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Chinese Journal of Chemical Engineering 2024年第3期67卷 27-38页

作者： Shanghong Ma Jianbo qu Haitao Zhang Xiubin cui Peng Ye Qingfei Hu Mingzhen Chao State Key Laboratory of Biobased Material and Green Papermaking Qilu University of TechnologyShandong Academy of SciencesJinan 250353China Faculty of Light Industry Qilu University of TechnologyShandong Academy of SciencesJinan 250353China

A series of adsorbent materials(WPU-HAx-y)with a three-dimensional porous structure,green sustainability,and excellent performance were prepared and evaluated for the removal of methylene blue using nontoxic and environmentally friendly waterborne polyurethane as the matrix material and humic acid,a biomass material,as the functional material.The newly synthesized adsorbents were characterized by infrared spectroscopy,scanning electron microscopy,specific surface area,and thermogravimetric.The effects of contact time(0-8 h),starting concentration(10-100 mg·L^(-1)),pH(3-11),solution temperature(30-60℃),and coexisting ions(Ca2+,Na+,K+,Mg2+)on the performance were investigated.Pseudo-first-order,pseudo-second-order,elovich,and intra-particle diffusion models were used to analyze the adsorption kinetics;the Langmuir,Freundlich,Temkin,and Dubin-Radushkovich adsorption isotherms were evaluated;and the adsorption behavior of the adsorbent materials was found to be more appropriate for the pseudo-second-order model for chemical pollutant removal than the Langmuir model,which depends on monolayer adsorption.WPU-HA2-3 stood out with a maximum adsorption capacity of 813.0081 mg·g^(-1) fitted to the pseudo-second-order and 309.2832 mg·g^(-1) fitted to the Langmuir model,showing superior adsorption performance and regenerability.

关键词： Porous media Bioenergy Sustainability Waste water

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Microscopic and spectroscopic analysis of atmospheric iron-containing single particles in Lhasa,Tibet

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Journal of Environmental Sciences 2024年第7期141卷 40-50页

作者： Junyu Chen Daobin Zhang Yiran Fu Jinhu Wang Xiaomei cui Ci-ren qu-zong Qiangying Zhang Chan Jin Bu Duo School of Ecology and Environment Tibet UniversityLhasa 850000China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China Institute of Tibetan Plateau Research Chinese Academy of SciencesBeijing 100101China

The Tibetan Plateau,known as the“Third Pole”,is currently in a state of perturbation caused by intensified human activity.In this study,56 samples were obtained at the five sampling sites in typical area of Lhasa city and their physical and chemical properties were investigated by TEM/EDS,STXM,and NEXAFS spectroscopy.After careful examination of 3387single particles,the results showed that Fe should be one of the most frequent metal elements.The Fe-containing single particles in irregular shape and micrometer size was about7.8%and might be mainly from local sources.Meanwhile,the Fe was located on the subsurface of single particles and might be existed in the form of iron oxide.Interestingly,the core-shell structure of iron-containing particles were about 38.8%and might be present as single-,dual-or triple-core shell structure and multi-core shell structure with the Fe/Si ratios of 17.5,10.5,2.9 and 1.2,respectively.Meanwhile,iron and manganese were found to coexist with identical distributions in the single particles,which might induce a synergistic effect between iron and manganese in catalytic oxidation.Finally,the solid spherical structure of Fe-containing particles without an external layer were about 53.4%.The elements of Fe and Mn were co-existed,and might be presented as iron oxide-manganese oxide-silica composite.Moreover,the ferrous and ferric forms of iron might be co-existed.Such information can be valuable in expanding our understanding of Fe-containing particles in the Tibetan Plateau atmosphere.

关键词： Fe-containing single particle Irregular shape Core-shell structure Solid spherical structure Transmission electron microscopy Synchrotron X-ray microscopy

RoBGP:A Chinese Nested Biomedical Named Entity Recognition Model Based on RoBERTa and Global Pointer

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Computers, Materials & Continua 2024年第3期78卷 3603-3618页

作者： Xiaohui cui Chao Song Dongmei Li Xiaolong qu Jiao Long Yu Yang Hanchao Zhang School of Information Science and Technology Beijing Forestry UniversityBeijing100083China Engineering Research Center for Forestry-Oriented Intelligent Information Processing of National Forestry and Grassland Administration Beijing100083China Division of Biostatistics Department of Population HealthGrossman School of MedicineNew York UniversityNew York10016USA

Named Entity Recognition(NER)stands as a fundamental task within the field of biomedical text mining,aiming to extract specific types of entities such as genes,proteins,and diseases from complex biomedical texts and categorize them into predefined entity types.This process can provide basic support for the automatic construction of knowledge bases.In contrast to general texts,biomedical texts frequently contain numerous nested entities and local dependencies among these entities,presenting significant challenges to prevailing NER models.To address these issues,we propose a novel Chinese nested biomedical NER model based on RoBERTa and Global Pointer(RoBGP).Our model initially utilizes the RoBERTa-wwm-ext-large pretrained language model to dynamically generate word-level initial vectors.It then incorporates a Bidirectional Long Short-Term Memory network for capturing bidirectional semantic information,effectively addressing the issue of long-distance dependencies.Furthermore,the Global Pointer model is employed to comprehensively recognize all nested entities in the text.We conduct extensive experiments on the Chinese medical dataset CMeEE and the results demonstrate the superior performance of RoBGP over several baseline models.This research confirms the effectiveness of RoBGP in Chinese biomedical NER,providing reliable technical support for biomedical information extraction and knowledge base construction.

关键词： Biomedicine knowledge base named entity recognition pretrained language model global pointer

Lactate regulates major zygotic genome activation by H3K18 lactylation in mammals

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National Science Review 2024年第2期11卷 124-134页

作者： Jingyu Li Weibo Hou Qi Zhao Wei Han Hongdi cui Songling Xiao Ling Zhu Jiadan qu Xiaoyu Liu Weitao Cong Jingling Shen Yuzheng Zhao Shaorong Gao Guoning Huang Qingran Kong Chongqing Key Laboratory of Human Embryo Engineering Center for Reproductive Medicine Chongqing Health Center for Women and ChildrenWomen and Children's Hospital of Chongqing Medical University Oujiang Laboratory Zhejiang Provincial Key Laboratory of Medical Genetics Key Laboratory of Laboratory MedicineMinistry of EducationSchool of Laboratory Medicine and Life Sciences Wenzhou Medical University Frontier Science Center for Stem Cell Research School of Life Sciences and Technology Tongji University School of Pharmaceutical Science Wenzhou Medical University Institute of Life Sciences College of Life and Environmental Sciences Wenzhou University Optogenetics&Synthetic Biology Interdisciplinary Research Center State Key Laboratory of Bioreactor Engineering Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism School of Pharmacy East China University of Science and Technology

Lactate is present at a high level in the microenvironment of mammalian preimplantation embryos in vivo and in vitro. However, its role in preimplantation development is unclear. Here, we report that lactate is highly enriched in the nuclei of early embryos when major zygotic genome activation(ZGA) occurs in humans and mice. The inhibition of its production and uptake results in developmental arrest at the 2-cell stage, major ZGA failure, and loss of lactate-derived H3K18lac, which could be rescued by the addition of Lac-Co A and recapitulated by overexpression of H3K18R mutation. By profiling the landscape of H3K18lac during mouse preimplantation development, we show that H3K18lac is enriched on the promoter regions of most major ZGA genes and correlates with their expressions. In humans, H3K18lac is also enriched in ZGA markers and temporally concomitant with their expressions. Taken together, we profile the landscapes of H3K18lac in mouse and human preimplantation embryos, and demonstrate the important role for H3K18lac in major ZGA, showing that a conserved metabolic mechanism underlies preimplantation development of mammalian embryos.

关键词： mammalian preimplantation development lactate epigenetic remodeling histone lactylation zygotic genome activation

Evolution of microstructure and properties of a novel Ni-based superalloy during stress relief annealing

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International Journal of Minerals,Metallurgy and Materials 2024年第8期 1876-1889页

作者： Lei Jia Heng cui Shufeng Yang Shaomin Lü Xingfei Xie Jinglong qu Collaborative Innovation Center of Steel Technology University of Science and Technology Beijing State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing Beijing GAONA Materials & Technology Co. Ltd. High-Temperature Materials Institute Central Iron and Steel Research Institute

We discussed the decrease in residual stress, precipitation evolution, and mechanical properties of GH4151 alloy in different annealing temperatures, which were studied by the scanning electron microscope（SEM）, high-resolution transmission electron microscopy（HRTEM）, and electron backscatter diffraction（EBSD）. The findings reveal that annealing processing has a significant impact on diminishing residual stresses. As the annealing temperature rose from 950 to 1150°C, the majority of the residual stresses were relieved from 60.1 MPa down to 10.9 MPa. Moreover, the stress relaxation mechanism transitioned from being mainly controlled by dislocation slip to a combination of dislocation slip and grain boundary migration. Meanwhile, the annealing treatment promotes the decomposition of the Laves, accompanied by the precipitation of μ-（Mo---6Co7） starting at 950°C and reaching a maximum value at 1050°C. The tensile strength and plasticity of the annealing alloy at 1150°C reached the maximum（1394 MPa, 56.1%） which was 131%, 200% fold than those of the as-cast alloy（1060 MPa, 26.6%）, but the oxidation process in the alloy was accelerated at 1150°C. The enhancement in durability and flexibility is primarily due to the dissolution of the brittle phase, along with the shape and dispersal of the γ′ phase.

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Timing and Spectral Analysis of the Black Hole X-Ray Binary MAXI J1803-298 with Insight-HXMT Data

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Research in Astronomy and Astrophysics 2024年第6期24卷 211-226页

作者： Ying-Chen Xu Jin-Lu qu M.Méndez Rui-Can Ma Long Ji Liang Zhang Yue Huang Qing-cui Bu Li-Ming Song Key Laboratory of Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences University of Chinese Academy of Sciences Chinese Academy of Sciences Kapteyn Astronomical Institute University of Groningen Dongguan Neutron Science Center School of Physics and Astronomy Sun Yat-Sen University Institut für Astronomie und Astrophysik Kepler Center for Astro and Particle Physics Eberhard Karls Universit?t

We present a comprehensive analysis of the 2021 outburst of MAXI J1803–298 utilizing observations of the Insight-Hard X-ray Modulation Telescope(Insight-HXMT) spanning from the low hard state to the high soft state.Within the Insight-HXMT data set, compared to the previous work, we identify a more prolonged presence of typeC quasi-periodic oscillations(QPOs) with centroid frequencies ranging from ～0.16 to 6.3 Hz, which present correlations with the hardness ratio and the photon index of the Comptonized component. For QPO frequencies less than ～2 Hz, the QPO phase lags are hard(photons of 10–19 keV arrive later than those of 1–4 keV), while at higher frequencies, the lags become soft at and above ～4 Hz. Furthermore, the spectra in all Insight-HXMT observations consist of a multi-color blackbody component and a Comptonized component, as commonly observed in classical black hole X-ray binaries. We analyze state transitions and the evolution of accretion geometry in this work. The fitted inner disk radius increases abnormally during the low hard state, hypothesized to result from the corona condensing onto the inner disk. Additionally, two significant drops in flux are observed during the soft intermediate state, maybe implying changes in the corona/jet and the disk, respectively.

关键词： accretion accretion disks stars: black holes X-rays: binaries

Genetic analysis and candidate gene identification of salt tolerancerelated traits in maize

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Journal of Integrative Agriculture 2024年第7期23卷 2196-2210页

作者： Hui Fang Xiuyi Fu Hanqiu Ge Mengxue Jia Jie Ji Yizhou Zhao Zijian qu Ziqian cui Aixia Zhang Yuandong Wang Ping Li Baohua Wang Scientific Observing and Experimental Station of Maize in Plain Area of Southern Region Ministry of Agriculture and Rural Affairs/School of Life SciencesNantong UniversityNantong 226019China Maize Research Institute Beijing Academy of Agriculture and Forestry Sciences(BAAFS)Beijing 100097China

Soil salinization poses a threat to maize production worldwide,but the genetic mechanism of salt tolerance in maize is not well understood.Therefore,identifying the genetic components underlying salt tolerance in maize is of great importance.In the current study,a teosinte-maize BC2F7 population was used to investigate the genetic basis of 21 salt tolerance-related traits.In total,125 QTLs were detected using a high-density genetic bin map,with one to five QTLs explaining 6.05–32.02%of the phenotypic variation for each trait.The total phenotypic variation explained(PVE)by all detected QTLs ranged from 6.84 to 63.88%for each trait.Of all 125 QTLs,only three were major QTLs distributed in two genomic regions on chromosome 6,which were involved in three salt tolerance-related traits.In addition,10 pairs of epistatic QTLs with additive effects were detected for eight traits,explaining 0.9 to 4.44%of the phenotypic variation.Furthermore,18 QTL hotspots affecting 3–7 traits were identified.In one hotspot(L5),a gene cluster consisting of four genes(ZmNSA1,SAG6,ZmCLCg,and ZmHKT1;2)was found,suggesting the involvement of multiple pleiotropic genes.Finally,two important candidate genes,Zm00001d002090 and Zm00001d002391,were found to be associated with salt tolerance-related traits by a combination of linkage and marker-trait association analyses.Zm00001d002090 encodes a calcium-dependent lipid-binding(CaLB domain)family protein,which may function as a Ca^(2+)sensor for transmitting the salt stress signal downstream,while Zm00001d002391 encodes a ubiquitin-specific protease belonging to the C19-related subfamily.Our findings provide valuable insights into the genetic basis of salt tolerance-related traits in maize and a theoretical foundation for breeders to develop enhanced salt-tolerant maize varieties.

关键词： maize salt tolerance-related traits QTL mapping region-based association analysis

红外、拉曼光谱的变压器油中糠醛检测方法对比研究

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光谱学与光谱分析 2024年第1期44卷 125-133页

作者：李杰周渠贾路芬崔萧森西南大学工程技术学院重庆400715

变压器油中的糠醛含量是电力变压器中绝缘老化的重要指标之一,在物质有效识别上红外及拉曼光谱具有检测速度快、分析速率快及无损检测等优势,开展了基于红外、拉曼光谱的变压器油中糠醛检测方法对比,探究适用于变压器油中糠醛红外、拉... 详细信息

变压器油中的糠醛含量是电力变压器中绝缘老化的重要指标之一,在物质有效识别上红外及拉曼光谱具有检测速度快、分析速率快及无损检测等优势,开展了基于红外、拉曼光谱的变压器油中糠醛检测方法对比,探究适用于变压器油中糠醛红外、拉曼光谱的预处理及定量分析方法。基于傅里叶变换红外光谱仪和激光共聚焦拉曼光谱仪器对实验室配置的糠醛变压器油样检测并采集其光谱数据,采用小波变换、多项式最小二乘法和局部加权回归拟合对采集到的红外及拉曼光谱图进行预处理,综合考虑噪声、分辨率及有效信息丢失等,确定了多项式最小二乘法预处理效果最佳。基于高斯软件建立了糠醛分子模型,通过密度泛函仿真计算,研究了糠醛的红外及拉曼光谱吸收峰归属,结合实验测试光谱图,确定了变压器油中糠醛拉曼、红外检测特征峰分别为1 703和1 704 cm^(-1)。开展了红外及拉曼检测的重复性实验,两种检测方法的相对标准偏差分别为7.21%、 8.67%。通过绘制糠醛红外及拉曼的3D原位光谱图,分析红外及拉曼特征峰面积与不同糠醛浓度变压器油之间的关系,基于最小二乘法建立了变压器油中糠醛检测的红外及拉曼定量分析模型,拟合优度分别为0.998和0.885。对比两种检测方法的定量分析模型预测结果,表明拉曼光谱法检测下限低于红外光谱法,通过多项式最小二乘法预处理的光谱数据所构建的变压器油中糠醛检测红外及拉曼定量分析模型可以很好地预测变压器油中糠醛含量,为相关领域研究提供技术参考。

关键词：红外光谱拉曼光谱预处理变压器油糠醛

安神定志方对D-半乳糖协同AβO诱导的小鼠阿尔茨海默病样行为的改善作用及机制研究

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药学学报 2024年第1期59卷 119-134页

作者：瞿艳吴欢朱国旗王训翠新安医学教育部重点实验室安徽合肥230038 安徽中医药大学科研技术中心安徽合肥230038 中药研究与开发安徽省重点实验室安徽合肥230012 安徽中医药大学分子生物学(脑病)重点实验室安徽合肥230012

本研究旨在探讨安神定志方(ADP)对小鼠阿尔茨海默病(AD)样行为的改善作用及机制。采用超高效液相色谱-飞行时间质谱技术标定ADP的主要成分。以D-半乳糖(D-gal)协同Aβ1-42寡聚体(AβO)诱导小鼠AD样行为,运用多种行为学方法评估ADP对小... 详细信息

本研究旨在探讨安神定志方(ADP)对小鼠阿尔茨海默病(AD)样行为的改善作用及机制。采用超高效液相色谱-飞行时间质谱技术标定ADP的主要成分。以D-半乳糖(D-gal)协同Aβ1-42寡聚体(AβO)诱导小鼠AD样行为,运用多种行为学方法评估ADP对小鼠AD样行为的影响;Nissl染色与透射电镜观察海马组织的病理形态改变;ELISA检测氧化应激和炎症相关因子水平;Western blot检测Aβ、Tau和胶质纤维酸性蛋白(GFAP)表达。根据TCMSP和HERB数据库筛选ADP的活性成分,利用Swiss Target Prediction平台预测活性成分的作用靶点;通过TTD、OMIM、GeneCards和DisGeNET数据库预测AD的疾病靶点;运用Metascape数据库对共有靶点进行GO、KEGG富集分析。结合GO和KEGG分析结果进行体内实验验证,从PI3K/Akt、钙信号通路以及突触功能角度探究ADP改善小鼠AD样行为的潜在机制。最后使用Autodock Vina对ADP的核心成分与已验证靶点进行分子对接。动物实验经安徽中医药大学动物伦理委员会批准(批准号:AHUCM-mouse-2021080)。结果表明,ADP中含有ginsenoside Rg1、ginsenoside Rb1、tenuifolin、poricoic acid B、α-asarone等主要化学成分。ADP显著改善D-gal协同AβO诱导的AD小鼠焦虑样行为和记忆损伤,保护海马神经元,降低氧化应激和炎症水平,抑制Aβ、磷酸化Tau表达。网络药理学结果提示PI3K/Akt、钙信号通路以及与突触后膜相关的细胞组分可能是ADP改善AD的关键因素。动物实验进一步确证ADP作用可以上调小鼠海马N-甲基-D-天氡氨酸离子型谷氨酸受体2A(GluN2A)、突触后致密蛋白95(PSD95)、钙蛋白酶1(calpain-1)、磷酸化蛋白激酶B(p-Akt)、磷酸化环腺苷酸应答元件结合蛋白(p-CREB)、脑源性神经营养因子(BDNF)的表达,抑制p-GluN2B和calpain-2表达。分子对接结果表明,ADP的核心成分panaxacol、dehydroeburicoic acid、deoxyharringtonine等与已验证靶点GRIN2A、GRIN2B、PSD95等均具有较强结合力。综上表明,ADP能够改善D-gal协同AβO诱导的小鼠AD样病理变化和行为改变,其调控机制可能和NMDAR/calpain、Akt/CREB/BDNF通路有一定的关联性。

关键词：安神定志方阿尔茨海默病氧化应激炎症反应突触缺失

Heavy metal accumulation characteristics and physiological response of Sabina chinensis and Platycladus orientalis to atmospheric pollution

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Journal of Environmental Sciences 2022年第2期34卷 192-201页

作者： Ning cui Laiye qu Gang Wu State Key Laboratory of Urban and Regional Ecology Research Center for Eco-environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China

Heavy metal(Cu,Mn,Zn,Pb,and Cd)concentrations were measured in the leaves of Sabina chinensis and Platycladus orientalis collected from urban,suburban,and rural sites in Tianjin,China.Photosynthetic pigment contents,reactive oxygen species content,malondialdehyde(MDA)content and antioxidant enzyme activity were investigated,providing physiological response parameters.Our comparison of the sites revealed that urbanization significantly influenced the heavy metal concentrations in both plant leaves.At the rural site,both plant leaves exhibited the lowest heavy metal accumulation.The highest Cu,Mn,and Zn concentrations were found in S.chinensis leaves from the urban site;the highest Pb and Cd concentrations were found in P.orientalis leaves from the urban site.These results indicate that the urban site contained larger heavy metal concentrations in the plant leaves that may reflect the anthropogenic emission gradient.It is also found that S.chinensis may be used to monitor airborne heavy metal pollution because it is highly quick response to heavy metals,while P.orientalis may be used for mitigation due to its high resistance.The results of this study can contribute to the development of monitoring and environmental management plans by providing information on sensitive and resistant tree species for city greening in North China.

关键词： Atmospheric heavy metal pollutions Sabina chinensis Platycladus orientalis Physiological responses