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全球化视域下射艺的传承与创新——基于东亚三国传统弓箭文化的比较

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上海体育大学学报 2024年第6期48卷 70-80页

作者：胡汨华东政法大学体育部上海201620

在全球化不断推进的背景下,东亚三国的传统弓箭文化面临西方现代射箭文化的冲击。为了唤醒国民对中国传统体育文化复兴与传承的认同与重视,扭转异化现象,以弓箭为例,运用文化比较理论在全球化视角下比较中、日、韩三国的传统弓箭文化。... 详细信息

在全球化不断推进的背景下,东亚三国的传统弓箭文化面临西方现代射箭文化的冲击。为了唤醒国民对中国传统体育文化复兴与传承的认同与重视,扭转异化现象,以弓箭为例,运用文化比较理论在全球化视角下比较中、日、韩三国的传统弓箭文化。发现,中、日、韩三国弓箭文化同源于儒家文化,均具备“观德之射”“礼仪之射”的特性,但各国在传承中形成了各自独特的弓箭文化,其在核心价值、称谓、器物、神话、制度习俗等方面有所不同。借鉴日韩两国在传统弓箭文化传承方面的经验,通过提炼核心价值、统一称谓、固化礼仪与规范、选择传承路径等方式,寻求中国传统弓箭文化的当代创新性发展之路。

关键词：全球化儒家文化传统弓箭射艺弓道国弓文化比较

Dielectric and ferroelectric characteristics of Ba(Ti_(0.25)Zr_(0.25)Hf_(0.25)Sn_(0.25))O_(3)high-entropy ceramics

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Journal of Materiomics 2023年第4期9卷 634-641页

作者： Rui hu mi Bu Hang Chen Xiao Li Zhu Xiang ming Chen School of Materials Science and Engineering Zhejiang UniversityHangzhou310027China

Ba(Ti_(0.25)Zr_(0.25)Hf_(0.25)Sn_(0.25))O_(3)high-entropy ceramics were prepared by a standard solid state reaction process,and the dielectric and ferroelectric characteristics were investigated together with the structures.Both X-ray diffraction(XRD)and energy dispersive spectroscopy(EDS)analysis demonstrated a single-phase perovskite structure in the present ceramics.A broad dielectric peak with strong frequency dispersion feature was determined,which indicated the typical relaxor nature originating from the nanoscale ferroelectric domain structures.These resulted from the structural distortion and chemical disorder due to high-entropy,where the long-range order of ferroelectric domains was destroyed.The homogeneous microstructure led to the reduced leakage current density and significantly improved dielectric strength,which was desired for the practical applications.Compared with the similar systems of Ba(Ti_(1-x)Zr_(x))O_(3)&Ba(Ti_(1-x)Sn_(x))O_(3),the present high-entropy ceramics indicated better relaxor ferroelectric characteristics.

关键词： High-entropy ceramic microstructure Perovskite Relaxor ferroelectric

Hierarchical Capillary Coating to Biofunctionlize Drug-Eluting Stent for Improving Endothelium Regeneration

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Research 2020年第1期2020卷 81-94页

作者： Jing Wang Yunfan Xue Jun Liu Mi Hu He Zhang Kefeng Ren Yunbing Wang Jian Ji MOE Key Laboratory of Macromolecule Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027China National Engineering Research Center for Biomaterials Sichuan UniversityChengdu 610064China

The drug-eluting stent(DES)has become one of the most successful and important medical devices for coronary heart disease,but yet suffers from insufficient endothelial cell(EC)growth and intima repair,eventually leading to treatment failure.Although biomacromolecules such as vascular endothelial growth factor(VEGF)would be promising to promote the intima regeneration,combining hydrophilic and vulnerable biomacromolecules with hydrophobic drugs as well as preserving the bioactivity after harsh treatments pose a huge challenge.Here,we report on a design of hierarchical capillary coating,which composes a base solid region and a top microporous region for incorporating rapamycin and VEGF,respectively.The top spongy region can guarantee the efficient,safe,and controllable loading of VEGF up to 1μg/cm^(2) in 1 minute,providing a distinctive real-time loading capacity for saving the bioactivity.Based on this,we demonstrate that our rapamycin-VEGF hierarchical coating impressively promoted the competitive growth of endothelial cells over smooth muscle cells(ratio of EC/SMC~25)while relieving the adverse impact of rapamycin to ECs.We further conducted the real-time loading of VEGF on stents and demonstrate that the hierarchical combination of rapamycin and VEGF showed remarkable endothelium regeneration while maintaining a very low level of in-stent restenosis.This work paves an avenue for the combination of both hydrophobic and hydrophilic functional molecules,which should benefit the next generation of DES and may extend applications to diversified combination medical devices.

关键词： Regeneration eventually guarantee

Novel montmorillonite-sulfur composite for enhancement of selective adsorption toward cesium

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Green Energy & Environment 2021年第6期6卷 893-902页

作者： Shangqing Chen Jiayin hu Guoliang mi Yafei Guo Tianlong Deng Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization College of Chemical Engineering and Materials ScienceTianjin University of Science and TechnologyTianjin300457China College of Marine and Environmental Science Tianjin University of Science and TechnologyTianjin300457China

The selective elimination of radioactive cesium from complicated wastewater is imperative in view of environment and human health.Montmorillonite has been accepted as one of the most promising adsorbents for cesium purification.However,its poor selectivity still remains a major challenge.Herein,a novel montmorillonite-sulfur composite was developed via a facile one-step solvent-free method and used for Cs^(+) removal.Owing to the fact that soft Lewis base S^(2-) ligand interacted more strongly with softer Lewis acid Cs^(+) than other cations,the capacity and selectivity towards Cs^(+) was significantly enhanced.In this case,a large capacity of 160.9 mg g^(-1) was achieved.The distribution coefficient value(~4000 mL g^(-1))was 3-times larger than that of pristine montmorillonite(~1500 mL g^(-1)).Moreover,this composite could be easily recycled and reused within five times recycling experiments.Therefore,this low-cost and facilely prepared composite are expected to be used for the selective removal of Cs^(+) from complicated wastewater containing various competing ions.

关键词： Cesium Montmorillonite Sulfur Selectivity Wastewater

Convergence of the Interior Penalty Integral Equation Domain Decomposition Method

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Journal of Electronic Science and Technology 2019年第2期17卷 152-160页

作者： Bo mi Yu hu Zhang Liu Ling Qin School of Information Science and Engineering Chongqing Jiaotong University Chongqing 400074 China College of Physics and Engineering Chengdu Normal University Chengdu 611130 China

To solve electrically large scattering problems with limited memory, a Gauss-Seidel iteration scheme is applied to solve the interior penalty integral equation domain decomposition method. Since the original stabilization parameter in this method is frequency-dependent, the convergence of stationary iterations shows obvious dependence on frequency and slow convergence can be observed in some frequency bands. To avoid this dependence and obtain fast convergence in a wide frequency band, a frequency-independent stabilization parameter is introduced. This parameter is chosen proportionally to the average mesh length and inversely proportionally to the wavelength. Numerical examples are proposed to verify the effectiveness of the proposed approach.

关键词： Domain decomposition electromagnetic scattering interior penalty perfect electrically conducting

Expansion and expression diversity of FAR1/FRS-like genes provides insights into flowering time regulation in roses

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Plant Diversity 2021年第2期43卷 173-179页

作者： mi-Cai Zhong Xiao-Dong Jiang Wei-hua Cui Jin-Yong hu CAS Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of SciencesKunming 650201China University of Chinese Academy of Sciences Beijing 100049China

Roses are important horticultural plants with enormous diversity in flowers and flowering behavior.However,molecular regulation of flowering time variation in roses remains poorly characterized.Here,we report an expansion of the FAR1/FRS-like genes that correlates well with the switch to prostrate-toerect growth of shoots upon flowering in Rosa wichuraiana‘Basye's Thornless'(BT).With the availability of the high-quality chromosome-level genome assembly for BT that we developed recently,we identified 91 RwFAR1/FRS-like genes,a significant expansion in contrast to 52 in Rosa chinensis‘Old Blush’(OB),a founder genotype in modern rose domestication.Rose FAR1/FRS-like proteins feature distinct variation in protein domain structures.The dispersed expansion of RwFAR1/FRS-like genes occurred specifically in clade I and II and is significantly associated with transposon insertion in BT.Most of the RwFAR1/FRS-like genes showed relatively higher expression level than their corresponding orthologs in OB.FAR1/FRS-like genes regulate light-signaling processes,shade avoidance,and flowering time in Arabidopsis thaliana.Therefore,the expansion and duplication of RwFAR1/FRS-like genes,followed by diversification in gene expression,might offer a novel leverage point for further understanding the molecular regulation of the variation in shoot-growth behavior and flowering time in roses.

关键词： Rose FAR1/FRS-Like genes Gene family expansion Flowering time Shoot growth behavior

Pore-Directed Solid-State Selective Photoinduced E–Z Isomerization and Dimerization within Metal–Organic Frameworks

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CCS Chemistry 2023年第5期5卷 1225-1232页

作者： Shu-Li Chen Yan mi Fei-Long hu David James Young Jianping Lang Key Laboratory of Chemistry and Engineering of Forest Products State Ethnic Affairs CommissionGuangxi Minzu UniversityNanning 530006Guangxi College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123Jiangsu College of Engineering IT and EnvironmentCharles Darwin UniversityDarwin 0909Northern Territory

Design and construction of suitable pore microenvironments for selective catalytic reactions of small guest molecules is a major goal for chemists.Herein,we report control of competitive E–Z photoisomerization and photodimerization within porous metal–organic frameworks(MOFs)by fine-tuning the pore microenvironments using different dicarboxylate linkers.MOFs with small pores((E)-X_(MOF_(1))and(E)-X_(MOF_(1))′)favor the photoinduced E–Z isomerization of one encapsulated diaryl alkene substrate while those with large pores(((E)-X)_(2MOF_(2)))prefer the photodimerization of two encapsulated alkene substrates.Both reactions show broad functional group compatibility and proceed stereospecifically in good yields under mild conditions.High local concentration of diaryl alkene ligands and their preorientation within pores facilitate stereoselective dimerization.This pore engineering strategy is applicable to control and create pore microenvironemnts for other photoinduced organic reactions within porous MOFs.

关键词： pore engineering E–Z photoisomerization photodimerization metal–organic frameworks solid-state reaction

Two-dimensional NMR inversion based on fast norm smoothing method

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Energy Geoscience

Energy Geoscience 2022年第1期3卷 23-34页

作者： Youlong Zou Jun Li Song hu Junlei Su mi Liu Jun Zhang Petroleum Exploration and Production Research Institute SINOPECBeijing100083China

Two-dimensional(2D)nuclear magnetic resonance(NMR)inversion operates with massive echo train data and is an ill-posed problem.It is very important to select a suitable inversion method for the 2D NMR data processing.In this study,we propose a fast,robust,and effective method for 2D NMR inversion that improves the computational efficiency of the inversion process by avoiding estimation of some unneeded regularization parameters.Firstly,a method that combines window averaging(WA)and singular value decomposition(SVD)is used to compress the echo train data and obtain the singular values of the kernel matrix.Subsequently,an optimum regularization parameter in a fast manner using the signal-to-noise ratio(SNR)of the echo train data and the maximum singular value of the kernel matrix are determined.Finally,we use the Butler-Reeds-Dawson(BRD)method and the selected optimum regularization parameter to invert the compressed data to achieve a fast 2D NMR inversion.The numerical simulation results indicate that the proposed method not only achieves satisfactory 2D NMR spectra rapidly from the echo train data of different SNRs but also is insensitive to the number of the final compressed data points.

关键词： 2D NMR inversion Norm smoothing Fast regularization parameter selection

Differences between triggered lightning striking to ground and distribution line inferred from measured currents and electromagnetic fields

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High Voltage 2022年第4期7卷 705-717页

作者： Li Cai Qiang hu Jianguo Wang mi Zhou Quanxin Li Rui Su Yijun huang School of Electrical Engineering and Automation Wuhan UniversityWuhanChina

In 2018-2019,two types of rocket-triggered lightning tests,that is,striking to ground and distribution line,were conducted in Guangdong,China.The main focus of this paper is to compare the waveform parameters of the return strokes(RS)from the two tests.For current,the 10%-90%risetime of RS from lightning striking to distribution line is 2.4 times higher than that striking to ground,and the differences in the other parameters are small.For close magnetic field,the RS from lightning striking to distribution line have a lower peak(30%lower after considering the peak current)and a larger risetime and half-peak width time;besides,it is necessary to divide the front edge of the close magnetic field waveform into two parts:leader(BL)and return stroke(BRS).For close electric field,the close RS electric field peak(ERS)was less sensitive to distance than the leader electric field peak(EL).For far electric field,the differences in waveform parameters of RS from the two tests were not significant,but after considering the peak current,the normalised initial electric field peak(EP)of RS from lightning striking to distribution line was 14%lower than that striking to ground.

关键词： distribution striking lightning