
Conghui Qi ◽  
Yuyue Zhang
Keyword(s):  
High Frequency ◽  
Wind Farm ◽  
Frequency Method ◽  
Em Scattering

Investigating Fatigue Strength of Vacuum Carburized 17CrNi6-6 Steel Using a Resonance High Frequency Method

2014 ◽  
Vol 225 ◽  
pp. 45-52 ◽  
Author(s):  
Piotr Kula ◽  
Konrad Dybowski ◽  
Sebastian Lipa ◽  
Robert Pietrasik ◽  
Radomir Atraszkiewicz ◽  
...  
Keyword(s):  
High Pressure ◽  
Fatigue Strength ◽  
High Frequency ◽  
Vacuum Carburizing ◽  
Frequency Method ◽  
Single Degree Of Freedom ◽  
Bending Fatigue ◽  
Single Degree ◽  
Bending Fatigue Strength ◽  
Frequency Changes

The bending fatigue strength of 17CrNi6-6 steel subjected to vacuum carburizing with high pressure gas hardening has been measured using a novel high-frequency technique. The test records the changes in resonance and consists of observing resonance frequency changes in a vibrating system with a single degree of freedom as a result of the forming of a fatigue crack. Moreover, a mechanism of fatigue nucleation and propagation in steel hardened by vacuum carburizing is presented.

scholarly journals Structural drilling using the high-frequency (sonic) rotary method

2017 ◽  
Vol 64 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Jurij Šporin ◽  
Željko Vukelić
Keyword(s):  
High Frequency ◽  
Final Part ◽  
Frequency Method ◽  
High Quality ◽  
Core Drilling ◽  
Drilling Method ◽  
Highly Effective ◽  
Theoretical Foundations

AbstractIn Slovenia, there is widespread use of structural drilling along with classical core drilling. Recently, however, the need has arisen for a highly effective core drilling method with the aid of which high-quality core might be obtained. In order to achieve this aim, one among several Slovenian companies dealing with geological surveying has decided to implement structural drilling using a high-frequency drilling method. The following article presents the theoretical foundations for such a high-frequency method, as well as the manner of its implementation. In the final part of the article, a practical comparison between the conventional and the high-frequency core drilling methods is also provided.

Rapid determination of water in benzoyl peroxide by high frequency method

1973 ◽  
Vol 22 (11) ◽  
pp. 1440-1445
Author(s):  
Yuichi KAMURA ◽  
Sabro MIZUTANI ◽  
Keiko TOMIHISA ◽  
Masakazu SUGIYAMA
Keyword(s):  
Benzoyl Peroxide ◽  
High Frequency ◽  
Rapid Determination ◽  
Frequency Method

scholarly journals The high-frequency method for scattering from the wedges of complex conductive targets in half space

2009 ◽  
Vol 58 (2) ◽  
pp. 908
Author(s):  
Li Xiao-Feng ◽  
Xie Yong-Jun ◽  
Fan Jun ◽  
Wang Yuan-Yuan
Keyword(s):  
Half Space ◽  
High Frequency ◽  
Frequency Method
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