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Investigation of spatiotemporal distribution and formation mechanisms of ozone pollution in eastern Chinese cities applying convolutional neural network

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Journal of Environmental Sciences 2025年第2期148卷 126-138页

作者： qiaoli wang Dongping Sheng Chengzhi Wu Xiaojie Ou Shengdong Yao Jingkai Zhao Feili Li Wei Li Jianmeng Chen 无 College of Environment Zhejiang University of TechnologyHangzhou 310032China Key Laboratory of Biomass Chemical Engineering of the Ministry of Education Institute of Industrial Ecology and EnvironmentCollege of Chemical and Biological EngineeringZhejiang University(Zijingang Campus)Hangzhou 310027China Trinity Consultants Inc.(China office)Hangzhou 310012China Zhejiang University of Science&Technology Hangzhou 310023China

Severe ground-level ozone(O_(3))pollution over major Chinese cities has become one of the most challenging problems,which have deleterious effects on human health and the sustainability of *** study explored the spatiotemporal distribution characteristics of ground-level O_(3) and its precursors based on conventional pollutant and meteorological monitoring data in Zhejiang Province from 2016 to ***,a high-performance convolutional neural network(CNN)model was established by expanding the moment and the concentration variations to general ***,the response mechanism of O_(3) to the variation with crucial influencing factors is explored by controlling variables and interpolating target *** results indicated that the annual average MDA8-90th concentrations in Zhejiang Province are higher in the northern and lower in the *** the wind direction(WD)ranges from east to southwest and the wind speed(WS)ranges between 2 and 3 m/sec,higher O_(3) concentration prone to *** different temperatures(T),the O_(3) concentration showed a trend of first increasing and subsequently decreasing with increasing NO_(2) concentration,peaks at the NO_(2) concentration around 0.02mg/m^(3).The sensitivity of NO_(2) to O_(3) formation is not easily affected by temperature,barometric pressure and dew point ***,there is a minimum IRNO_(2) at each temperature when the NO_(2) concentration is 0.03 mg/m^(3),and this minimum IRNO_(2) decreases with increasing *** study explores the response mechanism of O_(3) with the change of driving variables,which can provide a scientific foundation and methodological support for the targeted management of O_(3) pollution.

关键词： Ozone Spatiotemporal distribution Convolutional neural network Ozone formation rules Incremental reactivity

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Novel oxygen-enrichment method using annular air curtain for single-head roadway of plateau mine

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Building Simulation 2023年第7期16卷 1097-1113页

作者： Zijun Li Rongrong Li Yu Xu qiaoli wang School of Resources&Safety Engineering Central South UniversityChangsha 410083China

The low-oxygen environment restricts the exploitation of mineral resources on plateaus and affects miner’s *** paper proposes an oxygen-enrichment method using an annular air *** numerical simulation and experiments,it was confirmed that the proposed method improves the breathing environment in the single-head roadway of a plateau *** fluid dynamics(CFD)was used to investigate the oxygen-enriching effect and oxygen spatial distribution regularities after using the proposed oxygen-enrichment method in the single-head roadway of a plateau *** reliability of the CFD model was confirmed by *** testing was conducted to investigate the influence degree and optimal level combination of factors influencing oxygen *** results demonstrate that the annular air curtain effectively prevented oxygen loss,thus forming a local oxygen-rich space and improving the effective utilization rate of *** supply concentration and velocity are positively correlated with the oronasal oxygen mass fraction through a linear function,while the air curtain outlet wind velocity is negatively correlated with the oronasal oxygen mass fraction through a linear *** annular air curtain diameter and oronasal oxygen mass fraction do not have an obvious functional *** the annular air curtain diameter was greater than 0.9 m,the oronasal oxygen mass fraction was stable at approximately 25.30%.The influencing factors of the novel oxygen-enrichment method are,in descending order,as follows:oxygen supply concentration,annular air curtain diameter,air curtain outlet wind velocity,and oxygen supply *** optimal level combination is oxygen supply concentration of 100%,oxygen supply velocity of 11 m/s,air curtain outlet wind velocity of 1.5 m/s,and annular air curtain diameter of 0.9 m.

关键词： plateau mine heading face oxygen enrichment air curtain CFD method

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超临界二氧化碳联用分子蒸馏萃取的艾叶精油成分分析及其生物活性探究

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暨南大学学报(自然科学与医学版) 2025年第1期46卷 70-81页

作者：梁峰郭玉英王巧利仵峰王一飞暨南大学生命科学技术学院细胞生物学系广东广州510632 桐柏县茶艾产业发展中心河南南阳474750 国家中药现代化工程技术研究中心艾草分中心广东广州510632

目的:分析超临界二氧化碳联用分子蒸馏萃取的艾叶精油化学成分并对其抑菌、抗炎、抑制酪氨酸酶活性进行评价,指导艾叶精油在外用制剂中的应用。方法:通过超临界二氧化碳联用分子蒸馏来萃取艾叶精油;利用气相-质谱联用法(gas chromatogra... 详细信息

目的:分析超临界二氧化碳联用分子蒸馏萃取的艾叶精油化学成分并对其抑菌、抗炎、抑制酪氨酸酶活性进行评价,指导艾叶精油在外用制剂中的应用。方法:通过超临界二氧化碳联用分子蒸馏来萃取艾叶精油;利用气相-质谱联用法(gas chromatography-mass spectrometry,GC-MS)分析艾叶精油的化学成分;采用滤纸片扩散法检测艾叶精油对金黄色葡萄球菌、大肠埃希氏菌、表皮葡萄球菌、绿脓杆菌、白念珠菌等5株供试菌的抑菌活性,采用微量二倍稀释法检测其最小抑菌浓度(minimum inhibitory concentration,MIC)和最小杀菌浓度(minimum bactericidal concentration,MBC);基于脂多糖(lipopolysaccharide,LPS)诱导的巨噬细胞(RAW264.7细胞)炎症模型来考察艾叶精油对炎症因子白细胞介素-1β(interleukin-1β,IL-1β)、白细胞介素-6(interleukin-6,IL-6)、肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)、诱导型一氧化氮合酶(inducible nitric oxide synthase,iNOS)的mRNA表达水平的影响;基于人黑色素瘤细胞(A375细胞)模型来评价艾叶精油对酪氨酸酶活性和黑色素生成的影响。结果:从艾叶精油中共鉴定出132种化合物,其主要成分有α-松油醇(7.08%)、4-萜烯醇(6.45%)、β-石竹烯(5.83%)、桉油精(4.82%)、右旋龙脑(4.54%)、2-环己烯醇(3.82%)、右旋樟脑(3.09%)、香芹醇(1.49%)、α-侧柏酮(0.75%);艾叶精油对5株供试菌均表现出明显的抑菌活性,其中对白念珠菌呈高度敏感,对金黄色葡萄球菌、大肠埃希氏菌、表皮葡萄球菌、绿脓杆菌、白念珠菌的MIC分别为1.88、3.75、7.50、15.00、0.94 mg/mL,MBC分别为1.88、7.50、15.00、30.00、1.88 mg/mL;艾叶精油能显著降低RAW264.7细胞IL-1β、IL-6、TNF-α、iNOS的mRNA表达水平(P<0.05);艾叶精油可显著抑制A375细胞中酪氨酸酶活性(P<0.05),使黑色素的生成明显减少(P<0.05)。结论:超临界二氧化碳联用分子蒸馏萃取的艾叶精油化学成分丰富,具有良好的抑菌、抗炎、酪氨酸酶活性抑制作用,值得深入研究其应用价值。

关键词：艾叶精油气相-质谱联用法抑菌抗炎抑制酪氨酶活性

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Sex bias in FGFR3 somatic mutations in bladder cancer

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Oncology and Translational Medicine 2024年第5期10卷 252-256页

作者： Xiangyu Meng qiaoli wang Health Science Center HubeiMinzuUniversityEnshiChina Department of Medical Oncology Dana-Farber Cancer Institute and Harvard Medical SchoolBostonMA

Background:Strong sex disparities have been observed among patients with bladder cancer(BCa).FGFR3 is one of the most frequently mutated genes in bladder cancer,and there are inconsistencies in its frequency in male and female ***:Here,we conducted a meta-analysis comparing the FGFR3 somatic mutation frequency in men and women among 7351 patients with BCa from 18 ***:We showed that female patients had a 1.32 times higher risk of having FGFR3 somatic mutations than *** difference was attributed to mutations occurring at the 2 most frequently mutated sites,S249 and ***,nonsense mutations were more likely to be found in women,whereas indel/frameshift mutations were almost exclusively found in men;however,no difference was noted for missense ***:A female sex bias in FGFR3 somatic mutationswas observed in ***-powered individual participant data analyses addressing the possible confounding effects of other factors(eg,age,ethnicity,smoking status,muscle invasiveness,and molecular subtype),as well as analyses integrating omics and functional investigations,are warranted to further validate and explain the mechanisms of the current findings.

关键词： bladder cancer FGFR3 sex bias somatic mutations

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针刺调节Fas/FasL信号通路对缺血性卒中后大鼠神经损伤的影响

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上海针灸杂志 2025年第1期44卷 110-116页

作者：黄坤王巧利高嘉彬王海波四川中医药高等专科学校绵阳621000 成都中医药大学成都610075

目的通过观察针刺对凋亡相关因子Fas/FasL信号通路的影响,探索针刺对缺血性卒中(ischemic stroke,IS)后大鼠神经损伤的影响。方法将60只SD大鼠随机分为对照组、模型组、针刺组和尼莫地平组,每组15只。以大脑中动脉闭塞法构建大鼠IS模型... 详细信息

目的通过观察针刺对凋亡相关因子Fas/FasL信号通路的影响,探索针刺对缺血性卒中(ischemic stroke,IS)后大鼠神经损伤的影响。方法将60只SD大鼠随机分为对照组、模型组、针刺组和尼莫地平组,每组15只。以大脑中动脉闭塞法构建大鼠IS模型,针刺组取百会、水沟、大椎、内关、三阴交穴针刺干预,尼莫地平组给予尼莫地平灌胃,对照组和模型组大鼠正常喂养。对各组大鼠进行神经功能缺损评分,2,3,5-氯化三苯基四氮唑染色观测脑梗死体积,尼氏染色观察神经元损伤,原位末端标记法检测神经元细胞凋亡,免疫组化观测Fas、含半胱氨酸的天冬氨酸蛋白水解酶-3(cysteine aspartate-specific protease-3,caspase-3)表达,蛋白质印迹法(Western blot,WB)法检测Fas、Fas配体(fas ligand,FasL)、caspase-3和含半胱氨酸的天冬氨酸蛋白水解酶-8(cysteine aspartate-specific protease-8,caspase-8)蛋白表达。结果与对照组比较,模型组大鼠神经元细胞皱缩,排列松散,尼氏体含量减少,神经功能缺损评分、脑组织含水量、脑梗死体积、神经元细胞凋亡率、Fas、FasL、caspase-3和caspase-8蛋白表达显著升高(P<0.05);与模型组比较,针刺组和尼莫地平组神经元细胞形态有所恢复,尼氏体含量增加,神经功能缺损评分、脑组织含水量、脑梗死体积、神经元细胞凋亡率、Fas、FasL、caspase-3和caspase-8蛋白表达显著降低(P<0.05)。结论针刺能改善IS后大鼠神经损伤,减少神经元凋亡,其作用机制可能与抑制Fas/FasL信号通路有关。

关键词：针刺疗法缺血性卒中神经损伤信号传导大鼠

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黄粉虫粉抗小鼠腹泻的研究

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动物营养学报 2025年第1期37卷 581-593页

作者：柳婷婷王巧利马艳王政力朱建军陈帅虎高明阳赵洪峰王思佳申红王俊刚石河子大学动物科技学院石河子832061

在腹泻小鼠的基础饲粮中添加不同剂量的黄粉虫粉,以探究其对小鼠腹泻的改善作用。选取体重相近、健康状况良好的昆明小鼠75只,随机分为5组,每组3个重复,每个重复5只。试验前5 d为建模期,均饲喂基础饲粮,模型组及高、中、低剂量组连续腹... 详细信息

在腹泻小鼠的基础饲粮中添加不同剂量的黄粉虫粉,以探究其对小鼠腹泻的改善作用。选取体重相近、健康状况良好的昆明小鼠75只,随机分为5组,每组3个重复,每个重复5只。试验前5 d为建模期,均饲喂基础饲粮,模型组及高、中、低剂量组连续腹腔注射剂量为0.02 mL/g、浓度为3×10^(8) CFU/mL的大肠杆菌悬液以建立腹泻模型,空白组注射0.02 mL/g的生理盐水。试验第6~15天为治疗期,高、中、低剂量组分别饲喂在基础饲粮中添加8.0%、5.0%、2.5%的黄粉虫粉的试验饲粮,空白组和模型组饲喂基础饲粮。治疗期结束后检测腹泻小鼠的采食量、体重、腹泻率、稀便率、免疫器官指数、回肠、盲肠、结肠中大肠杆菌和总菌数量及肠道和血清酶活性。结果表明:第15天时,与模型组相比,高、中剂量组腹泻小鼠的采食量、饮水量和体重都显著提高(P<0.05),稀便率和腹泻率逐渐降低;随着黄粉虫粉添加量的增加,腹泻小鼠肠道内的总菌数量及大肠杆菌数量显著降低(P<0.05)。与模型组相比,高、中剂量组盲肠的过氧化物酶(POD),结肠的脂肪酶(LPS),回肠的过氧化氢酶(CAT)、乙酰胆碱酯酶(ACHe)、LPS活性显著提高(P<0.05),高剂量组盲肠的LPS、结肠的ACHe活性显著提高(P<0.05)。与模型组相比,高剂量组血清LPS、谷胱甘肽转移酶(GSH)、酸性磷酸酶(ACP)、CAT、POD和高、中剂量组血清乳酸脱氢酶(LDH)、淀粉酶(AMS)及3个剂量组血清超氧化物歧化酶(SOD)、ACHe活性均显著提高(P<0.05)。综上所述,以黄粉虫粉作为饲料添加剂可以提高腹泻小鼠的体重、采食量、饮水量和免疫器官指数,降低腹泻小鼠体内的大肠杆菌和总菌数量,同时提高腹泻小鼠血清、结肠、盲肠和回肠中抗氧化酶、解毒酶和消化酶活性。本试验条件下,8.0%黄粉虫粉添加量效果最佳。

关键词：黄粉虫粉小鼠腹泻大肠杆菌血清酶肠道酶

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An integrated chemical mass balance and source emission inventory model for the source apportionment of PM2.5 in typical coastal areas

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Journal of Environmental Sciences 2020年第6期32卷 118-128页

作者： Nana Cheng Cheng Zhang Deji Jing Wei Li Tianjiao Guo qiaoli wang Sujing Li Key Laboratory of Biomass Chemical Engineering of the Ministry of Education Institute of Industrial Ecology and EnvironmentCollege of Chemical and Biological EngineeringZhejiang University(Yuquan Campus)Hangzhou310027China

The source apportionment of PM2.5 is essential for pollution *** view of the weaknesses of individual models,we proposed an integrated chemical mass balancesource emission inventory(CMB-SEI)model to acquire more accurate ***,the SEI of secondary component precursors(SO2,NOx,NH3,and VOCs)was compiled to acquire the emission ratios of these sources for the ***,a regular CMB simulation was executed to obtain the contributions of primary particle sources and secondary components(SO4^2-,NO3^-3,NH4^+,and SOC).Afterwards,the contributions of secondary components were apportioned into primary sources according to the source emission *** final source apportionment results combined the contributions of primary sources by CMB and *** integrated approach was carried out via a case study of three coastal cities(Zhoushan,Taizhou,and Wenzhou;abbreviated WZ,TZ,and ZS)in Zhejiang Province,*** regular CMB simulation results showed that PM2.5 pollution was mainly affected by secondary components and mobile *** SEI results indicated that electricity,industrial production and mobile sources were the largest contributors to the emission of PM2.5 gaseous *** simulation results of the CMB-SEI model showed that PM2.5 pollution in the coastal areas of Zhejiang Province presented complex pollution characteristics dominated by mobile sources,electricity production sources and industrial production *** to the results of the CMB and SEI models alone,the CMB-SEI model completely apportioned PM2.5 to primary sources and simultaneously made the results more accurate and reliable in accordance with local industrial characteristics.

关键词： Integrated model Chemical mass balance Source emission inventory Source apportionment PM2.5

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西天山自然保护区森林-草原交错带-土壤动物群落分布特征

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生态学杂志 2025年第2期44卷 425-433页

作者：闫江超崔东吕立琴江智诚张敏如刘江慧曹敬王巧莉伊犁师范大学资源与生态研究所新疆伊宁835000 伊犁师范大学生物科学与技术学院新疆伊宁835000 伊犁师范大学资源与环境学院新疆伊宁835000

选择西天山自然保护区森林-草原交错带中乔木、灌木、草本植物、灌木+草本植物4种典型植被类型为研究对象,用手捡法采集大型土壤动物,用干漏斗法采集中小型土壤动物,分析不同植被类型对土壤动物群落特征的影响。结果表明:4种植被类型土... 详细信息

选择西天山自然保护区森林-草原交错带中乔木、灌木、草本植物、灌木+草本植物4种典型植被类型为研究对象,用手捡法采集大型土壤动物,用干漏斗法采集中小型土壤动物,分析不同植被类型对土壤动物群落特征的影响。结果表明:4种植被类型土壤动物优势类群为等节跳虫科、辐螨亚目、甲螨亚目、革螨亚目;乔木林土壤动物类群数、密度以及多样性、丰富度和均匀度指数为各生境最高。不同植被类型土壤动物在垂直方向上呈表聚性;土壤有机质、全磷、含水量等因子与土壤动物之间存在显著的正相关性,RDA分析显示铵态氮、全氮、速效钾等是影响土壤动物群落组成的主要限制因素。

关键词：土壤动物森林-草原交错带植被类型西天山自然保护区群落特征

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A novel approach for VOC source apportionment combining characteristic factor and pattern recognition technology in a Chinese industrial area

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Journal of Environmental Sciences 2022年第11期34卷 25-37页

作者： Deji Jing Nana Cheng Cheng Zhang Ziwei Chen Xingnong Cai Sujing Li Jingkai Zhao qiaoli wang Wei Li Key Laboratory of Biomass Chemical Engineering of the Ministry of Education Institute of Industrial Ecology and EnvironmentCollege of Chemical and Biological EngineeringZhejiang University(Yuquan Campus)Hangzhou 310027China College of Environment Zhejiang University of TechnologyHangzhou 310032China

Volatile organic compound(VOC) emission control and source apportionment in small-scale industrial areas have become key topics of air pollution control in China. This study proposed a novel characteristic factor and pattern recognition(CF-PR) model for VOC source apportionment based on the similarity of characteristic factors between sources and receptors.A simulation was carried out in a typical industrial area with the CF-PR model involving simulated receptor samples. Refined and accurate source profiles were constructed through in situ sampling and analysis, covering rubber, chemicals, coating, electronics, plastics, printing, incubation and medical treatment industries. Characteristic factors of n-undecane,styrene, o-xylene and propane were identified. The source apportionment simulation results indicated that the predicted contribution rate was basically consistent with the real contribution rate. Compared to traditional receptor models, this method achieves notable advantages in terms of refinement and timeliness at similar accuracy, which is more suitable for VOC source identification and apportionment in small-scale industrial areas.

关键词： VOC Source apportionment Characteristic factors Pattern recognition Industrial areas

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DBT parameters and dynamic monitoring during reservoir development, and distribution region prediction of remaining oil:A case study on the Sha-3~3 oil reservoir in the Liubei region, Nanpu sag

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Science China Earth Sciences 2012年第7期55卷 2018-2025页

作者： XU YaoHui wang TieGuan CHEN NengXue YANG CuiMin wang qiaoli State Key Laboratory of Petroleum Resources and Prospecting China University of PetroleumBeijing 102249China Department of Geochemistry Yangtze UniversityJingzhou 434023China Research Institute of Petroleum Exploration and Development Jidong OilfieldCNPCTangshan 063000China Chongqing Institute of Geology and Mineral Resources Chongqing 400042China

In this study, compositional characteristics of crude oil, including the variation of aliphatic, aromatic and pyrrolic nitrogen compounds, were systematically monitored and investigated in a high water-cut oil reservoir over a short *** results showed that among the widely used parameters indicative of oil maturity and migration, tetramethyl/monomethyl DBT and tricyclic terpane/(tricyclic terpane+C30 hopanoid) varied remarkably, and a positive correlation was observed between these two *** variation of each of these parameters during waterflooding development was correlated with the flow effect of crude promoted by the water drive in oil reservoirs.A solid consistency was observed among the results of numerical simulation and development; the direction and pathway of waterflooding crude was indicated by Tetramethyl/monomethyl DBT, and the distribution region prediction of remaining oil hereby ***, these two parameters could be used as molecular tracers for the oil during *** study would be of practical significance for geochemical dynamic monitoring and reservoir development.

关键词： DBT parameters geochemical dynamic monitoring distribution of remaining oil crude promoting Sha-33 oil reservoir in Liubei region

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