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作者:Jyh-Woei , Lin
来源:[J].Asian Journal of Natural & Applied Sciences, 2015, Vol.4 (4)Leena and Luna International Pvt Limited
摘要:In this study, the ionospheric Total Electron Content (TEC) data of 5 days before Indonesia Nebe earthquake occurred at 13:45:05 (UT) on 27 February 2015 ( =7.0) with the depth of 547km and the epicentre of 7.277°S, 122.534°E were examined to detect TEC precursor by using Tw...
作者:Lin Jyh-Woei
来源:[J].Asian Journal of Natural & Applied Sciences, 2015, Vol.4 (2)Leena and Luna International Pvt Limited
摘要:Two F/A-18 Hornets from Carrier Air Wing 17 embarked on the aircraft carrier USS Carl Vinson crashed at 5:40 (UT) about 290 miles west of Wake Island on 12 September 2014. A large geomagnetic storm simultaneously occurred due to the X-Class solar flare at 17:46 (UT) on 10 Septemb...
作者:Lin Jyh-Woei
来源:[J].Asian Journal of Natural & Applied Sciences, 2015, Vol.4 (1)Leena and Luna International Pvt Limited
摘要:A data processing strategy to suppress seismic noises by Wigner Distribution (WD) method through signal decomposition in time-frequency domain is demonstrated. The 48 WDs are used for a profile with 48 channel vertical component geophone records. The level seismograms from the 48...
作者:Jyh-Woei , Lin
来源:[J].Asian Journal Of Natural & Applied Sciences, 2016, Vol.5 (4)Leena and Luna International Pvt Limited
摘要:This paper used two-dimensional Principal Component Analysis (2DPCA) to determine total electron content (TEC) respond in the ionosphere for the huge gas explosion in Kaohsiung, Taiwan at 15: 59 (UT) on 31 July 2014. Results have shown that at a TEC anomaly over Kaohsiung and Tai...
作者:Jyh-Woei , Lin
来源:[J].Asian Journal Of Natural & Applied Sciences, 2016, Vol.5 (2)Leena and Luna International Pvt Limited
摘要:Two-dimensional principal component analysis (2DPCA) are used to examine the ionospheric total electron content (TEC) data during the time period from 00:00 on 20 April to 06: 10 on 25 April (UT) 2015, which are 5 days before the Mw=7.8 Nepal earthquake at 06:11:25 on 25 Apr...
作者:Lin , Jyh-Woei
来源:[J].Asian Journal Of Natural & Applied Sciences, 2016, Vol.5 (1)Leena and Luna International Pvt Limited
摘要:Fractional Fourier Transforms (FRFT) is introduced in this study. The basis of the FRFT with nostationary behaviors is a chirp-like function related to sinusoid basis of Fourier Transforms. Therefore, the FRFT could be considered as the Chirp-like Transforms.
作者:Jyh-Woei , Lin
来源:[J].Asian Journal Of Natural & Applied Sciences, 2016, Vol.5 (3)Leena and Luna International Pvt Limited
摘要:In this paper uses, a mathematical tool called two dimensional Principal Component Analysis (2DPCA) to determine total electron content (TEC) anomalies in the ionosphere for a Tropical Cyclone such as the Nakri Typhoon on 29 May, 2008 (UTC). 2DPCA are applied to the global i...

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