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| 1 | MoS_(2) reinforced PEEK composite for improved aqueous boundary lubrication显示文摘Polyether-etherketone(PEEK)is a corrosion-resistant material that has been widely used in aqueous lubrication.However,its anti-wear performance must be improved for its application in the industry.In this study,to improve the anti-wear performance of PEEK for aqueous boundary lubrication,PEEK/MoS_(2)composites were prepared by ball-milling and spark plasma sintering processes.A competitive MoS_(2)mechanism between the low shear strength property and the role of promoting wear debris generation influences the anti-wear performance of PEEK/MoS_(2)composites.Experiments demonstrated that the coefficients of friction(COF)and wear rate of PEEK composite with 0.25 wt%MoS_(2)were significantly reduced 68%and 94%,respectively.Furthermore,this was the first time that a PEEK composite could achieve a COF of less than 0.05 in aqueous boundary lubrication.Its anti-wear performance was verified to be better than that of PEEK/carbon fiber(CF)and Thordon composites.The PEEK/MoS_(2)composite may be a potential material for underwater equipment because of its outstanding anti-wear performance in aqueous boundary lubrication. | Xin HOU Pengpeng BAI Jingyang LI Yuanzhe LI Hui CAO Xiangli WEN Yonggang MENG Liran MA Yu TIAN | 2023 | Friction2023，11，9： | 2 |
| 2 | Performance improvement of n-i-p μc-Si:H solar cells by gradient hydrogen dilution technique显示文摘High pressure radio frequency plasma enhanced chemical vapor deposition(RF-PECVD)process was adopted to investigate the effect of constant hydrogen dilution technique and gradient hydrogen dilu-tion technique on the structural evolution of intrinsic films and the performance of n-i-p microcrystal-line silicon solar cells.The experiment results demonstrated that the grain size and crystalline volume fraction along the growth direction of intrinsic films can be controlled and the performance of solar cells can be greatly improved by gradient hydrogen dilution technique.An initial active-area efficiency of 5.7%(Voc=0.47V,Jsc=20.2mA/cm2,FF=60%)for the μc-Si:H single-junction n-i-p solar cells and an initial active-area efficiency of 10.12%(Voc=1.2V,Jsc=12.05mA/cm2,FF=70%)for the a-Si:H/μc-Si:H tandem n-i-p solar cells has been achieved. | YUAN YuJie HOU GuoFu ZHANG JianJun XUE JunMing CAO LiRan ZHAO Ying GENG XinHua | 2009 | Science China(Technological Sciences)2009，52，6： | 1 |
| 3 | Single cell RNA and immune repertoire prowling of COVID-19 patients reveal novel neutralizing antibody显示文摘There is no doubt that COVID-19 outbreak is currently the biggest public health threat,which has caused catastrophic con sequences in many countries and regions.As host immunity is key to fighting against virus infection,it is important to characterize the immunologic changes in the COVID-19 patients,and to explore potential therapeutic candidates.The most efficient ways to end this pandemic are to vaccinate the susceptible population,and to use specific drugs,such as monoclonal antibodies against the viral spike protein(S protein),to treat the affected individuals.Several promising neutralizing antibodies have recently been reported(Cao et al.,2020;Lv et al.,2020). | Fang Li Meng Luo Wenyang Zhou Jinliang Li Xiyun Jin Zhaochun Xu Liran Juan Zheng Zhang Yuou Li Renqiang Liu Yiqun Li Chang Xu Kexin Ma Huimin Cao Jingwei Wang Pingping Wang Zhigao Bu Qinghua Jiang | 2021 | Protein & Cell2021，12，10： | 0 |
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