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您的检索式：作者名="QI Shangxue"
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| 1 | Phase spectrum estimation of the seismic wavelet based on a criterion function显示文摘Phase spectrum estimation of the seismic wavelet is an important issue in high-resolution seismic data processing and interpretation. On the basis of two patterns of constant-phase rotation and root transform for wavelet phase spectrum variation, we introduce six sparse criteria, including Lu's improved kurtosis criterion, the parsimony criterion, exponential transform criterion, Sech criterion, Cauchy criterion, and the modified Cauchy criterion, to phase spectrum estimation of the seismic wavelet, obtaining an equivalent effect to the kurtosis criterion. Through numerical experiments, we find that when the reflectivity is not a sparse sequence, the estimated phase spectrum of the seismic wavelet based on the criterion function will deviate from the true value. In order to eliminate the influence of non-sparse reflectivity series in a single trace, we apply the method to the multi-trace seismogram, improving the accuracy of seismic wavelet phase spectrum estimation. | Yu Yongcai Wang Shangxu Yuan Sanyi Qi Pengfei | 2012 | Petroleum Science2012，9，2： | 4 |
| 2 | Atomically bonding Na anodes with metallized ceramic electrolytes by ultrasound welding for high-energy/power solid-state sodium metal batteries显示文摘A solid-state sodium metal battery has cut a striking figure in next-generation large-scale energy storage technology on account of high safety,high energy density,and low cost.Nevertheless,the large interfacial resistance and sodium dendrite growth originating from the poor interface contact seriously hinder its practical application.Herein,a modified ultrasound welding was proposed to atomically bond Na anodes and Au-metalized Na_(3)Zr_(2)Si_(2)PO_(12) electrolytes associated with the in situ formation of Na–Au alloy interlayers.Thereupon,intimate Na_(3)Zr_(2)Si_(2)PO_(12)-Au/Na interfaces with a low interfacial resistance(~23Ωcm^(2))and a strong dendrite inhibition ability were constructed.The optimized Na symmetric battery can cycle steadily for more than 900 h at 0.3 mA cm^(-2) under a low overpotential(<50 mV)of Na electroplating/stripping and deliver a high critical current density of 0.8 mAcm^(-2) at room temperature.By incorporating the above interface into the solid-state Na metal battery,taking three-dimensional Na_(3)V_(2)(PO_(4))_(3) as the cathode,the full battery offers a high energy density of 291 Wh kg^(-1) at a high power density of 1860Wkg^(-1).A pouch-type solid-state sodium metal full battery based on a ceramic electrolyte was assembled for the first time,and it lit a 3 V LED lamp.Such a strategy of the ultrasound welding metalized solid-state electrolyte/Na interface by engineering the Na-Au interlayer would pave a new pathway to engineer a low-resistance and highly stable interface for high-energy/density solid-state sodium metal batteries. | Dongchen Li Xinxin Wang Qi Guo Xiaole Yu Shangxu Cen Huirong Ma Jingjing Chen Dajian Wang Zhiyong Mao Chenlong Dong | 2023 | Carbon Energy2023，5，2： | 1 |
| 3 | PHOTOEMISSION STUDIES OF Pd/D SYSTEM WITH HIGH DEUTERIUM CONTENT显示文摘The ultraviolet photoelectron spectroscopy(UPS)spectra of Pd/D system(including absorption at high pressure)with various D contents were measured.The D absorption induced a new peak centered at about 6eV below Ef,which seems to derive from the hybridized states of deuterium and Pd electronic states.Its intensity increases with D content;only part of the D atoms in the Pd lattice are ionized at high D content. | LIU Zhenxiang XIE Kan QI Shangxue CAO Jianming LI Nan YU Xingnan LIN Zhangda | 1990 | Chinese Physics Letters1990，7，3： | 0 |
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