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皮革制作与环保科技 2024年第6期5卷 42-44页

作者：惠亚梅张静高娜文婷甘肃省酒泉生态环境监测中心甘肃酒泉735000

通过系统地分析2013—2022年酒泉市肃州区连续10年的大气降水季节变化及相关性,并运用正定矩阵因子分解法(PMF)解析其主要来源,旨在掌握酒泉市肃州区大气降水特征,为地方经济健康发展和大气污染防治政策的制定提供科学依据。

关键词：大气降水季节变化源解析酒泉市

Distribution of polycyclic aromatic hydrocarbons in sediments from Yellow River Estuary and Yangtze River Estuary,China

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Journal of Environmental Sciences 2009年第12期21卷 1625-1631页

作者： hui yamei ZHENG Minghui LIU Zhengtao GAO Lirong State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China China Research Academy of Environmental Sciences Beijing 100012 China

Surface sediment samples collected from twenty-one sites of Yellow River Estuary and Yangtze River Estuary were determined for sixteen priority polycyclic aromatic hydrocarbons （PAHs） by isotope dilution GC-MS method. The total PAH contents varied from 10.8 to 252 ng/g in Yellow River Estuary sediment, and from 84.6 to 620 ng/g in Yangtze River Estuary sediment. The mean total PAH content of Yangtze River Estuary was approximately twofold higher than that of Yellow River Estuary. The main reasons for the difference may be the rapid industrial development and high population along Yangtze River and high silt content of Yellow River Estuary. The evaluation of PAH sources suggested that PAHs in two estuaries sediments estuaries were derived primarily from combustion sources, but minor amounts of PAHs were derived from petroleum source in Yellow River Estuary. PAHs may be primary introduced to Yellow River Estuary via dry/wet deposition, wastewater effluents, and accidental oil spills, and Yangtze River Estuary is more prone to be affected by wastewater discharge.

关键词： PAHs sediment Yellow River Estuary Yangtze River Estuary

Determination of persistent organic pollutants by gas chromatography/laser multiphoton ionization/time-of-flight mass spectrometry

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Frontiers of Environmental Science & Engineering 2012年第1期6卷 26-31页

作者： Osamu SHITAMICHI Taiki MATSUI yamei hui Weiwei CHEN Totaro IMASAKA Department of Applied Chemistry Graduate School of Engineering Kyushu University Fukuoka 819-0395 Japan School of Environment Tsinghua University Beijing 100084 China Division of Translational Research Center for Future Chemistry Kyusl~u Univeresity Fukuoka 819-0395 Japan

An authentic mixture of polychlorinated biphenyls was measured using a short wide-bore capillary column for the group separation of major components present in an actual sample of Kanechlor. The limits of detection were improved by ca. 2 fold in comparison with those obtained using a conventional capillary column, since the retention time was reduced and the amount of analytes introduced into the mass spectrometer per unit time could be increased. On the other hand, surface-water and sediment samples containing polycyclic aromatic hydrocarbons （PAHs） were collected from the river located in the vicinity of a waste water treatment plant. Even acenaphthylene, a minor component of the mixture could be measured for the sediment sample, and the concentra- tions were determined for several heavy PAHs. As demonstrated, a technique involving laser multiphoton ionization/time-of-flight mass spectrometry was useful as a sensitive and selective analytical tool for the trace analysis of persistent organic pollutants in an environmental sample.

关键词： polychlorinated biphenyls (PCBs) polycyclic aromatic hydrocarbons (PAHs) laser multiphoton ioniza- tion/time-of-flight mass spectrometry (MPI/TOF-MS)

Detailed analysis of PCBs and PCDD/Fs impurities in a dielectric oil sample （ASKAREL Nr 1740） from an imported transformer in China

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Frontiers of Environmental Science & Engineering 2014年第2期8卷 195-204页

作者： Jun HUANG yamei hui Toru MATSUMURA Gang YU Shubo DENG Makoto YAMAUCHI Changmin WU Norimasa YAMAZAKI School of Environment POPs Research Center Tsinghua University Beijing 100084 China IDEA Consultants Inc. Shizuoka 421-0212 Japan CSD IDEA (Beijing) Institute of Environmental Innovation Co. Lt~ Beijing 100084 China

Homolog and congener profiles of polychlori- nated biphenyls （PCBs）, polychlorinated dibenzo-p- dioxins （PCDDs） and polychlorinated dibenzofurans （PCDFs） in commercial PCBs formulations are useful information for the source appointment of PCBs contam- ination as well as the risk assessment caused by potential exposure. Dielectric oil （ASKAREL Nr 1740） in an imported transformer found in China was sampled and analyzed by isotope dilution technology using high resolution gas chromatography-high resolution mass spectrometry （HRGC/HRMS）. The detailed homolog and congener profiles of PCBs obtained were compared with those of known Aroclor formulations. High similarity in the homolog profile between the oil sample and Aroclor 1260was found, with the hexachlorinated and hepta- chlorinated biphenyls accounting for more than 80.2% of the total PCBs concentration. Severn indicator PCBs contribute about 30%, while 12 PCB congeners （i.e., # 153, #143, #168, #180, #149, #165, #138, #170, #190, #187, #174, #181） account for more than 50% of the total PCB concentrations. Total concentration ofPCDDs, PCDFs and dioxin-like PCBs （DL-PCBs） was found to be 740 ng TEQ/g, of which 620 ng TEQ/g came from DL-PCBs. The contribution of PCDDs to the total TEQ was neglectable. The concentration of PCDFs homologs follows the order of OCDF 〉 HxCDFs 〉 HpCDFs 〉 PeCDFs 〉 TeCDFs, which is in consistence with the previous study on Aroclor 1260. Three DL-PCBs congeners （i.e., #118, #156, #157） accounted for 77% of the total concentration of DL-PCBs, also they contribute 72% in the TEQ caused by DL-PCBs.

关键词： profiles of polychlorinated biphenyls (PCBs),polychlorinated dibenzo-p-dioxins (PCDDs) polychlori-nated dibenzofurans (PCDFs) Askarel transformer insulat-ing fluid

基于线性贝叶斯和改进的典型相关分析法的地震岩石物理反演

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地球物理学报 2024年第1期67卷 332-346页

作者：曹亚梅周辉于波王玲谦油气资源与工程全国重点实验室 CNPC物探重点实验室中国石油大学(北京)北京102249 中国石油大学(北京)理学院北京102249 东北石油大学地球科学学院大庆163318

岩石物理反演作为一种直观的定量解释手段,是储层表征的一个重要研究课题,其中岩石物理模型是联系储层物性参数与弹性参数的桥梁.传统岩石物理反演往往需要在井位处校准岩石物理模型,而在地下介质复杂时,常规的岩石物理模型难以准确描... 详细信息

岩石物理反演作为一种直观的定量解释手段,是储层表征的一个重要研究课题,其中岩石物理模型是联系储层物性参数与弹性参数的桥梁.传统岩石物理反演往往需要在井位处校准岩石物理模型,而在地下介质复杂时,常规的岩石物理模型难以准确描述二者之间的关系,极大地影响了岩石物理反演的准确性.为降低岩石物理模型校准带来的误差,本文引入改进的典型相关分析(BP-CCA)法来构建储层物性参数与弹性参数之间的统计岩石物理关系,从而获得地下储层物性参数的空间展布信息.此外,该方法采用线性贝叶斯理论从叠前地震数据反演得到纵、横波速度及密度等弹性参数,具有较高的反演精度和计算效率.本文对提出的方法进行了合成数据实验和实际数据应用测试.结果表明,该方法可实现对储层参数的准确刻画,验证了其可靠性.

关键词：储层识别地震反演岩石物理统计分析

2-O-β-D-Glucopyranosyl-L-ascorbic acid,an ascorbic acid derivative isolated from the fruits of Lycium barbarum L.,ameliorates high fructose-induced neuroinflammation in mice:involvement of gut microbiota and leaky gut

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Food Science and Human Wellness 2024年第1期13卷 241-253页

作者： Wei Dong Yujia Peng Guijie Chen Zhiyong Xie Weiqi Xu Wangting Zhou Jia Mi Lu Lu Yi Sun Xiaoxiong Zeng Youlong Cao yamei Yan College of Food Science and Technology Nanjing Agricultural UniversityNanjing 210095China Institute of Wolfberry Engineering Technology National Wolfberry Engineering Research CenterNingxia Academy of Agriculture and Forestry SciencesYinchuan 750002China

Western diet(rich in highly refined sugar and fat)can induce a range of metabolic dysfunctions in animals and humans,including neuroinflammation and cognitive function *** and cognitive impairment,two critical pathological characteristics of Alzheimer’s disease,have been closely associated with microbial alteration via the gut-brain ***,the present study aimed to investigate the influence of 2-O-β-D-glucopyranosyl-L-ascorbic acid(AA-2βG)isolated from the fruits of Lycium barbarum on preventing the high-fructose diet(HFrD)induced neuroinflammation in *** was found that AA-2βG prevented HFr D-induced cognitive ***-2βG also predominantly enhanced the gut barrier integrity,decreased lipopolysaccharide entry into the circulation,which subsequently countered the activation of glial cells and neuroinflammatory *** beneficial effects were transmissible by horizontal fecal microbiome transplantation,transferring from AA-2βG fed mice to HFr D fed ***,AA-2βG exerted neuroprotective effects involving the enrichment of Lactobacillus and Akkermansia,potentially beneficial intestinal *** present study provided the evidence that AA-2βG could improve indices of cognition and neuroinflammmation via modulating gut dybiosis and preventing leaky *** a potential functional food ingredient,AA-2βG may be applied to attenuate neuroinflammation associated with Western-style diets.

关键词： Neuroinfl ammation Gut microbiota Leaky gut Lipopolysaccharide Fecal microbiome transplantation 2-O-β-D-Glucopyranosyl-L-ascorbic acid

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基于空间协模拟的叠前地震随机反演方法

石油地球物理勘探 2024年第2期59卷 268-278页

作者：曹亚梅周辉于波张元高戴世立中国石油大学(北京)油气资源与工程全国重点实验室北京102249 中国石油大学(北京)CNPC物探重点实验室北京102249 东北石油大学地球科学学院黑龙江大庆163318 大庆油田勘探事业部黑龙江大庆163453

无论是迭代类随机反演还是线性贝叶斯随机反演,一般采用序贯类随机模拟表征油藏的非均质性。序贯类方法大多依赖变差函数或训练图像描述模型参数的空间相关性,需要逐点计算模拟结果,因此并行实现困难、计算效率低。为此,将一种条件化快... 详细信息

无论是迭代类随机反演还是线性贝叶斯随机反演,一般采用序贯类随机模拟表征油藏的非均质性。序贯类方法大多依赖变差函数或训练图像描述模型参数的空间相关性,需要逐点计算模拟结果,因此并行实现困难、计算效率低。为此,将一种条件化快速傅里叶变换滑动平均(FFT⁃MA)模拟引入线性反演框架,提出基于空间协模拟的叠前地震随机反演方法。首先,在贝叶斯框架下整合地震数据和测井低频信息,获得弹性参数的后验概率分布。然后,根据FFT⁃MA算法生成概率场,以测井数据为条件数据对贝叶斯后验应用概率场协同模拟,从而获得井震数据约束的叠前弹性参数高分辨率随机反演结果。该方法无需迭代更新模型参数,能极大地提高随机反演的计算效率。最后,由模型试算和实际资料应用测试方法的效果。模型试算表明,所提方法在高分辨率储层预测及计算效率方面均优于常规方法,可稳定、准确地描述小尺度储层特征。实际资料应用表明,所提方法得到的高分辨反演结果与测井数据契合良好,提高了随机反演在薄储层定量表征方面的实用性。

关键词：高分辨率地质统计学 FFT⁃MA算法随机反演协同模拟

Formation of Polycyclic Aromatic Hydrocarbons during Roasting Meat Process

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Formation of Polycyclic Aromatic Hydrocarbons during Roastin...

CuCl2-catalyzed PCDD/Fs Formation from Catechol

第五届全国环境化学大会

作者： yamei hui Minghui Zheng~* (Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085, China

＜正＞Polycyclic aromatic hydrocarbons（PAHs） are a major class of environmentally hazardous organic compounds due to their *** studies have shown that cooking such as roasting and grilling may induce formation of PAHs,but these studies haven’t revealed the exact mechanism of PAHs *** levels of 16 PAHs in meat samples,experimentally roasted at different conditions（time, temperature and fat content）,were determined by isotope dilution GC-MS method. The results showed that PAH levels in roasted meat were strongly dependent on temperature and *** fat content didn’t seem to influence the PAH levels in roasted *** concentrations of high-ring PAHs and low-ring PAHs in roasted meat varied with temperature and time,and the trend is different（Fig.1 and Fig.2）. However,there was no obvious difference in PAH profiles of meat samples roasted at different conditions.

关键词： PAHs formation processing roasted meat

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CuCl2-catalyzed PCDD/Fs Formation from Catechol

黑枸杞主要活性成分对造血系统作用的研究进展

第五届全国环境化学大会

作者： Jiajia Wu Minghui Zheng~* yamei hui Bing Zhang (Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing, 100085

＜正＞Polychlorinated dibenzo-p-dioxins（PCDDs） and dibenzo-p-furans（PCDFs） are ubiquitous environmental contaminants,which persist and bioaccumulate through the food *** mechanisms of PCDD/Fs in thermal processes are rather well-documented in the *** pathways and de novo synthesis are considered as two general formation ***-catalyzed formation from phenol

关键词： PCDD/Fs Catechol CuCl2

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中国医院药学杂志 2024年第10期44卷 1235-1240页

作者：申娅媚郑波宁夏医科大学临床医学院宁夏银川750004 宁夏医科大学总医院血液科宁夏银川750004

黑枸杞是中国西北地区一种珍贵的药食两用植物,因具有较高的药用价值和食用价值,得到越来越多的关注与研究。黑枸杞提取物包含黄酮类、多糖类、多酚等活性成分和蛋白质、氨基酸、维生素、矿物质等营养成分,具有抗氧化、抗肿瘤、免疫调... 详细信息

黑枸杞是中国西北地区一种珍贵的药食两用植物,因具有较高的药用价值和食用价值,得到越来越多的关注与研究。黑枸杞提取物包含黄酮类、多糖类、多酚等活性成分和蛋白质、氨基酸、维生素、矿物质等营养成分,具有抗氧化、抗肿瘤、免疫调节等功效。最新研究发现黑枸杞活性成分能促进辐射损伤后骨髓造血功能恢复、改善放化疗后骨髓抑制、增强机体免疫功能和促进白血病细胞凋亡的作用。该文对黑枸杞主要活性成分及生物学功效作简单介绍总结,并结合相关文献阐述其对造血系统作用的最新研究进展,或可为中药对造血干细胞、造血微环境等领域研究提供研究基础。

关键词：黑枸杞造血干/祖细胞骨髓抑制氧化损伤免疫调节抗肿瘤

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