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学者姓名:曾悦
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为探究高校实验室事故与各因素之间的复杂因果关系,该文基于模糊集定性比较分析方法,揭示不同条件组态对实验室事故产生的影响机制。首先,以“人-机-环-管”的安全管理体系为基础,构建针对高校实验室事故影响因素的分析框架,然后,从30起典型事故案例中提取6个条件变量,用于分析事故发生的条件组态。分析结果表明管理条件缺失或仪器设备故障是影响事故发生的核心条件,人的事前行为和事故应急处置通常作为事故发生边缘条件出现。最后,结合各种组态类型所展现出的规律提出了实验室安全管理建议,以期为实验室安全管理提供新视角。
Keyword :
安全管理 安全管理 模糊集定性比较分析(fsQCA) 模糊集定性比较分析(fsQCA) 组态路径 组态路径 高校实验室 高校实验室
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GB/T 7714 | 阳富强 , 尹航 , 黄宗侯 et al. 基于fsQCA方法的高校实验室事故影响因素分析 [J]. | 实验技术与管理 , 2024 , 41 (03) : 257-262 . |
MLA | 阳富强 et al. "基于fsQCA方法的高校实验室事故影响因素分析" . | 实验技术与管理 41 . 03 (2024) : 257-262 . |
APA | 阳富强 , 尹航 , 黄宗侯 , 曾悦 . 基于fsQCA方法的高校实验室事故影响因素分析 . | 实验技术与管理 , 2024 , 41 (03) , 257-262 . |
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由水库建设引起的河流湖库化和富营养化,是全球普遍面临的重大生态环境问题.而内源污染负荷过大会加剧水库富营养化和水质恶化的风险.因缺乏亚热带河道型水库沉积物中内源磷污染解析,本文采用薄膜扩散梯度(DGT)和高分辨率渗析技术(HR-Peeper)以原位、高分辨率技术对河道型深水水库闽江水口水库中磷(P)、铁(Fe)、锰(Mn)、硫(S)进行监测,并研究河道型水库P-Fe-Mn-S的地球化学耦合机制以及磷的赋存形态和迁移释放机制.结果表明:氢氧化钠提取磷(NaOH-P)是沉积物中磷形态的主要形式,铁结合态磷是控制沉积物磷释放的关键因素,水口水库水体和沉积物营养化程度高,沉积物内源磷污染较严重;在垂直剖面上,沉积物中的P与Fe、Mn、S呈显著正相关,铁锰氧化物的还原溶解和硫酸盐还原有利于磷活化和释放;沉积物中P、Fe、Mn、S会形成正释放从而扩散到上覆水中,在水库开闸和泄洪期间,对流会暂时打破分层,内源磷的释放高于多数天然浅水湖库,这突出了河道型水库内源磷污染治理的重要性和紧迫性.
Keyword :
扩散通量 扩散通量 水口水库 水口水库 沉积物-水界面 沉积物-水界面 磷-硫-铁-锰耦合 磷-硫-铁-锰耦合 薄膜扩散梯度技术 薄膜扩散梯度技术 高分辨渗析技术 高分辨渗析技术
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GB/T 7714 | 曹文珍 , 曾悦 , 张玉珍 et al. 亚热带河道型水库沉积物-水界面磷赋存形态与迁移转化机制 [J]. | 环境科学学报 , 2024 , 44 (01) : 299-310 . |
MLA | 曹文珍 et al. "亚热带河道型水库沉积物-水界面磷赋存形态与迁移转化机制" . | 环境科学学报 44 . 01 (2024) : 299-310 . |
APA | 曹文珍 , 曾悦 , 张玉珍 , 李云琴 , 潘文斌 , 陈锦 et al. 亚热带河道型水库沉积物-水界面磷赋存形态与迁移转化机制 . | 环境科学学报 , 2024 , 44 (01) , 299-310 . |
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Heavy metals in dust have been found to be a significant threat to human health, but how dust sources and physicochemical properties influence the distribution of heavy metals has not been fully investigated. Fuzhou, a Chinese subtropical city, was chosen as a case in this study. We collected 51 dust samples from open spaces, in order to serve as an early warning system for heavy metals in urban dust, the risk level of heavy metal pollution was assessed, the physicochemical properties of dust were analyzed, and the sources of heavy metals were examined using a combination of positive matrix factorization (PMF) and backward trajectory model (MeteoInfo). The results showed that the average concentrations of heavy metals were Zn > Pb > Cr > Cu > Ni > As > Cd, with Cd having the highest ecological risk level. All heavy metals are positively correlated, the higher the organic matter and the larger the particle size, the higher the heavy metal concentration. The higher the water content, the higher the Ni and Cu content. The sources of heavy metals in dust are complex and include local anthropogenic sources: traffic, architectural paint, combustion, and mixed sources, as well as the impact of atmospheric motion on dust from northern cities in Fuzhou City and Zhejiang Province. Our study provides a valuable point of reference for early warning of urban heavy metal.
Keyword :
Dust Dust Early warning Early warning Heavy metals Heavy metals MeteoInfo MeteoInfo Physicochemical properties Physicochemical properties PMF PMF
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GB/T 7714 | Zeng, Yue , Jiang, Yajie , Li, Yunqin et al. Early warning of urban heavy metal pollution based on PMF- MeteoInfo model combined with physicochemical properties of dust [J]. | STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT , 2024 , 38 (4) : 1541-1556 . |
MLA | Zeng, Yue et al. "Early warning of urban heavy metal pollution based on PMF- MeteoInfo model combined with physicochemical properties of dust" . | STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT 38 . 4 (2024) : 1541-1556 . |
APA | Zeng, Yue , Jiang, Yajie , Li, Yunqin , Xu, Xiang , Zhang, Xinying , Yu, Wei et al. Early warning of urban heavy metal pollution based on PMF- MeteoInfo model combined with physicochemical properties of dust . | STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT , 2024 , 38 (4) , 1541-1556 . |
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Potential toxic metal (PTM) is hazardous to human health, but the mechanism of spatial heterogeneity of PTM at a macro-scale remains unclear. This study conducts a meta-analysis on the data of PTM concentrations in the soil of 164 major cities in China from 2006 to 2021. It utilizes spatial analysis methods and geodetector to investigate the spatial distribution characteristics of PTMs. The geographic information systems (GIS) and geodetector were used to investigate the spatial distribution characteristics of PTMs, assess the influence of natural factors (NFs) and anthropogenic factors (AFs) on the spatial heterogeneity of PTMs in urban soils, and identified the potential pollution areas of PTMs. The results indicated that the pollution levels of PTMs in urban soils varied significantly across China, with higher pollution levels in the south than in the north. Cd and Hg were the most severely contaminated elements. The geodetector analysis showed that temperature and precipitation in NFs and land use type in AFs were considered as the main influencing factors, and that both AF and NF together led to the PTM variation. All these factors showed a mutually enhancing pattern which has important implications for urban soil management. PTM high-risk areas were identified to provide early warning of pollution risk under the condition of climate change.
Keyword :
Geodetector Geodetector High-risk areas High-risk areas Influencing factors Influencing factors Potential toxic metal Potential toxic metal Urban soil Urban soil
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GB/T 7714 | Zeng, Yue , Liu, Xinyu , Li, Yunqin et al. Analysis of driving factors for potential toxic metals in major urban soils of China: a geodetetor-based quantitative study [J]. | ENVIRONMENTAL GEOCHEMISTRY AND HEALTH , 2024 , 46 (10) . |
MLA | Zeng, Yue et al. "Analysis of driving factors for potential toxic metals in major urban soils of China: a geodetetor-based quantitative study" . | ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 46 . 10 (2024) . |
APA | Zeng, Yue , Liu, Xinyu , Li, Yunqin , Jin, Zhifan , Shui, Wei , Wang, Qianfeng . Analysis of driving factors for potential toxic metals in major urban soils of China: a geodetetor-based quantitative study . | ENVIRONMENTAL GEOCHEMISTRY AND HEALTH , 2024 , 46 (10) . |
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以CNKI与Web of ScienceTM(WOS)核心合集中2002-2020 年Visual MINTEQ(VM)为主题的文献作为数据来源,借助CiteSpace,从发文量、国家、机构、作者和研究热点等方面整理、归纳并评述VM在重金属形态研究中的运用热点及趋势.结果表明:1)发文量呈逐年波动增长趋势,中国的国际影响力最高,布-阿里大学、中国科学院、浙江大学软弱土与环境土工教育部重点实验室等为主要中英文发文机构,Gustafsson J P被引频次最高,作者间以国内协作为主.2)VM在重金属形态研究中的使用热点主要在模拟不同环境因子对水/土环境介质中重金属形态影响和不同水/土环境介质中重金属矿物的沉淀或溶解,以及使用 DLM、CD-MUSIC、NICA-Donnan等表面络合模型计算处理不同吸附行为.3)VM将来还可运用于沉积物中重金属迁移、生物体内重金属毒理性及大气中痕量金属络合等方面研究.
Keyword :
CiteSpace CiteSpace Visual MINTEQ Visual MINTEQ 形态 形态 水土环境 水土环境 重金属 重金属
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GB/T 7714 | 吴名秀 , 曾悦 , 李云琴 et al. Visual MINTEQ在水/土环境重金属形态研究中的应用与展望 [J]. | 福州大学学报(自然科学版) , 2023 , 51 (4) : 574-581 . |
MLA | 吴名秀 et al. "Visual MINTEQ在水/土环境重金属形态研究中的应用与展望" . | 福州大学学报(自然科学版) 51 . 4 (2023) : 574-581 . |
APA | 吴名秀 , 曾悦 , 李云琴 , 金晓英 , 陈志波 , 张新颖 . Visual MINTEQ在水/土环境重金属形态研究中的应用与展望 . | 福州大学学报(自然科学版) , 2023 , 51 (4) , 574-581 . |
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诱发肺(呼吸)毒性/疾病是空气污染物暴露对人类健康的主要威胁。表观遗传修饰与肺(呼吸)功能密切相关,其在空气污染物暴露致肺(呼吸)毒性中的作用机制已引起广泛关注。该文综述了颗粒物、香烟烟雾、柴油机尾气及其他空气污染物通过调控表观遗传修饰(DNA甲基化、组蛋白修饰、ncRNAs等)诱导肺(呼吸)毒性的机制研究进展,指出空气污染物暴露可改变生物体的表观遗传修饰特征,导致相关基因表达失调、炎症反应、细胞凋亡、DNA损伤,从而诱发一系列肺(呼吸)毒性/疾病,并总结目前研究中存在的不足,提出未来研究方向的建议,希望为后续相关研究提供参考。
Keyword :
分子机制 分子机制 空气污染物 空气污染物 肺(呼吸)毒性 肺(呼吸)毒性 表观遗传 表观遗传
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GB/T 7714 | 曹美宜 , 曾悦 , 黄清育 . 空气污染物诱导肺(呼吸)毒性的表观遗传机制研究进展 [J]. | 环境科学与技术 , 2023 , 46 (05) : 88-97 . |
MLA | 曹美宜 et al. "空气污染物诱导肺(呼吸)毒性的表观遗传机制研究进展" . | 环境科学与技术 46 . 05 (2023) : 88-97 . |
APA | 曹美宜 , 曾悦 , 黄清育 . 空气污染物诱导肺(呼吸)毒性的表观遗传机制研究进展 . | 环境科学与技术 , 2023 , 46 (05) , 88-97 . |
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This study investigates the relationship between the spatial distribution patterns of heavy metals (HMs) in atmospheric fine particulate matter (PM2.5) and their influencing factors in China, in order to address air pollution problems. Using HM data from PM2.5 collected from 88 Chinese cities between 2012 and 2020, the study employed a combination of enrichment factor (EF) analysis, standard deviation ellipses and hot spot analysis to assess spatial distribution patterns; geographical detectors to identify influencing factors; and hybrid singleparticle Lagrangian integrated trajectory models (HYSPLIT) to determine air mass movement. The results reveal that the spatial distribution of PM2.5-bound HMs in China is characterized by high levels in the north and interior and low levels in the south and along the coast. Anthropogenic activities affect HM levels in China's interior more strongly than on the coast. Moreover, the distribution of PM2.5-bound HMs in China exhibits a northeast-southwest spatial pattern, with significantly higher levels observed in central and northern regions than in eastern regions, particularly along the coast. Industrial waste emissions and energy consumption are key factors contributing to high PM2.5-bound HMs. In central China, the summer air mass movement predominantly follows a southeast direction, while in winter, it follows a northwest direction, originating from inland. In contrast, in eastern China, summer air mass movement predominantly follows a southeast direction, while in winter, it follows a northeast direction, originating from the ocean. Overall, our findings suggest that HMs in PM2.5 display high clustering values in central China, due primarily to industrial waste emissions, energy consumption, and air mass movement.
Keyword :
Geographical detector Geographical detector Heavy metal Heavy metal HYSPLIT Model HYSPLIT Model Influencing factors Influencing factors PM2.5 PM2.5 Spatial patterns Spatial patterns
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GB/T 7714 | Zeng, Yue , Ning, Xiannan , Li, Yunqin et al. Spatial patterns of PM2.5-bound heavy metals and analysis of their influencing factors in China [J]. | ANTHROPOCENE , 2023 , 44 . |
MLA | Zeng, Yue et al. "Spatial patterns of PM2.5-bound heavy metals and analysis of their influencing factors in China" . | ANTHROPOCENE 44 (2023) . |
APA | Zeng, Yue , Ning, Xiannan , Li, Yunqin , Wang, Qianfeng , Zhang, Xinying . Spatial patterns of PM2.5-bound heavy metals and analysis of their influencing factors in China . | ANTHROPOCENE , 2023 , 44 . |
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Karst tiankengs are rare natural habitats, having a local microclimate different from surrounding regions. A contrast study on plant communities at the inside and outside of the primitive tiankeng was carried out by performing the qualitative analysis of species compositions of arborous and shrub layers. We found that plant communities in the primitive tiankeng belong to the subtropical moist evergreen broad-leaf forest, whereas those outside the tiankeng belong to subtropical semi-moist needle-broadleaved mixed forest. Trapped habitat of primitive karst tiankeng protects the plant communities significantly different from those in external karst ecosystems, so karst tiankeng has the great value in the plant species protection. Although the trapped habitat decreases plant species abundance inside tiankeng to some extent, highly diverse shrub species are present in the inside-tiankeng plant communities, and the primitive karst tiankeng plays an important role in the plant diversity protection. The primitive karst tiankeng is an important refugia for plant not only as a plant species protection library, but a plant diversity protection library. When implementing measures for the reduction of damages to biodiversity due to global climate changes and human activities, more attention should be paid to the primitive karst tiankeng as a small ecological refugia and biodiversity protection library.
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GB/T 7714 | Shui, Wei , Chen, Yiping , Jian, Xiaomei et al. Original karst tiankeng with underground virgin forest as an inaccessible refugia originated from a degraded surface flora in Yunnan, China [J]. | SCIENTIFIC REPORTS , 2022 , 12 (1) . |
MLA | Shui, Wei et al. "Original karst tiankeng with underground virgin forest as an inaccessible refugia originated from a degraded surface flora in Yunnan, China" . | SCIENTIFIC REPORTS 12 . 1 (2022) . |
APA | Shui, Wei , Chen, Yiping , Jian, Xiaomei , Jiang, Cong , Wang, Qianfeng , Zeng, Yue et al. Original karst tiankeng with underground virgin forest as an inaccessible refugia originated from a degraded surface flora in Yunnan, China . | SCIENTIFIC REPORTS , 2022 , 12 (1) . |
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以实际废水和活性污泥为研究对象,通过构建的序批式好氧-缺氧反应器探究不同质量浓度抗生素甲氧苄啶(TMP)对硝化与反硝化过程的影响。结果表明,低质量浓度(如1.0 mg/L)TMP对除碳、脱氮过程无明显影响,而TMP质量浓度超过2.0 mg/L时,降低了碳源消耗及脱氮性能。当进水TMP质量浓度为8.0 mg/L时,稳定时期COD和NH~+_4-N去除率分别为71.6%~76.5%和75.6%~76.2%,远低于对照组。高质量浓度TMP降低了NH~+_4-N氧化、NO~-_2-N氧化及NO~-_3-N反硝化,提高了NO~-_2-N的积累并且积累量高达6.5 mg/L,远高于对照组。低质量浓度TMP...
Keyword :
反硝化 反硝化 好氧-缺氧反应器 好氧-缺氧反应器 甲氧苄啶 甲氧苄啶 硝化 硝化 酶活性 酶活性
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GB/T 7714 | 李云琴 , 曾悦 . 典型抗生素甲氧苄啶影响下缺氧反硝化脱氮除碳效能的研究 [J]. | 现代化工 , 2022 , 42 (09) : 129-133 . |
MLA | 李云琴 et al. "典型抗生素甲氧苄啶影响下缺氧反硝化脱氮除碳效能的研究" . | 现代化工 42 . 09 (2022) : 129-133 . |
APA | 李云琴 , 曾悦 . 典型抗生素甲氧苄啶影响下缺氧反硝化脱氮除碳效能的研究 . | 现代化工 , 2022 , 42 (09) , 129-133 . |
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The efficient hydrolysis of carbonyl sulfur (COS) is an effective route to solve the damage of COS in industrial gases. A simple solid-phase mechanochemical method was developed to prepare nitrogen-doped carbon catalysts (TOK-X) which were applied into the efficiently catalytic hydrolysis of COS. A series of sheet-stacked nitrogen-doped carbon catalysts with high specific surface area (≥2 600 m2/g) were prepared using P-benzaldehyde and O-phenylenediamine as carbon and nitrogen sources respectively, KOH as activator. The samples were synthesized by the mechanical grinding polymerization and high temperature activation. It was found that the carbonization temperature was a significant effect factor on the catalytic performances of COS hydrolysis. The order of the catalytic activities of the prepared catalysts was TOK-700>TOK-800>TOK-600>TOK-900. Notably, the catalyst (TOK-700) prepared at 700 ℃ of calcination temperature could catalyze the hydrolysis conversion of COS more than 98% at 70 ℃. The characterization results showed that the high activity of the catalyst may be attributed to its high specific surface area and high pyridine nitrogen content. © 2022, Editorial Board of Journal of Chemical Reaction Engineering and Technology. All right reserved.
Keyword :
Carbonyl sulfur Carbonyl sulfur Catalytic hydrolysis Catalytic hydrolysis Nitrogen-doped carbon materials Nitrogen-doped carbon materials Solid phase mechanochemical method Solid phase mechanochemical method
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GB/T 7714 | Zeng, Y. , Mu, G. , Zheng, Y. et al. Preparation of Nitrogen-Doped Carbon Materials and Their Catalytic Performance for Hydrolysis of Carbonyl Sulfur [氮掺杂碳材料的制备及其催化水解羰基硫性能] [J]. | Chemical Reaction Engineering and Technology , 2022 , 38 (5) : 394-401 . |
MLA | Zeng, Y. et al. "Preparation of Nitrogen-Doped Carbon Materials and Their Catalytic Performance for Hydrolysis of Carbonyl Sulfur [氮掺杂碳材料的制备及其催化水解羰基硫性能]" . | Chemical Reaction Engineering and Technology 38 . 5 (2022) : 394-401 . |
APA | Zeng, Y. , Mu, G. , Zheng, Y. , Cao, Y. , Liu, F. , Liang, S. et al. Preparation of Nitrogen-Doped Carbon Materials and Their Catalytic Performance for Hydrolysis of Carbonyl Sulfur [氮掺杂碳材料的制备及其催化水解羰基硫性能] . | Chemical Reaction Engineering and Technology , 2022 , 38 (5) , 394-401 . |
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