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China Geology 2024年第1期7卷 1-11页

作者： Chang Li Fu Wang Peng yang Fei-cui Wang Yun-zhuang Hu yan-lin zhao Li-zhu Tian Rui-bin zhao Tianjin Center(North China Center of Geoscience Innovation) China Geological Survey(CGS)Tianjin 300170China Tangshan Hydrological Survey and Research Center of Heibei Province Tangshan063000China Key Laboratory of Coast Geo-Environment China Geological SurveyCGSTianjin 300170China Tianjin Key Laboratory of Coast Geological Processes and Environmental Safety Tianjin 300170China

This research investigates the ecological importance,changes,and status of mangrove wetlands along China’s *** interpretation,geological surveys,and ISO clustering unsupervised classification methods are employed to interpret mangrove distribution from remote sensing images from 2021,utilizing ArcGIS software ***,the carbon storage capacity of mangrove wetlands is quantified using the carbon storage module of InVEST *** show that the mangrove wetlands in China covered an area of 278.85 km2 in 2021,predominantly distributed in Hainan,Guangxi,Guangdong,Fujian,Zhejiang,Taiwan,Hong Kong,and *** total carbon storage is assessed at 2.11×10^(6) t,with specific regional data *** since the 1950s reveal periods of increase,decrease,sharp decrease,and slight-steady increases in mangrove areas in *** important finding is the predominant replacement of natural coastlines adjacent to mangrove wetlands by artificial ones,highlighting the need for creating suitable spaces for mangrove *** study is poised to guide future mangroverelated investigations and conservation strategies.

关键词： Mangrove Wetland Carbon storage Ecological conservation ArcGIS software platform Restoration InVEST model Quantitative analysis Coastal zone of China

Resonant contribution of the three-body decay processB_(s)→K+K−P in perturbative QCD

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Chinese Physics C 2024年第1期48卷 29-39页

作者：吕刚张畅畅赵艳琳张丽英 College of Science Henan University of TechnologyZhengzhou 450001China

We investigate CP violation in the decay process B_(s)→ϕ(ρ,ω)P→K^(+)K^(-)P by considering the interference effects ofϕ→K^(+)K^(-),ρ→K^(+)K^(-),andω→K^(+)K^(-)within the framework of the perturbative QCD method(P refers toπ,K,η,andη′pseudoscalar mesons).We analyze the mixings ofϕ−ρ^(0),ϕ−ω,andω−ρ0 and provide the amplitudes of the quasi-two-body decay *** CP violation for the B_(s)→K^(+)K^(-)P decay process is obvious in the ranges of the three vector meson ***,the localized CP violation can be found to compare with the experimental results from the three-body decay process at the LHC in the near future.

关键词： heavy flavor physics CP violation B decay

Investigation of erosion-corrosion behavior of Q235B steel in liquid-solid flows

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Petroleum Science 2022年第5期19卷 2358-2373页

作者： yan-lin zhao Fu-Xiang Ye Ge Zhang Jun Yao Yu-Fa Liu Shi-Gang Dong International Joint Laboratory on Clean Energy Science and Technology Beijing Key Laboratory of Process Fluid Filtration and SeparationCollege of Mechanical and Transportation EngineeringChina University of PetroleumBeijing102249People’s Republic of China College of Energy Xiamen UniversityXiamen361005People’s Republic of China

This work aims to investigate the erosion-corrosion behavior of Q235B steel in liquid-solid two-phase *** weight loss rate,surface morphology and electrochemical parameters of Q235B steel at different temperatures(20℃,30℃,40℃)and flow velocities(6 m/s,7 m/s,8 m/s,9 m/s,10 m/s)were studied *** results show that the weight loss rate of Q235B steel specimens after erosion-corrosion increases with increasing flow velocity and *** the erosion-corrosion process,the corrosion rates of specimens increase with increasing flow *** results of surface morphology show that the circular pits with clear edges are distributed randomly over specimen surface at low flow velocity,but the pit edge becomes vague at high flow *** temperature increasing,the erosion-corrosion damage became serious as shown by the aggregation of large and small pits on specimen *** working mechanism of erosion-corrosion is found to vary with flow velocity and *** relationships among erosion-corrosion components are quantitatively represented and show that synergy dominates the progress of material *** enhances erosion that is a dominant component in the *** inactions of erosion-corrosion can be described by"synergistic"and"additive"*** results show that"additive"effect becomes more significant with increasing flow velocity but decreases with increasing temperature,while"synergistic"effect is not sensitive to flow velocity and temperature.

关键词： Erosion-corrosion Liquid-solid Synergy Flow velocity Temperature

Age-period-cohort analysis of pulmonary tuberculosis reported incidence, China, 2006-2020

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Infectious Diseases of Poverty 2022年第4期11卷 62-71页

作者： Zhe Dong Qi-Qi Wang Shi-Cheng Yu Fei Huang Jian-Jun Liu Hong-yan Yao yan-lin zhao Chinese Center for Disease Control and Prevention BejingChina

Background:Tuberculosis(TB)poses a severe public health challenge in China and *** study evaluated the effects of age,period,and birth cohort on reported incidence trends of TB based on population and refined the characteristics of high-risk ***:Aggregate data that reported pulmonary tuberculosis(PTB)cases from China Tuberculosis Management Information System(TBIMS)from 2006 to 2020 were used to analyze effect coefficients through the age-period-cohort(APC)model based on intrinsic estimator(IE)method,and converted them into relative risk(RR)to estimate ***:A total of 14.82 million cases of PTB were reported in China from 2006 to 2020,showing a continuous downward *** reporting rate increased with age by age group,with 70-74 years old being 2-3 times higher than that in 20-24 years *** analysis model showed that age effects were bimodal in 20-24 years old[RR=2.29,95%confidence interval(CI):1.73-3.03]and 70-74 years old(RR=1.95,95%CI:1.67-2.27),and lower than the overall average in the groups under 15 years *** results showed that the risk was higher for women under age 40 than men and higher for men over *** risk was higher in urban than in rural areas under 30 years old and slightly higher in rural than in urban between 30 and 64 years *** risk for 15-34 years old was significantly higher in the east than in other *** period effects showed a decreasing trend,and the risk was higher in rural in recent *** for cohorts born in 1961-1965 and 2001-2005,where theRR increased,the later the cohort was born,the lower the *** cohort 1926-1930 in eastern had the highest risk(RR=3.49,95%CI:2.44-4.98).Conclusions:The reported incidence of PTB continued to decline in China from 2006 to *** young(20-24 years old)and the elderly(70-74 years old)were equally at high *** were differences in the age,period and cohort effects on PTB incidence among gender,urban-rural and *** findings

关键词： Pulmonary tuberculosis Reported incidence Age-period-cohort model China

Toward a rapid and convenient nanoplastic quantification method in laboratory-scale study based on fluorescence intensity

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Frontiers of Environmental Science & Engineering 2024年第5期18卷 117-126页

作者： Ruiqi yan Sen lin Qian Ding Lei Zhang Xia Yu Wentao zhao Qian Sui 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 TechnologyShanghai200237China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092China

The thorough investigation of nanoplastics(NPs)in aqueous environments requires efficient and expeditious quantitative analytical methods that are sensitive to environmentally relevant NP concentrations and convenient to *** analysis-based quantitative methods have been acknowledged as effective and rapid approaches for quantifying NP concentrations in laboratory-scale ***,we compared three commonly used optical response indicators,namely fluorescence intensity(FI),ultraviolet absorbance,and turbidity,to assess their performance in quantifying ***,orthogonal experiments were conducted to evaluate the influence of various water quality parameters on the preferred indicator-based quantification *** results revealed that FI exhibits the highest correlation coefficient(>0.99)with NP ***,the limit of quantification(LOQ)for various types of NPs is exceptionally low,ranging from 0.0089 to 0.0584 mg/L in ultrapure water,well below environmentally relevant *** variations in water quality parameters such as pH,salinity,suspended solids(SS),and humic acid,a robust relationship between detectable FI and NP concentration was ***,an increased matrix,especially SS in water samples,results in an enhanced LOQ for ***,the quantitative method remains applicable in real water bodies,especially in drinking water,with NP LOQ as low as 0.0157–0.0711 mg/*** exceeds the previously reported detectable concentration for 100 nm NPs at 40µg/mL using surface-enhanced Raman *** study confirms the potential of FI as a reliable indicator for the rapid quantification of NPs in aqueous environments,offering substantial advantages in terms of both convenience and cost-effectiveness.

关键词： Nanoplastic quantification Fluorescence intensity Drinking water Limit of quantification(LOQ) Matrix effects

Hybrid Hierarchical Particle Swarm Optimization with Evolutionary Artificial Bee Colony Algorithm for Task Scheduling in Cloud Computing

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Computers, Materials & Continua 2024年第1期78卷 1135-1156页

作者： Shasha zhao Huanwen yan Qifeng lin Xiangnan Feng He Chen Dengyin Zhang College of Internet of Things Nanjing University of Posts and TelecommunicationsNanjing210003China Jiangsu Key Laboratory of Broadband Wireless Communication and Internet of Things Nanjing University of Posts and TelecommunicationsNanjing210003China Tongding Interconnection Information Co. Ltd.Suzhou215000China

Task scheduling plays a key role in effectively managing and allocating computing resources to meet various computing tasks in a cloud computing *** execution time and low load imbalance may be the challenges for some algorithms in resource scheduling *** this work,the Hierarchical Particle Swarm Optimization-Evolutionary Artificial Bee Colony Algorithm(HPSO-EABC)has been proposed,which hybrids our presented Evolutionary Artificial Bee Colony(EABC),and Hierarchical Particle Swarm Optimization(HPSO)*** HPSO-EABC algorithm incorporates both the advantages of the HPSO and the EABC *** testing including evaluations of algorithm convergence speed,resource execution time,load balancing,and operational costs has been *** results indicate that the EABC algorithm exhibits greater parallelism compared to the Artificial Bee Colony *** with the Particle Swarm Optimization algorithm,the HPSO algorithmnot only improves the global search capability but also effectively mitigates getting stuck in local *** a result,the hybrid HPSO-EABC algorithm demonstrates significant improvements in terms of stability and convergence ***,it exhibits enhanced resource scheduling performance in both homogeneous and heterogeneous environments,effectively reducing execution time and cost,which also is verified by the ablation experimental.

关键词： Cloud computing distributed processing evolutionary artificial bee colony algorithm hierarchical particle swarm optimization load balancing

Cross-border E-commerce and China's Exports during the COVID-19 Pandemic

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China & World Economy 2024年第3期32卷 215-242页

作者： Yi Che Meng Yuan yan Zhang lin zhao School of Business East China University of Science and TechnologyChina School of Business Xiangtan UniversityChina School of Economics Shanghai University of Finance and EconomicsChina

China's exports experienced a rapid recovery after the outbreak of the 2019 COVID-19 pandemic.A primary engine was cross-border e-commerce(CBEC)trade,which bucked the downward export trend during the *** exploring the variation in the number of CBEC comprehensive pilot zones across provinces,we identified the causal impact of CBEC on exports using monthly province-product-destination data for 2019 and *** found strong and robust evidence that CBEC contributed to exports during the pandemic by promoting the expansion of incumbent exports(intensive margin)rather than through the expansion of product categories and exporting partners(extensive margin).Specifically,higher pandemic risk suppressed the role of CBEC at the intensive margin while enhancing it at the extensive *** to developed countries benefited more from CBEC,both intensively and *** with final products,a larger number of intermediate products were exported through CBEC after the outbreak of the pandemic.

关键词： China's exports COVID-19 pandemic cross-border e-commerce extensive margin of trade intensive margin of trade

The dispersion of particles in turbulent semi-circular duct flows

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Petroleum Science 2021年第4期18卷 1240-1255页

作者： Min Liu Jun Yao yan-lin zhao International Joint Laboratory on Clean Energy Science and Technology College of Mechanical and Transportation EngineeringChina University of Petroleum-BeijingBeijing102249People's Republic of China Beijing Key Laboratory of Process Fluid Filtration and Separation College of Mechanical and Transportation EngineeringChina University of Petroleum-BeijingBeijing102249People's Republic of China

The flow field in a semi-circular duct is simulated by Large Eddy Simulation(LES)and its particle field is simulated by Lagrange particle tracking *** number Reb(based on bulk velocity and hydraulic diameter)is 80,000 and Ret(based on friction velocity and hydraulic diameter)is *** diameter dpis chosen as 10,50,100,500 mm corresponding to St as 0.10,2.43,9.72,*** results show that the intensity of the secondary flow near the ceiling is less than that near the floor because the ceiling is curved and able to inhibit the secondary *** is found that the difference between the semicircular duct and the square duct is that the secondary flow in a corner of the semi-circular duct is not symmetrical along the diagonal although they have the same generation *** the particles,small particles(dp≤10 mm)are found to uniformly distribute in the duct,while large particles(dp≥50 mm)preferentially distribute in the corner and floor *** maximum particles(dp=500mm)fall on the floor quickly and their dispersion mainly depends on the secondary flow near the *** deposition in the corner depends on particle size due to the effect of secondary flow and *** effect of lift force on particles becomes more significant for 50 and 100 mm particles in comparison with other smaller *** the end,the effect of secondary flow is found to be more significant to dominate particle behavior than that of flow fluctuation.

关键词： Semi-circular duct Secondary flow Particle dispersion Turbulence Large eddy simulation

UniBind:a novel artificial intelligence-based prediction model for SARS-CoV-2 infectivity and variant evolution

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Signal Transduction and Targeted Therapy 2024年第1期9卷 14-15页

作者： Qihong yan Jincun zhao State Key Laboratory of Respiratory Disease National Clinical Research Center for Respiratory DiseaseGuangzhou Institute of Respiratory Healththe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina

In a recent study published in Nature Medicine,Wang et *** an excellent framework called UniBind based on artificial intelligence(AI),which enables accurately predicting infectivity of SARS-CoV-2 variants and evolutionary trends of future viral variants.1 This computational method holds the possibility to not only serve as a valuable early-warning tool for monitoring potential pathogenic SARS-CoV-2 variants but also facilitate fundamental research on protein-protein interactions(PPIs).

关键词： artificial Bind prediction

Proactive Resilience Enhancement of Power Systems with link Transmission Model-based Dynamic Traffic Assignment Among Electric Vehicles

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CSEE Journal of Power and Energy Systems 2024年第3期10卷 1320-1330页

作者： Haoyuan yan Tianyang zhao Zhanglei Guan Energy Electricity Research Center Jinan UniversityGuangzhou 510632China Energy Research Institute Nanyang Technological UniversitySingapore IEEE

The rapid development of electric vehicles(EVs)is strengthening the bi-directional interactions between electric power networks(EPNs)and transportation networks(TNs)while providing opportunities to enhance the resilience of power systems towards extreme *** quantify the temporal and spatial flexibility of EVs for charging and discharging,a novel dynamic traffic assignment(DTA)problem is *** DTA problem is based on a link transmission model(LTM)with extended charging links,depicting the interaction between EVs and power *** models the charging rates as continuous variables by an energy boundary *** consider the evacuation requirements of TNs and the uncertainties of traffic conditions,the DTA problem is extended to a two-stage distributionally robust *** is further incorporated into a two-stage distributionally robust unit commitment problem to balance the enhancement of EPNs and the performance of *** problem is reformulated into a mixed-integer linear programming problem and solved by off-the-shelf commercial *** studies are performed on two test *** effectiveness is verified by the numerical results,e.g.,reducing the load shedding amount without increasing the unmet traffic demand.

关键词： Coupled transportation and power network link transmission model resilience enhancement