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系统工程与电子技术:英文版 2023年第5期34卷 1252-1266页

作者： PAN Li WU Zhonghong YU Minggang liu jintao MEI Dan Weaponry Engineering College Naval University of EngineeringWuhan 430000China Electronics Engineering College Naval University of EngineeringWuhan 430000China Coastal Defense College Naval Aeronautical UniversityYantai 264001China Qingdao Campus Naval Aeronautical UniversityQingdao 266000China

The key advantage of unmanned swarm operation is its autonomous cooperation. How to improve the proportion of cooperators is one of the key issues of autonomous collaboration in unmanned swarm operations. This work proposes a strategy dominance mechanism of autonomous collaboration in unmanned swarm within the framework of public goods game. It starts with the requirement analysis of autonomous collaboration in unmanned swarm;and an aspiration-driven multiplayer evolutionary game model is established based on the requirement. Then the average abundance function and strategy dominance condition of the model are constructed by theoretical derivation. Furthermore, the evolutionary mechanism of parameter adjustment in swarm cooperation is revealed via simulation,and the influences of the multiplication factor r, aspiration levelα, threshold m and other parameters on the strategy dominance conditions were simulated for both linear and threshold public goods games(PGGs) to determine the strategy dominance characteristics;Finally, deliberate proposals are suggested to provide a meaningful exploration in the actual control of unmanned swarm cooperation.

关键词： unmanned combat swarm autonomous collabora-tion strategy dominance multi-player public goods game(PGG)

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土壤厚度演化模型理论方法研究进展

土壤学报 2024年第2期61卷 319-330页

作者：刘金涛赵薇刘彧河海大学水灾害防御全国重点实验室南京210098 河海大学水文水资源学院南京210098 中国科学院地球化学研究所环境地球化学国家重点实验室贵阳550081

全球平均土壤厚度仅约为1 m,但土壤厚度的空间分布信息在地貌、生态及水文科学等领域的研究和实践中具有重要价值。由于其具有显著的空间异质性,基于现有土壤制图产品、地球物理勘测及经验统计模型难以获取流域尺度土壤厚度分布信息,亟... 详细信息

全球平均土壤厚度仅约为1 m,但土壤厚度的空间分布信息在地貌、生态及水文科学等领域的研究和实践中具有重要价值。由于其具有显著的空间异质性,基于现有土壤制图产品、地球物理勘测及经验统计模型难以获取流域尺度土壤厚度分布信息,亟待发展土壤厚度预测的过程机理模型。本文回顾了土壤厚度演化模型理论方法的研究进展,评价了不同土壤生成及输移模型的适用性。研究指出土壤化学风化成土等机理仍不清晰是制约模型发展的理论瓶颈。此外,模型的方法体系仍需完善,亟待进一步发展描述土壤生成和输移的函数形式及其参数的估计方法等,指出物理与随机结合的模拟方法以及基于数学物理途径的参数确定方法等有望解决模型应用中遇到的难题。最后,在土壤厚度演化模型基础上,提出发展基于流域协同演化理论的土壤发生学模型是定量预测土壤理化全要素发生所亟需突破的难点之一。

关键词：土壤厚度土壤厚度演化模型土壤生成土壤输移流域协同演化

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金融强国背景下绿色金融理念新解

东南学术 2024年第3期 63-73,247页

作者：王文刘锦涛中国人民大学重阳金融研究院中国人民大学丝路学院

在建设金融强国进程中,绿色金融将成为构建高质量现代金融体系的重要基础。金融强国的提出给传统金融的发展带来了挑战,同时也驱动了传统金融的创新升级。从绿色金融的演化路径来看,绿色金融在底层逻辑上与传统金融存在分歧与融合,既是... 详细信息

在建设金融强国进程中,绿色金融将成为构建高质量现代金融体系的重要基础。金融强国的提出给传统金融的发展带来了挑战,同时也驱动了传统金融的创新升级。从绿色金融的演化路径来看,绿色金融在底层逻辑上与传统金融存在分歧与融合,既是应对气候变化公地悲剧的金融实践,也颠覆了传统金融的能源文明进化方向、信用体系表达形式以及时间价值贴现方式。在中国绿色转型背景下,绿色金融已紧密融入经济社会系统。在未来的金融强国之路中,中国应转变绿色金融的思维逻辑,把握气候变化下的世界变局,在人类命运共同体下推动人类文明实现新升级。

关键词：习近平生态文明思想绿色金融金融强国碳中和

Carrier Landing Robust Control Based on Longitudinal Decoupling

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Transactions of Nanjing University of Aeronautics and Astronautics 2017年第6期34卷 609-616页

作者： Wu Wenhai Wang Jie liu jintao Zhang Yuanyuan An Gaofeng Naval Aviation University Qingdao 266041P.R.China

We studied carrier landing robust control based on longitudinal decoupling.Firstly,due to the relative strong coupling between the tangential and the normal directions,the height and the velocity channels were decoupled by using the exact linearization method,so that controllers for the two channels could be designed seperately.In the height control,recursive dynamic surface was used to accelerate the convergence of the height control and eliminate″the explosion of complexity″.The radial basis function(RBF)neural network was designed by using the minimum learning parameter method to compensate the uncertainty.A kind of surface with nonsingular fast terminal sliding mode and its reaching law were developed to ensure finite time convergence and to avoid singularity.The controller for the velocity was designed by using super-twisting second-order sliding mode control.The stability of the proposed system was validated by Lyapunov method.The results showed that the Levant′s robust differential observer was improved and used for the observation of the required higher order differential of signals in the controller.The response of aircraft carrier landing under the complex disturbance is simulated and the results verified the approach.

关键词： carrier landing recursive dynamic surface second-order sliding mode nonsingular fast terminal sliding mode

Pressure fluctuation propagation of a pump turbine at pump mode under low head condition

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Science China(Technological Sciences) 2014年第4期57卷 811-818页

作者： GUO Lei liu jintao WANG LeQin QIN DaQing WEI XianZhu Institute of Process Equipment Zhejiang University Beijing Institute of Control Engineering China Aerospace Science and Technology Corporation State Key Laboratory of Hydropower Equipment

Pressure fluctuation at the vaneless space and vanes passages is one of the most important problems for the stable operation of a pump turbine.The fluctuation appears in any operating condition.Much research has been done on the pressure fluctuation of hydraulic machinery.However,the details of pressure fluctuation propagation of the pump turbine at the pump mode have not been revealed.The modern pump turbine with high water head requires the runner to be"flat",which would induce pressure fluctuation more easily than the low head pump turbine.In this article,a high head pump turbine model is used as the research object.As the pressure fluctuation at off-design point is more serious than at the design point,the low head condition is chosen as the research condition.Pressure fluctuation at the vaneless space and vanes passages is predicted by the computational fluid dynamics method based on k-?shear stress transport model.The experiment conducted on the test rig of the Harbin Institute of Large Electrical Machinery is used to verify the simulation method.It proves that the numerical method is a feasible way to research the fluctuation under this operating condition.The pressure fluctuation along the passage direction is analyzed at time and frequency domains.It is affected mainly by the interaction between the runner and vanes.In the circumferential direction,the influence of the special stay vane on the pressure fluctuation is got.The amplitude in the high-pressure side passage of that vane is lower than that in the other side.The study provides a basic understanding of the pressure fluctuation of a pump turbine and could be used as a reference to improve the operation stability of it.

关键词：水泵水轮机压力脉动高水头传播压力波动操作条件调制解调器水轮机模型

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壮大耐心资本的意义与路径

中国金融 2024年第10期 72-73页

作者：王文刘锦涛中国人民大学重阳金融研究院

2024年4月30日,中央政治局会议指出,“要加强国家战略科技力量布局,培育壮大新兴产业,超前布局建设未来产业,运用先进技术赋能传统产业转型升级。要积极发展风险投资,壮大耐心资本。”作为金融领域的一个新概念,“耐心资本”首次在中央... 详细信息

2024年4月30日,中央政治局会议指出,“要加强国家战略科技力量布局,培育壮大新兴产业,超前布局建设未来产业,运用先进技术赋能传统产业转型升级。要积极发展风险投资,壮大耐心资本。”作为金融领域的一个新概念,“耐心资本”首次在中央政治局会议上被提及,并与培育和发展新质生产力相结合,表明了要正确引导资本支持战略新兴产业和未来产业,用长期的、持续的、有耐心的资本实现科技创新和产业升级突破。

关键词：战略新兴产业未来产业中央政治局会议风险投资产业升级金融领域意义与路径资本

Cloning and characterization of the gene cluster required for beauvericin biosynthesis in Fusarium proliferatum

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Science China(Life Sciences) 2013年第7期56卷 628-637页

作者： ZHANG Tao ZHUO Ying JIA XiaoPeng liu jintao GAO Hong SONG FuHang liu Mei ZHANG LiXin CAS Key Laboratory of Pathogenic Microbiology and Immunology Institute of Microbiology Chinese Academy of Sciences University of Chinese Academy of Sciences

Beauvericin, a cyclohexadepsipeptide-possessing natural product with synergistic antifungal, insecticidal, and cytotoxic activities. We isolated and characterized the fpBeas gene cluster, devoted to beauvericin biosynthesis, from the filamentous fungus Fusarium proliferatum LF061. Targeted inactivation of the F. proliferatum genomic copy of fpBeas abolished the production of beauvericin. Comparative sequence analysis of the FpBEAS showed 74% similarity with the BbBEAS that synthesizes the cyclic trimeric ester beauvericin in Beauveria bassiana, which assembles N-methyl-dipeptidol monomer intermediates by the programmed iterative use of the nonribosomal peptide synthetase modules. Differences between the organization of the beauvericin loci in F. proliferaturm and B. bassiana revealed the mechanism for high production of beauvericin in F. proliferatum. Our work provides new insights into beauvericin biosynthesis, and may lead to beauvericin overproduction and creation of new analogs via synthetic biology approaches.

关键词：球孢白僵菌生物合成基因簇枯萎鉴定克隆细胞毒活性环状三聚体

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鹤山市水美乡村试点县建设经验

水资源开发与管理 2024年第3期10卷 77-80,84页

作者：刘金涛广东省水利水电科学研究院广东广州510635 广东省大坝安全技术管理中心广东广州510635

在推行水美乡村建设的背景下,本文对江门市鹤山市水美乡村建设工作进行分析总结。通过回顾鹤山市水美乡村建设过程中的治理成效,总结了系统治理、安全为要、水脉连通、生态提质、文旅交融、以水兴水、共建共养的有效经验做法,并据此提... 详细信息

在推行水美乡村建设的背景下,本文对江门市鹤山市水美乡村建设工作进行分析总结。通过回顾鹤山市水美乡村建设过程中的治理成效,总结了系统治理、安全为要、水脉连通、生态提质、文旅交融、以水兴水、共建共养的有效经验做法,并据此提出了优化建议,以期为下一阶段水美乡村建设提供参考。

关键词：水美乡村系统治理水经济 EPC+O 鹤山市

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噪声干扰的相位误差与相位展开可靠性研究

激光技术 2024年第2期48卷 240-248页

作者：刘锦涛徐鹏王建华解静青岛理工大学信息与控制工程学院青岛266520

为了比较几种3维重建方法的优劣,采用一种评价方法进行理论分析和实验验证,建立了条纹噪声干扰的包裹相位误差模型,求出包裹相位误差的最大方差,然后对3种经典的双频相位展开算法的相位展开可靠性进行了分析和对比。结果表明,双频四步... 详细信息

为了比较几种3维重建方法的优劣,采用一种评价方法进行理论分析和实验验证,建立了条纹噪声干扰的包裹相位误差模型,求出包裹相位误差的最大方差,然后对3种经典的双频相位展开算法的相位展开可靠性进行了分析和对比。结果表明,双频四步相移算法4f_(h)+4f_(l)的抗干扰能力最强,其重建物体表面平滑无褶皱;其次是3f_(h)+3f_(l)算法,其相位误差数量为4f_(h)+4f_(l)的169.7%和126.9%;3f_(h)+2f_(l)算法重建面形存在大量褶痕,测量精度最差;3f_(h)+2f_(l)算法的相位误差数量为4f_(h)+4f_(l)的442.6%和388.8%,但相比于4f_(h)+4f_(l)算法和3f_(h)+3f_(l)算法,测量效率提升了37.5%和16.6%。该研究为评价各双频相移法的优劣提供了一种方法,并为以上3种算法的选择提供了参考。

关键词：光栅噪声相位误差相位展开可靠性

Porosity,Pore Size Distribution and Chloride Permeability of Shotcrete Modified with Nano Particles at Early Age

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Journal of Wuhan University of Technology(Materials Science) 2016年第3期31卷 582-589页

作者：李贺东闫东明 CHEN Genda XU Shilang liu jintao HU Yanjia Department of Civil Engineering Zhejiang-UniversityHangzhou 310027China Dep-artment of Civil Architecture&Environment EngineeringMissouri University of Science and TechnologyRollaMissouri65401USA

Nano particles have been found to be effective in enhancing many properties of regular concretes. However, there is little information on the effect of nano particles on shotcrete. In fact, if similar positive effect of nano particles can also appear in shotcrete, they will greatly benefit the wide application of shotcrete in more and more repair and strengthening of structures in civil engineering, especially in corrosive environments. In this study, through experiments on 70 specimens, the effects of nano SiO2, CaCO3 and Al2O3 particles on the early-age porosity, pore size distribution, compressive strength and chloride permeability of shotcrete were investigated.Test results indicated that nano SiO2 particles significantly increased the compressive strength and chloride penetration resistance; nano Al2O3 and CaCO3 particles had slight enhancing effect on the compressive strength; nano CaCO3 particles were most effective in promoting the chloride penetration resistance of shotcrete. As a conclusion, nano SiO2 particles were recommended when both early age compressive strength and chloride penetration resistance were crucial, and nano CaCO3 particles were recommended when only chloride penetration resistance was concerned for their high cost-effectiveness.

关键词： shotcrete nanoparticles chloride penetration resistance compressive strength porosity