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期刊论文 8

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事件触发控制；分段仿射系统；线性矩阵不等式；执行器饱和；H∞性能 1

体变模量 1

压缩 1

固结 1

最优一致性控制；多智能体系统；非零和博弈；自适应动态规划；输入饱和；脱策强化学习；策略迭代 1

饱和度 1

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Stress field near circular-arc interface crack tip based on electric saturation concept

Longchao DAI, Xinwei WANG

《机械工程前沿（英文）》 2009年 第4卷 第3期   页码 320-325 doi: 10.1007/s11465-009-0042-9

摘要： Within the framework of nonlinear electroelasticity, the anti-plane problem of a circular-arc interfacial crack between a circular piezoelectric inhomogeneity and an infinite piezoelectric matrix subjected to a far-field uniform loading is investigated by an electrical strip saturation model, the complex variable method, and the method of analytical continuation. Explicit closed form expressions for the complex potentials in both the matrix and the inclusion, and the stress intensity factor at the crack tip are presented. Comparison with some related solutions based on the linear electroelastic theory shows the validity of the present solutions

关键词： piezoelectric material     arc crack     strip saturation     stress intensity factor    

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Continuous modeling of soil morphology —thermomechanical behavior of embankment dams

Bettina ALBERS, Krzysztof WILMANSKI

《结构与土木工程前沿（英文）》 2011年 第5卷 第1期   页码 11-23 doi: 10.1007/s11709-010-0081-7

摘要： Macroscopic modeling of soils is based on a number of properties that refer to the mesoscopic morphology. The most fundamental parameters of this art are: 1) coupling parameters between partial stresses of components and deformations of components, 2) porosities, 3) saturation, and 4) permeability and diffusivity, tortuosity. The main aim of this paper is to present in juxtaposition continuous one-, two-, and three-component models of geomaterials appearing in construction of embankment dams. In particular, the above mentioned features, especially saturation with water and seepage problems, modeling of fluidization yielding piping, and generalizations of the Darcy law and changes of porosity, are presented.

关键词： thermomechanical modeling     soil morphology     saturation     porosity    

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Experimental determination of Cd

Farhah Amalya ISMAIL, Ahmad Zaharin ARIS

《环境科学与工程前沿（英文）》 2013年 第7卷 第3期   页码 356-364 doi: 10.1007/s11783-013-0488-1

摘要： Carbonate shells have an astonishing ability in the removal of Cd in a short time period with emphasis on being a low cost adsorbent. In the present study, the sorption capacity of carbonate shells was studied for Cd in batch experiments. The influence of different carbonate shell sizes and physico-chemical factors were evaluated and the results were analyzed for its correlation matrices by using Predictive Analytics Software (PASW). The mineralogy state of aqueous solution regarding the saturation index was simulated using PHREEQC to identify the Cd uptake mechanism. The Cd uptake rates were calculated as well as Ca , concentration, pH, ambient humidity and temperature were measured. Cd removal of 91.52% was achieved after 5 h adsorption. The adsorption efficiencies were significantly influenced by pH as they increased with the increase of pH from acidic solution (5.50±0.02) to slightly alkaline (7.60±0.05). In addition, the mineralogy state of aqueous solution calculated from PHREEQC confirmed that the increment of Ca and concentrations in solution was attributed to the dissolution of carbonate shells. Moreover, the ion exchange adsorption mechanism of Cd toward Ca was identified as the process involved in Cd uptake.

关键词： carbonate shell     cadmium     heavy metal     adsorption mechanism     saturation state    

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高饱和土固结及饱和度对土体固结的影响

金志高

《中国工程科学》 2004年 第6卷 第9期   页码 73-76

摘要：

以Terzaghi土体固结理论和Biot固结理论为基础，按饱和度不同的分类，研究了高饱和土固结机理及过程，深入分析了高饱和土饱和度变化对孔隙流体压缩性的影响，以及由此影响到高饱和土的固结全过程。

关键词： 固结     饱和度     体变模量     压缩    

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输入饱和下多智能体系统最优一致性控制：一类非零和博弈方法 Research Article

李洪阳1,2,魏庆来1,2,3

《信息与电子工程前沿（英文）》 2022年 第23卷 第7期   页码 1010-1019 doi: 10.1631/FITEE.2200010

摘要： 本文针对输入饱和下的多智能体系统，提出一种最优一致性控制方法。引入多智能体博弈理论，将最优一致性控制问题转化为多智能体非零和博弈。之后，通过求解具有非二次输入能量项的耦合Hamilton–Jacobi–Bellman（HJB）方程，实现Nash平衡。提出脱策强化学习方法，在系统模型未知情况下获得Nash平衡解；引入评判神经网络和执行神经网络实现所提方法。理论分析显示迭代控制律收敛到Nash平衡。仿真实验验证了所提方法的有效性。

关键词： 最优一致性控制；多智能体系统；非零和博弈；自适应动态规划；输入饱和；脱策强化学习；策略迭代    

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Controlling nested wrinkle morphology through the boundary effect on narrow-band thin films

Hanyang XU, Tielin SHI, Guanglan LIAO, Qi XIA

《机械工程前沿（英文）》 2019年 第14卷 第2期   页码 235-240 doi: 10.1007/s11465-017-0458-6

摘要： We describe the formation of nested wrinkles created by the thermal mismatch between a narrow-band thin film and a compliant substrate. When a film is described as “narrow-band”, it literally means that the film band width is much shorter than its length; more precisely, it means that the width is comparable with the wavelength of the wrinkles. A silicon mask was used during film sputtering to create narrow-band films on poly (dimethylsiloxane) substrate, thus creating regular boundaries to steer local stresses and control wrinkle morphology. Disordered nano-scale wrinkles were found nested within highly ordered micro-scale sinusoidal wrinkles. The formation of nested wrinkles was explained through the amplitude and wavelength saturation of nano-scale wrinkles. The disordered morphology of nano-scale wrinkles and the highly ordered morphology of micro-scale wrinkles were explained by using the boundary effect.

关键词： nested and hierarchical wrinkles     morphology     amplitude saturation     boundary effect    

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Comparison between two commercial uranium resins and a uranyl sulphate imprinted resin based on self-assembling MIT

LIU Yaochi, XU Wei, XU Weijian, LIU Hanmao, ZHANG Xiaowen

《化学科学与工程前沿（英文）》 2007年 第1卷 第4期   页码 327-331 doi: 10.1007/s11705-007-0059-8

摘要： In recent years, resins prepared via molecular imprinting technology have received considerable attention owing to their recognition and selective adsorption. This paper deals with the comparative investigation between a uranyl sulphate imprinted ion-exchange based on self-assembling molecular imprinting technology and two kinds of commercial uranium resins (the medium pore resin D263 and strong base resin 201×7). The studies were focused on their kinetics performance, adaptability toward pH, and performance of saturation and elution in laboratory-scale column. The results show that the imprinted ion exchange resin has the fast kinetics, high adaptability toward pH, and good adsorption and elution performance.

关键词： saturation     molecular imprinting     imprinting technology     adaptability     commercial    

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具有执行器饱和的分段仿射系统基于事件的H∞控制 Research Articles

蒋永豪,吴炜,楼旭阳,江正仙,崔宝同

《信息与电子工程前沿（英文）》 2021年 第22卷 第5期   页码 615-766 doi: 10.1631/FITEE.1900601

摘要： 针对具有执行器饱和的离散时间分段仿射系统，提出一种事件触发控制器设计方法。考虑饱和信息，提出一种新的事件触发策略，该策略能节省通信资源。基于分段李雅普诺夫函数，推导出基于线性矩阵不等式的可行性条件。该条件不仅能保证闭环系统在一定H∞性能指标下的稳定性，还能减少信号传输数量。最后，利用仿真实例验证该方法的有效性。

关键词： 事件触发控制；分段仿射系统；线性矩阵不等式；执行器饱和；H∞性能    

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标题 作者 时间 类型 操作

Stress field near circular-arc interface crack tip based on electric saturation concept

Longchao DAI, Xinwei WANG

期刊论文

Continuous modeling of soil morphology —thermomechanical behavior of embankment dams

Bettina ALBERS, Krzysztof WILMANSKI

期刊论文

Experimental determination of Cd

Farhah Amalya ISMAIL, Ahmad Zaharin ARIS

期刊论文

高饱和土固结及饱和度对土体固结的影响

金志高

期刊论文

输入饱和下多智能体系统最优一致性控制：一类非零和博弈方法

李洪阳1,2,魏庆来1,2,3

期刊论文

Controlling nested wrinkle morphology through the boundary effect on narrow-band thin films

Hanyang XU, Tielin SHI, Guanglan LIAO, Qi XIA

期刊论文

Comparison between two commercial uranium resins and a uranyl sulphate imprinted resin based on self-assembling MIT

LIU Yaochi, XU Wei, XU Weijian, LIU Hanmao, ZHANG Xiaowen

期刊论文

具有执行器饱和的分段仿射系统基于事件的H∞控制

蒋永豪,吴炜,楼旭阳,江正仙,崔宝同

期刊论文