http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Kanesan, Jeevan (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
A New Optimized Localized Technique of CG Return Stroke Lightning Channel in Forest
Kabir, Homayun,Kanesan, Jeevan,Reza, Ahmed Wasif,Ramiah, Harikrishnan,Dimyati, Kaharudin The Korean Institute of Electrical Engineers 2015 Journal of Electrical Engineering & Technology Vol.10 No.6
Localization of lightning strike point (LSP) in the forest is modeled to mitigate the forest fire damage. Though forest fire ignited by lightning rarely happens, its damage on the forest is grievousness. Therefore, predicting accurate location of LSP becomes crucial in order to control the forest fire. In this paper, we proposed a new hybrid localization algorithm by combining the received signal strength (RSS) and the received signal strength ratio (RSSR) to improve the accuracy by mitigating the environmental effect of lightning strike location in the forest. The proposed hybrid algorithm employs antenna theory (AT) model of cloud-to-ground (CG) return stroke lightning channel to forecast the location of the lightning strike. The obtained results show that the proposed hybrid algorithm achieves better location accuracy compared to the existing RSS method for predicting the lightning strike location considering additive white Gaussian noise (AWGN) environment.
-
A New Optimized Localized Technique of CG Return Stroke Lightning Channel in Forest
Homayun Kabir,Jeevan Kanesan,Ahmed Wasif Reza,Harikrishnan Ramiah,Kaharudin Dimyati 대한전기학회 2015 Journal of Electrical Engineering & Technology Vol.10 No.6
Localization of lightning strike point (LSP) in the forest is modeled to mitigate the forest fire damage. Though forest fire ignited by lightning rarely happens, its damage on the forest is grievousness. Therefore, predicting accurate location of LSP becomes crucial in order to control the forest fire. In this paper, we proposed a new hybrid localization algorithm by combining the received signal strength (RSS) and the received signal strength ratio (RSSR) to improve the accuracy by mitigating the environmental effect of lightning strike location in the forest. The proposed hybrid algorithm employs antenna theory (AT) model of cloud-to-ground (CG) return stroke lightning channel to forecast the location of the lightning strike. The obtained results show that the proposed hybrid algorithm achieves better location accuracy compared to the existing RSS method for predicting the lightning strike location considering additive white Gaussian noise (AWGN) environment.
-
Beisi Jiang,Leonid Churilov,Lasheta Kanesan,Richard Dowling,Peter Mitchell,Qiang Dong,Stephen Davis,Bernard Yan 대한뇌졸중학회 2017 Journal of stroke Vol.19 No.2
Background and Purpose Leptomeningeal collaterals maintain arterial perfusion in acute arterialocclusion but may fluctuate subject to arterial blood pressure (ABP). We aim to investigate therelationship between ABP and collaterals as assessed by computer tomography (CT) perfusion inacute ischemic stroke. Methods We retrospectively analyzed acute anterior circulation ischemic stroke patients with CTperfusion from 2009 to 2014. Collateral status using relative filling time delay (rFTD) determined bytime delay of collateral-derived contrast opacification within the Sylvian fissure, from 0 seconds tounlimited count. The data were analyzed by zero-inflated negative binomial regression modelincluding an appropriate interaction examining in the model in terms of occlusion location andonset-to-CT time (OCT). Results Two hundred and seventy patients were included. We found that increment of 10 mm Hgin BP, the odds that a patient would have rFTD equal to 0 seconds increased by 27.9% in systolicBP (SBP) (P=0.001), by 73.9% in diastolic BP (DBP) (P<0.001) and by 68.5% in mean BP (MBP)(P<0.001). For patients with rFTD not necessarily equal to 0 seconds, every 10 mm Hg increase inBP, there was a 7% decrease in expected count of seconds for rFTD in SBP (P=0.002), 10% decreasefor rFTD in DBP and 11% decrease for rFTD in MBP. The arterial occlusion location and OCT showedno significant interaction in the BP-rFTD relationship (P>0.05). Conclusions In acute ischemic stroke, higher ABP is possibly associated with improvedleptomeningeal collaterals as identified by decreased rFTD.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
