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9篇 您的检索式:作者名="LONG Mingliang"
    题名 作者 年代 出处 被引量
1北斗导航系统卫星激光测距综述显示文摘Satellite laser ranging(SLR)is an unambiguous measurement technique and generates high accuracy satellite orbit data.All satellites in the BeiDou navigation satellite system(BDS)carried laser retro-reflector arrays(LRAs),so they can be tracked by ground SLR stations in order to provide the accurate observation data.The Shanghai astronomical observatory(SHAO)designed the LRAs,and also developed the dedicated SLR systems using a 1 m-aperture telescope and a transportable cabin-based SLR system with a telescopes of 60 cm aperture.These enable BDS satellite ranging during daytime and nighttime with centimeter-level precision,allowing highly accurate estimations of satellite orbits.Moreover,some of the BDS satellites are also equipped with laser time transfer(LTT)payloads,which were developed by the SHAO and China Academy of Space Technology(CAST),providing a highly accurate time comparison between the satellites and ground clocks.This paper describes the dedicated SLR system and the design of the LRAs for BDS satellites,as well as global SLR measurements.The SLR tracking data is used for evaluating the orbit accuracy of BDS satellites and broadcast ephemeris,with an accuracy of less than 1 m.The LTT measurements to BDS satellites for a single shot have a precision of approximately 300 picoseconds,with a time stability of 20 picoseconds in 500 s.ZHANG Haifeng LONG Mingliang YANG Huafeng MENG Wendong CHENG Zhi’en DENG Huarong ZHANG Zhongping ZHANG A’li 2020Aerospace China2020,21,4:4
2Large scale preparation of 20 cm×20 cm graphene modified carbon felt for high performance vanadium redox flow battery显示文摘Vanadium redox flow batteries(VRFBs)are widely applied in energy storage systems(e.g.,wind energy,solar energy),while the poor activity of commonly used carbon-based electrode limits their large-scale application.In this study,the graphene modified carbon felt(G/CF)with a large area of 20 cm×20 cm has been successfully prepared by a chemical vapor deposition(CVD)strategy,achieving outstanding electrocatalytic redox reversibility of the VRFBs.The decorating graphene can provide abundant active sites for the vanadium redox reactions.Compared with the pristine carbon felt(CF)electrode,the G/CF composite electrode possesses more defective sites on surface,which enhances activity toward VO^(2+)/VO^(2+)couple and electrochemical performances.For instance,such G/CF electrode delivered remarkable voltage efficiency(VE)of 88.4%and energy efficiency(EE)of 86.4%at 100 mA·cm^(-2),much higher than CF electrode by 2.1%and 3.78%,respectively.The long-term cycling stability of G/CF electrode was further investigated and a high retention value of 47.6%can be achieved over 600 cycles.It is demonstrated that this work develops a promising and effective strategy to synthesize the large size of carbon electrode with high performances for the next-generation VRFBs.Ting Long Yong Long Mei Ding Zhizhao Xu Jian Xu Yiqiong Zhang Mingliang Bai Qijun Sun Gen Chen Chuankun Jia 2021Nano Research2021,14,10:3
3Encapsulation of lyophilized platelet-rich fibrin in alginate-hyaluronic acid hydrogel as a novel vascularized substitution for myocardial infarction显示文摘Cardiovascular diseases such as myocardial infarction(MI)are among the major causes of death worldwide.Although intramyocardial injection of hydrogels can effectively enhance the ventricular wall,this approach is limited because of its restriction to the poor vascularization in the infarcted myocardium.Here,we reported a new type of hydrogel composed of alginate(ALG)and hyaluronic acid(HA)with lyophilized platelet-rich fibrin(Ly-PRF)for releasing abundant growth factors to realize their respective functions.The results of in vitro studies demonstrated favorable mechanical property and release ability of ALG-HA with Ly-PRF.When injected into the infarcted myocardium,this composite hydrogel preserved heart function and the Ly-PRF within the hydrogel promoted angiogenesis and increased vascular density in both infarcted and border zone,which rescued the ischemic myocardium.These beneficial effects were also accompanied by macrophage polarization and regulation of myocardial fibrosis.Moreover,the autologous origin of Ly-PRF with ALG-HA hydrogel offers myriad advantages including safety profile,easiness to obtain and cost-effectiveness.Overall,this study demonstrated the versatile therapeutic effects of a novel composite hydrogel ALG-HA with Ly-PRF,which optimizes a promising vascularized substitution strategy for improving cardiac function after MI.Bei Qian Qi Yang Mingliang Wang Shixing Huang Chenyu Jiang Hongpeng Shi Qiang Long Mi Zhou Qiang Zhao Xiaofeng Ye 2022Bioactive Materials2022,7,1:2
4Delphinidin‐3‐glucoside protects human umbilical vein endothelial cells against oxidized low‐density lipoprotein‐induced injury by autophagy upregulation via the AMPK/SIRT1 signaling pathway显示文摘Xin Jin Mingliang Chen Long Yi Hui Chang Ting Zhang Li Wang Wanqiang Ma Xiaoli Peng Yong Zhou Mantian Mi 2014Food Res2014,,10:2
5Low-bandgap conjugated polymers based on benzodipyrrolidone with reliable unipolar electron mobility exceeding 1 cm^(2) V^(-1)s^(-1)显示文摘The employment of an intrinsic quinoidal building block,benzodipyrrolidone(BDP),on constructing conjugated polymers(PBDP-2F and PBDP-2CN)with high electron mobility and unipolar transport characteristic in polyethylenimine ethoxylated(PEIE)modified organic field-effect transistors(OFETs)is reported.The intrinsic quinoidal characteristic and excellent coplanarity of BDP can lower the lowest unoccupied molecular orbital(LUMO)levels and improve ordered interchain packing of the resulting polymers in solid states,which are favorable for electron-injection and transport.By using PEIE as the interlayer to block the hole injection,unipolar n-type transport characteristics with high electron mobility of 0.58 and 1.01 cm^(2) V^(-1)s^(-1)were achieved by the OFETs based on PBDP-2F and PBDP-2CN,respectively.More importantly,the extracted mobilities are highly reliable with the reliability factor of above 80%.To the best of our knowledge,PBDP-2CN is the very first quinoid-based conjugated polymer with reliable electron mobility exceeding 1 cm^(2) V^(-1)s^(-1).This work represents a significant step in exploring intrinsic quinoidal CPs for application in n-channel OFETs and logic complementary circuits.Mingqun Yang Tian Du Xuxia Zhao Xuelong Huang Langheng Pan Shuting Pang Haoran Tang Zhongxiang Peng Long Ye Yunfeng Deng Mingliang Sun Chunhui Duan Fei Huang Yong Cao 2021Science China Chemistry2021,64,7:1
6The progress of laser ranging technology at Shanghai Astronomical Observatory显示文摘As an important station of International Laser Ranging Service(ILRS),Shanghai Astronomical Observatory(SHAO)has upgraded Satellite Laser Ranging(SLR)system with high repetition rate and achieved some technological progress,There are a lot of improvements for overall system performance,such as annual observation passes,measurement precision and quality of observation data.SLR technology with repetition rate of 10 kHz is accomplished firstly in China,and space debris laser ranging technology with200 Hz laser is promoted and proved to be more detective for weak echo,which lead to successful measurement for 40,000 km satellites and space debris within 3000 km.At the same time,SLR based on multi-telescopes and 1064 nm wavelength are planned to make a breakthrough of detection capabilities,and also to expand its application fields.These progresses will be introduced in this paper in detail.Zhibo Wu Haifeng Zhang Huarong Deng Mingliang Long Zhien Cheng Zhongping Zhang Wendong Meng 2019Geodesy and Geodynamics2019,10,6:1
7应激诱导的外周CD4^+T细胞代谢紊乱引发动物焦虑样行为显示文摘文章简介免疫系统为生物抵抗病原体的感染,神经系统通过神经细胞的连接构成意识的物质基础。在本文中,研究团队探索了从外界压力到动物进入焦虑状态的一系列生理过程,证实CD4^+T淋巴细胞在焦虑的产生中具有不可或缺的重要作用,促进了对免疫系统和神经系统间的相互作用的理解。Ke-qi Fan Yi-yuan Li Hao-li Wang Xin-tao Mao Jin-xin Guo Fei Wang Ling-jie Huang Yi-ning Li Xiang-yu Ma Zheng-jun Gao Wei Chen Dan-dan Qian Wen-jin Xue Qian Cao Lei Zhang Li Shen Long Zhang Chao Tong Jiang-yan Zhong Wei Lu Ling Lu Ke-ming Ren Guisheng Zhong Yuan Wang Mingliang Tang Xin-Hua Feng 柴人杰 靳津 2020科学新闻2020,,2:0
8Palladium-catalyzed 2-pyridylmethyl-directed β-C(sp^3)—H activation and cyclization of aliphatic amides with gem-dibromoolefins:A rapid access to γ-lactams显示文摘The direct Pd-catalyzed β-C(sp^3) —H activation and cyclization of aliphatic amides bearing a removable2-pyridylmethyl directing group with gem-dibromoolefins is described for the first time to construct a variety of y-lactams. The resulting products with Z-and E-configurations can be easily separated and purified after the reaction, demonstrating the effectiveness and applicability of the method herein developed.Danni Zhou Chunxia Wang Mingliang Li Zheng Long Jingbo Lan 2018Chinese Chemical Letters2018,29,1:0
9Design and analysis of the Macao Science Satellite-1's laser retro-reflector array显示文摘The origin and spatial-temporal variation of the Earth’s magnetic field(EMF)is one of the important scientific problems that has long been unsolved.The Macao Science Satellite-1(MSS-1)under construction is China’s first high-precision EMF measurement satellite.To satisfy the highly precise requirements of the MSS-1 orbit measurement,a light,high-precision,four-prism laser retroreflector array was designed.It weighs approximately 285 g,its effective reflection area is greater than 1.77 cm^(2),and its size is 100×100×41 mm.The laser retro-reflector array has excellent performance,and it can achieve a ranging precision at the subcentimeter level for satellite laser ranging.It will be developed and installed on the MSS-1 as a power-free load for high-precision orbit measurement and accurate orbit calibration.The MSS-1 is planned to be brought into the International Laser Ranging Service observations.More than 31satellite laser ranging stations in the International Laser Ranging Service around the world will be able to measure the MSS-1 with long arcs,which will support the scientific mission of high-precision EMF exploration.ZhiEn Cheng Kai Tang ZhongPing Zhang HaiFeng Zhang Pu Li MingLiang Long 2023Earth and Planetary Physics2023,7,1:0
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