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Reversing inhibition to promotion in phenol-ammonium metabolism via algal-microbial fuel cell: Mechanisms of phenol-ammonium interaction and synergistic removal

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Journal of Hazardous Materials 2025年 493卷 138417页

作者： Liu, Yaqi Zheng, Mengqi Lv, Longyi Chen, Guowei Wang, Chengye Hu, Zhenhu Feng, Jingwei Xie, Binghan Han, Hongjun Wang, Wei Department of Municipal Engineering School of Civil Engineering Hefei University of Technology Hefei230009 China State Key Laboratory of Urban Water Resource and Environment Harbin Institute of Technology Harbin150090 China Anhui Province Key Laboratory of Industrial Wastewater and Environmental Treatment Hefei230024 China Anhui Provincial Engineering Laboratory for Rural Water Environment and Resources Hefei230009 China Tianjin Key Laboratory of Clean Energy and Pollution Control School of Energy and Environmental Engineering Hebei University of Technology Tianjin300401 China

Addressing the challenge of metabolic inhibition between phenol and ammonium in coal gasification wastewater (CGW), this study introduced a novel algal-microbial fuel cell (AMFC). It combined the advantages of electroactive bacteria and Synechocystis to achieve synergistic metabolism, establishing a cooperative mechanism for pollutant separation and enhanced transformation to achieve the mutual promotion of phenol and ammonium removal. Remarkably, raising phenol to 1500 mg COD/L boosted ammonium removal by 31.51 % in AMFC, due to a consistently higher potential difference than the control, which enhanced extracellular electron transfer (EET) via conductive nanowire and drove ammonium migration. Similarly, elevating ammonium concentration to 150 mg/L resulted in an 11.79 % increase in phenol removal efficiency, driven by superior solution conductivity and EET, as well as more electron acceptors (oxygen) from the algal cathode. This system challenged the conventional understanding of the antagonistic relationship between phenol and ammonium. Under high phenol conditions, the electroactive bacteria Clostridium sensu stricto 1 and Acinetobacter, Perlucidibaca formed a synergistic metabolic network, whereas Zoogloea, Ideonella, and other phenol-degrading bacteria were significantly enriched in high ammonium environments. The AMFC represented a breakthrough in reversing the metabolic inhibition between phenol and ammonium, providing a novel and energy-efficient strategy for treating complex industrial wastewater. © 2025 Elsevier B.V.

关键词： Microbial fuel cells

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Enhanced Seagull Optimization Algorithm for Photovoltaic Cell Parameter Estimating 41

Enhanced Seagull Optimization Algorithm for Photovoltaic Cel...

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第41届中国控制会议

作者： Hongyin Wei Kailin Xu Jianming Zhang Institute of Cyber-Systems and Control State Key Laboratory of Industrial Control TechnologyZhejiang University

ISBN: (数字)9789887581536

ISBN: (纸本)9781665482561

In this paper,an enhanced seagull optimization algorithm based on a double group evolutionary mechanism(DSOA) is proposed for photovoltaic(PV) cell parameter *** the DSOA,a double group search strategy and time-based mutation strategy are added to the population renewal mechanism of the conventional *** performance of DSOA on standard benchmark functions is surprising;it was good at accuracy and exploitation,also convergence *** with SOA and the other two classical intelligent optimization algorithms,the performance of DSOA is comprehensively *** is adopted to estimate PV cell *** simulation results demonstrate that estimated currents of circuit model based on DSOA have high similarity to the measured value of the photovoltaic cell.

关键词： Photovoltaic(PV) parameter estimating seagull optimization algorithm intelligent optimization algorithms

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Adaptive Cuckoo Search Algorithm for Parameter Estimation of Heavy Oil Thermal Cracking Model 38

Adaptive Cuckoo Search Algorithm for Parameter Estimation of...

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第三十八届中国控制会议

作者： Yiping Chen Ning Wang State Key Laboratory of Industrial Control Technology Institute of Cyber-systems and Control Zhejiang University

ISBN: (纸本)9781728123295;9789881563972

To overcome the shortcomings of cuckoo search, an adaptive cuckoo search(ACS) algorithm is proposed. In the ACS algorithm, the logarithmic adaptive step size is adopted and the random traction component is added to the Lévy flight formula to update the population. The effectiveness of the ACS algorithm is verified with four benchmark functions. The ACS algorithm is applied to estimate the parameters of the heavy oil thermal cracking model. The experimental results show that the established model has higher accuracy than the models obtained by the other optimization algorithms.

关键词： Adaptive cuckoo search algorithm(ACS) heavy oil thermal cracking parameter estimation

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Feedback structure based entropy approach for multiple-model estimation

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Chinese Journal of Aeronautics 2013年第6期26卷 1506-1516页

作者： Shen-tu Han Xue Anke Guo Yunfei State Key Laboratory of Industrial Control Technology Institute of Cyber-System and Control Zhejiang University Institution of Information and Control Hangzhou Dianzi University Institution of Information and Control Hangzhou Dianzi University

The variable-structure multiple-model（VSMM）approach,one of the multiple-model（MM）methods,is a popular and effective approach in handling problems with mode *** model sequence set adaptation（MSA）is the key to design a better ***,MSA methods in the literature have big room to improve both theoretically and *** this end,we propose a feedback structure based entropy approach that could fnd the model sequence sets with the smallest size under certain *** fltered data are fed back in real time and can be used by the minimum entropy（ME）based VSMM algorithms,i.e.,***,the full Markov chains are used to achieve optimal ***,the myopic method together with particle flter（PF）and the challenge match algorithm are also used to achieve sub-optimal solutions,a trade-off between practicability and *** numerical results show that the proposed algorithm provides not only refned model sets but also a good robustness margin and very high accuracy.

关键词： Feed back Maneuvering tracking Minimum entropy Model sequence set adaptation Multiple-model estimation

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Distributed Online Convex Optimization with Time-Varying Constraints: Tighter Cumulative Constraint Violation Bounds under Slater's Condition

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IEEE Transactions on Automatic control 2025年

作者： Yi, Xinlei Li, Xiuxian Yang, Tao Xie, Lihua Hong, Yiguang Chai, Tianyou Johansson, Karl H. National Key Laboratory of Autonomous Intelligent Unmanned Systems Shanghai Institute of Intelligent Science and Technology China Ministry of Education Frontiers Science Center for Intelligent Autonomous Systems China Massachusetts Institute of Technology Lab for Information & Decision Systems CambridgeMA02139 United States Northeastern University State Key Laboratory of Synthetical Automation for Process Industries Shenyang110819 China Nanyang Technological University School of Electrical and Electronic Engineering 50 Nanyang Avenue 639798 Singapore Kth Royal Institute of Technology Division of Decision and Control Systems School of Electrical Engineering and Computer Science Sweden Digital Futures Stockholm10044 Sweden

This paper considers distributed online convex optimization with time-varying constraints. In this setting, a network of agents makes decisions at each round, and then only a portion of the loss function and a coordinate block of the constraint function are privately revealed to each agent. The loss and constraint functions are convex and can vary arbitrarily across rounds. The agents collaborate to minimize static network regret and network cumulative constraint violation. A novel distributed online algorithm with a vanishing stepsize is proposed and it achieves an O(Tmax {c,1-c}) static network regret bound and an O(T1-c/2) network cumulative constraint violation bound, where T is the number of rounds and c∈ (0,1) is a user-defined trade-off parameter. When Slater's condition holds (i.e, there is a point that strictly satisfies the inequality constraints), the network cumulative constraint violation bound is reduced to O(T1-c). Moreover, if the loss functions are strongly convex, then static network regret bound is reduced to O(log (T)), and the network cumulative constraint violation bound is reduced to O(√log (T)T) and O(log (T)) without and with Slater's condition, respectively. To the best of our knowledge, this paper is the first to achieve tighter (network) cumulative constraint violation bounds for (distributed) online convex optimization with time-varying constraints under Slater's condition. Finally, the theoretical results are verified through numerical simulations. © 1963-2012 IEEE.

关键词： Convex optimization

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Research on forming mechanism of digitalized frozen sand mold green casting

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Journal of Intelligent Manufacturing and Special Equipment 2025年第1期6卷 83-98页

作者： Haoqin Yang Zhongde Shan Dandan Yan Jianpei Shi Xiao Liang Shijie Dong Jian Huang Lei Luo Haoming Shi Runmou Wu State Key Laboratory of Mechanics and Control for Aerospace Structures Nanjing University of Aeronautics and Astronautics Nanjing China Nanjing University of Aeronautics and Astronautics Nanjing China Department of Mechanical Engineering Tsinghua University Beijing China Nanjing Yangtze River Industrial Technology Research Institute Co. Ltd. Nanjing University of Aeronautics and Astronautics Nanjing China

Purpose This study aims to promote the sustainable green development of the casting industry. Design/methodology/approach This paper presents an innovative frozen sand mold green casting technology that utilizes water as a novel alternative to conventional organic or inorganic binders in the sand mold production process. The sand is solidified through cryogenic treatment and subsequently transformed into complex, high-quality structures utilizing Computer Numerical control machining or 3D printing methods. Findings In contrast to conventional sand mold manufacturing technology, this method has advantages in environmental conservation and sustainable production practices, especially its ability to minimize the emission of harmful gases and dust to nearly zero throughout the casting process. Additionally, the high thermal conductivity of the frozen sand molds significantly enhances the performance of the castings. Furthermore, by implementing an economic and efficient thermal dissipation circulation, it is possible to directly recycle more than 90% of the casting sand. This approach helps to avoid tedious procedures associated with traditional sand mold recovery methods that rely on physical and chemical techniques. Social implications This technology not only facilitates the green transformation of the contemporary casting industry but also establishes a new technology standard for more sustainable and environmentally friendly production processes. Originality/value This paper presents an innovative frozen sand mold green casting technology that utilizes water as a novel alternative to conventional organic or inorganic binders in the sand mold production process.

关键词： Frozen sand mold CNC machining 3D printing High-performance castings Green casting

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An Improved Approach to Test Diagnosability of Bounded Petri Nets

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IEEE/CAA Journal of Automatica Sinica 2017年第2期4卷 297-303页

作者： Ning Ran Hongye Su Shouguang Wang State Laboratory of Industrial Control Technology Institute of Cyber-Systems and ControlZhejiang UniversityYuquan Campus IEEE School of Information & Electronic Engineering Zhejiang Gongshang University

For bounded Petri nets, Cabasino et al. propose a diagnosability test method that is based on the analysis of a modified basis reachability graph and a basis reachability diagnoser. However, its complexity is exponential in the number of nodes of the basis reachability diagnoser. In order to reduce the complexity of their method, this paper presents a new diagnosability test approach for bounded Petri nets. We present the concept of an extended basis reachability graph and prove that our approach is of polynomial complexity in the number of nodes of extended basis reachability graphs. An example is given to illustrate the application of the presented approach. © 2017 Chinese Association of Automation.

关键词： Failure analysis Fault detection Petri nets Testing

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Polarization-Insensitive Terahertz Biosensing Method Based on Toroidal Dipole Metasurface

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IEEE Sensors Journal 2025年

作者： Liu, Heng Ke, Xue Shen, Liran Cao, Yuqi Zhang, Yi Tian, Liangfei Chen, Jiani Meng, Xue Huang, Pingjie Zhang, Guangxin Zhejiang University State Key Laboratory of Industrial Control Technology College of Control Science and Engineering Hangzhou310000 China Zhejiang University College of Biomedical Engineering and Instrument Science Hangzhou310000 China Hangzhou Ltd TROE Photonics Hangzhou310000 China Zhejiang University School of Medicine Key Laboratory of Molecular Biology in Medical Sciences The Second Affiliated Hospital Department of Breast Surgery Cancer Institute Key Laboratory of Cancer Prevention and Intervention China National Ministry of Education Zhejiang Province Hangzhou310009 China Xi’an University Shaanxi Key Laboratory of Surface Engineering and Remanufacturing College of Mechanical and Material Engineering Xi’an710065 China

Terahertz (THz) metasurfaces based on toroidal dipoles exhibit significant potential in biosensing applications. This study presents a polarization-insensitive THz metasurface biosensor designed with a fourfold rotationally symmetric toroidal dipole structure, consisting of a circular ring and four split-ring resonators. By exploiting the low-loss and polarization-insensitive properties of toroidal dipoles, the proposed sensor achieves significant electromagnetic field magnification and high sensitivity of biomolecular detection in the THz regime. Numerical simulation demonstrates a refractive index sensitivity of 721 GHz/RIU, while experimental measurements of cell suspensions indicate a sensitivity of 400 kHz/(cell/mL). The polarization-insensitive response, analyzed through multipole decomposition theory, is attributed to the balanced electromagnetic characteristics of the structure, which ensures consistent excitation of toroidal dipoles and magnetic quadrupoles across different polarization angles. For quantitative analysis, partial least squares (PLS) and support vector regression (SVR) methods are utilized to analyze liver cell lines (HepG2 and Miha), achieving high predictive accuracy with a mean squared error of 0.083. This work circumvents the polarization dependence observed in conventional THz biosensors and proposes an innovative approach for developing high-performance biosensing devices. © 2001-2012 IEEE.

关键词： Electromagnetic fields

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Design and analysis of a whole-body controller for a velocity controlled robot mobile manipulator

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Science China(Information Sciences) 2020年第7期63卷 98-112页

作者： Mantian LI Zeguo YANG Fusheng ZHA Xin WANG Pengfei WANG Ping LI Qinyuan REN Fei CHEN State Key Laboratory of Robotics and Systems Harbin Institute of Technology Shenzhen Academy of Aerospace Technology Key Laboratory of Industrial Control Technology Zhejiang University

Mobile manipulators, which are intrinsically redundant when the manipulator and mobile base are moving together, are known for their capabilities to carry out multiple tasks at the same time. This paper presents a whole-body control framework, inspired by legged bio-robots, for a velocity controlled non-holonomic mobile manipulator based on task priority. control primitives, such as manipulability optimization, trajectory tracking of the end-effector and mobile base, and collision avoidance, are considered in the framework and arranged at different priorities. Lower priority tasks are projected into the null space of control tasks with higher priorities. As a result, lower level tasks are completed without affecting the performance of higher priority tasks. Several experiments are implemented to verify the effectiveness of the proposed controller. The proposed method is proved to be an effective way to solve the whole-body control problem of velocity controlled mobile manipulators.

关键词： mobile manipulator whole-body control velocity controlled task priority null-space projection

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Design and reliability,availability,maintainability,and safety analysis of a high availability quadruple vital computer system

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第12期12卷 926-935页

作者： Ping TAN Wei-ting HE Jia LIN Hong-ming ZHAO Jian CHU State Key Laboratory of Industrial Control Technology ＆ Institute of Cyber-Systems and Control Zhejiang University Hangzhou 310027 China hejiang Insigma-Supcon Co. Ltd. Hangzhou 310013 China

With the development of high-speed railways in China,more than 2000 high-speed trains will be put into *** and efficiency of railway transportation is increasingly *** have designed a high availability quadruple vital computer (HAQVC) system based on the analysis of the architecture of the traditional double 2-out-of-2 system and 2-out-of-3 *** HAQVC system is a system with high availability and safety,with prominent characteristics such as fire-new internal architecture,high efficiency,reliable data interaction mechanism,and operation state change *** hardware of the vital CPU is based on ARM7 with the real-time embedded safe operation system (ES-OS).The Markov modeling method is designed to evaluate the reliability,availability,maintainability,and safety (RAMS) of the *** this paper,we demonstrate that the HAQVC system is more reliable than the all voting triple modular redundancy (AVTMR) system and double 2-out-of-2 ***,the design can be used for a specific application system,such as an airplane or high-speed railway system.

关键词： Fault tolerant High availability quadruple vital computer （HAQVC） Reliability availability maintainability and safety （RAMS）

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