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Chinese Journal of Integrative Medicine 2011年第12期17卷 944-944页

作者： Zhang ting-dong Harbin Med Coll Affiliated Hosp 1 Harbin Peoples R China

ZHANG ting-dong, a medical professor from the First Affiliated Hospital of Harbin Medical University, was honored with the Outstanding Achievement in Life Science Award for the first application of arsenous acid in th... 详细信息

关键词： ZHANG ting-dong A Pioneer in Treating Leukemia with Arsenous Acid Wins the Outstanding Achievement in Life Science Award

Snap-through behaviors and nonlinear vibrations of a bistable composite laminated cantilever shell:an experimental and numerical study

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Applied Mathematics and Mechanics(English Edition) 2024年第5期45卷 779-794页

作者： Lele REN Wei ZHANG ting dong Yufei ZHANG State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong UniversityShanghai 200240China Department of Mechanics Guangxi UniversityNanning 530004China Beijing Key Laboratory of Nonlinear Vibrations and Strength of Mechanical Structures College of Mechanical EngineeringBeijing University of TechnologyBeijing 100124China School of Mechanical Engineering Beijing Institute of TechnologyBeijing 100081China

The snap-through behaviors and nonlinear vibrations are investigated for a bistable composite laminated cantilever shell subjected to transversal foundation excitation based on experimental and theoretical *** improved experimental specimen is designed in order to satisfy the cantilever support boundary condition,which is composed of an asymmetric region and a symmetric *** symmetric region of the experimental specimen is entirely clamped,which is rigidly connected to an electromagnetic shaker,while the asymmetric region remains free of *** motion paths are realized for the bistable cantilever shell by changing the input signal levels of the electromagnetic shaker,and the displacement responses of the shell are collected by the laser displacement *** numerical simulation is conducted based on the established theoretical model of the bistable composite laminated cantilever shell,and an off-axis three-dimensional dynamic snap-through domain is *** numerical solutions are in good agreement with the experimental *** nonlinear stiffness characteristics,dynamic snap-through domain,and chaos and bifurcation behaviors of the shell are quantitatively *** to the asymmetry of the boundary condition and the shell,the upper stable-state of the shell exhibits an obvious soft spring stiffness characteristic,and the lower stable-state shows a linear stiffness characteristic of the shell.

关键词： bistable composite laminated cantilever shell snap-through behavior nonlinear vibration nonlinear stiffness characteristic chaos and bifurcation

Investigating the Absorption and Desorption Behavior of Methylene Chloride in the Poly(aryl ether ketone) Film with Different Crystallinities

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Chinese Journal of Polymer Science 2024年第2期42卷 239-246,I0009页

作者： Hong-Ru Yang Jin-dong Zhang dong-ting Gao Gang Liu Chun-Hai Chen Jia-Nan Yao Center for Advanced Low-Dimension Materials State Key Laboratory for Modification of Chemical Fibers and Polymer MaterialsCollege of Materials Science and EngineeringDonghua UniversityShanghai201620China

Poly(aryl ether keton e)(PAEK) films with different crystallinities were obtained by controlling the cooling rate,which were subjected to the absorption and desorption of methylene chloride(CH_(2)Cl_(2)).We employed attenuated total reflection Fourier transform infrared(ATR-FTIR)spectroscopy analyses to investigate the diffusion behavior of CH_(2)Cl_(2) in PAEK films with different *** to the Fickian diffusion model,the calculated diffu sion coefficients of CH_(2)Cl_(2) in PAEK films were observed to decrease with increasing *** effect of CH_(2)Cl_(2)absorption and desorption on the mechanical properties of PAEK films with different crystallinity was further analyzed using tensile *** tensile tests exhibited that CH_(2)Cl_(2) has two concurrent effects:plasticization and solvent-induced *** scanning calorimetry(DSC) and wide-angle X-ray diffraction(WXRD) techniques further confirmed solvent-induced crystallization *** results would be beneficial to understand the solvent resistance of PAEK materials and consequently provide the practical application conditions of PAEK with a theoretical basis.

关键词： Poly(aryl ether ketone) Diffusion behavior Infrared spectra Solvent-induced crystallization Mechanical properties

Working condition recognition of sucker rod pumping system based on 4-segment time-frequency signature matrix and deep learning

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Petroleum Science 2024年第1期21卷 641-653页

作者： Yun-Peng He Hai-Bo Cheng Peng Zeng Chuan-Zhi Zang Qing-Wei dong Guang-Xi Wan Xiao-ting dong State Key Laboratory of Robotics Shenyang Institute of AutomationChinese Academy of SciencesShenyang 110016LiaoningChina Key Laboratory of Networked Control Systems Chinese Academy of SciencesShenyang 110016LiaoningChina Institutes for Robotics and Intelligent Manufacturing Chinese Academy of SciencesShenyang 110169LiaoningChina University of Chinese Academy of Sciences Beijing100049China School of Artifcial Intelligence Shenyang University of TechnologyShenyang 110870LiaoningChina

High-precision and real-time diagnosis of sucker rod pumping system(SRPS)is important for quickly mastering oil well *** learning-based method for classifying the dynamometer card(DC)of oil wells is an efficient diagnosis ***,the input of the DC as a two-dimensional image into the deep learning framework suffers from low feature utilization and high computational ***,different SRPSs in an oil field have various system parameters,and the same SRPS generates different DCs at different ***,there is heterogeneity in field data,which can dramatically impair the diagnostic *** solve the above problems,a working condition recognition method based on 4-segment time-frequency signature matrix(4S-TFSM)and deep learning is presented in this ***,the 4-segment time-frequency signature(4S-TFS)method that can reduce the computing power requirements is proposed for feature extraction of DC ***,the 4S-TFSM is constructed by relative normalization and matrix calculation to synthesize the features of multiple data and solve the problem of data ***,a convolutional neural network(CNN),one of the deep learning frameworks,is used to determine the functioning conditions based on the *** on field data verify that the proposed diagnostic method based on 4S-TFSM and CNN(4S-TFSM-CNN)can significantly improve the accuracy of working condition recognition with lower computational *** the best of our knowledge,this is the first work to discuss the effect of data heterogeneity on the working condition recognition performance of SRPS.

关键词： Sucker-rod pumping system Dynamometer card Working condition recognition Deep learning Time-frequency signature Time-frequency signature matrix

What is the Role of Gravity,Turbulence and Magnetic Fields in High-mass Star Formation Clouds?

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Research in Astronomy and Astrophysics 2024年第6期24卷 21-27页

作者： An-Xu Luo Hong-Li Liu Guang-Xing Li Sirong Pan dong-ting Yang School of Physics and Astronomy Yunnan UniversityKunming 650091China South-Western Institute for Astronomy Research Yunnan UniversityKunming 650500China

To explore the potential role of gravity,turbulence and magnetic fields in high-mass star formation in molecular clouds,this study revisits the velocity dispersion–size(σ–L)and density–size(ρ–L)scalings and the associated turbulent energy spectrum using an extensive data *** sample includes various hierarchical density structures in high-mass star formation clouds,across scales of 0.01–100 *** observeσ∝L^(0.26)andρ∝L^(-1.54)scalings,converging toward a virial equilibrium state.A nearly flat virial parameter–mass(α_(vir)-M)distribution is seen across all density scales,withα_(vir)values centered around unity,suggesting a global equilibrium maintained by the interplay between gravity and turbulence across multiple *** turbulent energy spectrum(E(k))analysis,based on theσ–L andρ–L scalings,yields a characteristic E(k)∝k^(-1.52).These findings indicate the potential significance of gravity,turbulence,and possibly magnetic fields in regulating dynamics of molecular clouds and high-mass star formation therein.

关键词： ISM:clouds stars:formation stars:kinematics and dynamics

Fanlian Huazhuo Formula alleviates high-fat diet-induced nonalcoholic fatty liver disease by modulating autophagy and lipid synthesis signaling pathway

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World Journal of Gastroenterology 2024年第30期30卷 3584-3608页

作者： Meng-Yuan Niu Geng-ting dong Yi Li Qing Luo Liu Cao Xi-Min Wang Qi-Wen Wang Yi-ting Wang Zhe Zhang Xi-Wen Zhong Wei-Bo Dai Le-Yu Li Pharmacology Laboratory Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Traditional Chinese MedicineZhongshan 528400Guangdong ProvinceChina Department of Endocrinology Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Traditional Chinese MedicineZhongshan 528400Guangdong ProvinceChina

BACKGROUND Fanlian Huazhuo Formula(FLHZF)has the functions of invigorating spleen and resolving phlegm,clearing heat and purging *** has been identified to have therapeutic effects on type 2 diabetes mellitus(T2DM)in clinical ***-alcoholic fatty liver disease(NAFLD)is frequently diagnosed in patients with ***,the therapeutic potential of FLHZF on NAFLD and the underlying mechanisms need further *** To elucidate the effects of FLHZF on NAFLD and explore the underlying hepatoprotective mechanisms in vivo and in *** HepG2 cells were treated with free fatty acid for 24 hours to induce lipid accumulation cell ***,experiments were conducted with the different concentrations of freeze-dried powder of FLHZF for 24 hours.C57BL/6 mice were fed a high-fat diet for 8-week to establish a mouse model of NAFLD,and then treated with the different concentrations of FLHZF for 10 *** FLHZF had therapeutic potential against lipid accumulation and abnormal changes in biochemical indicators in vivo and in *** experiments verified that FLHZF alleviated abnormal lipid metabolism might by reducing oxidative stress,regulating the AMPKα/SREBP-1C signaling pathway,activating autophagy,and inhibiting hepatocyte *** FLHZF alleviates abnormal lipid metabolism in NAFLD models by regulating reactive oxygen species,autophagy,apoptosis,and lipid synthesis signaling pathways,indicating its potential for clinical application in NAFLD.

关键词： Fanlian Huazhuo Formula Nonalcoholic fatty liver disease Autophagy Apoptosis AMPKα/SREBP-1C signal pathway Oxidative stress

In-situ physical/chemical cross-linked hydrogel electrolyte achieving ultra-stable zinc anode-electrolyte interface towards dendrite-free zinc ion battery

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Journal of Energy Chemistry 2024年第10期97卷 342-351页

作者： Chen-Yang Li Jiang-Lin Wang dong-ting Zhang Min-Peng Li Hao Chen Wei-Hai Yi Xin-Ying Ren Bao Liu Xue-Feng Lu Mao-Cheng Liu State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals Lanzhou University of Technology School of Materials Science and Engineering Lanzhou University of Technology Chaowei Power Group Co. LTD School of Vehicle Engineering Jiangsu University

Hydrogen evolution reaction（HER）,zinc corrosion,and dendrites growth on zinc metal anode are the major issues limiting the practical applications of zinc-ion ***,an in-situ physical/chemical cross-linked hydrogel electrolyte（carrageenan/polyacrylamide/ZnSO4,denoted as CPZ） has been developed to stabilize the zinc anode-electrolyte interface,which can eliminate side reactions and prevent dendrites *** in-situ CPZ hydrogel electrolyte improves the reversibility of zinc anode due to eliminating side reactions caused by active water ***,the electrostatic interaction between the SO4-groups in CPZ and Zn2+can encourage the preferential deposition of zinc atoms on（002） crystal plane,which achieve dendrite-free and homogeneous zinc *** in-situ hydrogel electrolyte offers a streamlined approach to battery manufacturing by allowing for direct integration into the ***,the Zn//Zn half battery with CPZ hydrogel electrolyte can enable an ultra-long cycle over 5500 h at a current density of 0.5 mA cm-2,and the Zn//Cu half battery reach an average coulombic efficiency of 99.37%.The Zn//V2O5-GO full battery with CPZ hydrogel electrolyte demonstrates94.5% of capacity retention after 2100 *** study is expected to open new thought for the development of commercial hydrogel electrolytes for low-cost and long-life zinc-ion batteries.

关键词： Dendrites growth Hydrogen evolution reaction and zinc corrosion In-suit CPZ hydrogel electrolyte Zinc anode-electrolyte interface Zn ion batteries

Periodontitis exacerbates pulmonary hypertension by promoting IFNγ^(+)T cell infiltration in mice

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International Journal of Oral Science 2024年第2期16卷 359-369页

作者： Xiaoqian Meng Linjuan Du Shuo Xu Lujun Zhou Boyan Chen Yulin Li Chumao Chen Huilin Ye Jun Zhang Guocai Tian Xuebing Bai ting dong Wenzhen Lin Mengjun Sun Kecong Zhou Yan Liu Wuchang Zhang Shengzhong Duan Department of Endodontics Shanghai Ninth People’s HospitalCollege of StomatologyShanghai Jiao Tong University School of MedicineShanghaiChina Laboratory of Oral Microbiota and Systemic Diseases Shanghai Ninth People’s HospitalCollege of StomatologyShanghai Jiao Tong University School of MedicineNational Center for StomatologyNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of StomatologyShanghaiChina Hongqiao International Institute of Medicine Shanghai Tongren Hospital/Faculty of Basic MedicineKey Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of EducationShanghai Jiao Tong University School of MedicineShanghaiChina Department of Orthodontics Shanghai Ninth People’s HospitalCollege of StomatologyShanghai Jiao Tong University School of MedicineShanghaiChina Department of Periodontology Shanghai Ninth People’s HospitalCollege of StomatologyShanghai Jiao Tong University School of MedicineShanghaiChina Stomatology Hospital School of StomatologyZhejiang University School of MedicineHangzhouChina

Uncovering the risk factors of pulmonary hypertension and its mechanisms is crucial for the prevention and treatment of the *** the current study,we showed that experimental periodontitis,which was established by ligation of molars followed by orally smearing subgingival plaques from patients with periodontitis,exacerbated hypoxia-induced pulmonary hypertension in ***,periodontitis dysregulated the pulmonary microbiota by promoting ectopic colonization and enrichment of oral bacteria in the lungs,contributing to pulmonary infiltration of interferon gamma positive(IFNγ^(+))T cells and aggravating the progression of pulmonary *** addition,we identified Prevotella zoogleoformans as the critical periodontitis-associated bacterium driving the exacerbation of pulmonary hypertension by periodontitis,and the exacerbation was potently ameliorated by both cervical lymph node excision and IFNγneutralizing *** study suggests a proof of concept that the combined prevention and treatment of periodontitis and pulmonary hypertension are necessary.

关键词： hypertension prevention interferon

1999—2020年中国沿海植被覆盖多时空尺度变化特征

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生态学报 2024年第16期44卷 7249-7263页

作者：侯婉侯西勇董婷安徽师范大学地理与旅游学院芜湖241002 中国科学院烟台海岸带研究所烟台264003

近些年气候变化与人类活动加剧,导致沿海地区植被覆盖发生复杂变化。基于1999—2020年SPOT⁃VGT NDVI数据,从格局—过程、变化趋势—持续特征、季节演化等方面,揭示中国沿海植被覆盖多时空尺度变化特征。结果表明:(1)中国沿海较高和高植... 详细信息

近些年气候变化与人类活动加剧,导致沿海地区植被覆盖发生复杂变化。基于1999—2020年SPOT⁃VGT NDVI数据,从格局—过程、变化趋势—持续特征、季节演化等方面,揭示中国沿海植被覆盖多时空尺度变化特征。结果表明:(1)中国沿海较高和高植被覆盖区占比高,中植被覆盖区占比较低,无和低植被覆盖区占比低。(2)中国沿海植被覆盖呈现波动但总体缓增的年际变化特征;年内变化表现为“∩”型曲线,存在明显的峰值(8月)和谷值(2月)。(3)年、月、季多时间尺度中国沿海植被覆盖变化均以“增加”为主,历史增加趋势、未来增加态势以及总体增加且将持续增加的区域都广泛分布,尤以辽宁东北部、冀北山区、闽浙山区、我国台湾中东部、两广山区、海南中部等最为显著。(4)年、月、季多时间尺度中国沿海植被覆盖变化为“降低”的区域面积均相对较少,历史降低趋势、未来降低态势以及总体降低且将持续降低的区域都呈现“环城市群”和“临农牧交错(或过渡)带”聚集的格局特征,在冀东南、山东半岛、长三角城市群、台湾海峡两岸、珠三角城市群等最为突出。研究有望为沿海植被保护、生态环境改善、气候变化适应等提供科学依据与理论支撑。

关键词：植被覆盖变化趋势持续性季节演化态势中国沿海

非对称铺设双稳态正交复合材料层合方形板的静力学与动力学分析

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振动工程学报 2024年第7期37卷 1169-1181页

作者：郭振坤徐佳乐董挺北京建筑大学机电与车辆工程学院北京100044 中国北方车辆研究所北京100072

建立了非对称铺设双稳态正交复合材料层合方形板的静力学和动力学模型。通过固化分析确定了三个平衡状态,展示了以温差绝对值为控制参数的超临界叉形分岔。通过稳定性分析确定了三个平衡状态为两个稳定平衡状态和一个不稳定平衡状态。... 详细信息

建立了非对称铺设双稳态正交复合材料层合方形板的静力学和动力学模型。通过固化分析确定了三个平衡状态,展示了以温差绝对值为控制参数的超临界叉形分岔。通过稳定性分析确定了三个平衡状态为两个稳定平衡状态和一个不稳定平衡状态。通过静力学分析确定了双势阱势能曲线,这有助于对动态跳跃现象的研究。通过在动力学分析中引入阻尼,分析了平衡点的动态分岔。通过数值模拟讨论了基础激励频率对动力学特性的影响。当激励频率处于一定范围内时,系统会发生双势阱大振幅动态跳跃和非线性振动,此频率范围可以被设定为特定频率带宽。双稳态系统的主要动力学特性表现为周期振动、概周期振动和混沌振动。

关键词：非线性振动复合材料层合方形板双稳态三种平衡状态动态跳跃

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