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Finite-time adaptive cooperative guidance for multiple missiles

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Finite-time adaptive cooperative guidance for multiple missi...

第40届中国控制会议

作者： pengfei shi Jianglong Yu Ziyan Chen Xiwang Dong Zhang Ren School of Automation Science and Electrical Engineering Science and Technology on Aircraft Control Laboratory Beihang University Key Laboratory of Dependable Service Computing in Cyber Physical Society (Chongqing University) Ministry of Education of ChinaChongqing University

This paper studies the finite-time convergent cooperative guidance problem for multiple missiles to achieve the coordination of the flight time. The control variable is relaxed equivalently and an additional term utilizing the local state information is added such that the finite-time convergence being guaranteed. Furthermore, the time-varying coupling gains are introduced in the guidance law and an algorithm to depict the design process is proposed so that the cooperative guidance law for each follower missile is fully distributed. In addition, finite-time convergence of the guidance error is proved based on Lyapunov theory. Finally, a numerical example is displayed to validate the effectiveness of the proposed theoretical results.

关键词： Cooperative guidance finite-time convergence adaptive control

Optical Property and Antitumor Activity of a Heterometallic RuⅡ/PtⅡ-terpyridine Complexes

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Optical Property and Antitumor Activity of a Heterometallic ...

第十一届全国化学生物学学术会议

作者： Xinda Yang Pan Xiang Qin Jiang pengfei shi Xiaohe Tian Department of Chemistry Jiangsu Ocean University School of Life Science Anhui University

Platinum-terpyridine complexes have been receiving increased attention in bioinorganic and medicinal chemistry due to their propensity to bind biomolecules, often by selective modes. [1] RuII-polypyridine complexes exhibiting long-lived luminescent excited state are extensively investigated as light harvesting, luminescence sensor and DNA probes, etc. However, the [Ru（tpy）2]X2 is nonemissive due to the overlap of MLCT and MC excitation level. [2] Combining the Pt-tpy and Ru-tpy moieties into a single molecule will vest the assembly novel biological and optical property. Here we report a heterometallic RuII/PtII complex based on terpyridine derivatives. Compared with the Ru-tpy precursor, the Ru/Pt complex improved markedly in the emission intensity and the emission band significantly red-shifted. DFT calculation results indicate that there exists electron delocalization in the excited state of the heterometallic Ru/Pt complex. The Ru/Pt complex shows increased in vitro cytotoxicity than the Ru-tpy precursor, it can also sensitize the production of ROS upon irradiation with higher quantum yield. Confocal microscopy shows subcellular localization of the Ru/Pt complex in the lysosome.

关键词： Heterometallic Ru/Pt Complexes ROS Production Antitumor Confocal microscopy

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小净距地铁隧道爆破动力特性与破坏模式研究

施工技术 2013年第7期42卷 102-106页

作者：史鹏飞中铁十八局集团第一工程有限公司河北涿州072750

小净距地铁隧道爆破极易引起先行洞衬砌开裂、剥落现象,具有很大施工风险。以在建青岛地铁小净距隧道为例,建立三维有限元动力模型,研究先行洞衬砌振动速度、应力状态以及能量时程。后行洞爆破对先行洞衬砌迎爆侧边墙影响最大,最大振速... 详细信息

小净距地铁隧道爆破极易引起先行洞衬砌开裂、剥落现象,具有很大施工风险。以在建青岛地铁小净距隧道为例,建立三维有限元动力模型,研究先行洞衬砌振动速度、应力状态以及能量时程。后行洞爆破对先行洞衬砌迎爆侧边墙影响最大,最大振速达到15mm/s。振速峰值时刻均<5μs,可采用微差爆破控制地震波叠加效应,避免过大振动破坏。先行洞衬砌迎爆侧边墙衬砌混凝土主要呈振动破坏和剪切破坏;拱顶主要为横向拉伸破坏,易出现纵向拉伸裂纹,先行洞衬砌边墙能量密度远大于拱顶。在施工时,应确保迎爆侧边墙厚度和配筋率。

关键词：隧道工程爆破振速能量特性破坏模式

内涵式发展视域下大学生创新创业教育的探索与实践

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实验技术与管理 2016年第9期33卷 204-207页

作者：石朋飞无锡工艺职业技术学院学生工作处江苏无锡214206

大学生创新创业教育不仅是高校内涵式发展的重要组成部分,也是高校内涵式发展的重要任务。当前,在内涵式发展视域下开展大学生创新创业教育,高校应当通过树立创新创业教育理念,将创新创业教育融入专业教育,努力打造一直具有创新创业教... 详细信息

大学生创新创业教育不仅是高校内涵式发展的重要组成部分,也是高校内涵式发展的重要任务。当前,在内涵式发展视域下开展大学生创新创业教育,高校应当通过树立创新创业教育理念,将创新创业教育融入专业教育,努力打造一直具有创新创业教育素养的师资队伍,探索"政产学研用"互动的创新创业教育模式,从而不断提升大学生的创新创业能力。

关键词：内涵式发展创新创业教育政产学研用

Adsorption of β-Naphthalenesulfonic Acid/Sulfuric Acid from Their Solution by Weakly Basic Resin

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Chinese Journal of Chemical Engineering 2003年第1期11卷 38-41页

作者：李长海史鹏飞余政哲石宏仁 Departmentof Applied Chemistry Harbin Institute of Technology Harbin 150001 China Department of Chemical Engineering Department of Applied Chemistry Harbin Institute of Technology Department of Chemical Engineering Jilin Institute of Technology

Experiments for single and bisolute competitive adsorption were carried out to investigate the adsorption behavior of /3-naphthalenesulfonic acid (NSA) and sulfuric acid from their solution at 25C onto weakly basic resin D301R. Adsorption affinity of sulfuric acid on D301R was found to be much higher than that of NSA. The data of single-solute adsorption were fitted to the Langmuir model and the Preundlich adsorption model. The ideal adsorbed solution theory (IAST) coupled with the single-solute adsorption models were used to predict the bisolute competitive adsorption equilibria. The IAST coupled with the Langmuir and the Freundlich model for sulfuric acid and NSA, respectively, yields the favorable representation of the bisolute competitive adsorption behavior.

关键词： 3-naphthalenesulfonic acid adsorption weakly basic resin

Textured Perovskite/Silicon Tandem Solar Cells Achieving Over 30% Efficiency Promoted by 4-Fluorobenzylamine Hydroiodide

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Nano-Micro Letters 2024年第9期16卷 557-570页

作者： Jingjing Liu Biao shi Qiaojing Xu Yucheng Li Yuxiang Li pengfei Liu Zetong SunLi Xuejiao Wang Cong Sun Wei Han Diannan Li Sanlong Wang Dekun Zhang Guangwu Li Xiaona Du Ying Zhao Xiaodan Zhang Renewable Energy Conversion and Storage Center Solar Energy Conversion CenterInstitute of Photoelectronic Thin Film Devices and TechnologyNankai UniversityTianjin 300350People’s Republic of China Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin Tianjin 300350People’s Republic of China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192People’s Republic of China Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education Tianjin 300350People’s Republic of China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin 300072People’s Republic of China Center of Single‑Molecule Sciences Institute of Modern OpticsTianjin Key Laboratory of Micro‑Scale Optical Information Science and TechnologyCollege of Electronic Information and Optical EngineeringNankai University38 Tongyan RoadJinnan DistrictTianjin 300350People’s Republic of China Shenzhen Research Institute of Nankai University 16Th FloorYantian Science and Technology BuildingHaishan StreetYantian DistrictShenzhen 518083People’s Republic of China

Monolithic textured perovskite/silicon tandem solar cells(TSCs)are expected to achieve maximum light capture at the lowest cost,potentially exhibiting the best power conversion ***,it is challenging to fabricate high-quality perovskite films and preferred crystal orientation on commercially textured silicon substrates with micrometersize ***,we introduced a bulky organic molecule(4-fluorobenzylamine hydroiodide(F-PMAI))as a perovskite *** is found that F-PMAI can retard the crystallization process of perovskite film through hydrogen bond interaction between F^(−)and FA^(+)and reduce(111)facet surface energy due to enhanced adsorption energy of F-PMAI on the(111)***,the bulky molecular is extruded to the bottom and top of perovskite film after crystal growth,which can passivate interface defects through strong interaction between F-PMA+and undercoordinated Pb^(2+)/I^(−).As a result,the additive facilitates the formation of large perovskite grains and(111)preferred orientation with a reduced trap-state density,thereby promoting charge carrier transportation,and enhancing device performance and *** perovskite/silicon TSCs achieved a champion efficiency of 30.05%based on a silicon thin film tunneling *** addition,the devices exhibit excellent longterm thermal and light stability without *** work provides an effective strategy for achieving efficient and stable TSCs.

关键词： Perovskite crystallization (111)preferred orientation Defect passivation Perovskite/silicon tandem solar cells

From Two-Told Interpenetration to Non-lnterpenetration:Structures and Magnetic Properties of Two Dy-Cu Metal-Organic Frameworks

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From Two-Told Interpenetration to Non-lnterpenetration:Struc...

第六届全国物理无机化学会议

作者： pengfei shi,Junjie Wang,Bin Zhao~* Department of Chemistry,Nankai University,Tianjin,300071

Recently,single molecule magnets(SMM) are of great interest due to their potential benefits of high-density data storage,classical and quantum *** fruits have been seen in compounds based on Dy or Dy-M(M = Fe,Co,Ni,Cu... 详细信息

关键词： metal-organic framework interpenetration slow magnetic relaxation behavior

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工业器件上的字符提取及识别

计算机工程 2005年第9期31卷 41-42,131页

作者：梁志贞施鹏飞周煦潼上海交通大学图像处理与模式识别研究所上海200030 上海住金控制有限公司上海200030

介绍了一个工业器件上字符识别和获取系统。在字符提取阶段,给出了两种字符的提取方法以及互补Ostu二值化方法。在识别阶段,对第一类字符利用TM矩和仿射不变矩提取特征并且组合成特征向量,然后利用交叉相关来识别;对第二类字符利用模板... 详细信息

介绍了一个工业器件上字符识别和获取系统。在字符提取阶段,给出了两种字符的提取方法以及互补Ostu二值化方法。在识别阶段,对第一类字符利用TM矩和仿射不变矩提取特征并且组合成特征向量,然后利用交叉相关来识别;对第二类字符利用模板匹配法,基于Hu不变矩和TM矩的交叉相关分别得到各自的识别结果,然后采用投票原则来作出最后的判决。实验结果表明提出的方案是可行的和合理的。

关键词：字符提取字符识别矩投票原则

Mitochondria Targeting Ability and Photocytotoxicity of a Twophoton Emissive MnⅡ-terpyridine Complex

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Mitochondria Targeting Ability and Photocytotoxicity of a Tw...

第十一届全国化学生物学学术会议

作者： Xinda Yang Duoteng Zhang Pan Xiang pengfei shi Lin Li Xiaohe Tian Department of Chemistry Jiangsu Ocean University

Photosensitizers are essential in the field of photodynamic therapy（PDT） for cancer. Transition-metal complexes are widely explored as photosensitizers due to their high photostability, large stokes shifts, impressive 1 O2 quantum yield, good biocompatibility, abundant modification potentials and better cell permeability.[1] Here we report a water-soluble manganeseII complex of TPYOH, a TPA active chromophore that is designed to introduce hydrogen bonding interactions with biological targets through two 2-hydroxyethyl groups. [2] The complex Mn（TPYOH）2 shows significant one-photon excited fluorescence in DMSO solution with quantum yield Φ=0.3972. The complex also exhibits remarkable two-photon emission under 740 nm femtosecond laser with T PA cross-section value of 123.6 GM. Mn（TPYOH）2 can sensitize the production of ROS upon irradiation with Φ（1 O2）= 0.045. Distinct photocytotoxicity of the MnII complex against A549 cell lines can be observed in 10 min. Living-cell confocal microscopy showed subcellular localization of the complex in the mitochondria during the initial 5 min costaining period, then some of the Mn（TPYOH）2 were found to locate into lysosome in 10 min. Almost all the Mn（TPYOH）2 were found to locate into lysosome completely after 15 min, with serious cell apoptosis was observed.

关键词： manganese-terpyridine two-photon photodynamic therapy mitochondria