|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | The 1 PW/0.1 Hz laser beamline in SULF facility显示文摘In this paper,we report the recent progress on the 1 PW/0.1 Hz laser beamline of Shanghai Superintense Ultrafast Laser Facility(SULF).The SULF-1 PW laser beamline is based on the double chirped pulse amplification(CPA)scheme,which can generate laser pulses of 50.8 J at 0.1 Hz after the final amplifier;the shot-to-shot energy fluctuation of the amplified pulse is as low as 1.2%(std).After compression,the pulse duration of 29.6 fs is achieved,which can support a maximal peak power of 1 PW.The contrast ratio at-80 ps before main pulse is measured to be 2.5×10^-11.The focused peak intensity is improved by optimizing the angular dispersion in the grating compressor.The maximal focused peak intensity can reach 2.7×10^19W/cm2 even with an f/26.5 off-axis parabolic mirror.The horizontal and vertical angular pointing fluctuations in 1 h are measured to be 1.89 and 2.45μrad,respectively.The moderate repetition rate and the good stability are desirable characteristics for lasermatter interactions.The SULF-1 PW laser beamline is now in the phase of commissioning,and preliminary experiments of particle acceleration and secondary radiation under 300–400 TW/0.1 Hz laser condition have been implemented.The progress on the experiments and the daily stable operation of the laser demonstrate the availability of the SULF-1 PW beamline. | Zongxin Zhang Fenxiang Wu Jiabing Hu Xiaojun Yang Jiayan Gui Penghua Ji Xingyan Liu Cheng Wang Yanqi Liu Xiaoming Lu Yi Xu Yuxin Leng Ruxin Li Zhizhan Xu | 2020 | High Power Laser Science and Engineering2020，8，1： | 2 |
| 2 | Alkali deweighting of acid-modified multicomponent copolyester fiber 显示文摘 | YANG Ruxin | 2003 | Indian Journal of Fiber & Textile Research2003，28，9： | 1 |
| 3 | Polyoxometalate-Induced Efficient Recycling of Waste Polyester Plastics into Metal–Organic Frameworks显示文摘Polyester plastics such as poly(ethylene terephthal-ate)(PET)are utilized commonly in everyday life,yet only a small portion of these plastics are recycled,and typically,the recycling procedures face energy or pollution problems. | Yong-Jun Chen Xianqiang Huang Yifa Chen Yi-Rong Wang Haichao Zhang Chun-Xia Li Lei Zhang Hongjing Zhu Ruxin Yang Yu-He Kan Shun-Li Li Ya-Qian Lan | 2019 | CCS Chemistry2019，1，5： | 1 |
| 4 | Measurement of electron beam transverse slice emittance using a focused beamline显示文摘A single-shot measurement of electron emittance was experimentally accomplished using a focused transfer line with a dipole.The betatron phase of electrons based on laser wakefield acceleration(LWFA)is energy dependent owing to the coupling of the longitudinal acceleration field and the transverse focusing(defocusing)field in the bubble.The phase space presents slice information after phase compensation relative to the center energy.Fitting the transverse size of the electron beam at different energy slices in the energy spectrum measured 0.27 mm mrad in the experiment.The diagnosis of slice emittance facilitates local electron quality manipulation,which is important for the development of LWFA-based free electron lasers.The quasi-3D particle-in-cell simulations matched the experimental results and analysis well. | Kangnan Jiang Ke Feng Hao Wang Xiaojun Yang Peile Bai Yi Xu Yuxin Leng Wentao Wang Ruxin Li | 2023 | High Power Laser Science and Engineering2023，11，3： | 0 |
| 5 | Generating a tunable narrow electron beam comb via laser-driven plasma grating显示文摘We propose a novel approach for generating a high-density,spatially periodic narrow electron beam comb(EBC)from a plasma grating induced by the interference of two intense laser pulses in subcritical-density plasma.We employ particle-in-cell(PIC)simulations to investigate the effects of cross-propagating laser pulses with specific angles overlapping in a subcritical plasma.This overlap results in the formation of a transverse standing wave,leading to a spatially periodic high-density modulation known as a plasma grating.The electron density peak within the grating can reach several times the background plasma density.The charge imbalance between electrons and ions in the electron density peaks causes mutual repulsion among the electrons,resulting in Coulomb expansion and acceleration of the electrons.As a result,some electrons expand into vacuum,forming a periodic narrow EBC with an individual beam width in the nanoscale range.To further explore the formation of the nanoscale EBC,we conduct additional PIC simulations to study the dependence on various laser parameters.Overall,our proposed method offers a promising and controlled approach to generate tunable narrow EBCs with high density. | Hetian Yang Jingwei Wang Shixia Luan Ke Feng Wentao Wang Ruxin Li | 2023 | Matter and Radiation at Extremes2023，8，6： | 0 |
| 6 | Cytokine receptor-like factor 1(CRLF1)promotes cardiac fibrosis via ERK1/2 signaling pathway显示文摘Cardiac fibrosis is a cause of morbidity and mortality in people with heart disease.Anti-fibrosis treatment is a significant therapy for heart disease,but there is still no thorough understanding of fibrotic mechanisms.This study was carried out to ascertain the functions of cytokine receptor-like factor 1(CRLF1)in cardiac fibrosis and clarify its regulatory mechanisms.We found that CRLF1 was expressed predominantly in cardiac fibroblasts.Its expression was up-regulated not only in a mouse heart fibrotic model induced by myocardial infarction,but also in mouse and human cardiac fibroblasts provoked by transforming growth factor-β1(TGF-β1).Gain-and loss-of-function experiments of CRLF1 were carried out in neonatal mice cardiac fibroblasts(NMCFs)with or without TGF-β1 stimulation.CRLF1 overexpression increased cell viability,collagen production,cell proliferation capacity,and myofibroblast transformation of NMCFs with or without TGF-β1 stimulation,while silencing of CRLF1 had the opposite effects.An inhibitor of the extracellular signal-regulated kinase 1/2(ERK1/2)signaling pathway and different inhibitors of TGF-β1 signaling cascades,comprising mothers against decapentaplegic homolog(SMAD)-dependent and SMAD-independent pathways,were applied to investigate the mechanisms involved.CRLF1 exerted its functions by activating the ERK1/2 signaling pathway.Furthermore,the SMAD-dependent pathway,not the SMAD-independent pathway,was responsible for CRLF1 up-regulation in NMCFs treated with TGF-β1.In summary,activation of the TGF-β1/SMAD signaling pathway in cardiac fibrosis increased CRLF1 expression.CRLF1 then aggravated cardiac fibrosis by activating the ERK1/2 signaling pathway.CRLF1 could become a novel potential target for intervention and remedy of cardiac fibrosis. | Shenjian LUO Zhi YANG Ruxin CHEN Danming YOU Fei TENG Youwen YUAN Wenhui LIU Jin LI Huijie ZHANG | 2023 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2023，24，8： | 0 |
| 7 | In situ rapid versatile method for the preparation of zirconium metal-organic framework filters显示文摘The development of the rapid preparation of highly stable metal-organic framework(MOF)-based devices provides the possibility of meeting the increasing demands of MOF in industrial applications.However,MOFs experience poor processability and stable high-valence-metal(Ⅳ)-based MOFs favor forming either thermodynamically stable metal hydroxides or oxides during their growth and nucleation,which hinders their practical applications.Herein,we present a versatile deep eutectic solvent(DES)-assisted hot pressing method to in situ rapidly prepare six distinct zirconium-based MOF nanocrystals on fibers(denoted as Zr-MOFilters)within 20 min.A small amount of DES promotes MOF precursor contact and accelerates Zr-MOF growth.Temperature and pressure facilitate the formation of Zr-MOFs onto desired substrates.In situ1H nuclear magnetic resonance spectra and time-dependent Fourier-transform infrared spectra were conducted to elucidate the growth of Zr-MOF nanocrystals.As a proof-of-concept,the abilities of Zr-MOFilters for Cr_(2)O_(7)^(2−) and micro(nano)plastics removal have been demonstrated.This strategy paves the way for the rapid fabrication of highly stable MOF-based devices and brings MOFs a step closer to practical application. | Hang Wang Xingmao Zhang Ruxin Yao Shuang Zhao Pengfei Zhao Ruile Yang Lin Wang Yichao Huang Tong Wei Xiang Li Zhuangjun Fan Bo Wang | 2022 | Science China Chemistry2022，65，12： | 0 |
| 8 | STUDY ON THE PROPERTIES OF ACID-MODIFIED MULTIFUNCTION COPOLYESTER FIBRE显示文摘Applying conventional analytical methods,the following results have been found:the satura-tion value of acid--modified multifunction copolyest fibre( acid-modified polyester fibre)is1.74,then this kind of fibre is good for being dyed medium and light colours with cationicdyes;its level of erystalization is lower than of PET fibre;the third monomer(SIPM)con-tent in the fibre will be reduced by about 8% by the 'alkali treatment'in dyeing and finishingprocess:through measuring and analysing the dye-up-take curves of time and temperature ofdyeing the fibre with cationic dyes,we indicate the key factors in dyeing are the 100℃ dyeingtemperature and the time for heat preservation;moveover,adding sodium sulphate will help leveldyeing but lower the dye-uptake. | Yang Ruxin Dai Mengzhuo(Suzhou Institute of Silk Textile Technology, 14Xiangmen Road. Suzhou 215005) | 1995 | 苏州大学学报(工科版)1995，20，S3： | 0 |
| 9 | Achieving photocatalytic water oxidation on LaNbON2 under visible light irradiation显示文摘LaNbON_2 has narrow bandgap and wide visible-light absorption band, yet no photocatalytic water oxidation on LaNbON_2 has been reported. By a post-annealing treatment in Ar, anion vacancies were brought into LaNbON_2 as shown by EPR spectroscopy. These could act as donors in the semiconductor. And consequently the oxidative power of holes was enhanced as indicated by the difference between fermi level and valence band maximum(E_F-E_(VBM)) evaluated from valence band XPS. The annealed LaNbON_2 photocatalyst acquired water oxidation ability for the first time, which was improved by combining CoO_x as cocatalyst. Annealed LaNbON_2 derived from La_3NbO_7 had smaller particle size, higher concentration of anion vacancies, bigger E_F-E_(VBM) and better performance for photocatalytic oxygen evolution reaction than LaNbON_2 derived from LaNbO_4. | Lipeng Wan Feng-Qiang Xiong Bingxue Zhang Ruxin Che Yue Li Minghui Yang | 2018 | Journal of Energy Chemistry2018，27，2： | 0 |
| 10 | Dispersion management for a 100 PW level laser using a mismatched-grating compressor显示文摘We report dispersion management based on a mismatched-grating compressor for a 100 PW level laser,which utilizes optical parametric chirped pulse amplification and also features large chirped pulse duration and an ultra-broadband spectrum.The numerical calculation indicates that amplified pulses with 4 ns chirped pulse duration and 210 nm spectral bandwidth can be directly compressed to sub-13 fs,which is close to the Fourier-transform limit(FTL).More importantly,the tolerances of the mismatched-grating compressor to the misalignment of the stretcher,the error of the desired grating groove density and the variation of material dispersion are comprehensively analyzed,which is crucially important for its practical application.The results demonstrate that good tolerances and near-FTL compressed pulses can be achieved simultaneously,just by keeping a balance between the residual second-,third-and fourth-order dispersions in the laser system.This work can offer a meaningful guideline for the design and construction of 100 PW level lasers. | Fenxiang Wu Jiabing Hu Xingyan Liu Zongxin Zhang Peile Bai Xinliang Wang Yang Zhao Xiaojun Yang Yi Xu Cheng Wang Yuxin Leng Ruxin Li | 2022 | High Power Laser Science and Engineering2022，10，6： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员