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| 1 | Recent advances in low-dimensional semiconductor nanomaterials and their applications in high-performance photodetectors显示文摘Low-dimensional(including two-dimensional[2D],one-dimensional[1D],and zero-dimensional[0D])semiconductor materials have great potential in electronic/optoelectronic applications due to their unique structure and characteristics.Many 2D(such as transition metal dichalcogenides and black phosphorus)and 1D(such as NWs)materials have demonstrated superior performance in field effect transistors,photodetectors(PDs),and some flexible devices.And in some hybrid structures of 0D materials and 1D or 2D materials,the modification of 1D and 2D devices by 0D materials is embodied.This type of hybrid heterostructure has a larger performance optimization compared with the original.In the application of PDs,the variety of lowdimensional materials and properties enable wide-spectrum detection from ultraviolet UV to infrared,which provide a potential option for PDs under various conditions.For flexible electronic devices,high performance and mechanical stability are two important features.Low-dimensional materials offer unparalleled advantages in flexible devices.In this review,we will focus on the various low-dimensional materials that have been extensively studied and their applications in the electronics/optoelectronic and flexible electronics.From the composition and lattice structure of materials(including alloys)to the construction of various devices and heterostructures,we will introduce their application and recent development under various conditions.These works can provide valuable guidance for the construction and application of more highperformance and multifunctional devices. | Jingzhi Fang Ziqi Zhou Mengqi Xiao Zheng Lou Zhongming Wei Guozhen Shen | 2020 | InfoMat2020,2,2: | 7 |
| 2 | Performance and microbial community of a membrane bioreactor system--Treating wastewater from ethanol fermentation of food waste显示文摘In this study, a lab-scale biological anaerobic/anaerobic/anoxic/membrane bioreactor(A_-~3MBR) was designed to treat wastewater from the ethanol fermentation of food waste,a promising way for the disposal of food waste and reclamation of resources. The 454 pyrosequencing technique was used to investigate the composition of the microbial community in the treatment system. The system yielded a stable effluent concentration of chemical oxygen demand(202 ± 23 mg/L), total nitrogen(62.1 ± 7.1 mg/L), ammonia(0.3 ±0.13 mg/L) and total phosphorus(8.3 ± 0.9 mg/L), and the reactors played different roles in specific pollutant removal. The exploration of the microbial community in the system revealed that:(1) the microbial diversity of anaerobic reactors A_1 and A_2, in which organic pollutants were massively degraded, was much higher than that in anoxic A_3 and aerobic MBR;(2) although the community composition in each reactor was quite different, bacteria assigned to the classes Clostridia, Bacteroidia, and Synergistia were important and common microorganisms for organic pollutant degradation in the anaerobic units, and bacteria from Alphaproteobacteria and Betaproteobacteria were the dominant microbial population in A_3 and MBR;(3) the taxon identification indicated that Arcobacter in the anaerobic reactors and Thauera in the anoxic reactor were two representative genera in the biological process. Our results proved that the biological A_-~3MBR process is an alternative technique for treating wastewater from food waste. | Xiaobiao Zhu Mengqi Li Wei Zheng Rui Liu Lujun Chen | 2017 | Journal of Environmental Sciences2017,29,3: | 4 |
| 3 | Nonvolatile memristor based on heterostructure of 2D room-temperature ferroelectric α-In2Se3 and WSe2显示文摘Two-dimensional(2D) ferroelectricity is considered to have significant potential for information storage in the future. Semiconducting ferroelectrics that are stable at room temperature afford many possibilities for the assembly of various high-performance heterostructures and fabricating multifuntional devices.Herein, we report the synthesis of a stable van der Waals(vd W) single-crystal semiconductor α-In2 Se3.Piezoresponse force microscopy(PFM) measurements demonstrated the out-of-plane ferroelectricity in ~15 layers α-In2 Se3 at room temperature. Both ferroelectric domains with opposite polarization and the tested amplitude and phase curve proved that this semiconductor exhibits hysteresis behavior during polarization.In the α-In2Se3/WSe2 vertical heterostructure device, the switchable diode effect and nonvolatile memory phenomenon showed a high on/off ratio and a small switching voltage. The distinct resistance switches were further analyzed by band alignment of the heterostructure under different polarizations by first principle calculations. Nonvolatile memory based on vd W ferroelectric heterostructure could provide a novel platform for developing 2 D room-temperature ferroelectrics in information storage. | Huai YANG Mengqi XIAO Yu CUI Longfei PAN Kai ZHAO Zhongming WEI | 2019 | Science China(Information Sciences)2019,62,12: | 3 |
| 4 | GCN2 deficiency protects mice from denervation-induced skeletal muscle atrophy via inhibiting FoxO3a nuclear translocation显示文摘 | Yuting Guo Huiwen Wang Yinglong Tang Yue Wang Mengqi Zhang Zhiguang Yang Eric Nyirimigabo Bin Wei Zhongbing Lu Guangju Ji | 2018 | Protein & Cell2018,9,11: | 3 |
| 5 | The performance and mechanism of iron-mediated chemical oxidation:Advances in hydrogen peroxide,persulfate and percarbonate oxidation显示文摘Many studies have successfully built iron-mediatedmaterials to activate or catalyze Fentonlike reactions,with applications in water and wastewater treatment being investigated.However,the developed materials are rarely compared with each other regarding their performance of organic contaminant removal.In this review,the recent advances of Fentonlike processes in homogeneous and heterogeneous ways are summarized,especially the performance and mechanism of activators including ferrous iron,zero valent iron,iron oxides,iron-loaded carbon,zeolite,and metal organic framework materials.Also,this work mainly compares three O-O bond containing oxidants including hydrogen dioxide,persulfate,and percarbonate,which are environmental-friendly oxidants and feasible for in-situ chemical oxidation.The influence of reaction conditions,catalyst properties and benefits are analyzed and compared.In addition,the challenges and strategies of these oxidants in applications and the major mechanisms of the oxidation process have been discussed.This work can help understand the mechanistic insights of variable Fenton-like reactions,the role of emerging iron-based materials,and provide guidance for choosing appropriate technologies when facing real-world water and wastewater applications. | Mengqi Han Hui Wang Wei Jin Wenhai Chu Zuxin Xu | 2023 | Journal of Environmental Sciences2023,,6: | 2 |
| 6 | Ultrastretchable and wearable conductive multifilament enabled by buckled polypyrrole structure in parallel显示文摘Stretchable conductive fibers have attracted much attention due to their potential use in wearable electronics.However,the ultrahigh strain insensitive conductivity is hindered by mechanical mismatch in Young’s modulus and failure of stretchable structures under large deformation.This challenge is addressed with a conductive and elastic multifilament made of the polyurethane monofilaments that are surface-coated with buckled polypyrrole(PPy)of which flexibility is improved by sodium sulfosalicylate.Such parallel conductive monofilaments with PPy buckling on surface reduce the influence of cracks in the conductive coating on the overall conductivity,displaying an ultra-high strain insensitive behavior(quality factor Q=10.9).Remarkably,various complex forms of wearable electronic textiles made by this conductive multifilament maintain the strain-insensitive behavior of the original multifilament,even upon the large deformation of human joint.This multifilament with wrinkled PPy has attractive advantages in the application of super-stretched wearable electronic devices. | Yimeng Li Yaya Gao Lizhen Lan Qian Zhang Leqian Wei Mengqi Shan Lamei Guo Fujun Wang Jifu Mao Ze Zhang Lu Wang | 2022 | npj Flexible Electronics2022,6,1: | 1 |
| 7 | Identification of serum metabolites enhancing inflammatory responses in COVID-19显示文摘Coronavirus disease 2019(COVID-19),caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),is characterized by a strong production of inflammatory cytokines such as TNF and IL-6,which underlie the severity of the disease.However,the molecular mechanisms responsible for such a strong immune response remains unclear.Here,utilizing targeted tandem mass spectrometry to analyze serum metabolome and lipidome in COVID-19 patients at different temporal stages,we identified that 611 metabolites(of 1,039)were significantly altered in COVID-19 patients.Among them,two metabolites,agmatine and putrescine,were prominently elevated in the serum of patients;and 2-quinolinecarboxylate was changed in a biphasic manner,elevated during early COVID-19 infection but levelled off.When tested in mouse embryonic fibroblasts(MEFs)and macrophages,these 3 metabolites were found to activate the NF-κB pathway that plays a pivotal role in governing cytokine production.Importantly,these metabolites were each able to cause strong increase of TNF and IL-6 levels when administered to wildtype mice,but not in the mice lacking NF-κB.Intriguingly,these metabolites have little effects on the activation of interferon regulatory factors(IRFs)for the production of type I interferons(IFNs)for antiviral defenses.These data suggest that circulating metabolites resulting from COVID-19 infection may act as effectors to elicit the peculiar systemic inflammatory responses,exhibiting severely strong proinflammatory cytokine production with limited induction of the interferons.Our study may provide a rationale for development of drugs to alleviate inflammation in COVID-19 patients. | Chen-Song Zhang Bingchang Zhang Mengqi Li Xiaoyan Wei Kai Gong Zhiyong Li Xiangyang Yao Jianfeng Wu Cixiong Zhang Mingxia Zhu Lei Zhang Xiufeng Sun Yi-Hong Zhan Zhengye Jiang Wenpeng Zhao Wei Zhong Xinguo Zhuang Dawang Zhou Hai-Long Piao Sheng-Cai Lin Zhanxiang Wang | 2022 | Science China(Life Sciences)2022,65,10: | 1 |
| 8 | Operation Optimization of Liquid Cooling Systems in Data Centers by the Heat Current Method and Artificial Neural Network显示文摘Liquid cooling systems in data centers have been attracting more attentions due to its better cooling capability and less energy consumption. In order to propose an effective optimization method for the operation of indirect liquid cooling systems, this paper first constructs an experiment platform and applies the heat current method to build the global heat transfer constraints of the whole system. Particularly, the thermal conductance of each heat exchanger under different working conditions is predicted by the Artificial Neural Networks(ANN) trained by the historical data. On this basis, combining the heat transfer and fluid flow constraints together with the Lagrange multiplier method builds the optimization model with the objective of minimum pumping power consumption(PPC), solving which by the solution strategy designed obtains the optimal frequencies of the variable frequency pumps(VFPs). Operating with the optimal and other feasible operating conditions validates the optimization model. Meanwhile, the experiments with variable heat loads and flow resistances provide some guidelines for the optimal system operation. For instance, to address heat load increase of a branch, it needs to increase the frequencies of the VFPs, not only the corresponding hot loop but also the whole cold loop. | SHAO Wei CHEN Qun HE Kelun ZHANG Mengqi | 2020 | Journal of Thermal Science2020,29,4: | 1 |
| 9 | Interleukin-13 promotes cellular senescence through inducing mitochondrial dysfunction in IgG4-related sialadenitis显示文摘Immunoglobulin G4-related sialadenitis(IgG4-RS)is an immune-mediated fibro-inflammatory disease and the pathogenesis is still not fully understood.The aim of this study was to explore the role and mechanism of interleukin-13(IL-13)in the cellular senescence during the progress of IgG4-RS.We found that the expression of IL-13 and IL-13 receptorα1(IL-13Rα1)as well as the number of senescent cells were significantly higher in the submandibular glands(SMGs)of IgG4-RS patients.IL-13 directly induced senescence as shown by the elevated activity of senescence-associatedβ-galactosidase(SA-β-gal),the decreased cell proliferation,and the upregulation of senescence markers(p53 and p16)and senescence-associated secretory phenotype(SASP)factors(IL-1βand IL-6)in SMG-C6 cells.Mechanistically,IL-13 increased the level of phosphorylated signal transducer and activator of transcription 6(p-STAT6)and mitochondrial-reactive oxygen species(mt ROS),while decreased the mitochondrial membrane potential,ATP level,and the expression and activity of superoxide dismutase 2(SOD2).Notably,the IL-13-induced cellular senescence and mitochondrial dysfunction could be inhibited by pretreatment with either STAT6 inhibitor AS1517499 or mitochondria-targeted ROS scavenger Mito TEMPO.Moreover,IL-13 increased the interaction between p-STAT6 and c AMP-response element binding protein(CREB)-binding protein(CBP)and decreased the transcriptional activity of CREB on SOD2.Taken together,our findings revealed a critical role of IL-13 in the induction of salivary gland epithelial cell senescence through the elevated mitochondrial oxidative stress in a STAT6–CREB–SOD2-dependent pathway in IgG4-RS. | Mengqi Zhu Sainan Min Xiangdi Mao Yuan Zhou Yan Zhang Wei Li Li Li Liling Wu Xin Cong Guangyan Yu | 2022 | International Journal of Oral Science2022,14,3: | 1 |
| 10 | Conductive fibers for biomedical applications显示文摘Bioelectricity has been stated as a key factor in regulating cell activity and tissue function in electroactive tissues.Thus,various biomedical electronic constructs have been developed to interfere with cell behaviors to promote tissue regeneration,or to interface with cells or tissue/organ surfaces to acquire physiological status via electrical signals.Benefiting from the outstanding advantages of flexibility,structural diversity,customizable mechanical properties,and tunable distribution of conductive components,conductive fibers are able to avoid the damage-inducing mechanical mismatch between the construct and the biological environment,in return to ensure stable functioning of such constructs during physiological deformation.Herein,this review starts by presenting current fabrication technologies of conductive fibers including wet spinning,microfluidic spinning,electrospinning and 3D printing as well as surface modification on fibers and fiber assemblies.To provide an update on the biomedical applications of conductive fibers and fiber assemblies,we further elaborate conductive fibrous constructs utilized in tissue engineering and regeneration,implantable healthcare bioelectronics,and wearable healthcare bioelectronics.To conclude,current challenges and future perspectives of biomedical electronic constructs built by conductive fibers are discussed. | Leqian Wei Shasha Wang Mengqi Shan Yimeng Li Yongliang Wang Fujun Wang Lu Wang Jifu Mao | 2023 | Bioactive Materials2023,,4: | 1 |
| 11 | Arbitrarily polarized bound states in the continuum with twisted photonic crystal slabs显示文摘Arbitrary polarized vortex beam induced by polarization singularity offers a new platform for both classical optics and quantum entanglement applications.Bound states in the continuum(BICs)have been demonstrated to be associated with topological charge and vortex polarization singularities in momentum space.For conventional symmetric photonic crystal slabs(PhCSs),BIC is enclosed by linearly polarized far fields with winding angle of 2π,which is unfavorable for high-capacity and multi-functionality integration-optics applications.Here,we show that by breakingσz-symmetry of the PhCS,asymmetry in upward and downward directions and arbitrarily polarized BIC can be realized with a bilayer-twisted PhCS.It exhibits elliptical polarization states with constant ellipticity angle at every point in momentum space within the vicinity of BIC.The topological nature of BIC reflects on the orientation angle of polarization state,with a topological charge of 1 for any value of ellipticity angle.Full coverage of Poincarésphere(i.e.,-π/4≤X≤4 and-π/2≤ψ≤π/2)and higher-order Poincarésphere can be realized by tailoring the twist angles.Our findings may open up new avenues for applications in structured light,quantum optics,and twistronics for photons. | Haoye Qin Zengping Su Mengqi Liu Yixuan Zeng Man-Chung Tang Mengyao Li Yuzhi Shi Wei Huang Cheng-Wei Qiu Qinghua Song | 2023 | Light(Science & Applications)2023,12,4: | 0 |
| 12 | Air exposure towards stable Li/Li_(10)GeP_(2)S_(12) interface for all-solid-state lithium batteries显示文摘Moist air is a great challenge for manufacturing sulfide-based all-solid-state lithium batteries as the water in air will lead to severe decomposition of sulfide electrolytes and release H2S gas.However,different with direct reaction with water,short-period air exposure of Li_(10)GeP_(2)S_(12) sulfide electrolyte with controlled humidity can greatly enhance the stability of Li_(10)GeP_(2)S_(12) against lithium metal,thus realizing stable Li_(10)GeP_(2)S_(12) based all-solid-state lithium metal batteries.During air exposure,partial hydrolysis reaction occurs on the surface of Li_(10)GeP_(2)S_(12) pellets,rapidly generating a protective decomposition layer of Li4P2S6,GeS2 and Li2HPO3 in dozens of seconds.This ionically conductive but electronically insulation protecting layer can effectively prevent the severe interface reaction between Li_(10)GeP_(2)S_(12) and lithium metal during electrochemical cycling.The Li/40s-air-exposed Li_(10)GeP_(2)S_(12)/Li cell shows long cycling stability for 1000 h.And the LiCoO_(2)/40s-air-exposed Li_(10)GeP_(2)S_(12)/Li batteries present good rate capability and long cyclic performances,showing capacity retention of 80%after 100 cycles. | Wei Weng Dong Zhou Gaozhan Liu Lin Shen Mengqi Li Xinshuang Chang Xiayin Yao | 2022 | Materials Futures2022,1,2: | 0 |
| 13 | Photovoltaic-powered supercapacitors for driving overall water splitting:A dual-modulated 3D architecture显示文摘Due to the growing demand for clean and renewable hydrogen fuel,there has been a surge of interest in electrocatalytic water-splitting devices driven by renewable energy sources.However,the feasibility of self-driven water splitting is limited by inefficient connections between functional modules,lack of highly active and stable electrocatalysts,and intermittent and unpredictable renewable energy supply.Herein,we construct a dualmodulated three-dimensional(3D)NiCo_(2)O_(4)@NiCo_(2)S_(4)(denoted as NCONCS)heterostructure deposited on nickel foam as a multifunctional electrode for electrocatalytic water splitting driven by photovoltaic-powered supercapacitors.Due to a stable 3D architecture configuration,abundant active sites,efficient charge transfer,and tuned interface properties,the NCONCS delivers a high specific capacity and rate performance for supercapacitors.A twoelectrode electrolyzer assembled with the NCONCS as both the anode and the cathode only requires a low cell voltage of 1.47 V to achieve a current density of 10 mA cm^(−2) in alkaline electrolyte,which outperforms the state-of-the-art bifunctional electrocatalysts.Theoretical calculations suggest that the generated heterointerfaces in NCONCS improve the surface binding capability of reaction intermediates while regulating the local electronic structures,which thus accelerates the reaction kinetics of water electrolysis.As a proof of concept,an integrated configuration comprising a two-electrode electrolyzer driven by two series-connected supercapacitors charged by a solar cell delivers a high product yield with superior durability. | Zixu Sun Lijuan Sun See Wee Koh Junyu Ge Jipeng Fei Mengqi Yao Wei Hong Shude Liu Yusuke Yamauchi Hong Li | 2022 | Carbon Energy2022,4,6: | 0 |
| 14 | Microstructure Evolution and Its Effect on Mechanical Properties in an Electron Beam Weldedβ-Solidified TiAl Alloy显示文摘TiAl alloys are susceptible to cracks during electron beam welding because their limited ductility cannot accommodate the stress generated under fast cooling rate.In this work,pre-heating and post-heating via defocused electron beam were used to obtain well-welded joints without cracks.Lower crack sensitivity of joints was attributed to the microstructure evolution to obtain more ability of stress accommodation with the increasing heating beam current and heating time.Long-time pre-heating of 5 min and post-heating of 12 min led to reduced volume fraction of residualβ0 phase with the growth ofα2/γlamellar colonies in the fusion zone(FZ).The refined microstructure of FZ contributed to the highest hardness of the FZ,and the fracture happened at the base material(BM)in tensile tests,indicating that the tensile properties of the welding seam surpassed that of the BM.This work provides an effective way to obtain TiAl joints with better mechanical properties of the welding seam than that of the BM,which is a breakthrough in the welding of TiAl alloys. | Songkuan Zhao Bin Tang Guoming Zheng Mengqi Zhang Wei Chen Tong Zhao Beibei Wei Lei Zhu Jinshan Li | 2023 | Acta Metallurgica Sinica(English Letters)2023,36,10: | 0 |
| 15 | Curvature geometry in 2D materials显示文摘The two-dimensional(2D)material family can be regarded as the extreme externalization form of the matter in the planar 2D space.These atomically thin materials have abundant curvature structures,which will significantly affect their atomic configurations and physicochemical properties.Curvature engineering offers a new tuning freedom beyond the thoroughly studied layer number,grain boundaries,stacking order,etc.The precise control of the curvature geometry in 2D materials can redefine this material family.Special attention will be given to this emerging field and highlight possible future directions.With the step-by-step achievement in understanding the curvature engineering effect in 2D materials and establishing reliable delicate curvature controlling strategies,a brand-new era of 2D materials research could be developed. | Nan Wei Yiran Ding Jiaqian Zhang Linyi Li Mengqi Zeng Lei Fu | 2023 | National Science Review2023,10,8: | 0 |
| 16 | Synthesis of Meta Symmetric 1T'-WTe2 Using an Edge-Induced Mechanism显示文摘Lattice symmetry is vital to the properties of two-dimensional(2D)materials,yet their fixed symmetry cannot meet the increasing requirements in highly eficient and programmable electrical transport.If the structural diversity of 2D materals,as demon-strated by 1T'-WTez,is improved without any phase transition or structural reconstruction,excellent metallic 1T'-WTez would be possibly used for inte-grated devices.Here,we realized meta symmetry of 1T'-WTez by using an edge-induced mechanism,which is recognized as the combination of the intrin-sic C2v symmetry and sixfold axes.On account of the dynamically controlled growth,the meta symmetric 1T'-WTez with^94.9%purity is obtained for the first time.Meta symmetry will also keep the intrinsic electrical properties of 1T'-WTez over the node.Such meta symmetry could not only enrich the structural diversity of 1T'-WTez,but also be extended to other low-symmetry 2D materials,which would be promising for customized circuits and devices. | Yao Xiao Mengyue Zhou Jinglu Liu Bin Wei Shuanglin Yue Yuan Zhou Kena Yang Tao Zhang Mengqi Zeng Zhongchang Wang Lei Fu | 2020 | Chinese Journal of Chemistry2020,38,7: | 0 |
| 17 | Aldolase is a sensor for both low and high glucose,linking to AMPK and mTORC1显示文摘Dear Editor,As well as glucose being the major carbon nutrient for most cells,its availability also acts as a gate-keeper exerting a switch between anabolic and catabolic metabolism,with the protein kinases mTORC1 and AMP-activated protein kinase(AMPK)being the two master controllers.1 In low glucose,AMPK is activated and phosphorylates a wide range of downstream targets to maintain energy homeostasis,by switching on catabolic pathways while switching off ATP-consuming processes.1 In high glucose,mTORC1 is activated and shifts the metabolic program of the cell towards anabolic metabolism.1 It is already known that low glucose,and hence low levels of the glycolytic intermediate fructose-1,6-bisphosphate(FBP),can be sensed by aldolase to trigger AMPK activation via the lysosomal pathway.2,3 This occurs independently of increases in AMP and ADP,the classical activators of AMPK.2 Although it is clear that mTORC1 is also regulated by glucose availability at multiple levels,the underlying mechanisms have not been fully elucidated. | Mengqi Li Chen-Song Zhang Jin-Wei Feng Xiaoyan Wei Cixiong Zhang Changchuan Xie Yaying Wu Simon A.Hawley Abdelmadjid Atrih Douglas J.Lamont Zhichao Wang Hai-Long Piao D.Grahame Hardie Sheng-Cai Lin | 2021 | Cell Research2021,31,4: | 0 |
| 18 | Highly efficient and non-doped red conjugated polymer dot for photostable cell imaging显示文摘By introducing a naphthothiadiazole(NT)unit as the main building block,a non-doped and red emissive conjugated polymer poly(9,9-dihexylfluorene-alt-naphthothiadiazole)(PFNT)is readily obtained through a two-step synthesis.Since the NT unit has a large twist angle with its neighboring segment,the aggregation-induced quenching(AIQ)effect of PFNT can be effectively suppressed in the condensed state.As a result,the corresponding PFNT polymer dot(Pdot)exhibits a high fluorescence quantum yield of53.2%with peak emission at 616 nm,which is one of the most efficient red Pdots known.PFNT Pdot shows good biocompatibility and can be employed for living cell fluorescent imaging with high brightness.It also can be used for specific subcellular organelle imaging through immunofluorescence labeling.Furthermore,the PFNT Pdot demonstrates much better photostability for long-time cell fluorescence imaging than commercial red dyes.The high performances of PFNT Pdot make it a promising fluorescent probe for practical bioapplications. | Mengqi Wu Qidong Wei Caihong Xian Chunlei Dai Xuehan He Changfeng Wu Guoming Sun Lei Chen | 2023 | Chinese Chemical Letters2023,34,6: | 0 |
| 19 | Performance evaluation on the pollution control against wet weather overflow based on on-site coagulation/flocculation in terminal drainage pipes显示文摘The pollution caused by wet weather overflow in urban drainage systems is a main factor causing blackening an odorization of urban rivers.The conventional overflow treatment based on coagulation/flocculation in terminal drainage systems requires relatively large space and long retention time demand that makes it not applicable in crowded urban drainage systems or under heavy rains.On-site coagulation/flocculation in terminal drainage pipes was proposed in this study which was aimed to transfer the coagulation/flocculation process to the inside of pipes at the terminal drainage system to save space and reduce the retention time of the coagulation/flocculation process.The optimized dose of chemicals was studied first which was 80 mg/L of coagulant and 0.8 mg/L of flocculant.Settling for only 5 min can remove most of the pollutants at 406.5 m of transmission distance.In addition,the relation of wet weather overflow rate and concentration of pollution load on the on-site coagulation/flocculation process was investigated,which indicated that high removal of pollutant was gained at a large range of flow velocity and pollutant concentration.Finally,the study confirmed electric neutralization,bridging,and net capture as the major mechanisms in this process,and further optimization was proposed.The proposed process can reduce much turbidity,chemical oxygen demand,and total phosphorous,but hardly remove soluble ammonia and organics.This work provides scientific guidance to address wet weather overflow in terminal drainage pipes. | Zongqun Chen Wei Jin Hailong Yin Mengqi Han Zuxin Xu | 2021 | Frontiers of Environmental Science & Engineering2021,15,6: | 0 |
| 20 | Energy Management and Capacity Optimization of Photovoltaic, Energy Storage System, Flexible Building Power System Considering Combined Benefit显示文摘Building structures themselves are one of the key areas of urban energy consumption,therefore,are a major source of greenhouse gas emissions.With this understood,the carbon trading market is gradually expanding to the building sector to control greenhouse gas emissions.Hence,to balance the interests of the environment and the building users,this paper proposes an optimal operation scheme for the photovoltaic,energy storage system,and flexible building power system(PEFB),considering the combined benefit of building.Based on the model of conventional photovoltaic(PV)and energy storage system(ESS),the mathematical optimization model of the system is proposed by taking the combined benefit of the building to the economy,society,and environment as the optimization objective,taking the near-zero energy consumption and carbon emission limitation of the building as the main constraints.The optimized operation strategy in this paper can give optimal results by making a trade-off between the users’costs and the combined benefits of the building.The efficiency and effectiveness of the proposed methods are verified by simulated experiments. | Chang Liu Bo Luo Wei Wang Hongyuan Gao Zhixun Wang Hongfa Ding Mengqi Yu Yongquan Peng | 2023 | Energy Engineering2023,120,2: | 0 |