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Verification on the Developmental Toxicity of Short-term Exposure to Phenol in Rats

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Biomedical and Environmental Sciences 2020年第6期33卷 403-413页

作者： WANG Chao XU yong Jun SHI Ying WANG Chong DUAN Lian GU Wen RUAN Hong jie ZHANG Shao Ping ZHI Hong KONG Jian ZHANG Li Xia ZHANG Ming ZHANG Hong Wei China CDC Key Laboratory of Environment and Population Health National Institute of Environmental HealthChinese Center for Disease Control and PreventionBeijing 100021China

Objective To verify the health advisory for short-term exposure to *** The method of this validation experiment was the same as the US Environmental Protection Agency(EPA)methodology for toxicology experiments used to determine phenol drinking water equivalent level(DWEL).Pregnant female Sprague-Dawley rats were administered phenol in distilled water by gavage at daily doses of 15,30,60,120,and 240 mg/kg body weight(b.w.)from implantation(the 6 th day post-mating)to the day prior to the scheduled caesarean section(the 20th day of pregnancy).The following information was recorded:general behavior;body weight;number of corpus luteum,live birth,fetus,stillbirth,and implantation;fetal gender;body weight;body length;tail length;and abnormalities and pathomorphological changes in the *** In the 60 mg/kg *** group,the mortality of pregnant rats increased with increasing doses,suggesting maternal *** and placental weights decreased as phenol dose increased from30 mg/kg b.w.,and were significantly different compared those in the vehicle control group,which suggested developmental toxicity in the ***,the phenol-exposed groups showed no significant change in other parameters compared with the vehicle control group(P>0.05).Conclusion Despite using the same method as the US EPA,a different NOEAL of 15 mg/(kg·d)was obtained in this study.

关键词： Phenol Short-term exposure health advisory Verification

Padding molybdenum net with Graphite/MoO3 composite as a multifunctional interlayer enabling high-performance lithium-sulfur batteries

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Padding molybdenum net with Graphite/MoO3 composite as a mul...

Effect of petroleum chemical fraction and residual oil content in saline lacustrine organic-rich shale: A case study from the Paleogene Dongpu Depression of North China

中国化学会第三届中国能源材料化学研讨会

作者： Xin-Yang yue yong-Ning Zhou Department of Materials Science Fudan University

＜正＞The development of "beyond lithium-ion" battery systems with high energy density are urgently required due to the increasing demand for electric vehicles and compact energy storage ***-Sulfur batteries are consi...

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Petroleum Science 2023年第2期20卷 649-669页

作者： Chen-Xi Zhu Fu-jie Jiang Peng-Yuan Zhang Zhao Zhao Xin Chen Yu-Qi Wu Yuan-Yuan Chen Wei Wang Ze-Zhang Song Tao Hu Tian-Wu Xu yong-Shui Zhou State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing102249China China University of Petroleum(Beijing) Beijing102249China Key Laboratory of Cenozoic Geology and Environment Institute of Geology and GeophysicsChinese Academy of SciencesBeijing100191China Tianjin Branch of CNOOC Ltd Tianjin300459China Shenzhen Branch CNOOC China LimitedShenzhenGuangdong518000China Zhongyuan Oilfield Branch SINOPECHenan457001China

Halite and gypsum minerals in saline shale make the retention mechanism and chemical fractionation of residual oil unique. The Dongpu Depression in North China is a typically saline lacustrine basin with developing halite and gypsum. The effect of gypsum minerals on residual oil content and chemical fractionation remains unclear. In this study, shale samples with different gypsum contents were used in organic geochemical experiments, showing that the high total organic matter (TOC) content and type II kerogen leads to a high residual oil content, as shown by high values of volatile hydrocarbon (S1) and extractable organic matter (EOM). XRD and FE-SEM result indicate that the existence of gypsum in saline shale contributes to an enhanced pore space and a higher residual oil content in comparison to non-gypsum shale. Additionally, the increase in the gypsum mineral content leads to an increase in the saturated hydrocarbon percentage and a decrease in polar components percentage (resins and asphaltene). Furthermore, thermal simulation experiments on low-mature saline shale show that the percentage of saturated hydrocarbons in the residual oil is high and remains stable and that the storage space is mainly mesoporous (> 20 nm) in the oil expulsion stage. However, the saturated hydrocarbons percentage decreases rapidly, and oil exists in mesopores (> 20 nm and < 5 nm) in the gas expulsion stage. In general, gypsum is conducive to the development of pore space, the adsorption of hydrocarbons and the occurrence of saturated hydrocarbon, leading to large quantities of residual oil. The data in this paper should prove to be reliable for shale oil exploration in saline lacustrine basins.

关键词： Oil fractionation Residual oil Saline lacustrine shale The Dongpu Depression

Damaged male germ cells induce epididymitis in mice

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Asian Journal of Andrology 2020年第5期22卷 472-480页

作者： Wei-Hua Liu Fei Wang Xiao-Qin Yu Han Wu Mao-Lei Gong Ran Chen Wen-Jing Zhang Rui-Qin Han Ai-jie Liu yong-Mei Chen Dai-Shu Han Institute of Basic Medical Sciences Chinese Academy of Medical SciencesSchool of Basic MedicinePeking Union Medical CollegeBeijing 100005China

Epididymitis can be caused by infectious and noninfectious etiological *** microbial infections are responsible for infectious epididymitis,the etiological factors contributing to noninfectious epididymitis remain to be *** present study demonstrated that damaged male germ cells(DMGCs)induce epididymitis in *** injection of the alkylating agent busulfan damaged murine male germ *** was observed in mice 4 weeks after the injection of busulfan and was characterized by massive macrophage *** was coincident with an accumulation of DMGCs in the *** contrast,busulfan injection into mice lacking male germ cells did not induce *** induced innate immune responses in epididymal epithelial cells(EECs),thereby upregulating the pro-inflammatory cytokines such as tumor necrosis factor-a(7/VF-a),interleukin-6(/L-6),and interleukin-ip(IL-ip) as well as the chemokines such as monocyte chemotactic protein-1(MCP-1),monocyte chemotactic protein-5(MCP-5),and chemokine ligand-10(CXCL10).These results suggest that male germ cell damage may induce noninfectious epididymitis through the induction of innate immune responses in *** findings provide novel insights into the mechanisms underlying noninfectious epididymitis,which might aid in the diagnosis and treatment of the disease.

关键词： busulfan epididymitis innate immune response male germ cell male infertility

Toward parallel intelligence: An interdisciplinary solution for complex systems

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The Innovation 2023年第6期4卷 152-164页

作者： yong Zhao Zhengqiu Zhu Bin Chen Sihang Qiu Jincai Huang Xin Lu Weiyi Yang Chuan Ai Kuihua Huang Cheng He Yucheng Jin Zhong Liu Fei-yue Wang College of Systems Engineering National University of Defense TechnologyChangsha 410073China Hunan Institute of Advanced Technology Changsha 410073China Shanghai Institute of Infectious Disease and Biosecurity Shanghai 200032China Institute of Epidemiology Helmholtz Zentrum Minchen-German Research Center for Environmental Health(GmbH)NeuherbergGermany Department of Computer Science Hong Kong Baptist UniversityHong KongChina State Key Laboratory for Management and Control of Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China

The growing complexity of real-world systems necessitates interdisciplinary solutions to confront myriad challenges in modeling,analysis,management,and *** meet these demands,the parallel systems method rooted in the artificial systems,computational experiments,and parallel execution(ACP)approach has been *** method cultivates a cycle termed parallel intelligence,which iteratively creates data,acquires knowledge,and refines the actual *** the past two decades,the parallel systems method has continuously woven advanced knowledge and technologies from various disciplines,offering vers atile interdisciplinary solutions for complex systems across diverse *** review explores the origins and fundamental concepts of the parallel systems method,showcasing its accomplishments as a diverse array of parallel technologies and applica-tions while also prognosticating potential *** posit that this method will considerably augment sustainable development while enhancing interdisciplinary communication and cooperation.

关键词： execution artificial offering

High Efficient Green Emission from Organic Multi-quantum Wells Structure

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Chinese Physics Letters 1999年第2期16卷 149-151页

作者： XIE Zhi-yuan HUANG Jing-song LI Chuan-nan CHEN Bai-jun LIU Shi-yong LI Yan-qin WANG yue SHEN Jia-cong State Laboratory of Integrated Optoelectronics Jilin UniversityChangchun 130023 Key Laboratory of Supramolecular Structure and Spectroscopy Jilin UniversityChangchun 130023

Organic green light emitting devices(LEDs)with multi-quantum wells(MQWs)structure were *** diamine was used as hole-transporting layer and potential barrier layer;tris(8-hydroxyquinoline)aluminum acted as electron transporting layer and MQWs green emitting *** influence of the barrier layer thickness and quantum well number to the device performance was also *** barrier thickness must be thin(such as 4nm)enough to tunnel through and distribute charge carriers uniformly in different wells(mainly electrons).The organic MQWs LEDs showed enhanced electroluminescent *** luminous efficiency and external quantum efficiency were 1.241m/W and 1.04%,respectively.

关键词： quantum barrier luminous

基于碳量子点/铕基金属有机框架荧光探针定量检测牛奶中的四环素类抗生素

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食品安全质量检测学报 2024年第16期15卷 10-19页

作者：李钜哲施蕴仪胡杰秦孝晨申兆玥李梦晓姚志轶中国农业大学食品科学与营养工程学院北京100083

目的建立基于碳量子点(carbon quantum dots,CQDs)和铕基金属有机框架(Eu-based mental-organic framework,Eu-MOF)比率荧光传感器快速检测牛奶中四环素类抗生素(tetracycline antibiotics,TCs)残留的方法。方法通过TCs对CQDs的内滤效应和对Eu-MOF的天线效应,使CQDs的荧光淬灭而Eu-MOF荧光增强,形成探针对TCs的比率荧光信号,使用探针两发射峰强度比率关系进行TCs残留定量检测。结果所构建探针对四环素、金霉素、土霉素、强力霉素分别在2~160、2~100、2~80、2~220μmol/L的线性范围内响应灵敏,检出限分别为0.007、0.030、0.020、0.040μmol/L。在牛奶样品中TCs残留的加标回收实验的回收率为90.60%~107.60%。结论该策略具有高效、方便、低成本等优点,不仅扩展了金属有机框架在食品分析中的应用,而且为食品中TCs的检测提供了新的思路。

关键词：金属有机框架碳量子点四环素类抗生素多发射荧光传感器比率荧光

基于动静态特征双输入神经网络的咳嗽声诊断COVID-19算法

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电子学报 2023年第1期51卷 202-212页

作者：张永梅孙捷北方工业大学信息学院北京100144

新型冠状病毒肺炎(COVID-19)已经在世界范围内造成了严重影响,在防控疫情方面学者们进行了大量研究.利用咳嗽声判断病变部位来诊断新冠肺炎具有非接触、成本低、易获取等优点,但是此类研究在国内较为匮乏.梅尔倒谱系数(Mel Frequency Ce... 详细信息

新型冠状病毒肺炎(COVID-19)已经在世界范围内造成了严重影响,在防控疫情方面学者们进行了大量研究.利用咳嗽声判断病变部位来诊断新冠肺炎具有非接触、成本低、易获取等优点,但是此类研究在国内较为匮乏.梅尔倒谱系数(Mel Frequency Cepstral Coefficients,MFCC)特征仅能够表示声音的静态特征,而一阶差分MFCC特征还能反应声音的动态特征.为了更好地防治新冠肺炎,本文提出了基于动静态特征双输入神经网络的咳嗽声诊断新冠肺炎算法,通过咳嗽声诊断新冠肺炎.在Coswara数据集基础上,对咳嗽声的音频进行裁剪,提取MFCC和一阶差分MFCC特征训练了一个动静态特征双输入神经网络模型.本文模型采用统计池化层,可以输入不同长度的MFCC特征.实验结果表明,与现有模型相比较,本文算法明显提升了识别准确率、召回率、特异性和F1值.

关键词：深度学习咳嗽声新冠肺炎梅尔倒谱系数音频技术卷积神经网络

Subtle side chain modification of triphenylamine‐based polymer hole‐transport layer materials produces efficient and stable inverted perovskite solar cells

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Interdisciplinary Materials 2022年第2期1卷 281-293页

作者： yue-Min Xie Qin Yao Qifan Xue Zixin Zeng Tianqi Niu Yingzhi Zhou Ming-Peng Zhuo Sai-Wing Tsang Hin-Lap Yip yong Cao Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhouP.R.China Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates(South China University of Technology) GuangzhouP.R.China Department of Materials Science and Engineering City University of Hong KongKowloonHong KongChina School of Energy and Environmental Science City University of Hong KongKowloonHong KongChina

Polymer hole-transport layers(HTLs)are critical components of inverted perovskite solar cells(IPVSCs).Triphenylamine derivatives PTAA(poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine])and Poly-TPD(poly[N,N′-bis(4-butylphenyl)-N,N′-bis(phenyl)benzidine])have been widely adopted as hole-transport materials due to their perovskite passivation effects and suitable energy ***,the passivation mechanism(i.e.,the functional group responsible for perovskite passivation)of triphenylamine derivative polymers remains unclear,hindering the development and application of this polymer ***,we develop a novel Poly-TPD derivative,S-Poly-TPD,by replacing the n-butyl functional group of Poly-TPD with an isobutyl group to explore the influence of alkyl groups on HTL performance and top-deposited perovskite *** with Poly-TPD,the increased CH_(3)-terminal unit density and the decreased spatial distance between the-CH-CH_(3) and-CH_(2)-CH_(3) units and the benzene ring in S-Poly-TPD not only enhanced the hole-transport ability but also improved the perovskite passivation effect,revealing for the first time the role of the alkyl groups in perovskite *** a result,the S-Poly-TPD-based IPVSCs demonstrated high power-conversion efficiencies of 15.1% and 21.3% in wide-bandgap[MAPbI_(2)Br(SCN)0.12]and normal-bandgap[(FAPbI_(3))0.92(MAPbBr_(3))0.08]devices,respectively.

关键词： alkyl group inverted perovskite solar cells(IPVSCs) perovskite passivation polymer hole transport layers(HTLs) Poly-TPD,PTAA