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MOF-based materials facilitate efficient anaerobic digestion of organic wastes:integrating substrate bioavailability and microbial syntrophism

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Frontiers of Environmental Science & Engineering 2024年第8期18卷 153-157页

作者： Haoyu Liu Ying Xu Xiang Chen Xiankai Wang Hang Wang Xiaohu Dai State Key Laboratory of Pollution Control and Resource Reuse School of Environmental Science and EngineeringTongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China YANGTZE Eco-Environment Engineering Research Center China Three Gorges CorporationWuhan 430010China National Engineering Research Center of Eco-Environment Protection for Yangtze River Economic Belt Wuhan 430010China

Anaerobic digestion(AD)of organic waste(OW)for methane production is generally *** of AD systems with traditional materials(e.g.,electroconductive materials)is a current focus of research and has been reported to assist methanogenesis by enhancing the productivity of microbial metabolism among syntrophic *** in the AD of organic wastewater,in which microbial cells come into direct contact with the dissolved substrate,in the complex multiphase AD system of OW,low substrate bioavailability is an inevitable obstacle to microbial syntrophism for ***,we propose that improving substrate bioavailability and microbial syntrophism is a powerful strategy for ensuring material-assisted efficient AD of *** on the above considerations,metal-organic frameworks(MOFs),with their exceptionally high porosity,outstanding multi-functionality,and tuneable structures,have excellent potential for application in multiphase anaerobic systems of OW to integrate substrate bioavailability and microbial syntrophism and drive efficient *** addition,MOFs with designable and tuneable natures have great potential for use in identifying suitable materials for anaerobic systems for different types of OW via machine-learning technologies,thereby effectively enhancing methanogenesis from ***,the sustainable application of MOFs in AD and the corresponding environmental risks warrant further investigation.

关键词： Anaerobic digestion Methane production Biodegradability Functional materials Metal-organic frameworks

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Low-Code Penetration Testing Payload Generation Tool Based on Msfvenom 3

Low-Code Penetration Testing Payload Generation Tool Based o...

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3rd International Conference on Advanced Manufacturing Technology and Electronic Information, AMTEI 2023

作者： Li, Shu Tian, Zheng Sun, Yizhen Zhu, Hongyu Zhang, Daojuan Wang, Huiwen Wu, Qitian Hunan Provincial Key Laboratory of Internet of Things in Electricity State Grid Information & Communication Company of Hunan Electric Power Corporation Hunan Changsha China State Grid Laboratory of Power Cyber-Security Protection and Monitoring Technology State Grid Smart Grid Research Institute Co. Ltd. Beijing China

ISBN: (纸本)9781510674806

This article proposes a penetration testing payload generation tool based on the Qt graphical interface and msfvenom. The aim is to provide a user-friendly graphical interface that enables penetration testing professionals to efficiently generate customized penetration testing payloads. By integrating the msfvenom payload generation script, users can customize different payload types and parameter settings through the visual interface. While improving the efficiency of payload generation, the tool emphasizes enhancing the user experience to adapt and meet the evolving needs of penetration testing. © 2024 SPIE.

关键词： Human-machine interfaces Information security Photonic integrated circuits Process modeling Tunable filters Computer security Connectors Instrument modeling Pipes Windows

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A Synchronization Stability Enhancement control Method for 100% Converter-based System Based on An Improved Kuramoto Model 5

A Synchronization Stability Enhancement Control Method for 1...

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5th IEEE International Electrical and Energy Conference, CIEEC 2022

作者： Zou, Yan Wang, Zhen Li, Zhicheng Xiong, Jiali Deng, Chaoping Cai, Qiang Zhejiang University School of Electrical Engeerning Hangzhou China State Grid Fujian Electric Power Research Institute Fujian Key Laboratory of Protection and Operation Control for Smart Grid Fuzhou China

ISBN: (数字)9781665411042

ISBN: (纸本)9781665411042

In this paper, a synchronization stability enhancement control method is developed to improve the stability performance of power systems with 100% converter-based renewable generation. An improved Kuramoto-type model is established with a time-variable power injection taken into consideration, which can represent load and/or generation variation. Then a consensus tracking controller (CTC) to help all generators to trace a reference bus with specified common frequency rapidly is developed. A group of new synchronization conditions and the attraction region based on the improved Kuramoto-type model are then derived. Further, a control gain design scheme for CTC is proposed based on the two derived stability rules, i.e., the phase angle cohesiveness and the frequency bounded. Finally, a modified three-machine nine-bus system is used to validate the effectiveness of the proposed method and a comparison study result show that the transient stability performance of 100% power-converter system can be greatly improved. © 2022 IEEE.

关键词： Synchronization

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The dynamic changes of genes revealed that persistently overexpressed genes drive the evolution of cyflumetofen resistance in Tetranychus cinnabarinus

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Insect Science 2023年第4期30卷 1129-1148页

作者： Kaiyang Feng Jialu Liu Mingyu Zhao Zhixin Jiang Peilin Liu Peng Wei Wei Dou Lin He Key Laboratory of Entomology and Pest Control Engineering College of Plant ProtectionSouthwest UniversityChongqingChina Academy of Agricultural Sciences Southwest UniversityChongqingChina State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University Southwest UniversityChongqingChina Key Scientific Research Base of Pest and Mold Control of Heritage Collection(Chongqing China Three Gorges Museum) State Administration of Cultural HeritageChongqingChina

Changes in gene expression are associated with the evolution of pesticide resis-tance in *** this study,transcriptome sequencing was performed in 3 different resistance levels(low,L;medium,M;and high,H)of cyflumetofen-resistant strain(YN-CyR).A total of 1685 genes,including 97 detoxification enzyme genes,were upregulated in all 3 stages,of which 192 genes,including 11 detoxification enzyme genes,showed a continuous increase in expression level with resistance development(L to H).RNA in-terference experiments showed that overexpression of 7 genes(CYP392A1,TcGSTd05,CCE06,CYP389A1,TcGSTz01,CCE59,and CYP389C2)is involved in the development of cyflumetofen resistance in Tetranychus *** recombinant CYP392A1 can effectively metabolize cyflumetofen,while CCE06 can bind and sequester cyflumetofen in *** compared 2 methods for rapid screening of resistance molecular markers,in-cluding short-term induction and 1-time high-dose *** detoxification enzyme genes were upregulated in the field susceptible strain(YN-S)by induction with 20%lethal concentration(LC2o)of ***,16 detoxification enzyme genes were up-regulated by 1-time selection with LCso of ***,the 16 genes were overexpressed in all 3 resistance *** results indicated that 1685 genes that were upregulated at the L stage constituted the basis of cyflumetofen resistance,of which 192 genes in which upregulation continued to increase were the main driving force for the de-velopment of ***,the 1-time high-dose selection is an efficient way to rapidly obtain the resistance-related genes that can aid in the development of resistance markers and resistance management in mites.

关键词： change rules cyflumetofen detoxification enzyme genes resistance molec-ular markers Tetranychus cinnabarinus

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Research on key Technologies of Line Differential protection Based on 5G Communication 6th

Research on Key Technologies of Line Differential Protection...

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6th PURPLE MOUNTAIN FORUM on smart Grid protection and control, PMF2021

作者： Zheng, Xiaojiang Yao, Gang Wu, Tonghua Teng, Xianliang Hong, Feng Wang, Weiwei State Key Laboratory of Smart Grid Protection and Control Jiangsu Nanjing211106 China Jiangsu Nanjing211106 China NARI Technology Co. Ltd Jiangsu Nanjing211106 China

ISBN: (纸本)9789811671555

With the advanced 5G communication technology and the wireless communication environment of 5G communication network with high bandwidth, low delay and high reliability, line differential protection based on 5G communication has become the development trend of MV (Medium Voltage) and LV (Low Voltage) distribution network protection. This paper provides an overall architecture scheme of line differential protection based on 5G communication to further explain the characteristics of 5G network, and aiming at the problem of delay jitter existing in 5G network, presents a sampling point sequence number synchronization method based on absolute time-marker of external clock to analyze data encapsulation, interaction and traffic consumption of bilateral differential protection, and the corresponding technical solutions, and at last, it proposes a processing mechanism of protection device in dealing with clock loss and data anomaly, which provides a complete technical route for line differential protection based on 5G communication, facilitates the large-scale application of longitudinal differential protection in the closed-loop operation of MV and LV power network, and ensures that the requirements of quickness and selectivity can be met in the traditional non-unit protection of MV and LV power network, so as to improve the reliability level of power network. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： 5G mobile communication systems

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Characterization and prediction of tailpipe ammonia emissions from in-use China 5/6 light-duty gasoline vehicles

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Frontiers of Environmental Science & Engineering 2024年第1期18卷 71-81页

作者： Lewei Zeng Fengbin Wang Shupei Xiao Xuan Zheng Xintong Li Qiyuan Xie Xiaoyang Yu Cheng Huang Qingyao Hu Yan You Ye Wu College of Chemistry and Environmental Engineering Shenzhen UniversityShenzhen 518060China State Key Laboratory of Engines Tianjin UniversityTianjin 300072China China Automotive Technology and Research Center Co.Ltd. Tianjin 300300China CATARC Automotive Test Center(Guangzhou)Co.Ltd. Guangzhou 511300China State Environmental Protection Key Laboratory of Cause and Prevention of Urban Air Pollution Complex Shanghai Academy of Environmental SciencesShanghai 200233China National Observation and Research Station of Coastal Ecological Environments in Macao Macao Environmental Research InstituteMacao University of Science and TechnologyMacao SAR 999078China School of Environment State Key Joint Laboratory of Environment Simulation and Pollution ControlTsinghua UniversityBeijing 100084China

On-road tailpipe ammonia (NH3) emissions contribute to urban secondary organic aerosol formation and have direct or indirect adverse impacts on the environment and human health. To understand the tailpipe NH3 emission characteristics, we performed comprehensive chassis dynamometer measurements of NH3 emission from two China 5 and two China 6 light-duty gasoline vehicles (LDGVs) equipped with three-way catalytic converters (TWCs). The results showed that the distance-based emission factors (EFs) were 12.72 ± 2.68 and 3.18 ± 1.37 mg/km for China 5 and China 6 LDGVs, respectively. Upgrades in emission standards were associated with a reduction in tailpipe NH3 emission. In addition, high NH3 EFs were observed during the engine warm-up period in cold-start cases owing to the intensive emissions of incomplete combustion products and suitable catalytic temperature in the TWCs. Notably, based on the instantaneous NH3 emission rate, distinct NH3–emitting events were detected under high/extra high velocity or rapid acceleration. Furthermore, NH3 emission rates correlated well with engine speed, vehicle specific power, and modified combustion efficiency, which were more easily accessible. These strong correlations were applied to reproduce NH3 emissions from China 5/6 LDGVs. The predicted NH3 EFs under different dynamometer and real-world cycles agreed well with existing measurement and prediction results, revealing that the NH3 EFs of LDGVs in urban routes were within 8.55–11.62 mg/km. The results presented here substantially contribute to improving the NH3 emission inventory for LDGVs and predicting on-road NH3 emissions in China.

关键词： NH3 instantaneous emissions Catalytic temperature Vehicle specific power Combustion efficiency Emission prediction

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Degradation of the emerging brominated flame retardant tetrabromobisphenol S using organo-montmorillonite supported nanoscale zero-valent iron

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Environmental Science and Pollution Research 2024年第23期31卷 33547-33560页

作者： Qin, Chao Wu, Junxue Lu, Xinyu Gu, Chenggang Guo, Yang Hu, Guanjiu Chen, Min Xia, Kang Wang, Hui Xie, Mingjie State Environmental Protection Key Laboratory of Monitoring and Analysis for Organic Pollutants in Surface Water Jiangsu Environmental Monitoring Center Nanjing210036 China Institute of Plant Protection Beijing Academy of Agricultural and Forestry Sciences Beijing100097 China Collaborative Innovation Center of Atmospheric Environment and Equipment Technology Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control School of Environmental Science and Engineering Nanjing University of Information Science & ampTechnology 219 Ningliu Road Jiangsu Nanjing210044 China Institute of Soil Science Chinese Academy of Sciences Nanjing210008 China State Environmental Protection Key Laboratory of Soil Environmental Management and Pollution Control Ministry of Ecology and Environment Nanjing Institute of Environmental Sciences Nanjing210042 China College of Science Nanjing Agricultural University Nanjing210095 China School of Plant and Environmental Sciences Virginia Tech BlacksburgVA24061 United States

The widespread occurrence of emerging brominated flame retardant tetrabromobisphenol S (TBBPS) has become a major environmental concern. In this study, a nanoscale zero-valent iron (nZVI) impregnated organic montmorillonite composite (nZVI-OMT) was successfully prepared and utilized to degrade TBBPS in aqueous solution. The results show that the nZVI-OMT composite was very stable and reusable as the nZVI was well dispersed on the organic montmorillonite. Organic montmorillonite clay layers provide a strong support, facilitate well dispersion of the nZVI chains, and accelerate the overall TBBPS transformation with a degradation rate constant 5.5 times higher than that of the original nZVI. Four major intermediates, including tribromobisphenol S (tri-BBPS), dibromobisphenol S (di-BBPS), bromobisphenol S (BBPS), and bisphenol S (BPS), were detected by high-resolution mass spectrometry (HRMS), indicating sequential reductive debromination of TBBPS mediated by nZVI-OMT. The effective elimination of acute ecotoxicity predicted by toxicity analysis also suggests that the debromination process is a safe and viable option for the treatment of TBBPS. Our results have shown for the first time that TBBPS can be rapidly degraded by an nZVI-OMT composite, expanding the potential use of clay-supported nZVI composites as an environmentally friendly material for wastewater treatment and groundwater remediation. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Degradation

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Carbon Emission Calculation and Low Carbon Transition Path Optimization Method for Electric Power Industry 25

Carbon Emission Calculation and Low Carbon Transition Path O...

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25th IEEE China Conference on System Simulation Technology and its Application, CCSSTA 2024

作者： Yu, Fanfan Kong, Xiangyu Luo, Shuai Wu, Shunyu Wang, Yubo Gao, Yi Tianjin University of Technology Tianjin Key Laboratory of New Energy Power Conversion Transmission and Intelligent Control Tianjin China Tianjin University Key Laboratory of Smart Grid Tianjin China Economic and Technical Research Institute of State Grid Tianjin Electric Power Company Tianjin China

ISBN: (纸本)9798350366600

With economic development, the energy and power industry must balance power supply growth and carbon reduction requirements. To achieve the goal of 'double carbon', the power system needs to be transformed into green and low-carbon, and accurate carbon emission accounting has become a critical support. Due to the significant differences between cities and regions, emission reduction strategies vary. To this end, the article firstly clarifies the carbon emission accounting boundary of power generation enterprises, establishes a carbon emission accounting model for the power industry based on the IPCC inventory method of fuel consumption, and secondly constructs an enterprise low-carbon transition planning model by integrating technological, economic, environmental and other factors, researches and analyzes the path of power generation enterprises to achieve carbon-neutral transition by 2060, and simulates different low-carbon transition scenarios. The results show that achieving carbon neutrality appropriately in advance is beneficial to power generation enterprises to a certain extent, but advancing the process of carbon neutrality too early will lead to soaring costs. In addition,future policies will push forward the scale of installed energy storage, and enterprises should make good use of technical and resource reserves. The power industry needs to formulate appropriate low-carbon transformation strategies according to its reality to ensure that it realizes a win-win situation regarding economic and social benefits while realizing the goal of carbon neutrality. © 2024 IEEE.

关键词： Low emission

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Optimization Method for Flexible Dispatch of Source, Grid, Load and Storage Considering Different Photovoltaic Penetration Rates 25

Optimization Method for Flexible Dispatch of Source, Grid, L...

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25th IEEE China Conference on System Simulation Technology and its Application, CCSSTA 2024

作者： Wang, Man Wang, Chunjie Kong, Xiangyu Yao, Haoyang Niu, Yuan Wang, Chao Tianjin University of Technology Tianjin Key Laboratory of New Energy Power Conversion Transmission and Intelligent Control Tianjin China Tianjin University Key Laboratory of Smart Grid Tianjin China State Grid Tianjin Electric Power Company Ninghe Power Supply Branch Tianjin China

ISBN: (纸本)9798350366600

As the scale of grid connection of renewable resources such as wind and solar continues to increase, it is difficult to meet system needs by relying solely on the existing single fast peak-shaving power source. Therefore, this paper aims at the power system scheduling problem under different photovoltaic penetration rates. First, the multi-dimensional characteristics of photovoltaics are modeled. Then, a system scheduling model for the interaction of four types of resources: conventional units, grid elasticity, load response, and energy storage is established. Finally, to minimize the system peak-shaving cost, the optimal system scheduling strategy under different photovoltaic penetration rates is obtained, and the dynamic matching of different photovoltaic penetration rates with the peak-shaving capacity of the power system is completed. A system scheduling strategy that can meet different photovoltaic penetration rates is proposed to ensure the power system's balance of supply and demand and improve resource utilization. © 2024 IEEE.

关键词： grid interaction between source load and storage new energy grid connection optimal power grid dispatching

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Accurate recognition of the reproductive development status and prediction of oviposition fecundity in Spodoptera frugiperda(Lepidoptera:Noctuidae)based on computer vision

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Journal of Integrative Agriculture 2023年第7期22卷 2173-2187页

作者： LÜChun-yang GE Shi-shuai HE Wei ZHANG Hao-wen YANG Xian-ming CHU Bo WU Kong-ming Key Laboratory of Agricultural Information Service Technology Ministry of Agriculture and Rural AffairsAgricultural Information InstituteChinese Academy of Agricultural SciencesBeijing 100081P.R.China State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193P.R.China State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops Institute of Applied EcologyFujian Agriculture and Forestry UniversityFuzhou 350002P.R.China College of Plant Protection Henan Agricultural UniversityZhengzhou 450002P.R.China

Spodoptera frugiperda(Lepidoptera:Noctuidae)is an important migratory agricultural pest worldwide,which has invaded many countries in the Old World since 2016 and now poses a serious threat to world food *** present monitoring and early warning strategies for the fall army worm(FAW)mainly focus on adult population density,but lack an information technology platform for precisely forecasting the reproductive dynamics of the *** this study,to identify the developmental status of the adults,we first utilized female ovarian images to extract and screen five features combined with the support vector machine(SVM)classifier and employed male testes images to obtain the testis circular ***,we established models for the relationship between oviposition dynamics and the developmental time of adult reproductive organs using laboratory *** results show that the accuracy of female ovary development stage determination reached 91%.The mean standard error(MSE)between the actual and predicted values of the ovarian developmental time was 0.2431,and the mean error rate between the actual and predicted values of the daily oviposition quantity was 12.38%.The error rate for the recognition of testis diameter was 3.25%,and the predicted and actual values of the testis developmental time in males had an MSE of 0.7734.A WeChat applet for identifying the reproductive developmental state and predicting reproduction of *** was developed by integrating the above research results,and it is now available for use by anyone involved in plant *** study developed an automated method for accurately forecasting the reproductive dynamics of *** populations,which can be helpful for the construction of a population monitoring and early warning system for use by both professional experts and local people at the county level.

关键词： Spodoptera frugiperda computer vision ovary testis WeChat applet

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