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Chinese Journal of Chemistry 2024年第18期42卷 2197-2202页

作者： Jie Wang Hang Qin ya-li song Fei Cao Zhi-Hao You Key Laboratory of Pharmaceutical Quality Controlof Hebei Province College of Pharmaceutical SciencesHebei UniversityBaodingHebei 071002China Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education BaodingHebei 071002China

An efficient and highly stereoselective synthetic method to access polycyclic chromanes has been achieved through organocatalyzed one-pot step-wise reactions involving 2-hydroxycinnamaldehydes,2-aminochalcones,and malononitrile as *** reactions underwent a quintuple process by aza-Michael/Michael/Knoevenagel/oxa-Michael/aldol-type reaction in sequence to give products bearing 3 new generated rings and 5 chiral centers in moderate to quantitative yields with excellent stereoselectivities.

关键词： Asymmetric catalysis Organocatalysis Cyclization Quintuple reaction Polycycles Heterocycles Chromane One-pot reaction

Pollution source identification methods and remediation technologies of groundwater: A review

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China Geology 2024年第1期7卷 125-137页

作者： ya-ci liu Yu-hong Fei ya-song li Xi-lin Bao Peng-wei Zhang Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes Institute of Hydrogeology and Environmental GeologyChinese Academy of Geological SciencesXiamen 361000China Key Laboratory of Water and Soil Resources Conservation and Restoration in the Middle and Lower Reaches of Yellow River Basin MNRZhengzhou 450016China

Groundwater is an important source of drinking *** pollution severely endangers drinking water safety and sustainable social *** the case of groundwater pollution,the top priority is to identify pollution sources,and accurate information on pollution sources is the premise of efficient ***,an appropriate pollution remediation scheme should be developed according to information on pollution sources,site conditions,and economic *** methods for identifying pollution sources mainly include geophysical exploration,geochemistry,isotopic tracing,and numerical *** these identification methods,only the numerical modeling can recognize various information on pollution sources,while other methods can only identify a certain aspect of pollution *** remediation technologies of groundwater can be divided into in-situ and ex-situ remediation technologies according to the remediation *** in-situ remediation technologies enjoy low costs and a wide remediation range,but their remediation performance is prone to be affected by environmental conditions and cause secondary *** ex-situ remediation technologies boast high remediation efficiency,high processing capacity,and high treatment concentration but suffer high *** methods for pollution source identification and remediation technologies are applicable to different *** achieve the expected identification and remediation results,it is feasible to combine several methods and technologies according to the actual hydrogeological conditions of contaminated sites and the nature of ***,detailed knowledge about the hydrogeological conditions and stratigraphic structure of the contaminated site is the basis of all work regardless of the adopted identification methods or remediation technologies.

关键词： Groundwater pollution Identification of pollution sources Geophysical exploration identification Geochemistry identification Isotopic tracing Numerical modeling Remediation technology Hydrogeological conditions Hydrogeological survey engineering

Characteristics and sources of microplastic pollution in the water and sediments of the Jinjiang River Basin,Fujian Province,China

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China Geology 2022年第3期5卷 429-438页

作者： ya-ci liu lin Wu Guo-wei Shi Sheng-wei Cao ya-song li Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesChina Geological SurveyMinistry of Natural ResourcesShijiazhuang 050061China Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes Xiamen 361000China

Microplastic pollution is widely distributed from surface water to sediments to groundwater vertically and from land to the ocean *** study collected samples from surface water,groundwater,and sediments from upper to lower reaches and then to the estuary in 16 typical areas in the Jinjiang River Basin,Fujian Province,***,it determined the components and abundance of the microplastics and analyzed the possible microplastic sources through principal component analysis(PCA).As a result,seven main components of microplastics were detected,i.e.,polyethylene(PE),polypropylene(PP),polyvinyl chloride(PVC),polyethylene terephthalate(PET),polyformaldehyde(POM),nylon 6(PA6),and polystyrene(PS).Among them,PE and PP were found to have the highest proportion in the surface water and sediments and in the groundwater,*** surface water,groundwater,and sediments had average microplastic abundance of 1.6 n/L,2.7 n/L and 33.8 n/kg,*** microplastics in the sediments had the largest particle size,while those in the groundwater had the smallest particle *** with water bodies and sediments in other areas,those in the study area generally have medium-low-level microplastic *** pollution sources were determined according to PCA,i.e.,the dominant agriculture-forestry-fishery source,domestic wastewater,and industrial *** study can provide a scientific basis for the control of microplastics in rivers.

关键词： Microplastic Surface water Groundwater Sediment Estuary Hydrogeological survey engineering Environment geological survey engineering Jinjiang River basin

Molten salt synthesis and supercapacitor properties of oxygen-vacancy LaMnO3-δ

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Journal of Energy Chemistry 2020年第4期29卷 173-181页

作者： ya-li song Zi-Chang Wang Yong-De yan Mi-lin Zhang Gui-ling Wang Tai-Qi Yin Yun Xue Fan Gao Min Qiu Key Laboratory of Superlight Materials and Surface Technology Ministry of EducationCollege of Materials Science and Chemical EngineeringHarbinEngineering UniversityHarbin 150001HeilongjiangChina College of Science Heihe UniversityHeihe 164300HeilongjiangChina

Due to the unique structure of perovskite materials,their capacitance can be improved by introducing oxygen *** this paper,the LaMnO3-δ material containing oxygen vacancy was synthesized by molten salt method in KNO3-NaNO3-NaNO2 *** La-Mn-O crystal grows gradually in molten salt with the increase of *** was confirmed that LaMnO3-δ with perovskite structure and incomplete oxygen content were synthesized by molten salt method and presented a three-dimensional ***3-δ stores energy by redox reaction and adsorption of OH-in electrolyte *** comparison with the stoichiometric LaMnO3 prepared by the sol-gel method,LaMnO3-δ prepared by molten salt method proffered higher capacitance and better *** galvanostatic charge-discharge curve showed specific capacitance of 973.5 F/g under current density of 1 A/g in 6 M *** capacitance of LaMn03-δ was 82.7%under condition of 5 A/g compared with the capacitance at the current of 1A/g,and the specific capacitances of 648.0 and 310.0 F/g were obtained after 2000 and 5000 cycles of galvanostatic charging-discharging,*** salt synthesis method is relatively simple and suitable for industrial scale,presenting a promising prospect in the synthesis of perovskite oxide materials.

关键词： LaMnO3-δ Perovskite oxide KNO3-NaNO3-NaNO2 melt Supercapacitor Molten salt synthesis

Arsenic contamination caused by roxarsone transformation with spatiotemporal variation of microbial community structure in a column experiment

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Journal of Groundwater Science and Engineering 2021年第4期9卷 304-316页

作者： ya-ci liu Zhao-ji Zhang Xin-yi Zhao Meng-tuo Wen Sheng-wei Cao ya-song li Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuang 050061China Key Laboratory of Groundwater Remediation of Hebei Province and China Geological Survey Shijiazhuang 050061China Hebei Hydrology Engineering Geological Survey Institute Co.LTD Shijiazhuang 050061China China University of Geosciences Beijing 100083China.

Arsenic contamination from roxarsone in livestock manure is common,and livestock manure continuously accumulates in the open *** of the environmental processes of As mobilization and transformation are critical for predicting the fate of As compounds after roxarsone *** this study,spatiotemporal variations in As species and microbial community structure were characterized using laboratory column experiments with background soil collected from yanggu County(northern Shandong Plain,China),a region of intense poultry *** and inorganic arsenic were detected by high-performance liquid chromatography(HPLC)and HPLC with hydride generation atomic fluorescence spectrometry(HPLC-HG-AFS),***-throughput sequencing technology was used to describe microbial *** showed that roxarsone was transformed completely within 7 days,and A_(s)(Ⅲ)and As(Ⅴ)were the major degradation *** concentration of A_(s)(Ⅲ)was much lower than that of As(Ⅴ).The A_(s)(Ⅲ)concentration increased significantly after Day 14,whereas the A_(s)(Ⅴ)concentration increased significantly after Day 84,indicating that A_(s)(Ⅲ)was initially *** microbial community structure changed significantly as roxarsone transformed into various As compounds.A critical and dominant bacterial strain,norank_f__Family_XVⅢ,was found to be related to the degradation of roxarsone into As(Ⅲ).This study improves our understanding of the fate of As species released from poultry litter to soil and groundwater,which is a threat to human health and environment.

关键词： Arsenic Roxarsone Spatiotemporal variation Microbial community

Analysis on the situation and countermeasures of water resources supply and demand in the cities of small and medium-sized river basins along southeast coast of China-taking Xiamen City as an example

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Journal of Groundwater Science and Engineering 2021年第4期9卷 350-358页

作者： Chun-lei liu Jian-hua Zheng Zheng-hong li ya-song li Qi-chen Hao Jian-feng li Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuang 050061China Key Laboratory of Groundwater Sciences and Engineering Ministry of Natural ResourcesShijiazhuang 050061China Xiamen Institute of Environment Science Xiamen 361000FujianChina.

The small and medium-sized river basins along southeast coast of China hold comparatively abundant water ***,the rapid resources urbanization in recent years has produced a series of water problems such as deterioration of river water quality,water shortage and exacerbated floods,which have constrained urban economic *** applying the principle of triple supply-demand equilibrium,this paper focuses on the estimation of levels of water supply and demand in 2030 at different guarantee probabilities,with a case study of Xiamen *** results show that water shortage and inefficient utilization are main problems in the city,as the future water supply looks daunting,and a water shortage may hit nearly 2×10^(8)m^(3)in an extraordinarily dry *** on current water supply-demand gap and its trend,this paper proposes countermeasures and suggestions for developing and utilizing groundwater resources and improving the utilization rate of water resources,which can supply as a reference for other southeast middle-to-small-sized basin cities in terms of sustainable water resources and water environment protection.

关键词： Xiamen City Water resources Triple equilibrium Probability Supply and demand forecast

厦门湾砂质潮间带海底地下水排泄的非均质性研究

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河北地质大学学报 2024年第1期47卷 72-77页

作者：王志秀郝奇琛李亚松刘春雷张媛静河北地质大学城市地质与工程学院河北石家庄050031 福建省水循环与生态地质过程重点实验室福建厦门361021 中国地质科学院水文地质环境地质研究所河北石家庄050061

以厦门岛南岸砂质海岸为研究对象,通过监测潮间带渗出面处地下水盐度、近岸海水盐度,并分析潮间带盐度空间分布规律,以探究厦门湾海底地下水排泄(SGD)的非均质性。结果显示:1)潮间带地下水、海水盐度变化可以间接指示海底地下淡水排泄量... 详细信息

以厦门岛南岸砂质海岸为研究对象,通过监测潮间带渗出面处地下水盐度、近岸海水盐度,并分析潮间带盐度空间分布规律,以探究厦门湾海底地下水排泄(SGD)的非均质性。结果显示:1)潮间带地下水、海水盐度变化可以间接指示海底地下淡水排泄量(SFGD)。2)垂直于海岸线方向,由内陆向海洋地下水盐度呈现先降低后升高的规律;沿海岸线方向,整个潮滩地下水盐度分布不均匀,差异性较大,具有明显的非均质性。3)通过对潮间带中部最低盐度区域进行加密监测,圈定了厦门湾潮间带高渗透天窗范围,推测高渗透天窗对SFGD影响较大。4)通过对典型剖面地下水、近岸海水盐度动态监测,发现潮汐对潮间带SFGD产生一定影响。

关键词：厦门湾海岸带渗出面地下水盐度海底地下水排泄非均质性

Genetic model and exploration target area of geothermal resources in Hongtang Area, Xiamen, China

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Journal of Groundwater Science and Engineering 2022年第2期10卷 128-137页

作者： Chun-lei liu Chen-ming Lu ya-song li Qi-chen Hao Sheng-wei Cao Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuang 050061China Fujian Provincial Key Laboratory of Water Cycling and Eco-Geological Processes Xiamen 361000Fujian ProvinceChina

The geothermal resources in Fujian Province are mainly hydrothermal resources of medium-low *** better understand the whole process and conditions of heat control in the middle and deep crust,this study focuses on the analysis of heat accumulation model in Hongtang Area of Xiamen,and the main conditions of the model such as faults and sags are explored and interpreted in detail by using gravity and wide-field electromagnetic methods.4 main faults(F33,F2,F12 and HT-F1)and 10 secondary faults(HT-F2,HT-F3,HT-F4,HT-F5,HT-F6,HT-F7,HT-F8,HT-F9,HT-F10 and HT-F11)were inferred,and the distribution range of sags was *** convective geothermal system is composed of four components:Heat source,geothermal reservoir,heat-conductive fault and heat retaining cover,which form a quaternary heat accumulation *** to the model,the intersection of the main faults F12,HTF1 and F33 can be delineated as the primary target area of geothermal exploration,while the intersection of the secondary faults(F12 and HT-F6;F12 and HT-F2;HT-F9,HT-F10 and F12;F12 and HT-F11;F33 and HT-F3;HT-F8 and HT-F3;HT-F2,HT-F10 and HT-F1)can be delineated as the secondary target *** DR01,which is located in the primary target area,shows that the water temperature increases from fast to slow in the depth range of 0–500 m,and stays at 36℃below 500 *** reliability of the heat accumulation model and the target area was tested via geothermal boreholes,which is of great significance to the exploitation and utilization of geothermal resources in Hongtang Area of Xiamen.

关键词： Geotherm Gravity method Wide-field electromagnetic method Target area of geothermal exploration Heat accumulation model Hongtang Area

Nicotinamide adenine dinucleotide phosphate oxidase in pancreatic diseases:Mechanisms and future perspectives

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World Journal of Gastroenterology 2024年第5期30卷 429-439页

作者： ya-Wei Bi Long-song li Nan Ru Bo Zhang Xiao Lei Department of Gastroenterology The First Medical Center of Chinese PLA General HospitalBeijing 100853China Department of Radiation Oncology Chinese PLA General HospitalBeijing 100853China

Pancreatitis and pancreatic cancer(PC)stand as the most worrisome ailments affecting the *** have dedicated efforts to unraveling the mechanisms underlying these diseases,yet their true nature continues to elude their *** this realm,oxidative stress is often believed to play a causal and contributory role in the development of pancreatitis and *** accumulation of reactive oxygen species(ROS)can cause oxidative stress,and the key enzyme responsible for inducing ROS production in cells is nicotinamide adenine dinucleotide phosphate hydrogen oxides(NOX).NOX contribute to pancreatic fibrosis and inflammation by generating ROS that injure acinar cells,activate pancreatic stellate cells,and mediate macrophage *** ROS production occurs during malignant transformation and pancreatic carcinogenesis,creating an oxidative microenvironment that can cause abnormal apoptosis,epithelial to mesenchymal transition and genomic ***,understanding the role of NOX in pancreatic diseases contributes to a more in-depth exploration of the exact pathogenesis of these *** this review,we aim to summarize the potential roles of NOX and its mechanism in pancreatic disorders,aiming to provide novel insights into understanding the mechanisms underlying these diseases.

关键词： Nicotinamide adenine dinucleotide phosphate hydrogen oxides Pancreatitis Pancreatic cancer Reactive oxygen species Mechanism

Analysis on hydrochemical characteristics of groundwater in strongly exploited area in Hutuo River Plain

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Journal of Groundwater Science and Engineering 2017年第2期5卷 130-139页

作者： TIAN Xia FEI Yu-hong ZHANG Zhao-ji li ya-song DUN Yu GUO Chun-yan Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological Sciences

The Hutuo River alluvial-proluvial fan is located in North China Plain, and groundwater is the main source of water supply for agriculture and domestic water. Shijiazhuang depression funnels due to the long-term excessive exploitation are the bottleneck of the regional economic development. Analyzing the chemical characteristics of groundwater under the condition of strong human activities, can provide a scientific basis for further study of strong groundwater mining area environmental change. 143 groups of shallow groundwater samples are collected during the period of 2007-2008. In this paper, the hydrochemical characteristics of groundwater in the Hutuo River Plain area are analyzed systematically, using hydrogeochemical theory, combined with statistical methods and hydrochemical methods. Results are shown as follows: HCO_3^- and Ca^(2+) are major anion and cation. The variation coefficients of K^+, Ca^(2+), Mg^(2+) and HCO_3^- between 0.25 and 0.52, which means small and stable relatively. The variation coefficient of are Na^+, NO_3^-, Cl-, SO2-4 were large(0.89-1.01). They are sensitive and vulnerable to environmental change affect. Due to the impact of human activities, from the top to the edge of the alluvial-proluvial fan, the hydrochemical types of groundwater change from single to multiple, followed by HCO_3^-Ca·Mg, HCO_3·SO_4-Ca·Mg, HCO_3·SO_4·Cl-Ca·Mg, HCO_3·Cl-Ca·Mg and other types.

关键词： Shallow groundwater Hydrochemical characteristics Hutuo River Alluvial Plain