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| 1 | A convolution algorithm to calculate differential cross sections of the Ring effect in the Earth's atmosphere based on rotational Raman scattering显示文摘The Ring effect refers to the filling in of Fraunhofer lines, which is mainly attributed to the rotational Raman scattering of solar spectra by N2 and O2 molecules in the atmosphere. The Ring effect is one of the most significant factors affecting the accuracy of retrieving concentrations of atmospheric trace gases, such as NO2 and SO2, from satellite observations through differential optical absorption spectroscopy. First in this study, the solar spectrum measured by the Ozone Monitoring Instrument onboard NASA Aura is convolved with the rotational Raman cross section of the atmosphere, which is calculated from the rotational Raman cross sections of N2 and O2 molecules, and divided by the original solar spectrum. The slowly varying term is removed by fitting it with a cubic polynomial to obtain the differential Ring spectrum. The results agree well with the calculations using a radiative transfer model (R2=0.9663). Second, the differential Ring spectrum is computed using two fixed wavelengths of 410 nm and 488 nm, and the resulting differential Ring spectra are similar to that calculated with varying wavelengths and agree well with the calculation using the radiative transfer model (R2=0.9624 and 0.9639 respectively). The computation time using the fixed wavelength is about 0.128% of that using a varying wavelength. Finally, we found that the frequency spectrum of the Raman cross sections for the atmosphere, N2 molecules and O2 molecules are similar; thus, the Raman cross section of N2 or O2 molecules can be used to compute the approximate Ring effect for simplicity. | HAN Dong CHEN LiangFu SU Lin TAO JinHua LI ShenShen YU Chao ZHANG Ying HE BaoHua | 2011 | Science China Earth Sciences2011，54，9： | 4 |
| 2 | A randomized algorithm for detecting multiple ellipses based on least square approach 显示文摘 | Li Liangfu Feng Zuren He Kailiang | 2005 | Opto-Electronics Review2005，13，1： | 1 |
| 3 | Modulating the metal/organic interface via Cu TCNQ decorated layer toward high performance bottom-contact single-crystal transistors显示文摘The organic single-crystal field-effect transistors using anthracene derivative, H-Ant as an active layer with source/drain electrodes decorated by metal charge transfer salt(Cu TCNQ) were fabricated. We demonstrated that this bottom-contact structure displayed an obvious improvement in the electrical characteristics relative to their pristine copper and top-contact gold electrode counterparts. This observation could be ascribed to the lower contact resistance resulting from the energetic match between electrodes and semiconductor. | Liangfu He Deyang Ji Erjing Wang Yonggang Zhen Huanli Dong Wenping Hu | 2015 | Science China Chemistry2015，58，6： | 0 |
| 4 | Safety and efficacy of the SeparGateTM balloon-guiding catheter in neurointerventional surgery:A prospective,multicenter,single-arm clinical trial显示文摘Objective:To evaluate the safety and efficacy of the SeparGateballoon-guiding catheter(BGC)for blocking flow and delivering devices in neurointerventional surgery.Method:This prospective multicenter single-arm trial enrolled patients who received BGC adjuvant therapy to provide temporary blood flow arrest of the supra-aortic arch arteries and their branch vessels in interventional therapy.The primary endpoint was immediate procedural success rate in flow arrest,device delivery,and withdrawal.The efficacy endpoints were intraoperative product performance,including rigidity,smoothness,fracture resistance of the catheter wall,catheter push performance,compatibility and radiopaque display,integrity,adhesion thrombus after withdrawal and balloon rupture.The safety endpoints were adverse and serious adverse events associated with the test device and serious adverse events resulting in death or serious health deterioration.Result:A total of 129 patients were included;of them,128 were analyzed in the full analysis set(FAS)and per protocol set(PPS).Immediate procedural success was achieved in 97.7%of patients with FAS and PPS.The lower bound of the 95%confidence interval was 94.6%,higher than the preset efficacy margin of 94%.Device-related adverse events occurred in 2(1.6%)cases.One was mild adverse event of vasospasm,which resolved spontaneously.The other was serious adverse event of dissection aggravation,which was treated with stenting angioplasty.No device defects were observed.Conclusion:In neurointerventional surgery,the SeparGateBGC can be used to temporarily block the flow of the supra-aortic arch arteries and their branch vessels and guide the interventional device to the target vascular position. | Huan Liu Rufeng Jia Yanyan He Tengfei Zhou Liangfu Zhu Yonghong Ding Juha Antero Hernesniemi Tianxiao Li Yingkun He | 2022 | Journal of Interventional Medicine2022，5，3： | 0 |
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