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安徽省文化产业高质量发展的地区差异及动态演进

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安庆师范大学学报（社会科学版） 2024年第2期43卷 40-51页

作者：丁仕潮桂代运张飞扬安庆师范大学经济与管理学院安徽安庆246133

基于文化产业的经济属性与社会属性,从“双效统一”的角度构建包括市场规模、产业结构、生产效率、创新能力、发展环境、产业民生6个维度18个指标的文化产业高质量发展评价指标体系,运用熵值法测度2012—2020年安徽省16个地级市的文化... 详细信息

基于文化产业的经济属性与社会属性,从“双效统一”的角度构建包括市场规模、产业结构、生产效率、创新能力、发展环境、产业民生6个维度18个指标的文化产业高质量发展评价指标体系,运用熵值法测度2012—2020年安徽省16个地级市的文化产业高质量发展水平,并利用Dagum基尼系数、Kernel密度估计、传统和空间Markov链描述其地区差异及动态演进特征。结果表明:安徽省文化产业发展质量呈现稳步提升态势,但整体水平较低,且呈现“皖中-皖南-皖北”依次递减的空间分布格局;安徽省文化产业高质量发展水平存在显著的地区差异,表现为地区间差异和地区内部差异;皖北、皖中、皖南三大地区绝对差异缩小,极化现象减弱;文化产业高质量发展水平等级锁定较为严重,不同等级水平的地级市之间较难实现等级跃迁,但随着时间的推移,向上转移概率大于向下转移概率,低水平城市有望实现跨越。产业民生成为制约文化产业高质量发展的主要障碍因子。

关键词：文化产业高质量发展地区差异动态演进

Analysis and optimization of stamping and forming process of bearing outer ring

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Theoretical & Applied Mechanics Letters 2024年第3期14卷 227-237页

作者： shichao Zhu Yulu ding Bing Long Hun Guo Linhan Ouyang Wengang Chen Zhengyi Jiang College of Aeronautics and Mechanical Engineering Changzhou Institute of TechnologyChangzhou 213002China College of Economics and Management Nanjing University of Aeronautics and AstronauticsNanjing 211106China eering University of WollongongWollongong NSW 2522Australia

To address the common issues of wrinkling,tearing,and uneven wall thickness in the actual sheet metal stamp-ing process of the outer ring of needle roller bearings,this study analyzes critical technical indicators such asforming limits,thickness distribution,and principal strains in the forming process in ***-dimensionalmodels of the concave and convex dies were *** effects of different process parameters,includingstamping speed,edge pressure,sheet metal thickness,and friction coefficient,on the quality of the forming partswere investigated by varying these ***,the orthogonal experimental method was used todetermine an optimal experimental group from multiple sets of *** was found that under the processparameters of a stamping speed of 3000 mm/s,edge pressure of 2000 N,sheet metal thickness of 0.9 mm,andfriction coefficient of 0.125,the forming quality of the outer ring of the bearing is ideal.

关键词： Plate stamping Bearing outer ring Mold design Optimization

Recent progress on rational design of catalysts for fermentative hydrogen production

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SusMat 2022年第4期2卷 392-410页

作者： Yifan Chai Zhaoyuan Lyu Huitong Du Pan Li shichao ding Yujing Jiang Hua Wang Qianhao Min Dan Du Yuehe Lin Wenlei Zhu State Key Laboratory of Pollution Control and Resource Reuse State Key Laboratory of Analytical Chemistry for Life ScienceThe Frontiers Science Center for Critical Earth Material CyclingSchool of the EnvironmentSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjingP.R.China School of Mechanical and Materials Engineering Washington State UniversityPullmanWashingtonUSA School of Life Sciences Huzhou UniversityHuzhouP.R.China

The increasingly severe energy crisis has strengthened the determination to develop environmentally friendly *** hydrogen has emerged as a candi-date for clean *** many hydrogen generation methods,biohydrogen stands out due to its environmental sustainability,simple operating environ-ment,and cost *** review focuses on the rational design of catalysts for fermentative hydrogen *** principles of microbial dark fermen-tation and photo-fermentation are elucidated *** strategies to increase the efficiency of fermentative hydrogen production are summa-rized,and some recent representative works from microbial dark fermentation and photo-fermentation are ***,perspectives and discussions on the rational design of catalysts for fermentative hydrogen production are provided.

关键词： catalysts fermentation hydrogen production renewable energy

Bulk preparation of free-standing single-iron-atom catalysts directly as the air electrodes for high-performance zinc-air batteries

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Carbon Energy 2023年第5期5卷 57-66页

作者： Hong-Bo Zhang Yu Meng Hong Zhong Lili Zhang shichao ding Lingzhe Fang Tao Li Yi Mei Peng-Xiang Hou Chang Liu Scott P.Beckman Yuehe Lin Hui-Ming Cheng Jin-Cheng Li Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials Faculty of Chemical EngineeringKunming University of Science and TechnologyKunmingChina Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyangChina School of Mechanical and Materials Engineering Washington State UniversityPullmanWashingtonUSA Department of Chemistry and Biochemistry Northern Illinois UniversityDeKalbIllinoisUSA Argonne National Laboratory X-Ray Science DivisionLemontIllinoisUSA

The keen interest in fuel cells and metal-air batteries stimulates a great deal of research on the development of a cost-efficient and high-performance catalyst as an alternative to traditional Pt to boost the sluggish oxygen reduction reaction(ORR)at the ***,we report a facile and scalable strategy for the large-scale preparation of a free-standing and flexible porous atomically dispersed Fe-N-doped carbon microtube(FeSAC/PCMT)*** from its unique structure that greatly facilitates the catalytic kinetics,mass transport,and electron transfer,our FeSAC/PCMT electrode exhibits excellent performance with an ORR potential of 0.942 V at^(-3) mA cm^(-2).When the FeSAC/PCMT sponge was directly used as an oxygen electrode for liquid-state and flexible solid-state zinc-air batteries,high peak power densities of 183.1 and 58.0 mW cm^(-2) were respectively achieved,better than its powdery counterpart and commercial Pt/C *** and theoretical investigation results demonstrate that such ultrahigh ORR performance can be attributed to atomically dispersed Fe-N_(5) species in FeSAC/*** study presents a cost-effective and scalable strategy for the fabrication of highly efficient and flexible oxygen electrodes,provides a significant new insight into the catalytic mechanisms,and helps to realize significant advances in energy devices.

关键词： atomic Fe-N_(5)species free-standing electrode large-scale preparation oxygen reduction reaction zinc-air battery

Zeptomole Imaging of Cytosolic MicroRNA Cancer Biomarkers with A Light-Controlled Nanoantenna

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Nano-Micro Letters 2021年第12期13卷 468-482页

作者： Yang Song Xiaoli Cai Grayson Ostermeyer shichao ding Dan Du Yuehe Lin School of Mechanical and Materials Engineering Washington State UniversityPullmanWA 99164USA Nanosong Systems LLC RedmondWA 98052USA School of Biological Sciences Washington State UniversityPullmanWA 99164USA

Detecting and quantifying intracellular microRNAs(miRNAs)are a critical step in resolving a cancer diagnostic and resolving the ensemble of gene products that orchestrate the living state of ***,the nanoprobe for detecting low abundance miRNAs in cell cytosol is restricted by either the"one-to-one"signaltrigger model or di culty for cytosol *** address these challenges,we designed a lightharvesting nanoantenna-based nanoprobe,which directs excitation energy to a single molecule to sensitively detect cytosolic *** light irradiation,the light-harvesting nanoantenna e ectively disrupted lysosomal structures by generationof reactive oxygen species,substantially achieved cytosol *** nanoantenna containing>4000 donor dyes can e ciently transfer excitation energy to one or two acceptors with 99%e ciency,leading to unprecedented signal amplification and biosensing *** designed nanoantenna can quantify cytosolic miR-210 at zeptomolar *** fluorescence lifetime of the donor exhibited good relationship with miR-210 concentration in the range of 0.032 to 2.97 amol/*** zeptomole sensitivity of nanoantenna provides accurate bioimaging of miR-210 both in multiple cell lines and in vivo assay,which creates a pathway for the creation of miRNA toolbox for quantitative epigenetics and personalized medicine.

关键词： Light-harvest Nanoantenna miRNA detection Zeptomole Multiple cell lines

A Selective‑Response Hypersensitive Bio‑Inspired Strain Sensor Enabled by Hysteresis Effect and Parallel Through‑Slits Structures

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Nano-Micro Letters 2024年第2期16卷 139-153页

作者： Qun Wang Zhongwen Yao Changchao Zhang Honglie Song Hanliang ding Bo Li shichao Niu Xinguan Huang Chuanhai Chen Zhiwu Han Luquan Ren Key Laboratory of Bionic Engineering(Ministry of Education) Jilin UniversityChangchunJilin 130022People’s Republic of China Liaoning Academy of Materials LiaoningShenyang 110167People’s Republic of China Key Laboratory of CNC Equipment Reliability(Ministry of Education) Jilin UniversityChangchunJilin 130022People’s Republic of China

Flexible strain sensors are promising in sensing minuscule mechanical signals,and thereby widely used in various advanced ***,the effective integration of hypersensitivity and highly selective response into one flexible strain sensor remains a huge ***,inspired by the hysteresis strategy of the scorpion slit receptor,a bio-inspired flexible strain sensor(BFSS)with parallel through-slit arrays is designed and ***,BFSS consists of conductive monolayer graphene and viscoelastic styrene–isoprene–styrene block *** the synergistic effect of the bio-inspired slit structures and flexible viscoelastic materials,BFSS can achieve both hypersensitivity and highly selective frequency ***,the BFSS exhibits a high gage factor of 657.36,and a precise identification of vibration frequencies at a resolution of 0.2 Hz through undergoing different morphological changes to high-frequency vibration and low-frequency ***,the BFSS possesses a wide frequency detection range(103 Hz)and stable durability(1000 cycles).It can sense and recognize vibration signals with different characteristics,including the frequency,amplitude,and *** work,which turns the hysteresis effect into a"treasure,"can provide new design ideas for sensors for potential applications including human–computer interaction and health monitoring of mechanical equipment.

关键词： Bio-inspired strain sensors Hysteresis effect Hypersensitivity Selective frequency response Health monitoring applications

Iron-Imprinted Single-Atomic Site Catalyst-Based Nanoprobe for Detection of Hydrogen Peroxide in Living Cells

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Nano-Micro Letters 2021年第9期13卷 364-376页

作者： Zhaoyuan Lyu shichao ding Maoyu Wang Xiaoqing Pan Zhenxing Feng Hangyu Tian Chengzhou Zhu Dan Du Yuehe Lin School of Mechanical and Materials Engineering Washington State UniversityPullmanWA 99164USA School of Chemical Biologicaland Environmental EngineeringOregon State UniversityCorvallisOR 97331USA Irvine Materials Research Institute(IMRI) University of CaliforniaIrvineCA 92697USA

Fe-based single-atomic site catalysts(SASCs),with the natural metalloproteases-like active site structure,have attracted widespread attention in biocatalysis and ***,controlling the isolated single-atom Fe-N-C active site structure is crucial to improve the SASCs’*** this work,we use a facile ion-imprinting method(IIM)to synthesize isolated Fe-N-C single-atomic site catalysts(IIM-Fe-SASC).With this method,the ion-imprinting process can precisely control ion at the atomic level and form numerous well-defined single-atomic Fe-N-C *** IIM-Fe-SASC shows better peroxidase-like activities than that of non-imprinted *** to its excellent properties,IIM-Fe-SASC is an ideal nanoprobe used in the colorimetric biosensing of hydrogen peroxide(H_(2)O_(2)).Using IIM-Fe-SASC as the nanoprobe,in situ detection of H_(2)O_(2)generated from MDA-MB-231 cells has been successfully demonstrated with satisfactory sensitivity and *** work opens a novel and easy route in designing advanced SASC and provides a sensitive tool for intracellular H_(2)O_(2)detection.

关键词： Single-atomic site catalysts Nanoprobe Peroxidase-like activities Biosensing Living cell

ANALYSIS OF TOOTH FORM ERROR OF EQUAL BASE CIRCLE BEVEL GEAR

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Chinese Journal of Mechanical Engineering 1995年第4期8卷 287-290页

作者： Gong Yunpeng ding shichao Cai Chunyuan(Northeastern University)

The basic principle of equal base circle bevel gear (EBCBG) is illustrated simply Thetooth surface equation of EBCBG manufactured by end milling cutter with involute profile is de-rived. The tooth form error is analy... 详细信息

关键词： Equal base circle bevel gear Tooth surface equation Tooth form error

Single-Atomic Site Catalyst Enhanced Lateral Flow Immunoassay for Point-of-Care Detection of Herbicide

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Research 2023年第1期2022卷 63-74页

作者： Zhaoyuan Lyu shichao ding Peter Tieu Lingzhe Fang Xin Li Tao Li Xiaoqing Pan Mark H.Engelhard Xiaofan Ruan Dan Du Suiqiong Li Yuehe Lin School of Mechanical and Material Engineering Washington State UniversityPullmanWA 99164USA Department of Chemistry University of CalforniaIrvineIrvineCA 92697USA Department of Chemistry and Biochemistry Northern Ilinois UniversityDeKalbIL 60115USA X-ray Science Division Argonne National LaboratoryLemontIL 60439USA Irvine Materials Research Institute(IMRI) Department of Materials Science and EngineeringUniversity of CaliforniaIrvineIrvineCA92697USA Environmental Molecular Sciences Laboratory Pacific Northwest National LaboratoryRichlandWA 99354USA DL ADV-Tech PullmanWA 99163USA

Point-of-care(POC)detection of herbicides is of great importance due to their impact on the environment and potential risks to human ***,we design a single-atomic site catalyst(SASC)with excellent peroxidase-like(POD-like)catalytic activity,which enhances the detection performance of corresponding lateral flow immunoassay(LFIA).The iron single-atomic site catalyst(Fe-SASC)is synthesized from hemin-doped ZIF-8,creating active sites that mimic the Fe active center coordination environment of natural enzyme and their *** to its atomically dispersed iron active sites that result in maximum utilization of active metal atoms,the Fe-SASC exhibits superior POD-like activity,which has great potential to replace its natural ***,the catalytic mechanism of Fe-SASC is systematically *** its outstanding catalytic activity,the Fe-SASC is used as label to construct LFIA(Fe-SASC-LFIA)for herbicide *** 2,4-dichlorophenoxyacetic acid(2,4-D)is selected as a target here,since it is a commonly used herbicide as well as a biomarker for herbicide exposure evaluation.A linear detection range of 1-250 ng/mL with a low limit of detection(LOD)of 0.82 ng/mL has been ***,excellent specificity and selectivity towards 2,4-D have been *** outstanding detection performance of the Fe-SASC-LFIA has also been demonstrated in the detection of human urine samples,indicating the practicability of this POC detection platform for analyzing the 2,4-D exposure level of a *** believe this proposed Fe-SASC-LFIA has potential as a portable,rapid,and high-sensitive POC detection strategy for pesticide exposure evaluation.

关键词： catalyst replace dispersed