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加权有向关联网络构建与表征的水中目标远距离检测

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兵工学报 2024年第8期45卷 2584-2593页

作者：张红伟王海燕闫永胜申晓红西北工业大学航海学院陕西西安710072 西北工业大学海洋声学信息感知工业和信息化部重点实验室陕西西安710072 陕西科技大学电子信息与人工智能学院陕西西安710021

水中目标的远距离检测是海洋防御体系的关键技术之一,对国防及民用领域均具有十分重要的作用。然而,目前尚缺乏行之有效的水中目标远距离检测方法,特别是目标先验信息未知的情况下变的愈加困难。为解决这一问题,提出一种新的方法—加权... 详细信息

水中目标的远距离检测是海洋防御体系的关键技术之一,对国防及民用领域均具有十分重要的作用。然而,目前尚缺乏行之有效的水中目标远距离检测方法,特别是目标先验信息未知的情况下变的愈加困难。为解决这一问题,提出一种新的方法—加权有向关联网络。通过矢量声信号到加权有向关联网络的映射,将信号检测问题转化为网络拓扑的表征,并通过对网络拓扑的特性分析及特征提取,实现无目标先验信息下的水中目标远距离检测。并通过仿真与实测数据对所提出的方法进行验证。研究结果表明:与现有的窄带互谱检测、冒泡熵等方法相比,所提方法能够检测到更低信噪比的水中目标,实现了无需目标先验信息的水中目标远距离检测;该方法的应用具有一定的实际意义和应用前景,可以为海洋防御和民用领域的水下目标检测提供有效的技术支撑。

关键词：水中目标远距离检测复杂网络矢量声信号加权有向关联网络无目标先验

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典型危险废物焚烧工艺环境影响评价产污分析

黑龙江环境通报 2024年第4期37卷 43-45页

作者：闫永胜四川省环科源科技有限公司成都610047

本文以危险废物典型焚烧工艺为例,通过对危险废物焚烧项目环境影响评价中废气、废水、固废和噪声等进行产排污分析,提出减少污染物排放的控制措施,为同类工程开展环境影响评价工作提供一定的参考。

关键词：危险废物焚烧环境影响评价

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图网络在线异常检测跨域耦合模型优化方法

兵工学报 2024年第9期45卷 3261-3273页

作者：孙旋迪申晓红王海燕闫永胜锁健西北工业大学航海学院陕西西安710072 西北工业大学海洋声学信息感知工业和信息化部重点实验室陕西西安710072

图网络在线异常检测模型在导弹系统网络通信模式监控、雷达系统恶意攻击识别,以及战机控制系统网络活动监测等应用领域中发挥着至关重要的作用。该检测模型将图谱域信号处理模型与时域检测模型相耦合,其高阶非线性处理过程给以高精度检... 详细信息

图网络在线异常检测模型在导弹系统网络通信模式监控、雷达系统恶意攻击识别,以及战机控制系统网络活动监测等应用领域中发挥着至关重要的作用。该检测模型将图谱域信号处理模型与时域检测模型相耦合,其高阶非线性处理过程给以高精度检测为导向的跨域耦合异常检测的模型优化带来了巨大挑战。针对此问题,提出了一种图网络在线异常检测跨域耦合模型优化方法。该方法关注高阶非线性跨域耦合检测模型处理信号空时相关性,通过对图网络跨域耦合模型处理信号统计特性的精细推导,揭示该检测模型的空时耦合机理及耦合过程对检测性能的影响,为模型中关键参数的选择提供了依据,弥补了该领域以往仅依赖简化模型和经验进行参数选择的不足。仿真及外场试验结果表明:所提模型优化方法在确保图网络异常检测稳健性的同时,显著提高了检测准确率。

关键词：图信号处理异常检测跨域耦合空时相关性模型优化

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The representations of two types of functionals on L^∞(Ω,F) and L^∞(Ω,F,P)

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Science China Mathematics 2006年第10期49卷 1376-1382页

作者： SONG yongsheng yan Jia'an Institute of Applied Mathematics Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100080 China Institute of Applied Mathematics Academy of Mathematics and Systems Science Chinese Academy of Sciences Beijing 100080 China

This article gives the representations of two types of real functionals on Z∞(Ω,F) or L∞(Ω,F,P) in terms of Choquet integrals. These functionals are comonotonically subadditive and comonotonically convex, respecti... 详细信息

关键词： Choquet integral, comonotonically subadditive, comonotonically convex.

Biosorption of cesium(Ⅰ) from aqueous solution by a novel exopolymers secreted from Pseudomonas fluorescens C-2: Equilibrium and kinetic studies

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Journal of Environmental Sciences 2011年第7期23卷 1104-1112页

作者： yanli Mao Hongwei Hu yongsheng yan School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 China School of Environmental and Municipal Engineering Department Henan University of Urban Construction Pingdingshan 467000 China

The biosorption characteristics of Cs（I） ions from aqueous solution using exopolymers （PFC02） produced from Pseudomonas fluorescens C-2 were investigated as a function of pH, biosorbent dosage, contact time and initial concentration. pH played a major role in the adsorption process, and the optimum pH for the removal of Cs（I） was 8.0. Langmuir, Freundlich and Dubinin-Radushkevich （D-R） models were applied to describe the biosorption isotherm of the Cs（I） ions by PFC02. The Lagergren first-order, pseudo second-order kinetic and intraparticle diffusion models were used to test the kinetic data. Langmuir model and D-R model fitted the equilibrium data better than the Freundlich isotherm. The monolayer adsorption capacities of PFC02 as obtained from Langmuir isotherm at 25°C was found to be 32.63 mg/g. From the D-R isotherm model, the mean free energy was calculated as 26.73 kJ/mol, indicating that the biosorption of cesium was chemisorption. The biosorption process was rapid, and the kinetic rates were best fitted to the pseudo second-order model, which indicated the biosorption process operated through chemisorption mechanism. FT-IR analysis of PFC02 showed the possible functional groups responsible for cesium adsorption were hydroxyl, carboxyl, carbonyl and sulphonate groups. SEM analysis showed the porous structure of the material while EDX analysis confirmed the adsorption of Cs（I） on PFC02. Cesium adsorbed onto the PFC02 could be desorbed efficiently using 1 mol/L HNO 3 , and the enrichment factor was 50.0. Furthermore, PFC02 could be reused five times with only about 8.25% regeneration loss. The developed method was successfully utilized for the removal of Cs（I） ions from aqueous solution.

关键词： Pseudomonas fluorescens C-2 exopolymers Cs(I) biosorption isotherm kinetics

Facile synthesis of metal-organic frameworks embedded in interconnected macroporous polymer as a dual acid-base bifunctional catalyst for efficient conversion of cellulose to 5-hydroxymethylfurfural

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Chinese Journal of Chemical Engineering 2022年第4期35卷 169-181页

作者： yanan Wei Yunlei Zhang Bing Li Wen Guan Changhao yan Xin Li yongsheng yan Institute of Green Chemistry and Chemical Technology School of Chemistry and Chemical EngineeringJiangsu UniversityZhenjiang 212000China Research Center of Fluid Machinery Engineering and Technology Jiangsu UniversityZhenjiang 212000China

5-Hydroxymethylfurfural(5-HMF),as a key platform compound for the conversion of biomass to various biomass-derived chemicals and biofuels,has been attracted extensive *** this research,using Pickering high internal phase emulsions(Pickering HIPEs)as template and functional metal-organic frameworks(MOFs,UiO-66-SO;H and UiO-66-NH;)/Tween 85 as co-stabilizers to synthesis the dual acid-base bifunctional macroporous polymer catalyst by one-pot process,which has excellent catalytic activity in the cascade reaction of converting cellulose to *** effects of the emulsion parameters including the amount of surfactant(ranging from 0.5%to 2.0%(mass)),the internal phase volume fraction(ranging from 75%to 90%)and the acid/base Pickering particles mass ratio(ranging from 0:6 to 6:0)on the morphology and catalytic performance of solid catalyst were systematically *** results of catalytic experiments suggested that the connected large pore size of catalyst can effectively improve the cellulose conversion,and the synergistic effect of acid and base active sites can effectively improve the 5-HMF *** highest 5-HMF yield,about 40.5%,can be obtained by using polymer/MOFs composite as catalyst(Poly-P12,the pore size of(53.3±11.3)μm,the acid density of 1.99 mmol·g^(-1)and the base density of 1.13 mol·g^(-1))under the optimal reaction conditions(130℃,3 h).Herein,the polymer/MOFs composite with open-cell structure was prepared by the Pickering HIPEs templating method,which provided a favorable experimental basis and theoretical reference for achieving efficient production of high addedvalue product from abundant biomass.

关键词： Catalyst Biomass Hydrolysis 5-Hydroxymethylfurfural Pickering high internal phase emulsions templated polymer Acid-base bifunctional site

Synthesis,characterization,and adsorption performance of Pb(Ⅱ)-imprinted polymer in nano-TiO_2 matrix

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Journal of Environmental Sciences 2009年第12期21卷 1722-1729页

作者： LI Chunxiang GAO Jie PAN Jianming ZHANG Zulei yan yongsheng School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang 212013 China

Surface ion-imprinted in combination with sol-gel process was applied to synthesis a new Pb（Ⅱ）-imprinted polymer for selective separation and enrichment of trace Pb（Ⅱ） from aqueous solution. The prepared material was characterized by using the infrared spectra, X-ray diffractometer, and scanning electron microscopy. The batch experiments were conducted to study the optimal adsorption condition of adsorption trace Pb（Ⅱ） from aqueous solutions on Pb（Ⅱ）-imprinted polymer. The equilibrium was achieved in approximately 4,0 h, and the experimental kinetic data were fitted the pseudo second-order model better. The maximum adsorption capacity was 22.7 mg/g, and the Langmuir equation fitted the adsorption isotherm data. The results of selectivity experiment showed that selectively adsorbed rate of Pb（Ⅱ） on Pb（Ⅱ）-imprinted polymer was higher than all other studied ions. Desorption conditions of the adsorbed Pb（Ⅱ） from the Pb（Ⅱ）-imprinted polymer were also studied in batch experiments. The prepared Pb（Ⅱ）-imprinted polymer was shown to be promising for the separation and enrichment of trace Pb（Ⅱ） from water samples. The adsorption and desorption mechanisms were proposed.

关键词： Pb(Ⅱ) ion-imprinted sol-gel adsorption selective

内蒙古格鲁其堆山铅锌矿床地质特征及流体包裹体研究

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黄金 2024年第6期45卷 85-90页

作者：刘丽君张悦闫永生中国地质调查局哈尔滨自然资源综合调查中心自然资源部哈尔滨黑土地地球关键带野外科学观测研究站

格鲁其堆山铅锌矿床是近年来新发现具有较大找矿潜力的铅锌矿床,位于得尔布干断裂中段西侧,矿化体赋存于额尔古纳河组、佳疙疸组等地层中,铅锌矿化与闪长岩、闪长玢岩具有密切的生成关系,受北东向断裂控制。热液期成矿作用大致可划分为... 详细信息

格鲁其堆山铅锌矿床是近年来新发现具有较大找矿潜力的铅锌矿床,位于得尔布干断裂中段西侧,矿化体赋存于额尔古纳河组、佳疙疸组等地层中,铅锌矿化与闪长岩、闪长玢岩具有密切的生成关系,受北东向断裂控制。热液期成矿作用大致可划分为黄铁矿±方铅矿-石英阶段(Ⅰ),方铅矿、闪锌矿±黄铜矿-石英阶段(Ⅱ),少硫化物-碳酸盐阶段(Ⅲ)。流体包裹体研究结果表明,石英中仅发育气液两相包裹体,成矿流体为简单中低温、低盐度的NaCl-H_(2)O热液体系,早期成矿流体应以岩浆热液为主。主成矿阶段(Ⅱ)完全均一温度峰值集中在200℃~250℃,平均值230.2℃,盐度峰集中在2%~6%,捕获时静水压力集中在14.00~25.27 MPa,估算成矿深度为1.40~2.53 km。综合分析认为,格鲁其堆山铅锌矿床与中酸性浅成侵入体具有密切时空关系,成因类型属中温热液脉型。

关键词：铅锌矿床地质特征流体包裹体成矿机制格鲁其堆山内蒙古

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Selective Adsorption of Co（II） by Mesoporous Silica SBA-15-Supported Surface Ion Imprinted Polymer： Kinetics, Isotherms, and Thermodynamics Studies

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Chinese Journal of Chemistry 2011年第3期29卷 387-398页

作者： Liu, yan Liu, Zhanchao Dai, diangdong Gao, Jie Xie, Jimin yan, yongsheng School of Chemistry and Chemical Engineering Jiangsu University Zhenjiang Jiangsu 212013 China School of Materials Science and Engineering Jiangsu University of Science and Technology Zhenjiang Jiangsu 212013 China

A novel surface ion implinted adsorbent [Co（II）-IIP] using polyethyleneimine （PEI） as function monomer and ordered mesoporous silica SBA-15 as support matrix was prepared for Co（II） analysis with high selectivity. The prepared polymer was characterized by Fourier transmission infrared spectrometry, scanning electron microscopy, X-ray diffraction and nitrogen adsorption-desorption isotherm. Bath experiments of Co（II） adsorption onto Co（II）-IIP were performed under the optimum conditions. The experimental data were analyzed by pseudo-first-order and pseudo-second-order kinetic models. It was found that the pseudo-second-order model best correlated the kinetic data. The intraparticle diffusion and liquid film diffusion were applied to discuss the adsorption mechanism. The results showed that Co（II） adsorption onto IIP was controlled by the intraparticle diffusion mechanism, along with a considerable film diffusion contribution. Langmuir, Freundlich and Dubinin-Radushkevich adsorption models were applied to determine the isotherm parameters. Langmuir model fitted the experiment data well and the maximum calculated capacity of Co（II） reached 39.26 mg/g under room temperature. The thermodynamic data were indicative of the spontaneousness of the endothermic sorption process of Co（II） onto Co（II）-IIP. Co（II）-IIP showed high affinity and selectivity for template ion compared with non imprinted polymer （NIP）.

关键词： surface ion imprinted Co(II) polyethyleneimine (PEI) SBA-15 adsorption selective