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《只此青绿》:发扬中华文化舞绘数字中国

吉林艺术学院学报 2024年第2期 66-70页

作者：李艳娜吉林省教育学院吉林长春130012

数字中国背景下,文化产业与互联网深度融合,实现了文产经济社会数字化转型升级,一大批运用数字技术参与创作的艺术作品应运而生。《只此青绿》成功的背后蕴含着艺术创作思维模式在数字技术背景下的创新,主要有三个方面:其一,打破了传统... 详细信息

数字中国背景下,文化产业与互联网深度融合,实现了文产经济社会数字化转型升级,一大批运用数字技术参与创作的艺术作品应运而生。《只此青绿》成功的背后蕴含着艺术创作思维模式在数字技术背景下的创新,主要有三个方面:其一,打破了传统与现代的界限,采用“舞蹈诗剧”这一特别呈现形式,以“静待入画”的展卷人和“出画入人”的画中青绿为主角;其二,通过数字技术手段给予艺术家更多艺术创造可能性、给予传统艺术形式以震撼的视觉盛宴,将虚拟布景与现实舞台结合,营造虚幻与现实交织的氛围,使舞台呈现更加富有层次感、立体感;其三,中华传统文化资源在数字中国背景下给予文化产业全新赋能,推动供给侧与需求侧协调发展,从而实现社会效应和市场效应双丰收盛况。

关键词：数字技术中华文化艺术创新《只此青绿》

Dynamic Response Impact of Vehicle Braking on Simply Supported Beam Bridges with Corrugated Steel Webs Based on Vehicle-Bridge Coupled Vibration Analysis

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Computer Modeling in Engineering & Sciences 2024年第6期139卷 3467-3493页

作者： yan Wang Siwen li na Wei School of Civil Engineering Zhengzhou UniversityZhengzhou450001China

A novel approach for analyzing coupled vibrations between vehicles and bridges is presented,taking into account spatiotemporal effects and mechanical phenomena resulting fromvehicle *** modeling and solution of bridge vibrations induced by vehicle deceleration are realized using this *** method’s validity and reliability are substantiated through numerical examples.A simply supported beam bridge with a corrugated steel web is taken as an example and the effects of parameters such as the initial vehicle speed,braking acceleration,braking location,and road surface roughness on the mid-span displacement and impact factor of the bridge are *** results show that vehicle braking significantly amplifies mid-span displacement and impact factor responses in comparison to uniform vehicular motion across the ***,the influence of wheelto-bridge friction forces is of particular significance and cannot be *** the vehicle initiates braking near the middle of the span,both the mid-span displacement and impact factor of the bridge exhibit substantial increases,further escalating with higher braking *** favorable road surface conditions,the midspan displacement and the impact factor during vehicle braking may exceed the design values stipulated by *** is important to note that road surface roughness exerts a more pronounced effect on the impact factor of the bridge in comparison to the effects of vehicle braking.

关键词： Corrugated steel web girder bridges simply supported beam bridges vehicle-bridge coupled vibration braking impact factor

基础理论与实践应用深度融合的生物化学教学——Henderson-Hasselbalch方程

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化学教育（中英文） 2024年第14期45卷 98-104页

作者：海华何明磊那立艳金黎明高明波门磊李兴泰冮洁朴永哲金华李春斌权春善李婷婷陈会英王艳颖大连民族大学生命科学学院辽宁大连116600

以生物化学课程基础理论教学中Henderson-Hasselbalch方程的教学为例,对其教学内容和教学方法进行改革,深入挖掘该方程在多种实践及工程中的应用,尝试在教学中扩展其实践与应用的讲解。结果表明,通过对该方程实践与应用深入细致地讲解,... 详细信息

以生物化学课程基础理论教学中Henderson-Hasselbalch方程的教学为例,对其教学内容和教学方法进行改革,深入挖掘该方程在多种实践及工程中的应用,尝试在教学中扩展其实践与应用的讲解。结果表明,通过对该方程实践与应用深入细致地讲解,能使学生更好地理解和掌握该方程,有效夯实学生对该理论知识的理解和掌握,同时能提高学生应用该方程思考实际问题并做出理性判断的能力。

关键词： Henderson-Hasselbalch方程生物化学教学改革实践与应用

Boosted sustained-release with iron-based MOF-derived mesoporouscarbon-spheres as a nitroimidazole drugs carrier

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Particuology 2024年第3期86卷 269-280页

作者： Danping Wu Jiaying Zou Junyi Chen yan li na Ma Wei Dai College of Chemistry and Materials Science Zhejiang Normal UniversityJinhua321004China College of life Sciences Zhejiang Normal UniversityJinhua321004China College of Geography and Environmental Sciences Zhejiang Normal UniversityJinhua321004China

Metal-organic framework(MoF)with a buildable internal structure has aroused great interest focus as self-sacrificing precursors of porous carbon(PC).However,as a drug carrier,the MOF-derived PC developed thus far are generally composed of irregular powder shape due to their crystalline nature,which consequently causing the cerebral infarction,cerebral thrombosis,and other blood *** this article,we propose a novel approach to constructing amorphous carbon microspheres(AcMs)by dis-torting the topological network through hydrothermal treatment precursors of MIL-101(Fe).Then,a distinctive MIL-101(Fe)-derived spherical porous carbons(MSPC)is achieved through high temperature calcination toward *** of the glucose initial concentration and hydrothermal treatment time on the sphericity of the as-prepared mesoporous MsPC were investigated in *** the loading capacities and sustained-release performances of nitroimidazole drugs over MsPC through simulation internal environment of human body at different pH values was systematically *** nitro-imidazole drugs loading rate and release time of MsPC are 10% and 17 h under preferred ***,the MSPC exhibited very low toxicity on Hela cells and 293T cells at the concentrations tested(10-800μg mL^(-1)).This study,therefore,supports the potential of the mesoporous carbon spheres as a carrierfor nitroimidazole drug delivery.

关键词： Ornidazole Metronidazole Carbon spheres Sustained-release performance Biocompatibility

Global trends in COVID-19

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Infectious Medicine 2022年第1期1卷 31-39页

作者： Chuan-Min Zhou Xiang-Rong Qin li-na yan Yuan Jiang Xue-Jie Yu Department of Infectious Diseases Zhongnan HospitalWuhan UniversityWuhan430071Hubei ProvinceChina State Key Laboratory of Virology School of Health SciencesWuhan UniversityWuhan430071Hubei ProvinceChina Department of Clinical Laboratory the Second Hospital of Shandong UniversityJinan250033Shandong ProvinceChina

The pandemic COVID-19 is certainly one of the most severe infectious diseases in human *** the last 2 years,the COVID-19 pandemic has caused over 418.6 million confirmed cases and 5.8 million deaths *** people make up the majority of all infected COVID-19 cases,but the mortality rate is relatively lower compared to older age ***,about 55.04%individuals have been fully vaccinated rapidly approaching to herd immunity *** challenge is that new SARS-CoV-2 variants with potential to evade immunity from natural infection or vaccine continue to *** infections have occurred in both SARS-CoV-2 naturally infected and vaccinated individuals,but breakthrough infections tended to exhibit mild or asymptomatic symptoms and lower mortality ***,immunity from natural infection or vaccination can reduce SARS-CoV-2 pathogenicity,but neither can completely prevent SARS-CoV-2 infection/***,the morbidity and mortality of COVID-19 continue to *** 7-day average cumulative case fatality of COVID-19 has decreased from 12.3%on the February 25,2020,to 0.27%on January 09,2022,which could be related to a decreased SARS-CoV-2 variant virulence,vaccine immunization,and/or better treatment of *** conclusion,elimination of SARS-CoV-2 in the world could be impossible or at least an arduous task with a long way to *** best strategy to prevent COVID-19 pandemic is to expand inoculation rate of effective *** the population reaches herd immunity,the mortality rate of COVID-19 may continue to decrease,and COVID-19 could eventually become another common cold.

关键词： COVID-19 SARS-CoV-2 Herd immunity Case fatality rate Breakthrough infection Delta variant Omicron variant Vaccine

Ginsenoside Rd Induces Differentiation of Myeloid Leukemia Cells via Regulating ERK/GSK-3βSignaling Pathway

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Chinese Journal of Integrative Medicine 2024年第7期30卷 588-599页

作者： JIANG Yu-xia ZHAO yan-na YU Xiao-ling YIN li-ming Department of Hematology Tongde Hospital of Zhejiang ProvinceHangzhou310012China Institute of Hematology Research the First Affiliated Hospital of Zhejiang Chinese Medical University(Zhejiang Provincial Hospital of Chinese Medicine)Hangzhou310006China

Objective To investigate the role of ginsenoside Rd(GRd)in acute myeloid leukemia(AML)cell *** AML cells were treated with GRd(25,50,100 and 200µg/mL),retinoic acid(RA,0.1g/L)and PD98059(20 mg/mL)for 72 h,cell survival was detected by methylthiazolyldiphenyl-tetrazolium bromide and colony formation assays,and cell cycle was detected by flow *** morphology and differentiation were observed by Wright-Giemsa staining,peroxidase chemical staining and cellular immunochemistry assay,*** protein expression levels of GATA binding protein 1(GATA-1),purine rich Box-1(PU.1),phosphorylated-extracellular signal-related kinase(p-ERK),ERK,phosphorylated-glycogen synthase kinase-3β(p-GSK3β),GSK3βand signal transducer and activator of transcription 1(STAT1)were detected by Western ***-six mice were randomly divided into 3 groups using a random number table:model control group(non-treated),GRd group[treated with 200 mg/(kg·d)GRd]and homoharringtonine(HTT)group[treated with 1 mg/(kg·d)HTT].A tumor-bearing nude mouse model was established,and tumor weight and volume were *** of subcutaneous tumor tissue were observed after hematoxylin and eosin ***1 and GATA-1 expressions were detected by immunohistochemical *** The cell survival was inhibited by GRd in a dose-dependent manner and GRd caused G0/G1 cell arrest(plicited upregulation of p-ERK,p-GSK-3βand STAT1 expressions in cells,and reversed the effects of PD98059 on inhibiting the expressions of peroxidase,GATA-1 and PU.1(P<0.05).After GRd treatment,tumor weight and volume of mice were decreased,and tumor cells underwent massive apoptosis and necrosis(P<0.05).WT1 level was decreased,and GATA-1 level was significantly increased in subcutaneous tumor ti

关键词： ginsenoside Rd myeloid leukemia survival differentiation extracellular signal-related kinase signaling pathway

A New Encrypted Traffic Identification Model Based on VAE-LSTM-DRN

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Computers, Materials & Continua 2024年第1期78卷 569-588页

作者： Haizhen Wang Jinying yan na Jia College of Computer and Control Engineering Qiqihar UniversityQiqihar161006China Heilongjiang Key Laboratory of Big Data Network Security Detection and Analysis Qiqihar UniversityQiqiharChina

Encrypted traffic identification pertains to the precise acquisition and categorization of data from traffic datasets containing imbalanced and obscured *** extraction of encrypted traffic attributes and their subsequent identification presents a formidable *** existing models have predominantly relied on direct extraction of encrypted traffic data from imbalanced datasets,with the dataset’s imbalance significantly affecting the model’s *** the present study,a new model,referred to as UD-VLD(Unbalanced Dataset-VAE-LSTM-DRN),was proposed to address above *** proposed model is an encrypted traffic identification model for handling unbalanced *** encoder of the variational autoencoder(VAE)is combined with the decoder and Long-short term Memory(LSTM)in UD-VLD model to realize the data enhancement processing of the original unbalanced *** enhanced data is processed by transforming the deep residual network(DRN)to address neural network gradient-related ***,the data is classified and *** UD-VLD model integrates the related techniques of deep learning into the encrypted traffic recognition technique,thereby solving the processing problem for unbalanced *** UD-VLD model was tested using the publicly available Tor dataset and VPN *** UD-VLD model is evaluated against other comparative models in terms of accuracy,loss rate,precision,recall,F1-score,total time,and ROC *** results reveal that the UD-VLD model exhibits better performance in both binary and multi classification,being higher than other encrypted traffic recognition models that exist for unbalanced ***,the evaluation performance indicates that the UD-VLD model effectivelymitigates the impact of unbalanced data on traffic *** can serve as a novel solution for encrypted traffic identification.

关键词： Data enhancement LSTM deep residual network VAE

Nickel-catalyzed carbonylative four-component 1,4-dicarbofunctionalization of 1,3-enynes

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Science China Chemistry 2024年第6期67卷 2029-2038页

作者： yan Zhao Qi-Chao Shan Hong Xin Pin Gao Xu yang Xin-Hua Duan li-na Guo Department of Chemistry School of ChemistryXi’an Key Laboratory of Sustainable Energy Material Chemistry and Engineering Research Center of Energy StorageMaterials and DevicesMinistry of EducationXi’an Jiaotong UniversityXi’an710049China School of Electrical Engineering Xi’an Jiaotong UniversityXi’an710049China

An efficient Ni-catalyzed four-component 1,4-carbocarbonylation of 1,3-enynes with activated alkyl halides and arylboronic acids under atmospheric pressure of CO is *** tuning the electronic and steric effects of alkyl radicals,both electronrich and electron-deficient 1,3-enynes were compatible with this *** protocol features mild conditions,broad substrate scope,excellent functional group compatibility and facile gram-scale synthesis,providing a practical approach to the quaternary carbon center-containing allenyl *** study revealed that the acyl-NiIIspecies plays an important role in both the coupling and the alkyl radical generation processes.

关键词： Ni catalysis four-component 1 4-carbocarbonylation 1 3-enynes

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Large eddy simulation study of 3D wind field in a complex mountainous area under different boundary conditions

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2024年第7期25卷 541-556页

作者： yan li Lei yan Xuhui HE School of Civil Engineering Central South UniversityChangsha410075China national Engineering Research Center for High-speed Railway Construction Changsha410075China Hunan Provincial Key Laboratory for Disaster Prevention and Mitigation of Rail Transit Engineering Structures Changsha410075China

Large eddy simulations generally are used to predict 3D wind field characteristics in complex mountainous *** simulation boundary conditions,such as the height and length of the computational domain or the characteristics of inflow turbulence,can significantly impact the quality of *** this study,we examined these boundary conditions within the context of the mountainous terrain around a long-span cable-stayed bridge using a wind tunnel *** sizes of computational domains and turbulent incoming wind velocities were used in large eddy *** results show that when the height of the computational domain is five times greater than the height of the terrain model,there is minimal influence from the top wall on the wind field characteristics in this complex mountainous *** the length of the wake region of the computational domain has negligible effects on the wind *** in the inlet boundary reduces the length of the wake region on a leeward hill with a low slope,but has less impact on the mean wind velocity of steep hills.

关键词： Large eddy simulation(LES) Spectral representation method Recycling method High mountainous canyon Wind characteristics Atmospheric boundary layer Computational domain