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Establishing an anti-doping internal whistleblower policy in China

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Journal of Sport and Health Science 2018年第3期7卷 337-338页

作者： zihao zhang Criminal Justice School Zhongnan University of Economics and Law

Performance enhancement is considered an essential part of sport.1 However,in the world of competitive and high-performance sports,there is increasing evidence of a high prevalence of performance-enhancing drug abuse.2-4 The use of drugsthat is,banned substances-has become a serious problem with significant social,ethical,policy,and personal consequences,5-7and consequently compromises the integrity of sports and sportsmanship at all levels of competition,as well as the health and well-being of individual athletes and public health in general.

关键词：运动科学健康科学个人休闲运动

TWO DIMENSIONAL SUBSONIC AND SUBSONIC-SONIC SPIRAL FLOWS OUTSIDE A POROUS BODY

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Acta Mathematica Scientia 2022年第4期42卷 1569-1584页

作者： Shangkun WENG zihao zhang School of Mathematics and Statistics Wuhan UniversityWuhan 430072China

In this paper,we investigate two dimensional subsonic and subsonic-sonic spiral flows outside a porous *** existence and uniqueness of the subsonic spiral flow are obtained via variational formulation,which tends to a given radially symmetric subsonic spiral flow at far *** optimal decay rate at far field is also derived by Kelvin ’s transformation and some elliptic *** extracting spiral subsonic solutions as the approximate sequences,we obtain the spiral subsonic-sonic limit solution by utilizing the compensated *** main ingredients of our analysis are methods of calculus of variations,the theory of second-order quasilinear equations and the compensated compactness framework.

关键词： Subsonic spiral flows Euler equations subsonic-sonic limit a porous body

基于卷积神经网络建立中药材自动识别的人工智能模型及应用程序

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中国全科医学 2025年第9期28卷 1128-1136页

作者：王甘红张子豪奚美娟夏开建周燕婷陈健江苏省常熟市中医院(常熟市新区医院)消化内科上海豪兄教育科技有限公司江苏省常熟市医学人工智能与大数据重点实验室江苏省常熟市第一人民医院消化内科

背景传统中药材检测手段依赖主观经验，难以满足中药材在准确分类与鉴别方面的需求。目的基于卷积神经网络（CNN）开发一款能够自动识别163种中药材的人工智能模型及电脑端应用程序。方法 2020年1月—2024年6月，采集了两个中药材数据... 详细信息

背景传统中药材检测手段依赖主观经验，难以满足中药材在准确分类与鉴别方面的需求。目的基于卷积神经网络（CNN）开发一款能够自动识别163种中药材的人工智能模型及电脑端应用程序。方法 2020年1月—2024年6月，采集了两个中药材数据集进行深度学习模型的训练、验证和测试，共包含163种中药材。通过准确率、灵敏度、特异度、精确率、受试者工作特征（ROC）曲线下面积（AUC）、F1分数等指标来衡量CNN模型的性能。在模型训练完成后，基于PyQt5技术开发了一款应用程序，供临床便携使用。结果本研究共纳入了276 767张图像，开发了EfficientNetB0、ResNet50、MobileNetV3、VGG19和ResNet18 5种模型，通过性能比较，EfficientNet＿B0模型在验证集上取得了最高的准确率（99.0%）和AUC(0.994 2)，被选为最佳模型。在测试集上，最佳模型对所有中药类别识别的准确率为99.0%、灵敏度为99.0%、特异度为100.0%、AUC为1.0，展现出良好的性能。结论基于卷积神经网络开发的深度学习模型能够快速准确地识别163种中药材，借助其高灵敏度的识别能力，为医师对中药材的鉴别提供有力辅助。

关键词：中药材模式识别,自动中药药材学应用程序人工智能 PyQt5 卷积神经网络

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Changes in leaf stomatal traits of different aged temperate forest stands

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Journal of Forestry Research 2021年第3期32卷 927-936页

作者： Qian Li Jihua Hou Nianpeng He Li Xu zihao zhang Beijing Key Laboratory of Forest Resources and Ecosystem Processes Beijing Forestry UniversityBeijing 100083People’s Republic of China Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101People’s Republic of China College of Resources and Environment University of Chinese Academy of SciencesBeijingPeople’s Republic of China Key Laboratory of Vegetation Ecology Ministry of EducationNortheast Normal UniversityChangchunPeople’s Republic of China

Stomata control carbon and water vapor exchange between the leaves and the atmosphere,thus infl uencing photosynthesis and *** of forest patches with different stand ages are common in nature,however,information of which stomatal traits vary among these stands and how,remains ***,seven different aged forest stands(6,14,25,36,45,55,and 100 years)were selected in typical temperate,mixed broadleaf-conifer forests of northeast *** density,size and relative area of 624 species,including the same species in stands of different ages were *** density,size and relative area were distributed log-normally,differing across all species and plant functional *** density ranged from 4.2 to 1276.7 stomata mm^(–2),stomatal size ranged from 66.6 to 8315.7μm^(2),and stomatal relative area 0.1–93.3%.There was a significant negative relationship between density and size at the species and functional group levels,while the relative stomatal area was positively correlated with density and *** traits of dominant species were relatively stable across different stand ages but were significantly different for *** results suggest that stomatal traits remain relatively stable for dominant species in natural forests and therefore,spatial variation in stomatal traits across forest patches does not need to be incorporated in future ecological models.

关键词： Forest restoration Stomatal traits Stand age Plant functional groups Variation

Development and tests of sliding contact line-powered track transporter

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International Journal of Agricultural and Biological Engineering 2023年第4期16卷 68-75页

作者： Yihua Jiang Fang Yang zihao zhang Shanjun Li College of Engineering Huazhong Agricultural UniversityWuhan 430070China China Agriculture(Citrus)Research System Wuhan 430070China National R&D Center for Citrus Preservation Wuhan 430070China Citrus Mechanization Research Base Ministry of Agriculture and Rural AffairsWuhan 430070China Key Laboratory of Agricultural Equipment in Mid-lower Yangtze River Ministry of Agriculture and Rural AffairsWuhan 430070China

In order to solve the problems of complexity of control systems and the limited power supply of traditional fuelpowered and battery-driven transporters operating in mountainous orchards,a sliding contact line-powered track transporter was designed and manufactured based on theoretical *** components of the transporter were developed such as a PLC-based(programmable logic controller)control system,a sliding contact power supply,and transmission system,and a position limit *** functions and performance of designed transporter were *** test results showed that the transporter exhibited a high stability of operation with an average operation velocity of 0.70 m/s,the maximum working slope of 48°,the maximum load of 400 kg,and the maximum remote control distance reaching 1482 *** the power supply circuit of sliding contact line was 108.8 m in length,the maximum voltage drop was 2.4 V,and the maximum power loss was 174.72 W,which were close to the theoretical calculation *** a single power supply cabinet,the transporter can operate normally for a maximum track distance of 175.69 *** the technical indicators of the transporter met the design requirements,and the above-mentioned problems such as complexity of the control system and limited energy supply of the traditional mountain orchard transporter were well *** study can provide reference for the design and optimization of mountain orchard transporter.

关键词： mountain orchard transporter remote control sliding contact line voltage drop

Effect of alumina and zirconia as binders on the activity of Fe-BEA for NH3-SCR of NO

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Frontiers of Environmental Science & Engineering 2018年第1期12卷 169-175页

作者： Jin Shil zihao zhang Mingxia Chen Zhixiang zhang Wenfeng Shangguan Shunchao Gu Hirano Shin-ichi Research Center for Combustion and Environment Technology Shanghai Jiao Tong University Shanghai 200240 China School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 China Hirano Institute for Materials Innovation Shanghai Jiao Tong University Shanghai 200240 China

Fe-BEA catalysts are active for the NH3-SCR of NO. For industrial application, a binder should be added to the Fe-BEA catalysts to make them tightly adhere to the monoliths. The addition of alumina and zirconia as binders to the Fe-BEA led to a different effect on NO conversion. The catalytic activity of the mixed samples was evaluated by the temperature programmed procedure in a flow-reactor sys!em, and themechaism was. analyzedvia SEM, BET, andXPS. Itwas found that larger ironparticles were tbrmed by the migration orparent tron pamcles in the Fe-BEA catalyst with alumina. This led to the increase of Fe3＋ magnitude and iron cluster, enhancing the abilities of NO oxidation and storage. Accordingly, the SCR activity increased slightly in low temperature but decreased sharply in high temperature. For the Fe-BEA with zirconia sample, NO oxidation and storage abilities decreased due to the less iron clusters. The increase of Fe ＋ magnitude resulted in higher catalytic oxidation ability, which gave rise to little change in the SCR activity compared with the Fe-BEA.

关键词： NH3-SCR NO Fe-BEA Binder Alumina Zirconia

Selective harvesting at rational intervals promotes carbon sequestration in temperate coniferous and broad-leaved mixed forests in China

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Journal of Forestry Research 2021年第3期32卷 1025-1033页

作者： Jihua Hou Junxia Tian Li Xu zihao zhang Zhi Chen Nianpeng He Beijing Key Laboratory of Forest Resources and Ecosystem Processes Beijing Forestry UniversityBeijing 100083People’s Republic of China Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101People’s Republic of China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049People’s Republic of China Key Laboratory of Vegetation Ecology Ministry of EducationNortheast Normal UniversityChangchun 130024People’s Republic of China

Evidence-based selective cutting at prescribed intervals as part of good forest management can enhance the carbon sequestration capacity of the *** effect of forest management on carbon sequestration has,however,not been ***,carbon content of various organs was measured for 323 tree species,247 shrub species,and233 herb species in seven temperate coniferous and broadleaved mixed forests that were subjected to selective cutting with restoration durations of 100,55,45,36,25,14,and6 years to explore dynamic changes in carbon *** results showed that biomass carbon allocation in different organs followed a pattern:trunk>root>branch>leaf for all *** longer restoration durations,more carbon accumulated in different organs and in ***,when the restoration duration exceeded 50 years,carbon storage in ecosystem was larger than that in primary forests with 100-year cutting intervals,suggesting that a reasonable selective cutting interval can increase forest carbon *** diameter at breast height(DBH)and forest carbon storage were significantly positively correlated,and carbon storage of selectively cut forests exceeded that of primary forests when the stand mean DBH exceeded 15.66 ***,mean DBH of forests can be an indicator for combining sustainable forest management and forest carbon ***,the classic coefficients of 0.45 and 0.50 used to estimate carbon sequestration underestimated values by 2.65%and overestimated by 8.16%,respectively,in comparison with the measured carbon content from different plant organs.

关键词： Selective cutting Forests Diameter at breast height Carbon Storage Management Restoration

All‑Covalent Organic Framework Nanofilms Assembled Lithium‑Ion Capacitor to Solve the Imbalanced Charge Storage Kinetics

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Nano-Micro Letters 2024年第6期16卷 246-260页

作者： Xiaoyang Xu Jia zhang zihao zhang Guandan Lu Wei Cao Ning Wang Yunmeng Xia Qingliang Feng Shanlin Qiao College of Chemistry and Pharmaceutical Engineering Hebei University of Science and TechnologyShijiazhuang 050018People’s Republic of China School of Chemistry and Chemical Engineering Northwestern Polytechnical UniversityXi’an 710072People’s Republic of China Hebei Engineering Research Center of Organic Solid Photoelectric Materials for Electronic Information Shijiazhuang 050018People’s Republic of China

Free-standing covalent organic framework(COFs)nanofilms exhibit a remarkable ability to rapidly intercalate/de-intercalate Li^(+) in lithium-ion batteries,while simultaneously exposing affluent active sites in *** development of these nanofilms offers a promising solution to address the persistent challenge of imbalanced charge storage kinetics between battery-type anode and capacitor-type cathode in lithium-ion capacitors(LICs).Herein,for the first time,custom-made COFBTMB-TP and COFTAPB-BPY nanofilms are synthesized as the anode and cathode,respectively,for an all-COF nanofilm-structured *** COFBTMB-TP nanofilm with strong electronegative–CF3 groups enables tuning the partial electron cloud density for Li^(+) migration to ensure the rapid anode kinetic *** thickness-regulated cathodic COFTAPB-BPY nanofilm can fit the anodic COF nanofilm in the *** to the aligned 1D channel,2D aromatic skeleton and accessible active sites of COF nanofilms,the whole COFTAPB-BPY//COFBTMB-TP LIC demonstrates a high energy density of 318 mWh cm^(−3) at a high-power density of 6 W cm^(−3),excellent rate capability,good cycle stability with the capacity retention rate of 77%after *** COFTAPB-BPY//COFBTMB-TP LIC represents a new benchmark for currently reported film-type LICs and even film-type *** being comprehensively explored via ex situ XPS,7Li solid-state NMR analyses,and DFT calculation,it is found that the COFBTMB-TP nanofilm facilitates the reversible conversion of semi-ionic to ionic C–F bonds during lithium ***-TP exhibits a strong interaction with Li^(+) due to the C–F,C=O,and C–N bonds,facilitating Li^(+) desolation and absorption from the *** work addresses the challenge of imbalanced charge storage kinetics and capacity between the anode and cathode and also pave the way for future miniaturized and wearable LIC devices.

关键词： Covalent organic frameworks Lithium-ion capacitor Charge storage kinetic

Reprogrammed siTNFα/neutrophil cytopharmaceuticals targeting inflamed joints for rheumatoid arthritis therapy

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Acta Pharmaceutica Sinica B 2023年第2期13卷 787-803页

作者： Yijun Chen Kaiming Li Mengying Jiao Yingshuang Huang zihao zhang Lingjing Xue Caoyun Ju Can zhang State Key Laboratory of Natural Medicines Jiangsu Key Laboratory of Drug Discovery for Metabolic DiseasesCenter of Advanced Pharmaceuticals and BiomaterialsChina Pharmaceutical UniversityNanjing 210009China

Rheumatoid arthritis(RA)is an autoimmune disease characterized by severe synovial inflammation and cartilage *** great progress in RA therapy,there still lacks the drugs to completely cure RA ***,we propose a reprogrammed neutrophil cytopharmaceuticals loading with TNFα-targeting-siRNA(siTNFα)as an alternative anti-inflammatory approach for RA *** loaded siTNFαact as not only the gene therapeutics to inhibit TNFαproduction by macrophages in inflamed synovium,but also the editors to reprogram neutrophils to anti-inflammatory *** the active tendency of neutrophils to inflammation,the reprogrammed siTNFα/neutrophil cytopharmaceuticals(siTNFα/TP/NEs)can rapidly migrate to the inflamed synovium,transfer the loaded siTNFαto macrophages followed by the significant reduction of TNFαexpression,and circumvent the pro-inflammatory activity of neutrophils,thus leading to the alleviated synovial inflammation and improved cartilage *** work provides a promising cytopharmaceutical for RA treatment,and puts forward a living neutrophil-based gene delivery platform.

关键词： Neutrophil cytopharmaceuticals siRNA Macrophages Rheumatoid arthritis Tumor necrosis factorα Gene delivery Anti-inflammatory Cartilage protection