The Dielectric Loss Measurement Method of Wiener Filtering and STFT Interpolation Harmonic Analysis Based on Wavelet Transform

2009 ◽  
Author(s):  
Shen Xianqing ◽  
Wang Chengyuan
Keyword(s):  
Wavelet Transform ◽  
Dielectric Loss ◽  
Harmonic Analysis ◽  
Measurement Method ◽  
Wiener Filtering ◽  
Loss Measurement

Research about Dielectric Loss Detector Based on Frequency Conversion Method

2013 ◽  
Vol 380-384 ◽  
pp. 3179-3183
Author(s):  
Guo Hua Hua ◽  
Zhong Ru Shen
Keyword(s):  
Dielectric Loss ◽  
Harmonic Analysis ◽  
Loss Factor ◽  
Frequency Conversion ◽  
Dielectric Loss Factor ◽  
Loss Measurement ◽  
Conversion Method ◽  
Equivalent Capacitance

This paper adopts frequency conversion method to avoid same frequency interfered, and deduces the dielectric loss factor and the equivalent capacitance using the harmonic analysis. Based on this theory, a DSP+FPGA detecting platform was built. At last, utilizing capacitance and resistance to simulate as dielectric loss measurement sample, the experiment was conducted.

Dielectric Loss Measurement of Plasma Polymerized Ethylene Films in Vacuo and Effect of Hydrogen Treatment

1982 ◽  
Vol 21 (Part 1, No. 1) ◽  
pp. 195-196 ◽  
Author(s):  
Naohiro Hozumi ◽  
Toshiyuki Takao ◽  
Yoshimichi Ohki
Keyword(s):  
Dielectric Loss ◽  
Hydrogen Treatment ◽  
Loss Measurement

scholarly journals Postpartum Blood Loss Measurement Using Digital Image Processing

2018 ◽  
Vol 73 ◽  
pp. 13023
Author(s):  
Siska Febrina Fauziah ◽  
Suryono Suryono ◽  
Melyana Nurul Widyawati
Keyword(s):  
Image Processing ◽  
Blood Loss ◽  
Blood Volume ◽  
Digital Image Processing ◽  
Digital Image ◽  
Measurement Method ◽  
Delivery Care ◽  
Loss Measurement ◽  
Postpartum Blood Loss ◽  
Image Area

Most of maternal mortality is directly caused by obstetric hemorrhage and almost three-quarters of it take place in postpartum period. The risk of maternal death due to hemorrhage can be reduced with prompt and proper care that in turn relates to the blood loss measurement method used. Unfortunately, the most commonly practiced method is not yet accurate enough. This research proposes a postpartum blood loss measurement method using digital image processing. Initially, characterization is carried out to find out blood absorbance against digital image area and blood volume in the underpad. Results of this characterization then serve as the basis for blood loss measurement using digital image processing. This measurement basis is validated by measuring blood volume lost during delivery care. Results show that the area and volume of blood absorbed in the underpad has significant linear relation (R = 0.9734). Digital image processing can be used to measure postpartum blood loss with a high accuracy up to 83.7%. The use of this method is therefore an accurate and objective alternative to the other available method. Nonetheless, the use of this new method must also adhere to standard guidelines in delivery care as to ensure the utmost outcomes.

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