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Traditional Medicine Research 2017年第4期2卷 169-175页

作者： Yi-Teng Wang Min Zhang mei-lun liu Li-Ming Zhang Hong Chen Tan Li Department of Pharmacognosy and Pharmaceutics Logistics University of Chinese People’s Armed Police ForceTianjinChina Department of Science Research Logistics University of Chinese People’s Armed Police ForceTianjinChina Department of Pathogen Biology and Immunology Logistics University of Chinese People’s Armed Police ForceTianjinChina

Objective:Pseudolaric acid B(PB)is a newly identified diterpenoid isolated from Tujinpi(Cortex Pseudolaricis).In the present study,we aimed to explore the anti-inflammatory effects of PB on atopic dermatitis(AD),as well as the molecular mechanisms underlying its ***:BALB/c mice treated with 2,4-dinitrofluorobenzene were orally administered with PB(10 mg?kg-1?d-1).After evaluating the AD score,serum levels of IgE and the mRNA expression of NLRP3 inflammasome and IL-1βwere measured by ELISA and qRT-PCR ***:The results showed that PB treatment significantly ameliorated the development of AD-like clinical symptoms and effectively suppressed the infiltration of inflammatory ***,PB inhibited the expression of NLRP3 inflammasome and IL-1βin skin lesions,and downregulated serum IgE ***:The anti-inflammatory properties of PB were demonstrated using the 2,4-dinitrofluorobenzene-induced mouse model of AD-like skin *** study highlighted the potential use of PB as a novel therapeutic agent for the treatment of inflammation-associated skin diseases.

关键词： Pseudolaric acid B Atopic dermatitis Inflammation NLRP3 inflammasome

Recent progress in the applications of presynaptic dopaminergic positron emission tomography imaging in parkinsonism

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Neural Regeneration Research 2025年第1期20卷 93-106页

作者： Yujie Yang Xinyi Li Jiaying Lu Jingjie Ge Mingjia Chen Ruixin Yao mei Tian Jian Wang Fengtao liu Chuantao Zuo Key Laboratory of Arrhythmias Ministry of EducationDepartment of Medical GeneticsShanghai East HospitalSchool of MedicineTongji UniversityShanghaiChina Department of Neurology National Research Center for Aging and MedicineNational Center for Neurological Disordersand State Key Laboratory of Medical NeurobiologyHuashan HospitalFudan UniversityShanghaiChina Department of Nuclear Medicine&PET Center National Center for Neurological Disordersand National Clinical Research Center for Aging and MedicineHuashan HospitalFudan UniversityShanghaiChina International Human Phenome Institutes(Shanghai) ShanghaiChina Human Phenome Institute Fudan UniversityShanghaiChina

Nowadays,presynaptic dopaminergic positron emission tomography,which assesses deficiencies in dopamine synthesis,storage,and transport,is widely utilized for early diagnosis and differential diagnosis of *** review provides a comprehensive summary of the latest developments in the application of presynaptic dopaminergic positron emission tomography imaging in disorders that manifest *** conducted a thorough literature search using reputable databases such as PubMed and Web of *** criteria involved identifying peer-reviewed articles published within the last 5 years,with emphasis on their relevance to clinical *** findings from these studies highlight that presynaptic dopaminergic positron emission tomography has demonstrated potential not only in diagnosing and differentiating various Parkinsonian conditions but also in assessing disease severity and predicting ***,when employed in conjunction with other imaging modalities and advanced analytical methods,presynaptic dopaminergic positron emission tomography has been validated as a reliable in vivo *** validation extends to screening and exploring potential neuropathological mechanisms associated with dopaminergic *** summary,the insights gained from interpreting these studies are crucial for enhancing the effectiveness of preclinical investigations and clinical trials,ultimately advancing toward the goals of neuroregeneration in parkinsonian disorders.

关键词： aromatic amino acid decarboxylase brain imaging dopamine transporter Parkinson’s disease parkinsonism positron emission tomography presynaptic dopaminergic function vesicle monoamine transporter type 2

Rational modulation of fluorophosphate cathode by anionic groups to reduce the polarization behavior for fast-charging sodium-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 509-521页

作者： Xinyuan Wang Fan Zhang Xingyu Zhou Qian Wang Changyu liu Yangyang liu Hui Wang Xiaojie liu Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University

Na3V2（PO4）2O2F （VP） is recognized as a promising cathode material for sodium-ion batteries due to its stable structural framework and high specific *** functional theory （DFT） and finite element simulations show that incorporating SO42-into VP decreases its band gap,lowers the migration energy barrier,and ensures a uniform Na+concentration gradient and stress distribution during charge and discharge ***,the average Na+diffusion coefficient of Na3V2（PO4）1.95（SO4）0.05O2F（VPS-1） is roughly double that of VP,leading to enhanced rate capability (80 C,75.5 mAh g-1) and cycling stability (111.0 mAh g-1capacity after 1000 cycles at 10 C current density) for ***-1 exhibits outstanding fast-charging capabilities,achieving an 80%state of charge in just 8.1 *** assembled VPS-1//SbSn/NPC full cell demonstrated stable cycling over 200 cycles at a high 5 C current,maintaining an average coulombic efficiency of 95.35%.

关键词： Anionic group modulation Polarization behavior Fast-charging Sodium-ion battery Fluorophosphate Cathode

Effects of cupric ions on the corrosion behavior of aluminum alloy 5A02 in ethylene glycol–water solution

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International Journal of Minerals,Metallurgy and Materials 2017年第4期24卷 423-431页

作者： Shu-lun Gao mei Yu Jian-hua liu Bing Xue Song-mei Li School of Materials Science and Engineering Beihang University Beijing 100191 China

The effects of cupric ions on the corrosion behavior of aluminum alloy 5A02 in ethylene glycol–water solutions were studied by potentiodynamic polarization,electrochemical noise(EN),and complementary techniques including scanning electron microscopy(SEM),atomic force microscopy(AFM),and X-ray photoelectron spectroscopy(XPS). A positive corrosion potential and increased corrosion current were observed due to the deposition of copper. The results demonstrate that the main corrosion type was pitting and the increasing cupric ion concentration augmented the pitting density. The pits became larger and deeper as a result of the embedment of copper into the surface of the alloy. Cupric ions were preferentially deposited at the defects around the secondary phase,leading to the formation of Al–Cu microgalvanic couples,which increased the corrosion rate. The corrosion rate gradually reached a stable value as the concentration of cupric ions was increased beyond 10 mmol/L.

关键词： aluminum alloys metal corrosion cupric ions ethylene glycol pitting

Quasi-cyclic LDPC codes with high-rate and low error floor based on Euclidean geometries

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The Journal of China Universities of Posts and Telecommunications 2012年第2期19卷 96-99页

作者： liu Yuan-hua ZHANG mei-ling FAN Jiu-lun School of Communication and Information Engmeering Xi’an University of Posts and TelecommunicationsXi’an 710121China

An improved Euclidean geometry approach to design quasi-cyclic （QC） Low-density parity-check （LDPC） codes with high-rate and low error floor is presented. The constructed QC-LDPC codes with high-rate have lower error floor than the original codes. The distribution of the minimum weight codeword is analyzed, and a sufficient existence condition of the minimum weight codeword is found. Simulations show that a lot of QC-LDPC codes with lower error floor can be designed by reducing the number of the minimum weight codewords satisfying this sufficient condition.

关键词： low-density parity-check codes quasi-cyclic Euclidean geometry

DMRG Studies on Properties of Undoped and Doped Molecule-Based Ferromagnetic Chain

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Communications in Theoretical Physics 2005年第6X期44卷 1099-1102页

作者： YAO Kai-lun QIN Yi liu Qing-mei liu Zu-Li Department of Physics and State Key Laboratory of Laser Technology Huazhong University of Science and Technology Wuhan 430074 China International Center of Materials Physics the Chinese Academy of Sciences Shengyang 110015 China

By using density matrix renormalization group （DMRG） method a model for organic molecule-based ferromagnetic chain is proposed. It is found that the ground states of Undoped and doped systems both exhibit ferrimagnetic ordering. The e-e repulsion plays an important role in the stability of the ferromagnetic state either in doped system or undoped system. For the undoped system, each unit cell coatains half of the total spins, which is consistent with Lieb＇s theorem. It is convinced that when the system is doped with one electron, a charge density wave is excited, which decreases the amplitude of spin density wave,therefore acting against the stability of ferromagnetic state.

关键词： DMRG antiferromagnetic exchange SDW spin density undoped doped

Role of the Greenland Sea ice anomaly in the late-spring drought over Northwest China

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 1-5页

作者： Yang liu Huopo Chen Nansen-Zhu International Research Centre Institute of Atmospheric Physics Chinese Academy of SciencesBeijingChina Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University for Information Science and TechnologyNanjingChina

Drought across Northwest China in late spring has exerted a vital effect on the local climate and agricultural production,and has been alleviated during the past *** study explored the influence of the preceding Arctic sea ice on the May drought in Northwest China caused by the precipitation *** analysis indicated that when the Greenland Sea ice concentration is abnormally high during February to April,the dry conditions in Northwest China tend to be *** increase of sea ice in the Greenland Sea can excite a meridional circulation,which causes sea surface temperature(SST)anomalies in the North Atlantic via the sea-air interaction,manifested as significant warm SST anomalies over the south of Greenland and the subtropical North Atlantic,but negative SST anomalies over the west of the *** abnormal SST pattern maintains to May and triggers a zonal wave train from the North Atlantic through Scandinavia and Central Asia to Northwest China,leading to abnormal cyclones in Northwest ***,Northwest China experiences a more humid climate than usual.

关键词： Arctic sea ice Greenland Sea North Atlantic SST Drought Northwest China

湖北省文旅产业耦合发展评价及时空演化特征研究

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黄冈师范学院学报 2025年第1期45卷 109-117页

作者：尹建军刘伟中王巧刘美伦黄冈师范学院地理与旅游学院湖北黄冈438000 北京联合大学应用文理学院北京100191 福建农林大学经济与管理学院福建福州350002 湖南师范大学旅游学院湖南长沙410081

文旅产业高质量融合发展,对新时代提升旅游业发展效率、推动文化供给侧结构性改革、改善文化产业内生增长动力不足等意义重大。以湖北省为研究靶向,构建文化产业和旅游产业两大指标体系,选取2010—2021年相关指标数据,利用熵值法确定指... 详细信息

文旅产业高质量融合发展,对新时代提升旅游业发展效率、推动文化供给侧结构性改革、改善文化产业内生增长动力不足等意义重大。以湖北省为研究靶向,构建文化产业和旅游产业两大指标体系,选取2010—2021年相关指标数据,利用熵值法确定指标权重,计算综合发展效益值,借助耦合度与耦合协调度模型,测度文旅产业融合发展耦合度和耦合协调度,并分析12年来的时空演化特征。研究发现:1.研究期内,湖北省各地市州文化产业与旅游产业综合发展效益值整体呈现增长态势,且时空异质性显著,受2019年底暴发的新冠疫情的冲击,二者综合效益下滑明显;2.湖北省文化产业与旅游产业耦合效应整体处于中等水平,呈现由“低发展水平-低耦合度”向“中等发展水平-中等耦合度”再向“中高发展水平-较高耦合度”演变的趋势,疫情影响下的耦合效应呈现“中低发展水平-较高耦合度”的扭曲发展态势;3.文化产业与旅游产业耦合协调度持续增长,空间上呈中西部协调度低,东部协调度较高空间格局。研究建议:完善文旅顶层设计,加强政府高位引导;重视专业人才培养,强化产业队伍建设;塑造文旅产业品牌,助推产业集群形成;丰富产业科技内涵,提高文旅融合深度。

关键词：文化产业旅游产业耦合评价时空演化湖北省

Low-cost and fluoride-free synthesis of MFI zeolite nanosheets with enhanced stability for benzene alkylation with ethanol

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Journal of Energy Chemistry 2025年第1期100卷 458-468页

作者： Peng Zhu Cun liu Yiren Yu Guoshu Gao Yumeng Zhao Xiongfu Zhang Guodong liu Guohui Yang State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences

Zeolite nanosheets with a short b-axis thickness are highly desirable in lots of catalytic reactions due to their reduced diffusion resistance. Nevertheless, conventional synthesis methods usually require expensive structure-directing agents(SDAs), pricey raw materials, and eco-unfriendly fluorine-containing additives. Here, we contributed a cost-effective and fluoride-free synthesis method for synthesizing high-quality MFI zeolite nanosheets through a Silicalite-1(Sil-1) seed suspension and urea cooperative strategy, only with inexpensive colloidal silica as the Si source. Our approach was effective for synthesizing both Sil-1 and aluminum-containing ZSM-5 nanosheets. By optimizing key synthesis parameters,including seed aging time, seed quantity, and urea concentration, we achieved precise control over the crystal face aspect ratio and b-axis thickness. We also revealed a non-classical oriented nanosheet growth mechanism, where Sil-1 seeds induced the formation of quasi-ordered precursor particles, and the(010)crystal planes of these particles facilitated urea adsorption, thereby promoting c-axis-oriented *** obtained ZSM-5 nanosheets exhibited exceptional catalytic performance in the benzene alkylation with ethanol, maintaining stability for over 500 h, which is 5 times longer than traditional ZSM-5 catalysts. Furthermore, large-scale production of ZSM-5 nanosheets was successfully carried out in a 3 L highpressure autoclave, yielding samples consistent with those from laboratory-scale synthesis. This work marks a significant step forward in the sustainable and efficient production of MFI nanosheets using inexpensive and environmentally friendly raw materials, offering the broad applicability in catalysis.

关键词： MFI zeolite ZSM-5 Nanosheets Scale-up synthesis Aromatic alkylation

Controlled Radical Photopolymerization of n-Butyl Methacrylate in Bluk Mediated by HTEMPO

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Chinese Chemical Letters 2006年第8期17卷 1109-1112页

作者： Xiao Xuan liu mei HAN lun Yong DUAN Guang Guo WU Department of Chemistry College of Science Shantou University Shantou 515063

Controlled radical photopolymerization of n-butyl methacrylate（n-BMA） mediated by 4-hydroxy-2,2,6,6-tetramethyl-1-piperidinyloxy（HTEMPO） was carried out in bulk at ambient temperature. It was found that obtained n-BMA homopolymers exhibited narrow polydispersities of around 1.4, which was characterized by GPC. Plots of number-average molecular weight vs. conversion and Ln（[Mo]/[M]） vs. time were liner respectively, indicating that was a controlled photopolymerization.

关键词： photopolymerization nitroxide n-butyl methacrylate HTEMPO.