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The Increasing Role of Synergistic Effects in Carbon Mitigation and Air Quality Improvement, and Its Associated Health Benefits in China

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Engineering 2023年第1期20卷 103-111页

作者： Jie Wang Xi Lu pengfei du Haotian Zheng Zhaoxin Dong Zihua Yin Jia Xing Shuxiao Wang Jiming Hao State Key Joint Laboratory of Environment Simulation and Pollution Control School of the EnvironmentTsinghua UniversityBeijing 100084China Institute for Carbon Neutrality Tsinghua UniversityBeijing 100084China Beijing Laboratory of Environmental Frontier Technologies Tsinghua UniversityBeijing 100084China State Environmental Protection Key Laboratory of the Sources and Control of Air Pollution Complex Beijing 100084China

A synergistic pathway is regarded as a critical measure for tackling the intertwined challenges of climate change and air pollution in China. However, there is as yet no indicator that can comprehensively reflect such synergistic effects;hence, existing studies lack a consistent framework for comparison. Here, we introduce a new synergistic indicator defined as the pollutant generation per gross domestic product (GDP) and adopt an integrated analysis framework by linking the logarithmic mean Divisia index (LMDI) method, response surface model (RSM), and global exposure mortality model (GEMM) to evaluate the synergistic effects of carbon mitigation on both air pollutant reduction and public health in China. The results show that synergistic effects played an increasingly important role in the emissions mitigation of SO_(2), NOx, and primary particulate matter with an aerodynamic diameter no greater than 2.5 μm (PM2.5), and the synergistic mitigation of pollutants respectively increase from 3.1, 1.4, and 0.3 Mt during the 11th Five-Year Plan (FYP) (2006–2010) to 5.6, 3.7, and 1.9 Mt during the 12th FYP (2011–2015). Against the non-control scenario, synergistic effects alone contributed to a 15% reduction in annual mean PM2.5 concentration, resulting in the prevention of 0.29 million (95% confidential interval: 0.28–0.30) PM2.5-attributable excess deaths in 2015. Synergistic benefits to air quality improvement and public health were remarkable in the developed and population-dense eastern provinces and municipalities. With the processes of urbanization and carbon neutrality in the future, synergistic effects are expected to continue to increase. Realizing climate targets in advance in developed regions would concurrently bring strong synergistic effects to air quality and public health.

关键词： Synergistic effects Indicator Carbon mitigation Air pollution control Spatial and temporal disparities

A comparative study to determine the effects of breed and feed restriction on glucose metabolism of chickens

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Animal Nutrition 2023年第2期13卷 261-269页

作者： pengfei du Huanjie Wang Xiuwen Shi Xiangli Zhang Yao Zhu Wen Chen Huaiyong Zhang Yanqun Huang College of Animal Science and Technology Key Laboratory of Animal Biochemistry and NutritionMinistry of AgricultureHenan Agricultural UniversityZhengzhou 450002HenanChina Laboratory for Animal Nutrition and Animal Product Quality Department of Animal Sciences and Aquatic EcologyGhent UniversityGhent9000Belgium

The glucose metabolism of poultry draws wide attention as they have nearly twice the fasting blood glucose than that of *** define the relationship between glucose metabolism and breed of chicken,the outcomes from different growth rate chickens showed that Arbor Acres(AA)broilers,a well-known fast-growing breed,had a lower fasting blood glucose concentration and glucose clearance rate when compared to Silky chickens,a Chinese traditional medicinal chicken with black skin and a slow growth ***,AA broilers had a relatively slow rise in blood glucose in response to oral glucose solution than the Silky chickens on 21 and 42 d(P<0.05),which is probably attributed to downregulated expression of pancreatic insulin(INS),and upregulated transcription of phosphoenolpyruvate carboxy kinase 1(PCK1)and glucose transporter 2(GLUT2)in the liver of AA broilers(P<0.05).In response to feeding restriction from 7 to 21 d,both the fasting blood glucose and the response speed of AA broilers to oral glucose were increased on d 21(P<0.05),and the serum glucose concentrations after 3 weeks compensatory growth were improved by early feed restriction in AA *** restriction could also upregulate the mRNA level of pancreatic INS on d 21 and 42,as well as decrease the expressions of PCK1,glucose-6-phosphatase catalytic(G6PC),and GLUT2 in the liver on d 21(P<0.05)when compared to the free feeding *** results revealed that Silky chickens have a stronger capability to regulate glucose homeostasis than AA broilers,and feed restriction could improve the fasting blood glucose and the response to oral glucose of AA broilers.

关键词： Silky chicken AA broiler Feed restriction Glucose tolerance Pancreas

Preparation and Tribological Properties of Lanthanum-doped Muscovite Composite Particles as Lubricant Additives in Lithium Grease

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China Petroleum Processing & Petrochemical Technology 2016年第2期18卷 100-107页

作者： du pengfei Chen Guoxu Song Shiyuan Zhao Litao Wu Jiang Cheng Peng Yang Xiao Logistical Engineering University

Lanthanum-doped muscovite(MC) composite particles(hereinafter abbreviated as La-MC) were prepared by the mechanical solid-state-chemistry-reaction method, followed by surface modification with oleic acid. The microstructure of materials was characterized by SEM, XRD, EDS and FTIR. Furthermore, the friction-reduction and anti-wear properties of MC and La-MC as lubricant additives in lithium grease were evaluated using a four-ball friction and wear tester. The results showed that La(OH)_3 nanoparticles were coated on the surface of muscovite. Both MC and La-MC can effectively improve the friction-reduction and anti-wear properties of lithium grease and La-MC presents better tribological properties than MC. The excellent tribological properties of La-MC can be attributed to the formation of the adsorbed La-MC film and the chemical reaction film mainly composed of Fe_2O_3 and SiO_2 on the worn surface, as well as the catalysis of lanthanum element during the friction process.

关键词： muscovite composite particles lubricant additives friction-reduction and anti-wear mechanism

Application of Bayesian model and discriminant function analysis to the estimation of sediment source contributions

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International Journal of Sediment Research 2019年第6期34卷 577-590页

作者： pengfei du Donghao Huang duihu Ning Yuehong Chen Bing Liu Jian Wang Jingjing Xu State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin China Institute of Water Resources and Hydropower Research Faculty of Geographical Science Beijing Normal University

Bayesian and discriminant function analysis(DFA) models have recently been used as tools to estimate sediment source *** existing multivariate mixing models,the accuracy of these two models remains *** the current study,four well-distinguished source samples were used to create artificial mixtures to test the performance of Bayesian and DFA *** models were tested against the Walling-Collins model,a credible model used in estimation of sediment source contributions estimation,as a *** artificial mixtures were divided into five groups,with each group consisting of five samples with known source *** relative contributions of the sediment sources to the individual and grouped samples were calculated using each of the *** mean absolute error(MAE) and standard error of(SE) MAE were used to test the accuracy of each model and the robustness of the optimized *** the individual sediment samples,the calculated source contributions obtained with the Bayesian(MAE=7.4%,SE=0.6%) and Walling-Collins(MAE=7.5%,SE=0.7%) models produced results which were closest to the actual percentages of the source contributions to the sediment *** DFA model produced the worst estimates(MAE=18.4%,SE=1.4%).For the grouped sediment samples,the Walling-Collins model(MAE=5.4%) was the best predictor,closely followed by the Bayesian model(MAE=5.9%).The results obtained with the DFA model were similar to the values for the individual sediment samples,with the accuracy of the source contribution value being the poorest obtained with any of the models(MAE=18.5%).An increase in sample size improved the accuracies of the Walling-Collins and Bayesian models,but the DFA model produced similarly inaccurate results for both the individual and grouped sediment ***,the accuracy of the Walling-Collins and Bayesian models was similar(p> 0.01),while there were significant differences(p <0.01) between the DFA model and the

关键词： Sediment fingerprinting Sediment source contribution Walling-Collins model Bayesian model Discriminant function analysis

Dietary resistant starch alleviates Escherichia coli-induced bone loss in meat ducks by promoting short-chain fatty acid production and inhibiting Malt1/NF-κB inflammasome activation

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Journal of Animal Science and Biotechnology 2023年第1期14卷 261-277页

作者： Huaiyong Zhang Simeng Qin Xiangli Zhang pengfei du Yao Zhu Yanqun Huang Joris Michiels Quifeng Zeng Wen Chen College of Animal Science and Technology Key Laboratory of Animal Biochemistry and NutritionMinistry of AgricultureHenan Agricultural UniversityZhengzhou 450046China. Laboratory for Animal Nutrition and Animal Product Quality Department of Animal Sciences and Aquatic EcologyGhent University9000 GhentBelgium. Institute of Animal Nutrition Key Laboratory for Animal Disease‑Resistance Nutrition of ChinaMinistry of EducationSichuan Agricultural UniversityChengdu 611130China.

Background:Escherichia coli(***)infection in humans and animals usually comes with gut dysbiosis,which is potential culprit to skeletal health,it is still unclear to whether diet interfered gut microbiome changes can be a protective strategy to bone loss ***,the effects of resistant starch from raw potato starch(RPS),a type of prebiotic,on ***-induced bone loss and gut microbial composition in meat ducks were ***:The results showed that dietary 12%RPS treatment improved bone quality,depressed bone resorption,and attenuated the pro-inflammatory reaction in both ileum and bone ***,the 12%RPS diet also increased the abundance of Firmicutes in ***-treated birds,along with higher production of short-chain fatty acids(SCFAs)especially propionate and *** addition ofβ-acid,an inhibitor of bacterial SCFAs production,to the drinking water of ducks fed 12%RPS diet significantly decreased SCFAs level in cecum content and eliminated RPS-induced tibial mass ***,treatment with MI-2 to abrogate mucosa-associated lymphoid tissue lymphoma translocation protein 1(Malt1)activity replicated the protective role of dietary 12%RPS in ***-induced bone loss including reduced the inhibition on nuclear factorκB(NF-κB)inflammasome activation,decreased bone resorption,and improved bone quality,which were correlated with comparable and higher regulatory T cells(Treg)frequency in MI-2 and 12%RPS group,***:These findings suggested that the diet with 12%RPS could alleviate ***-induced bone loss in meat ducks by changing the gut microbial composition and promoting concomitant SCFAs production,and consequently inhibiting Malt1/NF-κB inflammasome activation and Treg cells expansion.

关键词： Bone loss Malt1/NF-κB signalling Microbiota Resistant starch SCFAs

Impacts of climate change and agricultural activities on water quality in the Lower Kaidu River Basin,China

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Journal of Geographical Sciences 2020年第1期30卷 164-176页

作者： BA Wulong du pengfei LIU Tie BAO Anming CHEN Xi LIU Jiao QIN Chengxin State Key Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and GeographyCASUrumqi 830011China School of Energy and Power Engineering Xihua UniversityChengdu 610039China

In the context of climate change and over-exploitation of water resources, water shortage and water pollution in arid regions have become major constraints to local sustainable development. In this study, we established a Soil and Water Assessment Tool (SWAT) model for simulating non-point source (NPS) pollution in the irrigation area of the lower reaches of the Kaidu River Basin, based on spatial and attribute data (2010-2014). Four climate change scenarios (2040-2044) and two agricultural management scenarios were input into the SWAT model to quantify the effects of climate change and agricultural management on solvents and solutes of pollutants in the study area. The simulation results show that compared to the reference period (2010-2014), with a decline in streamflow from the Kaidu River, the average annual irrigation water consumption is expected to decrease by 3.84x108 m3 or 8.87% during the period of 2040-2044. Meanwhile, the average annual total nitrogen (TN) and total phosphorus (TP) in agricultural drainage canals will also increase by 10.50% and 30.06%, respectively. Through the implementation of agricultural management measures, the TN and TP in farmland drainage can be reduced by 14.49% and 16.03%, respectively, reaching 661.56 t and 12.99 t, accordingly, and the increasing water efficiency can save irrigation water consumption by 4.41 x108 m3 or 4.77%. The results indicate that although the water environment in the irrigation area in the lower reaches of the Kaidu River Basin is deteriorating, the situation can be improved by implementing appropriate agricultural production methods. The quantitative analysis results of NPS pollutants in the irrigation area under different scenarios provide a scientific basis for water environmental management in the Kaidu River Basin.

关键词： climate change agricultural management non-point pollutants SWAT Kaidu River Basin water quality

Personal glucose meters coupled with signal amplification technologies for quantitative detection of non-glucose targets:Recent progress and challenges in food safety hazards analysis

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Journal of Pharmaceutical Analysis 2023年第3期13卷 223-238页

作者： Feng He Haijie Wang pengfei du Tengfei Li Weiting Wang Tianyu Tan Yaobo Liu Yanli Ma Yuanshang Wang A.M.Abd El-Aty Institute of Food&Nutrition Science and Technology Shandong Academy of Agricultural SciencesShandong Provincial Key Laboratory of Agro-Products Processing TechnologyKey Laboratory of Novel Food Resources ProcessingMinistry of AgricultureJinan250100China School of Life Sciences and Food Engineering Hebei University of EngineeringHandanHebei056038China College of Life Sciences Yantai UniversityYantaiShandong264005China College of Food Science and Technology Huazhong Agricultural UniversityWuhan430070China Department of Pharmacology Faculty of Veterinary MedicineCairo University12211GizaEgypt Department of Medical Pharmacology Medical FacultyAtaturk University25240ErzurumTurkey

Ensuring food safety is paramount *** effective detection methods to ensure food safety can be challenging owing to trace hazards,long detection time,and resource-poor sites,in addition to the matrix effects of *** glucose meter(PGM),a classic point-of-care testing device,possesses unique application advantages,demonstrating promise in food ***,many studies have used PGM-based biosensors and signal amplification technologies to achieve sensitive and specific detection of food *** amplification technologies have the potential to greatly improve the analytical performance and integration of PGMs with biosensors,which is crucial for solving the challenges associated with the use of PGMs for food safety *** review introduces the basic detection principle of a PGM-based sensing strategy,which consists of three key factors:target recognition,signal transduction,and signal *** studies of existing PGM-based sensing strategies combined with various signal amplification technologies(nanomaterial-loaded multienzyme labeling,nucleic acid reaction,DNAzyme catalysis,responsive nanomaterial encapsulation,and others)in the field of food safety detection are *** perspectives and potential opportunities and challenges associated with PGMs in the field of food safety are *** the need for complex sample preparation and the lack of standardization in the field,using PGMs in combination with signal amplification technology shows promise as a rapid and cost-effective method for food safety hazard analysis.

关键词： Food safety Personal glucose meter Signal amplification Point-of-care testing Detection principle

Zoning of rural water conservation in China:A case study at Ashihe River Basin

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International Soil and Water Conservation Research 2015年第2期3卷 130-140页

作者： Xiaoying Liu Sha Zhou Shi Qi Bo Yang Yuehong Chen Ruan Huang pengfei du China Institute of Water Resources and Hydropower Research State Key Lab.of Water Recycle Modelling20 Chegongzhuang Road WestBeijing 100048China Tsinghua University Haidian DistrictBeijing 100083China Beijing Forestry University Haidian DistrictBeijing 100083China

With the effective control of point source(PS)pollution accomplished,water pollution problems caused by non-point source(NPS)pollution have increased in recent *** worsening agricultural NPS pollution has drawn the attention of the Chinese Government and researcher scientists and has resulted in the often mentioned“three red lines”on water resources *** of the red lines is to control water pollution within a rational *** Agricultural NPS pollution,which includes pollution from housing,and from livestock and crop production,is the main *** on the NPS pollution statutes,an index system for integrated evaluation of water quality,and a zoning scheme for rural water conservation were *** the method of one-dimensional Euclidean distance,this country is divided into 9 sub-zones at the provincial level,which are the first level *** zoning themes include natural resources,socio-economic development,water use efficiency,and pollutants emission *** to pollution types of livestock,agriculture,or both,the first level zones are divided into 25 second level *** third class zoning is divided also based on pollution intensity of total nitrogen(TN),total phosphorus(TP),ammonia nitrogen(NH3-N),chemical oxygen demand(COD),and biochemical oxygen demand(BOD).On the basis of the second level zoning,there were formed 70 rural water conservation third level *** case study in the Ashihe river watershed indicated that the main pollution sources are consistent with the zoning research result,and this zoning has shown a good way to guide the agricultural NPS pollution control in not only the wide rural area of China but also other parts of the world.&2015 International Research and Training Center on Erosion and Sedimentation and China Water and Power *** and Hosting by Elsevier *** is an open access article under the CC BY-NC-ND license(http://***/licenses/by-nc-nd/4.0/).

关键词： NPS pollution Rural water conservation Zoning One-dimensional Euclidean distance

Calling systematic thinking in addressing water security issues

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Frontiers of Environmental Science & Engineering 2013年第5期7卷 625-625页

作者： Jining CHEN pengfei du State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China

It is well known, Asia has nearly 60% of the world＇s population, however, the fresh water resources in Asia is less than that of any other continents except Antarctica. Therefore, Asia is facing the most serious wate... 详细信息

关键词： addressing water security issues