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An orthogonal dual-regulation strategy for sensitive biosensing applications

national science Review 2022年第9期9卷 246-259页

作者： Xian Yang Jinhua Wang Zhongfeng Gao Weiqi Zhang Hai Zhu Yongjun Song Quan Wang Mingjie Liu Lei Jiang Yu Huang Fan Xia State Key Laboratory of Biogeology and Environmental Geology Engineering Research Center of Nano-Geomaterials of Ministry of EducationFaculty of Material Science and ChemistryChina University of Geosciences State Grid Integrated Energy Service Group CO.LTD. State Key Laboratory of Proteomics Beijing Proteome Research Center National Center for Protein Sciences(Beijing)Beijing Institute of Lifeomics Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers College of Chemistry and Chemical Engineering Linyi University Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of the Ministry of Education School of Chemistry and EnvironmentBeihang University Zhejiang Institute China University of Geosciences

Biosensing systems based on controllable motion behaviors of droplets have attracted extensive attention,but still face challenges of insufficient sensitivity and uncontrollable dynamic range due to imprecise manipulation of droplet motion on the ***,we report an orthogonal dual-regulation strategy for precise motion control of droplets and we demonstrate its utility as a sensitive sensing system with controllable dynamic ranges of sensing for adenosine triphosphate,miRNA,thrombin and kanamycin,as well as discrimination of five kinds of D *** endowed a DNA-contained bio-droplet sliding on a lubricant-infused structural surface with micro-grooves to separately adjust the resistance from liquid phase and solid *** resistance from liquid phase mainly depended on hydrophobic interaction between DNA and lubricant,which can be finely tuned by different DNA's average chain ***,the resistance from solid surface was determined by the energy barrier from the periodic micro-grooves,which can be adjusted by varying the droplet's sliding direction on the *** hydrophobic interaction is conformed to be orthogonal to the micro-grooves' anisotropic resistance by three different *** orthogonal dual-regulation strategy thus demonstrated its ability to precisely control bio-droplets' motion behaviors and sensitive detection with adjustable dynamic ranges for various *** dual-regulation strategy will provide significant insights for super-wettable biosensors,visual inspection and beyond.

关键词： motion behavior sensitive detection dynamic range hydrophobic interaction anisotropic resistance

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Fixed-Time Distributed Optimization for Networked Multi-Agent Systems with Unknown Disturbances Over Signed Graph

Fixed-Time Distributed Optimization for Networked Multi-Agen...

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7th International Conference on Electronics technology, ICET 2024

作者： Qing, Xian Qin, Kaiyu Li, Zhiqiang Shi, Mengji Lin, Boxian Dai, Yuehong University of Electronic Science and Technology of China School of Aeronautics and Astronautics Chengdu China Aircraft Swarm Intelligent Sensing and Cooperative Control Key Laboratory of Sichuan Province Chengdu China National Laboratory on Adaptive Optics Chengdu610209 China

ISBN: (纸本)9798350363951

In this paper, the distributed optimization problem for networked multi-agent systems with unknown disturbances over signed graph is addressed. A novel robust fixed-time distributed optimization scheme is proposed. This scheme is divided into two components: a distributed observer-based optimization algorithm and a robust tracking controller. The distributed observer-based optimization algorithm makes the virtual state of each agent achieve bipartite consensus in fixed-time and obtain the optimal solution of the global convex objective function under the signed graph. The robust tracking controller is designed to eliminate the effect of external bounded disturbance, so that the actual state of the agent converges to the virtual state. The distributed optimization scheme can suppress the disturbances and obtain the optimal solution, and the convergence time is independent of the initial values of agents. Finally, some simulation results are given to verify the proposed fixed-time distributed optimization scheme. © 2024 IEEE.

关键词： Multi agent systems

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Research on Lfp Battery Balancing Strategy for the Hybrid Energy Storage System

SSRN

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SSRN 2024年

作者： Zhou, Ren Lu, Junyong Wu, Yiting Liu, Yingquan Yan, Kangwei National Key Laboratory of Electromagnetic Energy Naval University of Engineering Wuhan430033 China National Key Laboratory of Science and Technology on Vessel Integrated Power System China

For the problem of consistency decline in the long-term use of battery packs for the hybrid energy storage system, a dynamic timing adjustment balancing strategy is proposed based on the charge-discharge topology. Compared with the traditional balancing strategy, the dynamic timing adjustment balance strategy is more suitable for the transient high-frequency pulse and high-power output of the hybrid energy storage system. It gives full play to the pulse output adjustment function of the integrated charge-discharge topology. The advantages of the strategy include improving the balance between the battery packs, prolonging the service life of the battery packs, and improving the continuous work capability of the system. Combined with the work condition of the hybrid energy storage system, the balance control model is established, and cycle charge-discharge test platform of battery packs is built. The effectiveness and advantage of the balance strategy of dynamic timing adjustment is verified by the experiment and simulation. © 2024, The Authors. All rights reserved.

关键词： Topology

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Modelling of Self-Heating Effect of SAW Devices on LiTaO3/SiO2/Si Substrates

Modelling of Self-Heating Effect of SAW Devices on LiTaO3/Si...

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2023 IEEE International Ultrasonics Symposium, IUS 2023

作者： Yao, Hulin Zhang, Shibin Wu, Jinbo Zhang, Liping Zheng, Pengcheng Fang, Xiaoli Sun, Mijing Sui, Dongchen Ou, Xin Shanghai Institute of Microsystem and Information Technology National Key Laboratory of Materials for Integrated Circuits Shanghai200050 China University of Chinese Academy of Sciences The Center of Materials Science and Optoelectronics Engineering Beijing100049 China

ISBN: (纸本)9798350346459

This work proposed an equivalent layer for thermal characteristics of interdigital transducers (IDTs) based on the definition of thermal resistance of heat transfer. The equivalent layer is modeled with the derived anisotropic equivalent thermal conductivities at X, Y and Z directions. To validate the equivalence, a simulation procedure with two discrete steps was carried out, and the temperature distribution at steady state was confirmed to be the same between the unit cell model with the equivalent layer and the unit cell model with conventional real structure of IDT layer. Lastly, a 3D full-size model of a filter consisting of seven resonators was simulated for observation of the self-heating effect. © 2023 IEEE.

关键词： Finite element method

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Sleep Promotion by 3-Hydroxy-4-Iminobutyric Acid in Walnut Diaphragma juglandis Fructus

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Research 2024年第2期6卷 613-627页

作者： Jian Ji Yongli Ye Lina Sheng Jiadi Sun Qianqian Hong Chang Liu Jun Ding Shuxiang Geng Deping Xu Yinzhi Zhang Xiulan Sun State Key Laboratory of Food Science and Technology School of Food Science and TechnologyNational Engineering Research Center for Functional FoodSynergetic Innovation Center of Food Safety and Quality ControlJiangnan UniversityLihu Avenue 1800WuxiJiangsu 214100P.R.China College of Food Science and Pharmacy Xinjang Agricultural UniversityNo.311 Nongda Dong RoadUrumqiXinjangUygur Autonomous Region 830052P.R.China Department of Chemistry Wuhan UniversityWuhanHubei 430072P.R.China Yunnan Academy of Forestry and Grassland KunmingYunnan 650201P.R.China

Insufficient sleep can produce a multitude of deleterious repercussions on various domains of human ***,the walnut(Juglans mandshurica)confers numerous salutary biological activities pertaining to ***,the sedative and hypnotic capacities of walnut's functional constituents remain *** this investigation,we analyzed the sedative and hypnotic components of the walnut Diaphragma juglandis fructus and innovatively discovered a compound,defined as 3-hydroxy-4-iminobutyric acid(HIBA),which disrupts motor activity and enhances sleep duration by regulating the neurotransmitters(GABA,DA,etc.)within the brain and serum of ***,a metabolomics approach of the serum,basal ganglia,hypothalamus,and hippocampus as well as the gut microbiota was undertaken to unravel the underlying molecular mechanisms of sleep *** data reveal that HIBA can regulate the metabolism of basal ganglia(sphingolipids,acylcarnitines,etc.),possibly in relation to HIBA's influence on the gut microbiome(Muribaculum,Bacteroides,Lactobacillus,etc.).Therefore,we introduce a novel natural product,HIBA,and explicate the modulation of sleep promotion in mice based on the microbiota-gut-brain *** study contributes fresh insights toward natural product-based sleep research.

关键词： metabolism promotion insight

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Operando reconstruction-induced CO_(2)reduction activity and selectivity for cobalt-based photocatalysis

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Nano Research 2023年第4期16卷 4812-4820页

作者： Kun Zhao Weiying Pang Shuaiyu Jiang Canyu Hu Porun Liu Dandan Cui Xuefei An Baojuan Tian Chao Gao Pan Zhang Meng Tian Dong Fu Huijun Zhao Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control School of Environmental Science and EngineeringNorth China Electric Power UniversityBaoding 071003China Interdisciplinary Center for Fundamental and Frontier Sciences Nanjing University of Science and TechnologyJiangyin 214443China Centre for Catalysis and Clean Energy Griffith University Gold Coast CampusLD 4222Australia Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovative Center of Chemistry for Energy MaterialsSchool of Chemistry and Materials Scienceand National Synchrotron Radiation LaboratoryUniversity of Science and Technology of ChinaHefei 230026China School of Physics and BUAA-UOW Joint Research Centre Beihang UniversityBeijing 100191China

The oxygen atom coordination inducing the structure reconstruction of the catalytic site is identified and recognized ambiguously,which is related to accurately declare the mechanism in a dynamic catalytic ***,we demonstrated that the reconstructed catalytic sites would lead to a remarkable performance for photocatalytic CO_(2)*** the initial 4-cycles testing,the in-situ formation of CoOx active sites on the Co(CoP)surface performed an increasing transient activity and selectivity toward CO *** formation of reconstructive Co-O bond and the appearance of intermediate specie CO were simultaneously observed by the pre-operando Raman,revealing the dynamic relationship between catalytic site structure and the photocatalytic ***,density functional theory calculations showed that the electronic structure of the reconstructive surface sites could modulate the ability of CO_(2)adsorption and CO *** reduced barrier energy for the rate-determining step finally improved the activity and selectivity of CO_(2)reduction.

关键词： surface reconstruction unsaturated Co-Ox catalytic site balanced relationship photocatalytic CO_(2)reduction

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Optimization of Full 3D Hierarchical Cascading Technique for Surface Acoustic Wave Device Simulations

Optimization of Full 3D Hierarchical Cascading Technique for...

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2023 IEEE International Ultrasonics Symposium, IUS 2023

作者： Sui, Dongchen Zhang, Shibin Yao, Hulin Zheng, Pengcheng Sun, Mijing Fang, Xiaoli Zhang, Liping Wu, Jinbo Zhou, Min Ou, Xin Shanghai Institute of Microsystem and Information Technology National Key Laboratory of Materials for Integrated Circuits Shanghai200050 China University of Chinese Academy of Sciences The Center of Materials Science and Optoelectronics Engineering Beijing100049 China

ISBN: (纸本)9798350346459

This work demonstrates a time-optimized hierarchical cascading technique (HCT) for full 3D surface acoustic wave (SAW) device simulations. Firstly, we analyze the multidirectional cascade for full 3D HCT. Then based on the process, it is demonstrated that how the cascading order in X and Y direction influences the time and memory cost of the cascading process. Then the computing time of each step are recorded to verify the analysis. Based on the full 3D simulation, the 'Y→X cascade' saves 62.3% time and 30.1% memory than 'X→Y cascade' in the cascading process. Finally, the optimized 'Z → Y → X' cascading method is proposed, which not only reduces the time and memory cost but also reveals more details of the resonator in the simulation. © 2023 IEEE.

关键词： Finite element method

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Surfactant-assisted removal of 2,4-dichlorophenol from soil by zero-valent Fe/Cu activated persulfate

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Chinese Journal of Chemical Engineering 2022年第4期35卷 447-455页

作者： Ling Xu Ji Li Wenbin Zeng Kai Liu Yibing Ma Liping Fang Chenlu Shi Faculty of Material Science and Chemistry China University of GeosciencesWuhan 430074China Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management Institute of Eco-environmental and Soil SciencesGuangdong Academy of SciencesGuangzhou 510650China National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China Guangzhou 510650China Macao Environmental Research Institute Macao University of Science and TechnologyTaipaMacaoChina

The organic compounds contaminated soil substantially threatens the growth of plants and food *** this study,we synthesis zero-valent bimetallic Fe/Cu catalysts for the degradation of 2,4-dichlorophenol(DCP)in soils with persulfate(PS)in combination of organic surfactants and exploring the main environmental impact *** kinetic experiments show that the 5%(mass)dosage of Fe/Cu exhibits a higher degradation efficiency(86%)of DCP in soils,and the degradation efficiency of DCP increases with the increase of the initial PS *** conditions are favorable for the DCP degradation in *** importantly,the addition of Tween-80,and Triton-100 can obviously desorb DCP from the soil surface,which enhances the degradation efficiency of DCP in soils by Fe/Cu and PS reaction ***,the Quenching experiments demonstrate that SO_(4)^(-1)·and·OH are the predominant radicals for the degradation of DCP during the Fe/Cu and PS reaction system as well as non-radical also *** findings of this work provide an effective method for remediating DCP from soils.

关键词： Zero-valent iron and copper Advanced oxidation process Persulfate Chlorinated organic pollutants Surfactant

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Resistance to salt stresses by aerobic granular sludge:sludge property and microbial community

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Frontiers of Environmental science & Engineering 2024年第8期18卷 107-116页

作者： Xiao Wu Hui Li Meili Wang Tianying Zhang Jiawei Li Yongdi Liu Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission School of Chemistry and EnvironmentSouthwest Minzu UniversityChengdu 610041China Institute for Environmental Pollution and Health School of Environmental and Chemical EngineeringShanghai UniversityShanghai 200444China School of Life Sciences Southwest UniversityChongqing 400715China State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process School of Resources and Environmental EngineeringEast China University of Science and TechnologyShanghai 200237China Institute of Qinghai-Tibetan Plateau Southwest Minzu UniversityChengdu 610041China

Saline wastewater is regarded as a challenge for wastewater treatment plants because high-salinity conditions negatively affect on traditional biological *** granular sludge(AGS)has gained attention as a promising technology for saline wastewater treatment because of its compact structure and the ability to withstand toxic ***,this study investigated the saltresistance performance,sludge properties and microbial community of AGS under low-salinity and high-salinity conditions,with the saline concentrations ranging from 0 to 50 g/*** results showed that AGS could withstand long-term saline stresses,and the maximum salinity reached 50 g/L within 113 *** salinities of 10,30,and 50 g/L,the chemical oxygen demand(COD)removal efficiencies were 90.3%,88.0%and 78.0%,*** also its maintained strength and aggregation at salinities of 10 and 30 g/*** of extracellular polymeric substances(EPS)by non-halophilic bacteria that enhanced sludge *** compact structure that ensured the microorganisms bioactivity helped to remove organic matters under salinities of 10 and 30 g/*** a salinity of 50 g/L,moderately halophilic bacteria,including Salinicola,Thioclava,Idiomarina and Albirhodobacter,prevailed in the *** dominant microbial communities shifted to moderately halophilic bacteria,which could maintain aerobic granular stabilization and remove organic matters under 50 g/L *** results in this study provide a further explanation for the long-term operation of AGS for treating saline wastewater at different *** is hoped that this work could bring some clues for the mystery of salt-resistance mechanisms.

关键词： Aerobic granular sludge Long-term saline stresses Performance Sludge property Microbial community

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Initial carbon release characteristics, mechanisms and denitrification performance of a novel slow release carbon source

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Journal of Environmental sciences 2022年第8期34卷 32-45页

作者： Congyu Li Haiyan Wang Guokai Yan Weiyang Dong Zhaosheng Chu Huan Wang Yang Chang Yu Ling Yanjie Zhang State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China Research Center of Environmental Pollution Control Technology Chinese Research Academy of Environmental ScienceBeijing 100012China National Engineering Laboratory for Lake Pollution Control and Ecological Restoration Chinese Research Academy of Environmental SciencesBeijing 100012China

External carbon source addition is one of the effective methods for the treatment of wastewater with low carbon to nitrogen ratio(C/N). Compared with fast-release liquid carbon sources, slow-release solid carbon sources are more suitable for the denitrification process. A novel slow-release solid carbon source(corncob-polyvinyl alcohol sodium alginatepoly-caprolactone, i.e. CPSP) was prepared using corn cob(CC) and poly-caprolactone with polyvinyl alcohol sodium alginate as hybrid scaffold. The physical properties and carbon release characteristics of CPSP and three other carbon sources were compared. CPSP had stable framework and good carbon release performance, which followed the second order release equation. The formic acid, acetic acid, propionic acid and butyric acid released from CPSP accounted for 8.27% ± 1.66 %, 56.48% ± 3.71 %, 18.46% ± 2.69% and 16.79% ± 3.02% of the total released acids respectively. The start-up period of CPSP was shorter than that of the other carbon sources in denitrification experiment, and no COD pollution was observed in the start-up phase(25–72 h) and stable phase(73–240 hr). The composition and structure of the dissolved organic compounds released by CPSP and other carbon sources were analyzed by UV-Vis absorption spectroscopy and three-dimensional fluorescence spectroscopy,which indicated that CPSP was more suitable for denitrification than the other studied carbon sources.

关键词： Novel slow-release carbon source Carbon release characteristics Denitrification Dissolved organic matter Corn cob

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