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4th International Conference on Energy Power and Automation engineering, ICEPAE 2023

作者： Luo, Jiliang Lin, Zexuan Li, Xuhang Liu, Wei Pan, Chunrong School of Mechanical and Electrical Engineering Jiangxi University of Science and Technology Ganzhou341000 China College of Information Science and Engineering Huaqiao University Xiamen361021 China Fujian Engineering Research Center of Motor Control and System Optimal Schedule Xiamen361021 China

ISBN: (纸本)9789819988778

This paper presents an automatic planning method for pipe-line systems under complex logic control rules based on Petri nets. Petri nets are usually modeled manually, which can lead to incomplete models of complex logic control systems. To address this issue, we extend the planning domain definition language (PDDL), which can be automatically translated into Petri nets. For complex logic control pipe-line systems, given a set of tasks, it is difficult to quickly formulate the process execution sequence through manual calculation. This paper designs an automatic pipe-line system planning method based on Petri nets, which can accurately generate Petri nets model and process execution sequences. The beer filtration system is taken as an example to illustrate the method. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Petri nets

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New insights into membrane fouling in coagulation-ultrafiltration by cake characteristics analysis:A case study with PACl-Al_(13)and PACl

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Journal of Environmental sciences 2024年第12期146卷 217-225页

作者： Mingyao Xu Wei Ju Zhenbei Wang Jun Nan Fei Qi Chen Li Yatao Liu Wei Li Dezhi Sun Beijing Key Lab for Source Control Technology of Water Pollution College of Environmental Science and EngineeringBeijing Forestry UniversityBeijing 100083China Beijing Forestry University Science Co. Ltd.Beijing 100085China Skate Key Laboratory of Urban Water Resource and Environment School of EnvironmentHarbin Institute of TechnologyHarbin 150090China Research Center for Eco-environmental Engineering Dongguan University of TechnologyDongguan 523106China

Membrane fouling is a bottleneck issue that hindered the further application of ultrafiltration *** alleviate membrane fouling,coagulation-ultrafiltration(C-UF)process using polyaluminum chloride(PACl)and PACl-Al_(13)with high proportion of Al_(13)O_(4)(OH)_(24)^(7+)as coagulants,respectively,were investigated at various pH *** indicated that an increase in solution pH contributed to larger floc size and looser floc structure for both PACl and PACl-Al_(13).It was conducive to the formation of more porous cake,as evidenced by mean pore area and pore area distribution of cake,leading to lower reversible ***,humic acid(HA)removal presented a trend of first increasing and then decreasing with the increase of *** optimal HA removal was achieved at pH 6 regardless of coagulant type,suggesting that the slightest irreversible fouling should be occurred at this ***,the irreversible fouling with PACl coagulant achieved a minimum value at pH 9,while the minimal irreversible fouling with PACl-Al_(13)was observed at pH *** speculated that the cake formed by PACl could further intercept HA prior to UF process at alkaline ***,compared with PACl,PACl-Al_(13)had a stronger charge neutralization ability,thus contributing to more compact floc structure and higher HA removal at various pH *** UF fractionation measurement,higher HA removal for PACl-Al_(13)was due to higher removal of HA with molecular weight less than 50 kDa.

关键词： Coagultion-ultrafiltration Floc properties Cake characteristics Molecular weight of HA Membrane fouling

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Enhanced simultaneous absorption of NO_(x) and SO_(2) in oxidation-reduction-absorption process with a compounded system based on Na_(2)SO_(3)

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Journal of Environmental sciences 2022年第1期34卷 1-10页

作者： Sichao Li Wenjun Huang Haomiao Xu Kai Liu Jia-nan Wang Yaning Sun Zan Qu Naiqiang Yan School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Jinan Motor Vehicle Pollution Prevention and Control Center(Jinan Ecological Environment Information Center) Jinan 250000China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

Oxidation of sulfite and competitive absorption existed in Na_(2)SO_(3) solution for simultaneous removal of NO_(x) and SO_(2),inhibited the long-term high-efficiency when used for practical applications.A matching strategy was developed to solve these *** combination was used to retard the oxidation of antioxidant and enhance inhibition of S(IV)(tetravalent sulfur)***(HQ)and sodium thiosulfate(ST)showed a positive synergistic effect on inhibition of S(IV)*** SO_(2) concentration was 500 and 2000 ppmV,the addition of 0.1 wt.%HQ and 1 wt.%ST decreased the percentage of S(IV)oxidized by oxygen by over 30%and 40%,***(Na_(2)CO_(3))alleviated the competitive absorption between NO_(x) and SO_(2).Moreover,Na_(2)CO_(3) exhibited an enhancement effect on the absorption of NO_(x) and SO_(2) when coupled with *** the increase of oxygen pressure accelerated the oxidation of S(IV),the anti-oxidants can retard the *** measurement of pH suggested the removal efficiency of NO_(x) highly depended on SO_(3)^(2-) concentration rather than *** further investigation of the mechanism suggested the match effect was related to the interaction between ST and the intermediate product of *** match strategy holds a potential for application of SO_(3)^(2-) to denitration.

关键词： Denitration Non-ferrous metal smelting flue gas Oxidation inhibition Oxidation-reduction-absorption Synergistic effect

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Study on Removal of Wastewater Treatment Plant Odorous Gases by Biofilter and Pulse Plasma Discharge Technology 7

Study on Removal of Wastewater Treatment Plant Odorous Gases...

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7th IEEE International Electrical and Energy Conference, CIEEC 2024

作者： Weng, Lingang Luo, Anfei Ye, Lixia Mao, Yiping Bao, Huijie Yang, Haoming Liu, Yujie Zhejiang Doway Advanced Technology Co. Ltd Hangzhou China Zhejiang Engineering Research Center of Odor Control Hangzhou China

ISBN: (纸本)9798350359558

In this study, the odorous gases of a wastewater treatment plant were treated by biofilter and pulsed plasma discharge technology. The principle and deodorization effect of biofilter and pulsed plasma discharge technology were described. The actual operation results showed that by applying the above two technologies, the average removal rate of ammonia (NH3) was 34.6% and 53.6%, the average removal rate of hydrogen sulfide (H2S) was 97.5% and 78.2%, and the average removal rate of odor was 49.5% and 79.2%, respectively. The concentration of NH3, H2S and odor at the outlet met the national emission standards, and the deodorization effect was remarkable at the scene, which could effectively solve the problem of odorous gases pollution. © 2024 IEEE.

关键词： Biofilters

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Parameterization of Nonlinear System Matrices for Implementation of State-Dependent Coefficient control Methods

Parameterization of Nonlinear System Matrices for Implementa...

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2023 International Russian Automation Conference, RusAutoCon 2023

作者： Kabanov, Aleksey A. Sevastopol State University Department of Informatics and Control in Technical Systems Sevastopol Russia Federal Research Center "Computer Science and Control"of Russian Academy of Sciences Moscow Russia

ISBN: (纸本)9798350345551

The research is devoted to the methods of state-dependent coefficient (SDC) for solving nonlinear optimal control problems. An important stage in the application of SDС methods is the parameterization (or even say factorization) of the original nonlinear system to the SDC form. In past studies, it has been shown that for multidimensional systems, the number of such parameterizations is infinite. Choosing the right parameterization can provide better convergence and quality parameters of the corresponding SDC method. This paper presents a number of criteria that can be used for parameterization. By the example of the problem of modeling large-scale monsoon intra-seasonal fluctuations based on the solution of the optimal control problem in a finite time interval, the analysis of the influence of the choice of the appropriate parameterization criterion on the solution of the problem is carried out. © 2023 IEEE.

关键词： Factorization

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Model Predictive control-Based Guidance with Impact Angle Constraints for Visual Quadrotor Interception 9

Model Predictive Control-Based Guidance with Impact Angle Co...

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9th International Conference on control, Decision and Information Technologies, CoDIT 2023

作者： Çetin, Ahmet Talha Koyuncu, Emre Istanbul Technical University Ai Guidance Navigation & Control Research Group Aerospace Research Center Istanbul Turkey Istanbul Technical University Ai Guidance Navigation & Control Research Group Aerospace Research Center Department of Aeronautics Engineering Istanbul Turkey

ISBN: (纸本)9798350311402

With the increase in the popularity of commercial/military drones, anti-drone systems are needed to prevent them from being used for unauthorized purposes. One of the anti-drone methods, especially for urban environments, is the engagement of drones with other drones. This paper focuses on the visual quadrotor interception problem, which solution requires impact angle constraints due to keeping the target visually within the camera frame requirement. Moreover, parallel interceptions (toward the head or back) provide robustness to inevitable visual processing latency compared to lateral engagements. By addressing these issues, the proposed methodology mainly utilizes Model Predictive control (MPC) method with added terminal constraints to satisfy engagement at the desired angle. While formulating the MPC, the objective function in the MPC is modified to reduce the interceptor's requirement for maneuvering at the end of the trajectory. MPC prediction horizon is calculated by considering vehicle limits to satisfy the feasibility of the problem. We have assessed the performance of the proposed guidance methodology for numerous scenarios with both maneuvering and non-maneuvering targets. With the proposed guidance method, engagement is made at desired impact angle along with less maneuvering requirement at the end of the interception. © 2023 IEEE.

关键词： Model predictive control

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Biosynthetic CdS-Thiobacillus thioparus hybrid for solar-driven carbon dioxide fixation

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Nano research 2023年第4期16卷 4531-4538页

作者： Guangyu Liu Feng Gao Hongwei Zhang Lei Wang Chao Gao Yujie Xiong Hefei National Laboratory for Physical Sciences at the Microscale and School of Chemistry and Materials ScienceUniversity of Science and Technology of ChinaHefei 230026China Institute of Energy Hefei Comprehensive National Science Center350 Shushanhu Rd.Hefei 230031China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

Synergistically combining biological whole-cell bacteria with man-made semiconductor materials innovates the way for sustainable solar-driven CO_(2)fixation,showing great promise to break through the bottleneck in traditional chemical photocatalyst ***,most of the biohybrids require uneconomical organic nutrients and anaerobic conditions for the successful cultivation of the bacteria to sustain the CO_(2)fixation,which severely limits their economic viability and applicability for practical ***,we present an inorganic-biological hybrid system composed of obligate autotrophic bacteria Thiobacillus thioparus(***)and CdS nanoparticles(NPs)biologically precipitated on the bacterial surface,which can achieve efficient CO_(2)fixation based entirely on cost-effective inorganic salts and without the restriction of anaerobic *** optimized interface between CdS NPs and *** formed by biological precipitation plays an essential role for *** efficiently receiving photogenerated electrons from CdS NPs and thus changing the autotrophic way from chemoautotroph to *** a result,the *** biohybrid realizes the solar-driven CO_(2)fixation to produce multi-carbon glutamate synthase and biomass under visible-light irradiation with CO_(2)as the only carbon *** work provides significant inspiration for the further exploration of the solar-driven self-replicating biocatalytic system to achieve CO_(2)fixation and conversion.

关键词： biohybrids solar-driven CO_(2)fixation carbon cycle autotrophic bacteria Thiobacillus thioparus cadmium sulfide

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Combination of Zero Common Mode and Spread Spectrum for Four-Module Motor Drive Systems 7

Combination of Zero Common Mode and Spread Spectrum for Four...

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7th IEEE International Electrical and Energy Conference, CIEEC 2024

作者： Gong, Jiwen Liu, Hui Ma, Yafei Jiang, Dong Liu, Hongyang Yang, Guang School of Electrical and Electronics Engineering Huazhong University of Science and Technology Wuhan China Flight Automatic Control Research Institute Xi'an China

ISBN: (纸本)9798350359558

In parallel three-phase inverters, zero common-mode voltage can theoretically be achieved through zero common-mode modulation techniques. The advantage of spread spectrum PWM over constant switching frequency PWM is its ability to eliminate peaks of EMI. Therefore, this paper proposes a modulation method that combines zero common-mode and variable switching frequency to simultaneously reduce common-mode EMI and differential-mode EMI. Under the premise of using the zero common-mode vector, this method uniformly changes the switching period within a certain range, employing a four-module motor as the load for modulation. Simulation results show that this strategy not only achieves zero common-mode voltage but also reduces conducted EMI by more than 20 dB, confirming the effectiveness of the proposed method. © 2024 IEEE.

关键词： Pulse width modulation

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Maternal consumption of glycerol monolaurate optimizes milk fatty acid profile and enhances piglet gut health in association with G protein-coupled receptor 84(GPR84)activation

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Animal Nutrition 2025年第1期20卷 387-403页

作者： Liang Xiong Zhijin Zhang Shiqi Dong Tongbin Lin Xianhuai Yue Fang Chen Wutai Guan Shihai Zhang Guangdong Provincial Key Laboratory of Animal Nutrition Control College of Animal ScienceSouth China Agricultural UniversityGuangzhou 510642China College of Animal Science and National Engineering Research Center for Breeding Swine Industry South China Agricultural UniversityGuangzhou 510642China Guangdong Laboratory for Lingnan Modern Agriculture South China Agricultural UniversityGuangzhou 510642China

This study evaluated the effect of maternal glycerol monolaurate(GML)supplementation during late gestation and lactation on sow reproductive performance,transfer of immunity and redox status,milk fat and fatty acid profile,and fecal *** multiparous sows(LandraceLarge white)were randomly allocated to two treatment groups(with or without 1000 mg/kg GML)with 40 replicates per *** feeding experiment lasted from d 85 of gestation(G85)to d 23 of lactation(L23).The samples were collected on d 1(L1)and 21(L21)of *** results showed that maternal GML supplementation significantly increased litter weight(P=0.002),average daily gain of piglets(P=0.048),and sow average daily feed intake(P=0.032).Compared with CON group,the concentrations of lauric acid(C12:0;P=0.022),C16:0(P=0.001),and total saturated fatty acids(P=0.006)in colostrum as well as C12:0 in L21 milk(P=0.001)were higher in GML ***,the concentrations of immunoglobulin A(IgA)and IgG in colostrum as well as sow and piglet plasma,the total antioxidant capacity and superoxide dismutase activity in sow colostrum were also significantly higher in the GML group(P<0.05).Microbiome results showed that GML addition increased fecal microbial alpha diversity as well as the relative abundances of short chain fatty acids producing bacteria Ruminococcaceae and Parabacteroides;and decreased the harmful Proteobacteria of sows(P<0.05).The Spearman analysis showed that the microbial biomarkers Prevotellaceae,Ruminococcaceae,and Parabacteroides were positively correlated with IgA and IgG of sow plasma and milk(P<0.05).Besides,maternal GML addition up-regulated the relative protein expressions of proliferating cell nuclear antigen,cyclin D1,G proteincoupled receptor 84(GPR84)and phosphatidylinositol 3-kinase(PI3K)/protein kinase B(Akt)pathway in the duodenum and jejunum of ***,current findings suggested that maternal GML supplementation enhanced piglet growth during lactation,w

关键词： Fatty acid Glycerol monolaurate G protein-coupled receptor 84 Immunity transmit Sow

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Recent advances in metal-free CDs/g-C_(3)N_(4) photocatalysts:Synthetic strategies,mechanism insight,and applications

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Journal of Materials science & Technology 2023年第19期150卷 11-26页

作者： Xingxing Yang Lina Sheng Yongli Ye Jiadi Sun Zaijun Li Xiao Ning Jin Cao Xiulan Sun State Key Laboratory of Food Science and Technology School of Food Science and TechnologyCollaborative Innovation Center of Food Safety and Quality ControlJiangnan UniversityWuxi 214122China Yixing Institute of Food and Biotechnology Co. LtdYixing 214200China School of Chemical and Material Engineering Jiangnan UniversityWuxi 214122China National Institutes for Food and Drug Control Beijing 100050China

Carbon dots/graphite carbon nitride(CDs/g-C_(3)N_(4)),a novel composite photocatalyst,has shown great po-tential for applications in energy regeneration and environmental remediation owing to its following advantages:metal-free,low cost,easily tunable,and excellent photocatalytic ***,we reviewed the development of synthetic strategies,photocatalytic enhancement mechanisms,and pho-tocatalytic applications of CDs/g-C_(3)N_(4) in this ***,the three composite strategies of CDs and g-C_(3)N_(4)-self-assembly,solvothermal,and calcination polymerization are outlined,and their advantages and disadvantages are described in ***,the photocatalytic enhancement mechanism of the com-posite strategies was elucidated according to the variation trends of CDs/g-C_(3)N_(4) band structure,electronic properties,light absorption range,and interfacial charge ***,the applications of CDs/g-C_(3)N_(4) in hydrogen evolution,pollutant degradation,CO_(2) reduction,and bacterial disinfection in recent years are reviewed ***,the current obstacles and future research directions of CDs/g-C_(3)N_(4) are discussed from the perspective of preparation technology and practical applications,respectively.

关键词： Photocatalysis Graphite carbon nitride Carbon dots Synthetic strategy Photocatalytic application

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